| /* GTK - The GIMP Toolkit |
| * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald |
| * Copyright (C) 1998 Elliot Lee |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| /* |
| * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS |
| * file for a list of people on the GTK+ Team. See the ChangeLog |
| * files for a list of changes. These files are distributed with |
| * GTK+ at ftp://ftp.gtk.org/pub/gtk/. |
| */ |
| |
| #include "config.h" |
| |
| #include <stdlib.h> |
| |
| #define GDK_DISABLE_DEPRECATION_WARNINGS |
| |
| #include "gtkhandlebox.h" |
| #include "gtkinvisible.h" |
| #include "gtkmain.h" |
| #include "gtkmarshalers.h" |
| #include "gtkwindow.h" |
| #include "gtktypebuiltins.h" |
| #include "gtkprivate.h" |
| #include "gtkintl.h" |
| |
| |
| /** |
| * SECTION:gtkhandlebox |
| * @Short_description: a widget for detachable window portions |
| * @Title: GtkHandleBox |
| * |
| * The #GtkHandleBox widget allows a portion of a window to be "torn |
| * off". It is a bin widget which displays its child and a handle that |
| * the user can drag to tear off a separate window (the <firstterm>float |
| * window</firstterm>) containing the child widget. A thin |
| * <firstterm>ghost</firstterm> is drawn in the original location of the |
| * handlebox. By dragging the separate window back to its original |
| * location, it can be reattached. |
| * |
| * When reattaching, the ghost and float window, must be aligned |
| * along one of the edges, the <firstterm>snap edge</firstterm>. |
| * This either can be specified by the application programmer |
| * explicitely, or GTK+ will pick a reasonable default based |
| * on the handle position. |
| * |
| * To make detaching and reattaching the handlebox as minimally confusing |
| * as possible to the user, it is important to set the snap edge so that |
| * the snap edge does not move when the handlebox is deattached. For |
| * instance, if the handlebox is packed at the bottom of a VBox, then |
| * when the handlebox is detached, the bottom edge of the handlebox's |
| * allocation will remain fixed as the height of the handlebox shrinks, |
| * so the snap edge should be set to %GTK_POS_BOTTOM. |
| * |
| * <note> |
| * #GtkHandleBox has been deprecated. It is very specialized, lacks features |
| * to make it useful and most importantly does not fit well into modern |
| * application design. Do not use it. There is no replacement. |
| * </note> |
| */ |
| |
| |
| struct _GtkHandleBoxPrivate |
| { |
| /* Properties */ |
| GtkPositionType handle_position; |
| GtkPositionType snap_edge; |
| GtkShadowType shadow_type; |
| gboolean child_detached; |
| /* Properties */ |
| |
| GtkAllocation attach_allocation; |
| GtkAllocation float_allocation; |
| |
| GdkDevice *grab_device; |
| |
| GdkWindow *bin_window; /* parent window for children */ |
| GdkWindow *float_window; |
| |
| /* Variables used during a drag |
| */ |
| gint orig_x; |
| gint orig_y; |
| |
| guint float_window_mapped : 1; |
| guint in_drag : 1; |
| guint shrink_on_detach : 1; |
| }; |
| |
| enum { |
| PROP_0, |
| PROP_SHADOW_TYPE, |
| PROP_HANDLE_POSITION, |
| PROP_SNAP_EDGE, |
| PROP_SNAP_EDGE_SET, |
| PROP_CHILD_DETACHED |
| }; |
| |
| #define DRAG_HANDLE_SIZE 10 |
| #define CHILDLESS_SIZE 25 |
| #define GHOST_HEIGHT 3 |
| #define TOLERANCE 5 |
| |
| enum { |
| SIGNAL_CHILD_ATTACHED, |
| SIGNAL_CHILD_DETACHED, |
| SIGNAL_LAST |
| }; |
| |
| /* The algorithm for docking and redocking implemented here |
| * has a couple of nice properties: |
| * |
| * 1) During a single drag, docking always occurs at the |
| * the same cursor position. This means that the users |
| * motions are reversible, and that you won't |
| * undock/dock oscillations. |
| * |
| * 2) Docking generally occurs at user-visible features. |
| * The user, once they figure out to redock, will |
| * have useful information about doing it again in |
| * the future. |
| * |
| * Please try to preserve these properties if you |
| * change the algorithm. (And the current algorithm |
| * is far from ideal). Briefly, the current algorithm |
| * for deciding whether the handlebox is docked or not: |
| * |
| * 1) The decision is done by comparing two rectangles - the |
| * allocation if the widget at the start of the drag, |
| * and the boundary of hb->bin_window at the start of |
| * of the drag offset by the distance that the cursor |
| * has moved. |
| * |
| * 2) These rectangles must have one edge, the "snap_edge" |
| * of the handlebox, aligned within TOLERANCE. |
| * |
| * 3) On the other dimension, the extents of one rectangle |
| * must be contained in the extents of the other, |
| * extended by tolerance. That is, either we can have: |
| * |
| * <-TOLERANCE-|--------bin_window--------------|-TOLERANCE-> |
| * <--------float_window--------------------> |
| * |
| * or we can have: |
| * |
| * <-TOLERANCE-|------float_window--------------|-TOLERANCE-> |
| * <--------bin_window--------------------> |
| */ |
| |
| static void gtk_handle_box_set_property (GObject *object, |
| guint param_id, |
| const GValue *value, |
| GParamSpec *pspec); |
| static void gtk_handle_box_get_property (GObject *object, |
| guint param_id, |
| GValue *value, |
| GParamSpec *pspec); |
| static void gtk_handle_box_map (GtkWidget *widget); |
| static void gtk_handle_box_unmap (GtkWidget *widget); |
| static void gtk_handle_box_realize (GtkWidget *widget); |
| static void gtk_handle_box_unrealize (GtkWidget *widget); |
| static void gtk_handle_box_style_updated (GtkWidget *widget); |
| static void gtk_handle_box_size_request (GtkWidget *widget, |
| GtkRequisition *requisition); |
| static void gtk_handle_box_get_preferred_width (GtkWidget *widget, |
| gint *minimum, |
| gint *natural); |
| static void gtk_handle_box_get_preferred_height (GtkWidget *widget, |
| gint *minimum, |
| gint *natural); |
| static void gtk_handle_box_size_allocate (GtkWidget *widget, |
