1 /* this file is part of evince, a gnome document viewer
3 * Copyright (C) 2004 Red Hat, Inc.
4 * Copyright (C) 2004, 2005 Anders Carlsson <andersca@gnome.org>
7 * Jonathan Blandford <jrb@alum.mit.edu>
8 * Anders Carlsson <andersca@gnome.org>
10 * Evince is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * Evince is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
32 #include "ev-sidebar-thumbnails.h"
33 #include "ev-document-thumbnails.h"
34 #include "ev-document-misc.h"
35 #include "ev-window.h"
38 #define THUMBNAIL_WIDTH 100
40 /* Amount of time we devote to each iteration of the idle, in microseconds */
41 #define IDLE_WORK_LENGTH 5000
43 struct _EvSidebarThumbnailsPrivate {
45 GtkAdjustment *vadjustment;
46 GtkListStore *list_store;
50 gint current_page, n_pages, pages_done;
51 GtkTreeIter current_page_iter;
61 G_DEFINE_TYPE (EvSidebarThumbnails, ev_sidebar_thumbnails, GTK_TYPE_VBOX);
63 #define EV_SIDEBAR_THUMBNAILS_GET_PRIVATE(object) \
64 (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR_THUMBNAILS, EvSidebarThumbnailsPrivate));
67 ev_sidebar_thumbnails_destroy (GtkObject *object)
69 EvSidebarThumbnails *ev_sidebar_thumbnails = EV_SIDEBAR_THUMBNAILS (object);
70 EvSidebarThumbnailsPrivate *priv = ev_sidebar_thumbnails->priv;
72 if (priv->idle_id != 0) {
73 g_source_remove (priv->idle_id);
78 GTK_OBJECT_CLASS (ev_sidebar_thumbnails_parent_class)->destroy (object);
82 ev_sidebar_thumbnails_class_init (EvSidebarThumbnailsClass *ev_sidebar_thumbnails_class)
84 GObjectClass *g_object_class;
85 GtkObjectClass *gtk_object_class;
87 g_object_class = G_OBJECT_CLASS (ev_sidebar_thumbnails_class);
88 gtk_object_class = GTK_OBJECT_CLASS (ev_sidebar_thumbnails_class);
90 gtk_object_class->destroy = ev_sidebar_thumbnails_destroy;
92 g_type_class_add_private (g_object_class, sizeof (EvSidebarThumbnailsPrivate));
97 adjustment_changed_cb (GtkAdjustment *adjustment,
98 EvSidebarThumbnails *ev_sidebar_thumbnails)
100 EvSidebarThumbnailsPrivate *priv;
104 gboolean thumbnail_set;
106 priv = ev_sidebar_thumbnails->priv = EV_SIDEBAR_THUMBNAILS_GET_PRIVATE (ev_sidebar_thumbnails);
108 gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (priv->tree_view),
114 page = gtk_tree_path_get_indices (path)[0] + 1;
115 if (page == priv->current_page)
117 gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->list_store),
119 gtk_tree_model_get (GTK_TREE_MODEL (priv->list_store), &iter,
120 COLUMN_THUMBNAIL_SET, &thumbnail_set,
122 if (!thumbnail_set) {
123 priv->current_page = page;
124 priv->current_page_iter = iter;
130 ev_sidebar_tree_selection_changed (GtkTreeSelection *selection,
131 EvSidebarThumbnails *ev_sidebar_thumbnails)
133 EvSidebarThumbnailsPrivate *priv;
139 priv = ev_sidebar_thumbnails->priv = EV_SIDEBAR_THUMBNAILS_GET_PRIVATE (ev_sidebar_thumbnails);
141 if (!gtk_tree_selection_get_selected (selection, NULL, &iter))
144 path = gtk_tree_model_get_path (GTK_TREE_MODEL (priv->list_store),
147 page = gtk_tree_path_get_indices (path)[0] + 1;
149 gtk_tree_path_free (path);
151 window = gtk_widget_get_ancestor (GTK_WIDGET (ev_sidebar_thumbnails),
153 if (window && ev_document_get_page (priv->document) != page) {
154 ev_window_open_page (EV_WINDOW (window), page);
159 ev_sidebar_thumbnails_init (EvSidebarThumbnails *ev_sidebar_thumbnails)
162 EvSidebarThumbnailsPrivate *priv;
163 GtkCellRenderer *renderer;
164 GtkTreeSelection *selection;
166 priv = ev_sidebar_thumbnails->priv = EV_SIDEBAR_THUMBNAILS_GET_PRIVATE (ev_sidebar_thumbnails);
168 priv->list_store = gtk_list_store_new (NUM_COLUMNS, G_TYPE_STRING, GDK_TYPE_PIXBUF, G_TYPE_BOOLEAN);
169 priv->tree_view = gtk_tree_view_new_with_model (GTK_TREE_MODEL (priv->list_store));
171 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
172 g_signal_connect (selection, "changed",
173 G_CALLBACK (ev_sidebar_tree_selection_changed), ev_sidebar_thumbnails);
174 gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE);
175 renderer = g_object_new (GTK_TYPE_CELL_RENDERER_PIXBUF,
179 gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (priv->tree_view), -1,
183 gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (priv->tree_view), -1,
184 NULL, gtk_cell_renderer_text_new (),
187 g_object_unref (priv->list_store);
189 swindow = gtk_scrolled_window_new (NULL, NULL);
190 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
191 GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
192 gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (swindow),
