| /* |
| * Copyright © 2008 Kristian Høgsberg |
| * Copyright © 2009 Chris Wilson |
| * |
| * Permission to use, copy, modify, distribute, and sell this software and its |
| * documentation for any purpose is hereby granted without fee, provided that |
| * the above copyright notice appear in all copies and that both that copyright |
| * notice and this permission notice appear in supporting documentation, and |
| * that the name of the copyright holders not be used in advertising or |
| * publicity pertaining to distribution of the software without specific, |
| * written prior permission. The copyright holders make no representations |
| * about the suitability of this software for any purpose. It is provided "as |
| * is" without express or implied warranty. |
| * |
| * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| * OF THIS SOFTWARE. |
| */ |
| |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include <math.h> |
| #include <time.h> |
| #include <cairo.h> |
| #include <glib.h> |
| #include <gio/gio.h> |
| #include <linux/input.h> |
| |
| #include <glib/poppler-document.h> |
| #include <glib/poppler-page.h> |
| |
| #include <wayland-client.h> |
| |
| #include "window.h" |
| |
| struct view { |
| struct window *window; |
| struct display *display; |
| |
| PopplerDocument *document; |
| int page; |
| int fullscreen; |
| }; |
| |
| static void |
| view_draw(struct view *view) |
| { |
| struct rectangle allocation; |
| cairo_surface_t *surface; |
| cairo_t *cr; |
| PopplerPage *page; |
| double width, height, doc_aspect, window_aspect, scale; |
| |
| if (view->fullscreen) |
| window_set_transparent(view->window, 0); |
| else |
| window_set_transparent(view->window, 1); |
| |
| window_draw(view->window); |
| |
| window_get_child_allocation(view->window, &allocation); |
| |
| surface = window_get_surface(view->window); |
| |
| cr = cairo_create(surface); |
| cairo_rectangle(cr, allocation.x, allocation.y, |
| allocation.width, allocation.height); |
| cairo_clip(cr); |
| |
| cairo_set_source_rgba(cr, 0, 0, 0, 0.8); |
| cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
| cairo_paint(cr); |
| |
| if(!view->document) { |
| cairo_destroy(cr); |
| cairo_surface_destroy(surface); |
| window_flush(view->window); |
| return; |
| } |
| |
| page = poppler_document_get_page(view->document, view->page); |
| poppler_page_get_size(page, &width, &height); |
| doc_aspect = width / height; |
| window_aspect = (double) allocation.width / allocation.height; |
| if (doc_aspect < window_aspect) |
| scale = allocation.height / height; |
| else |
| scale = allocation.width / width; |
| cairo_translate(cr, allocation.x, allocation.y); |
| cairo_scale(cr, scale, scale); |
| cairo_translate(cr, |
| (allocation.width - width * scale) / 2 / scale, |
| (allocation.height - height * scale) / 2 / scale); |
| cairo_rectangle(cr, 0, 0, width, height); |
| cairo_set_operator(cr, CAIRO_OPERATOR_OVER); |
| cairo_set_source_rgb(cr, 1, 1, 1); |
| cairo_fill(cr); |
| poppler_page_render(page, cr); |
| cairo_destroy(cr); |
| cairo_surface_destroy(surface); |
| g_object_unref(G_OBJECT(page)); |
| window_flush(view->window); |
| } |
| |
| static void |
| redraw_handler(struct window *window, void *data) |
| { |
| struct view *view = data; |
| |
| view_draw(view); |
| } |
| |
| static void |
| resize_handler(struct window *window, |
| int32_t width, int32_t height, void *data) |
| { |
| struct view *view = data; |
| |
| window_set_child_size(view->window, width, height); |
| window_schedule_redraw(window); |
| } |
| |
| static void |
| view_page_up(struct view *view) |