| GtkAllocation *real_allocation); |
| static void gtk_handle_box_add (GtkContainer *container, |
| GtkWidget *widget); |
| static void gtk_handle_box_remove (GtkContainer *container, |
| GtkWidget *widget); |
| static gboolean gtk_handle_box_draw (GtkWidget *widget, |
| cairo_t *cr); |
| static gboolean gtk_handle_box_button_press (GtkWidget *widget, |
| GdkEventButton *event); |
| static gboolean gtk_handle_box_motion (GtkWidget *widget, |
| GdkEventMotion *event); |
| static gboolean gtk_handle_box_delete_event (GtkWidget *widget, |
| GdkEventAny *event); |
| static void gtk_handle_box_reattach (GtkHandleBox *hb); |
| static void gtk_handle_box_end_drag (GtkHandleBox *hb, |
| guint32 time); |
| |
| static guint handle_box_signals[SIGNAL_LAST] = { 0 }; |
| |
| G_DEFINE_TYPE (GtkHandleBox, gtk_handle_box, GTK_TYPE_BIN) |
| |
| static void |
| gtk_handle_box_class_init (GtkHandleBoxClass *class) |
| { |
| GObjectClass *gobject_class; |
| GtkWidgetClass *widget_class; |
| GtkContainerClass *container_class; |
| |
| gobject_class = (GObjectClass *) class; |
| widget_class = (GtkWidgetClass *) class; |
| container_class = (GtkContainerClass *) class; |
| |
| gobject_class->set_property = gtk_handle_box_set_property; |
| gobject_class->get_property = gtk_handle_box_get_property; |
| |
| g_object_class_install_property (gobject_class, |
| PROP_SHADOW_TYPE, |
| g_param_spec_enum ("shadow-type", |
| P_("Shadow type"), |
| P_("Appearance of the shadow that surrounds the container"), |
| GTK_TYPE_SHADOW_TYPE, |
| GTK_SHADOW_OUT, |
| GTK_PARAM_READWRITE)); |
| |
| g_object_class_install_property (gobject_class, |
| PROP_HANDLE_POSITION, |
| g_param_spec_enum ("handle-position", |
| P_("Handle position"), |
| P_("Position of the handle relative to the child widget"), |
| GTK_TYPE_POSITION_TYPE, |
| GTK_POS_LEFT, |
| GTK_PARAM_READWRITE)); |
| |
| g_object_class_install_property (gobject_class, |
| PROP_SNAP_EDGE, |
| g_param_spec_enum ("snap-edge", |
| P_("Snap edge"), |
| P_("Side of the handlebox that's lined up with the docking point to dock the handlebox"), |
| GTK_TYPE_POSITION_TYPE, |
| GTK_POS_TOP, |
| GTK_PARAM_READWRITE)); |
| |
| g_object_class_install_property (gobject_class, |
| PROP_SNAP_EDGE_SET, |
| g_param_spec_boolean ("snap-edge-set", |
| P_("Snap edge set"), |
| P_("Whether to use the value from the snap_edge property or a value derived from handle_position"), |
| FALSE, |
| GTK_PARAM_READWRITE)); |
| |
| g_object_class_install_property (gobject_class, |
| PROP_CHILD_DETACHED, |
| g_param_spec_boolean ("child-detached", |
| P_("Child Detached"), |
| P_("A boolean value indicating whether the handlebox's child is attached or detached."), |
| FALSE, |
| GTK_PARAM_READABLE)); |
| |
| widget_class->map = gtk_handle_box_map; |
| widget_class->unmap = gtk_handle_box_unmap; |
| widget_class->realize = gtk_handle_box_realize; |
| widget_class->unrealize = gtk_handle_box_unrealize; |
| widget_class->style_updated = gtk_handle_box_style_updated; |
| widget_class->get_preferred_width = gtk_handle_box_get_preferred_width; |
| widget_class->get_preferred_height = gtk_handle_box_get_preferred_height; |
| widget_class->size_allocate = gtk_handle_box_size_allocate; |
| widget_class->draw = gtk_handle_box_draw; |
| widget_class->button_press_event = gtk_handle_box_button_press; |
| widget_class->delete_event = gtk_handle_box_delete_event; |
| |
| container_class->add = gtk_handle_box_add; |
| container_class->remove = gtk_handle_box_remove; |
| |
| class->child_attached = NULL; |
| class->child_detached = NULL; |
| |
| /** |
| * GtkHandleBox::child-attached: |
| * @handlebox: the object which received the signal. |
| * @widget: the child widget of the handlebox. |
| * (this argument provides no extra information |
| * and is here only for backwards-compatibility) |
| * |
| * This signal is emitted when the contents of the |
| * handlebox are reattached to the main window. |
| * |
| * Deprecated: 3.4: #GtkHandleBox has been deprecated. |
| */ |
| handle_box_signals[SIGNAL_CHILD_ATTACHED] = |
| g_signal_new (I_("child-attached"), |
| G_OBJECT_CLASS_TYPE (gobject_class), |
| G_SIGNAL_RUN_FIRST, |
| G_STRUCT_OFFSET (GtkHandleBoxClass, child_attached), |
| NULL, NULL, |
| _gtk_marshal_VOID__OBJECT, |
| G_TYPE_NONE, 1, |
| GTK_TYPE_WIDGET); |
| |
| /** |
| * GtkHandleBox::child-detached: |
| * @handlebox: the object which received the signal. |
| * @widget: the child widget of the handlebox. |
| * (this argument provides no extra information |
| * and is here only for backwards-compatibility) |
| * |
| * This signal is emitted when the contents of the |
| * handlebox are detached from the main window. |
| * |
| * Deprecated: 3.4: #GtkHandleBox has been deprecated. |
| */ |
| handle_box_signals[SIGNAL_CHILD_DETACHED] = |
| g_signal_new (I_("child-detached"), |
| G_OBJECT_CLASS_TYPE (gobject_class), |
| G_SIGNAL_RUN_FIRST, |
| G_STRUCT_OFFSET (GtkHandleBoxClass, child_detached), |
| NULL, NULL, |
| _gtk_marshal_VOID__OBJECT, |
| G_TYPE_NONE, 1, |
| GTK_TYPE_WIDGET); |
| |
| g_type_class_add_private (gobject_class, sizeof (GtkHandleBoxPrivate)); |
| } |
| |
| static void |
| gtk_handle_box_init (GtkHandleBox *handle_box) |
| { |
| GtkHandleBoxPrivate *priv; |
| GtkStyleContext *context; |
| |
| handle_box->priv = G_TYPE_INSTANCE_GET_PRIVATE (handle_box, |
| GTK_TYPE_HANDLE_BOX, |
| GtkHandleBoxPrivate); |
| priv = handle_box->priv; |
| |
| gtk_widget_set_has_window (GTK_WIDGET (handle_box), TRUE); |
| |
| priv->bin_window = NULL; |
| priv->float_window = NULL; |
| priv->shadow_type = GTK_SHADOW_OUT; |
| priv->handle_position = GTK_POS_LEFT; |
| priv->float_window_mapped = FALSE; |
| priv->child_detached = FALSE; |
| priv->in_drag = FALSE; |
| priv->shrink_on_detach = TRUE; |
| priv->snap_edge = -1; |
| |
| context = gtk_widget_get_style_context (GTK_WIDGET (handle_box)); |
