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chromium / external / github.com / GNOME / gtk.git / refs/heads/upstream/widget-class-actions / . / gtk / gtktreeview.c
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/* gtktreeview.c
* Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford <jrb@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gtktreeview.h"
#include "gtkadjustmentprivate.h"
#include "gtkbox.h"
#include "gtkbindings.h"
#include "gtkbuildable.h"
#include "gtkbutton.h"
#include "gtkcelllayout.h"
#include "gtkcellrenderer.h"
#include "gtkcontainer.h"
#include "gtkcssnumbervalueprivate.h"
#include "gtkcssrgbavalueprivate.h"
#include "gtkcssstylepropertyprivate.h"
#include "gtkdragdest.h"
#include "gtkdragsource.h"
#include "gtkentryprivate.h"
#include "gtksearchentryprivate.h"
#include "gtkeventcontrollerkey.h"
#include "gtkeventcontrollermotion.h"
#include "gtkeventcontrollerscroll.h"
#include "gtkframe.h"
#include "gtkgesturedrag.h"
#include "gtkgestureclick.h"
#include "gtkgesturesingle.h"
#include "gtkintl.h"
#include "gtklabel.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtkprivate.h"
#include "gtktext.h"
#include "gtktreerbtreeprivate.h"
#include "gtkrendericonprivate.h"
#include "gtkscrollable.h"
#include "gtksettingsprivate.h"
#include "gtksnapshot.h"
#include "gtkstylecontextprivate.h"
#include "gtktooltip.h"
#include "gtktreednd.h"
#include "gtktreemodelsort.h"
#include "gtktreeprivate.h"
#include "gtktypebuiltins.h"
#include "gtkwidgetpath.h"
#include "gtkwidgetprivate.h"
#include "gtkwindowgroup.h"
#include "gtknative.h"
#include "a11y/gtktreeviewaccessibleprivate.h"
#include "gdk/gdkeventsprivate.h"
#include <math.h>
#include <string.h>
/**
* SECTION:gtktreeview
* @Short_description: A widget for displaying both trees and lists
* @Title: GtkTreeView
* @See_also: #GtkTreeViewColumn, #GtkTreeSelection, #GtkTreeModel,
* [GtkTreeView drag-and-drop][gtk3-GtkTreeView-drag-and-drop],
* #GtkTreeSortable, #GtkTreeModelSort, #GtkListStore, #GtkTreeStore,
* #GtkCellRenderer, #GtkCellEditable, #GtkCellRendererPixbuf,
* #GtkCellRendererText, #GtkCellRendererToggle
*
* Widget that displays any object that implements the #GtkTreeModel interface.
*
* Please refer to the
* [tree widget conceptual overview][TreeWidget]
* for an overview of all the objects and data types related
* to the tree widget and how they work together.
*
* Several different coordinate systems are exposed in the GtkTreeView API.
* These are:
*
* ![](tree-view-coordinates.png)
*
* Coordinate systems in GtkTreeView API:
*
* - Widget coordinates: Coordinates relative to the widget (usually `widget->window`).
*
* - Bin window coordinates: Coordinates relative to the window that GtkTreeView renders to.
*
* - Tree coordinates: Coordinates relative to the entire scrollable area of GtkTreeView. These
* coordinates start at (0, 0) for row 0 of the tree.
*
* Several functions are available for converting between the different
* coordinate systems. The most common translations are between widget and bin
* window coordinates and between bin window and tree coordinates. For the
* former you can use gtk_tree_view_convert_widget_to_bin_window_coords()
* (and vice versa), for the latter gtk_tree_view_convert_bin_window_to_tree_coords()
* (and vice versa).
*
* # GtkTreeView as GtkBuildable
*
* The GtkTreeView implementation of the GtkBuildable interface accepts
* #GtkTreeViewColumn objects as <child> elements and exposes the internal
* #GtkTreeSelection in UI definitions.
*
* An example of a UI definition fragment with GtkTreeView:
* |[
* <object class="GtkTreeView" id="treeview">
* <property name="model">liststore1</property>
* <child>
* <object class="GtkTreeViewColumn" id="test-column">
* <property name="title">Test</property>
* <child>
* <object class="GtkCellRendererText" id="test-renderer"/>
* <attributes>
* <attribute name="text">1</attribute>
* </attributes>
* </child>
* </object>
* </child>
* <child internal-child="selection">
* <object class="GtkTreeSelection" id="selection">
* <signal name="changed" handler="on_treeview_selection_changed"/>
* </object>
* </child>
* </object>
* ]|
*
* # CSS nodes
*
* |[<!-- language="plain" -->
* treeview.view
* ├── header
* │ ├── <column header>
* ┊ ┊
* │ ╰── <column header>
* │
* ╰── [rubberband]
* ]|
*
* GtkTreeView has a main CSS node with name treeview and style class .view.
* It has a subnode with name header, which is the parent for all the column
* header widgets' CSS nodes.
* For rubberband selection, a subnode with name rubberband is used.
*/
enum
{
DRAG_COLUMN_WINDOW_STATE_UNSET = 0,
DRAG_COLUMN_WINDOW_STATE_ORIGINAL = 1,
DRAG_COLUMN_WINDOW_STATE_ARROW = 2,
DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT = 3,
DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT = 4
};
enum
{
RUBBER_BAND_OFF = 0,
RUBBER_BAND_MAYBE_START = 1,
RUBBER_BAND_ACTIVE = 2
};
typedef enum {
CLEAR_AND_SELECT = (1 << 0),
CLAMP_NODE = (1 << 1),
CURSOR_INVALID = (1 << 2)
} SetCursorFlags;
/* This lovely little value is used to determine how far away from the title bar
* you can move the mouse and still have a column drag work.
*/
#define TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER(tree_view) (10*gtk_tree_view_get_effective_header_height(tree_view))
#ifdef __GNUC__
#define TREE_VIEW_INTERNAL_ASSERT(expr, ret) G_STMT_START{ \
if (!(expr)) \
{ \
g_log (G_LOG_DOMAIN, \
G_LOG_LEVEL_CRITICAL, \
"%s (%s): assertion `%s' failed.\n" \
"There is a disparity between the internal view of the GtkTreeView,\n" \
"and the GtkTreeModel. This generally means that the model has changed\n"\
"without letting the view know. Any display from now on is likely to\n" \
"be incorrect.\n", \
G_STRLOC, \
G_STRFUNC, \
#expr); \
return ret; \
}; }G_STMT_END
#define TREE_VIEW_INTERNAL_ASSERT_VOID(expr) G_STMT_START{ \
if (!(expr)) \
{ \
g_log (G_LOG_DOMAIN, \
G_LOG_LEVEL_CRITICAL, \
"%s (%s): assertion `%s' failed.\n" \
"There is a disparity between the internal view of the GtkTreeView,\n" \
"and the GtkTreeModel. This generally means that the model has changed\n"\
"without letting the view know. Any display from now on is likely to\n" \
"be incorrect.\n", \
G_STRLOC, \
G_STRFUNC, \
#expr); \
return; \
}; }G_STMT_END
#else
#define TREE_VIEW_INTERNAL_ASSERT(expr, ret) G_STMT_START{ \
if (!(expr)) \
{ \
g_log (G_LOG_DOMAIN, \
G_LOG_LEVEL_CRITICAL, \
"file %s: line %d: assertion `%s' failed.\n" \
"There is a disparity between the internal view of the GtkTreeView,\n" \
"and the GtkTreeModel. This generally means that the model has changed\n"\
"without letting the view know. Any display from now on is likely to\n" \
"be incorrect.\n", \
__FILE__, \
__LINE__, \
#expr); \
return ret; \
}; }G_STMT_END
#define TREE_VIEW_INTERNAL_ASSERT_VOID(expr) G_STMT_START{ \
if (!(expr)) \
{ \
g_log (G_LOG_DOMAIN, \
G_LOG_LEVEL_CRITICAL, \
"file %s: line %d: assertion '%s' failed.\n" \
"There is a disparity between the internal view of the GtkTreeView,\n" \
"and the GtkTreeModel. This generally means that the model has changed\n"\
"without letting the view know. Any display from now on is likely to\n" \
"be incorrect.\n", \
__FILE__, \
__LINE__, \
#expr); \
return; \
}; }G_STMT_END
#endif
#define GTK_TREE_VIEW_PRIORITY_VALIDATE (GDK_PRIORITY_REDRAW + 5)
#define GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC (GTK_TREE_VIEW_PRIORITY_VALIDATE + 2)
/* 3/5 of gdkframeclockidle.c's FRAME_INTERVAL (16667 microsecs) */
#define GTK_TREE_VIEW_TIME_MS_PER_IDLE 10
#define SCROLL_EDGE_SIZE 15
#define GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT 5000
#define AUTO_EXPAND_TIMEOUT 500
/* Translate from bin_window coordinates to rbtree (tree coordinates) and
* vice versa.
*/
#define TREE_WINDOW_Y_TO_RBTREE_Y(tree_view,y) ((y) + tree_view->priv->dy)
#define RBTREE_Y_TO_TREE_WINDOW_Y(tree_view,y) ((y) - tree_view->priv->dy)
/* Vertical separator width. Must be an even number. */
#define _TREE_VIEW_VERTICAL_SEPARATOR 2
/* Horizontal separator width. Must be an even number. */
#define _TREE_VIEW_HORIZONTAL_SEPARATOR 4
/* Tree view grid line width, in pixels */
#define _TREE_VIEW_GRID_LINE_WIDTH 1
/* Tree view line width, in pixels */
#define _TREE_VIEW_TREE_LINE_WIDTH 1
typedef struct _GtkTreeViewColumnReorder GtkTreeViewColumnReorder;
struct _GtkTreeViewColumnReorder
{
gint left_align;
gint right_align;
GtkTreeViewColumn *left_column;
GtkTreeViewColumn *right_column;
};
typedef struct _GtkTreeViewChild GtkTreeViewChild;
struct _GtkTreeViewChild
{
GtkWidget *widget;
GtkTreeRBNode *node;
GtkTreeRBTree *tree;
GtkTreeViewColumn *column;
GtkBorder border;
};
typedef struct _TreeViewDragInfo TreeViewDragInfo;
struct _TreeViewDragInfo
{
GdkModifierType start_button_mask;
GdkDragAction source_actions;
guint source_set : 1;
guint dest_set : 1;
};
typedef struct _GtkTreeViewClass GtkTreeViewClass;
typedef struct _GtkTreeViewPrivate GtkTreeViewPrivate;
struct _GtkTreeView
{
GtkContainer parent;
GtkTreeViewPrivate *priv;
};
struct _GtkTreeViewClass
{
GtkContainerClass parent_class;
void (* row_activated) (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column);
gboolean (* test_expand_row) (GtkTreeView *tree_view,
GtkTreeIter *iter,
GtkTreePath *path);
gboolean (* test_collapse_row) (GtkTreeView *tree_view,
GtkTreeIter *iter,
GtkTreePath *path);
void (* row_expanded) (GtkTreeView *tree_view,
GtkTreeIter *iter,
GtkTreePath *path);
void (* row_collapsed) (GtkTreeView *tree_view,
GtkTreeIter *iter,
GtkTreePath *path);
void (* columns_changed) (GtkTreeView *tree_view);
void (* cursor_changed) (GtkTreeView *tree_view);
/* Key Binding signals */
gboolean (* move_cursor) (GtkTreeView *tree_view,
GtkMovementStep step,
gint count);
gboolean (* select_all) (GtkTreeView *tree_view);
gboolean (* unselect_all) (GtkTreeView *tree_view);
gboolean (* select_cursor_row) (GtkTreeView *tree_view,
gboolean start_editing);
gboolean (* toggle_cursor_row) (GtkTreeView *tree_view);
gboolean (* expand_collapse_cursor_row) (GtkTreeView *tree_view,
gboolean logical,
gboolean expand,
gboolean open_all);
gboolean (* select_cursor_parent) (GtkTreeView *tree_view);
gboolean (* start_interactive_search) (GtkTreeView *tree_view);
};
struct _GtkTreeViewPrivate
{
GtkTreeModel *model;
/* tree information */
GtkTreeRBTree *tree;
/* Container info */
GList *children;
gint width;
guint presize_handler_tick_cb;
/* Adjustments */
GtkAdjustment *hadjustment;
GtkAdjustment *vadjustment;
gint min_display_width;
gint min_display_height;
/* CSS nodes */
GtkCssNode *header_node;
/* Scroll position state keeping */
GtkTreeRowReference *top_row;
gint top_row_dy;
/* dy == y pos of top_row + top_row_dy */
/* we cache it for simplicity of the code */
gint dy;
guint validate_rows_timer;
guint scroll_sync_timer;
/* Indentation and expander layout */
GtkTreeViewColumn *expander_column;
gint level_indentation;
/* Key navigation (focus), selection */
gint cursor_offset;
GtkTreeRowReference *anchor;
GtkTreeRBNode *cursor_node;
GtkTreeRBTree *cursor_tree;
GtkTreeViewColumn *focus_column;
/* Current pressed node, previously pressed, prelight */
GtkTreeRBNode *button_pressed_node;
GtkTreeRBTree *button_pressed_tree;
gint press_start_x;
gint press_start_y;
gint event_last_x;
gint event_last_y;
GtkTreeRBNode *prelight_node;
GtkTreeRBTree *prelight_tree;
/* Cell Editing */
GtkTreeViewColumn *edited_column;
/* Auto expand/collapse timeout in hover mode */
guint auto_expand_timeout;
/* Selection information */
GtkTreeSelection *selection;
/* Header information */
gint header_height;
gint n_columns;
GList *columns;
GtkTreeViewColumnDropFunc column_drop_func;
gpointer column_drop_func_data;
GDestroyNotify column_drop_func_data_destroy;
GList *column_drag_info;
GtkTreeViewColumnReorder *cur_reorder;
gint prev_width_before_expander;
/* Scroll timeout (e.g. during dnd, rubber banding) */
guint scroll_timeout;
/* Interactive Header reordering */
GtkTreeViewColumn *drag_column;
gint drag_column_x;
gint drag_column_y;
/* Interactive Header Resizing */
gint drag_pos;
gint x_drag;
/* Row drag-and-drop */
GtkTreeRowReference *drag_dest_row;
GtkTreeViewDropPosition drag_dest_pos;
guint open_dest_timeout;
/* Rubber banding */
gint rubber_band_status;
gint rubber_band_x;
gint rubber_band_y;
gint rubber_band_extend;
gint rubber_band_modify;
/* fixed height */
gint fixed_height;
GtkTreeRBNode *rubber_band_start_node;
GtkTreeRBTree *rubber_band_start_tree;
GtkTreeRBNode *rubber_band_end_node;
GtkTreeRBTree *rubber_band_end_tree;
GtkCssNode *rubber_band_cssnode;
/* Scroll-to functionality when unrealized */
GtkTreeRowReference *scroll_to_path;
GtkTreeViewColumn *scroll_to_column;
gfloat scroll_to_row_align;
gfloat scroll_to_col_align;
/* Interactive search */
gint selected_iter;
gint search_column;
GtkTreeViewSearchPositionFunc search_position_func;
GtkTreeViewSearchEqualFunc search_equal_func;
gpointer search_user_data;
GDestroyNotify search_destroy;
gpointer search_position_user_data;
GDestroyNotify search_position_destroy;
GtkWidget *search_window;
GtkWidget *search_entry;
gulong search_entry_changed_id;
guint typeselect_flush_timeout;
/* Grid and tree lines */
GtkTreeViewGridLines grid_lines;
double grid_line_dashes[2];
gboolean tree_lines_enabled;
double tree_line_dashes[2];
/* Row separators */
GtkTreeViewRowSeparatorFunc row_separator_func;
gpointer row_separator_data;
GDestroyNotify row_separator_destroy;
/* Gestures */
GtkGesture *click_gesture;
GtkGesture *drag_gesture; /* Rubberbanding, row DnD */
GtkGesture *column_drag_gesture; /* Column reordering, resizing */
/* Tooltip support */
gint tooltip_column;
int expander_size;
/* Here comes the bitfield */
guint scroll_to_use_align : 1;
guint fixed_height_mode : 1;
guint fixed_height_check : 1;
guint activate_on_single_click : 1;
guint reorderable : 1;
guint header_has_focus : 1;
guint drag_column_surface_state : 3;
guint mark_rows_col_dirty : 1;
/* for DnD */
guint empty_view_drop : 1;
guint modify_selection_pressed : 1;
guint extend_selection_pressed : 1;
guint in_top_row_to_dy : 1;
/* interactive search */
guint enable_search : 1;
guint disable_popdown : 1;
guint search_custom_entry_set : 1;
guint hover_selection : 1;
guint hover_expand : 1;
guint imcontext_changed : 1;
guint in_scroll : 1;
guint rubber_banding_enable : 1;
guint in_grab : 1;
/* Whether our key press handler is to avoid sending an unhandled binding to the search entry */
guint search_entry_avoid_unhandled_binding : 1;
/* GtkScrollablePolicy needs to be checked when
* driving the scrollable adjustment values */
guint hscroll_policy : 1;
guint vscroll_policy : 1;
/* GtkTreeView flags */
guint is_list : 1;
guint show_expanders : 1;
guint in_column_resize : 1;
guint arrow_prelit : 1;
guint headers_visible : 1;
guint draw_keyfocus : 1;
guint model_setup : 1;
guint in_column_drag : 1;
};
/* Signals */
enum
{
ROW_ACTIVATED,
TEST_EXPAND_ROW,
TEST_COLLAPSE_ROW,
ROW_EXPANDED,
ROW_COLLAPSED,
COLUMNS_CHANGED,
CURSOR_CHANGED,
MOVE_CURSOR,
SELECT_ALL,
UNSELECT_ALL,
SELECT_CURSOR_ROW,
TOGGLE_CURSOR_ROW,
EXPAND_COLLAPSE_CURSOR_ROW,
SELECT_CURSOR_PARENT,
START_INTERACTIVE_SEARCH,
LAST_SIGNAL
};
/* Properties */
enum {
PROP_0,
PROP_MODEL,
PROP_HEADERS_VISIBLE,
PROP_HEADERS_CLICKABLE,
PROP_EXPANDER_COLUMN,
PROP_REORDERABLE,
PROP_ENABLE_SEARCH,
PROP_SEARCH_COLUMN,
PROP_FIXED_HEIGHT_MODE,
PROP_HOVER_SELECTION,
PROP_HOVER_EXPAND,
PROP_SHOW_EXPANDERS,
PROP_LEVEL_INDENTATION,
PROP_RUBBER_BANDING,
PROP_ENABLE_GRID_LINES,
PROP_ENABLE_TREE_LINES,
PROP_TOOLTIP_COLUMN,
PROP_ACTIVATE_ON_SINGLE_CLICK,
LAST_PROP,
/* overridden */
PROP_HADJUSTMENT = LAST_PROP,
PROP_VADJUSTMENT,
PROP_HSCROLL_POLICY,
PROP_VSCROLL_POLICY,
};
/* object signals */
static void gtk_tree_view_finalize (GObject *object);
static void gtk_tree_view_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_tree_view_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
/* gtkwidget signals */
static void gtk_tree_view_destroy (GtkWidget *widget);
static void gtk_tree_view_realize (GtkWidget *widget);
static void gtk_tree_view_unrealize (GtkWidget *widget);
static void gtk_tree_view_map (GtkWidget *widget);
static void gtk_tree_view_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline);
static void gtk_tree_view_size_allocate (GtkWidget *widget,
int width,
int height,
int baseline);
static void gtk_tree_view_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot);
static gboolean gtk_tree_view_key_controller_key_pressed (GtkEventControllerKey *key,
guint keyval,
guint keycode,
GdkModifierType state,
GtkTreeView *tree_view);
static void gtk_tree_view_key_controller_key_released (GtkEventControllerKey *key,
guint keyval,
guint keycode,
GdkModifierType state,
GtkTreeView *tree_view);
static void gtk_tree_view_key_controller_focus_out (GtkEventControllerKey *key,
GdkCrossingMode mode,
GdkNotifyType detail,
GtkTreeView *tree_view);
static gint gtk_tree_view_focus (GtkWidget *widget,
GtkDirectionType direction);
static void gtk_tree_view_grab_focus (GtkWidget *widget);
static void gtk_tree_view_style_updated (GtkWidget *widget);
/* container signals */
static void gtk_tree_view_remove (GtkContainer *container,
GtkWidget *widget);
static void gtk_tree_view_forall (GtkContainer *container,
GtkCallback callback,
gpointer callback_data);
/* Source side drag signals */
static void gtk_tree_view_drag_begin (GtkWidget *widget,
GdkDrag *drag);
static void gtk_tree_view_drag_end (GtkWidget *widget,
GdkDrag *drag);
static void gtk_tree_view_drag_data_get (GtkWidget *widget,
GdkDrag *drag,
GtkSelectionData *selection_data);
static void gtk_tree_view_drag_data_delete (GtkWidget *widget,
GdkDrag *drag);
/* Target side drag signals */
static void gtk_tree_view_drag_leave (GtkWidget *widget,
GdkDrop *drop);
static gboolean gtk_tree_view_drag_motion (GtkWidget *widget,
GdkDrop *drop,
gint x,
gint y);
static gboolean gtk_tree_view_drag_drop (GtkWidget *widget,
GdkDrop *drop,
gint x,
gint y);
static void gtk_tree_view_drag_data_received (GtkWidget *widget,
GdkDrop *drop,
GtkSelectionData *selection_data);
/* tree_model signals */
static gboolean gtk_tree_view_real_move_cursor (GtkTreeView *tree_view,
GtkMovementStep step,
gint count);
static gboolean gtk_tree_view_real_select_all (GtkTreeView *tree_view);
static gboolean gtk_tree_view_real_unselect_all (GtkTreeView *tree_view);
static gboolean gtk_tree_view_real_select_cursor_row (GtkTreeView *tree_view,
gboolean start_editing);
static gboolean gtk_tree_view_real_toggle_cursor_row (GtkTreeView *tree_view);
static gboolean gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView *tree_view,
gboolean logical,
gboolean expand,
gboolean open_all);
static gboolean gtk_tree_view_real_select_cursor_parent (GtkTreeView *tree_view);
static void gtk_tree_view_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_tree_view_row_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_tree_view_row_has_child_toggled (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_tree_view_row_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer data);
static void gtk_tree_view_rows_reordered (GtkTreeModel *model,
GtkTreePath *parent,
GtkTreeIter *iter,
gint *new_order,
gpointer data);
/* Incremental reflow */
static gboolean validate_row (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
GtkTreeRBNode *node,
GtkTreeIter *iter,
GtkTreePath *path);
static void validate_visible_area (GtkTreeView *tree_view);
static gboolean do_validate_rows (GtkTreeView *tree_view,
gboolean queue_resize);
static gboolean validate_rows (GtkTreeView *tree_view);
static void install_presize_handler (GtkTreeView *tree_view);
static void install_scroll_sync_handler (GtkTreeView *tree_view);
static void gtk_tree_view_set_top_row (GtkTreeView *tree_view,
GtkTreePath *path,
gint offset);
static void gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view);
static void gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view);
static void invalidate_empty_focus (GtkTreeView *tree_view);
/* Internal functions */
static gboolean gtk_tree_view_is_expander_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column);
static inline gboolean gtk_tree_view_draw_expanders (GtkTreeView *tree_view);
static void gtk_tree_view_add_move_binding (GtkBindingSet *binding_set,
guint keyval,
guint modmask,
gboolean add_shifted_binding,
GtkMovementStep step,
gint count);
static gint gtk_tree_view_unref_and_check_selection_tree (GtkTreeView *tree_view,
GtkTreeRBTree *tree);
static void gtk_tree_view_snapshot_arrow (GtkTreeView *tree_view,
GtkSnapshot *snapshot,
GtkTreeRBTree *tree,
GtkTreeRBNode *node);
static void gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
gint *x1,
gint *x2);
static void gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
GtkTreeView *tree_view);
static void gtk_tree_view_build_tree (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
GtkTreeIter *iter,
gint depth,
gboolean recurse);
static void gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
GtkTreeRBNode *node);
static void gtk_tree_view_clamp_column_visible (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
gboolean focus_to_cell);
static gboolean gtk_tree_view_maybe_begin_dragging_row (GtkTreeView *tree_view);
static void gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view);
static void gtk_tree_view_move_cursor_up_down (GtkTreeView *tree_view,
gint count);
static void gtk_tree_view_move_cursor_page_up_down (GtkTreeView *tree_view,
gint count);
static void gtk_tree_view_move_cursor_left_right (GtkTreeView *tree_view,
gint count);
static void gtk_tree_view_move_cursor_start_end (GtkTreeView *tree_view,
gint count);
static gboolean gtk_tree_view_real_collapse_row (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeRBTree *tree,
GtkTreeRBNode *node,
gboolean animate);
static gboolean gtk_tree_view_real_expand_row (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeRBTree *tree,
GtkTreeRBNode *node,
gboolean open_all,
gboolean animate);
static void gtk_tree_view_real_set_cursor (GtkTreeView *tree_view,
GtkTreePath *path,
SetCursorFlags flags);
static gboolean gtk_tree_view_has_can_focus_cell (GtkTreeView *tree_view);
static void column_sizing_notify (GObject *object,
GParamSpec *pspec,
gpointer data);
static void gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view);
static void update_prelight (GtkTreeView *tree_view,
int x,
int y);
static inline gint gtk_tree_view_get_effective_header_height (GtkTreeView *tree_view);
static inline gint gtk_tree_view_get_cell_area_y_offset (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
GtkTreeRBNode *node);
static inline gint gtk_tree_view_get_cell_area_height (GtkTreeView *tree_view,
GtkTreeRBNode *node);
static inline gint gtk_tree_view_get_row_y_offset (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
GtkTreeRBNode *node);
static inline gint gtk_tree_view_get_row_height (GtkTreeView *tree_view,
GtkTreeRBNode *node);
/* interactive search */
static void gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view);
static void gtk_tree_view_search_window_hide (GtkWidget *search_window,
GtkTreeView *tree_view,
GdkDevice *device);
static void gtk_tree_view_search_position_func (GtkTreeView *tree_view,
GtkWidget *search_window,
gpointer user_data);
static void gtk_tree_view_search_preedit_changed (GtkText *text,
const char *preedit,
GtkTreeView *tree_view);
static void gtk_tree_view_search_changed (GtkEditable *editable,
GtkTreeView *tree_view);
static void gtk_tree_view_search_activate (GtkEntry *entry,
GtkTreeView *tree_view);
static void gtk_tree_view_search_pressed_cb (GtkGesture *gesture,
int n_press,
double x,
double y,
GtkTreeView *tree_view);
static gboolean gtk_tree_view_search_scroll_event (GtkWidget *entry,
gdouble dx,
gdouble dy,
GtkTreeView *tree_view);
static gboolean gtk_tree_view_search_key_pressed (GtkEventControllerKey *key,
guint keyval,
guint keycode,
GdkModifierType state,
GtkTreeView *tree_view);
static gboolean gtk_tree_view_search_move (GtkWidget *window,
GtkTreeView *tree_view,
gboolean up);
static gboolean gtk_tree_view_search_equal_func (GtkTreeModel *model,
gint column,
const gchar *key,
GtkTreeIter *iter,
gpointer search_data);
static gboolean gtk_tree_view_search_iter (GtkTreeModel *model,
GtkTreeSelection *selection,
GtkTreeIter *iter,
const gchar *text,
gint *count,
gint n);
static void gtk_tree_view_search_init (GtkWidget *entry,
GtkTreeView *tree_view);
static void gtk_tree_view_put (GtkTreeView *tree_view,
GtkWidget *child_widget,
GtkTreePath *path,
GtkTreeViewColumn*column,
const GtkBorder *border);
static gboolean gtk_tree_view_start_editing (GtkTreeView *tree_view,
GtkTreePath *cursor_path,
gboolean edit_only);
static void gtk_tree_view_stop_editing (GtkTreeView *tree_view,
gboolean cancel_editing);
static gboolean gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
GdkDevice *device,
gboolean keybinding);
static gboolean gtk_tree_view_start_interactive_search (GtkTreeView *tree_view);
static GtkTreeViewColumn *gtk_tree_view_get_drop_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
gint drop_position);
/* GtkBuildable */
static void gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
GtkBuilder *builder,
GObject *child,
const gchar *type);
static GObject *gtk_tree_view_buildable_get_internal_child (GtkBuildable *buildable,
GtkBuilder *builder,
const gchar *childname);
static void gtk_tree_view_buildable_init (GtkBuildableIface *iface);
/* GtkScrollable */
static void gtk_tree_view_scrollable_init (GtkScrollableInterface *iface);
static void gtk_tree_view_do_set_hadjustment (GtkTreeView *tree_view,
GtkAdjustment *adjustment);
static void gtk_tree_view_do_set_vadjustment (GtkTreeView *tree_view,
GtkAdjustment *adjustment);
static gboolean scroll_row_timeout (gpointer data);
static void add_scroll_timeout (GtkTreeView *tree_view);
static void remove_scroll_timeout (GtkTreeView *tree_view);
static void grab_focus_and_unset_draw_keyfocus (GtkTreeView *tree_view);
/* Gestures */
static void gtk_tree_view_column_click_gesture_pressed (GtkGestureClick *gesture,
gint n_press,
gdouble x,
gdouble y,
GtkTreeView *tree_view);
static void gtk_tree_view_click_gesture_pressed (GtkGestureClick *gesture,
gint n_press,
gdouble x,
gdouble y,
GtkTreeView *tree_view);
static void gtk_tree_view_click_gesture_released (GtkGestureClick *gesture,
gint n_press,
gdouble x,
gdouble y,
GtkTreeView *tree_view);
static void gtk_tree_view_column_drag_gesture_begin (GtkGestureDrag *gesture,
gdouble start_x,
gdouble start_y,
GtkTreeView *tree_view);
static void gtk_tree_view_column_drag_gesture_update (GtkGestureDrag *gesture,
gdouble offset_x,
gdouble offset_y,
GtkTreeView *tree_view);
static void gtk_tree_view_column_drag_gesture_end (GtkGestureDrag *gesture,
gdouble offset_x,
gdouble offset_y,
GtkTreeView *tree_view);
static void gtk_tree_view_drag_gesture_begin (GtkGestureDrag *gesture,
gdouble start_x,
gdouble start_y,
GtkTreeView *tree_view);
static void gtk_tree_view_drag_gesture_update (GtkGestureDrag *gesture,
gdouble offset_x,
gdouble offset_y,
GtkTreeView *tree_view);
static void gtk_tree_view_drag_gesture_end (GtkGestureDrag *gesture,
gdouble offset_x,
gdouble offset_y,
GtkTreeView *tree_view);
static void gtk_tree_view_motion_controller_enter (GtkEventControllerMotion *controller,
double x,
double y,
GdkCrossingMode mode,
GdkNotifyType detail,
GtkTreeView *tree_view);
static void gtk_tree_view_motion_controller_leave (GtkEventControllerMotion *controller,
GdkCrossingMode mode,
GdkNotifyType detail,
GtkTreeView *tree_view);
static void gtk_tree_view_motion_controller_motion (GtkEventControllerMotion *controller,
double x,
double y,
GtkTreeView *tree_view);
static guint tree_view_signals [LAST_SIGNAL] = { 0 };
static GParamSpec *tree_view_props [LAST_PROP] = { NULL };
/* GType Methods
*/
G_DEFINE_TYPE_WITH_CODE (GtkTreeView, gtk_tree_view, GTK_TYPE_CONTAINER,
G_ADD_PRIVATE (GtkTreeView)
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_tree_view_buildable_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_SCROLLABLE,
gtk_tree_view_scrollable_init))
static void
gtk_tree_view_class_init (GtkTreeViewClass *class)
{
GObjectClass *o_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
GtkBindingSet *binding_set;
binding_set = gtk_binding_set_by_class (class);
o_class = (GObjectClass *) class;
widget_class = (GtkWidgetClass *) class;
container_class = (GtkContainerClass *) class;
/* GObject signals */
o_class->set_property = gtk_tree_view_set_property;
o_class->get_property = gtk_tree_view_get_property;
o_class->finalize = gtk_tree_view_finalize;
/* GtkWidget signals */
widget_class->destroy = gtk_tree_view_destroy;
widget_class->map = gtk_tree_view_map;
widget_class->realize = gtk_tree_view_realize;
widget_class->unrealize = gtk_tree_view_unrealize;
widget_class->measure = gtk_tree_view_measure;
widget_class->size_allocate = gtk_tree_view_size_allocate;
widget_class->snapshot = gtk_tree_view_snapshot;
widget_class->drag_begin = gtk_tree_view_drag_begin;
widget_class->drag_end = gtk_tree_view_drag_end;
widget_class->drag_data_get = gtk_tree_view_drag_data_get;
widget_class->drag_data_delete = gtk_tree_view_drag_data_delete;
widget_class->drag_leave = gtk_tree_view_drag_leave;
widget_class->drag_motion = gtk_tree_view_drag_motion;
widget_class->drag_drop = gtk_tree_view_drag_drop;
widget_class->drag_data_received = gtk_tree_view_drag_data_received;
widget_class->focus = gtk_tree_view_focus;
widget_class->grab_focus = gtk_tree_view_grab_focus;
widget_class->style_updated = gtk_tree_view_style_updated;
/* GtkContainer signals */
container_class->remove = gtk_tree_view_remove;
container_class->forall = gtk_tree_view_forall;
class->move_cursor = gtk_tree_view_real_move_cursor;
class->select_all = gtk_tree_view_real_select_all;
class->unselect_all = gtk_tree_view_real_unselect_all;
class->select_cursor_row = gtk_tree_view_real_select_cursor_row;
class->toggle_cursor_row = gtk_tree_view_real_toggle_cursor_row;
class->expand_collapse_cursor_row = gtk_tree_view_real_expand_collapse_cursor_row;
class->select_cursor_parent = gtk_tree_view_real_select_cursor_parent;
class->start_interactive_search = gtk_tree_view_start_interactive_search;
/* Properties */
g_object_class_override_property (o_class, PROP_HADJUSTMENT, "hadjustment");
g_object_class_override_property (o_class, PROP_VADJUSTMENT, "vadjustment");
g_object_class_override_property (o_class, PROP_HSCROLL_POLICY, "hscroll-policy");
g_object_class_override_property (o_class, PROP_VSCROLL_POLICY, "vscroll-policy");
tree_view_props[PROP_MODEL] =
g_param_spec_object ("model",
P_("TreeView Model"),
P_("The model for the tree view"),
GTK_TYPE_TREE_MODEL,
GTK_PARAM_READWRITE);
tree_view_props[PROP_HEADERS_VISIBLE] =
g_param_spec_boolean ("headers-visible",
P_("Headers Visible"),
P_("Show the column header buttons"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_view_props[PROP_HEADERS_CLICKABLE] =
g_param_spec_boolean ("headers-clickable",
P_("Headers Clickable"),
P_("Column headers respond to click events"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_view_props[PROP_EXPANDER_COLUMN] =
g_param_spec_object ("expander-column",
P_("Expander Column"),
P_("Set the column for the expander column"),
GTK_TYPE_TREE_VIEW_COLUMN,
GTK_PARAM_READWRITE);
tree_view_props[PROP_REORDERABLE] =
g_param_spec_boolean ("reorderable",
P_("Reorderable"),
P_("View is reorderable"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_view_props[PROP_ENABLE_SEARCH] =
g_param_spec_boolean ("enable-search",
P_("Enable Search"),
P_("View allows user to search through columns interactively"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_view_props[PROP_SEARCH_COLUMN] =
g_param_spec_int ("search-column",
P_("Search Column"),
P_("Model column to search through during interactive search"),
-1, G_MAXINT,
-1,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkTreeView:fixed-height-mode:
*
* Setting the ::fixed-height-mode property to %TRUE speeds up
* #GtkTreeView by assuming that all rows have the same height.
* Only enable this option if all rows are the same height.
* Please see gtk_tree_view_set_fixed_height_mode() for more
* information on this option.
*/
tree_view_props[PROP_FIXED_HEIGHT_MODE] =
g_param_spec_boolean ("fixed-height-mode",
P_("Fixed Height Mode"),
P_("Speeds up GtkTreeView by assuming that all rows have the same height"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkTreeView:hover-selection:
*
* Enables or disables the hover selection mode of @tree_view.
* Hover selection makes the selected row follow the pointer.
* Currently, this works only for the selection modes
* %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
*
* This mode is primarily intended for treeviews in popups, e.g.
* in #GtkComboBox or #GtkEntryCompletion.
*/
tree_view_props[PROP_HOVER_SELECTION] =
g_param_spec_boolean ("hover-selection",
P_("Hover Selection"),
P_("Whether the selection should follow the pointer"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkTreeView:hover-expand:
*
* Enables or disables the hover expansion mode of @tree_view.
* Hover expansion makes rows expand or collapse if the pointer moves
* over them.
*
* This mode is primarily intended for treeviews in popups, e.g.
* in #GtkComboBox or #GtkEntryCompletion.
*/
tree_view_props[PROP_HOVER_EXPAND] =
g_param_spec_boolean ("hover-expand",
P_("Hover Expand"),
P_("Whether rows should be expanded/collapsed when the pointer moves over them"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkTreeView:show-expanders:
*
* %TRUE if the view has expanders.
*/
tree_view_props[PROP_SHOW_EXPANDERS] =
g_param_spec_boolean ("show-expanders",
P_("Show Expanders"),
P_("View has expanders"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkTreeView:level-indentation:
*
* Extra indentation for each level.
*/
tree_view_props[PROP_LEVEL_INDENTATION] =
g_param_spec_int ("level-indentation",
P_("Level Indentation"),
P_("Extra indentation for each level"),
0, G_MAXINT,
0,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_view_props[PROP_RUBBER_BANDING] =
g_param_spec_boolean ("rubber-banding",
P_("Rubber Banding"),
P_("Whether to enable selection of multiple items by dragging the mouse pointer"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_view_props[PROP_ENABLE_GRID_LINES] =
g_param_spec_enum ("enable-grid-lines",
P_("Enable Grid Lines"),
P_("Whether grid lines should be drawn in the tree view"),
GTK_TYPE_TREE_VIEW_GRID_LINES,
GTK_TREE_VIEW_GRID_LINES_NONE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_view_props[PROP_ENABLE_TREE_LINES] =
g_param_spec_boolean ("enable-tree-lines",
P_("Enable Tree Lines"),
P_("Whether tree lines should be drawn in the tree view"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_view_props[PROP_TOOLTIP_COLUMN] =
g_param_spec_int ("tooltip-column",
P_("Tooltip Column"),
P_("The column in the model containing the tooltip texts for the rows"),
-1, G_MAXINT,
-1,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkTreeView:activate-on-single-click:
*
* The activate-on-single-click property specifies whether the "row-activated" signal
* will be emitted after a single click.
*/
tree_view_props[PROP_ACTIVATE_ON_SINGLE_CLICK] =
g_param_spec_boolean ("activate-on-single-click",
P_("Activate on Single Click"),
P_("Activate row on a single click"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
g_object_class_install_properties (o_class, LAST_PROP, tree_view_props);
/* Signals */
/**
* GtkTreeView::row-activated:
* @tree_view: the object on which the signal is emitted
* @path: the #GtkTreePath for the activated row
* @column: the #GtkTreeViewColumn in which the activation occurred
*
* The "row-activated" signal is emitted when the method
* gtk_tree_view_row_activated() is called, when the user double
* clicks a treeview row with the "activate-on-single-click"
* property set to %FALSE, or when the user single clicks a row when
* the "activate-on-single-click" property set to %TRUE. It is also
* emitted when a non-editable row is selected and one of the keys:
* Space, Shift+Space, Return or Enter is pressed.
*
* For selection handling refer to the
* [tree widget conceptual overview][TreeWidget]
* as well as #GtkTreeSelection.
*/
tree_view_signals[ROW_ACTIVATED] =
g_signal_new (I_("row-activated"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, row_activated),
NULL, NULL,
_gtk_marshal_VOID__BOXED_OBJECT,
G_TYPE_NONE, 2,
GTK_TYPE_TREE_PATH,
GTK_TYPE_TREE_VIEW_COLUMN);
g_signal_set_va_marshaller (tree_view_signals[ROW_ACTIVATED],
G_TYPE_FROM_CLASS (o_class),
_gtk_marshal_VOID__BOXED_OBJECTv);
/**
* GtkTreeView::test-expand-row:
* @tree_view: the object on which the signal is emitted
* @iter: the tree iter of the row to expand
* @path: a tree path that points to the row
*
* The given row is about to be expanded (show its children nodes). Use this
* signal if you need to control the expandability of individual rows.
*
* Returns: %FALSE to allow expansion, %TRUE to reject
*/
tree_view_signals[TEST_EXPAND_ROW] =
g_signal_new (I_("test-expand-row"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTreeViewClass, test_expand_row),
_gtk_boolean_handled_accumulator, NULL,
_gtk_marshal_BOOLEAN__BOXED_BOXED,
G_TYPE_BOOLEAN, 2,
GTK_TYPE_TREE_ITER,
GTK_TYPE_TREE_PATH);
g_signal_set_va_marshaller (tree_view_signals[TEST_EXPAND_ROW],
G_TYPE_FROM_CLASS (o_class),
_gtk_marshal_BOOLEAN__BOXED_BOXEDv);
/**
* GtkTreeView::test-collapse-row:
* @tree_view: the object on which the signal is emitted
* @iter: the tree iter of the row to collapse
* @path: a tree path that points to the row
*
* The given row is about to be collapsed (hide its children nodes). Use this
* signal if you need to control the collapsibility of individual rows.
*
* Returns: %FALSE to allow collapsing, %TRUE to reject
*/
tree_view_signals[TEST_COLLAPSE_ROW] =
g_signal_new (I_("test-collapse-row"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTreeViewClass, test_collapse_row),
_gtk_boolean_handled_accumulator, NULL,
_gtk_marshal_BOOLEAN__BOXED_BOXED,
G_TYPE_BOOLEAN, 2,
GTK_TYPE_TREE_ITER,
GTK_TYPE_TREE_PATH);
g_signal_set_va_marshaller (tree_view_signals[TEST_COLLAPSE_ROW],
G_TYPE_FROM_CLASS (o_class),
_gtk_marshal_BOOLEAN__BOXED_BOXEDv);
/**
* GtkTreeView::row-expanded:
* @tree_view: the object on which the signal is emitted
* @iter: the tree iter of the expanded row
* @path: a tree path that points to the row
*
* The given row has been expanded (child nodes are shown).
*/
tree_view_signals[ROW_EXPANDED] =
g_signal_new (I_("row-expanded"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTreeViewClass, row_expanded),
NULL, NULL,
_gtk_marshal_VOID__BOXED_BOXED,
G_TYPE_NONE, 2,
GTK_TYPE_TREE_ITER,
GTK_TYPE_TREE_PATH);
g_signal_set_va_marshaller (tree_view_signals[ROW_EXPANDED],
G_TYPE_FROM_CLASS (o_class),
_gtk_marshal_VOID__BOXED_BOXEDv);
/**
* GtkTreeView::row-collapsed:
* @tree_view: the object on which the signal is emitted
* @iter: the tree iter of the collapsed row
* @path: a tree path that points to the row
*
* The given row has been collapsed (child nodes are hidden).
*/
tree_view_signals[ROW_COLLAPSED] =
g_signal_new (I_("row-collapsed"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTreeViewClass, row_collapsed),
NULL, NULL,
_gtk_marshal_VOID__BOXED_BOXED,
G_TYPE_NONE, 2,
GTK_TYPE_TREE_ITER,
GTK_TYPE_TREE_PATH);
g_signal_set_va_marshaller (tree_view_signals[ROW_COLLAPSED],
G_TYPE_FROM_CLASS (o_class),
_gtk_marshal_VOID__BOXED_BOXEDv);
/**
* GtkTreeView::columns-changed:
* @tree_view: the object on which the signal is emitted
*
* The number of columns of the treeview has changed.
*/
tree_view_signals[COLUMNS_CHANGED] =
g_signal_new (I_("columns-changed"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTreeViewClass, columns_changed),
NULL, NULL,
NULL,
G_TYPE_NONE, 0);
/**
* GtkTreeView::cursor-changed:
* @tree_view: the object on which the signal is emitted
*
* The position of the cursor (focused cell) has changed.
*/
tree_view_signals[CURSOR_CHANGED] =
g_signal_new (I_("cursor-changed"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTreeViewClass, cursor_changed),
NULL, NULL,
NULL,
G_TYPE_NONE, 0);
/**
* GtkTreeView::move-cursor:
* @tree_view: the object on which the signal is emitted.
* @step: the granularity of the move, as a
* #GtkMovementStep. %GTK_MOVEMENT_LOGICAL_POSITIONS,
* %GTK_MOVEMENT_VISUAL_POSITIONS, %GTK_MOVEMENT_DISPLAY_LINES,
* %GTK_MOVEMENT_PAGES and %GTK_MOVEMENT_BUFFER_ENDS are
* supported. %GTK_MOVEMENT_LOGICAL_POSITIONS and
* %GTK_MOVEMENT_VISUAL_POSITIONS are treated identically.
* @direction: the direction to move: +1 to move forwards;
* -1 to move backwards. The resulting movement is
* undefined for all other values.
*
* The #GtkTreeView::move-cursor signal is a [keybinding
* signal][GtkBindingSignal] which gets emitted when the user
* presses one of the cursor keys.
*
* Applications should not connect to it, but may emit it with
* g_signal_emit_by_name() if they need to control the cursor
* programmatically. In contrast to gtk_tree_view_set_cursor() and
* gtk_tree_view_set_cursor_on_cell() when moving horizontally
* #GtkTreeView::move-cursor does not reset the current selection.
*
* Returns: %TRUE if @step is supported, %FALSE otherwise.