| { |
| if(view->page <= 0) |
| return; |
| |
| view->page--; |
| window_schedule_redraw(view->window); |
| } |
| |
| static void |
| view_page_down(struct view *view) |
| { |
| if(!view->document || |
| view->page >= poppler_document_get_n_pages(view->document) - 1) { |
| return; |
| } |
| |
| view->page++; |
| window_schedule_redraw(view->window); |
| } |
| |
| static void |
| button_handler(struct window *window, struct input *input, uint32_t time, |
| int button, int state, void *data) |
| { |
| struct view *view = data; |
| |
| if(!state) |
| return; |
| |
| switch(button) { |
| case 275: |
| view_page_up(view); |
| break; |
| case 276: |
| view_page_down(view); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void |
| key_handler(struct window *window, struct input *input, uint32_t time, |
| uint32_t key, uint32_t unicode, uint32_t state, void *data) |
| { |
| struct view *view = data; |
| |
| if(!state) |
| return; |
| |
| switch (key) { |
| case KEY_F11: |
| view->fullscreen ^= 1; |
| window_set_fullscreen(window, view->fullscreen); |
| window_schedule_redraw(view->window); |
| break; |
| case KEY_SPACE: |
| case KEY_PAGEDOWN: |
| case KEY_RIGHT: |
| case KEY_DOWN: |
| view_page_down(view); |
| break; |
| case KEY_BACKSPACE: |
| case KEY_PAGEUP: |
| case KEY_LEFT: |
| case KEY_UP: |
| view_page_up(view); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void |
| keyboard_focus_handler(struct window *window, |
| struct input *device, void *data) |
| { |
| struct view *view = data; |
| window_schedule_redraw(view->window); |
| } |
| |
| static struct view * |
| view_create(struct display *display, |
| uint32_t key, const char *filename, int fullscreen) |
| { |
| struct view *view; |
| gchar *basename; |
| gchar *title; |
| GFile *file = NULL; |
| GError *error = NULL; |
| |
| view = malloc(sizeof *view); |
| if (view == NULL) |
| return view; |
| memset(view, 0, sizeof *view); |
| |
| file = g_file_new_for_commandline_arg(filename); |
| basename = g_file_get_basename(file); |
| if(!basename) { |
| title = "Wayland View"; |
| } else { |
| title = g_strdup_printf("Wayland View - %s", basename); |
| g_free(basename); |
| } |
| |
| view->document = poppler_document_new_from_file(g_file_get_uri(file), |
| NULL, &error); |
| |
| if(error) { |
| title = "File not found"; |
| } |
| |
| view->window = window_create(display, 500, 400); |
| window_set_title(view->window, title); |
| view->display = display; |
| |
| window_set_user_data(view->window, view); |
| window_set_redraw_handler(view->window, redraw_handler); |
| window_set_resize_handler(view->window, resize_handler); |
| window_set_key_handler(view->window, key_handler); |
| window_set_keyboard_focus_handler(view->window, |
| keyboard_focus_handler); |
| window_set_button_handler(view->window, button_handler); |
| view->page = 0; |
| |
| view->fullscreen = fullscreen; |
| window_set_fullscreen(view->window, view->fullscreen); |
| |
| view_draw(view); |
| |
| return view; |
| } |
| |
| static int option_fullscreen; |
| |
| static const GOptionEntry option_entries[] = { |
| { "fullscreen", 'f', 0, G_OPTION_ARG_NONE, |
| &option_fullscreen, "Run in fullscreen mode" }, |
| { NULL } |
| }; |
| |
| int |
| main(int argc, char *argv[]) |
| { |
| struct display *d; |
| int i; |
| |
| d = display_create(&argc, &argv, option_entries); |
| if (d == NULL) { |
| fprintf(stderr, "failed to create display: %m\n"); |
| return -1; |
| } |
| |
| for (i = 1; i < argc; i++) |
| view_create (d, i, argv[i], option_fullscreen); |
| |
| display_run(d); |
| |
| return 0; |
| } |