| gtk_style_context_add_class (context, GTK_STYLE_CLASS_DOCK); |
| } |
| |
| static void |
| gtk_handle_box_set_property (GObject *object, |
| guint prop_id, |
| const GValue *value, |
| GParamSpec *pspec) |
| { |
| GtkHandleBox *handle_box = GTK_HANDLE_BOX (object); |
| |
| switch (prop_id) |
| { |
| case PROP_SHADOW_TYPE: |
| gtk_handle_box_set_shadow_type (handle_box, g_value_get_enum (value)); |
| break; |
| case PROP_HANDLE_POSITION: |
| gtk_handle_box_set_handle_position (handle_box, g_value_get_enum (value)); |
| break; |
| case PROP_SNAP_EDGE: |
| gtk_handle_box_set_snap_edge (handle_box, g_value_get_enum (value)); |
| break; |
| case PROP_SNAP_EDGE_SET: |
| if (!g_value_get_boolean (value)) |
| gtk_handle_box_set_snap_edge (handle_box, (GtkPositionType)-1); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static void |
| gtk_handle_box_get_property (GObject *object, |
| guint prop_id, |
| GValue *value, |
| GParamSpec *pspec) |
| { |
| GtkHandleBox *handle_box = GTK_HANDLE_BOX (object); |
| GtkHandleBoxPrivate *priv = handle_box->priv; |
| |
| switch (prop_id) |
| { |
| case PROP_SHADOW_TYPE: |
| g_value_set_enum (value, priv->shadow_type); |
| break; |
| case PROP_HANDLE_POSITION: |
| g_value_set_enum (value, priv->handle_position); |
| break; |
| case PROP_SNAP_EDGE: |
| g_value_set_enum (value, |
| (priv->snap_edge == -1 ? |
| GTK_POS_TOP : priv->snap_edge)); |
| break; |
| case PROP_SNAP_EDGE_SET: |
| g_value_set_boolean (value, priv->snap_edge != -1); |
| break; |
| case PROP_CHILD_DETACHED: |
| g_value_set_boolean (value, priv->child_detached); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| /** |
| * gtk_handle_box_new: |
| * |
| * Create a new handle box. |
| * |
| * Returns: a new #GtkHandleBox. |
| * |
| * Deprecated: 3.4: #GtkHandleBox has been deprecated. |
| */ |
| GtkWidget* |
| gtk_handle_box_new (void) |
| { |
| return g_object_new (GTK_TYPE_HANDLE_BOX, NULL); |
| } |
| |
| static void |
| gtk_handle_box_map (GtkWidget *widget) |
| { |
| GtkHandleBox *hb = GTK_HANDLE_BOX (widget); |
| GtkHandleBoxPrivate *priv = hb->priv; |
| GtkBin *bin = GTK_BIN (widget); |
| GtkWidget *child; |
| |
| gtk_widget_set_mapped (widget, TRUE); |
| |
| child = gtk_bin_get_child (bin); |
| if (child != NULL && |
| gtk_widget_get_visible (child) && |
| !gtk_widget_get_mapped (child)) |
| gtk_widget_map (child); |
| |
| if (priv->child_detached && !priv->float_window_mapped) |
| { |
| gdk_window_show (priv->float_window); |
| priv->float_window_mapped = TRUE; |
| } |
| |
| gdk_window_show (priv->bin_window); |
| gdk_window_show (gtk_widget_get_window (widget)); |
| } |
| |
| static void |
| gtk_handle_box_unmap (GtkWidget *widget) |
| { |
| GtkHandleBox *hb = GTK_HANDLE_BOX (widget); |
| GtkHandleBoxPrivate *priv = hb->priv; |
| |
| gtk_widget_set_mapped (widget, FALSE); |
| |
| gdk_window_hide (gtk_widget_get_window (widget)); |
| if (priv->float_window_mapped) |
| { |
| gdk_window_hide (priv->float_window); |
| priv->float_window_mapped = FALSE; |
| } |
| |
| GTK_WIDGET_CLASS (gtk_handle_box_parent_class)->unmap (widget); |
| } |
| |
| static void |
| gtk_handle_box_realize (GtkWidget *widget) |
| { |
| GtkHandleBox *hb = GTK_HANDLE_BOX (widget); |
| GtkHandleBoxPrivate *priv = hb->priv; |
| GtkAllocation allocation; |
| GtkRequisition requisition; |
| GtkStyleContext *context; |
| GtkWidget *child; |
| GdkWindow *window; |
| GdkWindowAttr attributes; |
| gint attributes_mask; |
| |
| gtk_widget_set_realized (widget, TRUE); |
| |
| gtk_widget_get_allocation (widget, &allocation); |
| |
| attributes.x = allocation.x; |
| attributes.y = allocation.y; |
| attributes.width = allocation.width; |
| attributes.height = allocation.height; |
| attributes.window_type = GDK_WINDOW_CHILD; |
| attributes.wclass = GDK_INPUT_OUTPUT; |
| attributes.visual = gtk_widget_get_visual (widget); |
| attributes.event_mask = (gtk_widget_get_events (widget) |
| | GDK_EXPOSURE_MASK); |
| attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL; |
| |
| window = gdk_window_new (gtk_widget_get_parent_window (widget), |
| &attributes, attributes_mask); |
| gtk_widget_set_window (widget, window); |
| gdk_window_set_user_data (window, widget); |
| |
| attributes.x = 0; |
| attributes.y = 0; |
| attributes.width = allocation.width; |
| attributes.height = allocation.height; |
| attributes.window_type = GDK_WINDOW_CHILD; |
| attributes.event_mask = (gtk_widget_get_events (widget) |
| | GDK_EXPOSURE_MASK |
| | GDK_BUTTON1_MOTION_MASK |
| | GDK_POINTER_MOTION_HINT_MASK |
| | GDK_BUTTON_PRESS_MASK |
| | GDK_BUTTON_RELEASE_MASK); |
| attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL; |
| |
| priv->bin_window = gdk_window_new (window, |
| &attributes, attributes_mask); |
| gdk_window_set_user_data (priv->bin_window, widget); |
| |
| child = gtk_bin_get_child (GTK_BIN (hb)); |
| if (child) |
| gtk_widget_set_parent_window (child, priv->bin_window); |
| |
| gtk_widget_get_preferred_size (widget, &requisition, NULL); |
| |
| attributes.x = 0; |
| attributes.y = 0; |
| attributes.width = requisition.width; |
| attributes.height = requisition.height; |
| attributes.window_type = GDK_WINDOW_TOPLEVEL; |
| attributes.wclass = GDK_INPUT_OUTPUT; |
| attributes.visual = gtk_widget_get_visual (widget); |
| attributes.event_mask = (gtk_widget_get_events (widget) |
| | GDK_KEY_PRESS_MASK |
| | GDK_ENTER_NOTIFY_MASK |
| | GDK_LEAVE_NOTIFY_MASK |
| | GDK_FOCUS_CHANGE_MASK |
| | GDK_STRUCTURE_MASK); |
| attributes.type_hint = GDK_WINDOW_TYPE_HINT_TOOLBAR; |
| attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_TYPE_HINT; |
| priv->float_window = gdk_window_new (gtk_widget_get_root_window (widget), |
| &attributes, attributes_mask); |
| gdk_window_set_user_data (priv->float_window, widget); |
| gdk_window_set_decorations (priv->float_window, 0); |
| gdk_window_set_type_hint (priv->float_window, GDK_WINDOW_TYPE_HINT_TOOLBAR); |
| |