*/
tree_view_signals[MOVE_CURSOR] =
g_signal_new (I_("move-cursor"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, move_cursor),
NULL, NULL,
_gtk_marshal_BOOLEAN__ENUM_INT,
G_TYPE_BOOLEAN, 2,
GTK_TYPE_MOVEMENT_STEP,
G_TYPE_INT);
g_signal_set_va_marshaller (tree_view_signals[MOVE_CURSOR],
G_TYPE_FROM_CLASS (o_class),
_gtk_marshal_BOOLEAN__ENUM_INTv);
tree_view_signals[SELECT_ALL] =
g_signal_new (I_("select-all"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, select_all),
NULL, NULL,
_gtk_marshal_BOOLEAN__VOID,
G_TYPE_BOOLEAN, 0);
g_signal_set_va_marshaller (tree_view_signals[SELECT_ALL],
G_TYPE_FROM_CLASS (o_class),
_gtk_marshal_BOOLEAN__VOIDv);
tree_view_signals[UNSELECT_ALL] =
g_signal_new (I_("unselect-all"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, unselect_all),
NULL, NULL,
_gtk_marshal_BOOLEAN__VOID,
G_TYPE_BOOLEAN, 0);
g_signal_set_va_marshaller (tree_view_signals[UNSELECT_ALL],
G_TYPE_FROM_CLASS (o_class),
_gtk_marshal_BOOLEAN__VOIDv);
tree_view_signals[SELECT_CURSOR_ROW] =
g_signal_new (I_("select-cursor-row"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_row),
NULL, NULL,
_gtk_marshal_BOOLEAN__BOOLEAN,
G_TYPE_BOOLEAN, 1,
G_TYPE_BOOLEAN);
g_signal_set_va_marshaller (tree_view_signals[SELECT_CURSOR_ROW],
G_TYPE_FROM_CLASS (o_class),
_gtk_marshal_BOOLEAN__BOOLEANv);
tree_view_signals[TOGGLE_CURSOR_ROW] =
g_signal_new (I_("toggle-cursor-row"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, toggle_cursor_row),
NULL, NULL,
_gtk_marshal_BOOLEAN__VOID,
G_TYPE_BOOLEAN, 0);
g_signal_set_va_marshaller (tree_view_signals[TOGGLE_CURSOR_ROW],
G_TYPE_FROM_CLASS (o_class),
_gtk_marshal_BOOLEAN__VOIDv);
tree_view_signals[EXPAND_COLLAPSE_CURSOR_ROW] =
g_signal_new (I_("expand-collapse-cursor-row"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, expand_collapse_cursor_row),
NULL, NULL,
_gtk_marshal_BOOLEAN__BOOLEAN_BOOLEAN_BOOLEAN,
G_TYPE_BOOLEAN, 3,
G_TYPE_BOOLEAN,
G_TYPE_BOOLEAN,
G_TYPE_BOOLEAN);
g_signal_set_va_marshaller (tree_view_signals[EXPAND_COLLAPSE_CURSOR_ROW],
G_TYPE_FROM_CLASS (o_class),
_gtk_marshal_BOOLEAN__BOOLEAN_BOOLEAN_BOOLEANv);
tree_view_signals[SELECT_CURSOR_PARENT] =
g_signal_new (I_("select-cursor-parent"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_parent),
NULL, NULL,
_gtk_marshal_BOOLEAN__VOID,
G_TYPE_BOOLEAN, 0);
g_signal_set_va_marshaller (tree_view_signals[SELECT_CURSOR_PARENT],
G_TYPE_FROM_CLASS (o_class),
_gtk_marshal_BOOLEAN__VOIDv);
tree_view_signals[START_INTERACTIVE_SEARCH] =
g_signal_new (I_("start-interactive-search"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, start_interactive_search),
NULL, NULL,
_gtk_marshal_BOOLEAN__VOID,
G_TYPE_BOOLEAN, 0);
g_signal_set_va_marshaller (tree_view_signals[START_INTERACTIVE_SEARCH],
G_TYPE_FROM_CLASS (o_class),
_gtk_marshal_BOOLEAN__VOIDv);
/* Key bindings */
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Up, 0, TRUE,
GTK_MOVEMENT_DISPLAY_LINES, -1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Up, 0, TRUE,
GTK_MOVEMENT_DISPLAY_LINES, -1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Down, 0, TRUE,
GTK_MOVEMENT_DISPLAY_LINES, 1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Down, 0, TRUE,
GTK_MOVEMENT_DISPLAY_LINES, 1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_p, GDK_CONTROL_MASK, FALSE,
GTK_MOVEMENT_DISPLAY_LINES, -1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_n, GDK_CONTROL_MASK, FALSE,
GTK_MOVEMENT_DISPLAY_LINES, 1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Home, 0, TRUE,
GTK_MOVEMENT_BUFFER_ENDS, -1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Home, 0, TRUE,
GTK_MOVEMENT_BUFFER_ENDS, -1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_End, 0, TRUE,
GTK_MOVEMENT_BUFFER_ENDS, 1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_End, 0, TRUE,
GTK_MOVEMENT_BUFFER_ENDS, 1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Page_Up, 0, TRUE,
GTK_MOVEMENT_PAGES, -1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Page_Up, 0, TRUE,
GTK_MOVEMENT_PAGES, -1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Page_Down, 0, TRUE,
GTK_MOVEMENT_PAGES, 1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Page_Down, 0, TRUE,
GTK_MOVEMENT_PAGES, 1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right, 0, "move-cursor", 2,
G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
G_TYPE_INT, 1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left, 0, "move-cursor", 2,
G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
G_TYPE_INT, -1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right, 0, "move-cursor", 2,
G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
G_TYPE_INT, 1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left, 0, "move-cursor", 2,
G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
G_TYPE_INT, -1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right, GDK_CONTROL_MASK,
"move-cursor", 2,
G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
G_TYPE_INT, 1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left, GDK_CONTROL_MASK,
"move-cursor", 2,
G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
G_TYPE_INT, -1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right, GDK_CONTROL_MASK,
"move-cursor", 2,
G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
G_TYPE_INT, 1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left, GDK_CONTROL_MASK,
"move-cursor", 2,
G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
G_TYPE_INT, -1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_space, GDK_CONTROL_MASK, "toggle-cursor-row", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Space, GDK_CONTROL_MASK, "toggle-cursor-row", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_a, GDK_CONTROL_MASK, "select-all", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_slash, GDK_CONTROL_MASK, "select-all", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_A, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "unselect-all", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_backslash, GDK_CONTROL_MASK, "unselect-all", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_space, GDK_SHIFT_MASK, "select-cursor-row", 1,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Space, GDK_SHIFT_MASK, "select-cursor-row", 1,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_space, 0, "select-cursor-row", 1,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Space, 0, "select-cursor-row", 1,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Return, 0, "select-cursor-row", 1,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_ISO_Enter, 0, "select-cursor-row", 1,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Enter, 0, "select-cursor-row", 1,
G_TYPE_BOOLEAN, TRUE);
/* expand and collapse rows */
gtk_binding_entry_add_signal (binding_set, GDK_KEY_plus, 0, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, FALSE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_asterisk, 0,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Multiply, 0,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_slash, 0,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, FALSE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Divide, 0,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, FALSE);
/* Not doable on US keyboards */
gtk_binding_entry_add_signal (binding_set, GDK_KEY_plus, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Add, 0, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, FALSE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Add, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Add, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right, GDK_SHIFT_MASK,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right, GDK_SHIFT_MASK,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right,
GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right,
GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_minus, 0, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, FALSE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_minus, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Subtract, 0, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, FALSE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Subtract, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left, GDK_SHIFT_MASK,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left, GDK_SHIFT_MASK,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left,
GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left,
GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, 0, "select-cursor-parent", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_CONTROL_MASK, "select-cursor-parent", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_f, GDK_CONTROL_MASK, "start-interactive-search", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_F, GDK_CONTROL_MASK, "start-interactive-search", 0);
gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_TREE_VIEW_ACCESSIBLE);
gtk_widget_class_set_css_name (widget_class, I_("treeview"));
}
static void
gtk_tree_view_init (GtkTreeView *tree_view)
{
GtkTreeViewPrivate *priv;
GtkCssNode *widget_node;
GtkGesture *gesture;
GtkEventController *controller;
priv = tree_view->priv = gtk_tree_view_get_instance_private (tree_view);
gtk_widget_set_can_focus (GTK_WIDGET (tree_view), TRUE);
gtk_widget_set_overflow (GTK_WIDGET (tree_view), GTK_OVERFLOW_HIDDEN);
priv->show_expanders = TRUE;
priv->draw_keyfocus = TRUE;
priv->headers_visible = TRUE;
priv->activate_on_single_click = FALSE;
/* We need some padding */
priv->dy = 0;
priv->cursor_offset = 0;
priv->n_columns = 0;
priv->header_height = 1;
priv->x_drag = 0;
priv->drag_pos = -1;
priv->header_has_focus = FALSE;
priv->press_start_x = -1;
priv->press_start_y = -1;
priv->reorderable = FALSE;
priv->presize_handler_tick_cb = 0;
priv->scroll_sync_timer = 0;
priv->fixed_height = -1;
priv->fixed_height_mode = FALSE;
priv->fixed_height_check = 0;
priv->selection = _gtk_tree_selection_new_with_tree_view (tree_view);
priv->enable_search = TRUE;
priv->search_column = -1;
priv->search_position_func = gtk_tree_view_search_position_func;
priv->search_equal_func = gtk_tree_view_search_equal_func;
priv->search_custom_entry_set = FALSE;
priv->typeselect_flush_timeout = 0;
priv->width = 0;
priv->expander_size = -1;
priv->hover_selection = FALSE;
priv->hover_expand = FALSE;
priv->level_indentation = 0;
priv->rubber_banding_enable = FALSE;
priv->grid_lines = GTK_TREE_VIEW_GRID_LINES_NONE;
priv->tree_lines_enabled = FALSE;
priv->tooltip_column = -1;
priv->event_last_x = -10000;
priv->event_last_y = -10000;
gtk_tree_view_do_set_vadjustment (tree_view, NULL);
gtk_tree_view_do_set_hadjustment (tree_view, NULL);
gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (tree_view)),
GTK_STYLE_CLASS_VIEW);
widget_node = gtk_widget_get_css_node (GTK_WIDGET (tree_view));
priv->header_node = gtk_css_node_new ();
gtk_css_node_set_name (priv->header_node, I_("header"));
gtk_css_node_set_parent (priv->header_node, widget_node);
gtk_css_node_set_state (priv->header_node, gtk_css_node_get_state (widget_node));
g_object_unref (priv->header_node);
priv->click_gesture = gtk_gesture_click_new ();
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (priv->click_gesture), 0);
g_signal_connect (priv->click_gesture, "pressed",
G_CALLBACK (gtk_tree_view_click_gesture_pressed), tree_view);
g_signal_connect (priv->click_gesture, "released",
G_CALLBACK (gtk_tree_view_click_gesture_released), tree_view);
gtk_widget_add_controller (GTK_WIDGET (tree_view), GTK_EVENT_CONTROLLER (priv->click_gesture));
gesture = gtk_gesture_click_new ();
g_signal_connect (gesture, "pressed",
G_CALLBACK (gtk_tree_view_column_click_gesture_pressed), tree_view);
gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
GTK_PHASE_CAPTURE);
gtk_widget_add_controller (GTK_WIDGET (tree_view), GTK_EVENT_CONTROLLER (gesture));
priv->drag_gesture = gtk_gesture_drag_new ();
g_signal_connect (priv->drag_gesture, "drag-begin",
G_CALLBACK (gtk_tree_view_drag_gesture_begin), tree_view);
g_signal_connect (priv->drag_gesture, "drag-update",
G_CALLBACK (gtk_tree_view_drag_gesture_update), tree_view);
g_signal_connect (priv->drag_gesture, "drag-end",
G_CALLBACK (gtk_tree_view_drag_gesture_end), tree_view);
gtk_widget_add_controller (GTK_WIDGET (tree_view), GTK_EVENT_CONTROLLER (priv->drag_gesture));
priv->column_drag_gesture = gtk_gesture_drag_new ();
g_signal_connect (priv->column_drag_gesture, "drag-begin",
G_CALLBACK (gtk_tree_view_column_drag_gesture_begin), tree_view);
g_signal_connect (priv->column_drag_gesture, "drag-update",
G_CALLBACK (gtk_tree_view_column_drag_gesture_update), tree_view);
g_signal_connect (priv->column_drag_gesture, "drag-end",
G_CALLBACK (gtk_tree_view_column_drag_gesture_end), tree_view);
gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (priv->column_drag_gesture),
GTK_PHASE_CAPTURE);
gtk_widget_add_controller (GTK_WIDGET (tree_view), GTK_EVENT_CONTROLLER (priv->column_drag_gesture));
controller = gtk_event_controller_motion_new ();
g_signal_connect (controller, "enter",
G_CALLBACK (gtk_tree_view_motion_controller_enter), tree_view);
g_signal_connect (controller, "leave",
G_CALLBACK (gtk_tree_view_motion_controller_leave), tree_view);
g_signal_connect (controller, "motion",
G_CALLBACK (gtk_tree_view_motion_controller_motion), tree_view);
gtk_widget_add_controller (GTK_WIDGET (tree_view), controller);
controller = gtk_event_controller_key_new ();
g_signal_connect (controller, "key-pressed",
G_CALLBACK (gtk_tree_view_key_controller_key_pressed), tree_view);
g_signal_connect (controller, "key-released",
G_CALLBACK (gtk_tree_view_key_controller_key_released), tree_view);
g_signal_connect (controller, "focus-out",
G_CALLBACK (gtk_tree_view_key_controller_focus_out), tree_view);
gtk_widget_add_controller (GTK_WIDGET (tree_view), controller);
}
/* GObject Methods
*/
static void
gtk_tree_view_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkTreeView *tree_view;
tree_view = GTK_TREE_VIEW (object);
switch (prop_id)
{
case PROP_MODEL:
gtk_tree_view_set_model (tree_view, g_value_get_object (value));
break;
case PROP_HADJUSTMENT:
gtk_tree_view_do_set_hadjustment (tree_view, g_value_get_object (value));
break;
case PROP_VADJUSTMENT:
gtk_tree_view_do_set_vadjustment (tree_view, g_value_get_object (value));
break;
case PROP_HSCROLL_POLICY:
if (tree_view->priv->hscroll_policy != g_value_get_enum (value))
{
tree_view->priv->hscroll_policy = g_value_get_enum (value);
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
g_object_notify_by_pspec (object, pspec);
}
break;
case PROP_VSCROLL_POLICY:
if (tree_view->priv->vscroll_policy != g_value_get_enum (value))
{
tree_view->priv->vscroll_policy = g_value_get_enum (value);
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
g_object_notify_by_pspec (object, pspec);
}
break;
case PROP_HEADERS_VISIBLE:
gtk_tree_view_set_headers_visible (tree_view, g_value_get_boolean (value));
break;
case PROP_HEADERS_CLICKABLE:
gtk_tree_view_set_headers_clickable (tree_view, g_value_get_boolean (value));
break;
case PROP_EXPANDER_COLUMN:
gtk_tree_view_set_expander_column (tree_view, g_value_get_object (value));
break;
case PROP_REORDERABLE:
gtk_tree_view_set_reorderable (tree_view, g_value_get_boolean (value));
break;
case PROP_ENABLE_SEARCH:
gtk_tree_view_set_enable_search (tree_view, g_value_get_boolean (value));
break;
case PROP_SEARCH_COLUMN:
gtk_tree_view_set_search_column (tree_view, g_value_get_int (value));
break;
case PROP_FIXED_HEIGHT_MODE:
gtk_tree_view_set_fixed_height_mode (tree_view, g_value_get_boolean (value));
break;
case PROP_HOVER_SELECTION:
if (tree_view->priv->hover_selection != g_value_get_boolean (value))
{
tree_view->priv->hover_selection = g_value_get_boolean (value);
g_object_notify_by_pspec (object, pspec);
}
break;
case PROP_HOVER_EXPAND:
if (tree_view->priv->hover_expand != g_value_get_boolean (value))
{
tree_view->priv->hover_expand = g_value_get_boolean (value);
g_object_notify_by_pspec (object, pspec);
}
break;
case PROP_SHOW_EXPANDERS:
gtk_tree_view_set_show_expanders (tree_view, g_value_get_boolean (value));
break;
case PROP_LEVEL_INDENTATION:
if (tree_view->priv->level_indentation != g_value_get_int (value))
{
tree_view->priv->level_indentation = g_value_get_int (value);
g_object_notify_by_pspec (object, pspec);
}
break;
case PROP_RUBBER_BANDING:
if (tree_view->priv->rubber_banding_enable != g_value_get_boolean (value))
{
tree_view->priv->rubber_banding_enable = g_value_get_boolean (value);
g_object_notify_by_pspec (object, pspec);
}
break;
case PROP_ENABLE_GRID_LINES:
gtk_tree_view_set_grid_lines (tree_view, g_value_get_enum (value));
break;
case PROP_ENABLE_TREE_LINES:
gtk_tree_view_set_enable_tree_lines (tree_view, g_value_get_boolean (value));
break;
case PROP_TOOLTIP_COLUMN:
gtk_tree_view_set_tooltip_column (tree_view, g_value_get_int (value));
break;
case PROP_ACTIVATE_ON_SINGLE_CLICK:
gtk_tree_view_set_activate_on_single_click (tree_view, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_tree_view_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkTreeView *tree_view;
tree_view = GTK_TREE_VIEW (object);
switch (prop_id)
{
case PROP_MODEL:
g_value_set_object (value, tree_view->priv->model);
break;
case PROP_HADJUSTMENT:
g_value_set_object (value, tree_view->priv->hadjustment);
break;
case PROP_VADJUSTMENT:
g_value_set_object (value, tree_view->priv->vadjustment);
break;
case PROP_HSCROLL_POLICY:
g_value_set_enum (value, tree_view->priv->hscroll_policy);
break;
case PROP_VSCROLL_POLICY:
g_value_set_enum (value, tree_view->priv->vscroll_policy);
break;
case PROP_HEADERS_VISIBLE:
g_value_set_boolean (value, gtk_tree_view_get_headers_visible (tree_view));
break;
case PROP_HEADERS_CLICKABLE:
g_value_set_boolean (value, gtk_tree_view_get_headers_clickable (tree_view));
break;
case PROP_EXPANDER_COLUMN:
g_value_set_object (value, tree_view->priv->expander_column);
break;
case PROP_REORDERABLE:
g_value_set_boolean (value, tree_view->priv->reorderable);
break;
case PROP_ENABLE_SEARCH:
g_value_set_boolean (value, tree_view->priv->enable_search);
break;
case PROP_SEARCH_COLUMN:
g_value_set_int (value, tree_view->priv->search_column);
break;
case PROP_FIXED_HEIGHT_MODE:
g_value_set_boolean (value, tree_view->priv->fixed_height_mode);
break;
case PROP_HOVER_SELECTION:
g_value_set_boolean (value, tree_view->priv->hover_selection);
break;
case PROP_HOVER_EXPAND:
g_value_set_boolean (value, tree_view->priv->hover_expand);
break;
case PROP_SHOW_EXPANDERS:
g_value_set_boolean (value, tree_view->priv->show_expanders);
break;
case PROP_LEVEL_INDENTATION:
g_value_set_int (value, tree_view->priv->level_indentation);
break;
case PROP_RUBBER_BANDING:
g_value_set_boolean (value, tree_view->priv->rubber_banding_enable);
break;
case PROP_ENABLE_GRID_LINES:
g_value_set_enum (value, tree_view->priv->grid_lines);
break;
case PROP_ENABLE_TREE_LINES:
g_value_set_boolean (value, tree_view->priv->tree_lines_enabled);
break;
case PROP_TOOLTIP_COLUMN:
g_value_set_int (value, tree_view->priv->tooltip_column);
break;
case PROP_ACTIVATE_ON_SINGLE_CLICK:
g_value_set_boolean (value, tree_view->priv->activate_on_single_click);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_tree_view_finalize (GObject *object)
{
G_OBJECT_CLASS (gtk_tree_view_parent_class)->finalize (object);
}
static GtkBuildableIface *parent_buildable_iface;
static void
gtk_tree_view_buildable_init (GtkBuildableIface *iface)
{
parent_buildable_iface = g_type_interface_peek_parent (iface);
iface->add_child = gtk_tree_view_buildable_add_child;
iface->get_internal_child = gtk_tree_view_buildable_get_internal_child;
}
static void
gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
GtkBuilder *builder,
GObject *child,
const gchar *type)
{
if (GTK_IS_TREE_VIEW_COLUMN (child))
gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), GTK_TREE_VIEW_COLUMN (child));
else
parent_buildable_iface->add_child (tree_view, builder, child, type);
}
static GObject *
gtk_tree_view_buildable_get_internal_child (GtkBuildable *buildable,
GtkBuilder *builder,
const gchar *childname)
{
if (strcmp (childname, "selection") == 0)
return G_OBJECT (GTK_TREE_VIEW (buildable)->priv->selection);
return parent_buildable_iface->get_internal_child (buildable,
builder,
childname);
}
/* GtkWidget Methods
*/
static void
gtk_tree_view_free_rbtree (GtkTreeView *tree_view)
{
gtk_tree_rbtree_free (tree_view->priv->tree);
tree_view->priv->tree = NULL;
tree_view->priv->button_pressed_node = NULL;
tree_view->priv->button_pressed_tree = NULL;
tree_view->priv->prelight_tree = NULL;
tree_view->priv->prelight_node = NULL;
}
static void
gtk_tree_view_destroy_search_window (GtkTreeView *tree_view)
{
gtk_widget_destroy (tree_view->priv->search_window);
tree_view->priv->search_window = NULL;
tree_view->priv->search_entry = NULL;
tree_view->priv->search_entry_changed_id = 0;
}
static void
gtk_tree_view_destroy (GtkWidget *widget)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GList *list;
gtk_tree_view_stop_editing (tree_view, TRUE);
gtk_tree_view_stop_rubber_band (tree_view);
if (tree_view->priv->columns != NULL)
{
list = tree_view->priv->columns;
while (list)
{
GtkTreeViewColumn *column;
column = GTK_TREE_VIEW_COLUMN (list->data);
list = list->next;
gtk_tree_view_remove_column (tree_view, column);
}
tree_view->priv->columns = NULL;
}
if (tree_view->priv->tree != NULL)
{
gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
gtk_tree_view_free_rbtree (tree_view);
}
if (tree_view->priv->selection != NULL)
{
_gtk_tree_selection_set_tree_view (tree_view->priv->selection, NULL);
g_object_unref (tree_view->priv->selection);
tree_view->priv->selection = NULL;
}
if (tree_view->priv->scroll_to_path != NULL)
{
gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
tree_view->priv->scroll_to_path = NULL;
}
if (tree_view->priv->drag_dest_row != NULL)
{
gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
tree_view->priv->drag_dest_row = NULL;
}
if (tree_view->priv->top_row != NULL)
{
gtk_tree_row_reference_free (tree_view->priv->top_row);
tree_view->priv->top_row = NULL;
}
if (tree_view->priv->column_drop_func_data &&
tree_view->priv->column_drop_func_data_destroy)
{
tree_view->priv->column_drop_func_data_destroy (tree_view->priv->column_drop_func_data);
tree_view->priv->column_drop_func_data = NULL;
}
gtk_tree_row_reference_free (tree_view->priv->anchor);
tree_view->priv->anchor = NULL;
/* destroy interactive search dialog */
if (tree_view->priv->search_window)
{
gtk_tree_view_destroy_search_window (tree_view);
if (tree_view->priv->typeselect_flush_timeout)
{
g_source_remove (tree_view->priv->typeselect_flush_timeout);
tree_view->priv->typeselect_flush_timeout = 0;
}
}
if (tree_view->priv->search_custom_entry_set)
{
GtkEventController *controller;
g_signal_handlers_disconnect_by_func (tree_view->priv->search_entry,
G_CALLBACK (gtk_tree_view_search_init),
tree_view);
if (GTK_IS_ENTRY (tree_view->priv->search_entry))
controller = gtk_entry_get_key_controller (GTK_ENTRY (tree_view->priv->search_entry));
else
controller = gtk_search_entry_get_key_controller (GTK_SEARCH_ENTRY (tree_view->priv->search_entry));
g_signal_handlers_disconnect_by_func (controller,
G_CALLBACK (gtk_tree_view_search_key_pressed),
tree_view);
g_object_unref (tree_view->priv->search_entry);
tree_view->priv->search_entry = NULL;
tree_view->priv->search_custom_entry_set = FALSE;
}
if (tree_view->priv->search_destroy && tree_view->priv->search_user_data)
{
tree_view->priv->search_destroy (tree_view->priv->search_user_data);
tree_view->priv->search_user_data = NULL;
}
if (tree_view->priv->search_position_destroy && tree_view->priv->search_position_user_data)
{
tree_view->priv->search_position_destroy (tree_view->priv->search_position_user_data);
tree_view->priv->search_position_user_data = NULL;
}
if (tree_view->priv->row_separator_destroy && tree_view->priv->row_separator_data)
{
tree_view->priv->row_separator_destroy (tree_view->priv->row_separator_data);
tree_view->priv->row_separator_data = NULL;
}
gtk_tree_view_set_model (tree_view, NULL);
if (tree_view->priv->hadjustment)
{
g_object_unref (tree_view->priv->hadjustment);
tree_view->priv->hadjustment = NULL;
}
if (tree_view->priv->vadjustment)
{
g_object_unref (tree_view->priv->vadjustment);
tree_view->priv->vadjustment = NULL;
}
GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->destroy (widget);
}
/* GtkWidget::map helper */
static void
gtk_tree_view_map_buttons (GtkTreeView *tree_view)
{
GList *list;
g_return_if_fail (gtk_widget_get_mapped (GTK_WIDGET (tree_view)));
if (tree_view->priv->headers_visible)
{
GtkTreeViewColumn *column;
GtkWidget *button;
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
button = gtk_tree_view_column_get_button (column);
if (gtk_tree_view_column_get_visible (column) && button)
gtk_widget_show (button);
if (gtk_widget_get_visible (button) &&
!gtk_widget_get_mapped (button))
gtk_widget_map (button);
}
}
}
static void
gtk_tree_view_map (GtkWidget *widget)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GList *tmp_list;
GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->map (widget);
tmp_list = tree_view->priv->children;
while (tmp_list)
{
GtkTreeViewChild *child = tmp_list->data;
tmp_list = tmp_list->next;
if (gtk_widget_get_visible (child->widget))
{
if (!gtk_widget_get_mapped (child->widget))
gtk_widget_map (child->widget);
}
}
gtk_tree_view_map_buttons (tree_view);
}
static void
gtk_tree_view_realize (GtkWidget *widget)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GList *tmp_list;
GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->realize (widget);
for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
_gtk_tree_view_column_realize_button (GTK_TREE_VIEW_COLUMN (tmp_list->data));
/* Need to call those here, since they create GCs */
gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
install_presize_handler (tree_view);
}
static void
gtk_tree_view_unrealize (GtkWidget *widget)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GtkTreeViewPrivate *priv = tree_view->priv;
if (priv->scroll_timeout != 0)
{
g_source_remove (priv->scroll_timeout);
priv->scroll_timeout = 0;
}
if (priv->auto_expand_timeout != 0)
{
g_source_remove (priv->auto_expand_timeout);
priv->auto_expand_timeout = 0;
}
if (priv->open_dest_timeout != 0)
{
g_source_remove (priv->open_dest_timeout);
priv->open_dest_timeout = 0;
}
if (priv->presize_handler_tick_cb != 0)
{
gtk_widget_remove_tick_callback (widget, priv->presize_handler_tick_cb);
priv->presize_handler_tick_cb = 0;
}
if (priv->validate_rows_timer != 0)
{
g_source_remove (priv->validate_rows_timer);
priv->validate_rows_timer = 0;
}
if (priv->scroll_sync_timer != 0)
{
g_source_remove (priv->scroll_sync_timer);
priv->scroll_sync_timer = 0;
}
if (priv->typeselect_flush_timeout)
{
g_source_remove (priv->typeselect_flush_timeout);
priv->typeselect_flush_timeout = 0;
}
GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->unrealize (widget);
}
/* GtkWidget::get_preferred_height helper */
static void
gtk_tree_view_update_height (GtkTreeView *tree_view)
{
GList *list;
tree_view->priv->header_height = 0;
for (list = tree_view->priv->columns; list; list = list->next)
{
GtkRequisition requisition;
GtkTreeViewColumn *column = list->data;
GtkWidget *button = gtk_tree_view_column_get_button (column);
if (button == NULL)
continue;
gtk_widget_get_preferred_size (button, &requisition, NULL);
tree_view->priv->header_height = MAX (tree_view->priv->header_height, requisition.height);
}
}
static gint
gtk_tree_view_get_height (GtkTreeView *tree_view)
{
if (tree_view->priv->tree == NULL)
return 0;
else
return tree_view->priv->tree->root->offset;
}
static void
gtk_tree_view_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
{
GList *list;
GtkTreeViewColumn *column;
gint width = 0;
/* we validate some rows initially just to make sure we have some size.
* In practice, with a lot of static lists, this should get a good width.
*/
do_validate_rows (tree_view, FALSE);
/* keep this in sync with size_allocate below */
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (!gtk_tree_view_column_get_visible (column) || column == tree_view->priv->drag_column)
continue;
width += _gtk_tree_view_column_request_width (column);
}
*minimum = *natural = width;
}
else /* VERTICAL */
{
int height;
gtk_tree_view_update_height (tree_view);
height = gtk_tree_view_get_height (tree_view) + gtk_tree_view_get_effective_header_height (tree_view);
*minimum = *natural = height;
}
}
static int
gtk_tree_view_calculate_width_before_expander (GtkTreeView *tree_view)
{
int width = 0;
GList *list;
gboolean rtl;
rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list->data != tree_view->priv->expander_column;
list = (rtl ? list->prev : list->next))
{
GtkTreeViewColumn *column = list->data;
width += gtk_tree_view_column_get_width (column);
}
return width;
}
/* GtkWidget::size_allocate helper */
static void
gtk_tree_view_size_allocate_columns (GtkWidget *widget)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GtkTreeViewPrivate *priv = gtk_tree_view_get_instance_private (tree_view);
const int x_offset = - gtk_adjustment_get_value (priv->hadjustment);
GList *list, *first_column, *last_column;
GtkTreeViewColumn *column;
gint widget_width, width = 0;
gint extra, extra_per_column;
gint full_requested_width = 0;
gint number_of_expand_columns = 0;
gboolean rtl;
for (last_column = g_list_last (tree_view->priv->columns);
last_column &&
!(gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (last_column->data)));
last_column = last_column->prev)
;
if (last_column == NULL)
return;
for (first_column = g_list_first (tree_view->priv->columns);
first_column &&
!(gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (first_column->data)));
first_column = first_column->next)
;
if (first_column == NULL)
return;
rtl = (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
/* find out how many extra space and expandable columns we have */
for (list = tree_view->priv->columns; list != last_column->next; list = list->next)
{
column = (GtkTreeViewColumn *)list->data;
if (!gtk_tree_view_column_get_visible (column) || column == tree_view->priv->drag_column)
continue;
full_requested_width += _gtk_tree_view_column_request_width (column);
if (gtk_tree_view_column_get_expand (column))
number_of_expand_columns++;
}
widget_width = gtk_widget_get_width (widget);
extra = MAX (widget_width - full_requested_width, 0);
if (number_of_expand_columns > 0)
extra_per_column = extra/number_of_expand_columns;
else
extra_per_column = 0;
for (list = first_column;
list != last_column->next;
list = list->next)
{
gint column_width;
column = list->data;
column_width = _gtk_tree_view_column_request_width (column);
if (!gtk_tree_view_column_get_visible (column))
continue;
if (column == tree_view->priv->drag_column)
goto next;
if (gtk_tree_view_column_get_expand (column))
{
if (number_of_expand_columns == 1)
{
/* We add the remander to the last column as
* */
column_width += extra;
}
else
{
column_width += extra_per_column;
extra -= extra_per_column;
number_of_expand_columns --;
}
}
else if (number_of_expand_columns == 0 &&
list == last_column)
{
column_width += extra;
}
if (rtl)
_gtk_tree_view_column_allocate (column, widget_width - width - column_width + x_offset,
column_width, tree_view->priv->header_height);
else
_gtk_tree_view_column_allocate (column, width + x_offset,
column_width, tree_view->priv->header_height);
next:
width += column_width;
}
/* We change the width here. The user might have been resizing columns,
* which changes the total width of the tree view. This is of
* importance for getting the horizontal scroll bar right.
*/
tree_view->priv->width = width;
}
/* GtkWidget::size_allocate helper */
static void
gtk_tree_view_size_allocate_drag_column (GtkWidget *widget)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GtkAllocation allocation;
int baseline;
GtkWidget *button;
if (tree_view->priv->drag_column == NULL)
return;
button = gtk_tree_view_column_get_button (tree_view->priv->drag_column);
allocation.x = tree_view->priv->drag_column_x;
allocation.y = tree_view->priv->drag_column_y;
allocation.width = gtk_widget_get_allocated_width (button);
allocation.height = gtk_widget_get_allocated_height (button);
baseline = gtk_widget_get_allocated_baseline (button);
gtk_widget_size_allocate (button, &allocation, baseline);
}
static void
gtk_tree_view_size_allocate (GtkWidget *widget,
int width,
int height,
int baseline)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GList *tmp_list;
double page_size;
/* We size-allocate the columns first because the width of the
* tree view (used in updating the adjustments below) might change.
*/
gtk_tree_view_size_allocate_columns (widget);
gtk_tree_view_size_allocate_drag_column (widget);
page_size = gtk_adjustment_get_page_size (tree_view->priv->vadjustment);
gtk_adjustment_configure (tree_view->priv->hadjustment,
gtk_adjustment_get_value (tree_view->priv->hadjustment) +
(_gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL ? width - page_size : 0),
0,
MAX (width, tree_view->priv->width),
width * 0.1,
width * 0.9,
width);
page_size = height - gtk_tree_view_get_effective_header_height (tree_view);
gtk_adjustment_configure (tree_view->priv->vadjustment,
gtk_adjustment_get_value (tree_view->priv->vadjustment),
0,
MAX (page_size, gtk_tree_view_get_height (tree_view)),
page_size * 0.1,
page_size * 0.9,
page_size);
/* now the adjustments and window sizes are in sync, we can sync toprow/dy again */
if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
gtk_tree_view_top_row_to_dy (tree_view);
else
gtk_tree_view_dy_to_top_row (tree_view);
if (gtk_widget_get_realized (widget))
{
if (tree_view->priv->tree == NULL)
invalidate_empty_focus (tree_view);
if (tree_view->priv->expander_column)
{
/* Might seem awkward, but is the best heuristic I could come up
* with. Only if the width of the columns before the expander
* changes, we will update the prelight status. It is this
* width that makes the expander move vertically. Always updating
* prelight status causes trouble with hover selections.
*/
gint width_before_expander;
width_before_expander = gtk_tree_view_calculate_width_before_expander (tree_view);
if (tree_view->priv->prev_width_before_expander
!= width_before_expander)
update_prelight (tree_view,
tree_view->priv->event_last_x,
tree_view->priv->event_last_y);
tree_view->priv->prev_width_before_expander = width_before_expander;
}
}
for (tmp_list = tree_view->priv->children; tmp_list; tmp_list = tmp_list->next)
{
GtkTreeViewChild *child = tmp_list->data;
GtkTreePath *path;
GdkRectangle child_rect;
int min_x, max_x, min_y, max_y;
int size;
GtkTextDirection direction;
direction = _gtk_widget_get_direction (child->widget);
path = _gtk_tree_path_new_from_rbtree (child->tree, child->node);
gtk_tree_view_get_cell_area (tree_view, path, child->column, &child_rect);
child_rect.x += child->border.left;
child_rect.y += child->border.top;
child_rect.width -= child->border.left + child->border.right;
child_rect.height -= child->border.top + child->border.bottom;
gtk_widget_measure (GTK_WIDGET (child->widget), GTK_ORIENTATION_HORIZONTAL, -1,
&size, NULL, NULL, NULL);
if (size > child_rect.width)
{
/* Enlarge the child, extending it to the left (RTL) */
if (direction == GTK_TEXT_DIR_RTL)
child_rect.x -= (size - child_rect.width);
/* or to the right (LTR) */
else
child_rect.x += 0;
child_rect.width = size;
}
gtk_widget_measure (GTK_WIDGET (child->widget), GTK_ORIENTATION_VERTICAL,
child_rect.width,
&size, NULL,
NULL, NULL);
if (size > child_rect.height)
{
/* Enlarge the child, extending in both directions equally */
child_rect.y -= (size - child_rect.height) / 2;
child_rect.height = size;
}
/* push the rect back in the visible area if needed,
* preferring the top left corner (for RTL)
* or top right corner (for LTR)
*/
min_x = gtk_adjustment_get_value (tree_view->priv->hadjustment);
max_x = min_x + width - child_rect.width;
min_y = 0;
max_y = min_y + height - gtk_tree_view_get_effective_header_height (tree_view) - child_rect.height;
if (direction == GTK_TEXT_DIR_LTR)
/* Ensure that child's right edge is not sticking to the right
* (if (child_rect.x > max_x) child_rect.x = max_x),
* then ensure that child's left edge is visible and is not sticking to the left
* (if (child_rect.x < min_x) child_rect.x = min_x).
*/
child_rect.x = MAX (min_x, MIN (max_x, child_rect.x));
else
/* Ensure that child's left edge is not sticking to the left
* (if (child_rect.x < min_x) child_rect.x = min_x),
* then ensure that child's right edge is visible and is not sticking to the right
* (if (child_rect.x > max_x) child_rect.x = max_x).
*/
child_rect.x = MIN (max_x, MAX (min_x, child_rect.x));
child_rect.y = MAX (min_y, MIN (max_y, child_rect.y));
gtk_tree_path_free (path);
gtk_widget_size_allocate (child->widget, &child_rect, -1);
}
}
/* Grabs the focus and unsets the GTK_TREE_VIEW_DRAW_KEYFOCUS flag */
static void
grab_focus_and_unset_draw_keyfocus (GtkTreeView *tree_view)
{
GtkWidget *widget = GTK_WIDGET (tree_view);
if (gtk_widget_get_can_focus (widget) &&
!gtk_widget_has_focus (widget) &&
!_gtk_widget_get_shadowed (widget))
gtk_widget_grab_focus (widget);
tree_view->priv->draw_keyfocus = 0;
}
static inline gboolean
row_is_separator (GtkTreeView *tree_view,
GtkTreeIter *iter,
GtkTreePath *path)
{
gboolean is_separator = FALSE;
if (tree_view->priv->row_separator_func)
{
GtkTreeIter tmpiter;
if (iter)
tmpiter = *iter;
else
{
if (!gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, path))
return FALSE;
}
is_separator = tree_view->priv->row_separator_func (tree_view->priv->model,
&tmpiter,
tree_view->priv->row_separator_data);
}
return is_separator;
}
static int
gtk_tree_view_get_expander_size (GtkTreeView *tree_view)
{
GtkTreeViewPrivate *priv = gtk_tree_view_get_instance_private (tree_view);
GtkStyleContext *context;
GtkCssStyle *style;
int min_width;
int min_height;
int expander_size;
if (priv->expander_size != -1)
return priv->expander_size;
context = gtk_widget_get_style_context (GTK_WIDGET (tree_view));
gtk_style_context_save (context);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_EXPANDER);
style = gtk_style_context_lookup_style (context);
min_width = _gtk_css_number_value_get
(gtk_css_style_get_value (style, GTK_CSS_PROPERTY_MIN_WIDTH), 100);
min_height = _gtk_css_number_value_get
(gtk_css_style_get_value (style, GTK_CSS_PROPERTY_MIN_HEIGHT), 100);
gtk_style_context_restore (context);
expander_size = MAX (min_width, min_height);
priv->expander_size = expander_size + (_TREE_VIEW_HORIZONTAL_SEPARATOR / 2);
return priv->expander_size;
}
static void
get_current_selection_modifiers (GtkWidget *widget,
gboolean *modify,
gboolean *extend)
{
GdkModifierType state = 0;
GdkModifierType mask;
*modify = FALSE;
*extend = FALSE;
if (gtk_get_current_event_state (&state))
{
mask = gtk_widget_get_modifier_mask (widget, GDK_MODIFIER_INTENT_MODIFY_SELECTION);
if ((state & mask) == mask)
*modify = TRUE;
mask = gtk_widget_get_modifier_mask (widget, GDK_MODIFIER_INTENT_EXTEND_SELECTION);
if ((state & mask) == mask)
*extend = TRUE;
}
}
static void
gtk_tree_view_click_gesture_pressed (GtkGestureClick *gesture,
gint n_press,
gdouble x,
gdouble y,
GtkTreeView *tree_view)
{
GtkWidget *widget = GTK_WIDGET (tree_view);
GdkRectangle background_area, cell_area;
GtkTreeViewColumn *column = NULL;
GdkEventSequence *sequence;
GdkModifierType modifiers;
const GdkEvent *event;
gint new_y, y_offset;
gint bin_x, bin_y;
GtkTreePath *path;
GtkTreeRBNode *node;
GtkTreeRBTree *tree;
gint depth;
guint button;
GList *list;
gboolean rtl;
rtl = (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
gtk_tree_view_stop_editing (tree_view, FALSE);
button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture));
if (button > 3)
{
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED);
return;
}
/* Because grab_focus can cause reentrancy, we delay grab_focus until after
* we're done handling the button press.
*/
gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, x, y,
&bin_x, &bin_y);
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
if (n_press > 1)
gtk_gesture_set_state (tree_view->priv->drag_gesture,
GTK_EVENT_SEQUENCE_DENIED);
/* Empty tree? */
if (tree_view->priv->tree == NULL)
{
grab_focus_and_unset_draw_keyfocus (tree_view);
return;
}
/* are we in an arrow? */
if (tree_view->priv->prelight_node &&
tree_view->priv->arrow_prelit &&
gtk_tree_view_draw_expanders (tree_view))
{
if (button == GDK_BUTTON_PRIMARY)
{
tree_view->priv->button_pressed_node = tree_view->priv->prelight_node;
tree_view->priv->button_pressed_tree = tree_view->priv->prelight_tree;
gtk_widget_queue_draw (widget);
}
grab_focus_and_unset_draw_keyfocus (tree_view);
return;
}
/* find the node that was clicked */
new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, bin_y);
if (new_y < 0)
new_y = 0;
y_offset = -gtk_tree_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
if (node == NULL)
{
/* We clicked in dead space */
grab_focus_and_unset_draw_keyfocus (tree_view);
return;
}
/* Get the path and the node */
path = _gtk_tree_path_new_from_rbtree (tree, node);
if (row_is_separator (tree_view, NULL, path))
{
gtk_tree_path_free (path);
grab_focus_and_unset_draw_keyfocus (tree_view);
return;
}
depth = gtk_tree_path_get_depth (path);
background_area.y = y_offset + bin_y;
background_area.height = gtk_tree_view_get_row_height (tree_view, node);
background_area.x = 0;
gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
background_area.x,
background_area.y,
&background_area.x,
&background_area.y);
/* Let the column have a chance at selecting it. */
rtl = (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list; list = (rtl ? list->prev : list->next))
{
GtkTreeViewColumn *candidate = list->data;
if (!gtk_tree_view_column_get_visible (candidate))
continue;
background_area.width = gtk_tree_view_column_get_width (candidate);
if ((background_area.x > bin_x) ||
(background_area.x + background_area.width <= bin_x))
{
background_area.x += background_area.width;
continue;
}
/* we found the focus column */
column = candidate;
cell_area = background_area;
cell_area.width -= _TREE_VIEW_HORIZONTAL_SEPARATOR;
cell_area.x += _TREE_VIEW_HORIZONTAL_SEPARATOR / 2;
if (gtk_tree_view_is_expander_column (tree_view, column))
{
if (!rtl)
cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
if (gtk_tree_view_draw_expanders (tree_view))
{
gint expander_size = gtk_tree_view_get_expander_size (tree_view);
if (!rtl)
cell_area.x += depth * expander_size;
cell_area.width -= depth * expander_size;
}
}
break;
}
if (column == NULL)
{
gtk_tree_path_free (path);
grab_focus_and_unset_draw_keyfocus (tree_view);
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED);
return;
}
_gtk_tree_view_set_focus_column (tree_view, column);
sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
event = gtk_gesture_get_last_event (GTK_GESTURE (gesture), sequence);
gdk_event_get_state (event, &modifiers);
/* decide if we edit */
if (button == GDK_BUTTON_PRIMARY &&
!(modifiers & gtk_accelerator_get_default_mod_mask ()))
{
GtkTreePath *anchor;
GtkTreeIter iter;
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
gtk_tree_view_column_cell_set_cell_data (column,
tree_view->priv->model,
&iter,
GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT),
node->children?TRUE:FALSE);
if (tree_view->priv->anchor)
anchor = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
else
anchor = NULL;
if ((anchor && !gtk_tree_path_compare (anchor, path))
|| !_gtk_tree_view_column_has_editable_cell (column))
{
GtkCellEditable *cell_editable = NULL;
/* FIXME: get the right flags */
guint flags = 0;
if (_gtk_tree_view_column_cell_event (column,
(GdkEvent *)event,
&cell_area, flags))
{
GtkCellArea *area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (column));
cell_editable = gtk_cell_area_get_edit_widget (area);
if (cell_editable != NULL)
{
gtk_tree_path_free (path);
gtk_tree_path_free (anchor);
return;
}
}
}
if (anchor)
gtk_tree_path_free (anchor);
}
/* we only handle selection modifications on the first button press
*/
if (n_press == 1)
{
GtkCellRenderer *focus_cell;
gboolean modify, extend;
get_current_selection_modifiers (widget, &modify, &extend);
tree_view->priv->modify_selection_pressed = modify;
tree_view->priv->extend_selection_pressed = extend;
/* We update the focus cell here, this is also needed if the
* column does not contain an editable cell. In this case,
* GtkCellArea did not receive the event for processing (and
* could not update the focus cell).
*/
focus_cell = _gtk_tree_view_column_get_cell_at_pos (column,
&cell_area,
&background_area,
bin_x, bin_y);
if (focus_cell)
gtk_tree_view_column_focus_cell (column, focus_cell);
if (modify)
{
gtk_tree_view_real_set_cursor (tree_view, path, CLAMP_NODE);
gtk_tree_view_real_toggle_cursor_row (tree_view);
}
else if (extend)
{
gtk_tree_view_real_set_cursor (tree_view, path, CLAMP_NODE);
gtk_tree_view_real_select_cursor_row (tree_view, FALSE);
}
else
{
gtk_tree_view_real_set_cursor (tree_view, path, CLEAR_AND_SELECT | CLAMP_NODE);
}
tree_view->priv->modify_selection_pressed = FALSE;
tree_view->priv->extend_selection_pressed = FALSE;
}
if (button == GDK_BUTTON_PRIMARY && n_press == 2)
gtk_tree_view_row_activated (tree_view, path, column);
else
{
if (n_press == 1)
{
tree_view->priv->button_pressed_node = tree_view->priv->prelight_node;
tree_view->priv->button_pressed_tree = tree_view->priv->prelight_tree;
}
grab_focus_and_unset_draw_keyfocus (tree_view);
}
gtk_tree_path_free (path);
if (n_press >= 2)
gtk_event_controller_reset (GTK_EVENT_CONTROLLER (gesture));
}
static void
gtk_tree_view_drag_gesture_begin (GtkGestureDrag *gesture,
gdouble start_x,
gdouble start_y,
GtkTreeView *tree_view)
{
gint bin_x, bin_y;
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
if (tree_view->priv->tree == NULL)
{
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED);
return;
}
gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, start_x, start_y,
&bin_x, &bin_y);
tree_view->priv->press_start_x = tree_view->priv->rubber_band_x = bin_x;
tree_view->priv->press_start_y = tree_view->priv->rubber_band_y = bin_y;
gtk_tree_rbtree_find_offset (tree_view->priv->tree, bin_y + tree_view->priv->dy,
&tree, &node);
if (tree_view->priv->rubber_banding_enable
&& !GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_SELECTED)
&& gtk_tree_selection_get_mode (tree_view->priv->selection) == GTK_SELECTION_MULTIPLE)
{
gboolean modify, extend;
tree_view->priv->press_start_y += tree_view->priv->dy;
tree_view->priv->rubber_band_y += tree_view->priv->dy;
tree_view->priv->rubber_band_status = RUBBER_BAND_MAYBE_START;
get_current_selection_modifiers (GTK_WIDGET (tree_view), &modify, &extend);
tree_view->priv->rubber_band_modify = modify;
tree_view->priv->rubber_band_extend = extend;
}
}
static void
gtk_tree_view_column_click_gesture_pressed (GtkGestureClick *gesture,
gint n_press,
gdouble x,
gdouble y,
GtkTreeView *tree_view)
{
GtkTreeViewColumn *column;
GList *list;
if (n_press != 2)
return;
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (!_gtk_tree_view_column_coords_in_resize_rect (column, x, y) ||
!gtk_tree_view_column_get_resizable (column))
continue;
if (gtk_tree_view_column_get_sizing (column) != GTK_TREE_VIEW_COLUMN_AUTOSIZE)
{
gtk_tree_view_column_set_fixed_width (column, -1);
gtk_tree_view_column_set_expand (column, FALSE);
_gtk_tree_view_column_autosize (tree_view, column);
}
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
break;
}
}
static void
gtk_tree_view_column_drag_gesture_begin (GtkGestureDrag *gesture,
gdouble start_x,
gdouble start_y,
GtkTreeView *tree_view)
{
GtkTreeViewColumn *column;
gboolean rtl;
GList *list;
gint i;
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++)
{
gpointer drag_data;
gint column_width;
column = list->data;
if (!_gtk_tree_view_column_coords_in_resize_rect (column, start_x, start_y))
continue;
if (!gtk_tree_view_column_get_resizable (column))
break;
tree_view->priv->in_column_resize = TRUE;
/* block attached dnd signal handler */
drag_data = g_object_get_data (G_OBJECT (tree_view), "gtk-site-data");
if (drag_data)
g_signal_handlers_block_matched (tree_view,
G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL,
drag_data);
column_width = gtk_tree_view_column_get_width (column);
gtk_tree_view_column_set_fixed_width (column, column_width);
gtk_tree_view_column_set_expand (column, FALSE);
tree_view->priv->drag_pos = i;
tree_view->priv->x_drag = start_x + (rtl ? column_width : -column_width);
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
return;
}
}
static void
gtk_tree_view_update_button_position (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
GtkTreeViewPrivate *priv = tree_view->priv;
GList *column_el;
column_el = g_list_find (priv->columns, column);
g_return_if_fail (column_el != NULL);
gtk_css_node_insert_after (priv->header_node,
gtk_widget_get_css_node (gtk_tree_view_column_get_button (column)),
column_el->prev ? gtk_widget_get_css_node (
gtk_tree_view_column_get_button (column_el->prev->data)) : NULL);
}
/* column drag gesture helper */
static gboolean
gtk_tree_view_button_release_drag_column (GtkTreeView *tree_view)
{
GtkWidget *button, *widget = GTK_WIDGET (tree_view);
GList *l;
gboolean rtl;
GtkStyleContext *context;
rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
/* Move the button back */
button = gtk_tree_view_column_get_button (tree_view->priv->drag_column);
context = gtk_widget_get_style_context (button);
gtk_style_context_remove_class (context, GTK_STYLE_CLASS_DND);
gtk_tree_view_update_button_position (tree_view, tree_view->priv->drag_column);
gtk_widget_queue_allocate (widget);
gtk_widget_grab_focus (button);
if (rtl)
{
if (tree_view->priv->cur_reorder &&
tree_view->priv->cur_reorder->right_column != tree_view->priv->drag_column)
gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
tree_view->priv->cur_reorder->right_column);
}
else
{
if (tree_view->priv->cur_reorder &&
tree_view->priv->cur_reorder->left_column != tree_view->priv->drag_column)
gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
tree_view->priv->cur_reorder->left_column);
}
tree_view->priv->drag_column = NULL;
for (l = tree_view->priv->column_drag_info; l != NULL; l = l->next)
g_slice_free (GtkTreeViewColumnReorder, l->data);
g_list_free (tree_view->priv->column_drag_info);
tree_view->priv->column_drag_info = NULL;
tree_view->priv->cur_reorder = NULL;
/* Reset our flags */
tree_view->priv->drag_column_surface_state = DRAG_COLUMN_WINDOW_STATE_UNSET;
tree_view->priv->in_column_drag = FALSE;
return TRUE;
}
/* column drag gesture helper */
static gboolean
gtk_tree_view_button_release_column_resize (GtkTreeView *tree_view)
{
gpointer drag_data;
tree_view->priv->drag_pos = -1;
/* unblock attached dnd signal handler */
drag_data = g_object_get_data (G_OBJECT (tree_view), "gtk-site-data");
if (drag_data)
g_signal_handlers_unblock_matched (tree_view,
G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL,
drag_data);
tree_view->priv->in_column_resize = FALSE;
return TRUE;
}
static void
gtk_tree_view_column_drag_gesture_end (GtkGestureDrag *gesture,
gdouble offset_x,
gdouble offset_y,
GtkTreeView *tree_view)
{
GdkEventSequence *sequence;
sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
/* Cancel reorder if the drag got cancelled */
if (!gtk_gesture_handles_sequence (GTK_GESTURE (gesture), sequence))
tree_view->priv->cur_reorder = NULL;
if (tree_view->priv->in_column_drag)
gtk_tree_view_button_release_drag_column (tree_view);
else if (tree_view->priv->in_column_resize)
gtk_tree_view_button_release_column_resize (tree_view);
}
static void
gtk_tree_view_drag_gesture_end (GtkGestureDrag *gesture,
gdouble offset_x,
gdouble offset_y,
GtkTreeView *tree_view)
{
gtk_tree_view_stop_rubber_band (tree_view);
}
static void
gtk_tree_view_click_gesture_released (GtkGestureClick *gesture,
gint n_press,
gdouble x,
gdouble y,
GtkTreeView *tree_view)
{
gboolean modify, extend;
guint button;
button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture));
if (button != GDK_BUTTON_PRIMARY ||
tree_view->priv->button_pressed_node == NULL ||
tree_view->priv->button_pressed_node != tree_view->priv->prelight_node)
return;
get_current_selection_modifiers (GTK_WIDGET (tree_view), &modify, &extend);
if (tree_view->priv->arrow_prelit)
{
GtkTreePath *path = NULL;
path = _gtk_tree_path_new_from_rbtree (tree_view->priv->button_pressed_tree,
tree_view->priv->button_pressed_node);
/* Actually activate the node */
if (tree_view->priv->button_pressed_node->children == NULL)
gtk_tree_view_real_expand_row (tree_view, path,
tree_view->priv->button_pressed_tree,
tree_view->priv->button_pressed_node,
FALSE, TRUE);
else
gtk_tree_view_real_collapse_row (tree_view, path,
tree_view->priv->button_pressed_tree,
tree_view->priv->button_pressed_node, TRUE);
gtk_tree_path_free (path);
}
else if (tree_view->priv->activate_on_single_click && !modify && !extend)
{
GtkTreePath *path = NULL;
path = _gtk_tree_path_new_from_rbtree (tree_view->priv->button_pressed_tree,
tree_view->priv->button_pressed_node);
gtk_tree_view_row_activated (tree_view, path, tree_view->priv->focus_column);
gtk_tree_path_free (path);
}
tree_view->priv->button_pressed_tree = NULL;
tree_view->priv->button_pressed_node = NULL;
}
/* GtkWidget::motion_event function set.