| context = gtk_widget_get_style_context (widget); |
| gtk_style_context_set_background (context, window); |
| gtk_style_context_set_background (context, priv->bin_window); |
| gtk_style_context_set_background (context, priv->float_window); |
| } |
| |
| static void |
| gtk_handle_box_unrealize (GtkWidget *widget) |
| { |
| GtkHandleBox *hb = GTK_HANDLE_BOX (widget); |
| GtkHandleBoxPrivate *priv = hb->priv; |
| |
| gdk_window_set_user_data (priv->bin_window, NULL); |
| gdk_window_destroy (priv->bin_window); |
| priv->bin_window = NULL; |
| gdk_window_set_user_data (priv->float_window, NULL); |
| gdk_window_destroy (priv->float_window); |
| priv->float_window = NULL; |
| |
| GTK_WIDGET_CLASS (gtk_handle_box_parent_class)->unrealize (widget); |
| } |
| |
| static void |
| gtk_handle_box_style_updated (GtkWidget *widget) |
| { |
| GtkHandleBox *hb = GTK_HANDLE_BOX (widget); |
| GtkHandleBoxPrivate *priv = hb->priv; |
| |
| GTK_WIDGET_CLASS (gtk_handle_box_parent_class)->style_updated (widget); |
| |
| if (gtk_widget_get_realized (widget) && |
| gtk_widget_get_has_window (widget)) |
| { |
| GtkStateFlags state; |
| GtkStyleContext *context; |
| |
| context = gtk_widget_get_style_context (widget); |
| state = gtk_widget_get_state_flags (widget); |
| |
| gtk_style_context_save (context); |
| gtk_style_context_set_state (context, state); |
| |
| gtk_style_context_set_background (context, gtk_widget_get_window (widget)); |
| gtk_style_context_set_background (context, priv->bin_window); |
| gtk_style_context_set_background (context, priv->float_window); |
| |
| gtk_style_context_restore (context); |
| } |
| } |
| |
| static int |
| effective_handle_position (GtkHandleBox *hb) |
| { |
| GtkHandleBoxPrivate *priv = hb->priv; |
| int handle_position; |
| |
| if (gtk_widget_get_direction (GTK_WIDGET (hb)) == GTK_TEXT_DIR_LTR) |
| handle_position = priv->handle_position; |
| else |
| { |
| switch (priv->handle_position) |
| { |
| case GTK_POS_LEFT: |
| handle_position = GTK_POS_RIGHT; |
| break; |
| case GTK_POS_RIGHT: |
| handle_position = GTK_POS_LEFT; |
| break; |
| default: |
| handle_position = priv->handle_position; |
| break; |
| } |
| } |
| |
| return handle_position; |
| } |
| |
| static void |
| gtk_handle_box_size_request (GtkWidget *widget, |
| GtkRequisition *requisition) |
| { |
| GtkBin *bin = GTK_BIN (widget); |
| GtkHandleBox *hb = GTK_HANDLE_BOX (widget); |
| GtkHandleBoxPrivate *priv = hb->priv; |
| GtkRequisition child_requisition; |
| GtkWidget *child; |
| gint handle_position; |
| |
| handle_position = effective_handle_position (hb); |
| |
| if (handle_position == GTK_POS_LEFT || |
| handle_position == GTK_POS_RIGHT) |
| { |
| requisition->width = DRAG_HANDLE_SIZE; |
| requisition->height = 0; |
| } |
| else |
| { |
| requisition->width = 0; |
| requisition->height = DRAG_HANDLE_SIZE; |
| } |
| |
| child = gtk_bin_get_child (bin); |
| /* if our child is not visible, we still request its size, since we |
| * won't have any useful hint for our size otherwise. |
| */ |
| if (child) |
| { |
| gtk_widget_get_preferred_size (child, &child_requisition, NULL); |
| } |
| else |
| { |
| child_requisition.width = 0; |
| child_requisition.height = 0; |
| } |
| |
| if (priv->child_detached) |
| { |
| /* FIXME: This doesn't work currently */ |
| if (!priv->shrink_on_detach) |
| { |
| if (handle_position == GTK_POS_LEFT || |
| handle_position == GTK_POS_RIGHT) |
| requisition->height += child_requisition.height; |
| else |
| requisition->width += child_requisition.width; |
| } |
| else |
| { |
| GtkStyleContext *context; |
| GtkStateFlags state; |
| GtkBorder padding; |
| |
| context = gtk_widget_get_style_context (widget); |
| state = gtk_widget_get_state_flags (widget); |
| gtk_style_context_get_padding (context, state, &padding); |
| |
| if (handle_position == GTK_POS_LEFT || |
| handle_position == GTK_POS_RIGHT) |
| requisition->height += padding.top; |
| else |
| requisition->width += padding.left; |
| } |
| } |
| else |
| { |
| guint border_width; |
| |
| border_width = gtk_container_get_border_width (GTK_CONTAINER (widget)); |
| requisition->width += border_width * 2; |
| requisition->height += border_width * 2; |
| |
| if (child) |
| { |
| requisition->width += child_requisition.width; |
| requisition->height += child_requisition.height; |
| } |
| else |
| { |
| requisition->width += CHILDLESS_SIZE; |
| requisition->height += CHILDLESS_SIZE; |
| } |
| } |
| } |
| |
| static void |
| gtk_handle_box_get_preferred_width (GtkWidget *widget, |
| gint *minimum, |
| gint *natural) |
| { |
| GtkRequisition requisition; |
| |
| gtk_handle_box_size_request (widget, &requisition); |
| |
| *minimum = *natural = requisition.width; |
| } |
| |
| static void |
| gtk_handle_box_get_preferred_height (GtkWidget *widget, |
| gint *minimum, |
| gint *natural) |
| { |
| GtkRequisition requisition; |
| |
| gtk_handle_box_size_request (widget, &requisition); |
| |
| *minimum = *natural = requisition.height; |
| } |
| |
| |
| static void |
| gtk_handle_box_size_allocate (GtkWidget *widget, |
| GtkAllocation *allocation) |
| { |
| GtkBin *bin = GTK_BIN (widget); |
| GtkHandleBox *hb = GTK_HANDLE_BOX (widget); |
| GtkHandleBoxPrivate *priv = hb->priv; |
| GtkRequisition child_requisition; |
| GtkWidget *child; |
| gint handle_position; |
| |
| handle_position = effective_handle_position (hb); |
| |
| child = gtk_bin_get_child (bin); |
| |
| if (child) |
| { |
| gtk_widget_get_preferred_size (child, &child_requisition, NULL); |
| } |
| else |
| { |
| child_requisition.width = 0; |
| child_requisition.height = 0; |
| } |
| |
| gtk_widget_set_allocation (widget, allocation); |
| |
| if (gtk_widget_get_realized (widget)) |
| gdk_window_move_resize (gtk_widget_get_window (widget), |
| allocation->x, allocation->y, |
| allocation->width, allocation->height); |
| |
| if (child != NULL && gtk_widget_get_visible (child)) |