*/
static gboolean
coords_are_over_arrow (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
GtkTreeRBNode *node,
/* these are in bin window coords */
gint x,
gint y)
{
GdkRectangle arrow;
gint x2;
if (!gtk_widget_get_realized (GTK_WIDGET (tree_view)))
return FALSE;
if ((node->flags & GTK_TREE_RBNODE_IS_PARENT) == 0)
return FALSE;
arrow.y = gtk_tree_view_get_row_y_offset (tree_view, tree, node);
arrow.height = gtk_tree_view_get_row_height (tree_view, node);
gtk_tree_view_get_arrow_xrange (tree_view, tree, &arrow.x, &x2);
arrow.width = x2 - arrow.x;
return (x >= arrow.x &&
x < (arrow.x + arrow.width) &&
y >= arrow.y &&
y < (arrow.y + arrow.height));
}
static gboolean
auto_expand_timeout (gpointer data)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (data);
GtkTreePath *path;
if (tree_view->priv->prelight_node)
{
path = _gtk_tree_path_new_from_rbtree (tree_view->priv->prelight_tree,
tree_view->priv->prelight_node);
if (tree_view->priv->prelight_node->children)
gtk_tree_view_collapse_row (tree_view, path);
else
gtk_tree_view_expand_row (tree_view, path, FALSE);
gtk_tree_path_free (path);
}
tree_view->priv->auto_expand_timeout = 0;
return FALSE;
}
static void
remove_auto_expand_timeout (GtkTreeView *tree_view)
{
if (tree_view->priv->auto_expand_timeout != 0)
{
g_source_remove (tree_view->priv->auto_expand_timeout);
tree_view->priv->auto_expand_timeout = 0;
}
}
static void
do_prelight (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
GtkTreeRBNode *node,
/* these are in bin_window coords */
gint x,
gint y)
{
if (tree_view->priv->prelight_tree == tree &&
tree_view->priv->prelight_node == node)
{
/* We are still on the same node,
but we might need to take care of the arrow */
if (tree && node && gtk_tree_view_draw_expanders (tree_view))
{
gboolean over_arrow;
over_arrow = coords_are_over_arrow (tree_view, tree, node, x, y);
if (over_arrow != tree_view->priv->arrow_prelit)
{
if (over_arrow)
tree_view->priv->arrow_prelit = TRUE;
else
tree_view->priv->arrow_prelit = FALSE;
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
}
return;
}
if (tree_view->priv->prelight_tree && tree_view->priv->prelight_node)
{
/* Unprelight the old node and arrow */
GTK_TREE_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node,
GTK_TREE_RBNODE_IS_PRELIT);
if (tree_view->priv->arrow_prelit
&& gtk_tree_view_draw_expanders (tree_view))
{
tree_view->priv->arrow_prelit = FALSE;
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
if (tree_view->priv->hover_expand)
remove_auto_expand_timeout (tree_view);
/* Set the new prelight values */
tree_view->priv->prelight_node = node;
tree_view->priv->prelight_tree = tree;
if (!node || !tree)
return;
/* Prelight the new node and arrow */
if (gtk_tree_view_draw_expanders (tree_view)
&& coords_are_over_arrow (tree_view, tree, node, x, y))
{
tree_view->priv->arrow_prelit = TRUE;
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
GTK_TREE_RBNODE_SET_FLAG (node, GTK_TREE_RBNODE_IS_PRELIT);
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
if (tree_view->priv->hover_expand)
{
tree_view->priv->auto_expand_timeout =
g_timeout_add (AUTO_EXPAND_TIMEOUT, auto_expand_timeout, tree_view);
g_source_set_name_by_id (tree_view->priv->auto_expand_timeout, "[gtk] auto_expand_timeout");
}
}
static void
prelight_or_select (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
GtkTreeRBNode *node,
/* these are in bin_window coords */
gint x,
gint y)
{
GtkSelectionMode mode = gtk_tree_selection_get_mode (tree_view->priv->selection);
if (tree_view->priv->hover_selection &&
(mode == GTK_SELECTION_SINGLE || mode == GTK_SELECTION_BROWSE) &&
!(tree_view->priv->edited_column &&
gtk_cell_area_get_edit_widget
(gtk_cell_layout_get_area (GTK_CELL_LAYOUT (tree_view->priv->edited_column)))))
{
if (node)
{
if (!GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_SELECTED))
{
GtkTreePath *path;
path = _gtk_tree_path_new_from_rbtree (tree, node);
gtk_tree_selection_select_path (tree_view->priv->selection, path);
if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_SELECTED))
{
tree_view->priv->draw_keyfocus = FALSE;
gtk_tree_view_real_set_cursor (tree_view, path, 0);
}
gtk_tree_path_free (path);
}
}
else if (mode == GTK_SELECTION_SINGLE)
gtk_tree_selection_unselect_all (tree_view->priv->selection);
}
do_prelight (tree_view, tree, node, x, y);
}
static void
ensure_unprelighted (GtkTreeView *tree_view)
{
do_prelight (tree_view,
NULL, NULL,
-1000, -1000); /* coords not possibly over an arrow */
g_assert (tree_view->priv->prelight_node == NULL);
}
static void
update_prelight (GtkTreeView *tree_view,
gint x,
gint y)
{
int new_y;
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
if (tree_view->priv->tree == NULL)
return;
if (x == -10000)
{
ensure_unprelighted (tree_view);
return;
}
new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y);
if (new_y < 0)
new_y = 0;
gtk_tree_rbtree_find_offset (tree_view->priv->tree,
new_y, &tree, &node);
if (node)
prelight_or_select (tree_view, tree, node, x, y);
}
static gboolean
gtk_tree_view_motion_resize_column (GtkTreeView *tree_view,
gdouble x,
gdouble y)
{
gint new_width;
GtkTreeViewColumn *column;
column = gtk_tree_view_get_column (tree_view, tree_view->priv->drag_pos);
if (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL)
new_width = MAX (tree_view->priv->x_drag - x, 0);
else
new_width = MAX (x - tree_view->priv->x_drag, 0);
if (new_width != gtk_tree_view_column_get_fixed_width (column))
gtk_tree_view_column_set_fixed_width (column, new_width);
return FALSE;
}
static void
gtk_tree_view_update_current_reorder (GtkTreeView *tree_view)
{
GtkTreeViewColumnReorder *reorder = NULL;
GdkEventSequence *sequence;
GList *list;
gdouble x;
sequence = gtk_gesture_single_get_current_sequence
(GTK_GESTURE_SINGLE (tree_view->priv->column_drag_gesture));
gtk_gesture_get_point (tree_view->priv->column_drag_gesture,
sequence, &x, NULL);
x += gtk_adjustment_get_value (tree_view->priv->hadjustment);
for (list = tree_view->priv->column_drag_info; list; list = list->next)
{
reorder = (GtkTreeViewColumnReorder *) list->data;
if (x >= reorder->left_align && x < reorder->right_align)
break;
reorder = NULL;
}
tree_view->priv->cur_reorder = reorder;
}
static void
gtk_tree_view_vertical_autoscroll (GtkTreeView *tree_view)
{
GdkRectangle visible_rect;
gint y;
gint offset;
if (gtk_gesture_is_recognized (tree_view->priv->drag_gesture))
{
GdkEventSequence *sequence;
gdouble py;
sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (tree_view->priv->drag_gesture));
gtk_gesture_get_point (tree_view->priv->drag_gesture, sequence, NULL, &py);
gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, 0, py,
NULL, &y);
}
else
{
y = tree_view->priv->event_last_y;
gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, 0, y, NULL, &y);
}
y += tree_view->priv->dy;
gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
/* see if we are near the edge. */
offset = y - (visible_rect.y + 2 * SCROLL_EDGE_SIZE);
if (offset > 0)
{
offset = y - (visible_rect.y + visible_rect.height - 2 * SCROLL_EDGE_SIZE);
if (offset < 0)
return;
}
gtk_adjustment_set_value (tree_view->priv->vadjustment,
MAX (gtk_adjustment_get_value (tree_view->priv->vadjustment) + offset, 0.0));
}
static void
gtk_tree_view_horizontal_autoscroll (GtkTreeView *tree_view)
{
GdkEventSequence *sequence;
GdkRectangle visible_rect;
gdouble x;
gint offset;
sequence = gtk_gesture_single_get_current_sequence
(GTK_GESTURE_SINGLE (tree_view->priv->column_drag_gesture));
gtk_gesture_get_point (tree_view->priv->column_drag_gesture,
sequence, &x, NULL);
gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
x += gtk_adjustment_get_value (tree_view->priv->hadjustment);
/* See if we are near the edge. */
offset = x - (visible_rect.x + SCROLL_EDGE_SIZE);
if (offset > 0)
{
offset = x - (visible_rect.x + visible_rect.width - SCROLL_EDGE_SIZE);
if (offset < 0)
return;
}
offset = offset/3;
gtk_adjustment_set_value (tree_view->priv->hadjustment,
MAX (gtk_adjustment_get_value (tree_view->priv->hadjustment) + offset, 0.0));
}
static void
gtk_tree_view_motion_drag_column (GtkTreeView *tree_view,
gdouble x,
gdouble y)
{
GtkTreeViewColumn *column = tree_view->priv->drag_column;
GtkWidget *button;
gint width, button_width;
button = gtk_tree_view_column_get_button (column);
x += gtk_adjustment_get_value (tree_view->priv->hadjustment);
/* Handle moving the header */
width = gtk_widget_get_allocated_width (GTK_WIDGET (tree_view));
button_width = gtk_widget_get_allocated_width (button);
tree_view->priv->drag_column_x = CLAMP (x - _gtk_tree_view_column_get_drag_x (column), 0,
MAX (tree_view->priv->width, width) - button_width);
/* autoscroll, if needed */
gtk_tree_view_horizontal_autoscroll (tree_view);
/* Update the current reorder position and arrow; */
gtk_tree_view_update_current_reorder (tree_view);
gtk_widget_queue_allocate (GTK_WIDGET (tree_view));
}
static void
gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view)
{
remove_scroll_timeout (tree_view);
if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
{
GtkTreePath *tmp_path;
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
/* The anchor path should be set to the start path */
if (tree_view->priv->rubber_band_start_node)
{
tmp_path = _gtk_tree_path_new_from_rbtree (tree_view->priv->rubber_band_start_tree,
tree_view->priv->rubber_band_start_node);
if (tree_view->priv->anchor)
gtk_tree_row_reference_free (tree_view->priv->anchor);
tree_view->priv->anchor =
gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
tree_view->priv->model,
tmp_path);
gtk_tree_path_free (tmp_path);
}
/* ... and the cursor to the end path */
if (tree_view->priv->rubber_band_end_node)
{
tmp_path = _gtk_tree_path_new_from_rbtree (tree_view->priv->rubber_band_end_tree,
tree_view->priv->rubber_band_end_node);
gtk_tree_view_real_set_cursor (GTK_TREE_VIEW (tree_view), tmp_path, 0);
gtk_tree_path_free (tmp_path);
}
_gtk_tree_selection_emit_changed (tree_view->priv->selection);
gtk_css_node_set_parent (tree_view->priv->rubber_band_cssnode, NULL);
tree_view->priv->rubber_band_cssnode = NULL;
}
/* Clear status variables */
tree_view->priv->rubber_band_status = RUBBER_BAND_OFF;
tree_view->priv->rubber_band_extend = FALSE;
tree_view->priv->rubber_band_modify = FALSE;
tree_view->priv->rubber_band_start_node = NULL;
tree_view->priv->rubber_band_start_tree = NULL;
tree_view->priv->rubber_band_end_node = NULL;
tree_view->priv->rubber_band_end_tree = NULL;
}
static void
gtk_tree_view_update_rubber_band_selection_range (GtkTreeView *tree_view,
GtkTreeRBTree *start_tree,
GtkTreeRBNode *start_node,
GtkTreeRBTree *end_tree,
GtkTreeRBNode *end_node,
gboolean select,
gboolean skip_start,
gboolean skip_end)
{
if (start_node == end_node)
return;
/* We skip the first node and jump inside the loop */
if (skip_start)
goto skip_first;
do
{
/* Small optimization by assuming insensitive nodes are never
* selected.
*/
if (!GTK_TREE_RBNODE_FLAG_SET (start_node, GTK_TREE_RBNODE_IS_SELECTED))
{
GtkTreePath *path;
gboolean selectable;
path = _gtk_tree_path_new_from_rbtree (start_tree, start_node);
selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection, start_node, path);
gtk_tree_path_free (path);
if (!selectable)
goto node_not_selectable;
}
if (select)
{
if (tree_view->priv->rubber_band_extend)
GTK_TREE_RBNODE_SET_FLAG (start_node, GTK_TREE_RBNODE_IS_SELECTED);
else if (tree_view->priv->rubber_band_modify)
{
/* Toggle the selection state */
if (GTK_TREE_RBNODE_FLAG_SET (start_node, GTK_TREE_RBNODE_IS_SELECTED))
GTK_TREE_RBNODE_UNSET_FLAG (start_node, GTK_TREE_RBNODE_IS_SELECTED);
else
GTK_TREE_RBNODE_SET_FLAG (start_node, GTK_TREE_RBNODE_IS_SELECTED);
}
else
GTK_TREE_RBNODE_SET_FLAG (start_node, GTK_TREE_RBNODE_IS_SELECTED);
}
else
{
/* Mirror the above */
if (tree_view->priv->rubber_band_extend)
GTK_TREE_RBNODE_UNSET_FLAG (start_node, GTK_TREE_RBNODE_IS_SELECTED);
else if (tree_view->priv->rubber_band_modify)
{
/* Toggle the selection state */
if (GTK_TREE_RBNODE_FLAG_SET (start_node, GTK_TREE_RBNODE_IS_SELECTED))
GTK_TREE_RBNODE_UNSET_FLAG (start_node, GTK_TREE_RBNODE_IS_SELECTED);
else
GTK_TREE_RBNODE_SET_FLAG (start_node, GTK_TREE_RBNODE_IS_SELECTED);
}
else
GTK_TREE_RBNODE_UNSET_FLAG (start_node, GTK_TREE_RBNODE_IS_SELECTED);
}
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
node_not_selectable:
if (start_node == end_node)
break;
skip_first:
if (start_node->children)
{
start_tree = start_node->children;
start_node = gtk_tree_rbtree_first (start_tree);
}
else
{
gtk_tree_rbtree_next_full (start_tree, start_node, &start_tree, &start_node);
if (!start_tree)
/* Ran out of tree */
break;
}
if (skip_end && start_node == end_node)
break;
}
while (TRUE);
}
static void
gtk_tree_view_update_rubber_band_selection (GtkTreeView *tree_view)
{
GtkTreeRBTree *start_tree, *end_tree;
GtkTreeRBNode *start_node, *end_node;
gdouble start_y, offset_y;
gint bin_y;
if (!gtk_gesture_is_active (tree_view->priv->drag_gesture))
return;
gtk_gesture_drag_get_offset (GTK_GESTURE_DRAG (tree_view->priv->drag_gesture),
NULL, &offset_y);
gtk_gesture_drag_get_start_point (GTK_GESTURE_DRAG (tree_view->priv->drag_gesture),
NULL, &start_y);
gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, 0, start_y,
NULL, &bin_y);
bin_y = MAX (0, bin_y + offset_y + tree_view->priv->dy);
gtk_tree_rbtree_find_offset (tree_view->priv->tree, MIN (tree_view->priv->press_start_y, bin_y), &start_tree, &start_node);
gtk_tree_rbtree_find_offset (tree_view->priv->tree, MAX (tree_view->priv->press_start_y, bin_y), &end_tree, &end_node);
/* Handle the start area first */
if (!start_node && !end_node)
{
if (tree_view->priv->rubber_band_start_node)
{
GtkTreeRBNode *node = tree_view->priv->rubber_band_start_node;
if (tree_view->priv->rubber_band_modify)
{
/* Toggle the selection state */
if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_SELECTED))
GTK_TREE_RBNODE_UNSET_FLAG (node, GTK_TREE_RBNODE_IS_SELECTED);
else
GTK_TREE_RBNODE_SET_FLAG (node, GTK_TREE_RBNODE_IS_SELECTED);
}
else
GTK_TREE_RBNODE_UNSET_FLAG (node, GTK_TREE_RBNODE_IS_SELECTED);
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
}
if (!tree_view->priv->rubber_band_start_node || !start_node)
{
gtk_tree_view_update_rubber_band_selection_range (tree_view,
start_tree,
start_node,
end_tree,
end_node,
TRUE,
FALSE,
FALSE);
}
else if (gtk_tree_rbtree_node_find_offset (start_tree, start_node) <
gtk_tree_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
{
/* New node is above the old one; selection became bigger */
gtk_tree_view_update_rubber_band_selection_range (tree_view,
start_tree,
start_node,
tree_view->priv->rubber_band_start_tree,
tree_view->priv->rubber_band_start_node,
TRUE,
FALSE,
TRUE);
}
else if (gtk_tree_rbtree_node_find_offset (start_tree, start_node) >
gtk_tree_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
{
/* New node is below the old one; selection became smaller */
gtk_tree_view_update_rubber_band_selection_range (tree_view,
tree_view->priv->rubber_band_start_tree,
tree_view->priv->rubber_band_start_node,
start_tree,
start_node,
FALSE,
FALSE,
TRUE);
}
tree_view->priv->rubber_band_start_tree = start_tree;
tree_view->priv->rubber_band_start_node = start_node;
/* Next, handle the end area */
if (!tree_view->priv->rubber_band_end_node)
{
/* In the event this happens, start_node was also NULL; this case is
* handled above.
*/
}
else if (!end_node)
{
/* Find the last node in the tree */
gtk_tree_rbtree_find_offset (tree_view->priv->tree, gtk_tree_view_get_height (tree_view) - 1,
&end_tree, &end_node);
/* Selection reached end of the tree */
gtk_tree_view_update_rubber_band_selection_range (tree_view,
tree_view->priv->rubber_band_end_tree,
tree_view->priv->rubber_band_end_node,
end_tree,
end_node,
TRUE,
TRUE,
FALSE);
}
else if (gtk_tree_rbtree_node_find_offset (end_tree, end_node) >
gtk_tree_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
{
/* New node is below the old one; selection became bigger */
gtk_tree_view_update_rubber_band_selection_range (tree_view,
tree_view->priv->rubber_band_end_tree,
tree_view->priv->rubber_band_end_node,
end_tree,
end_node,
TRUE,
TRUE,
FALSE);
}
else if (gtk_tree_rbtree_node_find_offset (end_tree, end_node) <
gtk_tree_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
{
/* New node is above the old one; selection became smaller */
gtk_tree_view_update_rubber_band_selection_range (tree_view,
end_tree,
end_node,
tree_view->priv->rubber_band_end_tree,
tree_view->priv->rubber_band_end_node,
FALSE,
TRUE,
FALSE);
}
tree_view->priv->rubber_band_end_tree = end_tree;
tree_view->priv->rubber_band_end_node = end_node;
}
static void
gtk_tree_view_update_rubber_band (GtkTreeView *tree_view)
{
gdouble start_x, start_y, offset_x, offset_y, x, y;
gint bin_x, bin_y;
if (!gtk_gesture_is_recognized (tree_view->priv->drag_gesture))
return;
gtk_gesture_drag_get_offset (GTK_GESTURE_DRAG (tree_view->priv->drag_gesture),
&offset_x, &offset_y);
gtk_gesture_drag_get_start_point (GTK_GESTURE_DRAG (tree_view->priv->drag_gesture),
&start_x, &start_y);
gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, start_x, start_y,
&bin_x, &bin_y);
bin_y += tree_view->priv->dy;
x = MAX (bin_x + offset_x, 0);
y = MAX (bin_y + offset_y, 0);
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
tree_view->priv->rubber_band_x = x;
tree_view->priv->rubber_band_y = y;
gtk_tree_view_update_rubber_band_selection (tree_view);
}
static void
gtk_tree_view_snapshot_rubber_band (GtkTreeView *tree_view,
GtkSnapshot *snapshot)
{
gdouble start_x, start_y, offset_x, offset_y;
GdkRectangle rect;
GtkStyleContext *context;
gint bin_x, bin_y;
if (!gtk_gesture_is_recognized (tree_view->priv->drag_gesture))
return;
gtk_gesture_drag_get_offset (GTK_GESTURE_DRAG (tree_view->priv->drag_gesture),
&offset_x, &offset_y);
gtk_gesture_drag_get_start_point (GTK_GESTURE_DRAG (tree_view->priv->drag_gesture),
&start_x, &start_y);
gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, start_x, start_y,
&bin_x, &bin_y);
bin_x = MAX (0, bin_x + offset_x);
bin_y = MAX (0, bin_y + offset_y + tree_view->priv->dy);
context = gtk_widget_get_style_context (GTK_WIDGET (tree_view));
gtk_style_context_save_to_node (context, tree_view->priv->rubber_band_cssnode);
rect.x = MIN (tree_view->priv->press_start_x, bin_x);
rect.y = MIN (tree_view->priv->press_start_y, bin_y) - tree_view->priv->dy;
rect.width = ABS (tree_view->priv->press_start_x - bin_x) + 1;
rect.height = ABS (tree_view->priv->press_start_y - bin_y) + 1;
gtk_snapshot_render_background (snapshot, context,
rect.x, rect.y,
rect.width, rect.height);
gtk_snapshot_render_frame (snapshot, context,
rect.x, rect.y,
rect.width, rect.height);
gtk_style_context_restore (context);
}
static void
gtk_tree_view_column_drag_gesture_update (GtkGestureDrag *gesture,
gdouble offset_x,
gdouble offset_y,
GtkTreeView *tree_view)
{
gdouble start_x, start_y, x, y;
GdkEventSequence *sequence;
sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
if (gtk_gesture_get_sequence_state (GTK_GESTURE (gesture), sequence) != GTK_EVENT_SEQUENCE_CLAIMED)
return;
gtk_gesture_drag_get_start_point (gesture, &start_x, &start_y);
x = start_x + offset_x;
y = start_y + offset_y;
if (tree_view->priv->in_column_resize)
gtk_tree_view_motion_resize_column (tree_view, x, y);
else if (tree_view->priv->in_column_drag)
gtk_tree_view_motion_drag_column (tree_view, x, y);
}
static void
gtk_tree_view_drag_gesture_update (GtkGestureDrag *gesture,
gdouble offset_x,
gdouble offset_y,
GtkTreeView *tree_view)
{
if (tree_view->priv->tree == NULL)
{
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED);
return;
}
if (tree_view->priv->rubber_band_status == RUBBER_BAND_MAYBE_START)
{
GtkCssNode *widget_node;
widget_node = gtk_widget_get_css_node (GTK_WIDGET (tree_view));
tree_view->priv->rubber_band_cssnode = gtk_css_node_new ();
gtk_css_node_set_name (tree_view->priv->rubber_band_cssnode, I_("rubberband"));
gtk_css_node_set_parent (tree_view->priv->rubber_band_cssnode, widget_node);
gtk_css_node_set_state (tree_view->priv->rubber_band_cssnode, gtk_css_node_get_state (widget_node));
g_object_unref (tree_view->priv->rubber_band_cssnode);
gtk_tree_view_update_rubber_band (tree_view);
tree_view->priv->rubber_band_status = RUBBER_BAND_ACTIVE;
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
}
else if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
{
gtk_tree_view_update_rubber_band (tree_view);
add_scroll_timeout (tree_view);
}
else if (!tree_view->priv->rubber_band_status)
{
if (gtk_tree_view_maybe_begin_dragging_row (tree_view))
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED);
}
}
static void
gtk_tree_view_motion_controller_motion (GtkEventControllerMotion *controller,
double x,
double y,
GtkTreeView *tree_view)
{
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
gint new_y;
GList *list;
gboolean cursor_set = FALSE;
if (tree_view->priv->tree)
{
gint bin_x, bin_y;
/* If we are currently pressing down a button, we don't want to prelight anything else. */
if (gtk_gesture_is_active (tree_view->priv->drag_gesture) ||
gtk_gesture_is_active (tree_view->priv->click_gesture))
node = NULL;
gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, x, y,
&bin_x, &bin_y);
new_y = MAX (0, TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, bin_y));
gtk_tree_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
tree_view->priv->event_last_x = bin_x;
tree_view->priv->event_last_y = bin_y;
prelight_or_select (tree_view, tree, node, bin_x, bin_y);
}
for (list = tree_view->priv->columns; list; list = list->next)
{
GtkTreeViewColumn *column = list->data;
if (_gtk_tree_view_column_coords_in_resize_rect (column, x, y))
{
gtk_widget_set_cursor_from_name (GTK_WIDGET (tree_view), "col-resize");
cursor_set = TRUE;
break;
}
}
if (!cursor_set)
gtk_widget_set_cursor (GTK_WIDGET (tree_view), NULL);
}
/* Invalidate the focus rectangle near the edge of the bin_window; used when
* the tree is empty.
*/
static void
invalidate_empty_focus (GtkTreeView *tree_view)
{
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return;
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
typedef enum {
GTK_TREE_VIEW_GRID_LINE,
GTK_TREE_VIEW_TREE_LINE,
GTK_TREE_VIEW_FOREGROUND_LINE
} GtkTreeViewLineType;
static void
gtk_tree_view_snapshot_line (GtkTreeView *tree_view,
GtkSnapshot *snapshot,
GtkTreeViewLineType type,
int x1,
int y1,
int x2,
int y2)
{
GtkStyleContext *context;
cairo_t *cr;
cr = gtk_snapshot_append_cairo (snapshot,
&GRAPHENE_RECT_INIT (
MIN (x1, x2),
MIN (y1, y2),
ABS (x2 - x1) + 1,
ABS (y2 - y1) + 1
));
context = gtk_widget_get_style_context (GTK_WIDGET (tree_view));
switch (type)
{
case GTK_TREE_VIEW_TREE_LINE:
{
const GdkRGBA *color;
color = _gtk_css_rgba_value_get_rgba (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_BORDER_LEFT_COLOR));
gdk_cairo_set_source_rgba (cr, color);
cairo_set_line_width (cr, _TREE_VIEW_TREE_LINE_WIDTH);
if (tree_view->priv->tree_line_dashes[0])
cairo_set_dash (cr, tree_view->priv->tree_line_dashes, 2, 0.5);
}
break;
case GTK_TREE_VIEW_GRID_LINE:
{
const GdkRGBA *color;
color = _gtk_css_rgba_value_get_rgba (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_BORDER_TOP_COLOR));
gdk_cairo_set_source_rgba (cr, color);
cairo_set_line_width (cr, _TREE_VIEW_GRID_LINE_WIDTH);
if (tree_view->priv->grid_line_dashes[0])
cairo_set_dash (cr, tree_view->priv->grid_line_dashes, 2, 0.5);
}
break;
case GTK_TREE_VIEW_FOREGROUND_LINE:
{
GdkRGBA color;
cairo_set_line_width (cr, 1.0);
gtk_style_context_get_color (context, &color);
gdk_cairo_set_source_rgba (cr, &color);
}
break;
default:
g_assert_not_reached ();
break;
}
cairo_move_to (cr, x1 + 0.5, y1 + 0.5);
cairo_line_to (cr, x2 + 0.5, y2 + 0.5);
cairo_stroke (cr);
cairo_destroy (cr);
}
static void
gtk_tree_view_snapshot_grid_lines (GtkTreeView *tree_view,
GtkSnapshot *snapshot)
{
GList *list, *first, *last;
gboolean rtl;
gint current_x = 0;
if (tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_VERTICAL
&& tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_BOTH)
return;
rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
first = g_list_first (tree_view->priv->columns);
last = g_list_last (tree_view->priv->columns);
for (list = (rtl ? last : first);
list;
list = (rtl ? list->prev : list->next))
{
GtkTreeViewColumn *column = list->data;
/* We don't want a line for the last column */
if (column == (rtl ? first->data : last->data))
break;
if (!gtk_tree_view_column_get_visible (column))
continue;
current_x += gtk_tree_view_column_get_width (column);
gtk_tree_view_snapshot_line (tree_view, snapshot,
GTK_TREE_VIEW_GRID_LINE,
current_x - 1, 0,
current_x - 1, gtk_tree_view_get_height (tree_view));
}
}
/* Warning: Very scary function.
* Modify at your own risk
*
* KEEP IN SYNC WITH gtk_tree_view_create_row_drag_icon()!
* FIXME: It’s not...
*/
static void
gtk_tree_view_bin_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GtkTreeViewPrivate *priv = gtk_tree_view_get_instance_private (tree_view);
const int x_scroll_offset = - gtk_adjustment_get_value (priv->hadjustment);
GtkTreePath *path;
GtkTreeRBTree *tree;
GList *list;
GtkTreeRBNode *node;
GtkTreeRBNode *drag_highlight = NULL;
GtkTreeRBTree *drag_highlight_tree = NULL;
GtkTreeIter iter;
gint new_y;
gint y_offset, cell_offset;
gint max_height;
gint depth;
GdkRectangle background_area;
GdkRectangle cell_area;
GdkRectangle clip;
guint flags;
gint bin_window_width;
gint bin_window_height;
GtkTreePath *drag_dest_path;
GList *first_column, *last_column;
gboolean has_can_focus_cell;
gboolean rtl;
gint n_visible_columns;
gint expander_size;
gboolean draw_vgrid_lines, draw_hgrid_lines;
GtkStyleContext *context;
gboolean parity;
rtl = (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
context = gtk_widget_get_style_context (widget);
if (tree_view->priv->tree == NULL)
return;
bin_window_width = gtk_widget_get_width (GTK_WIDGET (tree_view));
bin_window_height = gtk_widget_get_height(GTK_WIDGET (tree_view));
clip = (GdkRectangle) { 0, 0, bin_window_width, bin_window_height };
new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, clip.y);
y_offset = -gtk_tree_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
if (gtk_tree_view_get_height (tree_view) < bin_window_height)
{
gtk_style_context_save (context);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_CELL);
gtk_snapshot_render_background (snapshot, context,
0, gtk_tree_view_get_height (tree_view),
bin_window_width,
bin_window_height - gtk_tree_view_get_height (tree_view));
gtk_style_context_restore (context);
}
if (node == NULL)
return;
/* find the path for the node */
path = _gtk_tree_path_new_from_rbtree (tree, node);
gtk_tree_model_get_iter (tree_view->priv->model,
&iter,
path);
depth = gtk_tree_path_get_depth (path);
gtk_tree_path_free (path);
drag_dest_path = NULL;
if (tree_view->priv->drag_dest_row)
drag_dest_path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
if (drag_dest_path)
_gtk_tree_view_find_node (tree_view, drag_dest_path,
&drag_highlight_tree, &drag_highlight);
draw_vgrid_lines =
tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
|| tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
draw_hgrid_lines =
tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
|| tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
expander_size = gtk_tree_view_get_expander_size (tree_view);
n_visible_columns = 0;
for (list = tree_view->priv->columns; list; list = list->next)
{
if (!gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (list->data)))
continue;
n_visible_columns ++;
}
/* Find the last column */
for (last_column = g_list_last (tree_view->priv->columns);
last_column &&
!(gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (last_column->data)));
last_column = last_column->prev)
;
/* and the first */
for (first_column = g_list_first (tree_view->priv->columns);
first_column &&
!(gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (first_column->data)));
first_column = first_column->next)
;
/* Actually process the expose event. To do this, we want to
* start at the first node of the event, and walk the tree in
* order, drawing each successive node.
*/
parity = !(gtk_tree_rbtree_node_get_index (tree, node) % 2);
do
{
gboolean is_separator = FALSE;
gint n_col = 0;
parity = !parity;
is_separator = row_is_separator (tree_view, &iter, NULL);
max_height = gtk_tree_view_get_row_height (tree_view, node);
cell_offset = x_scroll_offset;
background_area.y = y_offset + clip.y;
background_area.height = max_height;
flags = 0;
if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PRELIT))
flags |= GTK_CELL_RENDERER_PRELIT;
if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_SELECTED))
flags |= GTK_CELL_RENDERER_SELECTED;
/* we *need* to set cell data on all cells before the call
* to _has_can_focus_cell, else _has_can_focus_cell() does not
* return a correct value.
*/
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list;
list = (rtl ? list->prev : list->next))
{
GtkTreeViewColumn *column = list->data;
gtk_tree_view_column_cell_set_cell_data (column,
tree_view->priv->model,
&iter,
GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT),
node->children?TRUE:FALSE);
}
has_can_focus_cell = gtk_tree_view_has_can_focus_cell (tree_view);
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list;
list = (rtl ? list->prev : list->next))
{
GtkTreeViewColumn *column = list->data;
GtkStateFlags state = 0;
gint width;
gboolean draw_focus;
if (!gtk_tree_view_column_get_visible (column))
continue;
n_col++;
width = gtk_tree_view_column_get_width (column);
if (cell_offset > clip.x + clip.width ||
cell_offset + width < clip.x)
{
cell_offset += width;
continue;
}
if (gtk_tree_view_column_get_sort_indicator (column))
flags |= GTK_CELL_RENDERER_SORTED;
else
flags &= ~GTK_CELL_RENDERER_SORTED;
if (tree_view->priv->cursor_node == node)
flags |= GTK_CELL_RENDERER_FOCUSED;
else
flags &= ~GTK_CELL_RENDERER_FOCUSED;
if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT))
flags |= GTK_CELL_RENDERER_EXPANDABLE;
else
flags &= ~GTK_CELL_RENDERER_EXPANDABLE;
if (node->children)
flags |= GTK_CELL_RENDERER_EXPANDED;
else
flags &= ~GTK_CELL_RENDERER_EXPANDED;
background_area.x = cell_offset;
background_area.width = width;
cell_area = background_area;
cell_area.x += _TREE_VIEW_HORIZONTAL_SEPARATOR /2;
cell_area.width -= _TREE_VIEW_HORIZONTAL_SEPARATOR;
if (draw_vgrid_lines)
{
if (list == first_column)
{
cell_area.width -= _TREE_VIEW_GRID_LINE_WIDTH / 2;
}
else if (list == last_column)
{
cell_area.x += _TREE_VIEW_GRID_LINE_WIDTH / 2;
cell_area.width -= _TREE_VIEW_GRID_LINE_WIDTH / 2;
}
else
{
cell_area.x += _TREE_VIEW_GRID_LINE_WIDTH / 2;
cell_area.width -= _TREE_VIEW_GRID_LINE_WIDTH;
}
}
if (draw_hgrid_lines)
{
cell_area.y += _TREE_VIEW_GRID_LINE_WIDTH / 2;
cell_area.height -= _TREE_VIEW_GRID_LINE_WIDTH;
}
if (!gdk_rectangle_intersect (&clip, &background_area, NULL))
{
cell_offset += gtk_tree_view_column_get_width (column);
continue;
}
background_area.x -= x_scroll_offset;
cell_area.x -= x_scroll_offset;
gtk_tree_view_column_cell_set_cell_data (column,
tree_view->priv->model,
&iter,
GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT),
node->children?TRUE:FALSE);
gtk_style_context_save (context);
state = gtk_cell_renderer_get_state (NULL, widget, flags);
gtk_style_context_set_state (context, state);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_CELL);
if (node == tree_view->priv->cursor_node && has_can_focus_cell
&& ((column == tree_view->priv->focus_column
&& tree_view->priv->draw_keyfocus &&
gtk_widget_has_visible_focus (widget))
|| (column == tree_view->priv->edited_column)))
draw_focus = TRUE;
else
draw_focus = FALSE;
/* Draw background */
gtk_snapshot_render_background (snapshot, context,
background_area.x,
background_area.y,
background_area.width,
background_area.height);
/* Draw frame */
gtk_snapshot_render_frame (snapshot, context,
background_area.x,
background_area.y,
background_area.width,
background_area.height);
if (gtk_tree_view_is_expander_column (tree_view, column))
{
if (!rtl)
cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
if (gtk_tree_view_draw_expanders (tree_view))
{
if (!rtl)
cell_area.x += depth * expander_size;
cell_area.width -= depth * expander_size;
}
if (is_separator)
{
GdkRGBA color;
gtk_style_context_save (context);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_SEPARATOR);
gtk_style_context_get_color (context, &color);
gtk_snapshot_append_color (snapshot,
&color,
&GRAPHENE_RECT_INIT(
cell_area.x,
cell_area.y + cell_area.height / 2,
cell_area.x + cell_area.width,
1
));
gtk_style_context_restore (context);
}
else
{
gtk_tree_view_column_cell_snapshot (column,
snapshot,
&background_area,
&cell_area,
flags,
draw_focus);
}
if (gtk_tree_view_draw_expanders (tree_view)
&& (node->flags & GTK_TREE_RBNODE_IS_PARENT) == GTK_TREE_RBNODE_IS_PARENT)
{
gtk_tree_view_snapshot_arrow (GTK_TREE_VIEW (widget),
snapshot,
tree,
node);
}
}
else
{
if (is_separator)
{
GdkRGBA color;
gtk_style_context_save (context);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_SEPARATOR);
gtk_style_context_get_color (context, &color);
gtk_snapshot_append_color (snapshot,
&color,
&GRAPHENE_RECT_INIT(
cell_area.x,
cell_area.y + cell_area.height / 2,
cell_area.x + cell_area.width,
1
));
gtk_style_context_restore (context);
}
else
gtk_tree_view_column_cell_snapshot (column,
snapshot,
&background_area,
&cell_area,
flags,
draw_focus);
}
if (draw_hgrid_lines)
{
if (background_area.y >= clip.y)
gtk_tree_view_snapshot_line (tree_view, snapshot,
GTK_TREE_VIEW_GRID_LINE,
background_area.x, background_area.y,
background_area.x + background_area.width,
background_area.y);
if (background_area.y + max_height < clip.y + clip.height)
gtk_tree_view_snapshot_line (tree_view, snapshot,
GTK_TREE_VIEW_GRID_LINE,
background_area.x, background_area.y + max_height,
background_area.x + background_area.width,
background_area.y + max_height);
}
if (gtk_tree_view_is_expander_column (tree_view, column) &&
tree_view->priv->tree_lines_enabled)
{
gint x = background_area.x;
gint mult = rtl ? -1 : 1;
gint y0 = background_area.y;
gint y1 = background_area.y + background_area.height/2;
gint y2 = background_area.y + background_area.height;
if (rtl)
x += background_area.width - 1;
if ((node->flags & GTK_TREE_RBNODE_IS_PARENT) == GTK_TREE_RBNODE_IS_PARENT
&& depth > 1)
{
gtk_tree_view_snapshot_line (tree_view, snapshot,
GTK_TREE_VIEW_TREE_LINE,
x + expander_size * (depth - 1.5) * mult,
y1,
x + expander_size * (depth - 1.1) * mult,
y1);
}
else if (depth > 1)
{
gtk_tree_view_snapshot_line (tree_view, snapshot,
GTK_TREE_VIEW_TREE_LINE,
x + expander_size * (depth - 1.5) * mult,
y1,
x + expander_size * (depth - 0.5) * mult,
y1);
}
if (depth > 1)
{
gint i;
GtkTreeRBNode *tmp_node;
GtkTreeRBTree *tmp_tree;
if (!gtk_tree_rbtree_next (tree, node))
gtk_tree_view_snapshot_line (tree_view, snapshot,
GTK_TREE_VIEW_TREE_LINE,
x + expander_size * (depth - 1.5) * mult,
y0,
x + expander_size * (depth - 1.5) * mult,
y1);
else
gtk_tree_view_snapshot_line (tree_view, snapshot,
GTK_TREE_VIEW_TREE_LINE,
x + expander_size * (depth - 1.5) * mult,
y0,
x + expander_size * (depth - 1.5) * mult,
y2);
tmp_node = tree->parent_node;
tmp_tree = tree->parent_tree;
for (i = depth - 2; i > 0; i--)
{
if (gtk_tree_rbtree_next (tmp_tree, tmp_node))
gtk_tree_view_snapshot_line (tree_view, snapshot,
GTK_TREE_VIEW_TREE_LINE,
x + expander_size * (i - 0.5) * mult,
y0,
x + expander_size * (i - 0.5) * mult,
y2);
tmp_node = tmp_tree->parent_node;
tmp_tree = tmp_tree->parent_tree;
}
}
}
gtk_style_context_restore (context);
cell_offset += gtk_tree_view_column_get_width (column);
}
if (node == drag_highlight)
{
/* Draw indicator for the drop
*/
GtkTreeRBTree *drag_tree = NULL;
GtkTreeRBNode *drag_node = NULL;
gtk_style_context_save (context);
gtk_style_context_set_state (context, gtk_style_context_get_state (context) | GTK_STATE_FLAG_DROP_ACTIVE);
switch (tree_view->priv->drag_dest_pos)
{
case GTK_TREE_VIEW_DROP_BEFORE:
gtk_style_context_add_class (context, "before");
break;
case GTK_TREE_VIEW_DROP_AFTER:
gtk_style_context_add_class (context, "after");
break;
case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE:
case GTK_TREE_VIEW_DROP_INTO_OR_AFTER:
gtk_style_context_add_class (context, "into");
break;
default:
break;
}
_gtk_tree_view_find_node (tree_view, drag_dest_path, &drag_tree, &drag_node);
if (drag_tree != NULL)
gtk_snapshot_render_frame (snapshot, context,
0, gtk_tree_view_get_row_y_offset (tree_view, drag_tree, drag_node),
bin_window_width,
gtk_tree_view_get_row_height (tree_view, drag_node));
gtk_style_context_restore (context);
}
/* draw the big row-spanning focus rectangle, if needed */
if (!has_can_focus_cell && node == tree_view->priv->cursor_node &&
tree_view->priv->draw_keyfocus &&
gtk_widget_has_visible_focus (widget))
{
gint tmp_y, tmp_height;
GtkStateFlags focus_rect_state = 0;
gtk_style_context_save (context);
focus_rect_state = gtk_cell_renderer_get_state (NULL, widget, flags);
gtk_style_context_set_state (context, focus_rect_state);
if (draw_hgrid_lines)
{
tmp_y = gtk_tree_view_get_row_y_offset (tree_view, tree, node) + _TREE_VIEW_GRID_LINE_WIDTH / 2;
tmp_height = gtk_tree_view_get_row_height (tree_view, node) - _TREE_VIEW_GRID_LINE_WIDTH;
}
else
{
tmp_y = gtk_tree_view_get_row_y_offset (tree_view, tree, node);
tmp_height = gtk_tree_view_get_row_height (tree_view, node);
}
gtk_snapshot_render_focus (snapshot, context,
0, tmp_y,
bin_window_width,
tmp_height);
gtk_style_context_restore (context);
}
y_offset += max_height;
if (node->children)
{
GtkTreeIter parent = iter;
gboolean has_child;
tree = node->children;
node = gtk_tree_rbtree_first (tree);
has_child = gtk_tree_model_iter_children (tree_view->priv->model,
&iter,
&parent);
depth++;
/* Sanity Check! */
TREE_VIEW_INTERNAL_ASSERT_VOID (has_child);
}
else
{
gboolean done = FALSE;
do
{
node = gtk_tree_rbtree_next (tree, node);
if (node != NULL)
{
gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
done = TRUE;
/* Sanity Check! */
TREE_VIEW_INTERNAL_ASSERT_VOID (has_next);
}
else
{
GtkTreeIter parent_iter = iter;
gboolean has_parent;
node = tree->parent_node;
tree = tree->parent_tree;
if (tree == NULL)
/* we should go to done to free some memory */
goto done;
has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
&iter,
&parent_iter);
depth--;
/* Sanity check */
TREE_VIEW_INTERNAL_ASSERT_VOID (has_parent);
}
}
while (!done);
}
}
while (y_offset < clip.height);
done:
gtk_tree_view_snapshot_grid_lines (tree_view, snapshot);
if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
gtk_tree_view_snapshot_rubber_band (tree_view, snapshot);
if (drag_dest_path)
gtk_tree_path_free (drag_dest_path);
}
static void
gtk_tree_view_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GtkWidget *button;
GtkStyleContext *context;
GList *list;
gint width, height;
context = gtk_widget_get_style_context (widget);
width = gtk_widget_get_width (widget);
height = gtk_widget_get_height (widget);
gtk_snapshot_push_clip (snapshot,
&GRAPHENE_RECT_INIT(
0, gtk_tree_view_get_effective_header_height (tree_view),
width,
height - gtk_tree_view_get_effective_header_height (tree_view)
));
gtk_snapshot_save (snapshot);
gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (
- (gint) gtk_adjustment_get_value (tree_view->priv->hadjustment),
gtk_tree_view_get_effective_header_height (tree_view)));
gtk_tree_view_bin_snapshot (widget, snapshot);
gtk_snapshot_restore (snapshot);
/* We can't just chain up to Container::draw as it will try to send the
* event to the headers, so we handle propagating it to our children
* (eg. widgets being edited) ourselves.
*/
for (list = tree_view->priv->children; list; list = list->next)
{
GtkTreeViewChild *child = list->data;
gtk_widget_snapshot_child (widget, child->widget, snapshot);
}
gtk_snapshot_pop (snapshot);
gtk_snapshot_push_clip (snapshot,
&GRAPHENE_RECT_INIT(
0, 0,
width,
gtk_tree_view_get_effective_header_height (tree_view)
));
gtk_style_context_save (context);
gtk_style_context_remove_class (context, GTK_STYLE_CLASS_VIEW);
for (list = tree_view->priv->columns; list != NULL; list = list->next)
{
GtkTreeViewColumn *column = list->data;
if (column == tree_view->priv->drag_column)
continue;
if (gtk_tree_view_column_get_visible (column))
{
button = gtk_tree_view_column_get_button (column);
gtk_widget_snapshot_child (widget, button, snapshot);
}
}
if (tree_view->priv->drag_column)
{
button = gtk_tree_view_column_get_button (tree_view->priv->drag_column);
gtk_widget_snapshot_child (widget, button, snapshot);
}
gtk_style_context_restore (context);
gtk_snapshot_pop (snapshot);
}
enum
{
DROP_HOME,
DROP_RIGHT,
DROP_LEFT,
DROP_END
};
/* returns 0x1 when no column has been found -- yes it's hackish */
static GtkTreeViewColumn *
gtk_tree_view_get_drop_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
gint drop_position)
{
GtkTreeViewColumn *left_column = NULL;
GtkTreeViewColumn *cur_column = NULL;
GList *tmp_list;
if (!gtk_tree_view_column_get_reorderable (column))
return (GtkTreeViewColumn *)0x1;
switch (drop_position)
{
case DROP_HOME:
/* find first column where we can drop */
tmp_list = tree_view->priv->columns;
if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
return (GtkTreeViewColumn *)0x1;
while (tmp_list)
{
g_assert (tmp_list);
cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
tmp_list = tmp_list->next;
if (left_column &&
gtk_tree_view_column_get_visible (left_column) == FALSE)
continue;
if (!tree_view->priv->column_drop_func)
return left_column;
if (!tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
{
left_column = cur_column;
continue;
}
return left_column;
}
if (!tree_view->priv->column_drop_func)
return left_column;
if (tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
return left_column;
else
return (GtkTreeViewColumn *)0x1;
break;
case DROP_RIGHT:
/* find first column after column where we can drop */
tmp_list = tree_view->priv->columns;
for (; tmp_list; tmp_list = tmp_list->next)
if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
break;
if (!tmp_list || !tmp_list->next)
return (GtkTreeViewColumn *)0x1;
tmp_list = tmp_list->next;
left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
tmp_list = tmp_list->next;
while (tmp_list)
{
g_assert (tmp_list);
cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
tmp_list = tmp_list->next;
if (left_column &&
gtk_tree_view_column_get_visible (left_column) == FALSE)
{
left_column = cur_column;
if (tmp_list)
tmp_list = tmp_list->next;
continue;
}
if (!tree_view->priv->column_drop_func)
return left_column;
if (!tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
{
left_column = cur_column;
continue;
}
return left_column;
}
if (!tree_view->priv->column_drop_func)
return left_column;
if (tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
return left_column;
else
return (GtkTreeViewColumn *)0x1;
break;
case DROP_LEFT:
/* find first column before column where we can drop */
tmp_list = tree_view->priv->columns;
for (; tmp_list; tmp_list = tmp_list->next)
if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
break;
if (!tmp_list || !tmp_list->prev)
return (GtkTreeViewColumn *)0x1;
tmp_list = tmp_list->prev;
cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
tmp_list = tmp_list->prev;
while (tmp_list)
{
g_assert (tmp_list);
left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
if (left_column &&
gtk_tree_view_column_get_visible (left_column) == FALSE)
{
/*if (!tmp_list->prev)
return (GtkTreeViewColumn *)0x1;
*/
/*
cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->prev->data);
tmp_list = tmp_list->prev->prev;
continue;*/
cur_column = left_column;
if (tmp_list)
tmp_list = tmp_list->prev;
continue;
}
if (!tree_view->priv->column_drop_func)
return left_column;
if (tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
return left_column;
cur_column = left_column;
tmp_list = tmp_list->prev;
}
if (!tree_view->priv->column_drop_func)
return NULL;
if (tree_view->priv->column_drop_func (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
return NULL;
else
return (GtkTreeViewColumn *)0x1;
break;
case DROP_END:
/* same as DROP_HOME case, but doing it backwards */
tmp_list = g_list_last (tree_view->priv->columns);
cur_column = NULL;
if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
return (GtkTreeViewColumn *)0x1;
while (tmp_list)
{
g_assert (tmp_list);
left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
if (left_column &&
gtk_tree_view_column_get_visible (left_column) == FALSE)
{
cur_column = left_column;
tmp_list = tmp_list->prev;
}
if (!tree_view->priv->column_drop_func)
return left_column;
if (tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
return left_column;
cur_column = left_column;
tmp_list = tmp_list->prev;
}
if (!tree_view->priv->column_drop_func)
return NULL;
if (tree_view->priv->column_drop_func (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
return NULL;
else
return (GtkTreeViewColumn *)0x1;
break;
default:
return (GtkTreeViewColumn *)0x1;
break;
}
}
static gboolean
gtk_tree_view_search_key_cancels_search (guint keyval)
{
return keyval == GDK_KEY_Escape
|| keyval == GDK_KEY_Tab
|| keyval == GDK_KEY_KP_Tab
|| keyval == GDK_KEY_ISO_Left_Tab;
}
static gboolean
no_popup (void)
{
return TRUE;
}
static gboolean
gtk_tree_view_key_controller_key_pressed (GtkEventControllerKey *key,
guint keyval,
guint keycode,
GdkModifierType state,
GtkTreeView *tree_view)
{
GtkWidget *widget = GTK_WIDGET (tree_view);
GtkWidget *button;
GdkEvent *event;
if (tree_view->priv->rubber_band_status)
{
if (keyval == GDK_KEY_Escape)
gtk_tree_view_stop_rubber_band (tree_view);
return TRUE;
}
if (tree_view->priv->in_column_drag)
{
if (keyval == GDK_KEY_Escape)
gtk_gesture_set_state (GTK_GESTURE (tree_view->priv->column_drag_gesture),
GTK_EVENT_SEQUENCE_DENIED);
return TRUE;
}
if (tree_view->priv->headers_visible)
{
GList *focus_column;
gboolean rtl;
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
for (focus_column = tree_view->priv->columns;
focus_column;
focus_column = focus_column->next)
{
GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
button = gtk_tree_view_column_get_button (column);
if (gtk_widget_has_focus (button))
break;
}
if (focus_column &&
(state & GDK_SHIFT_MASK) && (state & GDK_MOD1_MASK) &&
(keyval == GDK_KEY_Left || keyval == GDK_KEY_KP_Left
|| keyval == GDK_KEY_Right || keyval == GDK_KEY_KP_Right))
{
GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
gint column_width;
if (!gtk_tree_view_column_get_resizable (column))
{
gtk_widget_error_bell (widget);
return TRUE;
}
column_width = gtk_tree_view_column_get_width (column);
if (keyval == (rtl ? GDK_KEY_Right : GDK_KEY_Left)
|| keyval == (rtl ? GDK_KEY_KP_Right : GDK_KEY_KP_Left))
{
column_width = MAX (column_width - 2, 0);
}
else if (keyval == (rtl ? GDK_KEY_Left : GDK_KEY_Right)
|| keyval == (rtl ? GDK_KEY_KP_Left : GDK_KEY_KP_Right))
{
column_width = column_width + 2;
}
gtk_tree_view_column_set_fixed_width (column, column_width);
gtk_tree_view_column_set_expand (column, FALSE);
return TRUE;
}
if (focus_column &&
(state & GDK_MOD1_MASK) &&
(keyval == GDK_KEY_Left || keyval == GDK_KEY_KP_Left
|| keyval == GDK_KEY_Right || keyval == GDK_KEY_KP_Right
|| keyval == GDK_KEY_Home || keyval == GDK_KEY_KP_Home
|| keyval == GDK_KEY_End || keyval == GDK_KEY_KP_End))
{
GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
if (keyval == (rtl ? GDK_KEY_Right : GDK_KEY_Left)
|| keyval == (rtl ? GDK_KEY_KP_Right : GDK_KEY_KP_Left))
{
GtkTreeViewColumn *col;
col = gtk_tree_view_get_drop_column (tree_view, column, DROP_LEFT);
if (col != (GtkTreeViewColumn *)0x1)
gtk_tree_view_move_column_after (tree_view, column, col);
else
gtk_widget_error_bell (widget);
}
else if (keyval == (rtl ? GDK_KEY_Left : GDK_KEY_Right)
|| keyval == (rtl ? GDK_KEY_KP_Left : GDK_KEY_KP_Right))
{
GtkTreeViewColumn *col;
col = gtk_tree_view_get_drop_column (tree_view, column, DROP_RIGHT);
if (col != (GtkTreeViewColumn *)0x1)
gtk_tree_view_move_column_after (tree_view, column, col);
else
gtk_widget_error_bell (widget);
}
else if (keyval == GDK_KEY_Home || keyval == GDK_KEY_KP_Home)
{
GtkTreeViewColumn *col;
col = gtk_tree_view_get_drop_column (tree_view, column, DROP_HOME);
if (col != (GtkTreeViewColumn *)0x1)
gtk_tree_view_move_column_after (tree_view, column, col);
else
gtk_widget_error_bell (widget);
}
else if (keyval == GDK_KEY_End || keyval == GDK_KEY_KP_End)
{
GtkTreeViewColumn *col;
col = gtk_tree_view_get_drop_column (tree_view, column, DROP_END);
if (col != (GtkTreeViewColumn *)0x1)
gtk_tree_view_move_column_after (tree_view, column, col);
else
gtk_widget_error_bell (widget);
}
return TRUE;
}
}
/* Handle the keybindings. */
event = gtk_get_current_event ();
if (gtk_bindings_activate_event (G_OBJECT (widget), (GdkEventKey *)event))
{
g_object_unref (event);
return TRUE;
}
g_object_unref (event);
if (tree_view->priv->search_entry_avoid_unhandled_binding)
{
tree_view->priv->search_entry_avoid_unhandled_binding = FALSE;
return FALSE;
}
/* Initially, before the search window is visible, we pass the event to the
* IM context of the search entry box. If it triggers a commit or a preedit,
* we then show the search window without loosing tree view focus.