| { |
| GtkAllocation child_allocation; |
| guint border_width; |
| |
| border_width = gtk_container_get_border_width (GTK_CONTAINER (widget)); |
| |
| child_allocation.x = border_width; |
| child_allocation.y = border_width; |
| if (handle_position == GTK_POS_LEFT) |
| child_allocation.x += DRAG_HANDLE_SIZE; |
| else if (handle_position == GTK_POS_TOP) |
| child_allocation.y += DRAG_HANDLE_SIZE; |
| |
| if (priv->child_detached) |
| { |
| guint float_width; |
| guint float_height; |
| |
| child_allocation.width = child_requisition.width; |
| child_allocation.height = child_requisition.height; |
| |
| float_width = child_allocation.width + 2 * border_width; |
| float_height = child_allocation.height + 2 * border_width; |
| |
| if (handle_position == GTK_POS_LEFT || |
| handle_position == GTK_POS_RIGHT) |
| float_width += DRAG_HANDLE_SIZE; |
| else |
| float_height += DRAG_HANDLE_SIZE; |
| |
| if (gtk_widget_get_realized (widget)) |
| { |
| gdk_window_resize (priv->float_window, |
| float_width, |
| float_height); |
| gdk_window_move_resize (priv->bin_window, |
| 0, |
| 0, |
| float_width, |
| float_height); |
| } |
| } |
| else |
| { |
| child_allocation.width = MAX (1, (gint) allocation->width - 2 * border_width); |
| child_allocation.height = MAX (1, (gint) allocation->height - 2 * border_width); |
| |
| if (handle_position == GTK_POS_LEFT || |
| handle_position == GTK_POS_RIGHT) |
| child_allocation.width -= DRAG_HANDLE_SIZE; |
| else |
| child_allocation.height -= DRAG_HANDLE_SIZE; |
| |
| if (gtk_widget_get_realized (widget)) |
| gdk_window_move_resize (priv->bin_window, |
| 0, |
| 0, |
| allocation->width, |
| allocation->height); |
| } |
| |
| gtk_widget_size_allocate (child, &child_allocation); |
| } |
| } |
| |
| static void |
| gtk_handle_box_draw_ghost (GtkHandleBox *hb, |
| cairo_t *cr) |
| { |
| GtkWidget *widget = GTK_WIDGET (hb); |
| GtkStateFlags state; |
| GtkStyleContext *context; |
| guint x; |
| guint y; |
| guint width; |
| guint height; |
| gint allocation_width; |
| gint allocation_height; |
| gint handle_position; |
| |
| handle_position = effective_handle_position (hb); |
| allocation_width = gtk_widget_get_allocated_width (widget); |
| allocation_height = gtk_widget_get_allocated_height (widget); |
| |
| if (handle_position == GTK_POS_LEFT || |
| handle_position == GTK_POS_RIGHT) |
| { |
| x = handle_position == GTK_POS_LEFT ? 0 : allocation_width - DRAG_HANDLE_SIZE; |
| y = 0; |
| width = DRAG_HANDLE_SIZE; |
| height = allocation_height; |
| } |
| else |
| { |
| x = 0; |
| y = handle_position == GTK_POS_TOP ? 0 : allocation_height - DRAG_HANDLE_SIZE; |
| width = allocation_width; |
| height = DRAG_HANDLE_SIZE; |
| } |
| |
| context = gtk_widget_get_style_context (widget); |
| state = gtk_widget_get_state_flags (widget); |
| |
| gtk_style_context_save (context); |
| gtk_style_context_set_state (context, state); |
| |
| gtk_render_background (context, cr, x, y, width, height); |
| gtk_render_frame (context, cr, x, y, width, height); |
| |
| if (handle_position == GTK_POS_LEFT || |
| handle_position == GTK_POS_RIGHT) |
| gtk_render_line (context, cr, |
| handle_position == GTK_POS_LEFT ? DRAG_HANDLE_SIZE : 0, |
| allocation_height / 2, |
| handle_position == GTK_POS_LEFT ? allocation_width : allocation_width - DRAG_HANDLE_SIZE, |
| allocation_height / 2); |
| else |
| gtk_render_line (context, cr, |
| allocation_width / 2, |
| handle_position == GTK_POS_TOP ? DRAG_HANDLE_SIZE : 0, |
| allocation_width / 2, |
| handle_position == GTK_POS_TOP ? allocation_height : allocation_height - DRAG_HANDLE_SIZE); |
| |
| gtk_style_context_restore (context); |
| } |
| |
| /** |
| * gtk_handle_box_set_shadow_type: |
| * @handle_box: a #GtkHandleBox |
| * @type: the shadow type. |
| * |
| * Sets the type of shadow to be drawn around the border |
| * of the handle box. |
| * |
| * Deprecated: 3.4: #GtkHandleBox has been deprecated. |
| */ |
| void |
| gtk_handle_box_set_shadow_type (GtkHandleBox *handle_box, |
| GtkShadowType type) |
| { |
| GtkHandleBoxPrivate *priv; |
| |
| g_return_if_fail (GTK_IS_HANDLE_BOX (handle_box)); |
| |
| priv = handle_box->priv; |
| |
| if ((GtkShadowType) priv->shadow_type != type) |
| { |
| priv->shadow_type = type; |
| g_object_notify (G_OBJECT (handle_box), "shadow-type"); |
| gtk_widget_queue_resize (GTK_WIDGET (handle_box)); |
| } |
| } |
| |
| /** |
| * gtk_handle_box_get_shadow_type: |
| * @handle_box: a #GtkHandleBox |
| * |
| * Gets the type of shadow drawn around the handle box. See |
| * gtk_handle_box_set_shadow_type(). |
| * |
| * Return value: the type of shadow currently drawn around the handle box. |
| * |
| * Deprecated: 3.4: #GtkHandleBox has been deprecated. |
| **/ |
| GtkShadowType |
| gtk_handle_box_get_shadow_type (GtkHandleBox *handle_box) |
| { |
| g_return_val_if_fail (GTK_IS_HANDLE_BOX (handle_box), GTK_SHADOW_ETCHED_OUT); |
| |
| return handle_box->priv->shadow_type; |
| } |
| |
| /** |
| * gtk_handle_box_set_handle_position: |
| * @handle_box: a #GtkHandleBox |
| * @position: the side of the handlebox where the handle should be drawn. |
| * |
| * Sets the side of the handlebox where the handle is drawn. |
| * |
| * Deprecated: 3.4: #GtkHandleBox has been deprecated. |
| */ |
| void |
| gtk_handle_box_set_handle_position (GtkHandleBox *handle_box, |
| GtkPositionType position) |
| { |
| GtkHandleBoxPrivate *priv; |
| |
| g_return_if_fail (GTK_IS_HANDLE_BOX (handle_box)); |
| |
| priv = handle_box->priv; |
| |
| if ((GtkPositionType) priv->handle_position != position) |
| { |
| priv->handle_position = position; |
| g_object_notify (G_OBJECT (handle_box), "handle-position"); |
| gtk_widget_queue_resize (GTK_WIDGET (handle_box)); |
| } |
| } |
| |
| /** |
| * gtk_handle_box_get_handle_position: |
| * @handle_box: a #GtkHandleBox |
| * |
| * Gets the handle position of the handle box. See |
| * gtk_handle_box_set_handle_position(). |