* If the seach window is already visible, we forward the events to it,
* keeping the focus on the tree view.
*/
if (gtk_widget_has_focus (GTK_WIDGET (tree_view))
&& tree_view->priv->enable_search
&& !tree_view->priv->search_custom_entry_set
&& !gtk_tree_view_search_key_cancels_search (keyval))
{
GtkWidget *search_window;
gtk_tree_view_ensure_interactive_directory (tree_view);
search_window = tree_view->priv->search_window;
if (!gtk_widget_is_visible (search_window))
{
tree_view->priv->imcontext_changed = FALSE;
gtk_event_controller_key_forward (key, tree_view->priv->search_entry);
if (tree_view->priv->imcontext_changed)
{
GdkDevice *device;
device = gtk_get_current_event_device ();
if (gtk_tree_view_real_start_interactive_search (tree_view,
device,
FALSE))
{
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
return TRUE;
}
else
{
gtk_editable_set_text (GTK_EDITABLE (tree_view->priv->search_entry), "");
return FALSE;
}
}
}
else
{
gulong popup_menu_id;
popup_menu_id = g_signal_connect (tree_view->priv->search_entry,
"popup-menu", G_CALLBACK (no_popup),
NULL);
/* Because we keep the focus on the treeview, we need to forward the
* key events to the entry, when it is visible. */
gtk_event_controller_key_forward (key, search_window);
g_signal_handler_disconnect (tree_view->priv->search_entry,
popup_menu_id);
}
}
return FALSE;
}
static void
gtk_tree_view_key_controller_key_released (GtkEventControllerKey *key,
guint keyval,
guint keycode,
GdkModifierType state,
GtkTreeView *tree_view)
{
GdkEvent *event;
if (tree_view->priv->rubber_band_status)
return;
/* Handle the keybindings. */
event = gtk_get_current_event ();
gtk_bindings_activate_event (G_OBJECT (tree_view), (GdkEventKey *)event);
g_object_unref (event);
}
static void
gtk_tree_view_motion_controller_enter (GtkEventControllerMotion *controller,
double x,
double y,
GdkCrossingMode mode,
GdkNotifyType detail,
GtkTreeView *tree_view)
{
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
gint new_y;
if (tree_view->priv->tree == NULL)
return;
/* find the node internally */
new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, y);
if (new_y < 0)
new_y = 0;
gtk_tree_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
tree_view->priv->event_last_x = x;
tree_view->priv->event_last_y = y;
if ((tree_view->priv->button_pressed_node == NULL) ||
(tree_view->priv->button_pressed_node == node))
prelight_or_select (tree_view, tree, node, x, y);
}
static void
gtk_tree_view_motion_controller_leave (GtkEventControllerMotion *controller,
GdkCrossingMode mode,
GdkNotifyType detail,
GtkTreeView *tree_view)
{
gboolean is_focus, contains_focus;
if (tree_view->priv->prelight_node)
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
tree_view->priv->event_last_x = -10000;
tree_view->priv->event_last_y = -10000;
g_object_get (controller,
"is-pointer-focus", &is_focus,
"contains-pointer-focus", &contains_focus,
NULL);
if (!is_focus && !contains_focus)
prelight_or_select (tree_view, NULL, NULL, -1000, -1000); /* not possibly over an arrow */
}
static void
gtk_tree_view_key_controller_focus_out (GtkEventControllerKey *key,
GdkCrossingMode mode,
GdkNotifyType detail,
GtkTreeView *tree_view)
{
gboolean is_focus, contains_focus;
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
g_object_get (key,
"is-focus", &is_focus,
"contains-focus", &contains_focus,
NULL);
/* destroy interactive search dialog */
if (tree_view->priv->search_window &&
!is_focus && !contains_focus)
gtk_tree_view_search_window_hide (tree_view->priv->search_window, tree_view,
gtk_get_current_event_device ());
}
/* Incremental Reflow
*/
static gboolean
node_is_visible (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
GtkTreeRBNode *node)
{
int y;
int height;
y = gtk_tree_rbtree_node_find_offset (tree, node);
height = gtk_tree_view_get_row_height (tree_view, node);
if (y >= gtk_adjustment_get_value (tree_view->priv->vadjustment) &&
y + height <= (gtk_adjustment_get_value (tree_view->priv->vadjustment)
+ gtk_adjustment_get_page_size (tree_view->priv->vadjustment)))
return TRUE;
return FALSE;
}
static gint
get_separator_height (GtkTreeView *tree_view)
{
GtkStyleContext *context;
GtkCssStyle *style;
gdouble d;
gint min_size;
context = gtk_widget_get_style_context (GTK_WIDGET (tree_view));
gtk_style_context_save (context);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_SEPARATOR);
style = gtk_style_context_lookup_style (context);
d = _gtk_css_number_value_get
(gtk_css_style_get_value (style, GTK_CSS_PROPERTY_MIN_HEIGHT), 100);
if (d < 1)
min_size = ceil (d);
else
min_size = floor (d);
gtk_style_context_restore (context);
return min_size;
}
/* Returns TRUE if it updated the size
*/
static gboolean
validate_row (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
GtkTreeRBNode *node,
GtkTreeIter *iter,
GtkTreePath *path)
{
GtkTreeViewColumn *column;
GtkStyleContext *context;
GList *list, *first_column, *last_column;
gint height = 0;
gint depth = gtk_tree_path_get_depth (path);
gboolean retval = FALSE;
gboolean is_separator = FALSE;
gboolean draw_vgrid_lines, draw_hgrid_lines;
gint expander_size;
int separator_height;
/* double check the row needs validating */
if (! GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_INVALID) &&
! GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_COLUMN_INVALID))
return FALSE;
is_separator = row_is_separator (tree_view, iter, NULL);
draw_vgrid_lines =
tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
|| tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
draw_hgrid_lines =
tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
|| tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
expander_size = gtk_tree_view_get_expander_size (tree_view);
for (last_column = g_list_last (tree_view->priv->columns);
last_column &&
!(gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (last_column->data)));
last_column = last_column->prev)
;
for (first_column = g_list_first (tree_view->priv->columns);
first_column &&
!(gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (first_column->data)));
first_column = first_column->next)
;
separator_height = get_separator_height (tree_view);
context = gtk_widget_get_style_context (GTK_WIDGET (tree_view));
gtk_style_context_save (context);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_CELL);
for (list = tree_view->priv->columns; list; list = list->next)
{
gint padding = 0;
gint original_width;
gint new_width;
gint row_height;
column = list->data;
if (!gtk_tree_view_column_get_visible (column))
continue;
if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_COLUMN_INVALID) &&
!_gtk_tree_view_column_cell_get_dirty (column))
continue;
original_width = _gtk_tree_view_column_get_requested_width (column);
gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, iter,
GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT),
node->children?TRUE:FALSE);
gtk_tree_view_column_cell_get_size (column,
NULL, NULL, NULL,
NULL, &row_height);
if (is_separator)
{
height = separator_height;
/* gtk_tree_view_get_row_height() assumes separator nodes are > 0 */
height = MAX (height, 1);
}
else
{
height = MAX (height, row_height);
height = MAX (height, expander_size);
}
if (gtk_tree_view_is_expander_column (tree_view, column))
{
padding += _TREE_VIEW_HORIZONTAL_SEPARATOR + (depth - 1) * tree_view->priv->level_indentation;
if (gtk_tree_view_draw_expanders (tree_view))
padding += depth * expander_size;
}
else
padding += _TREE_VIEW_HORIZONTAL_SEPARATOR;
if (draw_vgrid_lines)
{
if (list->data == first_column || list->data == last_column)
padding += _TREE_VIEW_GRID_LINE_WIDTH / 2.0;
else
padding += _TREE_VIEW_GRID_LINE_WIDTH;
}
/* Update the padding for the column */
_gtk_tree_view_column_push_padding (column, padding);
new_width = _gtk_tree_view_column_get_requested_width (column);
if (new_width > original_width)
retval = TRUE;
}
gtk_style_context_restore (context);
if (draw_hgrid_lines)
height += _TREE_VIEW_GRID_LINE_WIDTH;
if (height != GTK_TREE_RBNODE_GET_HEIGHT (node))
{
retval = TRUE;
gtk_tree_rbtree_node_set_height (tree, node, height);
}
gtk_tree_rbtree_node_mark_valid (tree, node);
return retval;
}
static void
validate_visible_area (GtkTreeView *tree_view)
{
GtkTreePath *path = NULL;
GtkTreePath *above_path = NULL;
GtkTreeIter iter;
GtkTreeRBTree *tree = NULL;
GtkTreeRBNode *node = NULL;
gboolean need_redraw = FALSE;
gboolean size_changed = FALSE;
gint total_height;
gint area_above = 0;
gint area_below = 0;
if (tree_view->priv->tree == NULL)
return;
if (! GTK_TREE_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_TREE_RBNODE_DESCENDANTS_INVALID) &&
tree_view->priv->scroll_to_path == NULL)
return;
total_height = gtk_widget_get_height (GTK_WIDGET (tree_view))
- gtk_tree_view_get_effective_header_height (tree_view);
if (total_height == 0)
return;
/* First, we check to see if we need to scroll anywhere
*/
if (tree_view->priv->scroll_to_path)
{
path = gtk_tree_row_reference_get_path (tree_view->priv->scroll_to_path);
if (path && !_gtk_tree_view_find_node (tree_view, path, &tree, &node))
{
/* we are going to scroll, and will update dy */
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_INVALID) ||
GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_COLUMN_INVALID))
{
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
if (validate_row (tree_view, tree, node, &iter, path))
size_changed = TRUE;
}
if (tree_view->priv->scroll_to_use_align)
{
gint height = gtk_tree_view_get_row_height (tree_view, node);
area_above = (total_height - height) *
tree_view->priv->scroll_to_row_align;
area_below = total_height - area_above - height;
area_above = MAX (area_above, 0);
area_below = MAX (area_below, 0);
}
else
{
/* two cases:
* 1) row not visible
* 2) row visible
*/
gint dy;
gint height = gtk_tree_view_get_row_height (tree_view, node);
dy = gtk_tree_rbtree_node_find_offset (tree, node);
if (dy >= gtk_adjustment_get_value (tree_view->priv->vadjustment) &&
dy + height <= (gtk_adjustment_get_value (tree_view->priv->vadjustment)
+ gtk_adjustment_get_page_size (tree_view->priv->vadjustment)))
{
/* row visible: keep the row at the same position */
area_above = dy - gtk_adjustment_get_value (tree_view->priv->vadjustment);
area_below = (gtk_adjustment_get_value (tree_view->priv->vadjustment) +
gtk_adjustment_get_page_size (tree_view->priv->vadjustment))
- dy - height;
}
else
{
/* row not visible */
if (dy >= 0
&& dy + height <= gtk_adjustment_get_page_size (tree_view->priv->vadjustment))
{
/* row at the beginning -- fixed */
area_above = dy;
area_below = gtk_adjustment_get_page_size (tree_view->priv->vadjustment)
- area_above - height;
}
else if (dy >= (gtk_adjustment_get_upper (tree_view->priv->vadjustment) -
gtk_adjustment_get_page_size (tree_view->priv->vadjustment)))
{
/* row at the end -- fixed */
area_above = dy - (gtk_adjustment_get_upper (tree_view->priv->vadjustment) -
gtk_adjustment_get_page_size (tree_view->priv->vadjustment));
area_below = gtk_adjustment_get_page_size (tree_view->priv->vadjustment) -
area_above - height;
if (area_below < 0)
{
area_above = gtk_adjustment_get_page_size (tree_view->priv->vadjustment) - height;
area_below = 0;
}
}
else
{
/* row somewhere in the middle, bring it to the top
* of the view
*/
area_above = 0;
area_below = total_height - height;
}
}
}
}
else
/* the scroll to isn't valid; ignore it.
*/
{
if (tree_view->priv->scroll_to_path && !path)
{
gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
tree_view->priv->scroll_to_path = NULL;
}
if (path)
gtk_tree_path_free (path);
path = NULL;
}
}
/* We didn't have a scroll_to set, so we just handle things normally
*/
if (path == NULL)
{
gint offset;
offset = gtk_tree_rbtree_find_offset (tree_view->priv->tree,
TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
&tree, &node);
if (node == NULL)
{
/* In this case, nothing has been validated */
path = gtk_tree_path_new_first ();
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
}
else
{
path = _gtk_tree_path_new_from_rbtree (tree, node);
total_height += offset;
}
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_INVALID) ||
GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_COLUMN_INVALID))
{
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
if (validate_row (tree_view, tree, node, &iter, path))
size_changed = TRUE;
}
area_above = 0;
area_below = total_height - gtk_tree_view_get_row_height (tree_view, node);
}
above_path = gtk_tree_path_copy (path);
/* if we do not validate any row above the new top_row, we will make sure
* that the row immediately above top_row has been validated. (if we do not
* do this, gtk_tree_rbtree_find_offset will find the row above top_row, because
* when invalidated that row's height will be zero. and this will mess up
* scrolling).
*/
if (area_above == 0)
{
GtkTreeRBTree *tmptree;
GtkTreeRBNode *tmpnode;
_gtk_tree_view_find_node (tree_view, above_path, &tmptree, &tmpnode);
gtk_tree_rbtree_prev_full (tmptree, tmpnode, &tmptree, &tmpnode);
if (tmpnode)
{
GtkTreePath *tmppath;
GtkTreeIter tmpiter;
tmppath = _gtk_tree_path_new_from_rbtree (tmptree, tmpnode);
gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, tmppath);
if (GTK_TREE_RBNODE_FLAG_SET (tmpnode, GTK_TREE_RBNODE_INVALID) ||
GTK_TREE_RBNODE_FLAG_SET (tmpnode, GTK_TREE_RBNODE_COLUMN_INVALID))
{
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
if (validate_row (tree_view, tmptree, tmpnode, &tmpiter, tmppath))
size_changed = TRUE;
}
gtk_tree_path_free (tmppath);
}
}
/* Now, we walk forwards and backwards, measuring rows. Unfortunately,
* backwards is much slower then forward, as there is no iter_prev function.
* We go forwards first in case we run out of tree. Then we go backwards to
* fill out the top.
*/
while (node && area_below > 0)
{
if (node->children)
{
GtkTreeIter parent = iter;
gboolean has_child;
tree = node->children;
node = gtk_tree_rbtree_first (tree);
has_child = gtk_tree_model_iter_children (tree_view->priv->model,
&iter,
&parent);
TREE_VIEW_INTERNAL_ASSERT_VOID (has_child);
gtk_tree_path_down (path);
}
else
{
gboolean done = FALSE;
do
{
node = gtk_tree_rbtree_next (tree, node);
if (node != NULL)
{
gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
done = TRUE;
gtk_tree_path_next (path);
/* Sanity Check! */
TREE_VIEW_INTERNAL_ASSERT_VOID (has_next);
}
else
{
GtkTreeIter parent_iter = iter;
gboolean has_parent;
node = tree->parent_node;
tree = tree->parent_tree;
if (tree == NULL)
break;
has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
&iter,
&parent_iter);
gtk_tree_path_up (path);
/* Sanity check */
TREE_VIEW_INTERNAL_ASSERT_VOID (has_parent);
}
}
while (!done);
}
if (!node)
break;
if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_INVALID) ||
GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_COLUMN_INVALID))
{
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
if (validate_row (tree_view, tree, node, &iter, path))
size_changed = TRUE;
}
area_below -= gtk_tree_view_get_row_height (tree_view, node);
}
gtk_tree_path_free (path);
/* If we ran out of tree, and have extra area_below left, we need to add it
* to area_above */
if (area_below > 0)
area_above += area_below;
_gtk_tree_view_find_node (tree_view, above_path, &tree, &node);
/* We walk backwards */
while (area_above > 0)
{
gtk_tree_rbtree_prev_full (tree, node, &tree, &node);
/* Always find the new path in the tree. We cannot just assume
* a gtk_tree_path_prev() is enough here, as there might be children
* in between this node and the previous sibling node. If this
* appears to be a performance hotspot in profiles, we can look into
* intrigate logic for keeping path, node and iter in sync like
* we do for forward walks. (Which will be hard because of the lacking
* iter_prev).
*/
if (node == NULL)
break;
gtk_tree_path_free (above_path);
above_path = _gtk_tree_path_new_from_rbtree (tree, node);
gtk_tree_model_get_iter (tree_view->priv->model, &iter, above_path);
if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_INVALID) ||
GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_COLUMN_INVALID))
{
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
if (validate_row (tree_view, tree, node, &iter, above_path))
size_changed = TRUE;
}
area_above -= gtk_tree_view_get_row_height (tree_view, node);
}
/* if we scrolled to a path, we need to set the dy here,
* and sync the top row accordingly
*/
if (tree_view->priv->scroll_to_path)
{
gtk_tree_view_set_top_row (tree_view, above_path, -area_above);
gtk_tree_view_top_row_to_dy (tree_view);
need_redraw = TRUE;
}
else if (gtk_tree_view_get_height (tree_view) <= gtk_adjustment_get_page_size (tree_view->priv->vadjustment))
{
/* when we are not scrolling, we should never set dy to something
* else than zero. we update top_row to be in sync with dy = 0.
*/
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
gtk_tree_view_dy_to_top_row (tree_view);
}
else if (gtk_adjustment_get_value (tree_view->priv->vadjustment) + gtk_adjustment_get_page_size (tree_view->priv->vadjustment) > gtk_tree_view_get_height (tree_view))
{
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), gtk_tree_view_get_height (tree_view) - gtk_adjustment_get_page_size (tree_view->priv->vadjustment));
gtk_tree_view_dy_to_top_row (tree_view);
}
else
gtk_tree_view_top_row_to_dy (tree_view);
/* update width/height and queue a resize */
if (size_changed)
{
GtkRequisition requisition;
/* We temporarily guess a size, under the assumption that it will be the
* same when we get our next size_allocate. If we don't do this, we'll be
* in an inconsistent state if we call top_row_to_dy. */
gtk_widget_get_preferred_size (GTK_WIDGET (tree_view),
&requisition, NULL);
gtk_adjustment_set_upper (tree_view->priv->hadjustment,
MAX (gtk_adjustment_get_upper (tree_view->priv->hadjustment), requisition.width));
gtk_adjustment_set_upper (tree_view->priv->vadjustment,
MAX (gtk_adjustment_get_upper (tree_view->priv->vadjustment), requisition.height));
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
if (tree_view->priv->scroll_to_path)
{
gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
tree_view->priv->scroll_to_path = NULL;
}
if (above_path)
gtk_tree_path_free (above_path);
if (tree_view->priv->scroll_to_column)
{
tree_view->priv->scroll_to_column = NULL;
}
if (need_redraw)
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
static void
initialize_fixed_height_mode (GtkTreeView *tree_view)
{
if (!tree_view->priv->tree)
return;
if (tree_view->priv->fixed_height < 0)
{
GtkTreeIter iter;
GtkTreePath *path;
GtkTreeRBTree *tree = NULL;
GtkTreeRBNode *node = NULL;
tree = tree_view->priv->tree;
node = tree->root;
path = _gtk_tree_path_new_from_rbtree (tree, node);
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
validate_row (tree_view, tree, node, &iter, path);
gtk_tree_path_free (path);
tree_view->priv->fixed_height = gtk_tree_view_get_row_height (tree_view, node);
}
gtk_tree_rbtree_set_fixed_height (tree_view->priv->tree,
tree_view->priv->fixed_height, TRUE);
}
/* Our strategy for finding nodes to validate is a little convoluted. We find
* the left-most uninvalidated node. We then try walking right, validating
* nodes. Once we find a valid node, we repeat the previous process of finding
* the first invalid node.
*/
static gboolean
do_validate_rows (GtkTreeView *tree_view, gboolean queue_resize)
{
static gboolean prevent_recursion_hack = FALSE;
GtkTreeRBTree *tree = NULL;
GtkTreeRBNode *node = NULL;
gboolean validated_area = FALSE;
gint retval = TRUE;
GtkTreePath *path = NULL;
GtkTreeIter iter;
GTimer *timer;
gint i = 0;
gint y = -1;
gint prev_height = -1;
gboolean fixed_height = TRUE;
g_assert (tree_view);
/* prevent infinite recursion via get_preferred_width() */
if (prevent_recursion_hack)
return FALSE;
if (tree_view->priv->tree == NULL)
return FALSE;
if (tree_view->priv->fixed_height_mode)
{
if (tree_view->priv->fixed_height < 0)
initialize_fixed_height_mode (tree_view);
return FALSE;
}
timer = g_timer_new ();
g_timer_start (timer);
do
{
gboolean changed = FALSE;
if (! GTK_TREE_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_TREE_RBNODE_DESCENDANTS_INVALID))
{
retval = FALSE;
goto done;
}
if (path != NULL)
{
node = gtk_tree_rbtree_next (tree, node);
if (node != NULL)
{
TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_next (tree_view->priv->model, &iter), FALSE);
gtk_tree_path_next (path);
}
else
{
gtk_tree_path_free (path);
path = NULL;
}
}
if (path == NULL)
{
tree = tree_view->priv->tree;
node = tree_view->priv->tree->root;
g_assert (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_DESCENDANTS_INVALID));
do
{
if (!gtk_tree_rbtree_is_nil (node->left) &&
GTK_TREE_RBNODE_FLAG_SET (node->left, GTK_TREE_RBNODE_DESCENDANTS_INVALID))
{
node = node->left;
}
else if (!gtk_tree_rbtree_is_nil (node->right) &&
GTK_TREE_RBNODE_FLAG_SET (node->right, GTK_TREE_RBNODE_DESCENDANTS_INVALID))
{
node = node->right;
}
else if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_INVALID) ||
GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_COLUMN_INVALID))
{
break;
}
else if (node->children != NULL)
{
tree = node->children;
node = tree->root;
}
else
/* RBTree corruption! All bad */
g_assert_not_reached ();
}
while (TRUE);
path = _gtk_tree_path_new_from_rbtree (tree, node);
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
}
changed = validate_row (tree_view, tree, node, &iter, path);
validated_area = changed || validated_area;
if (changed)
{
gint offset = gtk_tree_view_get_row_y_offset (tree_view, tree, node);
if (y == -1 || y > offset)
y = offset;
}
if (!tree_view->priv->fixed_height_check)
{
gint height;
height = gtk_tree_view_get_row_height (tree_view, node);
if (prev_height < 0)
prev_height = height;
else if (prev_height != height)
fixed_height = FALSE;
}
i++;
}
while (g_timer_elapsed (timer, NULL) < GTK_TREE_VIEW_TIME_MS_PER_IDLE / 1000.);
if (!tree_view->priv->fixed_height_check)
{
if (fixed_height)
gtk_tree_rbtree_set_fixed_height (tree_view->priv->tree, prev_height, FALSE);
tree_view->priv->fixed_height_check = 1;
}
done:
if (validated_area)
{
GtkRequisition requisition;
gint dummy;
/* We temporarily guess a size, under the assumption that it will be the
* same when we get our next size_allocate. If we don't do this, we'll be
* in an inconsistent state when we call top_row_to_dy. */
/* FIXME: This is called from size_request, for some reason it is not infinitely
* recursing, we cannot call gtk_widget_get_preferred_size() here because that's
* not allowed (from inside ->get_preferred_width/height() implementations, one
* should call the vfuncs directly). However what is desired here is the full
* size including any margins and limited by any alignment (i.e. after
* GtkWidget:adjust_size_request() is called).
*
* Currently bypassing this but the real solution is to not update the scroll adjustments
* untill we've recieved an allocation (never update scroll adjustments from size-requests).
*/
prevent_recursion_hack = TRUE;
gtk_tree_view_measure (GTK_WIDGET (tree_view),
GTK_ORIENTATION_HORIZONTAL,
-1,
&requisition.width, &dummy,
NULL, NULL);
gtk_tree_view_measure (GTK_WIDGET (tree_view),
GTK_ORIENTATION_VERTICAL,
-1,
&requisition.height, &dummy,
NULL, NULL);
prevent_recursion_hack = FALSE;
/* If rows above the current position have changed height, this has
* affected the current view and thus needs a redraw.
*/
if (y != -1 && y < gtk_adjustment_get_value (tree_view->priv->vadjustment))
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
gtk_adjustment_set_upper (tree_view->priv->hadjustment,
MAX (gtk_adjustment_get_upper (tree_view->priv->hadjustment), requisition.width));
gtk_adjustment_set_upper (tree_view->priv->vadjustment,
MAX (gtk_adjustment_get_upper (tree_view->priv->vadjustment), requisition.height));
if (queue_resize)
gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
}
if (path) gtk_tree_path_free (path);
g_timer_destroy (timer);
if (!retval && gtk_widget_get_mapped (GTK_WIDGET (tree_view)))
update_prelight (tree_view,
tree_view->priv->event_last_x,
tree_view->priv->event_last_y);
return retval;
}
static void
disable_adjustment_animation (GtkTreeView *tree_view)
{
gtk_adjustment_enable_animation (tree_view->priv->vadjustment,
NULL,
gtk_adjustment_get_animation_duration (tree_view->priv->vadjustment));
}
static void
maybe_reenable_adjustment_animation (GtkTreeView *tree_view)
{
if (tree_view->priv->presize_handler_tick_cb != 0 ||
tree_view->priv->validate_rows_timer != 0)
return;
gtk_adjustment_enable_animation (tree_view->priv->vadjustment,
gtk_widget_get_frame_clock (GTK_WIDGET (tree_view)),
gtk_adjustment_get_animation_duration (tree_view->priv->vadjustment));
}
static gboolean
do_presize_handler (GtkTreeView *tree_view)
{
if (tree_view->priv->mark_rows_col_dirty)
{
if (tree_view->priv->tree)
gtk_tree_rbtree_column_invalid (tree_view->priv->tree);
tree_view->priv->mark_rows_col_dirty = FALSE;
}
validate_visible_area (tree_view);
if (tree_view->priv->presize_handler_tick_cb != 0)
{
gtk_widget_remove_tick_callback (GTK_WIDGET (tree_view), tree_view->priv->presize_handler_tick_cb);
tree_view->priv->presize_handler_tick_cb = 0;
}
if (tree_view->priv->fixed_height_mode)
{
GtkRequisition requisition;
gtk_widget_get_preferred_size (GTK_WIDGET (tree_view),
&requisition, NULL);
gtk_adjustment_set_upper (tree_view->priv->hadjustment,
MAX (gtk_adjustment_get_upper (tree_view->priv->hadjustment), requisition.width));
gtk_adjustment_set_upper (tree_view->priv->vadjustment,
MAX (gtk_adjustment_get_upper (tree_view->priv->vadjustment), requisition.height));
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
maybe_reenable_adjustment_animation (tree_view);
return FALSE;
}
static gboolean
presize_handler_callback (GtkWidget *widget,
GdkFrameClock *clock,
gpointer unused)
{
do_presize_handler (GTK_TREE_VIEW (widget));
return G_SOURCE_REMOVE;
}
static gboolean
validate_rows (GtkTreeView *tree_view)
{
gboolean retval;
if (tree_view->priv->presize_handler_tick_cb)
{
do_presize_handler (tree_view);
return G_SOURCE_CONTINUE;
}
retval = do_validate_rows (tree_view, TRUE);
if (! retval && tree_view->priv->validate_rows_timer)
{
g_source_remove (tree_view->priv->validate_rows_timer);
tree_view->priv->validate_rows_timer = 0;
maybe_reenable_adjustment_animation (tree_view);
}
return retval;
}
static void
install_presize_handler (GtkTreeView *tree_view)
{
if (! gtk_widget_get_realized (GTK_WIDGET (tree_view)))
return;
disable_adjustment_animation (tree_view);
if (! tree_view->priv->presize_handler_tick_cb)
{
tree_view->priv->presize_handler_tick_cb =
gtk_widget_add_tick_callback (GTK_WIDGET (tree_view), presize_handler_callback, NULL, NULL);
}
if (! tree_view->priv->validate_rows_timer)
{
tree_view->priv->validate_rows_timer =
g_idle_add_full (GTK_TREE_VIEW_PRIORITY_VALIDATE, (GSourceFunc) validate_rows, tree_view, NULL);
g_source_set_name_by_id (tree_view->priv->validate_rows_timer, "[gtk] validate_rows");
}
}
static gboolean
scroll_sync_handler (GtkTreeView *tree_view)
{
if (gtk_tree_view_get_height (tree_view) <= gtk_adjustment_get_page_size (tree_view->priv->vadjustment))
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
gtk_tree_view_top_row_to_dy (tree_view);
else
gtk_tree_view_dy_to_top_row (tree_view);
tree_view->priv->scroll_sync_timer = 0;
return FALSE;
}
static void
install_scroll_sync_handler (GtkTreeView *tree_view)
{
if (!gtk_widget_get_realized (GTK_WIDGET (tree_view)))
return;
if (!tree_view->priv->scroll_sync_timer)
{
tree_view->priv->scroll_sync_timer =
g_idle_add_full (GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC, (GSourceFunc) scroll_sync_handler, tree_view, NULL);
g_source_set_name_by_id (tree_view->priv->scroll_sync_timer, "[gtk] scroll_sync_handler");
}
}
static void
gtk_tree_view_set_top_row (GtkTreeView *tree_view,
GtkTreePath *path,
gint offset)
{
gtk_tree_row_reference_free (tree_view->priv->top_row);
if (!path)
{
tree_view->priv->top_row = NULL;
tree_view->priv->top_row_dy = 0;
}
else
{
tree_view->priv->top_row = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
tree_view->priv->top_row_dy = offset;
}
}
/* Always call this iff dy is in the visible range. If the tree is empty, then
* it’s set to be NULL, and top_row_dy is 0;
*/
static void
gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view)
{
gint offset;
GtkTreePath *path;
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
if (tree_view->priv->tree == NULL)
{
gtk_tree_view_set_top_row (tree_view, NULL, 0);
}
else
{
offset = gtk_tree_rbtree_find_offset (tree_view->priv->tree,
tree_view->priv->dy,
&tree, &node);
if (tree == NULL)
{
gtk_tree_view_set_top_row (tree_view, NULL, 0);
}
else
{
path = _gtk_tree_path_new_from_rbtree (tree, node);
gtk_tree_view_set_top_row (tree_view, path, offset);
gtk_tree_path_free (path);
}
}
}
static void
gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view)
{
GtkTreePath *path;
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
int new_dy;
/* Avoid recursive calls */
if (tree_view->priv->in_top_row_to_dy)
return;
if (tree_view->priv->top_row)
path = gtk_tree_row_reference_get_path (tree_view->priv->top_row);
else
path = NULL;
if (!path)
tree = NULL;
else
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
if (path)
gtk_tree_path_free (path);
if (tree == NULL)
{
/* keep dy and set new toprow */
gtk_tree_row_reference_free (tree_view->priv->top_row);
tree_view->priv->top_row = NULL;
tree_view->priv->top_row_dy = 0;
/* DO NOT install the idle handler */
gtk_tree_view_dy_to_top_row (tree_view);
return;
}
if (gtk_tree_view_get_row_height (tree_view, node)
< tree_view->priv->top_row_dy)
{
/* new top row -- do NOT install the idle handler */
gtk_tree_view_dy_to_top_row (tree_view);
return;
}
new_dy = gtk_tree_rbtree_node_find_offset (tree, node);
new_dy += tree_view->priv->top_row_dy;
if (new_dy + gtk_adjustment_get_page_size (tree_view->priv->vadjustment) > gtk_tree_view_get_height (tree_view))
new_dy = gtk_tree_view_get_height (tree_view) - gtk_adjustment_get_page_size (tree_view->priv->vadjustment);
new_dy = MAX (0, new_dy);
tree_view->priv->in_top_row_to_dy = TRUE;
gtk_adjustment_set_value (tree_view->priv->vadjustment, (gdouble)new_dy);
tree_view->priv->in_top_row_to_dy = FALSE;
}
void
_gtk_tree_view_install_mark_rows_col_dirty (GtkTreeView *tree_view,
gboolean install_handler)
{
tree_view->priv->mark_rows_col_dirty = TRUE;
if (install_handler)
install_presize_handler (tree_view);
}
/*
* This function works synchronously (due to the while (validate_rows...)
* loop).
*
* There was a check for column_type != GTK_TREE_VIEW_COLUMN_AUTOSIZE
* here. You now need to check that yourself.
*/
void
_gtk_tree_view_column_autosize (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
_gtk_tree_view_column_cell_set_dirty (column, FALSE);
do_presize_handler (tree_view);
while (validate_rows (tree_view));
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
/* Drag-and-drop */
static void
set_source_row (GdkDrag *drag,
GtkTreeModel *model,
GtkTreePath *source_row)
{
g_object_set_data_full (G_OBJECT (drag),
I_("gtk-tree-view-source-row"),
source_row ? gtk_tree_row_reference_new (model, source_row) : NULL,
(GDestroyNotify) (source_row ? gtk_tree_row_reference_free : NULL));
}
static GtkTreePath*
get_source_row (GdkDrag *drag)
{
GtkTreeRowReference *ref =
g_object_get_data (G_OBJECT (drag), "gtk-tree-view-source-row");
if (ref)
return gtk_tree_row_reference_get_path (ref);
else
return NULL;
}
typedef struct
{
GtkTreeRowReference *dest_row;
guint path_down_mode : 1;
guint empty_view_drop : 1;
guint drop_append_mode : 1;
}
DestRow;
static void
dest_row_free (gpointer data)
{
DestRow *dr = (DestRow *)data;
gtk_tree_row_reference_free (dr->dest_row);
g_slice_free (DestRow, dr);
}
static void
set_dest_row (GdkDrop *drop,
GtkTreeModel *model,
GtkTreePath *dest_row,
gboolean path_down_mode,
gboolean empty_view_drop,
gboolean drop_append_mode)
{
DestRow *dr;
if (!dest_row)
{
g_object_set_data_full (G_OBJECT (drop), I_("gtk-tree-view-dest-row"),
NULL, NULL);
return;
}
dr = g_slice_new (DestRow);
dr->dest_row = gtk_tree_row_reference_new (model, dest_row);
dr->path_down_mode = path_down_mode != FALSE;
dr->empty_view_drop = empty_view_drop != FALSE;
dr->drop_append_mode = drop_append_mode != FALSE;
g_object_set_data_full (G_OBJECT (drop), I_("gtk-tree-view-dest-row"),
dr, (GDestroyNotify) dest_row_free);
}
static GtkTreePath*
get_dest_row (GdkDrop *drop,
gboolean *path_down_mode)
{
DestRow *dr =
g_object_get_data (G_OBJECT (drop), "gtk-tree-view-dest-row");
if (dr)
{
GtkTreePath *path = NULL;
if (path_down_mode)
*path_down_mode = dr->path_down_mode;
if (dr->dest_row)
path = gtk_tree_row_reference_get_path (dr->dest_row);
else if (dr->empty_view_drop)
path = gtk_tree_path_new_from_indices (0, -1);
else
path = NULL;
if (path && dr->drop_append_mode)
gtk_tree_path_next (path);
return path;
}
else
return NULL;
}
/* Get/set whether drag_motion requested the drag data and
* drag_data_received should thus not actually insert the data,
* since the data doesn’t result from a drop.
*/
static void
set_status_pending (GdkDrop *drop,
GdkDragAction suggested_action)
{
g_object_set_data (G_OBJECT (drop),
I_("gtk-tree-view-status-pending"),
GINT_TO_POINTER (suggested_action));
}
static GdkDragAction
get_status_pending (GdkDrop *drop)
{
return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (drop),
"gtk-tree-view-status-pending"));
}
static TreeViewDragInfo*
get_info (GtkTreeView *tree_view)
{
return g_object_get_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info");
}
static void
destroy_info (TreeViewDragInfo *di)
{
g_slice_free (TreeViewDragInfo, di);
}
static TreeViewDragInfo*
ensure_info (GtkTreeView *tree_view)
{
TreeViewDragInfo *di;
di = get_info (tree_view);
if (di == NULL)
{
di = g_slice_new0 (TreeViewDragInfo);
g_object_set_data_full (G_OBJECT (tree_view),
I_("gtk-tree-view-drag-info"),
di,
(GDestroyNotify) destroy_info);
}
return di;
}
static void
remove_info (GtkTreeView *tree_view)
{
g_object_set_data (G_OBJECT (tree_view), I_("gtk-tree-view-drag-info"), NULL);
}
static void
add_scroll_timeout (GtkTreeView *tree_view)
{
if (tree_view->priv->scroll_timeout == 0)
{
tree_view->priv->scroll_timeout = g_timeout_add (150, scroll_row_timeout, tree_view);
g_source_set_name_by_id (tree_view->priv->scroll_timeout, "[gtk] scroll_row_timeout");
}
}
static void
remove_scroll_timeout (GtkTreeView *tree_view)
{
if (tree_view->priv->scroll_timeout != 0)
{
g_source_remove (tree_view->priv->scroll_timeout);
tree_view->priv->scroll_timeout = 0;
}
}
static gboolean
check_model_dnd (GtkTreeModel *model,
GType required_iface,
const gchar *signal)
{
if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface))
{
g_warning ("You must override the default '%s' handler "
"on GtkTreeView when using models that don't support "
"the %s interface and enabling drag-and-drop. The simplest way to do this "
"is to connect to '%s' and call "
"g_signal_stop_emission_by_name() in your signal handler to prevent "
"the default handler from running. Look at the source code "
"for the default handler in gtktreeview.c to get an idea what "
"your handler should do. (gtktreeview.c is in the GTK source "
"code.) If you're using GTK from a language other than C, "
"there may be a more natural way to override default handlers, e.g. via derivation.",
signal, g_type_name (required_iface), signal);
return FALSE;
}
else
return TRUE;
}
static void
remove_open_timeout (GtkTreeView *tree_view)
{
if (tree_view->priv->open_dest_timeout != 0)
{
g_source_remove (tree_view->priv->open_dest_timeout);
tree_view->priv->open_dest_timeout = 0;
}
}
static gint
open_row_timeout (gpointer data)
{
GtkTreeView *tree_view = data;
GtkTreePath *dest_path = NULL;
GtkTreeViewDropPosition pos;
gboolean result = FALSE;
gtk_tree_view_get_drag_dest_row (tree_view,
&dest_path,
&pos);
if (dest_path &&
(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
{
gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
tree_view->priv->open_dest_timeout = 0;
gtk_tree_path_free (dest_path);
}
else
{
if (dest_path)
gtk_tree_path_free (dest_path);
result = TRUE;
}
return result;
}
static gboolean
scroll_row_timeout (gpointer data)
{
GtkTreeView *tree_view = data;
gtk_tree_view_vertical_autoscroll (tree_view);
if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
gtk_tree_view_update_rubber_band (tree_view);
return TRUE;
}
/* Returns TRUE if event should not be propagated to parent widgets */
static gboolean
set_destination_row (GtkTreeView *tree_view,
GdkDrop *drop,
/* coordinates relative to the widget */
gint x,
gint y,
GdkDragAction *suggested_action,
GdkAtom *target)
{
GtkTreePath *path = NULL;
GtkTreeViewDropPosition pos;
GtkTreeViewDropPosition old_pos;
TreeViewDragInfo *di;
GtkWidget *widget;
GtkTreePath *old_dest_path = NULL;
gboolean can_drop = FALSE;
*suggested_action = 0;
*target = NULL;
widget = GTK_WIDGET (tree_view);
di = get_info (tree_view);
if (di == NULL || y - gtk_tree_view_get_effective_header_height (tree_view) < 0)
{
/* someone unset us as a drag dest, note that if
* we return FALSE drag_leave isn't called
*/
gtk_tree_view_set_drag_dest_row (tree_view,
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
remove_scroll_timeout (GTK_TREE_VIEW (widget));
remove_open_timeout (GTK_TREE_VIEW (widget));
return FALSE; /* no longer a drop site */
}
*target = gtk_drag_dest_find_target (widget, drop,
gtk_drag_dest_get_target_list (widget));
if (*target == NULL)
{
return FALSE;
}
if (!gtk_tree_view_get_dest_row_at_pos (tree_view,
x, y,
&path,
&pos))
{
gint n_children;
GtkTreeModel *model;
remove_open_timeout (tree_view);
/* the row got dropped on empty space, let's setup a special case
*/
if (path)
gtk_tree_path_free (path);
model = gtk_tree_view_get_model (tree_view);
n_children = gtk_tree_model_iter_n_children (model, NULL);
if (n_children)
{
pos = GTK_TREE_VIEW_DROP_AFTER;
path = gtk_tree_path_new_from_indices (n_children - 1, -1);
}
else
{
pos = GTK_TREE_VIEW_DROP_BEFORE;
path = gtk_tree_path_new_from_indices (0, -1);
}
can_drop = TRUE;
goto out;
}
g_assert (path);
/* If we left the current row's "open" zone, unset the timeout for
* opening the row
*/
gtk_tree_view_get_drag_dest_row (tree_view,
&old_dest_path,
&old_pos);
if (old_dest_path &&
(gtk_tree_path_compare (path, old_dest_path) != 0 ||
!(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)))
remove_open_timeout (tree_view);
if (old_dest_path)
gtk_tree_path_free (old_dest_path);
if (TRUE /* FIXME if the location droppable predicate */)
{
can_drop = TRUE;
}
out:
if (can_drop)
{
*suggested_action = GDK_ACTION_COPY | GDK_ACTION_MOVE;
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
path, pos);
}
else
{
/* can't drop here */
remove_open_timeout (tree_view);
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
}
if (path)
gtk_tree_path_free (path);
return TRUE;
}
static GtkTreePath*
get_logical_dest_row (GtkTreeView *tree_view,
gboolean *path_down_mode,
gboolean *drop_append_mode)
{
/* adjust path to point to the row the drop goes in front of */
GtkTreePath *path = NULL;
GtkTreeViewDropPosition pos;
g_return_val_if_fail (path_down_mode != NULL, NULL);
g_return_val_if_fail (drop_append_mode != NULL, NULL);
*path_down_mode = FALSE;
*drop_append_mode = 0;
gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
if (path == NULL)
return NULL;
if (pos == GTK_TREE_VIEW_DROP_BEFORE)
; /* do nothing */
else if (pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE ||
pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER)
*path_down_mode = TRUE;
else
{
GtkTreeIter iter;
GtkTreeModel *model = gtk_tree_view_get_model (tree_view);
g_assert (pos == GTK_TREE_VIEW_DROP_AFTER);
if (!gtk_tree_model_get_iter (model, &iter, path) ||
!gtk_tree_model_iter_next (model, &iter))
*drop_append_mode = 1;
else
{
*drop_append_mode = 0;
gtk_tree_path_next (path);
}
}
return path;
}
static gboolean
gtk_tree_view_maybe_begin_dragging_row (GtkTreeView *tree_view)
{
GtkWidget *widget = GTK_WIDGET (tree_view);
gdouble start_x, start_y, offset_x, offset_y;
GdkDrag *drag;
TreeViewDragInfo *di;
GtkTreePath *path = NULL;
gint button;
GtkTreeModel *model;
gboolean retval = FALSE;
gint bin_x, bin_y;
di = get_info (tree_view);
if (di == NULL || !di->source_set)
goto out;
if (!gtk_gesture_is_recognized (tree_view->priv->drag_gesture))
goto out;
gtk_gesture_drag_get_start_point (GTK_GESTURE_DRAG (tree_view->priv->drag_gesture),
&start_x, &start_y);
gtk_gesture_drag_get_offset (GTK_GESTURE_DRAG (tree_view->priv->drag_gesture),
&offset_x, &offset_y);
if (!gtk_drag_check_threshold (widget, 0, 0, offset_x, offset_y))
goto out;
model = gtk_tree_view_get_model (tree_view);
if (model == NULL)
goto out;
button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (tree_view->priv->drag_gesture));
/* Deny the click gesture */
gtk_gesture_set_state (GTK_GESTURE (tree_view->priv->click_gesture),
GTK_EVENT_SEQUENCE_DENIED);
gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, start_x, start_y,
&bin_x, &bin_y);
gtk_tree_view_get_path_at_pos (tree_view, bin_x, bin_y, &path,
NULL, NULL, NULL);
if (path == NULL)
goto out;
if (!GTK_IS_TREE_DRAG_SOURCE (model) ||
!gtk_tree_drag_source_row_draggable (GTK_TREE_DRAG_SOURCE (model),
path))
goto out;
if (!(GDK_BUTTON1_MASK << (button - 1) & di->start_button_mask))
goto out;
retval = TRUE;
/* Now we can begin the drag */
gtk_gesture_set_state (GTK_GESTURE (tree_view->priv->drag_gesture),
GTK_EVENT_SEQUENCE_CLAIMED);
drag = gtk_drag_begin (widget,
gtk_gesture_get_device (GTK_GESTURE (tree_view->priv->drag_gesture)),
gtk_drag_source_get_target_list (widget),
di->source_actions,
start_x, start_y);
set_source_row (drag, model, path);
out:
if (path)
gtk_tree_path_free (path);
return retval;
}
static void
gtk_tree_view_drag_begin (GtkWidget *widget,
GdkDrag *drag)
{
GtkTreeView *tree_view;
GtkTreePath *path = NULL;
gint cell_x, cell_y;
GdkPaintable *row_pix;
TreeViewDragInfo *di;
tree_view = GTK_TREE_VIEW (widget);
/* if the user uses a custom DND source impl, we don't set the icon here */
di = get_info (tree_view);
if (di == NULL || !di->source_set)
return;
gtk_tree_view_get_path_at_pos (tree_view,
tree_view->priv->press_start_x,
tree_view->priv->press_start_y,
&path,
NULL,
&cell_x,
&cell_y);
/* If path is NULL, there's nothing we can drag. For now, we silently
* bail out. Actually, dragging should not be possible from an empty
* tree view, but there's no way we can cancel that from here.
* Automatically unsetting the tree view as drag source for empty models
* is something that would likely break other people's code ...
*/
if (!path)
return;
row_pix = gtk_tree_view_create_row_drag_icon (tree_view, path);
gtk_drag_set_icon_paintable (drag, row_pix, tree_view->priv->press_start_x + 1, 1);
g_object_unref (row_pix);
gtk_tree_path_free (path);
}
static void
gtk_tree_view_drag_end (GtkWidget *widget,
GdkDrag *drag)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
tree_view->priv->event_last_x = -10000;
tree_view->priv->event_last_y = -10000;
}
/* Default signal implementations for the drag signals */
static void
gtk_tree_view_drag_data_get (GtkWidget *widget,
GdkDrag *drag,
GtkSelectionData *selection_data)
{
GtkTreeView *tree_view;
GtkTreeModel *model;
TreeViewDragInfo *di;
GtkTreePath *source_row;
tree_view = GTK_TREE_VIEW (widget);
model = gtk_tree_view_get_model (tree_view);
if (model == NULL)
return;
di = get_info (GTK_TREE_VIEW (widget));
if (di == NULL)
return;
source_row = get_source_row (drag);
if (source_row == NULL)
return;
/* We can implement the GTK_TREE_MODEL_ROW target generically for
* any model; for DragSource models there are some other targets
* we also support.
*/
if (GTK_IS_TREE_DRAG_SOURCE (model) &&
gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model),
source_row,
selection_data))
goto done;
/* If drag_data_get does nothing, try providing row data. */
if (gtk_selection_data_get_target (selection_data) == g_intern_static_string ("GTK_TREE_MODEL_ROW"))
{
gtk_tree_set_row_drag_data (selection_data,
model,
source_row);
}
done:
gtk_tree_path_free (source_row);
}
static void
gtk_tree_view_drag_data_delete (GtkWidget *widget,
GdkDrag *drag)
{
TreeViewDragInfo *di;
GtkTreeModel *model;
GtkTreeView *tree_view;
GtkTreePath *source_row;
tree_view = GTK_TREE_VIEW (widget);
model = gtk_tree_view_get_model (tree_view);
if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete"))
return;
di = get_info (tree_view);
if (di == NULL)
return;
source_row = get_source_row (drag);
if (source_row == NULL)
return;
gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model), source_row);
gtk_tree_path_free (source_row);
set_source_row (drag, NULL, NULL);
}
static void
gtk_tree_view_drag_leave (GtkWidget *widget,
GdkDrop *drop)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
/* unset any highlight row */
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
remove_scroll_timeout (GTK_TREE_VIEW (widget));
remove_open_timeout (GTK_TREE_VIEW (widget));
tree_view->priv->event_last_x = -10000;
tree_view->priv->event_last_y = -10000;
}
static gboolean
gtk_tree_view_drag_motion (GtkWidget *widget,
GdkDrop *drop,
gint x,
gint y)
{
gboolean empty;
GtkTreePath *path = NULL;
GtkTreeViewDropPosition pos;
GtkTreeView *tree_view;
GdkDragAction suggested_action = 0;
GdkAtom target;
tree_view = GTK_TREE_VIEW (widget);
if (!set_destination_row (tree_view, drop, x, y, &suggested_action, &target))
return FALSE;
tree_view->priv->event_last_x = x;
tree_view->priv->event_last_y = y;
gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
/* we only know this *after* set_desination_row */
empty = tree_view->priv->empty_view_drop;
if (path == NULL && !empty)
{
/* Can't drop here. */
gdk_drop_status (drop, 0);
}
else
{
if (tree_view->priv->open_dest_timeout == 0 &&
(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
{
tree_view->priv->open_dest_timeout =
g_timeout_add (AUTO_EXPAND_TIMEOUT, open_row_timeout, tree_view);
g_source_set_name_by_id (tree_view->priv->open_dest_timeout, "[gtk] open_row_timeout");
}
else
{
add_scroll_timeout (tree_view);
}
if (target == g_intern_static_string ("GTK_TREE_MODEL_ROW"))
{
/* Request data so we can use the source row when
* determining whether to accept the drop
*/
set_status_pending (drop, suggested_action);
gtk_drag_get_data (widget, drop, target);
}
else
{
set_status_pending (drop, 0);
gdk_drop_status (drop, suggested_action);
}
}
if (path)
gtk_tree_path_free (path);
return TRUE;
}
static gboolean
gtk_tree_view_drag_drop (GtkWidget *widget,
GdkDrop *drop,
gint x,
gint y)
{
GtkTreeView *tree_view;
GtkTreePath *path;
GdkDragAction suggested_action = 0;
GdkAtom target = NULL;
TreeViewDragInfo *di;
GtkTreeModel *model;
gboolean path_down_mode;
gboolean drop_append_mode;
tree_view = GTK_TREE_VIEW (widget);
model = gtk_tree_view_get_model (tree_view);
remove_scroll_timeout (GTK_TREE_VIEW (widget));
remove_open_timeout (GTK_TREE_VIEW (widget));
di = get_info (tree_view);
if (di == NULL)
return FALSE;
if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop"))
return FALSE;
if (!set_destination_row (tree_view, drop, x, y, &suggested_action, &target))
return FALSE;
path = get_logical_dest_row (tree_view, &path_down_mode, &drop_append_mode);
if (target != NULL && path != NULL)
{
/* in case a motion had requested drag data, change things so we
* treat drag data receives as a drop.
*/
set_status_pending (drop, 0);
set_dest_row (drop, model, path,
path_down_mode, tree_view->priv->empty_view_drop,
drop_append_mode);
}
if (path)
gtk_tree_path_free (path);
/* Unset this thing */
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
if (target != NULL)
{
gtk_drag_get_data (widget, drop, target);
return TRUE;
}
else
return FALSE;
}
static GdkDragAction
gtk_tree_view_get_action (GtkWidget *treeview,
GdkDrop *drop)
{
GdkDrag *drag = gdk_drop_get_drag (drop);
GtkWidget *source_widget = gtk_drag_get_source_widget (drag);
GdkDragAction actions;
actions = gdk_drop_get_actions (drop);
if (source_widget == treeview &&
actions & GDK_ACTION_MOVE)
return GDK_ACTION_MOVE;
if (actions & GDK_ACTION_COPY)
return GDK_ACTION_COPY;
if (actions & GDK_ACTION_MOVE)
return GDK_ACTION_MOVE;
return 0;
}
static void
gtk_tree_view_drag_data_received (GtkWidget *widget,
GdkDrop *drop,
GtkSelectionData *selection_data)
{
GtkTreePath *path;
TreeViewDragInfo *di;
GtkTreeModel *model;
GtkTreeView *tree_view;
GtkTreePath *dest_row;
GdkDragAction suggested_action;
gboolean path_down_mode;
gboolean drop_append_mode;
tree_view = GTK_TREE_VIEW (widget);
model = gtk_tree_view_get_model (tree_view);
if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received"))
return;
di = get_info (tree_view);
if (di == NULL)
return;
suggested_action = get_status_pending (drop);
if (suggested_action)
{
/* We are getting this data due to a request in drag_motion,
* rather than due to a request in drag_drop, so we are just
* supposed to call drag_status, not actually paste in the
* data.
*/
path = get_logical_dest_row (tree_view, &path_down_mode,
&drop_append_mode);
if (path == NULL)
suggested_action = 0;
else if (path_down_mode)
gtk_tree_path_down (path);
if (suggested_action)
{
if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
path,
selection_data))
{
if (path_down_mode)
{
path_down_mode = FALSE;
gtk_tree_path_up (path);
if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
path,
selection_data))
suggested_action = 0;
}
else
suggested_action = 0;
}
}
gdk_drop_status (drop, suggested_action);
if (path)
gtk_tree_path_free (path);
/* If you can't drop, remove user drop indicator until the next motion */
if (suggested_action == 0)
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
return;
}
dest_row = get_dest_row (drop, &path_down_mode);
if (dest_row == NULL)
return;
if (gtk_selection_data_get_length (selection_data) >= 0)
{
if (path_down_mode)
{
gtk_tree_path_down (dest_row);
if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
dest_row, selection_data))
gtk_tree_path_up (dest_row);
}
}
if (gtk_selection_data_get_length (selection_data) >= 0)
{
suggested_action = gtk_tree_view_get_action (widget, drop);
if (suggested_action &&
!gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
dest_row,
selection_data))
suggested_action = 0;
}
gdk_drop_finish (drop, suggested_action);
if (gtk_tree_path_get_depth (dest_row) == 1 &&
gtk_tree_path_get_indices (dest_row)[0] == 0 &&
gtk_tree_model_iter_n_children (tree_view->priv->model, NULL) != 0)
{
/* special special case drag to "0", scroll to first item */
if (!tree_view->priv->scroll_to_path)
gtk_tree_view_scroll_to_cell (tree_view, dest_row, NULL, FALSE, 0.0, 0.0);
}
gtk_tree_path_free (dest_row);
/* drop dest_row */
set_dest_row (drop, NULL, NULL, FALSE, FALSE, FALSE);
}
/* GtkContainer Methods
*/
static void
gtk_tree_view_remove (GtkContainer *container,
GtkWidget *widget)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (container);
GtkTreeViewChild *child = NULL;
GList *tmp_list;
tmp_list = tree_view->priv->children;
while (tmp_list)
{
child = tmp_list->data;
if (child->widget == widget)
{
gtk_widget_unparent (widget);
tree_view->priv->children = g_list_remove_link (tree_view->priv->children, tmp_list);
g_list_free_1 (tmp_list);
g_slice_free (GtkTreeViewChild, child);
return;
}
tmp_list = tmp_list->next;
}
tmp_list = tree_view->priv->columns;
while (tmp_list)
{
GtkTreeViewColumn *column;
GtkWidget *button;
column = tmp_list->data;
button = gtk_tree_view_column_get_button (column);
if (button == widget)
{
gtk_widget_unparent (widget);
return;
}
tmp_list = tmp_list->next;
}
}
static void
gtk_tree_view_forall (GtkContainer *container,
GtkCallback callback,
gpointer callback_data)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (container);
GtkTreeViewChild *child = NULL;
GList *tmp_list;
tmp_list = tree_view->priv->children;
while (tmp_list)
{
child = tmp_list->data;
tmp_list = tmp_list->next;
(* callback) (child->widget, callback_data);
}
}
/* Returns TRUE is any of the columns contains a cell that can-focus.
* If this is not the case, a column-spanning focus rectangle will be
* drawn.
*/
static gboolean
gtk_tree_view_has_can_focus_cell (GtkTreeView *tree_view)
{
GList *list;
for (list = tree_view->priv->columns; list; list = list->next)
{
GtkTreeViewColumn *column = list->data;
if (!gtk_tree_view_column_get_visible (column))
continue;
if (gtk_cell_area_is_activatable (gtk_cell_layout_get_area (GTK_CELL_LAYOUT (column))))
return TRUE;
}
return FALSE;
}
static void
column_sizing_notify (GObject *object,
GParamSpec *pspec,
gpointer data)
{
GtkTreeViewColumn *c = GTK_TREE_VIEW_COLUMN (object);
if (gtk_tree_view_column_get_sizing (c) != GTK_TREE_VIEW_COLUMN_FIXED)
/* disable fixed height mode */
g_object_set (data, "fixed-height-mode", FALSE, NULL);
}
/**
* gtk_tree_view_set_fixed_height_mode:
* @tree_view: a #GtkTreeView
* @enable: %TRUE to enable fixed height mode
*
* Enables or disables the fixed height mode of @tree_view.
* Fixed height mode speeds up #GtkTreeView by assuming that all
* rows have the same height.
* Only enable this option if all rows are the same height and all
* columns are of type %GTK_TREE_VIEW_COLUMN_FIXED.
**/
void
gtk_tree_view_set_fixed_height_mode (GtkTreeView *tree_view,
gboolean enable)
{
GList *l;
enable = enable != FALSE;
if (enable == tree_view->priv->fixed_height_mode)
return;
if (!enable)
{
tree_view->priv->fixed_height_mode = 0;
tree_view->priv->fixed_height = -1;
}
else
{
/* make sure all columns are of type FIXED */
for (l = tree_view->priv->columns; l; l = l->next)
{
GtkTreeViewColumn *c = l->data;
g_return_if_fail (gtk_tree_view_column_get_sizing (c) == GTK_TREE_VIEW_COLUMN_FIXED);
}
/* yes, we really have to do this is in a separate loop */
for (l = tree_view->priv->columns; l; l = l->next)
g_signal_connect (l->data, "notify::sizing",
G_CALLBACK (column_sizing_notify), tree_view);
tree_view->priv->fixed_height_mode = 1;
tree_view->priv->fixed_height = -1;
}
/* force a revalidation */
install_presize_handler (tree_view);
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_FIXED_HEIGHT_MODE]);
}
/**
* gtk_tree_view_get_fixed_height_mode:
* @tree_view: a #GtkTreeView
*
* Returns whether fixed height mode is turned on for @tree_view.
*
* Returns: %TRUE if @tree_view is in fixed height mode
**/
gboolean
gtk_tree_view_get_fixed_height_mode (GtkTreeView *tree_view)
{
return tree_view->priv->fixed_height_mode;
}
/* Returns TRUE if the focus is within the headers, after the focus operation is
* done
*/
static gboolean
gtk_tree_view_header_focus (GtkTreeView *tree_view,
GtkDirectionType dir,
gboolean clamp_column_visible)
{
GtkTreeViewColumn *column;
GtkWidget *button;
GtkWidget *focus_child;
GList *last_column, *first_column;
GList *tmp_list;
gboolean rtl;
if (! tree_view->priv->headers_visible)
return FALSE;
focus_child = gtk_widget_get_focus_child (GTK_WIDGET (tree_view));
first_column = tree_view->priv->columns;
while (first_column)
{
column = GTK_TREE_VIEW_COLUMN (first_column->data);
button = gtk_tree_view_column_get_button (column);
if (gtk_widget_get_can_focus (button) &&
gtk_tree_view_column_get_visible (column) &&
(gtk_tree_view_column_get_clickable (column) ||
gtk_tree_view_column_get_reorderable (column)))
break;
first_column = first_column->next;
}
/* No headers are visible, or are focusable. We can't focus in or out.
*/
if (first_column == NULL)
return FALSE;
last_column = g_list_last (tree_view->priv->columns);
while (last_column)
{
column = GTK_TREE_VIEW_COLUMN (last_column->data);
button = gtk_tree_view_column_get_button (column);
if (gtk_widget_get_can_focus (button) &&
gtk_tree_view_column_get_visible (column) &&
(gtk_tree_view_column_get_clickable (column) ||
gtk_tree_view_column_get_reorderable (column)))
break;
last_column = last_column->prev;
}
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
switch (dir)
{
case GTK_DIR_TAB_BACKWARD:
case GTK_DIR_TAB_FORWARD:
case GTK_DIR_UP:
case GTK_DIR_DOWN:
if (focus_child == NULL)
{
if (tree_view->priv->focus_column != NULL)
button = gtk_tree_view_column_get_button (tree_view->priv->focus_column);
else
button = NULL;
if (button && gtk_widget_get_can_focus (button))
focus_child = button;
else
focus_child = gtk_tree_view_column_get_button (GTK_TREE_VIEW_COLUMN (first_column->data));
gtk_widget_grab_focus (focus_child);
break;
}
return FALSE;
case GTK_DIR_LEFT:
case GTK_DIR_RIGHT:
if (focus_child == NULL)
{
if (tree_view->priv->focus_column != NULL)
focus_child = gtk_tree_view_column_get_button (tree_view->priv->focus_column);
else if (dir == GTK_DIR_LEFT)
focus_child = gtk_tree_view_column_get_button (GTK_TREE_VIEW_COLUMN (last_column->data));
else
focus_child = gtk_tree_view_column_get_button (GTK_TREE_VIEW_COLUMN (first_column->data));
gtk_widget_grab_focus (focus_child);
break;
}
if (gtk_widget_child_focus (focus_child, dir))
{
/* The focus moves inside the button. */
/* This is probably a great example of bad UI */
break;
}
/* We need to move the focus among the row of buttons. */
for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
if (gtk_tree_view_column_get_button (GTK_TREE_VIEW_COLUMN (tmp_list->data)) == focus_child)
break;
if ((tmp_list == first_column && dir == (rtl ? GTK_DIR_RIGHT : GTK_DIR_LEFT))
|| (tmp_list == last_column && dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT)))
{
gtk_widget_error_bell (GTK_WIDGET (tree_view));
break;
}
while (tmp_list)
{
if (dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT))
tmp_list = tmp_list->next;
else
tmp_list = tmp_list->prev;
if (tmp_list == NULL)
{
g_warning ("Internal button not found");
break;
}
column = tmp_list->data;
button = gtk_tree_view_column_get_button (column);
if (button &&
gtk_tree_view_column_get_visible (column) &&
gtk_widget_get_can_focus (button))
{
focus_child = button;
gtk_widget_grab_focus (button);
break;
}
}
break;
default:
g_assert_not_reached ();
break;
}
/* if focus child is non-null, we assume it's been set to the current focus child
*/
if (focus_child)
{
for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
if (gtk_tree_view_column_get_button (GTK_TREE_VIEW_COLUMN (tmp_list->data)) == focus_child)
{
_gtk_tree_view_set_focus_column (tree_view, GTK_TREE_VIEW_COLUMN (tmp_list->data));
break;
}
if (clamp_column_visible)
{
gtk_tree_view_clamp_column_visible (tree_view,
tree_view->priv->focus_column,
FALSE);
}
}
return (focus_child != NULL);
}
/* This function returns in 'path' the first focusable path, if the given path
* is already focusable, it’s the returned one.
*/
static gboolean
search_first_focusable_path (GtkTreeView *tree_view,
GtkTreePath **path,
gboolean search_forward,
GtkTreeRBTree **new_tree,
GtkTreeRBNode **new_node)
{
GtkTreeRBTree *tree = NULL;
GtkTreeRBNode *node = NULL;
if (!path || !*path)
return FALSE;
_gtk_tree_view_find_node (tree_view, *path, &tree, &node);
if (!tree || !node)
return FALSE;
while (node && row_is_separator (tree_view, NULL, *path))
{
if (search_forward)
gtk_tree_rbtree_next_full (tree, node, &tree, &node);
else
gtk_tree_rbtree_prev_full (tree, node, &tree, &node);
if (*path)
gtk_tree_path_free (*path);
if (node)
*path = _gtk_tree_path_new_from_rbtree (tree, node);
else
*path = NULL;
}
if (new_tree)
*new_tree = tree;
if (new_node)
*new_node = node;
return (*path != NULL);
}
static gint
gtk_tree_view_focus (GtkWidget *widget,
GtkDirectionType direction)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GtkWidget *focus_child;
if (!gtk_widget_is_sensitive (widget) || !gtk_widget_get_can_focus (widget))
return FALSE;
focus_child = gtk_widget_get_focus_child (widget);
gtk_tree_view_stop_editing (GTK_TREE_VIEW (widget), FALSE);
/* Case 1. Headers currently have focus. */
if (focus_child)
{
switch (direction)
{
case GTK_DIR_LEFT:
case GTK_DIR_RIGHT:
gtk_tree_view_header_focus (tree_view, direction, TRUE);
return TRUE;
case GTK_DIR_TAB_BACKWARD:
case GTK_DIR_UP:
return FALSE;
case GTK_DIR_TAB_FORWARD:
case GTK_DIR_DOWN:
gtk_widget_grab_focus (widget);
return TRUE;
default:
g_assert_not_reached ();
return FALSE;
}
}
/* Case 2. We don't have focus at all. */
if (!gtk_widget_has_focus (widget))
{
gtk_widget_grab_focus (widget);
return TRUE;
}
/* Case 3. We have focus already. */
if (direction == GTK_DIR_TAB_BACKWARD)
return (gtk_tree_view_header_focus (tree_view, direction, FALSE));
else if (direction == GTK_DIR_TAB_FORWARD)
return FALSE;
/* Other directions caught by the keybindings */
gtk_widget_grab_focus (widget);
return TRUE;
}
static void
gtk_tree_view_grab_focus (GtkWidget *widget)
{
GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->grab_focus (widget);
gtk_tree_view_focus_to_cursor (GTK_TREE_VIEW (widget));
}
static void
gtk_tree_view_style_updated (GtkWidget *widget)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GtkTreeViewPrivate *priv = gtk_tree_view_get_instance_private (tree_view);
GList *list;
GtkTreeViewColumn *column;
GtkStyleContext *style_context;
GtkCssStyleChange *change;
GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->style_updated (widget);
if (gtk_widget_get_realized (widget))
{
gtk_tree_view_set_grid_lines (tree_view, priv->grid_lines);
gtk_tree_view_set_enable_tree_lines (tree_view, priv->tree_lines_enabled);
}
style_context = gtk_widget_get_style_context (widget);
change = gtk_style_context_get_change (style_context);
if (change == NULL || gtk_css_style_change_affects (change, GTK_CSS_AFFECTS_SIZE))
{
for (list = priv->columns; list; list = list->next)
{
column = list->data;
_gtk_tree_view_column_cell_set_dirty (column, TRUE);
}
priv->fixed_height = -1;
gtk_tree_rbtree_mark_invalid (priv->tree);
}
/* Invalidate expander size */
priv->expander_size = -1;
}
static gboolean
gtk_tree_view_real_move_cursor (GtkTreeView *tree_view,
GtkMovementStep step,
gint count)
{
GdkModifierType state;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
step == GTK_MOVEMENT_VISUAL_POSITIONS ||
step == GTK_MOVEMENT_DISPLAY_LINES ||
step == GTK_MOVEMENT_PAGES ||
step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);
if (tree_view->priv->tree == NULL)
return FALSE;
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return FALSE;
gtk_tree_view_stop_editing (tree_view, FALSE);
tree_view->priv->draw_keyfocus = TRUE;
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
if (gtk_get_current_event_state (&state))
{
GdkModifierType extend_mod_mask;
GdkModifierType modify_mod_mask;
extend_mod_mask =
gtk_widget_get_modifier_mask (GTK_WIDGET (tree_view),
GDK_MODIFIER_INTENT_EXTEND_SELECTION);
modify_mod_mask =
gtk_widget_get_modifier_mask (GTK_WIDGET (tree_view),
GDK_MODIFIER_INTENT_MODIFY_SELECTION);
if ((state & modify_mod_mask) == modify_mod_mask)
tree_view->priv->modify_selection_pressed = TRUE;
if ((state & extend_mod_mask) == extend_mod_mask)
tree_view->priv->extend_selection_pressed = TRUE;
}
/* else we assume not pressed */
switch (step)
{
/* currently we make no distinction. When we go bi-di, we need to */
case GTK_MOVEMENT_LOGICAL_POSITIONS:
case GTK_MOVEMENT_VISUAL_POSITIONS:
gtk_tree_view_move_cursor_left_right (tree_view, count);
break;
case GTK_MOVEMENT_DISPLAY_LINES:
gtk_tree_view_move_cursor_up_down (tree_view, count);
break;
case GTK_MOVEMENT_PAGES:
gtk_tree_view_move_cursor_page_up_down (tree_view, count);
break;
case GTK_MOVEMENT_BUFFER_ENDS:
gtk_tree_view_move_cursor_start_end (tree_view, count);
break;
case GTK_MOVEMENT_WORDS:
case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
case GTK_MOVEMENT_PARAGRAPHS:
case GTK_MOVEMENT_PARAGRAPH_ENDS:
case GTK_MOVEMENT_HORIZONTAL_PAGES:
default:
g_assert_not_reached ();
}
tree_view->priv->modify_selection_pressed = FALSE;
tree_view->priv->extend_selection_pressed = FALSE;
return TRUE;
}
static void
gtk_tree_view_put (GtkTreeView *tree_view,
GtkWidget *child_widget,
GtkTreePath *path,
GtkTreeViewColumn *column,
const GtkBorder *border)
{
GtkTreeViewChild *child;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (GTK_IS_WIDGET (child_widget));
child = g_slice_new (GtkTreeViewChild);
child->widget = child_widget;
if (_gtk_tree_view_find_node (tree_view,
path,
&child->tree,
&child->node))
{
g_assert_not_reached ();
}
child->column = column;
child->border = *border;
tree_view->priv->children = g_list_append (tree_view->priv->children, child);
gtk_widget_set_parent (child_widget, GTK_WIDGET (tree_view));
}
/* TreeModel Callbacks
*/
static void
gtk_tree_view_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *)data;
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
gboolean free_path = FALSE;
GList *list;
GtkTreePath *cursor_path;
g_return_if_fail (path != NULL || iter != NULL);
if (tree_view->priv->cursor_node != NULL)
cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->priv->cursor_tree,
tree_view->priv->cursor_node);
else
cursor_path = NULL;
if (tree_view->priv->edited_column &&
(cursor_path == NULL || gtk_tree_path_compare (cursor_path, path) == 0))
gtk_tree_view_stop_editing (tree_view, TRUE);
if (cursor_path != NULL)
gtk_tree_path_free (cursor_path);
if (path == NULL)
{
path = gtk_tree_model_get_path (model, iter);
free_path = TRUE;
}
else if (iter == NULL)
gtk_tree_model_get_iter (model, iter, path);
if (_gtk_tree_view_find_node (tree_view,
path,
&tree,
&node))
/* We aren't actually showing the node */
goto done;
if (tree == NULL)
goto done;
_gtk_tree_view_accessible_changed (tree_view, tree, node);
if (tree_view->priv->fixed_height_mode
&& tree_view->priv->fixed_height >= 0)
{
gtk_tree_rbtree_node_set_height (tree, node, tree_view->priv->fixed_height);
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
else
{
gtk_tree_rbtree_node_mark_invalid (tree, node);
for (list = tree_view->priv->columns; list; list = list->next)
{
GtkTreeViewColumn *column;
column = list->data;
if (!gtk_tree_view_column_get_visible (column))
continue;
if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
{
_gtk_tree_view_column_cell_set_dirty (column, TRUE);
}
}
}
done:
if (!tree_view->priv->fixed_height_mode &&
gtk_widget_get_realized (GTK_WIDGET (tree_view)))
install_presize_handler (tree_view);
if (free_path)
gtk_tree_path_free (path);
}
static void
gtk_tree_view_row_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *) data;
gint *indices;
GtkTreeRBTree *tree;
GtkTreeRBNode *tmpnode = NULL;
gint depth;
gint i = 0;
gint height;
gboolean free_path = FALSE;
gboolean node_visible = TRUE;
g_return_if_fail (path != NULL || iter != NULL);
if (tree_view->priv->fixed_height_mode
&& tree_view->priv->fixed_height >= 0)
height = tree_view->priv->fixed_height;
else
height = 0;
if (path == NULL)
{
path = gtk_tree_model_get_path (model, iter);
free_path = TRUE;
}
else if (iter == NULL)
gtk_tree_model_get_iter (model, iter, path);
if (tree_view->priv->tree == NULL)
tree_view->priv->tree = gtk_tree_rbtree_new ();
tree = tree_view->priv->tree;
/* Update all row-references */
gtk_tree_row_reference_inserted (G_OBJECT (data), path);
depth = gtk_tree_path_get_depth (path);
indices = gtk_tree_path_get_indices (path);
/* First, find the parent tree */
while (i < depth - 1)
{
if (tree == NULL)
{
/* We aren't showing the node */
node_visible = FALSE;
goto done;
}
tmpnode = gtk_tree_rbtree_find_count (tree, indices[i] + 1);
if (tmpnode == NULL)
{
g_warning ("A node was inserted with a parent that's not in the tree.\n" \
"This possibly means that a GtkTreeModel inserted a child node\n" \
"before the parent was inserted.");
goto done;
}
else if (!GTK_TREE_RBNODE_FLAG_SET (tmpnode, GTK_TREE_RBNODE_IS_PARENT))
{
/* FIXME enforce correct behavior on model, probably */
/* In theory, the model should have emitted has_child_toggled here. We
* try to catch it anyway, just to be safe, in case the model hasn't.
*/
GtkTreePath *tmppath = _gtk_tree_path_new_from_rbtree (tree, tmpnode);
gtk_tree_view_row_has_child_toggled (model, tmppath, NULL, data);
gtk_tree_path_free (tmppath);
goto done;
}
tree = tmpnode->children;
i++;
}
if (tree == NULL)
{
node_visible = FALSE;
goto done;
}
/* ref the node */
gtk_tree_model_ref_node (tree_view->priv->model, iter);
if (indices[depth - 1] == 0)
{
tmpnode = gtk_tree_rbtree_find_count (tree, 1);
tmpnode = gtk_tree_rbtree_insert_before (tree, tmpnode, height, FALSE);
}
else
{
tmpnode = gtk_tree_rbtree_find_count (tree, indices[depth - 1]);
tmpnode = gtk_tree_rbtree_insert_after (tree, tmpnode, height, FALSE);
}
_gtk_tree_view_accessible_add (tree_view, tree, tmpnode);
done:
if (height > 0)
{
if (tree)
gtk_tree_rbtree_node_mark_valid (tree, tmpnode);
if (node_visible && node_is_visible (tree_view, tree, tmpnode))
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
else
gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
}
else
install_presize_handler (tree_view);
if (free_path)
gtk_tree_path_free (path);
}
static void
gtk_tree_view_row_has_child_toggled (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *)data;
GtkTreeIter real_iter;
gboolean has_child;
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
gboolean free_path = FALSE;
g_return_if_fail (path != NULL || iter != NULL);
if (iter)
real_iter = *iter;
if (path == NULL)
{
path = gtk_tree_model_get_path (model, iter);
free_path = TRUE;
}
else if (iter == NULL)
gtk_tree_model_get_iter (model, &real_iter, path);
if (_gtk_tree_view_find_node (tree_view,
path,
&tree,
&node))
/* We aren't actually showing the node */
goto done;
if (tree == NULL)
goto done;
has_child = gtk_tree_model_iter_has_child (model, &real_iter);
/* Sanity check.
*/
if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT) == has_child)
goto done;
if (has_child)
{
GTK_TREE_RBNODE_SET_FLAG (node, GTK_TREE_RBNODE_IS_PARENT);
_gtk_tree_view_accessible_add_state (tree_view, tree, node, GTK_CELL_RENDERER_EXPANDABLE);
}
else
{
GTK_TREE_RBNODE_UNSET_FLAG (node, GTK_TREE_RBNODE_IS_PARENT);
_gtk_tree_view_accessible_remove_state (tree_view, tree, node, GTK_CELL_RENDERER_EXPANDABLE);
}
if (has_child && tree_view->priv->is_list)
{
tree_view->priv->is_list = FALSE;
if (tree_view->priv->show_expanders)
{
GList *list;
for (list = tree_view->priv->columns; list; list = list->next)
if (gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (list->data)))
{
_gtk_tree_view_column_cell_set_dirty (GTK_TREE_VIEW_COLUMN (list->data), TRUE);
break;
}
}
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
else
{
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
done:
if (free_path)
gtk_tree_path_free (path);
}
static void
check_selection_helper (GtkTreeRBTree *tree,
GtkTreeRBNode *node,
gpointer data)
{
gint *value = (gint *)data;
*value |= GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_SELECTED);
if (node->children && !*value)
gtk_tree_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, check_selection_helper, data);
}
static void
gtk_tree_view_row_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *)data;
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
GList *list;
gboolean selection_changed = FALSE, cursor_changed = FALSE;
GtkTreeRBTree *cursor_tree = NULL;
GtkTreeRBNode *cursor_node = NULL;
g_return_if_fail (path != NULL);
gtk_tree_row_reference_deleted (G_OBJECT (data), path);
if (_gtk_tree_view_find_node (tree_view, path, &tree, &node))
return;
if (tree == NULL)
return;
/* check if the selection has been changed */
gtk_tree_rbtree_traverse (tree, node, G_POST_ORDER,
check_selection_helper, &selection_changed);
for (list = tree_view->priv->columns; list; list = list->next)
if (gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (list->data)) &&
gtk_tree_view_column_get_sizing (GTK_TREE_VIEW_COLUMN (list->data)) == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
_gtk_tree_view_column_cell_set_dirty ((GtkTreeViewColumn *)list->data, TRUE);
/* Ensure we don't have a dangling pointer to a dead node */
ensure_unprelighted (tree_view);
/* Cancel editting if we've started */
gtk_tree_view_stop_editing (tree_view, TRUE);
/* If the cursor row got deleted, move the cursor to the next row */
if (tree_view->priv->cursor_node &&
(tree_view->priv->cursor_node == node ||
(node->children && (tree_view->priv->cursor_tree == node->children ||
gtk_tree_rbtree_contains (node->children, tree_view->priv->cursor_tree)))))
{
GtkTreePath *cursor_path;
cursor_tree = tree;
cursor_node = gtk_tree_rbtree_next (tree, node);
/* find the first node that is not going to be deleted */
while (cursor_node == NULL && cursor_tree->parent_tree)
{
cursor_node = gtk_tree_rbtree_next (cursor_tree->parent_tree,
cursor_tree->parent_node);
cursor_tree = cursor_tree->parent_tree;
}
if (cursor_node != NULL)
cursor_path = _gtk_tree_path_new_from_rbtree (cursor_tree, cursor_node);
else
cursor_path = NULL;
if (cursor_path == NULL ||
! search_first_focusable_path (tree_view, &cursor_path, TRUE,
&cursor_tree, &cursor_node))
{
/* It looks like we reached the end of the view without finding
* a focusable row. We will step backwards to find the last
* focusable row.
*/
gtk_tree_rbtree_prev_full (tree, node, &cursor_tree, &cursor_node);
if (cursor_node)
{
cursor_path = _gtk_tree_path_new_from_rbtree (cursor_tree, cursor_node);
if (! search_first_focusable_path (tree_view, &cursor_path, FALSE,
&cursor_tree, &cursor_node))
cursor_node = NULL;
gtk_tree_path_free (cursor_path);
}
}
else if (cursor_path)
gtk_tree_path_free (cursor_path);
cursor_changed = TRUE;
}
if (tree->root->count == 1)
{
if (tree_view->priv->tree == tree)
tree_view->priv->tree = NULL;
_gtk_tree_view_accessible_remove_state (tree_view,
tree->parent_tree, tree->parent_node,
GTK_CELL_RENDERER_EXPANDED);
_gtk_tree_view_accessible_remove (tree_view, tree, NULL);
gtk_tree_rbtree_remove (tree);
}
else
{
_gtk_tree_view_accessible_remove (tree_view, tree, node);
gtk_tree_rbtree_remove_node (tree, node);
}
if (! gtk_tree_row_reference_valid (tree_view->priv->top_row))
{
gtk_tree_row_reference_free (tree_view->priv->top_row);
tree_view->priv->top_row = NULL;
}
install_scroll_sync_handler (tree_view);
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
if (cursor_changed)
{
if (cursor_node)
{
GtkTreePath *cursor_path = _gtk_tree_path_new_from_rbtree (cursor_tree, cursor_node);
gtk_tree_view_real_set_cursor (tree_view, cursor_path, CLEAR_AND_SELECT | CURSOR_INVALID);
gtk_tree_path_free (cursor_path);
}
else
gtk_tree_view_real_set_cursor (tree_view, NULL, CLEAR_AND_SELECT | CURSOR_INVALID);
}
if (selection_changed)
g_signal_emit_by_name (tree_view->priv->selection, "changed");
}
static void
gtk_tree_view_rows_reordered (GtkTreeModel *model,
GtkTreePath *parent,
GtkTreeIter *iter,
gint *new_order,
gpointer data)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (data);
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
gint len;
len = gtk_tree_model_iter_n_children (model, iter);
if (len < 2)
return;
gtk_tree_row_reference_reordered (G_OBJECT (data),
parent,
iter,
new_order);
if (_gtk_tree_view_find_node (tree_view,
parent,
&tree,
&node))
return;
/* We need to special case the parent path */
if (tree == NULL)
tree = tree_view->priv->tree;
else
tree = node->children;
if (tree == NULL)
return;
if (tree_view->priv->edited_column)
gtk_tree_view_stop_editing (tree_view, TRUE);
/* we need to be unprelighted */
ensure_unprelighted (tree_view);
gtk_tree_rbtree_reorder (tree, new_order, len);
_gtk_tree_view_accessible_reorder (tree_view);
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
gtk_tree_view_dy_to_top_row (tree_view);
}
/* Internal tree functions
*/
static void
gtk_tree_view_get_background_xrange (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
GtkTreeViewColumn *column,
gint *x1,
gint *x2)
{
GtkTreeViewColumn *tmp_column = NULL;
gint total_width;
GList *list;
gboolean rtl;
if (x1)
*x1 = 0;
if (x2)
*x2 = 0;
rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
total_width = 0;
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list;
list = (rtl ? list->prev : list->next))
{
tmp_column = list->data;
if (tmp_column == column)
break;
if (gtk_tree_view_column_get_visible (tmp_column))
total_width += gtk_tree_view_column_get_width (tmp_column);
}
if (tmp_column != column)
{
g_warning (G_STRLOC": passed-in column isn't in the tree");
return;
}
if (x1)
*x1 = total_width;
if (x2)
{
if (gtk_tree_view_column_get_visible (column))
*x2 = total_width + gtk_tree_view_column_get_width (column);
else
*x2 = total_width; /* width of 0 */
}
}
static void
gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
gint *x1,
gint *x2)
{
gint x_offset = 0;
GList *list;
GtkTreeViewColumn *tmp_column = NULL;
gint total_width;
gint expander_size, expander_render_size;
gboolean rtl;
rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
expander_size = gtk_tree_view_get_expander_size (tree_view);
expander_render_size = expander_size - (_TREE_VIEW_HORIZONTAL_SEPARATOR / 2);
total_width = 0;
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list;
list = (rtl ? list->prev : list->next))
{
tmp_column = list->data;
if (gtk_tree_view_is_expander_column (tree_view, tmp_column))
{
if (rtl)
x_offset = total_width + gtk_tree_view_column_get_width (tmp_column) - expander_size;
else
x_offset = total_width;
break;
}
if (gtk_tree_view_column_get_visible (tmp_column))
total_width += gtk_tree_view_column_get_width (tmp_column);
}
x_offset += (expander_size - expander_render_size);
if (rtl)
x_offset -= expander_size * gtk_tree_rbtree_get_depth (tree);
else
x_offset += expander_size * gtk_tree_rbtree_get_depth (tree);
*x1 = x_offset;
if (tmp_column &&
gtk_tree_view_column_get_visible (tmp_column))
/* +1 because x2 isn't included in the range. */
*x2 = *x1 + expander_render_size + 1;
else
*x2 = *x1;
}
static void
gtk_tree_view_build_tree (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
GtkTreeIter *iter,
gint depth,
gboolean recurse)
{
GtkTreeRBNode *temp = NULL;
GtkTreePath *path = NULL;
do
{
gtk_tree_model_ref_node (tree_view->priv->model, iter);
temp = gtk_tree_rbtree_insert_after (tree, temp, 0, FALSE);
if (tree_view->priv->fixed_height > 0)
{
if (GTK_TREE_RBNODE_FLAG_SET (temp, GTK_TREE_RBNODE_INVALID))
{
gtk_tree_rbtree_node_set_height (tree, temp, tree_view->priv->fixed_height);
gtk_tree_rbtree_node_mark_valid (tree, temp);
}
}
if (tree_view->priv->is_list)
continue;
if (recurse)
{
GtkTreeIter child;
if (!path)
path = gtk_tree_model_get_path (tree_view->priv->model, iter);
else
gtk_tree_path_next (path);
if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter))
{
gboolean expand;
g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, iter, path, &expand);
if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter)
&& !expand)
{
temp->children = gtk_tree_rbtree_new ();
temp->children->parent_tree = tree;
temp->children->parent_node = temp;
gtk_tree_view_build_tree (tree_view, temp->children, &child, depth + 1, recurse);
}
}
}
if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter))
{
if ((temp->flags&GTK_TREE_RBNODE_IS_PARENT) != GTK_TREE_RBNODE_IS_PARENT)
temp->flags ^= GTK_TREE_RBNODE_IS_PARENT;
}
}
while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
if (path)
gtk_tree_path_free (path);
}
/* Make sure the node is visible vertically */
static void
gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
GtkTreeRBNode *node)
{
gint node_dy, height;
GtkTreePath *path = NULL;
if (!gtk_widget_get_realized (GTK_WIDGET (tree_view)))
return;
/* just return if the node is visible, avoiding a costly expose */
node_dy = gtk_tree_rbtree_node_find_offset (tree, node);
height = gtk_tree_view_get_row_height (tree_view, node);
if (! GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_INVALID)
&& node_dy >= gtk_adjustment_get_value (tree_view->priv->vadjustment)
&& node_dy + height <= (gtk_adjustment_get_value (tree_view->priv->vadjustment)
+ gtk_adjustment_get_page_size (tree_view->priv->vadjustment)))
return;
path = _gtk_tree_path_new_from_rbtree (tree, node);
if (path)
{
gtk_tree_view_scroll_to_cell (tree_view, path, NULL, FALSE, 0.0, 0.0);
gtk_tree_path_free (path);
}
}
static void
gtk_tree_view_clamp_column_visible (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
gboolean focus_to_cell)
{
GtkAllocation allocation;
gint x, width;
if (column == NULL)
return;
gtk_widget_get_allocation (gtk_tree_view_column_get_button (column), &allocation);
x = allocation.x;
width = allocation.width;
if (width > gtk_adjustment_get_page_size (tree_view->priv->hadjustment))
{
/* The column is larger than the horizontal page size. If the
* column has cells which can be focused individually, then we make
* sure the cell which gets focus is fully visible (if even the
* focus cell is bigger than the page size, we make sure the
* left-hand side of the cell is visible).
*
* If the column does not have an activatable cell, we
* make sure the left-hand side of the column is visible.
*/
if (focus_to_cell && gtk_tree_view_has_can_focus_cell (tree_view))
{
GtkCellArea *cell_area;
GtkCellRenderer *focus_cell;
cell_area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (column));
focus_cell = gtk_cell_area_get_focus_cell (cell_area);
if (gtk_tree_view_column_cell_get_position (column, focus_cell,
&x, &width))
{
if (width < gtk_adjustment_get_page_size (tree_view->priv->hadjustment))
{
if (gtk_adjustment_get_value (tree_view->priv->hadjustment) + gtk_adjustment_get_page_size (tree_view->priv->hadjustment) < x + width)
gtk_adjustment_set_value (tree_view->priv->hadjustment,
x + width - gtk_adjustment_get_page_size (tree_view->priv->hadjustment));
else if (gtk_adjustment_get_value (tree_view->priv->hadjustment) > x)
gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
}
}
}
gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
}
else
{
if ((gtk_adjustment_get_value (tree_view->priv->hadjustment) + gtk_adjustment_get_page_size (tree_view->priv->hadjustment)) < (x + width))
gtk_adjustment_set_value (tree_view->priv->hadjustment,
x + width - gtk_adjustment_get_page_size (tree_view->priv->hadjustment));
else if (gtk_adjustment_get_value (tree_view->priv->hadjustment) > x)
gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
}
}
/* This function could be more efficient. I'll optimize it if profiling seems
* to imply that it is important */
GtkTreePath *
_gtk_tree_path_new_from_rbtree (GtkTreeRBTree *tree,
GtkTreeRBNode *node)
{
GtkTreePath *path;
GtkTreeRBTree *tmp_tree;
GtkTreeRBNode *tmp_node, *last;
gint count;
path = gtk_tree_path_new ();
g_return_val_if_fail (node != NULL, path);
count = 1 + node->left->count;
last = node;
tmp_node = node->parent;
tmp_tree = tree;
while (tmp_tree)
{
while (!gtk_tree_rbtree_is_nil (tmp_node))
{
if (tmp_node->right == last)
count += 1 + tmp_node->left->count;
last = tmp_node;
tmp_node = tmp_node->parent;
}
gtk_tree_path_prepend_index (path, count - 1);
last = tmp_tree->parent_node;
tmp_tree = tmp_tree->parent_tree;
if (last)
{
count = 1 + last->left->count;
tmp_node = last->parent;
}
}
return path;
}
/* Returns TRUE if we ran out of tree before finding the path. If the path is
* invalid (ie. points to a node that’s not in the tree), *tree and *node are
* both set to NULL.
*/
gboolean
_gtk_tree_view_find_node (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeRBTree **tree,
GtkTreeRBNode **node)
{
GtkTreeRBNode *tmpnode = NULL;
GtkTreeRBTree *tmptree = tree_view->priv->tree;
gint *indices = gtk_tree_path_get_indices (path);
gint depth = gtk_tree_path_get_depth (path);
gint i = 0;
*node = NULL;
*tree = NULL;
if (depth == 0 || tmptree == NULL)
return FALSE;
do
{
tmpnode = gtk_tree_rbtree_find_count (tmptree, indices[i] + 1);
++i;
if (tmpnode == NULL)
{
*tree = NULL;
*node = NULL;
return FALSE;
}
if (i >= depth)
{
*tree = tmptree;
*node = tmpnode;
return FALSE;
}
*tree = tmptree;
*node = tmpnode;
tmptree = tmpnode->children;
if (tmptree == NULL)
return TRUE;
}
while (1);
}
static gboolean
gtk_tree_view_is_expander_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
GList *list;
if (tree_view->priv->is_list)
return FALSE;
if (tree_view->priv->expander_column != NULL)
{
if (tree_view->priv->expander_column == column)
return TRUE;
return FALSE;
}
else
{
for (list = tree_view->priv->columns;
list;
list = list->next)
if (gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (list->data)))
break;
if (list && list->data == column)
return TRUE;
}
return FALSE;
}
static inline gboolean
gtk_tree_view_draw_expanders (GtkTreeView *tree_view)
{
if (!tree_view->priv->is_list && tree_view->priv->show_expanders)
return TRUE;
/* else */
return FALSE;
}
static void
gtk_tree_view_add_move_binding (GtkBindingSet *binding_set,
guint keyval,
guint modmask,
gboolean add_shifted_binding,
GtkMovementStep step,
gint count)
{
gtk_binding_entry_add_signal (binding_set, keyval, modmask,
"move-cursor", 2,
G_TYPE_ENUM, step,
G_TYPE_INT, count);
if (add_shifted_binding)
gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
"move-cursor", 2,
G_TYPE_ENUM, step,
G_TYPE_INT, count);
if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
return;
gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"move-cursor", 2,
G_TYPE_ENUM, step,
G_TYPE_INT, count);
gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK,
"move-cursor", 2,
G_TYPE_ENUM, step,
G_TYPE_INT, count);
}
static gint
gtk_tree_view_unref_tree_helper (GtkTreeModel *model,
GtkTreeIter *iter,
GtkTreeRBTree *tree,
GtkTreeRBNode *node)
{
gint retval = FALSE;
do
{
g_return_val_if_fail (node != NULL, FALSE);
if (node->children)
{
GtkTreeIter child;
GtkTreeRBTree *new_tree;
GtkTreeRBNode *new_node;
new_tree = node->children;
new_node = gtk_tree_rbtree_first (new_tree);
if (!gtk_tree_model_iter_children (model, &child, iter))
return FALSE;
retval = gtk_tree_view_unref_tree_helper (model, &child, new_tree, new_node) | retval;
}
if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_SELECTED))
retval = TRUE;
gtk_tree_model_unref_node (model, iter);
node = gtk_tree_rbtree_next (tree, node);
}
while (gtk_tree_model_iter_next (model, iter));
return retval;
}
static gint
gtk_tree_view_unref_and_check_selection_tree (GtkTreeView *tree_view,
GtkTreeRBTree *tree)
{
GtkTreeIter iter;
GtkTreePath *path;
GtkTreeRBNode *node;
gint retval;
if (!tree)
return FALSE;
node = gtk_tree_rbtree_first (tree);
g_return_val_if_fail (node != NULL, FALSE);
path = _gtk_tree_path_new_from_rbtree (tree, node);
gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_view->priv->model),
&iter, path);
retval = gtk_tree_view_unref_tree_helper (GTK_TREE_MODEL (tree_view->priv->model), &iter, tree, node);
gtk_tree_path_free (path);
return retval;
}
static void
gtk_tree_view_set_column_drag_info (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
GtkTreeViewColumn *left_column;
GtkTreeViewColumn *cur_column = NULL;
GtkTreeViewColumnReorder *reorder;
gboolean rtl;
GList *tmp_list;
gint left;
/* We want to precalculate the motion list such that we know what column slots
* are available.