| * |
| * Return value: the current handle position. |
| * |
| * Deprecated: 3.4: #GtkHandleBox has been deprecated. |
| **/ |
| GtkPositionType |
| gtk_handle_box_get_handle_position (GtkHandleBox *handle_box) |
| { |
| g_return_val_if_fail (GTK_IS_HANDLE_BOX (handle_box), GTK_POS_LEFT); |
| |
| return handle_box->priv->handle_position; |
| } |
| |
| /** |
| * gtk_handle_box_set_snap_edge: |
| * @handle_box: a #GtkHandleBox |
| * @edge: the snap edge, or -1 to unset the value; in which |
| * case GTK+ will try to guess an appropriate value |
| * in the future. |
| * |
| * Sets the snap edge of a handlebox. The snap edge is |
| * the edge of the detached child that must be aligned |
| * with the corresponding edge of the "ghost" left |
| * behind when the child was detached to reattach |
| * the torn-off window. Usually, the snap edge should |
| * be chosen so that it stays in the same place on |
| * the screen when the handlebox is torn off. |
| * |
| * If the snap edge is not set, then an appropriate value |
| * will be guessed from the handle position. If the |
| * handle position is %GTK_POS_RIGHT or %GTK_POS_LEFT, |
| * then the snap edge will be %GTK_POS_TOP, otherwise |
| * it will be %GTK_POS_LEFT. |
| * |
| * Deprecated: 3.4: #GtkHandleBox has been deprecated. |
| */ |
| void |
| gtk_handle_box_set_snap_edge (GtkHandleBox *handle_box, |
| GtkPositionType edge) |
| { |
| GtkHandleBoxPrivate *priv; |
| |
| g_return_if_fail (GTK_IS_HANDLE_BOX (handle_box)); |
| |
| priv = handle_box->priv; |
| |
| if (priv->snap_edge != edge) |
| { |
| priv->snap_edge = edge; |
| |
| g_object_freeze_notify (G_OBJECT (handle_box)); |
| g_object_notify (G_OBJECT (handle_box), "snap-edge"); |
| g_object_notify (G_OBJECT (handle_box), "snap-edge-set"); |
| g_object_thaw_notify (G_OBJECT (handle_box)); |
| } |
| } |
| |
| /** |
| * gtk_handle_box_get_snap_edge: |
| * @handle_box: a #GtkHandleBox |
| * |
| * Gets the edge used for determining reattachment of the handle box. |
| * See gtk_handle_box_set_snap_edge(). |
| * |
| * Return value: the edge used for determining reattachment, or |
| * (GtkPositionType)-1 if this is determined (as per default) |
| * from the handle position. |
| * |
| * Deprecated: 3.4: #GtkHandleBox has been deprecated. |
| **/ |
| GtkPositionType |
| gtk_handle_box_get_snap_edge (GtkHandleBox *handle_box) |
| { |
| g_return_val_if_fail (GTK_IS_HANDLE_BOX (handle_box), (GtkPositionType)-1); |
| |
| return handle_box->priv->snap_edge; |
| } |
| |
| /** |
| * gtk_handle_box_get_child_detached: |
| * @handle_box: a #GtkHandleBox |
| * |
| * Whether the handlebox's child is currently detached. |
| * |
| * Return value: %TRUE if the child is currently detached, otherwise %FALSE |
| * |
| * Since: 2.14 |
| * |
| * Deprecated: 3.4: #GtkHandleBox has been deprecated. |
| **/ |
| gboolean |
| gtk_handle_box_get_child_detached (GtkHandleBox *handle_box) |
| { |
| g_return_val_if_fail (GTK_IS_HANDLE_BOX (handle_box), FALSE); |
| |
| return handle_box->priv->child_detached; |
| } |
| |
| static void |
| gtk_handle_box_paint (GtkWidget *widget, |
| cairo_t *cr) |
| { |
| GtkHandleBox *hb = GTK_HANDLE_BOX (widget); |
| GtkHandleBoxPrivate *priv = hb->priv; |
| GtkBin *bin = GTK_BIN (widget); |
| GtkStyleContext *context; |
| GtkStateFlags state; |
| GtkWidget *child; |
| gint width, height; |
| GdkRectangle rect; |
| gint handle_position; |
| |
| handle_position = effective_handle_position (hb); |
| |
| width = gdk_window_get_width (priv->bin_window); |
| height = gdk_window_get_height (priv->bin_window); |
| |
| context = gtk_widget_get_style_context (widget); |
| state = gtk_widget_get_state_flags (widget); |
| |
| gtk_style_context_save (context); |
| gtk_style_context_set_state (context, state); |
| |
| gtk_render_background (context, cr, 0, 0, width, height); |
| gtk_render_frame (context, cr, 0, 0, width, height); |
| |
| switch (handle_position) |
| { |
| case GTK_POS_LEFT: |
| rect.x = 0; |
| rect.y = 0; |
| rect.width = DRAG_HANDLE_SIZE; |
| rect.height = height; |
| break; |
| case GTK_POS_RIGHT: |
| rect.x = width - DRAG_HANDLE_SIZE; |
| rect.y = 0; |
| rect.width = DRAG_HANDLE_SIZE; |
| rect.height = height; |
| break; |
| case GTK_POS_TOP: |
| rect.x = 0; |
| rect.y = 0; |
| rect.width = width; |
| rect.height = DRAG_HANDLE_SIZE; |
| break; |
| case GTK_POS_BOTTOM: |
| rect.x = 0; |
| rect.y = height - DRAG_HANDLE_SIZE; |
| rect.width = width; |
| rect.height = DRAG_HANDLE_SIZE; |
| break; |
| default: |
| g_assert_not_reached (); |
| break; |
| } |
| |
| gtk_render_handle (context, cr, |
| rect.x, rect.y, rect.width, rect.height); |
| |
| child = gtk_bin_get_child (bin); |
| if (child != NULL && gtk_widget_get_visible (child)) |
| GTK_WIDGET_CLASS (gtk_handle_box_parent_class)->draw (widget, cr); |
| |
| gtk_style_context_restore (context); |
| } |
| |
| static gboolean |
| gtk_handle_box_draw (GtkWidget *widget, |
| cairo_t *cr) |
| { |
| GtkHandleBox *hb = GTK_HANDLE_BOX (widget); |
| GtkHandleBoxPrivate *priv = hb->priv; |
| |
| if (gtk_cairo_should_draw_window (cr, gtk_widget_get_window (widget))) |
| { |
| if (priv->child_detached) |
| gtk_handle_box_draw_ghost (hb, cr); |
| } |
| else if (gtk_cairo_should_draw_window (cr, priv->bin_window)) |
| gtk_handle_box_paint (widget, cr); |
| |
| return FALSE; |
| } |
| |
| static GtkWidget * |
| gtk_handle_box_get_invisible (void) |
| { |
| static GtkWidget *handle_box_invisible = NULL; |
| |
| if (!handle_box_invisible) |
| { |
| handle_box_invisible = gtk_invisible_new (); |
| gtk_widget_show (handle_box_invisible); |
| } |
| |
| return handle_box_invisible; |
| } |
| |
| static gboolean |
| gtk_handle_box_grab_event (GtkWidget *widget, |
| GdkEvent *event, |
| GtkHandleBox *hb) |
| { |
| GtkHandleBoxPrivate *priv = hb->priv; |
| |
| switch (event->type) |
| { |
| case GDK_BUTTON_RELEASE: |
| if (priv->in_drag) /* sanity check */ |