*/
left_column = NULL;
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
/* First, identify all possible drop spots */
if (rtl)
tmp_list = g_list_last (tree_view->priv->columns);
else
tmp_list = g_list_first (tree_view->priv->columns);
while (tmp_list)
{
cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
tmp_list = rtl ? tmp_list->prev : tmp_list->next;
if (gtk_tree_view_column_get_visible (cur_column) == FALSE)
continue;
/* If it's not the column moving and func tells us to skip over the column, we continue. */
if (left_column != column && cur_column != column &&
tree_view->priv->column_drop_func &&
! tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
{
left_column = cur_column;
continue;
}
reorder = g_slice_new0 (GtkTreeViewColumnReorder);
reorder->left_column = left_column;
left_column = reorder->right_column = cur_column;
tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
}
/* Add the last one */
if (tree_view->priv->column_drop_func == NULL ||
((left_column != column) &&
tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data)))
{
reorder = g_slice_new0 (GtkTreeViewColumnReorder);
reorder->left_column = left_column;
reorder->right_column = NULL;
tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
}
/* We quickly check to see if it even makes sense to reorder columns. */
/* If there is nothing that can be moved, then we return */
if (tree_view->priv->column_drag_info == NULL)
return;
/* We know there are always 2 slots possbile, as you can always return column. */
/* If that's all there is, return */
if (tree_view->priv->column_drag_info->next == NULL ||
(tree_view->priv->column_drag_info->next->next == NULL &&
((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->data)->right_column == column &&
((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->next->data)->left_column == column))
{
for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
g_slice_free (GtkTreeViewColumnReorder, tmp_list->data);
g_list_free (tree_view->priv->column_drag_info);
tree_view->priv->column_drag_info = NULL;
return;
}
/* We fill in the ranges for the columns, now that we've isolated them */
left = - TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
{
reorder = (GtkTreeViewColumnReorder *) tmp_list->data;
reorder->left_align = left;
if (tmp_list->next != NULL)
{
GtkAllocation right_allocation, left_allocation;
GtkWidget *left_button, *right_button;
g_assert (tmp_list->next->data);
right_button = gtk_tree_view_column_get_button (reorder->right_column);
left_button = gtk_tree_view_column_get_button
(((GtkTreeViewColumnReorder *)tmp_list->next->data)->left_column);
gtk_widget_get_allocation (right_button, &right_allocation);
gtk_widget_get_allocation (left_button, &left_allocation);
left = reorder->right_align = (right_allocation.x + right_allocation.width + left_allocation.x) / 2;
}
else
{
reorder->right_align = gtk_widget_get_allocated_width (GTK_WIDGET (tree_view))
+ TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
}
}
}
void
_gtk_tree_view_column_start_drag (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
GdkDevice *device)
{
GtkAllocation button_allocation;
GtkWidget *button;
GtkStyleContext *context;
g_return_if_fail (tree_view->priv->column_drag_info == NULL);
g_return_if_fail (tree_view->priv->cur_reorder == NULL);
gtk_tree_view_set_column_drag_info (tree_view, column);
if (tree_view->priv->column_drag_info == NULL)
return;
button = gtk_tree_view_column_get_button (column);
context = gtk_widget_get_style_context (button);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_DND);
gtk_widget_get_allocation (button, &button_allocation);
tree_view->priv->drag_column_x = button_allocation.x;
tree_view->priv->drag_column_y = button_allocation.y;
tree_view->priv->drag_column = column;
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
tree_view->priv->in_column_drag = TRUE;
gtk_gesture_set_state (tree_view->priv->column_drag_gesture,
GTK_EVENT_SEQUENCE_CLAIMED);
}
static inline gint
gtk_tree_view_get_effective_header_height (GtkTreeView *tree_view)
{
if (tree_view->priv->headers_visible)
return tree_view->priv->header_height;
else
return 0;
}
void
_gtk_tree_view_get_row_separator_func (GtkTreeView *tree_view,
GtkTreeViewRowSeparatorFunc *func,
gpointer *data)
{
*func = tree_view->priv->row_separator_func;
*data = tree_view->priv->row_separator_data;
}
GtkTreePath *
_gtk_tree_view_get_anchor_path (GtkTreeView *tree_view)
{
if (tree_view->priv->anchor)
return gtk_tree_row_reference_get_path (tree_view->priv->anchor);
return NULL;
}
void
_gtk_tree_view_set_anchor_path (GtkTreeView *tree_view,
GtkTreePath *anchor_path)
{
if (tree_view->priv->anchor)
{
gtk_tree_row_reference_free (tree_view->priv->anchor);
tree_view->priv->anchor = NULL;
}
if (anchor_path && tree_view->priv->model)
tree_view->priv->anchor =
gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
tree_view->priv->model, anchor_path);
}
GtkTreeRBTree *
_gtk_tree_view_get_rbtree (GtkTreeView *tree_view)
{
return tree_view->priv->tree;
}
gboolean
_gtk_tree_view_get_cursor_node (GtkTreeView *tree_view,
GtkTreeRBTree **tree,
GtkTreeRBNode **node)
{
GtkTreeViewPrivate *priv;
priv = tree_view->priv;
if (priv->cursor_node == NULL)
return FALSE;
*tree = priv->cursor_tree;
*node = priv->cursor_node;
return TRUE;
}
GtkTreeViewColumn *
_gtk_tree_view_get_focus_column (GtkTreeView *tree_view)
{
return tree_view->priv->focus_column;
}
void
_gtk_tree_view_set_focus_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
GtkTreeViewColumn *old_column = tree_view->priv->focus_column;
if (old_column == column)
return;
tree_view->priv->focus_column = column;
_gtk_tree_view_accessible_update_focus_column (tree_view,
old_column,
column);
}
/* x and y are the mouse position
*/
static void
gtk_tree_view_snapshot_arrow (GtkTreeView *tree_view,
GtkSnapshot *snapshot,
GtkTreeRBTree *tree,
GtkTreeRBNode *node)
{
GdkRectangle area;
GtkStateFlags state = 0;
GtkStyleContext *context;
GtkWidget *widget;
gint x_offset = 0;
gint x2;
GtkCellRendererState flags = 0;
GtkCssImageBuiltinType image_type;
gboolean rtl;
widget = GTK_WIDGET (tree_view);
context = gtk_widget_get_style_context (widget);
rtl = (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
if (! GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT))
return;
gtk_tree_view_get_arrow_xrange (tree_view, tree, &x_offset, &x2);
area.x = x_offset;
area.y = gtk_tree_view_get_cell_area_y_offset (tree_view, tree, node);
area.width = x2 - x_offset;
area.height = gtk_tree_view_get_cell_area_height (tree_view, node);
if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_SELECTED))
flags |= GTK_CELL_RENDERER_SELECTED;
if (node == tree_view->priv->prelight_node &&
tree_view->priv->arrow_prelit)
flags |= GTK_CELL_RENDERER_PRELIT;
state = gtk_cell_renderer_get_state (NULL, widget, flags);
if (node->children != NULL)
{
state |= GTK_STATE_FLAG_CHECKED;
image_type = rtl ? GTK_CSS_IMAGE_BUILTIN_EXPANDER_VERTICAL_RIGHT_EXPANDED
: GTK_CSS_IMAGE_BUILTIN_EXPANDER_VERTICAL_LEFT_EXPANDED;
}
else
{
state &= ~(GTK_STATE_FLAG_CHECKED);
image_type = rtl ? GTK_CSS_IMAGE_BUILTIN_EXPANDER_VERTICAL_RIGHT
: GTK_CSS_IMAGE_BUILTIN_EXPANDER_VERTICAL_LEFT;
}
gtk_style_context_save (context);
gtk_style_context_set_state (context, state);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_EXPANDER);
gtk_snapshot_save (snapshot);
gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (area.x, area.y));
gtk_css_style_snapshot_icon (gtk_style_context_lookup_style (context), snapshot,
area.width, area.height, image_type);
gtk_snapshot_restore (snapshot);
gtk_style_context_restore (context);
}
static void
gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view)
{
GtkTreePath *cursor_path;
if ((tree_view->priv->tree == NULL) ||
(! gtk_widget_get_realized (GTK_WIDGET (tree_view))))
return;
cursor_path = NULL;
if (tree_view->priv->cursor_node)
cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->priv->cursor_tree,
tree_view->priv->cursor_node);
if (cursor_path == NULL)
{
/* Consult the selection before defaulting to the
* first focusable element
*/
GList *selected_rows;
GtkTreeModel *model;
GtkTreeSelection *selection;
selection = gtk_tree_view_get_selection (tree_view);
selected_rows = gtk_tree_selection_get_selected_rows (selection, &model);
if (selected_rows)
{
cursor_path = gtk_tree_path_copy((const GtkTreePath *)(selected_rows->data));
g_list_free_full (selected_rows, (GDestroyNotify) gtk_tree_path_free);
}
else
{
cursor_path = gtk_tree_path_new_first ();
search_first_focusable_path (tree_view, &cursor_path,
TRUE, NULL, NULL);
}
if (cursor_path)
{
if (gtk_tree_selection_get_mode (tree_view->priv->selection) == GTK_SELECTION_MULTIPLE)
gtk_tree_view_real_set_cursor (tree_view, cursor_path, 0);
else
gtk_tree_view_real_set_cursor (tree_view, cursor_path, CLEAR_AND_SELECT);
}
}
if (cursor_path)
{
tree_view->priv->draw_keyfocus = TRUE;
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
gtk_tree_path_free (cursor_path);
if (tree_view->priv->focus_column == NULL)
{
GList *list;
for (list = tree_view->priv->columns; list; list = list->next)
{
if (gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (list->data)))
{
GtkCellArea *cell_area;
_gtk_tree_view_set_focus_column (tree_view, GTK_TREE_VIEW_COLUMN (list->data));
/* This happens when the treeview initially grabs focus and there
* is no column in focus, here we explicitly focus into the first cell */
cell_area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (tree_view->priv->focus_column));
if (!gtk_cell_area_get_focus_cell (cell_area))
{
gboolean rtl;
rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
gtk_cell_area_focus (cell_area,
rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT);
}
break;
}
}
}
}
}
static void
gtk_tree_view_move_cursor_up_down (GtkTreeView *tree_view,
gint count)
{
gint selection_count;
GtkTreeRBTree *new_cursor_tree = NULL;
GtkTreeRBNode *new_cursor_node = NULL;
GtkTreePath *cursor_path = NULL;
gboolean selectable;
GtkDirectionType direction;
GtkCellArea *cell_area = NULL;
GtkCellRenderer *last_focus_cell = NULL;
GtkTreeIter iter;
if (tree_view->priv->cursor_node == NULL)
return;
cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->priv->cursor_tree,
tree_view->priv->cursor_node);
direction = count < 0 ? GTK_DIR_UP : GTK_DIR_DOWN;
if (tree_view->priv->focus_column)
cell_area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (tree_view->priv->focus_column));
/* If focus stays in the area for this row, then just return for this round */
if (cell_area && (count == -1 || count == 1) &&
gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path))
{
gtk_tree_view_column_cell_set_cell_data (tree_view->priv->focus_column,
tree_view->priv->model,
&iter,
GTK_TREE_RBNODE_FLAG_SET (tree_view->priv->cursor_node, GTK_TREE_RBNODE_IS_PARENT),
tree_view->priv->cursor_node->children ? TRUE : FALSE);
/* Save the last cell that had focus, if we hit the end of the view we'll give
* focus back to it. */
last_focus_cell = gtk_cell_area_get_focus_cell (cell_area);
/* If focus stays in the area, no need to change the cursor row */
if (gtk_cell_area_focus (cell_area, direction))
return;
}
selection_count = gtk_tree_selection_count_selected_rows (tree_view->priv->selection);
selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection,
tree_view->priv->cursor_node,
cursor_path);
if (selection_count == 0
&& gtk_tree_selection_get_mode (tree_view->priv->selection) != GTK_SELECTION_NONE
&& !tree_view->priv->modify_selection_pressed
&& selectable)
{
/* Don't move the cursor, but just select the current node */
new_cursor_tree = tree_view->priv->cursor_tree;
new_cursor_node = tree_view->priv->cursor_node;
}
else
{
if (count == -1)
gtk_tree_rbtree_prev_full (tree_view->priv->cursor_tree, tree_view->priv->cursor_node,
&new_cursor_tree, &new_cursor_node);
else
gtk_tree_rbtree_next_full (tree_view->priv->cursor_tree, tree_view->priv->cursor_node,
&new_cursor_tree, &new_cursor_node);
}
gtk_tree_path_free (cursor_path);
if (new_cursor_node)
{
cursor_path = _gtk_tree_path_new_from_rbtree (new_cursor_tree, new_cursor_node);
search_first_focusable_path (tree_view, &cursor_path,
(count != -1),
&new_cursor_tree,
&new_cursor_node);
if (cursor_path)
gtk_tree_path_free (cursor_path);
}
/*
* If the list has only one item and multi-selection is set then select
* the row (if not yet selected).
*/
if (gtk_tree_selection_get_mode (tree_view->priv->selection) == GTK_SELECTION_MULTIPLE &&
new_cursor_node == NULL)
{
if (count == -1)
gtk_tree_rbtree_next_full (tree_view->priv->cursor_tree, tree_view->priv->cursor_node,
&new_cursor_tree, &new_cursor_node);
else
gtk_tree_rbtree_prev_full (tree_view->priv->cursor_tree, tree_view->priv->cursor_node,
&new_cursor_tree, &new_cursor_node);
if (new_cursor_node == NULL
&& !GTK_TREE_RBNODE_FLAG_SET (tree_view->priv->cursor_node, GTK_TREE_RBNODE_IS_SELECTED))
{
new_cursor_node = tree_view->priv->cursor_node;
new_cursor_tree = tree_view->priv->cursor_tree;
}
else
{
new_cursor_tree = NULL;
new_cursor_node = NULL;
}
}
if (new_cursor_node)
{
cursor_path = _gtk_tree_path_new_from_rbtree (new_cursor_tree, new_cursor_node);
gtk_tree_view_real_set_cursor (tree_view, cursor_path, CLEAR_AND_SELECT | CLAMP_NODE);
gtk_tree_path_free (cursor_path);
/* Give focus to the area in the new row */
if (cell_area)
gtk_cell_area_focus (cell_area, direction);
}
else
{
gtk_tree_view_clamp_node_visible (tree_view,
tree_view->priv->cursor_tree,
tree_view->priv->cursor_node);
if (!tree_view->priv->extend_selection_pressed)
{
if (! gtk_widget_keynav_failed (GTK_WIDGET (tree_view),
count < 0 ?
GTK_DIR_UP : GTK_DIR_DOWN))
{
GtkWidget *toplevel = GTK_WIDGET (gtk_widget_get_root (GTK_WIDGET (tree_view)));
if (toplevel)
gtk_widget_child_focus (toplevel,
count < 0 ?
GTK_DIR_TAB_BACKWARD :
GTK_DIR_TAB_FORWARD);
}
}
else
{
gtk_widget_error_bell (GTK_WIDGET (tree_view));
}
if (cell_area)
gtk_cell_area_set_focus_cell (cell_area, last_focus_cell);
}
}
static void
gtk_tree_view_move_cursor_page_up_down (GtkTreeView *tree_view,
gint count)
{
GtkTreePath *old_cursor_path = NULL;
GtkTreePath *cursor_path = NULL;
GtkTreeRBTree *start_cursor_tree = NULL;
GtkTreeRBNode *start_cursor_node = NULL;
GtkTreeRBTree *cursor_tree;
GtkTreeRBNode *cursor_node;
gint y;
gint window_y;
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return;
if (tree_view->priv->cursor_node == NULL)
return;
old_cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->priv->cursor_tree,
tree_view->priv->cursor_node);
y = gtk_tree_rbtree_node_find_offset (tree_view->priv->cursor_tree, tree_view->priv->cursor_node);
window_y = RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, y);
y += tree_view->priv->cursor_offset;
y += count * (int)gtk_adjustment_get_page_increment (tree_view->priv->vadjustment);
y = CLAMP (y, (gint)gtk_adjustment_get_lower (tree_view->priv->vadjustment), (gint)gtk_adjustment_get_upper (tree_view->priv->vadjustment));
if (y >= gtk_tree_view_get_height (tree_view))
y = gtk_tree_view_get_height (tree_view) - 1;
tree_view->priv->cursor_offset =
gtk_tree_rbtree_find_offset (tree_view->priv->tree, y,
&cursor_tree, &cursor_node);
if (cursor_tree == NULL)
{
/* FIXME: we lost the cursor. Should we try to get one? */
gtk_tree_path_free (old_cursor_path);
return;
}
if (tree_view->priv->cursor_offset
> gtk_tree_view_get_row_height (tree_view, cursor_node))
{
gtk_tree_rbtree_next_full (cursor_tree, cursor_node,
&cursor_tree, &cursor_node);
tree_view->priv->cursor_offset -= gtk_tree_view_get_row_height (tree_view, cursor_node);
}
y -= tree_view->priv->cursor_offset;
cursor_path = _gtk_tree_path_new_from_rbtree (cursor_tree, cursor_node);
start_cursor_tree = cursor_tree;
start_cursor_node = cursor_node;
if (! search_first_focusable_path (tree_view, &cursor_path,
(count != -1),
&cursor_tree, &cursor_node))
{
/* It looks like we reached the end of the view without finding
* a focusable row. We will step backwards to find the last
* focusable row.
*/
cursor_tree = start_cursor_tree;
cursor_node = start_cursor_node;
cursor_path = _gtk_tree_path_new_from_rbtree (cursor_tree, cursor_node);
search_first_focusable_path (tree_view, &cursor_path,
(count == -1),
&cursor_tree, &cursor_node);
}
if (!cursor_path)
goto cleanup;
/* update y */
y = gtk_tree_rbtree_node_find_offset (cursor_tree, cursor_node);
gtk_tree_view_real_set_cursor (tree_view, cursor_path, CLEAR_AND_SELECT);
y -= window_y;
gtk_tree_view_scroll_to_point (tree_view, -1, y);
gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
if (!gtk_tree_path_compare (old_cursor_path, cursor_path))
gtk_widget_error_bell (GTK_WIDGET (tree_view));
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
cleanup:
gtk_tree_path_free (old_cursor_path);
gtk_tree_path_free (cursor_path);
}
static void
gtk_tree_view_move_cursor_left_right (GtkTreeView *tree_view,
gint count)
{
GtkTreePath *cursor_path = NULL;
GtkTreeViewColumn *column;
GtkTreeIter iter;
GList *list;
gboolean found_column = FALSE;
gboolean rtl;
GtkDirectionType direction;
GtkCellArea *cell_area;
GtkCellRenderer *last_focus_cell = NULL;
GtkCellArea *last_focus_area = NULL;
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return;
if (tree_view->priv->cursor_node == NULL)
return;
cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->priv->cursor_tree,
tree_view->priv->cursor_node);
if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path) == FALSE)
{
gtk_tree_path_free (cursor_path);
return;
}
gtk_tree_path_free (cursor_path);
list = rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns);
if (tree_view->priv->focus_column)
{
/* Save the cell/area we are moving focus from, if moving the cursor
* by one step hits the end we'll set focus back here */
last_focus_area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (tree_view->priv->focus_column));
last_focus_cell = gtk_cell_area_get_focus_cell (last_focus_area);
for (; list; list = (rtl ? list->prev : list->next))
{
if (list->data == tree_view->priv->focus_column)
break;
}
}
direction = count > 0 ? GTK_DIR_RIGHT : GTK_DIR_LEFT;
while (list)
{
column = list->data;
if (gtk_tree_view_column_get_visible (column) == FALSE)
goto loop_end;
gtk_tree_view_column_cell_set_cell_data (column,
tree_view->priv->model,
&iter,
GTK_TREE_RBNODE_FLAG_SET (tree_view->priv->cursor_node, GTK_TREE_RBNODE_IS_PARENT),
tree_view->priv->cursor_node->children ? TRUE : FALSE);
cell_area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (column));
if (gtk_cell_area_focus (cell_area, direction))
{
_gtk_tree_view_set_focus_column (tree_view, column);
found_column = TRUE;
break;
}
loop_end:
if (count == 1)
list = rtl ? list->prev : list->next;
else
list = rtl ? list->next : list->prev;
}
if (found_column)
{
if (!gtk_tree_view_has_can_focus_cell (tree_view))
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
}
else
{
gtk_widget_error_bell (GTK_WIDGET (tree_view));
if (last_focus_area)
gtk_cell_area_set_focus_cell (last_focus_area, last_focus_cell);
}
gtk_tree_view_clamp_column_visible (tree_view,
tree_view->priv->focus_column, TRUE);
}
static void
gtk_tree_view_move_cursor_start_end (GtkTreeView *tree_view,
gint count)
{
GtkTreeRBTree *cursor_tree;
GtkTreeRBNode *cursor_node;
GtkTreePath *path;
GtkTreePath *old_path;
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return;
g_return_if_fail (tree_view->priv->tree != NULL);
gtk_tree_view_get_cursor (tree_view, &old_path, NULL);
cursor_tree = tree_view->priv->tree;
if (count == -1)
{
cursor_node = gtk_tree_rbtree_first (cursor_tree);
/* Now go forward to find the first focusable row. */
path = _gtk_tree_path_new_from_rbtree (cursor_tree, cursor_node);
search_first_focusable_path (tree_view, &path,
TRUE, &cursor_tree, &cursor_node);
}
else
{
cursor_node = cursor_tree->root;
do
{
while (cursor_node && !gtk_tree_rbtree_is_nil (cursor_node->right))
cursor_node = cursor_node->right;
if (cursor_node->children == NULL)
break;
cursor_tree = cursor_node->children;
cursor_node = cursor_tree->root;
}
while (1);
/* Now go backwards to find last focusable row. */
path = _gtk_tree_path_new_from_rbtree (cursor_tree, cursor_node);
search_first_focusable_path (tree_view, &path,
FALSE, &cursor_tree, &cursor_node);
}
if (!path)
goto cleanup;
if (gtk_tree_path_compare (old_path, path))
{
gtk_tree_view_real_set_cursor (tree_view, path, CLEAR_AND_SELECT | CLAMP_NODE);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
}
else
{
gtk_widget_error_bell (GTK_WIDGET (tree_view));
}
cleanup:
gtk_tree_path_free (old_path);
gtk_tree_path_free (path);
}
static gboolean
gtk_tree_view_real_select_all (GtkTreeView *tree_view)
{
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return FALSE;
if (gtk_tree_selection_get_mode (tree_view->priv->selection) != GTK_SELECTION_MULTIPLE)
return FALSE;
gtk_tree_selection_select_all (tree_view->priv->selection);
return TRUE;
}
static gboolean
gtk_tree_view_real_unselect_all (GtkTreeView *tree_view)
{
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return FALSE;
if (gtk_tree_selection_get_mode (tree_view->priv->selection) != GTK_SELECTION_MULTIPLE)
return FALSE;
gtk_tree_selection_unselect_all (tree_view->priv->selection);
return TRUE;
}
static gboolean
gtk_tree_view_real_select_cursor_row (GtkTreeView *tree_view,
gboolean start_editing)
{
GtkTreeRBTree *new_tree = NULL;
GtkTreeRBNode *new_node = NULL;
GtkTreeRBTree *cursor_tree = NULL;
GtkTreeRBNode *cursor_node = NULL;
GtkTreePath *cursor_path = NULL;
GtkTreeSelectMode mode = 0;
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return FALSE;
if (tree_view->priv->cursor_node == NULL)
return FALSE;
cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->priv->cursor_tree,
tree_view->priv->cursor_node);
_gtk_tree_view_find_node (tree_view, cursor_path,
&cursor_tree, &cursor_node);
if (cursor_tree == NULL)
{
gtk_tree_path_free (cursor_path);
return FALSE;
}
if (!tree_view->priv->extend_selection_pressed && start_editing &&
tree_view->priv->focus_column)
{
if (gtk_tree_view_start_editing (tree_view, cursor_path, FALSE))
{
gtk_tree_path_free (cursor_path);
return TRUE;
}
}
if (tree_view->priv->modify_selection_pressed)
mode |= GTK_TREE_SELECT_MODE_TOGGLE;
if (tree_view->priv->extend_selection_pressed)
mode |= GTK_TREE_SELECT_MODE_EXTEND;
_gtk_tree_selection_internal_select_node (tree_view->priv->selection,
cursor_node,
cursor_tree,
cursor_path,
mode,
FALSE);
/* We bail out if the original (tree, node) don't exist anymore after
* handling the selection-changed callback. We do return TRUE because
* the key press has been handled at this point.
*/
_gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
if (cursor_tree != new_tree || cursor_node != new_node)
return FALSE;
gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
if (!tree_view->priv->extend_selection_pressed)
gtk_tree_view_row_activated (tree_view, cursor_path,
tree_view->priv->focus_column);
gtk_tree_path_free (cursor_path);
return TRUE;
}
static gboolean
gtk_tree_view_real_toggle_cursor_row (GtkTreeView *tree_view)
{
GtkTreeRBTree *new_tree = NULL;
GtkTreeRBNode *new_node = NULL;
GtkTreePath *cursor_path = NULL;
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return FALSE;
if (tree_view->priv->cursor_node == NULL)
return FALSE;
cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->priv->cursor_tree,
tree_view->priv->cursor_node);
_gtk_tree_selection_internal_select_node (tree_view->priv->selection,
tree_view->priv->cursor_node,
tree_view->priv->cursor_tree,
cursor_path,
GTK_TREE_SELECT_MODE_TOGGLE,
FALSE);
/* We bail out if the original (tree, node) don't exist anymore after
* handling the selection-changed callback. We do return TRUE because
* the key press has been handled at this point.
*/
_gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
if (tree_view->priv->cursor_node != new_node)
return FALSE;
gtk_tree_view_clamp_node_visible (tree_view,
tree_view->priv->cursor_tree,
tree_view->priv->cursor_node);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
gtk_tree_path_free (cursor_path);
return TRUE;
}
static gboolean
gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView *tree_view,
gboolean logical,
gboolean expand,
gboolean open_all)
{
GtkTreePath *cursor_path = NULL;
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return FALSE;
if (tree_view->priv->cursor_node == NULL)
return FALSE;
cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->priv->cursor_tree,
tree_view->priv->cursor_node);
/* Don't handle the event if we aren't an expander */
if (!GTK_TREE_RBNODE_FLAG_SET (tree_view->priv->cursor_node, GTK_TREE_RBNODE_IS_PARENT))
return FALSE;
if (!logical
&& gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL)
expand = !expand;
if (expand)
gtk_tree_view_real_expand_row (tree_view,
cursor_path,
tree_view->priv->cursor_tree,
tree_view->priv->cursor_node,
open_all,
TRUE);
else
gtk_tree_view_real_collapse_row (tree_view,
cursor_path,
tree_view->priv->cursor_tree,
tree_view->priv->cursor_node,
TRUE);
gtk_tree_path_free (cursor_path);
return TRUE;
}
static gboolean
gtk_tree_view_real_select_cursor_parent (GtkTreeView *tree_view)
{
GtkTreePath *cursor_path = NULL;
GdkModifierType state;
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
goto out;
if (tree_view->priv->cursor_node == NULL)
goto out;
cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->priv->cursor_tree,
tree_view->priv->cursor_node);
if (tree_view->priv->cursor_tree->parent_node)
{
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
gtk_tree_path_up (cursor_path);
if (gtk_get_current_event_state (&state))
{
GdkModifierType modify_mod_mask;
modify_mod_mask =
gtk_widget_get_modifier_mask (GTK_WIDGET (tree_view),
GDK_MODIFIER_INTENT_MODIFY_SELECTION);
if ((state & modify_mod_mask) == modify_mod_mask)
tree_view->priv->modify_selection_pressed = TRUE;
}
gtk_tree_view_real_set_cursor (tree_view, cursor_path, CLEAR_AND_SELECT | CLAMP_NODE);
gtk_tree_path_free (cursor_path);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
tree_view->priv->modify_selection_pressed = FALSE;
return TRUE;
}
out:
tree_view->priv->search_entry_avoid_unhandled_binding = TRUE;
return FALSE;
}
static gboolean
gtk_tree_view_search_entry_flush_timeout (GtkTreeView *tree_view)
{
gtk_tree_view_search_window_hide (tree_view->priv->search_window, tree_view, NULL);
tree_view->priv->typeselect_flush_timeout = 0;
return FALSE;
}
/* Cut and paste from gtkwindow.c */
static void
send_focus_change (GtkWidget *widget,
GdkDevice *device,
gboolean in)
{
GdkSeat *seat;
GList *devices, *d;
seat = gdk_display_get_default_seat (gtk_widget_get_display (widget));
devices = gdk_seat_get_slaves (seat, GDK_SEAT_CAPABILITY_KEYBOARD);
devices = g_list_prepend (devices, gdk_seat_get_keyboard (seat));
for (d = devices; d; d = d->next)
{
GdkEvent *fevent;
GdkSurface *surface;
surface = gtk_native_get_surface (gtk_widget_get_native (widget));
fevent = gdk_event_new (GDK_FOCUS_CHANGE);
fevent->any.type = GDK_FOCUS_CHANGE;
fevent->any.surface = g_object_ref (surface);
fevent->focus_change.in = in;
gdk_event_set_device (fevent, device);
gtk_widget_set_has_focus (widget, in);
gtk_widget_event (widget, fevent);
g_object_unref (fevent);
}
g_list_free (devices);
}
static void
gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view)
{
GtkWidget *frame, *vbox, *toplevel;
GdkDisplay *display;
GtkEventController *controller;
GtkGesture *gesture;
if (tree_view->priv->search_custom_entry_set)
return;
toplevel = GTK_WIDGET (gtk_widget_get_root (GTK_WIDGET (tree_view)));
display = gtk_widget_get_display (GTK_WIDGET (tree_view));
if (tree_view->priv->search_window != NULL)
{
if (gtk_window_has_group (GTK_WINDOW (toplevel)))
gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)),
GTK_WINDOW (tree_view->priv->search_window));
else if (gtk_window_has_group (GTK_WINDOW (tree_view->priv->search_window)))
gtk_window_group_remove_window (gtk_window_get_group (GTK_WINDOW (tree_view->priv->search_window)),
GTK_WINDOW (tree_view->priv->search_window));
gtk_window_set_display (GTK_WINDOW (tree_view->priv->search_window), display);
return;
}
tree_view->priv->search_window = gtk_window_new (GTK_WINDOW_POPUP);
gtk_window_set_display (GTK_WINDOW (tree_view->priv->search_window), display);
if (gtk_window_has_group (GTK_WINDOW (toplevel)))
gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)),
GTK_WINDOW (tree_view->priv->search_window));
gtk_window_set_type_hint (GTK_WINDOW (tree_view->priv->search_window),
GDK_SURFACE_TYPE_HINT_UTILITY);
gtk_window_set_modal (GTK_WINDOW (tree_view->priv->search_window), TRUE);
gtk_window_set_transient_for (GTK_WINDOW (tree_view->priv->search_window),
GTK_WINDOW (toplevel));
controller = gtk_event_controller_key_new ();
g_signal_connect (controller, "key-pressed",
G_CALLBACK (gtk_tree_view_search_key_pressed),
tree_view);
gtk_widget_add_controller (tree_view->priv->search_window, controller);
gesture = gtk_gesture_click_new ();
g_signal_connect (gesture, "pressed",
G_CALLBACK (gtk_tree_view_search_pressed_cb), tree_view);
gtk_widget_add_controller (tree_view->priv->search_window, GTK_EVENT_CONTROLLER (gesture));
controller = gtk_event_controller_scroll_new (GTK_EVENT_CONTROLLER_SCROLL_VERTICAL);
g_signal_connect (controller, "scroll",
G_CALLBACK (gtk_tree_view_search_scroll_event),
tree_view);
gtk_widget_add_controller (tree_view->priv->search_window, controller);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
gtk_widget_show (frame);
gtk_container_add (GTK_CONTAINER (tree_view->priv->search_window), frame);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_widget_show (vbox);
gtk_container_add (GTK_CONTAINER (frame), vbox);
/* add entry */
tree_view->priv->search_entry = gtk_text_new ();
g_signal_connect (tree_view->priv->search_entry, "activate",
G_CALLBACK (gtk_tree_view_search_activate), tree_view);
g_signal_connect (tree_view->priv->search_entry, "preedit-changed",
G_CALLBACK (gtk_tree_view_search_preedit_changed), tree_view);
g_signal_connect (tree_view->priv->search_entry, "changed",
G_CALLBACK (gtk_tree_view_search_changed), tree_view);
gtk_container_add (GTK_CONTAINER (vbox),
tree_view->priv->search_entry);
gtk_widget_realize (tree_view->priv->search_entry);
}
/* Pops up the interactive search entry. If keybinding is TRUE then the user
* started this by typing the start_interactive_search keybinding. Otherwise, it came from
*/
static gboolean
gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
GdkDevice *device,
gboolean keybinding)
{
/* We only start interactive search if we have focus or the columns
* have focus. If one of our children have focus, we don't want to
* start the search.
*/
GList *list;
gboolean found_focus = FALSE;
if (!tree_view->priv->enable_search && !keybinding)
return FALSE;
if (tree_view->priv->search_custom_entry_set)
return FALSE;
if (tree_view->priv->search_window != NULL &&
gtk_widget_get_visible (tree_view->priv->search_window))
return TRUE;
for (list = tree_view->priv->columns; list; list = list->next)
{
GtkTreeViewColumn *column;
GtkWidget *button;
column = list->data;
if (!gtk_tree_view_column_get_visible (column))
continue;
button = gtk_tree_view_column_get_button (column);
if (gtk_widget_has_focus (button))
{
found_focus = TRUE;
break;
}
}
if (gtk_widget_has_focus (GTK_WIDGET (tree_view)))
found_focus = TRUE;
if (!found_focus)
return FALSE;
if (tree_view->priv->search_column < 0)
return FALSE;
gtk_tree_view_ensure_interactive_directory (tree_view);
if (keybinding)
gtk_editable_set_text (GTK_EDITABLE (tree_view->priv->search_entry), "");
/* done, show it */
tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window, tree_view->priv->search_position_user_data);
/* Grab focus without selecting all the text. */
if (GTK_IS_ENTRY (tree_view->priv->search_entry))
gtk_entry_grab_focus_without_selecting (GTK_ENTRY (tree_view->priv->search_entry));
else
gtk_widget_grab_focus (tree_view->priv->search_entry);
gtk_widget_show (tree_view->priv->search_window);
if (tree_view->priv->search_entry_changed_id == 0)
{
tree_view->priv->search_entry_changed_id =
g_signal_connect (tree_view->priv->search_entry, "changed",
G_CALLBACK (gtk_tree_view_search_init),
tree_view);
}
tree_view->priv->typeselect_flush_timeout =
g_timeout_add (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
(GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
tree_view);
g_source_set_name_by_id (tree_view->priv->typeselect_flush_timeout, "[gtk] gtk_tree_view_search_entry_flush_timeout");
/* send focus-in event */
send_focus_change (tree_view->priv->search_entry, device, TRUE);
/* search first matching iter */
gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
return TRUE;
}
static gboolean
gtk_tree_view_start_interactive_search (GtkTreeView *tree_view)
{
return gtk_tree_view_real_start_interactive_search (tree_view,
gtk_get_current_event_device (),
TRUE);
}
/* Callbacks */
static void
gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
GtkTreeView *tree_view)
{
if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
{
GtkAllocation allocation;
gint dy;
gtk_widget_get_allocation (GTK_WIDGET (tree_view), &allocation);
dy = tree_view->priv->dy - (int) gtk_adjustment_get_value (tree_view->priv->vadjustment);
if (dy != 0)
{
/* update our dy and top_row */
tree_view->priv->dy = (int) gtk_adjustment_get_value (tree_view->priv->vadjustment);
update_prelight (tree_view,
tree_view->priv->event_last_x,
tree_view->priv->event_last_y);
if (!tree_view->priv->in_top_row_to_dy)
gtk_tree_view_dy_to_top_row (tree_view);
}
}
gtk_widget_queue_allocate (GTK_WIDGET (tree_view));
}
/* Public methods
*/
/**
* gtk_tree_view_new:
*
* Creates a new #GtkTreeView widget.
*
* Returns: A newly created #GtkTreeView widget.
**/
GtkWidget *
gtk_tree_view_new (void)
{
return g_object_new (GTK_TYPE_TREE_VIEW, NULL);
}
/**
* gtk_tree_view_new_with_model:
* @model: the model.
*
* Creates a new #GtkTreeView widget with the model initialized to @model.
*
* Returns: A newly created #GtkTreeView widget.
**/
GtkWidget *
gtk_tree_view_new_with_model (GtkTreeModel *model)
{
return g_object_new (GTK_TYPE_TREE_VIEW, "model", model, NULL);
}
/* Public Accessors
*/
/**
* gtk_tree_view_get_model:
* @tree_view: a #GtkTreeView
*
* Returns the model the #GtkTreeView is based on. Returns %NULL if the
* model is unset.
*
* Returns: (transfer none) (nullable): A #GtkTreeModel, or %NULL if
* none is currently being used.
**/
GtkTreeModel *
gtk_tree_view_get_model (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return tree_view->priv->model;
}
/**
* gtk_tree_view_set_model:
* @tree_view: A #GtkTreeView.
* @model: (allow-none): The model.
*
* Sets the model for a #GtkTreeView. If the @tree_view already has a model
* set, it will remove it before setting the new model. If @model is %NULL,
* then it will unset the old model.
**/
void
gtk_tree_view_set_model (GtkTreeView *tree_view,
GtkTreeModel *model)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
if (model == tree_view->priv->model)
return;
if (tree_view->priv->scroll_to_path)
{
gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
tree_view->priv->scroll_to_path = NULL;
}
if (tree_view->priv->rubber_band_status)
gtk_tree_view_stop_rubber_band (tree_view);
if (tree_view->priv->model)
{
GList *tmplist = tree_view->priv->columns;
gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
gtk_tree_view_stop_editing (tree_view, TRUE);
g_signal_handlers_disconnect_by_func (tree_view->priv->model,
gtk_tree_view_row_changed,
tree_view);
g_signal_handlers_disconnect_by_func (tree_view->priv->model,
gtk_tree_view_row_inserted,
tree_view);
g_signal_handlers_disconnect_by_func (tree_view->priv->model,
gtk_tree_view_row_has_child_toggled,
tree_view);
g_signal_handlers_disconnect_by_func (tree_view->priv->model,
gtk_tree_view_row_deleted,
tree_view);
g_signal_handlers_disconnect_by_func (tree_view->priv->model,
gtk_tree_view_rows_reordered,
tree_view);
for (; tmplist; tmplist = tmplist->next)
_gtk_tree_view_column_unset_model (tmplist->data,
tree_view->priv->model);
if (tree_view->priv->tree)
gtk_tree_view_free_rbtree (tree_view);
gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
tree_view->priv->drag_dest_row = NULL;
gtk_tree_row_reference_free (tree_view->priv->anchor);
tree_view->priv->anchor = NULL;
gtk_tree_row_reference_free (tree_view->priv->top_row);
tree_view->priv->top_row = NULL;
gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
tree_view->priv->scroll_to_path = NULL;
tree_view->priv->scroll_to_column = NULL;
g_object_unref (tree_view->priv->model);
tree_view->priv->search_column = -1;
tree_view->priv->fixed_height_check = 0;
tree_view->priv->fixed_height = -1;
tree_view->priv->dy = tree_view->priv->top_row_dy = 0;
}
tree_view->priv->model = model;
if (tree_view->priv->model)
{
gint i;
GtkTreePath *path;
GtkTreeIter iter;
GtkTreeModelFlags flags;
if (tree_view->priv->search_column == -1)
{
for (i = 0; i < gtk_tree_model_get_n_columns (model); i++)
{
GType type = gtk_tree_model_get_column_type (model, i);
if (g_value_type_transformable (type, G_TYPE_STRING))
{
tree_view->priv->search_column = i;
break;
}
}
}
g_object_ref (tree_view->priv->model);
g_signal_connect (tree_view->priv->model,
"row-changed",
G_CALLBACK (gtk_tree_view_row_changed),
tree_view);
g_signal_connect (tree_view->priv->model,
"row-inserted",
G_CALLBACK (gtk_tree_view_row_inserted),
tree_view);
g_signal_connect (tree_view->priv->model,
"row-has-child-toggled",
G_CALLBACK (gtk_tree_view_row_has_child_toggled),
tree_view);
g_signal_connect (tree_view->priv->model,
"row-deleted",
G_CALLBACK (gtk_tree_view_row_deleted),
tree_view);
g_signal_connect (tree_view->priv->model,
"rows-reordered",
G_CALLBACK (gtk_tree_view_rows_reordered),
tree_view);
flags = gtk_tree_model_get_flags (tree_view->priv->model);
if ((flags & GTK_TREE_MODEL_LIST_ONLY) == GTK_TREE_MODEL_LIST_ONLY)
tree_view->priv->is_list = TRUE;
else
tree_view->priv->is_list = FALSE;
path = gtk_tree_path_new_first ();
if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path))
{
tree_view->priv->tree = gtk_tree_rbtree_new ();
gtk_tree_view_build_tree (tree_view, tree_view->priv->tree, &iter, 1, FALSE);
_gtk_tree_view_accessible_add (tree_view, tree_view->priv->tree, NULL);
}
gtk_tree_path_free (path);
/* FIXME: do I need to do this? gtk_tree_view_create_buttons (tree_view); */
install_presize_handler (tree_view);
}
gtk_tree_view_real_set_cursor (tree_view, NULL, CURSOR_INVALID);
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_MODEL]);
if (tree_view->priv->selection)
_gtk_tree_selection_emit_changed (tree_view->priv->selection);
if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
/**
* gtk_tree_view_get_selection:
* @tree_view: A #GtkTreeView.
*
* Gets the #GtkTreeSelection associated with @tree_view.
*
* Returns: (transfer none): A #GtkTreeSelection object.
**/
GtkTreeSelection *
gtk_tree_view_get_selection (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return tree_view->priv->selection;
}
static void
gtk_tree_view_do_set_hadjustment (GtkTreeView *tree_view,
GtkAdjustment *adjustment)
{
GtkTreeViewPrivate *priv = tree_view->priv;
if (adjustment && priv->hadjustment == adjustment)
return;
if (priv->hadjustment != NULL)
{
g_signal_handlers_disconnect_by_func (priv->hadjustment,
gtk_tree_view_adjustment_changed,
tree_view);
g_object_unref (priv->hadjustment);
}
if (adjustment == NULL)
adjustment = gtk_adjustment_new (0.0, 0.0, 0.0,
0.0, 0.0, 0.0);
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (gtk_tree_view_adjustment_changed), tree_view);
priv->hadjustment = g_object_ref_sink (adjustment);
/* FIXME: Adjustment should probably be populated here with fresh values, but
* internal details are too complicated for me to decipher right now.
*/
gtk_tree_view_adjustment_changed (NULL, tree_view);
g_object_notify (G_OBJECT (tree_view), "hadjustment");
}
static void
gtk_tree_view_do_set_vadjustment (GtkTreeView *tree_view,
GtkAdjustment *adjustment)
{
GtkTreeViewPrivate *priv = tree_view->priv;
if (adjustment && priv->vadjustment == adjustment)
return;
if (priv->vadjustment != NULL)
{
g_signal_handlers_disconnect_by_func (priv->vadjustment,
gtk_tree_view_adjustment_changed,
tree_view);
g_object_unref (priv->vadjustment);
}
if (adjustment == NULL)
adjustment = gtk_adjustment_new (0.0, 0.0, 0.0,
0.0, 0.0, 0.0);
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (gtk_tree_view_adjustment_changed), tree_view);
priv->vadjustment = g_object_ref_sink (adjustment);
/* FIXME: Adjustment should probably be populated here with fresh values, but
* internal details are too complicated for me to decipher right now.
*/
gtk_tree_view_adjustment_changed (NULL, tree_view);
g_object_notify (G_OBJECT (tree_view), "vadjustment");
}
/* Column and header operations */
/**
* gtk_tree_view_get_headers_visible:
* @tree_view: A #GtkTreeView.
*
* Returns %TRUE if the headers on the @tree_view are visible.
*
* Returns: Whether the headers are visible or not.
**/
gboolean
gtk_tree_view_get_headers_visible (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
return tree_view->priv->headers_visible;
}
/**
* gtk_tree_view_set_headers_visible:
* @tree_view: A #GtkTreeView.
* @headers_visible: %TRUE if the headers are visible
*
* Sets the visibility state of the headers.
**/
void
gtk_tree_view_set_headers_visible (GtkTreeView *tree_view,
gboolean headers_visible)
{
GList *list;
GtkTreeViewColumn *column;
GtkWidget *button;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
headers_visible = !! headers_visible;
if (tree_view->priv->headers_visible == headers_visible)
return;
tree_view->priv->headers_visible = headers_visible == TRUE;
if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
{
if (headers_visible)
{
if (gtk_widget_get_mapped (GTK_WIDGET (tree_view)))
gtk_tree_view_map_buttons (tree_view);
}
else
{
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
button = gtk_tree_view_column_get_button (column);
gtk_widget_hide (button);
gtk_widget_unmap (button);
}
}
}
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_HEADERS_VISIBLE]);
}
/**
* gtk_tree_view_columns_autosize:
* @tree_view: A #GtkTreeView.
*
* Resizes all columns to their optimal width. Only works after the
* treeview has been realized.
**/
void
gtk_tree_view_columns_autosize (GtkTreeView *tree_view)
{
gboolean dirty = FALSE;
GList *list;
GtkTreeViewColumn *column;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
continue;
_gtk_tree_view_column_cell_set_dirty (column, TRUE);
dirty = TRUE;
}
if (dirty)
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
/**
* gtk_tree_view_set_headers_clickable:
* @tree_view: A #GtkTreeView.
* @setting: %TRUE if the columns are clickable.
*
* Allow the column title buttons to be clicked.
**/
void
gtk_tree_view_set_headers_clickable (GtkTreeView *tree_view,
gboolean setting)
{
GList *list;
gboolean changed = FALSE;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
for (list = tree_view->priv->columns; list; list = list->next)
{
if (gtk_tree_view_column_get_clickable (GTK_TREE_VIEW_COLUMN (list->data)) != setting)
{
gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (list->data), setting);
changed = TRUE;
}
}
if (changed)
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_HEADERS_CLICKABLE]);
}
/**
* gtk_tree_view_get_headers_clickable:
* @tree_view: A #GtkTreeView.
*
* Returns whether all header columns are clickable.
*
* Returns: %TRUE if all header columns are clickable, otherwise %FALSE
**/
gboolean
gtk_tree_view_get_headers_clickable (GtkTreeView *tree_view)
{
GList *list;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
for (list = tree_view->priv->columns; list; list = list->next)
if (!gtk_tree_view_column_get_clickable (GTK_TREE_VIEW_COLUMN (list->data)))
return FALSE;
return TRUE;
}
/**
* gtk_tree_view_set_activate_on_single_click:
* @tree_view: a #GtkTreeView
* @single: %TRUE to emit row-activated on a single click
*
* Cause the #GtkTreeView::row-activated signal to be emitted
* on a single click instead of a double click.
**/
void
gtk_tree_view_set_activate_on_single_click (GtkTreeView *tree_view,
gboolean single)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
single = single != FALSE;
if (tree_view->priv->activate_on_single_click == single)
return;
tree_view->priv->activate_on_single_click = single;
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_ACTIVATE_ON_SINGLE_CLICK]);
}
/**
* gtk_tree_view_get_activate_on_single_click:
* @tree_view: a #GtkTreeView
*
* Gets the setting set by gtk_tree_view_set_activate_on_single_click().
*
* Returns: %TRUE if row-activated will be emitted on a single click
**/
gboolean
gtk_tree_view_get_activate_on_single_click (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
return tree_view->priv->activate_on_single_click;
}
/* Public Column functions
*/
/**
* gtk_tree_view_append_column:
* @tree_view: A #GtkTreeView.
* @column: The #GtkTreeViewColumn to add.
*
* Appends @column to the list of columns. If @tree_view has “fixed_height”
* mode enabled, then @column must have its “sizing” property set to be
* GTK_TREE_VIEW_COLUMN_FIXED.
*
* Returns: The number of columns in @tree_view after appending.
**/
gint
gtk_tree_view_append_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
g_return_val_if_fail (gtk_tree_view_column_get_tree_view (column) == NULL, -1);
return gtk_tree_view_insert_column (tree_view, column, -1);
}
/**
* gtk_tree_view_remove_column:
* @tree_view: A #GtkTreeView.
* @column: The #GtkTreeViewColumn to remove.
*
* Removes @column from @tree_view.
*
* Returns: The number of columns in @tree_view after removing.
**/
gint
gtk_tree_view_remove_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
guint position;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
g_return_val_if_fail (gtk_tree_view_column_get_tree_view (column) == GTK_WIDGET (tree_view), -1);
if (tree_view->priv->focus_column == column)
_gtk_tree_view_set_focus_column (tree_view, NULL);
if (tree_view->priv->edited_column == column)
{
gtk_tree_view_stop_editing (tree_view, TRUE);
/* no need to, but just to be sure ... */
tree_view->priv->edited_column = NULL;
}
if (tree_view->priv->expander_column == column)
tree_view->priv->expander_column = NULL;
g_signal_handlers_disconnect_by_func (column,
G_CALLBACK (column_sizing_notify),
tree_view);
position = g_list_index (tree_view->priv->columns, column);
_gtk_tree_view_column_unset_tree_view (column);
tree_view->priv->columns = g_list_remove (tree_view->priv->columns, column);
tree_view->priv->n_columns--;
if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
{
GList *list;
for (list = tree_view->priv->columns; list; list = list->next)
{
GtkTreeViewColumn *tmp_column;
tmp_column = GTK_TREE_VIEW_COLUMN (list->data);
if (gtk_tree_view_column_get_visible (tmp_column))
_gtk_tree_view_column_cell_set_dirty (tmp_column, TRUE);
}
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
_gtk_tree_view_accessible_remove_column (tree_view, column, position);
g_object_unref (column);
g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
return tree_view->priv->n_columns;
}
/**
* gtk_tree_view_insert_column:
* @tree_view: A #GtkTreeView.
* @column: The #GtkTreeViewColumn to be inserted.
* @position: The position to insert @column in.
*
* This inserts the @column into the @tree_view at @position. If @position is
* -1, then the column is inserted at the end. If @tree_view has
* “fixed_height” mode enabled, then @column must have its “sizing” property
* set to be GTK_TREE_VIEW_COLUMN_FIXED.
*
* Returns: The number of columns in @tree_view after insertion.
**/
gint
gtk_tree_view_insert_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
gint position)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
g_return_val_if_fail (gtk_tree_view_column_get_tree_view (column) == NULL, -1);
if (tree_view->priv->fixed_height_mode)
g_return_val_if_fail (gtk_tree_view_column_get_sizing (column)
== GTK_TREE_VIEW_COLUMN_FIXED, -1);
if (position < 0 || position > tree_view->priv->n_columns)
position = tree_view->priv->n_columns;
g_object_ref_sink (column);
g_signal_connect (column, "notify::sizing",
G_CALLBACK (column_sizing_notify), tree_view);
tree_view->priv->columns = g_list_insert (tree_view->priv->columns,
column, position);
tree_view->priv->n_columns++;
gtk_tree_view_update_button_position (tree_view, column);
_gtk_tree_view_column_set_tree_view (column, tree_view);
if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
{
GList *list;
_gtk_tree_view_column_realize_button (column);
for (list = tree_view->priv->columns; list; list = list->next)
{
column = GTK_TREE_VIEW_COLUMN (list->data);
if (gtk_tree_view_column_get_visible (column))
_gtk_tree_view_column_cell_set_dirty (column, TRUE);
}
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
_gtk_tree_view_accessible_add_column (tree_view, column, position);
g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
return tree_view->priv->n_columns;
}
/**
* gtk_tree_view_insert_column_with_attributes:
* @tree_view: A #GtkTreeView
* @position: The position to insert the new column in
* @title: The title to set the header to
* @cell: The #GtkCellRenderer
* @...: A %NULL-terminated list of attributes
*
* Creates a new #GtkTreeViewColumn and inserts it into the @tree_view at
* @position. If @position is -1, then the newly created column is inserted at
* the end. The column is initialized with the attributes given. If @tree_view
* has “fixed_height” mode enabled, then the new column will have its sizing
* property set to be GTK_TREE_VIEW_COLUMN_FIXED.
*
* Returns: The number of columns in @tree_view after insertion.
**/
gint
gtk_tree_view_insert_column_with_attributes (GtkTreeView *tree_view,
gint position,
const gchar *title,
GtkCellRenderer *cell,
...)
{
GtkTreeViewColumn *column;
gchar *attribute;
va_list args;
gint column_id;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
column = gtk_tree_view_column_new ();
if (tree_view->priv->fixed_height_mode)
gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
gtk_tree_view_column_set_title (column, title);
gtk_tree_view_column_pack_start (column, cell, TRUE);
va_start (args, cell);
attribute = va_arg (args, gchar *);
while (attribute != NULL)
{
column_id = va_arg (args, gint);
gtk_tree_view_column_add_attribute (column, cell, attribute, column_id);
attribute = va_arg (args, gchar *);
}
va_end (args);
return gtk_tree_view_insert_column (tree_view, column, position);
}
/**
* gtk_tree_view_insert_column_with_data_func:
* @tree_view: a #GtkTreeView
* @position: Position to insert, -1 for append
* @title: column title
* @cell: cell renderer for column
* @func: function to set attributes of cell renderer
* @data: data for @func
* @dnotify: destroy notifier for @data
*
* Convenience function that inserts a new column into the #GtkTreeView
* with the given cell renderer and a #GtkTreeCellDataFunc to set cell renderer
* attributes (normally using data from the model). See also
* gtk_tree_view_column_set_cell_data_func(), gtk_tree_view_column_pack_start().
* If @tree_view has “fixed_height” mode enabled, then the new column will have its
* “sizing” property set to be GTK_TREE_VIEW_COLUMN_FIXED.
*
* Returns: number of columns in the tree view post-insert
**/
gint
gtk_tree_view_insert_column_with_data_func (GtkTreeView *tree_view,
gint position,
const gchar *title,
GtkCellRenderer *cell,
GtkTreeCellDataFunc func,
gpointer data,
GDestroyNotify dnotify)
{
GtkTreeViewColumn *column;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
column = gtk_tree_view_column_new ();
if (tree_view->priv->fixed_height_mode)
gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
gtk_tree_view_column_set_title (column, title);
gtk_tree_view_column_pack_start (column, cell, TRUE);
gtk_tree_view_column_set_cell_data_func (column, cell, func, data, dnotify);
return gtk_tree_view_insert_column (tree_view, column, position);
}
/**
* gtk_tree_view_get_n_columns:
* @tree_view: a #GtkTreeView
*
* Queries the number of columns in the given @tree_view.
*
* Returns: The number of columns in the @tree_view
**/
guint
gtk_tree_view_get_n_columns (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
return tree_view->priv->n_columns;
}
/**
* gtk_tree_view_get_column:
* @tree_view: A #GtkTreeView.
* @n: The position of the column, counting from 0.
*
* Gets the #GtkTreeViewColumn at the given position in the #tree_view.
*
* Returns: (nullable) (transfer none): The #GtkTreeViewColumn, or %NULL if the
* position is outside the range of columns.
**/
GtkTreeViewColumn *
gtk_tree_view_get_column (GtkTreeView *tree_view,
gint n)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
if (n < 0 || n >= tree_view->priv->n_columns)
return NULL;
if (tree_view->priv->columns == NULL)
return NULL;
return GTK_TREE_VIEW_COLUMN (g_list_nth (tree_view->priv->columns, n)->data);
}
/**
* gtk_tree_view_get_columns:
* @tree_view: A #GtkTreeView
*
* Returns a #GList of all the #GtkTreeViewColumn s currently in @tree_view.
* The returned list must be freed with g_list_free ().
*
* Returns: (element-type GtkTreeViewColumn) (transfer container): A list of #GtkTreeViewColumn s
**/
GList *
gtk_tree_view_get_columns (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return g_list_copy (tree_view->priv->columns);
}
/**
* gtk_tree_view_move_column_after:
* @tree_view: A #GtkTreeView
* @column: The #GtkTreeViewColumn to be moved.
* @base_column: (allow-none): The #GtkTreeViewColumn to be moved relative to, or %NULL.
*
* Moves @column to be after to @base_column. If @base_column is %NULL, then
* @column is placed in the first position.
**/
void
gtk_tree_view_move_column_after (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
GtkTreeViewColumn *base_column)
{
GList *column_list_el, *base_el = NULL;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
column_list_el = g_list_find (tree_view->priv->columns, column);
g_return_if_fail (column_list_el != NULL);
if (base_column)
{
base_el = g_list_find (tree_view->priv->columns, base_column);
g_return_if_fail (base_el != NULL);
}
if (column_list_el->prev == base_el)
return;
tree_view->priv->columns = g_list_remove_link (tree_view->priv->columns, column_list_el);
if (base_el == NULL)
{
column_list_el->prev = NULL;
column_list_el->next = tree_view->priv->columns;
if (column_list_el->next)
column_list_el->next->prev = column_list_el;
tree_view->priv->columns = column_list_el;
}
else
{
column_list_el->prev = base_el;
column_list_el->next = base_el->next;
if (column_list_el->next)
column_list_el->next->prev = column_list_el;
base_el->next = column_list_el;
}
gtk_tree_view_update_button_position (tree_view, column);
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
_gtk_tree_view_accessible_reorder_column (tree_view, column);
g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
}
/**
* gtk_tree_view_set_expander_column:
* @tree_view: A #GtkTreeView
* @column: (nullable): %NULL, or the column to draw the expander arrow at.