| { |
| gtk_handle_box_end_drag (hb, event->button.time); |
| return TRUE; |
| } |
| break; |
| |
| case GDK_MOTION_NOTIFY: |
| return gtk_handle_box_motion (GTK_WIDGET (hb), (GdkEventMotion *)event); |
| break; |
| |
| default: |
| break; |
| } |
| |
| return FALSE; |
| } |
| |
| static gboolean |
| gtk_handle_box_button_press (GtkWidget *widget, |
| GdkEventButton *event) |
| { |
| GtkHandleBox *hb = GTK_HANDLE_BOX (widget); |
| GtkHandleBoxPrivate *priv = hb->priv; |
| gboolean event_handled; |
| GdkCursor *fleur; |
| gint handle_position; |
| |
| handle_position = effective_handle_position (hb); |
| |
| event_handled = FALSE; |
| if ((event->button == GDK_BUTTON_PRIMARY) && |
| (event->type == GDK_BUTTON_PRESS || event->type == GDK_2BUTTON_PRESS)) |
| { |
| GtkWidget *child; |
| gboolean in_handle; |
| |
| if (event->window != priv->bin_window) |
| return FALSE; |
| |
| child = gtk_bin_get_child (GTK_BIN (hb)); |
| |
| if (child) |
| { |
| GtkAllocation child_allocation; |
| guint border_width; |
| |
| gtk_widget_get_allocation (child, &child_allocation); |
| border_width = gtk_container_get_border_width (GTK_CONTAINER (hb)); |
| |
| switch (handle_position) |
| { |
| case GTK_POS_LEFT: |
| in_handle = event->x < DRAG_HANDLE_SIZE; |
| break; |
| case GTK_POS_TOP: |
| in_handle = event->y < DRAG_HANDLE_SIZE; |
| break; |
| case GTK_POS_RIGHT: |
| in_handle = event->x > 2 * border_width + child_allocation.width; |
| break; |
| case GTK_POS_BOTTOM: |
| in_handle = event->y > 2 * border_width + child_allocation.height; |
| break; |
| default: |
| in_handle = FALSE; |
| break; |
| } |
| } |
| else |
| { |
| in_handle = FALSE; |
| event_handled = TRUE; |
| } |
| |
| if (in_handle) |
| { |
| if (event->type == GDK_BUTTON_PRESS) /* Start a drag */ |
| { |
| GtkWidget *invisible = gtk_handle_box_get_invisible (); |
| GdkWindow *window; |
| gint root_x, root_y; |
| |
| gtk_invisible_set_screen (GTK_INVISIBLE (invisible), |
| gtk_widget_get_screen (GTK_WIDGET (hb))); |
| gdk_window_get_origin (priv->bin_window, &root_x, &root_y); |
| |
| priv->orig_x = event->x_root; |
| priv->orig_y = event->y_root; |
| |
| priv->float_allocation.x = root_x - event->x_root; |
| priv->float_allocation.y = root_y - event->y_root; |
| priv->float_allocation.width = gdk_window_get_width (priv->bin_window); |
| priv->float_allocation.height = gdk_window_get_height (priv->bin_window); |
| |
| window = gtk_widget_get_window (widget); |
| if (gdk_window_is_viewable (window)) |
| { |
| gdk_window_get_origin (window, &root_x, &root_y); |
| |
| priv->attach_allocation.x = root_x; |
| priv->attach_allocation.y = root_y; |
| priv->attach_allocation.width = gdk_window_get_width (window); |
| priv->attach_allocation.height = gdk_window_get_height (window); |
| } |
| else |
| { |
| priv->attach_allocation.x = -1; |
| priv->attach_allocation.y = -1; |
| priv->attach_allocation.width = 0; |
| priv->attach_allocation.height = 0; |
| } |
| priv->in_drag = TRUE; |
| priv->grab_device = event->device; |
| fleur = gdk_cursor_new_for_display (gtk_widget_get_display (widget), |
| GDK_FLEUR); |
| if (gdk_device_grab (event->device, |
| gtk_widget_get_window (invisible), |
| GDK_OWNERSHIP_WINDOW, |
| FALSE, |
| (GDK_BUTTON1_MOTION_MASK | |
| GDK_POINTER_MOTION_HINT_MASK | |
| GDK_BUTTON_RELEASE_MASK), |
| fleur, |
| event->time) != GDK_GRAB_SUCCESS) |
| { |
| priv->in_drag = FALSE; |
| priv->grab_device = NULL; |
| } |
| else |
| { |
| gtk_device_grab_add (invisible, priv->grab_device, TRUE); |
| g_signal_connect (invisible, "event", |
| G_CALLBACK (gtk_handle_box_grab_event), hb); |
| } |
| |
| g_object_unref (fleur); |
| event_handled = TRUE; |
| } |
| else if (priv->child_detached) /* Double click */ |
| { |
| gtk_handle_box_reattach (hb); |
| } |
| } |
| } |
| |
| return event_handled; |
| } |
| |
| static gboolean |
| gtk_handle_box_motion (GtkWidget *widget, |
| GdkEventMotion *event) |
| { |
| GtkHandleBox *hb = GTK_HANDLE_BOX (widget); |
| GtkHandleBoxPrivate *priv = hb->priv; |
| GtkWidget *child; |
| gint new_x, new_y; |
| gint snap_edge; |
| gboolean is_snapped = FALSE; |
| gint handle_position; |
| GdkGeometry geometry; |
| GdkScreen *screen, *pointer_screen; |
| |
| if (!priv->in_drag) |
| return FALSE; |
| handle_position = effective_handle_position (hb); |
| |
| /* Calculate the attachment point on the float, if the float |
| * were detached |
| */ |
| new_x = 0; |
| new_y = 0; |
| screen = gtk_widget_get_screen (widget); |
| gdk_device_get_position (event->device, |
| &pointer_screen, |
| &new_x, &new_y); |
| if (pointer_screen != screen) |
| { |
| new_x = priv->orig_x; |
| new_y = priv->orig_y; |
| } |
| |
| new_x += priv->float_allocation.x; |
| new_y += priv->float_allocation.y; |
| |
| snap_edge = priv->snap_edge; |
| if (snap_edge == -1) |
| snap_edge = (handle_position == GTK_POS_LEFT || |
| handle_position == GTK_POS_RIGHT) ? |
| GTK_POS_TOP : GTK_POS_LEFT; |
| |
| if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL) |
| switch (snap_edge) |
| { |
| case GTK_POS_LEFT: |
| snap_edge = GTK_POS_RIGHT; |
| break; |
| case GTK_POS_RIGHT: |
| snap_edge = GTK_POS_LEFT; |
| break; |
| default: |
| break; |
| } |
| |
| /* First, check if the snapped edge is aligned |
| */ |
| switch (snap_edge) |
| { |
| case GTK_POS_TOP: |
| is_snapped = abs (priv->attach_allocation.y - new_y) < TOLERANCE; |
| break; |
| case GTK_POS_BOTTOM: |
| is_snapped = abs (priv->attach_allocation.y + (gint)priv->attach_allocation.height - |
| new_y - (gint)priv->float_allocation.height) < TOLERANCE; |
| break; |
| case GTK_POS_LEFT: |
| is_snapped = abs (priv->attach_allocation.x - new_x) < TOLERANCE; |
| break; |
| case GTK_POS_RIGHT: |
| is_snapped = abs (priv->attach_allocation.x + (gint)priv->attach_allocation.width - |
| new_x - (gint)priv->float_allocation.width) < TOLERANCE; |
| break; |
| } |
| |
| /* Next, check if coordinates in the other direction are sufficiently |
| * aligned |
| */ |
| if (is_snapped) |
| { |
| gint float_pos1 = 0; /* Initialize to suppress warnings */ |
| gint float_pos2 = 0; |
| gint attach_pos1 = 0; |
| gint attach_pos2 = 0; |
| |
| switch (snap_edge) |
| { |
| case GTK_POS_TOP: |
| case GTK_POS_BOTTOM: |
| attach_pos1 = priv->attach_allocation.x; |
| attach_pos2 = priv->attach_allocation.x + priv->attach_allocation.width; |
| float_pos1 = new_x; |
| float_pos2 = new_x + priv->float_allocation.width; |
| break; |
| case GTK_POS_LEFT: |
| case GTK_POS_RIGHT: |
| attach_pos1 = priv->attach_allocation.y; |
| attach_pos2 = priv->attach_allocation.y + priv->attach_allocation.height; |
| float_pos1 = new_y; |
| float_pos2 = new_y + priv->float_allocation.height; |
| break; |
| } |
| |
| is_snapped = ((attach_pos1 - TOLERANCE < float_pos1) && |
| (attach_pos2 + TOLERANCE > float_pos2)) || |
| ((float_pos1 - TOLERANCE < attach_pos1) && |
| (float_pos2 + TOLERANCE > attach_pos2)); |
| } |
| |
| child = gtk_bin_get_child (GTK_BIN (hb)); |
| |
| if (is_snapped) |
| { |
| if (priv->child_detached) |
| { |
| priv->child_detached = FALSE; |
| gdk_window_hide (priv->float_window); |
| gdk_window_reparent (priv->bin_window, gtk_widget_get_window (widget), 0, 0); |
| priv->float_window_mapped = FALSE; |
| g_signal_emit (hb, |
| handle_box_signals[SIGNAL_CHILD_ATTACHED], |
| 0, |
| child); |
| |
| gtk_widget_queue_resize (widget); |
| } |
| } |
| else |
| { |
| gint width, height; |
| |
| width = gdk_window_get_width (priv->float_window); |
| height = gdk_window_get_height (priv->float_window); |
| |
| switch (handle_position) |
| { |
| case GTK_POS_LEFT: |
| new_y += ((gint)priv->float_allocation.height - height) / 2; |
| break; |
| case GTK_POS_RIGHT: |
| new_x += (gint)priv->float_allocation.width - width; |
| new_y += ((gint)priv->float_allocation.height - height) / 2; |
| break; |
| case GTK_POS_TOP: |
| new_x += ((gint)priv->float_allocation.width - width) / 2; |
| break; |
| case GTK_POS_BOTTOM: |
| new_x += ((gint)priv->float_allocation.width - width) / 2; |
| new_y += (gint)priv->float_allocation.height - height; |
| break; |
| } |
| |
| if (priv->child_detached) |
| { |
| gdk_window_move (priv->float_window, new_x, new_y); |
| gdk_window_raise (priv->float_window); |
| } |
| else |
| { |
| guint border_width; |
| GtkRequisition child_requisition; |
| |
| priv->child_detached = TRUE; |
| |
| if (child) |
| { |
| gtk_widget_get_preferred_size (child, &child_requisition, NULL); |
| } |
| else |
| { |
| child_requisition.width = 0; |
| child_requisition.height = 0; |
| } |
| |
| border_width = gtk_container_get_border_width (GTK_CONTAINER (hb)); |
| width = child_requisition.width + 2 * border_width; |
| height = child_requisition.height + 2 * border_width; |
| |
| if (handle_position == GTK_POS_LEFT || handle_position == GTK_POS_RIGHT) |
| width += DRAG_HANDLE_SIZE; |
| else |
| height += DRAG_HANDLE_SIZE; |
| |
| gdk_window_move_resize (priv->float_window, new_x, new_y, width, height); |
| gdk_window_reparent (priv->bin_window, priv->float_window, 0, 0); |
| gdk_window_set_geometry_hints (priv->float_window, &geometry, GDK_HINT_POS); |
| gdk_window_show (priv->float_window); |
| priv->float_window_mapped = TRUE; |
| #if 0 |
| /* this extra move is necessary if we use decorations, or our |
| * window manager insists on decorations. |
| */ |
| gdk_display_sync (gtk_widget_get_display (widget)); |
| gdk_window_move (priv->float_window, new_x, new_y); |
| gdk_display_sync (gtk_widget_get_display (widget)); |
| #endif /* 0 */ |
| g_signal_emit (hb, |
| handle_box_signals[SIGNAL_CHILD_DETACHED], |
| 0, |
| child); |
| |
| gtk_widget_queue_resize (widget); |
| } |
| } |
| |
| return TRUE; |
| } |
| |
| static void |
| gtk_handle_box_add (GtkContainer *container, |
| GtkWidget *widget) |
| { |
| GtkHandleBoxPrivate *priv = GTK_HANDLE_BOX (container)->priv; |
| |
| gtk_widget_set_parent_window (widget, priv->bin_window); |
| GTK_CONTAINER_CLASS (gtk_handle_box_parent_class)->add (container, widget); |
| } |
| |
| static void |
| gtk_handle_box_remove (GtkContainer *container, |
| GtkWidget *widget) |
| { |
| GTK_CONTAINER_CLASS (gtk_handle_box_parent_class)->remove (container, widget); |
| |
| gtk_handle_box_reattach (GTK_HANDLE_BOX (container)); |
| } |
| |
| static gint |
| gtk_handle_box_delete_event (GtkWidget *widget, |
| GdkEventAny *event) |
| { |
| GtkHandleBox *hb = GTK_HANDLE_BOX (widget); |
| GtkHandleBoxPrivate *priv = hb->priv; |
| |
| if (event->window == priv->float_window) |
| { |
| gtk_handle_box_reattach (hb); |
| |
| return TRUE; |
| } |
| |
| return FALSE; |
| } |
| |
| static void |
| gtk_handle_box_reattach (GtkHandleBox *hb) |
| { |
| GtkHandleBoxPrivate *priv = hb->priv; |
| GtkWidget *child; |
| GtkWidget *widget = GTK_WIDGET (hb); |
| |
| if (priv->child_detached) |
| { |
| priv->child_detached = FALSE; |
| if (gtk_widget_get_realized (widget)) |
| { |
| gdk_window_hide (priv->float_window); |
| gdk_window_reparent (priv->bin_window, gtk_widget_get_window (widget), |
| 0, 0); |
| |
| child = gtk_bin_get_child (GTK_BIN (hb)); |
| if (child) |
| g_signal_emit (hb, |
| handle_box_signals[SIGNAL_CHILD_ATTACHED], |
| 0, |
| child); |
| |
| } |
| priv->float_window_mapped = FALSE; |
| } |
| if (priv->in_drag) |
| gtk_handle_box_end_drag (hb, GDK_CURRENT_TIME); |
| |
| gtk_widget_queue_resize (GTK_WIDGET (hb)); |
| } |
| |
| static void |
| gtk_handle_box_end_drag (GtkHandleBox *hb, |
| guint32 time) |
| { |
| GtkHandleBoxPrivate *priv = hb->priv; |
| GtkWidget *invisible = gtk_handle_box_get_invisible (); |
| |
| priv->in_drag = FALSE; |
| |
| gtk_device_grab_remove (invisible, priv->grab_device); |
| gdk_device_ungrab (priv->grab_device, time); |
| g_signal_handlers_disconnect_by_func (invisible, |
| G_CALLBACK (gtk_handle_box_grab_event), |
| hb); |
| |
| priv->grab_device = NULL; |
| } |