*
* Sets the column to draw the expander arrow at. It must be in @tree_view.
* If @column is %NULL, then the expander arrow is always at the first
* visible column.
*
* If you do not want expander arrow to appear in your tree, set the
* expander column to a hidden column.
**/
void
gtk_tree_view_set_expander_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
g_return_if_fail (column == NULL || gtk_tree_view_column_get_tree_view (column) == GTK_WIDGET (tree_view));
if (tree_view->priv->expander_column != column)
{
tree_view->priv->expander_column = column;
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_EXPANDER_COLUMN]);
}
}
/**
* gtk_tree_view_get_expander_column:
* @tree_view: A #GtkTreeView
*
* Returns the column that is the current expander column.
* This column has the expander arrow drawn next to it.
*
* Returns: (transfer none): The expander column.
**/
GtkTreeViewColumn *
gtk_tree_view_get_expander_column (GtkTreeView *tree_view)
{
GList *list;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
for (list = tree_view->priv->columns; list; list = list->next)
if (gtk_tree_view_is_expander_column (tree_view, GTK_TREE_VIEW_COLUMN (list->data)))
return (GtkTreeViewColumn *) list->data;
return NULL;
}
/**
* gtk_tree_view_set_column_drag_function:
* @tree_view: A #GtkTreeView.
* @func: (allow-none): A function to determine which columns are reorderable, or %NULL.
* @user_data: (allow-none): User data to be passed to @func, or %NULL
* @destroy: (allow-none): Destroy notifier for @user_data, or %NULL
*
* Sets a user function for determining where a column may be dropped when
* dragged. This function is called on every column pair in turn at the
* beginning of a column drag to determine where a drop can take place. The
* arguments passed to @func are: the @tree_view, the #GtkTreeViewColumn being
* dragged, the two #GtkTreeViewColumn s determining the drop spot, and
* @user_data. If either of the #GtkTreeViewColumn arguments for the drop spot
* are %NULL, then they indicate an edge. If @func is set to be %NULL, then
* @tree_view reverts to the default behavior of allowing all columns to be
* dropped everywhere.
**/
void
gtk_tree_view_set_column_drag_function (GtkTreeView *tree_view,
GtkTreeViewColumnDropFunc func,
gpointer user_data,
GDestroyNotify destroy)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tree_view->priv->column_drop_func_data_destroy)
tree_view->priv->column_drop_func_data_destroy (tree_view->priv->column_drop_func_data);
tree_view->priv->column_drop_func = func;
tree_view->priv->column_drop_func_data = user_data;
tree_view->priv->column_drop_func_data_destroy = destroy;
}
/**
* gtk_tree_view_scroll_to_point:
* @tree_view: a #GtkTreeView
* @tree_x: X coordinate of new top-left pixel of visible area, or -1
* @tree_y: Y coordinate of new top-left pixel of visible area, or -1
*
* Scrolls the tree view such that the top-left corner of the visible
* area is @tree_x, @tree_y, where @tree_x and @tree_y are specified
* in tree coordinates. The @tree_view must be realized before
* this function is called. If it isn't, you probably want to be
* using gtk_tree_view_scroll_to_cell().
*
* If either @tree_x or @tree_y are -1, then that direction isn’t scrolled.
**/
void
gtk_tree_view_scroll_to_point (GtkTreeView *tree_view,
gint tree_x,
gint tree_y)
{
GtkAdjustment *hadj;
GtkAdjustment *vadj;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (gtk_widget_get_realized (GTK_WIDGET (tree_view)));
hadj = tree_view->priv->hadjustment;
vadj = tree_view->priv->vadjustment;
if (tree_x != -1)
gtk_adjustment_animate_to_value (hadj, tree_x);
if (tree_y != -1)
gtk_adjustment_animate_to_value (vadj, tree_y);
}
/**
* gtk_tree_view_scroll_to_cell:
* @tree_view: A #GtkTreeView.
* @path: (allow-none): The path of the row to move to, or %NULL.
* @column: (allow-none): The #GtkTreeViewColumn to move horizontally to, or %NULL.
* @use_align: whether to use alignment arguments, or %FALSE.
* @row_align: The vertical alignment of the row specified by @path.
* @col_align: The horizontal alignment of the column specified by @column.
*
* Moves the alignments of @tree_view to the position specified by @column and
* @path. If @column is %NULL, then no horizontal scrolling occurs. Likewise,
* if @path is %NULL no vertical scrolling occurs. At a minimum, one of @column
* or @path need to be non-%NULL. @row_align determines where the row is
* placed, and @col_align determines where @column is placed. Both are expected
* to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means
* right/bottom alignment, 0.5 means center.
*
* If @use_align is %FALSE, then the alignment arguments are ignored, and the
* tree does the minimum amount of work to scroll the cell onto the screen.
* This means that the cell will be scrolled to the edge closest to its current
* position. If the cell is currently visible on the screen, nothing is done.
*
* This function only works if the model is set, and @path is a valid row on the
* model. If the model changes before the @tree_view is realized, the centered
* path will be modified to reflect this change.
**/
void
gtk_tree_view_scroll_to_cell (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column,
gboolean use_align,
gfloat row_align,
gfloat col_align)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (tree_view->priv->model != NULL);
g_return_if_fail (tree_view->priv->tree != NULL);
g_return_if_fail (row_align >= 0.0 && row_align <= 1.0);
g_return_if_fail (col_align >= 0.0 && col_align <= 1.0);
g_return_if_fail (path != NULL || column != NULL);
row_align = CLAMP (row_align, 0.0, 1.0);
col_align = CLAMP (col_align, 0.0, 1.0);
/* Note: Despite the benefits that come from having one code path for the
* scrolling code, we short-circuit validate_visible_area's immplementation as
* it is much slower than just going to the point.
*/
if (!gtk_widget_get_visible (GTK_WIDGET (tree_view)) ||
!gtk_widget_get_realized (GTK_WIDGET (tree_view)) ||
_gtk_widget_get_alloc_needed (GTK_WIDGET (tree_view)) ||
GTK_TREE_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_TREE_RBNODE_DESCENDANTS_INVALID))
{
if (tree_view->priv->scroll_to_path)
gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
tree_view->priv->scroll_to_path = NULL;
tree_view->priv->scroll_to_column = NULL;
if (path)
tree_view->priv->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
if (column)
tree_view->priv->scroll_to_column = column;
tree_view->priv->scroll_to_use_align = use_align;
tree_view->priv->scroll_to_row_align = row_align;
tree_view->priv->scroll_to_col_align = col_align;
install_presize_handler (tree_view);
}
else
{
GdkRectangle cell_rect;
GdkRectangle vis_rect;
gint dest_x, dest_y;
gtk_tree_view_get_background_area (tree_view, path, column, &cell_rect);
gtk_tree_view_get_visible_rect (tree_view, &vis_rect);
cell_rect.y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, cell_rect.y);
dest_x = vis_rect.x;
dest_y = vis_rect.y;
if (column)
{
if (use_align)
{
dest_x = cell_rect.x - ((vis_rect.width - cell_rect.width) * col_align);
}
else
{
if (cell_rect.x < vis_rect.x)
dest_x = cell_rect.x;
if (cell_rect.x + cell_rect.width > vis_rect.x + vis_rect.width)
dest_x = cell_rect.x + cell_rect.width - vis_rect.width;
}
}
if (path)
{
if (use_align)
{
dest_y = cell_rect.y - ((vis_rect.height - cell_rect.height) * row_align);
dest_y = MAX (dest_y, 0);
}
else
{
if (cell_rect.y < vis_rect.y)
dest_y = cell_rect.y;
if (cell_rect.y + cell_rect.height > vis_rect.y + vis_rect.height)
dest_y = cell_rect.y + cell_rect.height - vis_rect.height;
}
}
gtk_tree_view_scroll_to_point (tree_view, dest_x, dest_y);
}
}
/**
* gtk_tree_view_row_activated:
* @tree_view: A #GtkTreeView
* @path: The #GtkTreePath to be activated.
* @column: The #GtkTreeViewColumn to be activated.
*
* Activates the cell determined by @path and @column.
**/
void
gtk_tree_view_row_activated (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_signal_emit (tree_view, tree_view_signals[ROW_ACTIVATED], 0, path, column);
}
static void
gtk_tree_view_expand_all_emission_helper (GtkTreeRBTree *tree,
GtkTreeRBNode *node,
gpointer data)
{
GtkTreeView *tree_view = data;
if ((node->flags & GTK_TREE_RBNODE_IS_PARENT) == GTK_TREE_RBNODE_IS_PARENT &&
node->children)
{
GtkTreePath *path;
GtkTreeIter iter;
path = _gtk_tree_path_new_from_rbtree (tree, node);
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
gtk_tree_path_free (path);
}
if (node->children)
gtk_tree_rbtree_traverse (node->children,
node->children->root,
G_PRE_ORDER,
gtk_tree_view_expand_all_emission_helper,
tree_view);
}
/**
* gtk_tree_view_expand_all:
* @tree_view: A #GtkTreeView.
*
* Recursively expands all nodes in the @tree_view.
**/
void
gtk_tree_view_expand_all (GtkTreeView *tree_view)
{
GtkTreePath *path;
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tree_view->priv->tree == NULL)
return;
path = gtk_tree_path_new_first ();
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
while (node)
{
gtk_tree_view_real_expand_row (tree_view, path, tree, node, TRUE, FALSE);
node = gtk_tree_rbtree_next (tree, node);
gtk_tree_path_next (path);
}
gtk_tree_path_free (path);
}
/**
* gtk_tree_view_collapse_all:
* @tree_view: A #GtkTreeView.
*
* Recursively collapses all visible, expanded nodes in @tree_view.
**/
void
gtk_tree_view_collapse_all (GtkTreeView *tree_view)
{
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
GtkTreePath *path;
gint *indices;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tree_view->priv->tree == NULL)
return;
path = gtk_tree_path_new ();
gtk_tree_path_down (path);
indices = gtk_tree_path_get_indices (path);
tree = tree_view->priv->tree;
node = gtk_tree_rbtree_first (tree);
while (node)
{
if (node->children)
gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
indices[0]++;
node = gtk_tree_rbtree_next (tree, node);
}
gtk_tree_path_free (path);
}
/**
* gtk_tree_view_expand_to_path:
* @tree_view: A #GtkTreeView.
* @path: path to a row.
*
* Expands the row at @path. This will also expand all parent rows of
* @path as necessary.
**/
void
gtk_tree_view_expand_to_path (GtkTreeView *tree_view,
GtkTreePath *path)
{
gint i, depth;
gint *indices;
GtkTreePath *tmp;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (path != NULL);
depth = gtk_tree_path_get_depth (path);
indices = gtk_tree_path_get_indices (path);
tmp = gtk_tree_path_new ();
g_return_if_fail (tmp != NULL);
for (i = 0; i < depth; i++)
{
gtk_tree_path_append_index (tmp, indices[i]);
gtk_tree_view_expand_row (tree_view, tmp, FALSE);
}
gtk_tree_path_free (tmp);
}
/* FIXME the bool return values for expand_row and collapse_row are
* not analagous; they should be TRUE if the row had children and
* was not already in the requested state.
*/
static gboolean
gtk_tree_view_real_expand_row (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeRBTree *tree,
GtkTreeRBNode *node,
gboolean open_all,
gboolean animate)
{
GtkTreeIter iter;
GtkTreeIter temp;
gboolean expand;
if (animate)
animate = gtk_settings_get_enable_animations (gtk_widget_get_settings (GTK_WIDGET (tree_view)));
remove_auto_expand_timeout (tree_view);
if (node->children && !open_all)
return FALSE;
if (! GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT))
return FALSE;
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
if (! gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
return FALSE;
if (node->children && open_all)
{
gboolean retval = FALSE;
GtkTreePath *tmp_path = gtk_tree_path_copy (path);
gtk_tree_path_append_index (tmp_path, 0);
tree = node->children;
node = gtk_tree_rbtree_first (tree);
/* try to expand the children */
do
{
gboolean t;
t = gtk_tree_view_real_expand_row (tree_view, tmp_path, tree, node,
TRUE, animate);
if (t)
retval = TRUE;
gtk_tree_path_next (tmp_path);
node = gtk_tree_rbtree_next (tree, node);
}
while (node != NULL);
gtk_tree_path_free (tmp_path);
return retval;
}
g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, &iter, path, &expand);
if (!gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
return FALSE;
if (expand)
return FALSE;
node->children = gtk_tree_rbtree_new ();
node->children->parent_tree = tree;
node->children->parent_node = node;
gtk_tree_model_iter_children (tree_view->priv->model, &temp, &iter);
gtk_tree_view_build_tree (tree_view,
node->children,
&temp,
gtk_tree_path_get_depth (path) + 1,
open_all);
_gtk_tree_view_accessible_add (tree_view, node->children, NULL);
_gtk_tree_view_accessible_add_state (tree_view,
tree, node,
GTK_CELL_RENDERER_EXPANDED);
install_presize_handler (tree_view);
g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
if (open_all && node->children)
{
gtk_tree_rbtree_traverse (node->children,
node->children->root,
G_PRE_ORDER,
gtk_tree_view_expand_all_emission_helper,
tree_view);
}
return TRUE;
}
/**
* gtk_tree_view_expand_row:
* @tree_view: a #GtkTreeView
* @path: path to a row
* @open_all: whether to recursively expand, or just expand immediate children
*
* Opens the row so its children are visible.
*
* Returns: %TRUE if the row existed and had children
**/
gboolean
gtk_tree_view_expand_row (GtkTreeView *tree_view,
GtkTreePath *path,
gboolean open_all)
{
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
g_return_val_if_fail (tree_view->priv->model != NULL, FALSE);
g_return_val_if_fail (path != NULL, FALSE);
if (_gtk_tree_view_find_node (tree_view,
path,
&tree,
&node))
return FALSE;
if (tree != NULL)
return gtk_tree_view_real_expand_row (tree_view, path, tree, node, open_all, FALSE);
else
return FALSE;
}
static gboolean
gtk_tree_view_real_collapse_row (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeRBTree *tree,
GtkTreeRBNode *node,
gboolean animate)
{
GtkTreeIter iter;
GtkTreeIter children;
gboolean collapse;
GList *list;
gboolean selection_changed, cursor_changed;
if (animate)
animate = gtk_settings_get_enable_animations (gtk_widget_get_settings (GTK_WIDGET (tree_view)));
remove_auto_expand_timeout (tree_view);
if (node->children == NULL)
return FALSE;
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
g_signal_emit (tree_view, tree_view_signals[TEST_COLLAPSE_ROW], 0, &iter, path, &collapse);
if (collapse)
return FALSE;
/* if the prelighted node is a child of us, we want to unprelight it. We have
* a chance to prelight the correct node below */
if (tree_view->priv->prelight_tree)
{
GtkTreeRBTree *parent_tree;
GtkTreeRBNode *parent_node;
parent_tree = tree_view->priv->prelight_tree->parent_tree;
parent_node = tree_view->priv->prelight_tree->parent_node;
while (parent_tree)
{
if (parent_tree == tree && parent_node == node)
{
ensure_unprelighted (tree_view);
break;
}
parent_node = parent_tree->parent_node;
parent_tree = parent_tree->parent_tree;
}
}
TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_children (tree_view->priv->model, &children, &iter), FALSE);
for (list = tree_view->priv->columns; list; list = list->next)
{
GtkTreeViewColumn *column = list->data;
if (gtk_tree_view_column_get_visible (column) == FALSE)
continue;
if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
_gtk_tree_view_column_cell_set_dirty (column, TRUE);
}
if (tree_view->priv->cursor_node)
{
cursor_changed = (node->children == tree_view->priv->cursor_tree)
|| gtk_tree_rbtree_contains (node->children, tree_view->priv->cursor_tree);
}
else
cursor_changed = FALSE;
if (gtk_tree_row_reference_valid (tree_view->priv->anchor))
{
GtkTreePath *anchor_path = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
if (gtk_tree_path_is_ancestor (path, anchor_path))
{
gtk_tree_row_reference_free (tree_view->priv->anchor);
tree_view->priv->anchor = NULL;
}
gtk_tree_path_free (anchor_path);
}
selection_changed = gtk_tree_view_unref_and_check_selection_tree (tree_view, node->children);
/* Stop a pending double click */
gtk_event_controller_reset (GTK_EVENT_CONTROLLER (tree_view->priv->click_gesture));
_gtk_tree_view_accessible_remove (tree_view, node->children, NULL);
_gtk_tree_view_accessible_remove_state (tree_view,
tree, node,
GTK_CELL_RENDERER_EXPANDED);
gtk_tree_rbtree_remove (node->children);
if (cursor_changed)
gtk_tree_view_real_set_cursor (tree_view, path, CLEAR_AND_SELECT | CURSOR_INVALID);
if (selection_changed)
g_signal_emit_by_name (tree_view->priv->selection, "changed");
if (gtk_widget_get_mapped (GTK_WIDGET (tree_view)))
{
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
g_signal_emit (tree_view, tree_view_signals[ROW_COLLAPSED], 0, &iter, path);
if (gtk_widget_get_mapped (GTK_WIDGET (tree_view)))
update_prelight (tree_view,
tree_view->priv->event_last_x,
tree_view->priv->event_last_y);
return TRUE;
}
/**
* gtk_tree_view_collapse_row:
* @tree_view: a #GtkTreeView
* @path: path to a row in the @tree_view
*
* Collapses a row (hides its child rows, if they exist).
*
* Returns: %TRUE if the row was collapsed.
**/
gboolean
gtk_tree_view_collapse_row (GtkTreeView *tree_view,
GtkTreePath *path)
{
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE);
g_return_val_if_fail (path != NULL, FALSE);
if (_gtk_tree_view_find_node (tree_view,
path,
&tree,
&node))
return FALSE;
if (tree == NULL || node->children == NULL)
return FALSE;
return gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
}
static void
gtk_tree_view_map_expanded_rows_helper (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
GtkTreePath *path,
GtkTreeViewMappingFunc func,
gpointer user_data)
{
GtkTreeRBNode *node;
if (tree == NULL || tree->root == NULL)
return;
node = gtk_tree_rbtree_first (tree);
while (node)
{
if (node->children)
{
(* func) (tree_view, path, user_data);
gtk_tree_path_down (path);
gtk_tree_view_map_expanded_rows_helper (tree_view, node->children, path, func, user_data);
gtk_tree_path_up (path);
}
gtk_tree_path_next (path);
node = gtk_tree_rbtree_next (tree, node);
}
}
/**
* gtk_tree_view_map_expanded_rows:
* @tree_view: A #GtkTreeView
* @func: (scope call): A function to be called
* @data: User data to be passed to the function.
*
* Calls @func on all expanded rows.
**/
void
gtk_tree_view_map_expanded_rows (GtkTreeView *tree_view,
GtkTreeViewMappingFunc func,
gpointer user_data)
{
GtkTreePath *path;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (func != NULL);
path = gtk_tree_path_new_first ();
gtk_tree_view_map_expanded_rows_helper (tree_view,
tree_view->priv->tree,
path, func, user_data);
gtk_tree_path_free (path);
}
/**
* gtk_tree_view_row_expanded:
* @tree_view: A #GtkTreeView.
* @path: A #GtkTreePath to test expansion state.
*
* Returns %TRUE if the node pointed to by @path is expanded in @tree_view.
*
* Returns: %TRUE if #path is expanded.
**/
gboolean
gtk_tree_view_row_expanded (GtkTreeView *tree_view,
GtkTreePath *path)
{
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
g_return_val_if_fail (path != NULL, FALSE);
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
if (node == NULL)
return FALSE;
return (node->children != NULL);
}
/**
* gtk_tree_view_get_reorderable:
* @tree_view: a #GtkTreeView
*
* Retrieves whether the user can reorder the tree via drag-and-drop. See
* gtk_tree_view_set_reorderable().
*
* Returns: %TRUE if the tree can be reordered.
**/
gboolean
gtk_tree_view_get_reorderable (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
return tree_view->priv->reorderable;
}
/**
* gtk_tree_view_set_reorderable:
* @tree_view: A #GtkTreeView.
* @reorderable: %TRUE, if the tree can be reordered.
*
* This function is a convenience function to allow you to reorder
* models that support the #GtkTreeDragSourceIface and the
* #GtkTreeDragDestIface. Both #GtkTreeStore and #GtkListStore support
* these. If @reorderable is %TRUE, then the user can reorder the
* model by dragging and dropping rows. The developer can listen to
* these changes by connecting to the model’s #GtkTreeModel::row-inserted
* and #GtkTreeModel::row-deleted signals. The reordering is implemented
* by setting up the tree view as a drag source and destination.
* Therefore, drag and drop can not be used in a reorderable view for any
* other purpose.
*
* This function does not give you any degree of control over the order -- any
* reordering is allowed. If more control is needed, you should probably
* handle drag and drop manually.
**/
void
gtk_tree_view_set_reorderable (GtkTreeView *tree_view,
gboolean reorderable)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
reorderable = reorderable != FALSE;
if (tree_view->priv->reorderable == reorderable)
return;
if (reorderable)
{
const char *row_targets[] = {
"GTK_TREE_MODEL_ROW"
};
GdkContentFormats *formats;
formats = gdk_content_formats_new (row_targets, G_N_ELEMENTS (row_targets));
gtk_tree_view_enable_model_drag_source (tree_view,
GDK_BUTTON1_MASK,
formats,
GDK_ACTION_MOVE);
gtk_tree_view_enable_model_drag_dest (tree_view,
formats,
GDK_ACTION_MOVE);
gdk_content_formats_unref (formats);
}
else
{
gtk_tree_view_unset_rows_drag_source (tree_view);
gtk_tree_view_unset_rows_drag_dest (tree_view);
}
tree_view->priv->reorderable = reorderable;
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_REORDERABLE]);
}
static void
gtk_tree_view_real_set_cursor (GtkTreeView *tree_view,
GtkTreePath *path,
SetCursorFlags flags)
{
if (!(flags & CURSOR_INVALID) && tree_view->priv->cursor_node)
{
_gtk_tree_view_accessible_remove_state (tree_view,
tree_view->priv->cursor_tree,
tree_view->priv->cursor_node,
GTK_CELL_RENDERER_FOCUSED);
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
/* One cannot set the cursor on a separator. Also, if
* _gtk_tree_view_find_node returns TRUE, it ran out of tree
* before finding the tree and node belonging to path. The
* path maps to a non-existing path and we will silently bail out.
* We unset tree and node to avoid further processing.
*/
if (path == NULL ||
row_is_separator (tree_view, NULL, path)
|| _gtk_tree_view_find_node (tree_view,
path,
&tree_view->priv->cursor_tree,
&tree_view->priv->cursor_node))
{
tree_view->priv->cursor_tree = NULL;
tree_view->priv->cursor_node = NULL;
}
if (tree_view->priv->cursor_node != NULL)
{
GtkTreeRBTree *new_tree = NULL;
GtkTreeRBNode *new_node = NULL;
if ((flags & CLEAR_AND_SELECT) && !tree_view->priv->modify_selection_pressed)
{
GtkTreeSelectMode mode = 0;
if (tree_view->priv->extend_selection_pressed)
mode |= GTK_TREE_SELECT_MODE_EXTEND;
_gtk_tree_selection_internal_select_node (tree_view->priv->selection,
tree_view->priv->cursor_node,
tree_view->priv->cursor_tree,
path,
mode,
FALSE);
}
/* We have to re-find tree and node here again, somebody might have
* cleared the node or the whole tree in the GtkTreeSelection::changed
* callback. If the nodes differ we bail out here.
*/
_gtk_tree_view_find_node (tree_view, path, &new_tree, &new_node);
if (tree_view->priv->cursor_node == NULL ||
tree_view->priv->cursor_node != new_node)
return;
if (flags & CLAMP_NODE)
{
gtk_tree_view_clamp_node_visible (tree_view,
tree_view->priv->cursor_tree,
tree_view->priv->cursor_node);
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
_gtk_tree_view_accessible_add_state (tree_view,
tree_view->priv->cursor_tree,
tree_view->priv->cursor_node,
GTK_CELL_RENDERER_FOCUSED);
}
if (!gtk_widget_in_destruction (GTK_WIDGET (tree_view)))
g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
}
/**
* gtk_tree_view_get_cursor:
* @tree_view: A #GtkTreeView
* @path: (out) (transfer full) (optional) (nullable): A pointer to be
* filled with the current cursor path, or %NULL
* @focus_column: (out) (transfer none) (optional) (nullable): A
* pointer to be filled with the current focus column, or %NULL
*
* Fills in @path and @focus_column with the current path and focus column. If
* the cursor isn’t currently set, then *@path will be %NULL. If no column
* currently has focus, then *@focus_column will be %NULL.
*
* The returned #GtkTreePath must be freed with gtk_tree_path_free() when
* you are done with it.
**/
void
gtk_tree_view_get_cursor (GtkTreeView *tree_view,
GtkTreePath **path,
GtkTreeViewColumn **focus_column)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (path)
{
if (tree_view->priv->cursor_node)
*path = _gtk_tree_path_new_from_rbtree (tree_view->priv->cursor_tree,
tree_view->priv->cursor_node);
else
*path = NULL;
}
if (focus_column)
{
*focus_column = tree_view->priv->focus_column;
}
}
/**
* gtk_tree_view_set_cursor:
* @tree_view: A #GtkTreeView
* @path: A #GtkTreePath
* @focus_column: (allow-none): A #GtkTreeViewColumn, or %NULL
* @start_editing: %TRUE if the specified cell should start being edited.
*
* Sets the current keyboard focus to be at @path, and selects it. This is
* useful when you want to focus the user’s attention on a particular row. If
* @focus_column is not %NULL, then focus is given to the column specified by
* it. Additionally, if @focus_column is specified, and @start_editing is
* %TRUE, then editing should be started in the specified cell.
* This function is often followed by @gtk_widget_grab_focus (@tree_view)
* in order to give keyboard focus to the widget. Please note that editing
* can only happen when the widget is realized.
*
* If @path is invalid for @model, the current cursor (if any) will be unset
* and the function will return without failing.
**/
void
gtk_tree_view_set_cursor (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *focus_column,
gboolean start_editing)
{
gtk_tree_view_set_cursor_on_cell (tree_view, path, focus_column,
NULL, start_editing);
}
/**
* gtk_tree_view_set_cursor_on_cell:
* @tree_view: A #GtkTreeView
* @path: A #GtkTreePath
* @focus_column: (allow-none): A #GtkTreeViewColumn, or %NULL
* @focus_cell: (allow-none): A #GtkCellRenderer, or %NULL
* @start_editing: %TRUE if the specified cell should start being edited.
*
* Sets the current keyboard focus to be at @path, and selects it. This is
* useful when you want to focus the user’s attention on a particular row. If
* @focus_column is not %NULL, then focus is given to the column specified by
* it. If @focus_column and @focus_cell are not %NULL, and @focus_column
* contains 2 or more editable or activatable cells, then focus is given to
* the cell specified by @focus_cell. Additionally, if @focus_column is
* specified, and @start_editing is %TRUE, then editing should be started in
* the specified cell. This function is often followed by
* @gtk_widget_grab_focus (@tree_view) in order to give keyboard focus to the
* widget. Please note that editing can only happen when the widget is
* realized.
*
* If @path is invalid for @model, the current cursor (if any) will be unset
* and the function will return without failing.
**/
void
gtk_tree_view_set_cursor_on_cell (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *focus_column,
GtkCellRenderer *focus_cell,
gboolean start_editing)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (path != NULL);
g_return_if_fail (focus_column == NULL || GTK_IS_TREE_VIEW_COLUMN (focus_column));
if (!tree_view->priv->model)
return;
if (focus_cell)
{
g_return_if_fail (focus_column);
g_return_if_fail (GTK_IS_CELL_RENDERER (focus_cell));
}
/* cancel the current editing, if it exists */
if (tree_view->priv->edited_column &&
gtk_cell_area_get_edit_widget
(gtk_cell_layout_get_area (GTK_CELL_LAYOUT (tree_view->priv->edited_column))))
gtk_tree_view_stop_editing (tree_view, TRUE);
gtk_tree_view_real_set_cursor (tree_view, path, CLEAR_AND_SELECT | CLAMP_NODE);
if (focus_column &&
gtk_tree_view_column_get_visible (focus_column))
{
GList *list;
gboolean column_in_tree = FALSE;
for (list = tree_view->priv->columns; list; list = list->next)
if (list->data == focus_column)
{
column_in_tree = TRUE;
break;
}
g_return_if_fail (column_in_tree);
_gtk_tree_view_set_focus_column (tree_view, focus_column);
if (focus_cell)
gtk_tree_view_column_focus_cell (focus_column, focus_cell);
if (start_editing)
gtk_tree_view_start_editing (tree_view, path, TRUE);
}
}
/**
* gtk_tree_view_get_path_at_pos:
* @tree_view: A #GtkTreeView.
* @x: The x position to be identified (relative to bin_window).
* @y: The y position to be identified (relative to bin_window).
* @path: (out) (optional) (nullable): A pointer to a #GtkTreePath
* pointer to be filled in, or %NULL
* @column: (out) (transfer none) (optional) (nullable): A pointer to
* a #GtkTreeViewColumn pointer to be filled in, or %NULL
* @cell_x: (out) (optional): A pointer where the X coordinate
* relative to the cell can be placed, or %NULL
* @cell_y: (out) (optional): A pointer where the Y coordinate
* relative to the cell can be placed, or %NULL
*
* Finds the path at the point (@x, @y), relative to bin_window coordinates.
* That is, @x and @y are relative to an events coordinates. Widget-relative
* coordinates must be converted using
* gtk_tree_view_convert_widget_to_bin_window_coords(). It is primarily for
* things like popup menus. If @path is non-%NULL, then it will be filled
* with the #GtkTreePath at that point. This path should be freed with
* gtk_tree_path_free(). If @column is non-%NULL, then it will be filled
* with the column at that point. @cell_x and @cell_y return the coordinates
* relative to the cell background (i.e. the @background_area passed to
* gtk_cell_renderer_render()). This function is only meaningful if
* @tree_view is realized. Therefore this function will always return %FALSE
* if @tree_view is not realized or does not have a model.
*
* For converting widget coordinates (eg. the ones you get from
* GtkWidget::query-tooltip), please see
* gtk_tree_view_convert_widget_to_bin_window_coords().
*
* Returns: %TRUE if a row exists at that coordinate.
**/
gboolean
gtk_tree_view_get_path_at_pos (GtkTreeView *tree_view,
gint x,
gint y,
GtkTreePath **path,
GtkTreeViewColumn **column,
gint *cell_x,
gint *cell_y)
{
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
gint y_offset;
g_return_val_if_fail (tree_view != NULL, FALSE);
if (path)
*path = NULL;
if (column)
*column = NULL;
if (tree_view->priv->tree == NULL)
return FALSE;
if (x > gtk_adjustment_get_upper (tree_view->priv->hadjustment))
return FALSE;
if (x < 0 || y < 0)
return FALSE;
if (column || cell_x)
{
GtkTreeViewColumn *tmp_column;
GtkTreeViewColumn *last_column = NULL;
GList *list;
gint remaining_x = x;
gboolean found = FALSE;
gboolean rtl;
gint width;
rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list;
list = (rtl ? list->prev : list->next))
{
tmp_column = list->data;
if (gtk_tree_view_column_get_visible (tmp_column) == FALSE)
continue;
last_column = tmp_column;
width = gtk_tree_view_column_get_width (tmp_column);
if (remaining_x < width)
{
found = TRUE;
if (column)
*column = tmp_column;
if (cell_x)
*cell_x = remaining_x;
break;
}
remaining_x -= width;
}
/* If found is FALSE and there is a last_column, then it the remainder
* space is in that area
*/
if (!found)
{
if (last_column)
{
if (column)
*column = last_column;
if (cell_x)
*cell_x = gtk_tree_view_column_get_width (last_column) + remaining_x;
}
else
{
return FALSE;
}
}
}
y_offset = gtk_tree_rbtree_find_offset (tree_view->priv->tree,
TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y),
&tree, &node);
if (tree == NULL)
return FALSE;
if (cell_y)
*cell_y = y_offset;
if (path)
*path = _gtk_tree_path_new_from_rbtree (tree, node);
return TRUE;
}
static inline gint
gtk_tree_view_get_cell_area_height (GtkTreeView *tree_view,
GtkTreeRBNode *node)
{
int expander_size = gtk_tree_view_get_expander_size (tree_view);
int height;
/* The "cell" areas are the cell_area passed in to gtk_cell_renderer_render(),
* i.e. just the cells, no spacing.
*
* The cell area height is at least expander_size - vertical_separator.
* For regular nodes, the height is then at least expander_size. We should
* be able to enforce the expander_size minimum here, because this
* function will not be called for irregular (e.g. separator) rows.
*/
height = gtk_tree_view_get_row_height (tree_view, node);
if (height < expander_size)
height = expander_size;
return height;
}
static inline gint
gtk_tree_view_get_cell_area_y_offset (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
GtkTreeRBNode *node)
{
int offset;
offset = gtk_tree_view_get_row_y_offset (tree_view, tree, node);
return offset;
}
/**
* gtk_tree_view_get_cell_area:
* @tree_view: a #GtkTreeView
* @path: (allow-none): a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
* @column: (allow-none): a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordinates
* @rect: (out): rectangle to fill with cell rect
*
* Fills the bounding rectangle in bin_window coordinates for the cell at the
* row specified by @path and the column specified by @column. If @path is
* %NULL, or points to a path not currently displayed, the @y and @height fields
* of the rectangle will be filled with 0. If @column is %NULL, the @x and @width
* fields will be filled with 0. The sum of all cell rects does not cover the
* entire tree; there are extra pixels in between rows, for example. The
* returned rectangle is equivalent to the @cell_area passed to
* gtk_cell_renderer_render(). This function is only valid if @tree_view is
* realized.
**/
void
gtk_tree_view_get_cell_area (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column,
GdkRectangle *rect)
{
GtkTreeRBTree *tree = NULL;
GtkTreeRBNode *node = NULL;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
g_return_if_fail (rect != NULL);
g_return_if_fail (!column || gtk_tree_view_column_get_tree_view (column) == (GtkWidget *) tree_view);
g_return_if_fail (gtk_widget_get_realized (GTK_WIDGET (tree_view)));
rect->x = 0;
rect->y = 0;
rect->width = 0;
rect->height = 0;
if (column)
{
rect->x = gtk_tree_view_column_get_x_offset (column) + _TREE_VIEW_HORIZONTAL_SEPARATOR / 2;
rect->width = gtk_tree_view_column_get_width (column) - _TREE_VIEW_HORIZONTAL_SEPARATOR;
}
if (path)
{
gboolean ret = _gtk_tree_view_find_node (tree_view, path, &tree, &node);
/* Get vertical coords */
if ((!ret && tree == NULL) || ret)
return;
if (row_is_separator (tree_view, NULL, path))
{
/* There isn't really a "cell area" for separator, so we
* return the y, height values for background area instead.
*/
rect->y = gtk_tree_view_get_row_y_offset (tree_view, tree, node);
rect->height = gtk_tree_view_get_row_height (tree_view, node);
}
else
{
rect->y = gtk_tree_view_get_cell_area_y_offset (tree_view, tree, node);
rect->height = gtk_tree_view_get_cell_area_height (tree_view, node);
}
if (column &&
gtk_tree_view_is_expander_column (tree_view, column))
{
gint depth = gtk_tree_path_get_depth (path);
gboolean rtl;
rtl = _gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
if (!rtl)
rect->x += (depth - 1) * tree_view->priv->level_indentation;
rect->width -= (depth - 1) * tree_view->priv->level_indentation;
if (gtk_tree_view_draw_expanders (tree_view))
{
int expander_size = gtk_tree_view_get_expander_size (tree_view);
if (!rtl)
rect->x += depth * expander_size;
rect->width -= depth * expander_size;
}
rect->width = MAX (rect->width, 0);
}
}
}
static inline gint
gtk_tree_view_get_row_height (GtkTreeView *tree_view,
GtkTreeRBNode *node)
{
int expander_size = gtk_tree_view_get_expander_size (tree_view);
int height;
/* The "background" areas of all rows/cells add up to cover the entire tree.
* The background includes all inter-row and inter-cell spacing.
*
* If the row pointed at by node does not have a height set, we default
* to expander_size, which is the minimum height for regular nodes.
* Non-regular nodes (e.g. separators) can have a height set smaller
* than expander_size and should not be overruled here.
*/
height = GTK_TREE_RBNODE_GET_HEIGHT (node);
if (height <= 0)
height = expander_size;
return height;
}
static inline gint
gtk_tree_view_get_row_y_offset (GtkTreeView *tree_view,
GtkTreeRBTree *tree,
GtkTreeRBNode *node)
{
int offset;
offset = gtk_tree_rbtree_node_find_offset (tree, node);
return RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, offset);
}
/**
* gtk_tree_view_get_background_area:
* @tree_view: a #GtkTreeView
* @path: (allow-none): a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
* @column: (allow-none): a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes
* @rect: (out): rectangle to fill with cell background rect
*
* Fills the bounding rectangle in bin_window coordinates for the cell at the
* row specified by @path and the column specified by @column. If @path is
* %NULL, or points to a node not found in the tree, the @y and @height fields of
* the rectangle will be filled with 0. If @column is %NULL, the @x and @width
* fields will be filled with 0. The returned rectangle is equivalent to the
* @background_area passed to gtk_cell_renderer_render(). These background
* areas tile to cover the entire bin window. Contrast with the @cell_area,
* returned by gtk_tree_view_get_cell_area(), which returns only the cell
* itself, excluding surrounding borders and the tree expander area.
*
**/
void
gtk_tree_view_get_background_area (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column,
GdkRectangle *rect)
{
GtkTreeRBTree *tree = NULL;
GtkTreeRBNode *node = NULL;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
g_return_if_fail (rect != NULL);
rect->x = 0;
rect->y = 0;
rect->width = 0;
rect->height = 0;
if (path)
{
/* Get vertical coords */
if (!_gtk_tree_view_find_node (tree_view, path, &tree, &node) &&
tree == NULL)
return;
rect->y = gtk_tree_view_get_row_y_offset (tree_view, tree, node);
rect->height = gtk_tree_view_get_row_height (tree_view, node);
}
if (column)
{
gint x2 = 0;
gtk_tree_view_get_background_xrange (tree_view, tree, column, &rect->x, &x2);
rect->width = x2 - rect->x;
}
}
/**
* gtk_tree_view_get_visible_rect:
* @tree_view: a #GtkTreeView
* @visible_rect: (out): rectangle to fill
*
* Fills @visible_rect with the currently-visible region of the
* buffer, in tree coordinates. Convert to bin_window coordinates with
* gtk_tree_view_convert_tree_to_bin_window_coords().
* Tree coordinates start at 0,0 for row 0 of the tree, and cover the entire
* scrollable area of the tree.
**/
void
gtk_tree_view_get_visible_rect (GtkTreeView *tree_view,
GdkRectangle *visible_rect)
{
GtkAllocation allocation;
GtkWidget *widget;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
widget = GTK_WIDGET (tree_view);
if (visible_rect)
{
gtk_widget_get_allocation (widget, &allocation);
visible_rect->x = gtk_adjustment_get_value (tree_view->priv->hadjustment);
visible_rect->y = gtk_adjustment_get_value (tree_view->priv->vadjustment);
visible_rect->width = allocation.width;
visible_rect->height = allocation.height - gtk_tree_view_get_effective_header_height (tree_view);
}
}
/**
* gtk_tree_view_convert_widget_to_tree_coords:
* @tree_view: a #GtkTreeView
* @wx: X coordinate relative to the widget
* @wy: Y coordinate relative to the widget
* @tx: (out): return location for tree X coordinate
* @ty: (out): return location for tree Y coordinate
*
* Converts widget coordinates to coordinates for the
* tree (the full scrollable area of the tree).
**/
void
gtk_tree_view_convert_widget_to_tree_coords (GtkTreeView *tree_view,
gint wx,
gint wy,
gint *tx,
gint *ty)
{
gint x, y;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
gtk_tree_view_convert_widget_to_bin_window_coords (tree_view,
wx, wy,
&x, &y);
gtk_tree_view_convert_bin_window_to_tree_coords (tree_view,
x, y,
tx, ty);
}
/**
* gtk_tree_view_convert_tree_to_widget_coords:
* @tree_view: a #GtkTreeView
* @tx: X coordinate relative to the tree
* @ty: Y coordinate relative to the tree
* @wx: (out): return location for widget X coordinate
* @wy: (out): return location for widget Y coordinate
*
* Converts tree coordinates (coordinates in full scrollable area of the tree)
* to widget coordinates.
**/
void
gtk_tree_view_convert_tree_to_widget_coords (GtkTreeView *tree_view,
gint tx,
gint ty,
gint *wx,
gint *wy)
{
gint x, y;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
gtk_tree_view_convert_tree_to_bin_window_coords (tree_view,
tx, ty,
&x, &y);
gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
x, y,
wx, wy);
}
/**
* gtk_tree_view_convert_widget_to_bin_window_coords:
* @tree_view: a #GtkTreeView
* @wx: X coordinate relative to the widget
* @wy: Y coordinate relative to the widget
* @bx: (out): return location for bin_window X coordinate
* @by: (out): return location for bin_window Y coordinate
*
* Converts widget coordinates to coordinates for the bin_window.
**/
void
gtk_tree_view_convert_widget_to_bin_window_coords (GtkTreeView *tree_view,
gint wx,
gint wy,
gint *bx,
gint *by)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (bx)
*bx = wx + gtk_adjustment_get_value (tree_view->priv->hadjustment);
if (by)
*by = wy - gtk_tree_view_get_effective_header_height (tree_view);
}
/**
* gtk_tree_view_convert_bin_window_to_widget_coords:
* @tree_view: a #GtkTreeView
* @bx: bin_window X coordinate
* @by: bin_window Y coordinate
* @wx: (out): return location for widget X coordinate
* @wy: (out): return location for widget Y coordinate
*
* Converts bin_window coordinates to widget relative coordinates.
**/
void
gtk_tree_view_convert_bin_window_to_widget_coords (GtkTreeView *tree_view,
gint bx,
gint by,
gint *wx,
gint *wy)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (wx)
*wx = bx - gtk_adjustment_get_value (tree_view->priv->hadjustment);
if (wy)
*wy = by + gtk_tree_view_get_effective_header_height (tree_view);
}
/**
* gtk_tree_view_convert_tree_to_bin_window_coords:
* @tree_view: a #GtkTreeView
* @tx: tree X coordinate
* @ty: tree Y coordinate
* @bx: (out): return location for X coordinate relative to bin_window
* @by: (out): return location for Y coordinate relative to bin_window
*
* Converts tree coordinates (coordinates in full scrollable area of the tree)
* to bin_window coordinates.
**/
void
gtk_tree_view_convert_tree_to_bin_window_coords (GtkTreeView *tree_view,
gint tx,
gint ty,
gint *bx,
gint *by)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (bx)
*bx = tx;
if (by)
*by = ty - tree_view->priv->dy;
}
/**
* gtk_tree_view_convert_bin_window_to_tree_coords:
* @tree_view: a #GtkTreeView
* @bx: X coordinate relative to bin_window
* @by: Y coordinate relative to bin_window
* @tx: (out): return location for tree X coordinate
* @ty: (out): return location for tree Y coordinate
*
* Converts bin_window coordinates to coordinates for the
* tree (the full scrollable area of the tree).
**/
void
gtk_tree_view_convert_bin_window_to_tree_coords (GtkTreeView *tree_view,
gint bx,
gint by,
gint *tx,
gint *ty)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tx)
*tx = bx;
if (ty)
*ty = by + tree_view->priv->dy;
}
/**
* gtk_tree_view_get_visible_range:
* @tree_view: A #GtkTreeView
* @start_path: (out) (allow-none): Return location for start of region,
* or %NULL.
* @end_path: (out) (allow-none): Return location for end of region, or %NULL.
*
* Sets @start_path and @end_path to be the first and last visible path.
* Note that there may be invisible paths in between.
*
* The paths should be freed with gtk_tree_path_free() after use.
*
* Returns: %TRUE, if valid paths were placed in @start_path and @end_path.
**/
gboolean
gtk_tree_view_get_visible_range (GtkTreeView *tree_view,
GtkTreePath **start_path,
GtkTreePath **end_path)
{
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
gboolean retval;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
if (!tree_view->priv->tree)
return FALSE;
retval = TRUE;
if (start_path)
{
gtk_tree_rbtree_find_offset (tree_view->priv->tree,
TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
&tree, &node);
if (node)
*start_path = _gtk_tree_path_new_from_rbtree (tree, node);
else
retval = FALSE;
}
if (end_path)
{
gint y;
if (gtk_tree_view_get_height (tree_view) < gtk_adjustment_get_page_size (tree_view->priv->vadjustment))
y = gtk_tree_view_get_height (tree_view) - 1;
else
y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, gtk_adjustment_get_page_size (tree_view->priv->vadjustment)) - 1;
gtk_tree_rbtree_find_offset (tree_view->priv->tree, y, &tree, &node);
if (node)
*end_path = _gtk_tree_path_new_from_rbtree (tree, node);
else
retval = FALSE;
}
return retval;
}
/**
* gtk_tree_view_is_blank_at_pos:
* @tree_view: A #GtkTreeView
* @x: The x position to be identified (relative to bin_window)
* @y: The y position to be identified (relative to bin_window)
* @path: (out) (optional) (nullable): A pointer to a #GtkTreePath pointer to
* be filled in, or %NULL
* @column: (out) (transfer none) (optional) (nullable): A pointer to a
* #GtkTreeViewColumn pointer to be filled in, or %NULL
* @cell_x: (out) (optional): A pointer where the X coordinate relative to the
* cell can be placed, or %NULL
* @cell_y: (out) (optional): A pointer where the Y coordinate relative to the
* cell can be placed, or %NULL
*
* Determine whether the point (@x, @y) in @tree_view is blank, that is no
* cell content nor an expander arrow is drawn at the location. If so, the
* location can be considered as the background. You might wish to take
* special action on clicks on the background, such as clearing a current
* selection, having a custom context menu or starting rubber banding.
*
* The @x and @y coordinate that are provided must be relative to bin_window
* coordinates. Widget-relative coordinates must be converted using
* gtk_tree_view_convert_widget_to_bin_window_coords().
*
* For converting widget coordinates (eg. the ones you get from
* GtkWidget::query-tooltip), please see
* gtk_tree_view_convert_widget_to_bin_window_coords().
*
* The @path, @column, @cell_x and @cell_y arguments will be filled in
* likewise as for gtk_tree_view_get_path_at_pos(). Please see
* gtk_tree_view_get_path_at_pos() for more information.
*
* Returns: %TRUE if the area at the given coordinates is blank,
* %FALSE otherwise.
*/
gboolean
gtk_tree_view_is_blank_at_pos (GtkTreeView *tree_view,
gint x,
gint y,
GtkTreePath **path,
GtkTreeViewColumn **column,
gint *cell_x,
gint *cell_y)
{
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
GtkTreeIter iter;
GtkTreePath *real_path;
GtkTreeViewColumn *real_column;
GdkRectangle cell_area, background_area;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
if (!gtk_tree_view_get_path_at_pos (tree_view, x, y,
&real_path, &real_column,
cell_x, cell_y))
/* If there's no path here, it is blank */
return TRUE;
if (path)
*path = real_path;
if (column)
*column = real_column;
gtk_tree_model_get_iter (tree_view->priv->model, &iter, real_path);
_gtk_tree_view_find_node (tree_view, real_path, &tree, &node);
/* Check if there's an expander arrow at (x, y) */
if (real_column == tree_view->priv->expander_column
&& gtk_tree_view_draw_expanders (tree_view))
{
gboolean over_arrow;
over_arrow = coords_are_over_arrow (tree_view, tree, node, x, y);
if (over_arrow)
{
if (!path)
gtk_tree_path_free (real_path);
return FALSE;
}
}
/* Otherwise, have the column see if there's a cell at (x, y) */
gtk_tree_view_column_cell_set_cell_data (real_column,
tree_view->priv->model,
&iter,
GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT),
node->children ? TRUE : FALSE);
gtk_tree_view_get_background_area (tree_view, real_path, real_column,
&background_area);
gtk_tree_view_get_cell_area (tree_view, real_path, real_column,
&cell_area);
if (!path)
gtk_tree_path_free (real_path);
return _gtk_tree_view_column_is_blank_at_pos (real_column,
&cell_area,
&background_area,
x, y);
}
static void
unset_reorderable (GtkTreeView *tree_view)
{
if (tree_view->priv->reorderable)
{
tree_view->priv->reorderable = FALSE;
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_REORDERABLE]);
}
}
/**
* gtk_tree_view_enable_model_drag_source:
* @tree_view: a #GtkTreeView
* @start_button_mask: Mask of allowed buttons to start drag
* @formats: the target formats that the drag will support
* @actions: the bitmask of possible actions for a drag from this
* widget
*
* Turns @tree_view into a drag source for automatic DND. Calling this
* method sets #GtkTreeView:reorderable to %FALSE.
**/
void
gtk_tree_view_enable_model_drag_source (GtkTreeView *tree_view,
GdkModifierType start_button_mask,
GdkContentFormats *formats,
GdkDragAction actions)
{
TreeViewDragInfo *di;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
gtk_drag_source_set (GTK_WIDGET (tree_view),
0,
formats,
actions);
di = ensure_info (tree_view);
di->start_button_mask = start_button_mask;
di->source_actions = actions;
di->source_set = TRUE;
unset_reorderable (tree_view);
}
/**
* gtk_tree_view_enable_model_drag_dest:
* @tree_view: a #GtkTreeView
* @formats: the target formats that the drag will support
* @actions: the bitmask of possible actions for a drag from this
* widget
*
* Turns @tree_view into a drop destination for automatic DND. Calling
* this method sets #GtkTreeView:reorderable to %FALSE.
**/
void
gtk_tree_view_enable_model_drag_dest (GtkTreeView *tree_view,
GdkContentFormats *formats,
GdkDragAction actions)
{
TreeViewDragInfo *di;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
gtk_drag_dest_set (GTK_WIDGET (tree_view),
0,
formats,
actions);
di = ensure_info (tree_view);
di->dest_set = TRUE;
unset_reorderable (tree_view);
}
/**
* gtk_tree_view_unset_rows_drag_source:
* @tree_view: a #GtkTreeView
*
* Undoes the effect of
* gtk_tree_view_enable_model_drag_source(). Calling this method sets
* #GtkTreeView:reorderable to %FALSE.
**/
void
gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view)
{
TreeViewDragInfo *di;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
di = get_info (tree_view);
if (di)
{
if (di->source_set)
{
gtk_drag_source_unset (GTK_WIDGET (tree_view));
di->source_set = FALSE;
}
if (!di->dest_set && !di->source_set)
remove_info (tree_view);
}
unset_reorderable (tree_view);
}
/**
* gtk_tree_view_unset_rows_drag_dest:
* @tree_view: a #GtkTreeView
*
* Undoes the effect of
* gtk_tree_view_enable_model_drag_dest(). Calling this method sets
* #GtkTreeView:reorderable to %FALSE.
**/
void
gtk_tree_view_unset_rows_drag_dest (GtkTreeView *tree_view)
{
TreeViewDragInfo *di;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
di = get_info (tree_view);
if (di)
{
if (di->dest_set)
{
gtk_drag_dest_unset (GTK_WIDGET (tree_view));
di->dest_set = FALSE;
}
if (!di->dest_set && !di->source_set)
remove_info (tree_view);
}
unset_reorderable (tree_view);
}
/**
* gtk_tree_view_set_drag_dest_row:
* @tree_view: a #GtkTreeView
* @path: (allow-none): The path of the row to highlight, or %NULL
* @pos: Specifies whether to drop before, after or into the row
*
* Sets the row that is highlighted for feedback.
* If @path is %NULL, an existing highlight is removed.
*/
void
gtk_tree_view_set_drag_dest_row (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewDropPosition pos)
{
GtkTreePath *current_dest;
/* Note; this function is exported to allow a custom DND
* implementation, so it can't touch TreeViewDragInfo
*/
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
current_dest = NULL;
if (tree_view->priv->drag_dest_row)
{
current_dest = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
}
/* special case a drop on an empty model */
tree_view->priv->empty_view_drop = 0;
if (pos == GTK_TREE_VIEW_DROP_BEFORE && path
&& gtk_tree_path_get_depth (path) == 1
&& gtk_tree_path_get_indices (path)[0] == 0)
{
gint n_children;
n_children = gtk_tree_model_iter_n_children (tree_view->priv->model,
NULL);
if (!n_children)
tree_view->priv->empty_view_drop = 1;
}
tree_view->priv->drag_dest_pos = pos;
if (path)
{
tree_view->priv->drag_dest_row =
gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
else
tree_view->priv->drag_dest_row = NULL;
if (current_dest)
{
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
gtk_tree_path_free (current_dest);
}
}
/**
* gtk_tree_view_get_drag_dest_row:
* @tree_view: a #GtkTreeView
* @path: (out) (optional) (nullable): Return location for the path of the highlighted row, or %NULL.
* @pos: (out) (optional): Return location for the drop position, or %NULL
*
* Gets information about the row that is highlighted for feedback.
**/
void
gtk_tree_view_get_drag_dest_row (GtkTreeView *tree_view,
GtkTreePath **path,
GtkTreeViewDropPosition *pos)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (path)
{
if (tree_view->priv->drag_dest_row)
*path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
else
{
if (tree_view->priv->empty_view_drop)
*path = gtk_tree_path_new_from_indices (0, -1);
else
*path = NULL;
}
}
if (pos)
*pos = tree_view->priv->drag_dest_pos;
}
/**
* gtk_tree_view_get_dest_row_at_pos:
* @tree_view: a #GtkTreeView
* @drag_x: the position to determine the destination row for
* @drag_y: the position to determine the destination row for
* @path: (out) (optional) (nullable): Return location for the path of
* the highlighted row, or %NULL.
* @pos: (out) (optional): Return location for the drop position, or
* %NULL
*
* Determines the destination row for a given position. @drag_x and
* @drag_y are expected to be in widget coordinates. This function is only
* meaningful if @tree_view is realized. Therefore this function will always
* return %FALSE if @tree_view is not realized or does not have a model.
*
* Returns: whether there is a row at the given position, %TRUE if this
* is indeed the case.
**/
gboolean
gtk_tree_view_get_dest_row_at_pos (GtkTreeView *tree_view,
gint drag_x,
gint drag_y,
GtkTreePath **path,
GtkTreeViewDropPosition *pos)
{
gint cell_y;
gint bin_x, bin_y;
gdouble offset_into_row;
gdouble fourth;
GdkRectangle cell;
GtkTreeViewColumn *column = NULL;
GtkTreePath *tmp_path = NULL;
/* Note; this function is exported to allow a custom DND
* implementation, so it can't touch TreeViewDragInfo
*/
g_return_val_if_fail (tree_view != NULL, FALSE);
g_return_val_if_fail (drag_x >= 0, FALSE);
g_return_val_if_fail (drag_y >= 0, FALSE);
if (path)
*path = NULL;
if (tree_view->priv->tree == NULL)
return FALSE;
/* If in the top fourth of a row, we drop before that row; if
* in the bottom fourth, drop after that row; if in the middle,
* and the row has children, drop into the row.
*/
gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, drag_x, drag_y,
&bin_x, &bin_y);
if (!gtk_tree_view_get_path_at_pos (tree_view,
bin_x,
bin_y,
&tmp_path,
&column,
NULL,
&cell_y))
return FALSE;
gtk_tree_view_get_background_area (tree_view, tmp_path, column,
&cell);
offset_into_row = cell_y;
if (path)
*path = tmp_path;
else
gtk_tree_path_free (tmp_path);
tmp_path = NULL;
fourth = cell.height / 4.0;
if (pos)
{
if (offset_into_row < fourth)
{
*pos = GTK_TREE_VIEW_DROP_BEFORE;
}
else if (offset_into_row < (cell.height / 2.0))
{
*pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
}
else if (offset_into_row < cell.height - fourth)
{
*pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER;
}
else
{
*pos = GTK_TREE_VIEW_DROP_AFTER;
}
}
return TRUE;
}
static void
gtk_treeview_snapshot_border (GtkSnapshot *snapshot,
const graphene_rect_t *rect)
{
GskRoundedRect rounded;
GskRenderNode *border_node;
gsk_rounded_rect_init_from_rect (&rounded, rect, 0);
#define BLACK { 0, 0, 0, 1 }
border_node = gsk_border_node_new (&rounded,
(float[4]) { 1, 1, 1, 1 },
(GdkRGBA[4]) { BLACK, BLACK, BLACK, BLACK });
#undef BLACK
gtk_snapshot_append_node (snapshot, border_node);
gsk_render_node_unref (border_node);
}
/* KEEP IN SYNC WITH GTK_TREE_VIEW_BIN_EXPOSE */
/**
* gtk_tree_view_create_row_drag_icon:
* @tree_view: a #GtkTreeView
* @path: a #GtkTreePath in @tree_view
*
* Creates a #cairo_surface_t representation of the row at @path.
* This image is used for a drag icon.
*
* Returns: (transfer full): a newly-allocated surface of the drag icon.
**/
GdkPaintable *
gtk_tree_view_create_row_drag_icon (GtkTreeView *tree_view,
GtkTreePath *path)
{
GtkTreeIter iter;
GtkTreeRBTree *tree;
GtkTreeRBNode *node;
GtkStyleContext *context;
gint cell_offset;
GList *list;
GdkRectangle background_area;
GtkWidget *widget;
GtkSnapshot *snapshot;
GdkPaintable *paintable;
gint depth;
/* start drawing inside the black outline */
gint x = 1, y = 1;
gint bin_window_width;
gboolean is_separator = FALSE;
gboolean rtl;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
g_return_val_if_fail (path != NULL, NULL);
widget = GTK_WIDGET (tree_view);
if (!gtk_widget_get_realized (widget))
return NULL;
depth = gtk_tree_path_get_depth (path);
_gtk_tree_view_find_node (tree_view,
path,
&tree,
&node);
if (tree == NULL)
return NULL;
if (!gtk_tree_model_get_iter (tree_view->priv->model,
&iter,
path))
return NULL;
context = gtk_widget_get_style_context (widget);
is_separator = row_is_separator (tree_view, &iter, NULL);
cell_offset = x;
background_area.y = y;
background_area.height = gtk_tree_view_get_row_height (tree_view, node);
bin_window_width = gtk_widget_get_width (GTK_WIDGET (tree_view));
snapshot = gtk_snapshot_new ();
gtk_snapshot_render_background (snapshot, context,
0, 0,
bin_window_width + 2,
background_area.height + 2);
rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list;
list = (rtl ? list->prev : list->next))
{
GtkTreeViewColumn *column = list->data;
GdkRectangle cell_area;
if (!gtk_tree_view_column_get_visible (column))
continue;
gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, &iter,
GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT),
node->children?TRUE:FALSE);
background_area.x = cell_offset;
background_area.width = gtk_tree_view_column_get_width (column);
cell_area = background_area;
if (gtk_tree_view_is_expander_column (tree_view, column))
{
if (!rtl)
cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
if (gtk_tree_view_draw_expanders (tree_view))
{
int expander_size = gtk_tree_view_get_expander_size (tree_view);
if (!rtl)
cell_area.x += depth * expander_size;
cell_area.width -= depth * expander_size;
}
}
if (gtk_tree_view_column_cell_is_visible (column))
{
if (is_separator)
{
GdkRGBA color;
gtk_style_context_save (context);
gtk_style_context_add_class (context, GTK_STYLE_CLASS_SEPARATOR);
gtk_style_context_get_color (context, &color);
gtk_snapshot_append_color (snapshot,
&color,
&GRAPHENE_RECT_INIT(
cell_area.x,
cell_area.y + cell_area.height / 2,
cell_area.x + cell_area.width,
1
));
gtk_style_context_restore (context);
}
else
{
gtk_tree_view_column_cell_snapshot (column,
snapshot,
&background_area,
&cell_area,
0, FALSE);
}
}
cell_offset += gtk_tree_view_column_get_width (column);
}
gtk_treeview_snapshot_border (snapshot,
&GRAPHENE_RECT_INIT(0, 0, bin_window_width + 2, background_area.height + 2));
paintable = gtk_snapshot_free_to_paintable (snapshot, NULL);
return paintable;
}
/*
* Interactive search
*/
/**
* gtk_tree_view_set_enable_search:
* @tree_view: A #GtkTreeView
* @enable_search: %TRUE, if the user can search interactively
*
* If @enable_search is set, then the user can type in text to search through
* the tree interactively (this is sometimes called "typeahead find").
*
* Note that even if this is %FALSE, the user can still initiate a search
* using the “start-interactive-search” key binding.
*/
void
gtk_tree_view_set_enable_search (GtkTreeView *tree_view,
gboolean enable_search)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
enable_search = !!enable_search;
if (tree_view->priv->enable_search != enable_search)
{
tree_view->priv->enable_search = enable_search;
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_ENABLE_SEARCH]);
}
}
/**
* gtk_tree_view_get_enable_search:
* @tree_view: A #GtkTreeView
*
* Returns whether or not the tree allows to start interactive searching
* by typing in text.
*
* Returns: whether or not to let the user search interactively
*/
gboolean
gtk_tree_view_get_enable_search (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
return tree_view->priv->enable_search;
}
/**
* gtk_tree_view_get_search_column:
* @tree_view: A #GtkTreeView
*
* Gets the column searched on by the interactive search code.
*
* Returns: the column the interactive search code searches in.
*/
gint
gtk_tree_view_get_search_column (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
return (tree_view->priv->search_column);
}
/**
* gtk_tree_view_set_search_column:
* @tree_view: A #GtkTreeView
* @column: the column of the model to search in, or -1 to disable searching
*
* Sets @column as the column where the interactive search code should
* search in for the current model.
*
* If the search column is set, users can use the “start-interactive-search”
* key binding to bring up search popup. The enable-search property controls
* whether simply typing text will also start an interactive search.
*
* Note that @column refers to a column of the current model. The search
* column is reset to -1 when the model is changed.
*/
void
gtk_tree_view_set_search_column (GtkTreeView *tree_view,
gint column)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (column >= -1);
if (tree_view->priv->search_column == column)
return;
tree_view->priv->search_column = column;
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_SEARCH_COLUMN]);
}
/**
* gtk_tree_view_get_search_equal_func: (skip)
* @tree_view: A #GtkTreeView
*
* Returns the compare function currently in use.
*
* Returns: the currently used compare function for the search code.
*/
GtkTreeViewSearchEqualFunc
gtk_tree_view_get_search_equal_func (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return tree_view->priv->search_equal_func;
}
/**
* gtk_tree_view_set_search_equal_func:
* @tree_view: A #GtkTreeView
* @search_equal_func: the compare function to use during the search
* @search_user_data: (allow-none): user data to pass to @search_equal_func, or %NULL
* @search_destroy: (allow-none): Destroy notifier for @search_user_data, or %NULL
*
* Sets the compare function for the interactive search capabilities; note
* that somewhat like strcmp() returning 0 for equality
* #GtkTreeViewSearchEqualFunc returns %FALSE on matches.
**/
void
gtk_tree_view_set_search_equal_func (GtkTreeView *tree_view,
GtkTreeViewSearchEqualFunc search_equal_func,
gpointer search_user_data,
GDestroyNotify search_destroy)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (search_equal_func != NULL);
if (tree_view->priv->search_destroy)
tree_view->priv->search_destroy (tree_view->priv->search_user_data);
tree_view->priv->search_equal_func = search_equal_func;
tree_view->priv->search_user_data = search_user_data;
tree_view->priv->search_destroy = search_destroy;
if (tree_view->priv->search_equal_func == NULL)
tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
}
/**
* gtk_tree_view_get_search_entry:
* @tree_view: A #GtkTreeView
*
* Returns the #GtkEntry which is currently in use as interactive search
* entry for @tree_view. In case the built-in entry is being used, %NULL
* will be returned.
*
* Returns: (transfer none): the entry currently in use as search entry.
*/
GtkEditable *
gtk_tree_view_get_search_entry (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
if (tree_view->priv->search_custom_entry_set)
return GTK_EDITABLE (tree_view->priv->search_entry);
return NULL;
}
/**
* gtk_tree_view_set_search_entry:
* @tree_view: A #GtkTreeView
* @entry: (allow-none): the entry the interactive search code of @tree_view should use or %NULL
*
* Sets the entry which the interactive search code will use for this
* @tree_view. This is useful when you want to provide a search entry
* in our interface at all time at a fixed position. Passing %NULL for
* @entry will make the interactive search code use the built-in popup
* entry again.
*/
void
gtk_tree_view_set_search_entry (GtkTreeView *tree_view,
GtkEditable *entry)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (entry == NULL || GTK_IS_ENTRY (entry) || GTK_IS_SEARCH_ENTRY (entry));
if (tree_view->priv->search_custom_entry_set)
{
if (tree_view->priv->search_entry_changed_id)
{
g_signal_handler_disconnect (tree_view->priv->search_entry,
tree_view->priv->search_entry_changed_id);
tree_view->priv->search_entry_changed_id = 0;
}
g_signal_handlers_disconnect_by_func (gtk_entry_get_key_controller (GTK_ENTRY (tree_view->priv->search_entry)),
G_CALLBACK (gtk_tree_view_search_key_pressed),
tree_view);
g_object_unref (tree_view->priv->search_entry);
}
else if (tree_view->priv->search_window)
{
gtk_tree_view_destroy_search_window (tree_view);
}
if (entry)
{
GtkEventController *controller;
tree_view->priv->search_entry = GTK_WIDGET (g_object_ref (entry));
tree_view->priv->search_custom_entry_set = TRUE;
if (tree_view->priv->search_entry_changed_id == 0)
{
tree_view->priv->search_entry_changed_id =
g_signal_connect (tree_view->priv->search_entry, "changed",
G_CALLBACK (gtk_tree_view_search_init),
tree_view);
}
if (GTK_IS_ENTRY (entry))
controller = gtk_entry_get_key_controller (GTK_ENTRY (entry));
else
controller = gtk_search_entry_get_key_controller (GTK_SEARCH_ENTRY (entry));
g_signal_connect (controller, "key-pressed",
G_CALLBACK (gtk_tree_view_search_key_pressed), tree_view);
gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
}
else
{
tree_view->priv->search_entry = NULL;
tree_view->priv->search_custom_entry_set = FALSE;
}
}
/**
* gtk_tree_view_set_search_position_func:
* @tree_view: A #GtkTreeView
* @func: (allow-none): the function to use to position the search dialog, or %NULL
* to use the default search position function
* @data: (allow-none): user data to pass to @func, or %NULL
* @destroy: (allow-none): Destroy notifier for @data, or %NULL
*
* Sets the function to use when positioning the search dialog.
**/
void
gtk_tree_view_set_search_position_func (GtkTreeView *tree_view,
GtkTreeViewSearchPositionFunc func,
gpointer user_data,
GDestroyNotify destroy)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tree_view->priv->search_position_destroy)
tree_view->priv->search_position_destroy (tree_view->priv->search_position_user_data);
tree_view->priv->search_position_func = func;
tree_view->priv->search_position_user_data = user_data;
tree_view->priv->search_position_destroy = destroy;
if (tree_view->priv->search_position_func == NULL)
tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
}
/**
* gtk_tree_view_get_search_position_func: (skip)
* @tree_view: A #GtkTreeView
*
* Returns the positioning function currently in use.
*
* Returns: the currently used function for positioning the search dialog.
*/
GtkTreeViewSearchPositionFunc
gtk_tree_view_get_search_position_func (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return tree_view->priv->search_position_func;
}
static void
gtk_tree_view_search_window_hide (GtkWidget *search_window,
GtkTreeView *tree_view,
GdkDevice *device)
{
if (tree_view->priv->disable_popdown)
return;
if (tree_view->priv->search_entry_changed_id)
{
g_signal_handler_disconnect (tree_view->priv->search_entry,
tree_view->priv->search_entry_changed_id);
tree_view->priv->search_entry_changed_id = 0;
}
if (tree_view->priv->typeselect_flush_timeout)
{
g_source_remove (tree_view->priv->typeselect_flush_timeout);
tree_view->priv->typeselect_flush_timeout = 0;
}
if (gtk_widget_get_visible (search_window))
{
/* send focus-in event */
send_focus_change (GTK_WIDGET (tree_view->priv->search_entry), device, FALSE);
gtk_widget_hide (search_window);
gtk_editable_set_text (GTK_EDITABLE(tree_view->priv->search_entry), "");
send_focus_change (GTK_WIDGET (tree_view), device, TRUE);
}
}
static void
gtk_tree_view_search_position_func (GtkTreeView *tree_view,
GtkWidget *search_window,
gpointer user_data)
{
}
/* Because we're visible but offscreen, we just set a flag in the preedit
* callback.
*/
static void
gtk_tree_view_search_preedit_changed (GtkText *text,
const char *predit,
GtkTreeView *tree_view)
{
tree_view->priv->imcontext_changed = 1;
if (tree_view->priv->typeselect_flush_timeout)
{
g_source_remove (tree_view->priv->typeselect_flush_timeout);
tree_view->priv->typeselect_flush_timeout =
g_timeout_add (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
(GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
tree_view);
g_source_set_name_by_id (tree_view->priv->typeselect_flush_timeout, "[gtk] gtk_tree_view_search_entry_flush_timeout");
}
}
static void
gtk_tree_view_search_changed (GtkEditable *editable,
GtkTreeView *tree_view)
{
tree_view->priv->imcontext_changed = 1;
}
static void
gtk_tree_view_search_activate (GtkEntry *entry,
GtkTreeView *tree_view)
{
GtkTreePath *path;
gtk_tree_view_search_window_hide (tree_view->priv->search_window,
tree_view,
gtk_get_current_event_device ());
/* If we have a row selected and it's the cursor row, we activate
* the row XXX */
if (tree_view->priv->cursor_node &&
GTK_TREE_RBNODE_FLAG_SET (tree_view->priv->cursor_node, GTK_TREE_RBNODE_IS_SELECTED))
{
path = _gtk_tree_path_new_from_rbtree (tree_view->priv->cursor_tree,
tree_view->priv->cursor_node);
gtk_tree_view_row_activated (tree_view, path, tree_view->priv->focus_column);
gtk_tree_path_free (path);
}
}
static void
gtk_tree_view_search_pressed_cb (GtkGesture *gesture,
int n_press,
double x,
double y,
GtkTreeView *tree_view)
{
GdkDevice *keyb_device;
GdkEventSequence *sequence;
const GdkEvent *event;
GtkWidget *widget;
sequence = gtk_gesture_get_last_updated_sequence (gesture);
event = gtk_gesture_get_last_event (gesture, sequence);
keyb_device = gdk_device_get_associated_device (gdk_event_get_device (event));
widget = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture));
gtk_tree_view_search_window_hide (widget, tree_view, keyb_device);
}
static gboolean
gtk_tree_view_search_scroll_event (GtkWidget *widget,
gdouble dx,
gdouble dy,
GtkTreeView *tree_view)
{
GdkScrollDirection direction;
direction = dy > 0 ? GDK_SCROLL_DOWN : GDK_SCROLL_UP;
if (direction == GDK_SCROLL_UP)
gtk_tree_view_search_move (widget, tree_view, TRUE);
else if (direction == GDK_SCROLL_DOWN)
gtk_tree_view_search_move (widget, tree_view, FALSE);
/* renew the flush timeout */
if (tree_view->priv->typeselect_flush_timeout &&
!tree_view->priv->search_custom_entry_set)
{
g_source_remove (tree_view->priv->typeselect_flush_timeout);
tree_view->priv->typeselect_flush_timeout =
g_timeout_add (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
(GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
tree_view);
g_source_set_name_by_id (tree_view->priv->typeselect_flush_timeout, "[gtk] gtk_tree_view_search_entry_flush_timeout");
}
return GDK_EVENT_STOP;
}
static gboolean
gtk_tree_view_search_key_pressed (GtkEventControllerKey *key,
guint keyval,
guint keycode,
GdkModifierType state,
GtkTreeView *tree_view)
{
GtkWidget *widget = tree_view->priv->search_entry;
GdkModifierType default_accel;
gboolean retval = FALSE;
g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
/* close window and cancel the search */
if (!tree_view->priv->search_custom_entry_set
&& gtk_tree_view_search_key_cancels_search (keyval))
{
gtk_tree_view_search_window_hide (widget, tree_view,
gtk_get_current_event_device ());
return TRUE;
}
default_accel = gtk_widget_get_modifier_mask (widget,
GDK_MODIFIER_INTENT_PRIMARY_ACCELERATOR);
/* select previous matching iter */
if (keyval == GDK_KEY_Up || keyval == GDK_KEY_KP_Up)
{
if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
gtk_widget_error_bell (widget);
retval = TRUE;
}
if (((state & (default_accel | GDK_SHIFT_MASK)) == (default_accel | GDK_SHIFT_MASK))
&& (keyval == GDK_KEY_g || keyval == GDK_KEY_G))
{
if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
gtk_widget_error_bell (widget);
retval = TRUE;
}
/* select next matching iter */
if (keyval == GDK_KEY_Down || keyval == GDK_KEY_KP_Down)
{
if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
gtk_widget_error_bell (widget);
retval = TRUE;
}
if (((state & (default_accel | GDK_SHIFT_MASK)) == default_accel)
&& (keyval == GDK_KEY_g || keyval == GDK_KEY_G))
{
if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
gtk_widget_error_bell (widget);
retval = TRUE;
}
/* renew the flush timeout */
if (retval && tree_view->priv->typeselect_flush_timeout
&& !tree_view->priv->search_custom_entry_set)
{
g_source_remove (tree_view->priv->typeselect_flush_timeout);
tree_view->priv->typeselect_flush_timeout =
g_timeout_add (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
(GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
tree_view);
g_source_set_name_by_id (tree_view->priv->typeselect_flush_timeout, "[gtk] gtk_tree_view_search_entry_flush_timeout");
}
if (!retval)
gtk_event_controller_key_forward (key, tree_view->priv->search_entry);
return retval;
}
/* this function returns FALSE if there is a search string but
* nothing was found, and TRUE otherwise.
*/
static gboolean
gtk_tree_view_search_move (GtkWidget *window,
GtkTreeView *tree_view,
gboolean up)
{
gboolean ret;
gint len;
gint count = 0;
const gchar *text;
GtkTreeIter iter;
GtkTreeModel *model;
GtkTreeSelection *selection;
text = gtk_editable_get_text (GTK_EDITABLE (tree_view->priv->search_entry));
g_return_val_if_fail (text != NULL, FALSE);
len = strlen (text);
if (up && tree_view->priv->selected_iter == 1)
return len < 1;
if (len < 1)
return TRUE;
model = gtk_tree_view_get_model (tree_view);
selection = gtk_tree_view_get_selection (tree_view);
/* search */
gtk_tree_selection_unselect_all (selection);
if (!gtk_tree_model_get_iter_first (model, &iter))
return TRUE;
ret = gtk_tree_view_search_iter (model, selection, &iter, text,
&count, up?((tree_view->priv->selected_iter) - 1):((tree_view->priv->selected_iter + 1)));
if (ret)
{
/* found */
tree_view->priv->selected_iter += up?(-1):(1);
return TRUE;
}
else
{
/* return to old iter */
count = 0;
gtk_tree_model_get_iter_first (model, &iter);
gtk_tree_view_search_iter (model, selection,
&iter, text,
&count, tree_view->priv->selected_iter);
return FALSE;
}
}
static gboolean
gtk_tree_view_search_equal_func (GtkTreeModel *model,
gint column,
const gchar *key,
GtkTreeIter *iter,
gpointer search_data)
{
gboolean retval = TRUE;
const gchar *str;
gchar *normalized_string;
gchar *normalized_key;
gchar *case_normalized_string = NULL;
gchar *case_normalized_key = NULL;
GValue value = G_VALUE_INIT;
GValue transformed = G_VALUE_INIT;
gtk_tree_model_get_value (model, iter, column, &value);
g_value_init (&transformed, G_TYPE_STRING);
if (!g_value_transform (&value, &transformed))
{
g_value_unset (&value);
return TRUE;
}
g_value_unset (&value);
str = g_value_get_string (&transformed);
if (!str)
{
g_value_unset (&transformed);
return TRUE;
}
normalized_string = g_utf8_normalize (str, -1, G_NORMALIZE_ALL);
normalized_key = g_utf8_normalize (key, -1, G_NORMALIZE_ALL);
if (normalized_string && normalized_key)
{
case_normalized_string = g_utf8_casefold (normalized_string, -1);
case_normalized_key = g_utf8_casefold (normalized_key, -1);
if (strncmp (case_normalized_key, case_normalized_string, strlen (case_normalized_key)) == 0)
retval = FALSE;
}
g_value_unset (&transformed);
g_free (normalized_key);
g_free (normalized_string);
g_free (case_normalized_key);
g_free (case_normalized_string);
return retval;
}
static gboolean
gtk_tree_view_search_iter (GtkTreeModel *model,
GtkTreeSelection *selection,
GtkTreeIter *iter,
const gchar *text,
gint *count,
gint n)
{
GtkTreeRBTree *tree = NULL;
GtkTreeRBNode *node = NULL;
GtkTreePath *path;
GtkTreeView *tree_view = gtk_tree_selection_get_tree_view (selection);
path = gtk_tree_model_get_path (model, iter);
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
do
{
if (! tree_view->priv->search_equal_func (model, tree_view->priv->search_column, text, iter, tree_view->priv->search_user_data))
{
(*count)++;
if (*count == n)
{
gtk_tree_view_scroll_to_cell (tree_view, path, NULL,
TRUE, 0.5, 0.0);
gtk_tree_selection_select_iter (selection, iter);
gtk_tree_view_real_set_cursor (tree_view, path, CLAMP_NODE);
if (path)
gtk_tree_path_free (path);
return TRUE;
}
}
if (node->children)
{
gboolean has_child;
GtkTreeIter tmp;
tree = node->children;
node = gtk_tree_rbtree_first (tree);
tmp = *iter;
has_child = gtk_tree_model_iter_children (model, iter, &tmp);
gtk_tree_path_down (path);
/* sanity check */
TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
}
else
{
gboolean done = FALSE;
do
{
node = gtk_tree_rbtree_next (tree, node);
if (node)
{
gboolean has_next;
has_next = gtk_tree_model_iter_next (model, iter);
done = TRUE;
gtk_tree_path_next (path);
/* sanity check */
TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
}
else
{
gboolean has_parent;
GtkTreeIter tmp_iter = *iter;
node = tree->parent_node;
tree = tree->parent_tree;
if (!tree)
{
if (path)
gtk_tree_path_free (path);
/* we've run out of tree, done with this func */
return FALSE;
}
has_parent = gtk_tree_model_iter_parent (model,
iter,
&tmp_iter);
gtk_tree_path_up (path);
/* sanity check */
TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
}
}
while (!done);
}
}
while (1);
return FALSE;
}
static void
gtk_tree_view_search_init (GtkWidget *entry,
GtkTreeView *tree_view)
{
gint ret;
gint count = 0;
const gchar *text;
GtkTreeIter iter;
GtkTreeModel *model;
GtkTreeSelection *selection;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
text = gtk_editable_get_text (GTK_EDITABLE (entry));
model = gtk_tree_view_get_model (tree_view);
selection = gtk_tree_view_get_selection (tree_view);
/* search */
gtk_tree_selection_unselect_all (selection);
if (tree_view->priv->typeselect_flush_timeout
&& !tree_view->priv->search_custom_entry_set)
{
g_source_remove (tree_view->priv->typeselect_flush_timeout);
tree_view->priv->typeselect_flush_timeout =
g_timeout_add (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
(GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
tree_view);
g_source_set_name_by_id (tree_view->priv->typeselect_flush_timeout, "[gtk] gtk_tree_view_search_entry_flush_timeout");
}
if (*text == '\0')
return;
if (!gtk_tree_model_get_iter_first (model, &iter))
return;
ret = gtk_tree_view_search_iter (model, selection,
&iter, text,
&count, 1);
if (ret)
tree_view->priv->selected_iter = 1;
}
void
_gtk_tree_view_remove_editable (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
GtkCellEditable *cell_editable)
{
if (tree_view->priv->edited_column == NULL)
return;
g_return_if_fail (column == tree_view->priv->edited_column);
tree_view->priv->edited_column = NULL;
if (gtk_widget_has_focus (GTK_WIDGET (cell_editable)))
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
gtk_container_remove (GTK_CONTAINER (tree_view),
GTK_WIDGET (cell_editable));
/* FIXME should only redraw a single node */
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
static gboolean
gtk_tree_view_start_editing (GtkTreeView *tree_view,
GtkTreePath *cursor_path,
gboolean edit_only)
{
GtkTreeIter iter;
GdkRectangle cell_area;
GtkTreeViewColumn *focus_column;
guint flags = 0; /* can be 0, as the flags are primarily for rendering */
gint retval = FALSE;
GtkTreeRBTree *cursor_tree;
GtkTreeRBNode *cursor_node;
g_assert (tree_view->priv->focus_column);
focus_column = tree_view->priv->focus_column;
if (!gtk_widget_get_realized (GTK_WIDGET (tree_view)))
return FALSE;
if (_gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node) ||
cursor_node == NULL)
return FALSE;
gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path);
validate_row (tree_view, cursor_tree, cursor_node, &iter, cursor_path);
gtk_tree_view_column_cell_set_cell_data (focus_column,
tree_view->priv->model,
&iter,
GTK_TREE_RBNODE_FLAG_SET (cursor_node, GTK_TREE_RBNODE_IS_PARENT),
cursor_node->children ? TRUE : FALSE);
gtk_tree_view_get_cell_area (tree_view,
cursor_path,
focus_column,
&cell_area);
if (gtk_cell_area_activate (gtk_cell_layout_get_area (GTK_CELL_LAYOUT (focus_column)),
_gtk_tree_view_column_get_context (focus_column),
GTK_WIDGET (tree_view),
&cell_area,
flags, edit_only))
retval = TRUE;
return retval;
}
void
_gtk_tree_view_add_editable (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
GtkTreePath *path,
GtkCellEditable *cell_editable,
GdkRectangle *cell_area)
{
GdkRectangle full_area;
GtkBorder border;
tree_view->priv->edited_column = column;
gtk_tree_view_real_set_cursor (tree_view, path, CLAMP_NODE);
tree_view->priv->draw_keyfocus = TRUE;
gtk_tree_view_get_cell_area (tree_view, path, column, &full_area);
border.left = cell_area->x - full_area.x;
border.top = cell_area->y - full_area.y;
border.right = (full_area.x + full_area.width) - (cell_area->x + cell_area->width);
border.bottom = (full_area.y + full_area.height) - (cell_area->y + cell_area->height);
gtk_tree_view_put (tree_view,
GTK_WIDGET (cell_editable),
path,
column,
&border);
}
static void
gtk_tree_view_stop_editing (GtkTreeView *tree_view,
gboolean cancel_editing)
{
GtkTreeViewColumn *column;
if (tree_view->priv->edited_column == NULL)
return;
/*
* This is very evil. We need to do this, because
* gtk_cell_editable_editing_done may trigger gtk_tree_view_row_changed
* later on. If gtk_tree_view_row_changed notices
* tree_view->priv->edited_column != NULL, it'll call
* gtk_tree_view_stop_editing again. Bad things will happen then.
*
* Please read that again if you intend to modify anything here.
*/
column = tree_view->priv->edited_column;
gtk_cell_area_stop_editing (gtk_cell_layout_get_area (GTK_CELL_LAYOUT (column)), cancel_editing);
tree_view->priv->edited_column = NULL;
}
/**
* gtk_tree_view_set_hover_selection:
* @tree_view: a #GtkTreeView
* @hover: %TRUE to enable hover selection mode
*
* Enables or disables the hover selection mode of @tree_view.
* Hover selection makes the selected row follow the pointer.
* Currently, this works only for the selection modes
* %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
**/
void
gtk_tree_view_set_hover_selection (GtkTreeView *tree_view,
gboolean hover)
{
hover = hover != FALSE;
if (hover != tree_view->priv->hover_selection)
{
tree_view->priv->hover_selection = hover;
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_HOVER_SELECTION]);
}
}
/**
* gtk_tree_view_get_hover_selection:
* @tree_view: a #GtkTreeView
*
* Returns whether hover selection mode is turned on for @tree_view.
*
* Returns: %TRUE if @tree_view is in hover selection mode
**/
gboolean
gtk_tree_view_get_hover_selection (GtkTreeView *tree_view)
{
return tree_view->priv->hover_selection;
}
/**
* gtk_tree_view_set_hover_expand:
* @tree_view: a #GtkTreeView
* @expand: %TRUE to enable hover selection mode
*
* Enables or disables the hover expansion mode of @tree_view.
* Hover expansion makes rows expand or collapse if the pointer
* moves over them.
**/
void
gtk_tree_view_set_hover_expand (GtkTreeView *tree_view,
gboolean expand)
{
expand = expand != FALSE;
if (expand != tree_view->priv->hover_expand)
{
tree_view->priv->hover_expand = expand;
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_HOVER_EXPAND]);
}
}
/**
* gtk_tree_view_get_hover_expand:
* @tree_view: a #GtkTreeView
*
* Returns whether hover expansion mode is turned on for @tree_view.
*
* Returns: %TRUE if @tree_view is in hover expansion mode
**/
gboolean
gtk_tree_view_get_hover_expand (GtkTreeView *tree_view)
{
return tree_view->priv->hover_expand;
}
/**
* gtk_tree_view_set_rubber_banding:
* @tree_view: a #GtkTreeView
* @enable: %TRUE to enable rubber banding
*
* Enables or disables rubber banding in @tree_view. If the selection mode
* is #GTK_SELECTION_MULTIPLE, rubber banding will allow the user to select
* multiple rows by dragging the mouse.
**/
void
gtk_tree_view_set_rubber_banding (GtkTreeView *tree_view,
gboolean enable)
{
enable = enable != FALSE;
if (enable != tree_view->priv->rubber_banding_enable)
{
tree_view->priv->rubber_banding_enable = enable;
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_RUBBER_BANDING]);
}
}
/**
* gtk_tree_view_get_rubber_banding:
* @tree_view: a #GtkTreeView
*
* Returns whether rubber banding is turned on for @tree_view. If the
* selection mode is #GTK_SELECTION_MULTIPLE, rubber banding will allow the
* user to select multiple rows by dragging the mouse.
*
* Returns: %TRUE if rubber banding in @tree_view is enabled.
**/
gboolean
gtk_tree_view_get_rubber_banding (GtkTreeView *tree_view)
{
return tree_view->priv->rubber_banding_enable;
}
/**
* gtk_tree_view_is_rubber_banding_active:
* @tree_view: a #GtkTreeView
*
* Returns whether a rubber banding operation is currently being done
* in @tree_view.
*
* Returns: %TRUE if a rubber banding operation is currently being
* done in @tree_view.
**/
gboolean
gtk_tree_view_is_rubber_banding_active (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
if (tree_view->priv->rubber_banding_enable
&& tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
return TRUE;
return FALSE;
}
/**
* gtk_tree_view_get_row_separator_func: (skip)
* @tree_view: a #GtkTreeView
*
* Returns the current row separator function.
*
* Returns: the current row separator function.
**/
GtkTreeViewRowSeparatorFunc
gtk_tree_view_get_row_separator_func (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return tree_view->priv->row_separator_func;
}
/**
* gtk_tree_view_set_row_separator_func:
* @tree_view: a #GtkTreeView
* @func: (allow-none): a #GtkTreeViewRowSeparatorFunc
* @data: (allow-none): user data to pass to @func, or %NULL
* @destroy: (allow-none): destroy notifier for @data, or %NULL
*
* Sets the row separator function, which is used to determine
* whether a row should be drawn as a separator. If the row separator
* function is %NULL, no separators are drawn. This is the default value.
**/
void
gtk_tree_view_set_row_separator_func (GtkTreeView *tree_view,
GtkTreeViewRowSeparatorFunc func,
gpointer data,
GDestroyNotify destroy)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tree_view->priv->row_separator_destroy)
tree_view->priv->row_separator_destroy (tree_view->priv->row_separator_data);
tree_view->priv->row_separator_func = func;
tree_view->priv->row_separator_data = data;
tree_view->priv->row_separator_destroy = destroy;
/* Have the tree recalculate heights */
gtk_tree_rbtree_mark_invalid (tree_view->priv->tree);
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
/**
* gtk_tree_view_get_grid_lines:
* @tree_view: a #GtkTreeView
*
* Returns which grid lines are enabled in @tree_view.
*
* Returns: a #GtkTreeViewGridLines value indicating which grid lines
* are enabled.
*/
GtkTreeViewGridLines
gtk_tree_view_get_grid_lines (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
return tree_view->priv->grid_lines;
}
/**
* gtk_tree_view_set_grid_lines:
* @tree_view: a #GtkTreeView
* @grid_lines: a #GtkTreeViewGridLines value indicating which grid lines to
* enable.
*
* Sets which grid lines to draw in @tree_view.
*/
void
gtk_tree_view_set_grid_lines (GtkTreeView *tree_view,
GtkTreeViewGridLines grid_lines)
{
GtkTreeViewPrivate *priv;
GtkWidget *widget;
GtkTreeViewGridLines old_grid_lines;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
priv = tree_view->priv;
widget = GTK_WIDGET (tree_view);
old_grid_lines = priv->grid_lines;
priv->grid_lines = grid_lines;
if (gtk_widget_get_realized (widget))
{
if (grid_lines != GTK_TREE_VIEW_GRID_LINES_NONE &&
_TREE_VIEW_GRID_LINE_WIDTH > 0)
{
priv->grid_line_dashes[0] = 1;
priv->grid_line_dashes[1] = 1;
}
}
if (old_grid_lines != grid_lines)
{
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_ENABLE_GRID_LINES]);
}
}
/**
* gtk_tree_view_get_enable_tree_lines:
* @tree_view: a #GtkTreeView.
*
* Returns whether or not tree lines are drawn in @tree_view.
*
* Returns: %TRUE if tree lines are drawn in @tree_view, %FALSE
* otherwise.
*/
gboolean
gtk_tree_view_get_enable_tree_lines (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
return tree_view->priv->tree_lines_enabled;
}
/**
* gtk_tree_view_set_enable_tree_lines:
* @tree_view: a #GtkTreeView
* @enabled: %TRUE to enable tree line drawing, %FALSE otherwise.
*
* Sets whether to draw lines interconnecting the expanders in @tree_view.
* This does not have any visible effects for lists.
*/
void
gtk_tree_view_set_enable_tree_lines (GtkTreeView *tree_view,
gboolean enabled)
{
GtkTreeViewPrivate *priv;
GtkWidget *widget;
gboolean was_enabled;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
enabled = enabled != FALSE;
priv = tree_view->priv;
widget = GTK_WIDGET (tree_view);
was_enabled = priv->tree_lines_enabled;
priv->tree_lines_enabled = enabled;
if (gtk_widget_get_realized (widget))
{
if (enabled && _TREE_VIEW_TREE_LINE_WIDTH > 0)
{
priv->tree_line_dashes[0] = 1;
priv->tree_line_dashes[1] = 1;
}
}
if (was_enabled != enabled)
{
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_ENABLE_TREE_LINES]);
}
}
/**
* gtk_tree_view_set_show_expanders:
* @tree_view: a #GtkTreeView
* @enabled: %TRUE to enable expander drawing, %FALSE otherwise.
*
* Sets whether to draw and enable expanders and indent child rows in
* @tree_view. When disabled there will be no expanders visible in trees
* and there will be no way to expand and collapse rows by default. Also
* note that hiding the expanders will disable the default indentation. You
* can set a custom indentation in this case using
* gtk_tree_view_set_level_indentation().
* This does not have any visible effects for lists.
*/
void
gtk_tree_view_set_show_expanders (GtkTreeView *tree_view,
gboolean enabled)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
enabled = enabled != FALSE;
if (tree_view->priv->show_expanders != enabled)
{
tree_view->priv->show_expanders = enabled;
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_SHOW_EXPANDERS]);
}
}
/**
* gtk_tree_view_get_show_expanders:
* @tree_view: a #GtkTreeView.
*
* Returns whether or not expanders are drawn in @tree_view.
*
* Returns: %TRUE if expanders are drawn in @tree_view, %FALSE
* otherwise.
*/
gboolean
gtk_tree_view_get_show_expanders (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
return tree_view->priv->show_expanders;
}
/**
* gtk_tree_view_set_level_indentation:
* @tree_view: a #GtkTreeView
* @indentation: the amount, in pixels, of extra indentation in @tree_view.
*
* Sets the amount of extra indentation for child levels to use in @tree_view
* in addition to the default indentation. The value should be specified in
* pixels, a value of 0 disables this feature and in this case only the default
* indentation will be used.
* This does not have any visible effects for lists.
*/
void
gtk_tree_view_set_level_indentation (GtkTreeView *tree_view,
gint indentation)
{
tree_view->priv->level_indentation = indentation;
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
/**
* gtk_tree_view_get_level_indentation:
* @tree_view: a #GtkTreeView.
*
* Returns the amount, in pixels, of extra indentation for child levels
* in @tree_view.
*
* Returns: the amount of extra indentation for child levels in
* @tree_view. A return value of 0 means that this feature is disabled.
*/
gint
gtk_tree_view_get_level_indentation (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
return tree_view->priv->level_indentation;
}
/**
* gtk_tree_view_set_tooltip_row:
* @tree_view: a #GtkTreeView
* @tooltip: a #GtkTooltip
* @path: a #GtkTreePath
*
* Sets the tip area of @tooltip to be the area covered by the row at @path.
* See also gtk_tree_view_set_tooltip_column() for a simpler alternative.
* See also gtk_tooltip_set_tip_area().
*/
void
gtk_tree_view_set_tooltip_row (GtkTreeView *tree_view,
GtkTooltip *tooltip,
GtkTreePath *path)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
gtk_tree_view_set_tooltip_cell (tree_view, tooltip, path, NULL, NULL);
}
/**
* gtk_tree_view_set_tooltip_cell:
* @tree_view: a #GtkTreeView
* @tooltip: a #GtkTooltip
* @path: (allow-none): a #GtkTreePath or %NULL
* @column: (allow-none): a #GtkTreeViewColumn or %NULL
* @cell: (allow-none): a #GtkCellRenderer or %NULL
*
* Sets the tip area of @tooltip to the area @path, @column and @cell have
* in common. For example if @path is %NULL and @column is set, the tip
* area will be set to the full area covered by @column. See also
* gtk_tooltip_set_tip_area().
*
* Note that if @path is not specified and @cell is set and part of a column
* containing the expander, the tooltip might not show and hide at the correct
* position. In such cases @path must be set to the current node under the
* mouse cursor for this function to operate correctly.
*
* See also gtk_tree_view_set_tooltip_column() for a simpler alternative.
*/
void
gtk_tree_view_set_tooltip_cell (GtkTreeView *tree_view,
GtkTooltip *tooltip,
GtkTreePath *path,
GtkTreeViewColumn *column,
GtkCellRenderer *cell)
{
GdkRectangle rect;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
g_return_if_fail (cell == NULL || GTK_IS_CELL_RENDERER (cell));
/* Determine x values. */
if (column && cell)
{
GdkRectangle tmp;
gint start, width;
/* We always pass in path here, whether it is NULL or not.
* For cells in expander columns path must be specified so that
* we can correctly account for the indentation. This also means
* that the tooltip is constrained vertically by the "Determine y
* values" code below; this is not a real problem since cells actually
* don't stretch vertically in constrast to columns.
*/
gtk_tree_view_get_cell_area (tree_view, path, column, &tmp);
gtk_tree_view_column_cell_get_position (column, cell, &start, &width);
gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
tmp.x + start, 0,
&rect.x, NULL);
rect.width = width;
}
else if (column)
{
GdkRectangle tmp;
gtk_tree_view_get_background_area (tree_view, NULL, column, &tmp);
gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
tmp.x, 0,
&rect.x, NULL);
rect.width = tmp.width;
}
else
{
rect.x = 0;
rect.width = gtk_widget_get_width (GTK_WIDGET (tree_view));;
}
/* Determine y values. */
if (path)
{
GdkRectangle tmp;
gtk_tree_view_get_background_area (tree_view, path, NULL, &tmp);
gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
0, tmp.y,
NULL, &rect.y);
rect.height = tmp.height;
}
else
{
rect.y = 0;
rect.height = gtk_adjustment_get_page_size (tree_view->priv->vadjustment);
}
gtk_tooltip_set_tip_area (tooltip, &rect);
}
/**
* gtk_tree_view_get_tooltip_context:
* @tree_view: a #GtkTreeView
* @x: (inout): the x coordinate (relative to widget coordinates)
* @y: (inout): the y coordinate (relative to widget coordinates)
* @keyboard_tip: whether this is a keyboard tooltip or not
* @model: (out) (optional) (nullable) (transfer none): a pointer to
* receive a #GtkTreeModel or %NULL
* @path: (out) (optional): a pointer to receive a #GtkTreePath or %NULL
* @iter: (out) (optional): a pointer to receive a #GtkTreeIter or %NULL
*
* This function is supposed to be used in a #GtkWidget::query-tooltip
* signal handler for #GtkTreeView. The @x, @y and @keyboard_tip values
* which are received in the signal handler, should be passed to this
* function without modification.
*
* The return value indicates whether there is a tree view row at the given
* coordinates (%TRUE) or not (%FALSE) for mouse tooltips. For keyboard
* tooltips the row returned will be the cursor row. When %TRUE, then any of
* @model, @path and @iter which have been provided will be set to point to
* that row and the corresponding model. @x and @y will always be converted
* to be relative to @tree_view’s bin_window if @keyboard_tooltip is %FALSE.
*
* Returns: whether or not the given tooltip context points to a row.
*/
gboolean
gtk_tree_view_get_tooltip_context (GtkTreeView *tree_view,
gint *x,
gint *y,
gboolean keyboard_tip,
GtkTreeModel **model,
GtkTreePath **path,
GtkTreeIter *iter)
{
GtkTreePath *tmppath = NULL;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
g_return_val_if_fail (x != NULL, FALSE);
g_return_val_if_fail (y != NULL, FALSE);
if (keyboard_tip)
{
gtk_tree_view_get_cursor (tree_view, &tmppath, NULL);
if (!tmppath)
return FALSE;
}
else
{
gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, *x, *y,
x, y);
if (!gtk_tree_view_get_path_at_pos (tree_view, *x, *y,
&tmppath, NULL, NULL, NULL))
return FALSE;
}
if (model)
*model = gtk_tree_view_get_model (tree_view);
if (iter)
gtk_tree_model_get_iter (gtk_tree_view_get_model (tree_view),
iter, tmppath);
if (path)
*path = tmppath;
else
gtk_tree_path_free (tmppath);
return TRUE;
}
static gboolean
gtk_tree_view_set_tooltip_query_cb (GtkWidget *widget,
gint x,
gint y,
gboolean keyboard_tip,
GtkTooltip *tooltip,
gpointer data)
{
GValue value = G_VALUE_INIT;
GValue transformed = G_VALUE_INIT;
GtkTreeIter iter;
GtkTreePath *path;
GtkTreeModel *model;
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
if (!gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (widget),
&x, &y,
keyboard_tip,
&model, &path, &iter))
return FALSE;
gtk_tree_model_get_value (model, &iter,
tree_view->priv->tooltip_column, &value);
g_value_init (&transformed, G_TYPE_STRING);
if (!g_value_transform (&value, &transformed))
{
g_value_unset (&value);
gtk_tree_path_free (path);
return FALSE;
}
g_value_unset (&value);
if (!g_value_get_string (&transformed))
{
g_value_unset (&transformed);
gtk_tree_path_free (path);
return FALSE;
}
gtk_tooltip_set_markup (tooltip, g_value_get_string (&transformed));
gtk_tree_view_set_tooltip_row (tree_view, tooltip, path);
gtk_tree_path_free (path);
g_value_unset (&transformed);
return TRUE;
}
/**
* gtk_tree_view_set_tooltip_column:
* @tree_view: a #GtkTreeView
* @column: an integer, which is a valid column number for @tree_view’s model
*
* If you only plan to have simple (text-only) tooltips on full rows, you
* can use this function to have #GtkTreeView handle these automatically
* for you. @column should be set to the column in @tree_view’s model
* containing the tooltip texts, or -1 to disable this feature.
*
* When enabled, #GtkWidget:has-tooltip will be set to %TRUE and
* @tree_view will connect a #GtkWidget::query-tooltip signal handler.
*
* Note that the signal handler sets the text with gtk_tooltip_set_markup(),
* so &, <, etc have to be escaped in the text.
*/
void
gtk_tree_view_set_tooltip_column (GtkTreeView *tree_view,
gint column)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (column == tree_view->priv->tooltip_column)
return;
if (column == -1)
{
g_signal_handlers_disconnect_by_func (tree_view,
gtk_tree_view_set_tooltip_query_cb,
NULL);
gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), FALSE);
}
else
{
if (tree_view->priv->tooltip_column == -1)
{
g_signal_connect (tree_view, "query-tooltip",
G_CALLBACK (gtk_tree_view_set_tooltip_query_cb), NULL);
gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), TRUE);
}
}
tree_view->priv->tooltip_column = column;
g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_TOOLTIP_COLUMN]);
}
/**
* gtk_tree_view_get_tooltip_column:
* @tree_view: a #GtkTreeView
*
* Returns the column of @tree_view’s model which is being used for
* displaying tooltips on @tree_view’s rows.
*
* Returns: the index of the tooltip column that is currently being
* used, or -1 if this is disabled.
*/
gint
gtk_tree_view_get_tooltip_column (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
return tree_view->priv->tooltip_column;
}
static gboolean
gtk_tree_view_get_border (GtkScrollable *scrollable,
GtkBorder *border)
{
border->top = gtk_tree_view_get_effective_header_height (GTK_TREE_VIEW (scrollable));
return TRUE;
}
static void
gtk_tree_view_scrollable_init (GtkScrollableInterface *iface)
{
iface->get_border = gtk_tree_view_get_border;
}