194 priv->vadjustment = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (swindow));
195 g_signal_connect (G_OBJECT (priv->vadjustment), "value-changed",
196 G_CALLBACK (adjustment_changed_cb),
197 ev_sidebar_thumbnails);
198 gtk_container_add (GTK_CONTAINER (swindow), priv->tree_view);
199 gtk_box_pack_start (GTK_BOX (ev_sidebar_thumbnails), swindow, TRUE, TRUE, 0);
201 gtk_widget_show_all (swindow);
205 ev_sidebar_thumbnails_new (void)
207 GtkWidget *ev_sidebar_thumbnails;
209 ev_sidebar_thumbnails = g_object_new (EV_TYPE_SIDEBAR_THUMBNAILS, NULL);
211 return ev_sidebar_thumbnails;
215 do_one_iteration (EvSidebarThumbnails *ev_sidebar_thumbnails)
217 EvSidebarThumbnailsPrivate *priv = ev_sidebar_thumbnails->priv;
219 gboolean thumbnail_set;
221 gtk_tree_model_get (GTK_TREE_MODEL (priv->list_store),
222 &(priv->current_page_iter),
223 COLUMN_THUMBNAIL_SET, &thumbnail_set,
225 if (!thumbnail_set) {
226 pixbuf = ev_document_thumbnails_get_thumbnail
227 (EV_DOCUMENT_THUMBNAILS (priv->document),
228 priv->current_page, THUMBNAIL_WIDTH, TRUE);
230 gtk_list_store_set (priv->list_store,
231 &(priv->current_page_iter),
232 COLUMN_PIXBUF, pixbuf,
233 COLUMN_THUMBNAIL_SET, TRUE,
236 g_object_unref (pixbuf);
240 priv->current_page++;
242 if (priv->current_page > priv->n_pages) {
243 priv->current_page = 1;
244 gtk_tree_model_get_iter_first (GTK_TREE_MODEL (priv->list_store),
245 &(priv->current_page_iter));
247 gtk_tree_model_iter_next (GTK_TREE_MODEL (priv->list_store),
248 &(priv->current_page_iter));
251 if (priv->pages_done == priv->n_pages)
258 populate_thumbnails_idle (gpointer data)
262 gdouble time_elapsed = 0;
264 EvSidebarThumbnails *ev_sidebar_thumbnails = EV_SIDEBAR_THUMBNAILS (data);
265 EvSidebarThumbnailsPrivate *priv = ev_sidebar_thumbnails->priv;
267 #if PROFILE_THUMB == 1
268 static GTimer *total_timer;
269 static gboolean first_time = TRUE;
272 total_timer = g_timer_new ();
274 g_timer_start (total_timer);
278 /* undo the thumbnailing idle and handler */
279 if (priv->pages_done == priv->n_pages) {
281 g_signal_handlers_disconnect_by_func (priv->vadjustment,
282 adjustment_changed_cb,
283 ev_sidebar_thumbnails);
284 #if PROFILE_THUMB == 1
285 time_elapsed = g_timer_elapsed (total_timer, NULL);
286 g_timer_destroy (total_timer);
287 g_print ("%d rows done in %f seconds\n",
288 gtk_tree_model_iter_n_children (GTK_TREE_MODEL (priv->list_store), NULL),
294 timer = g_timer_new ();
296 g_timer_start (timer);
297 while (do_one_iteration (ev_sidebar_thumbnails)) {
299 time_elapsed = g_timer_elapsed (timer, NULL);
300 if (time_elapsed > IDLE_WORK_LENGTH/1000000)
303 g_timer_destroy (timer);
304 #if PROFILE_THUMB == 2
305 g_print ("%d rows done this idle in %f seconds\n", i, time_elapsed);
312 ev_sidebar_thumbnails_select_page (EvSidebarThumbnails *sidebar,
316 GtkTreeSelection *selection;
318 /* if the EvSidebar's document can't provide thumbnails */
319 if (sidebar->priv->document == NULL)
322 path = gtk_tree_path_new_from_indices (page - 1, -1);
323 selection = gtk_tree_view_get_selection
324 (GTK_TREE_VIEW (sidebar->priv->tree_view));
327 gtk_tree_selection_select_path (selection, path);
328 gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (sidebar->priv->tree_view),
329 path, NULL, FALSE, 0.0, 0.0);
330 gtk_tree_path_free (path);
336 ev_sidebar_thumbnails_set_document (EvSidebarThumbnails *sidebar_thumbnails,
337 EvDocument *document)
339 GdkPixbuf *loading_icon;
343 gint width = THUMBNAIL_WIDTH;
344 gint height = THUMBNAIL_WIDTH;
346 EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
348 g_return_if_fail (EV_IS_DOCUMENT_THUMBNAILS (document));
350 if (priv->idle_id != 0) {
351 g_source_remove (priv->idle_id);
353 n_pages = ev_document_get_n_pages (document);
355 priv->document = document;
356 priv->idle_id = g_idle_add (populate_thumbnails_idle, sidebar_thumbnails);
357 priv->n_pages = n_pages;
359 /* We get the dimensions of the first doc so that we can make a blank
361 ev_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (priv->document),
362 1, THUMBNAIL_WIDTH, &width, &height);
363 loading_icon = ev_document_misc_get_thumbnail_frame (width, height, NULL);
365 gtk_list_store_clear (priv->list_store);
367 for (i = 1; i <= n_pages; i++) {
368 page = g_strdup_printf ("<i>%d</i>", i);
369 gtk_list_store_append (priv->list_store, &iter);
370 gtk_list_store_set (priv->list_store, &iter,
371 COLUMN_PAGE_STRING, page,
372 COLUMN_PIXBUF, loading_icon,
373 COLUMN_THUMBNAIL_SET, FALSE,
378 g_object_unref (loading_icon);
379 gtk_tree_model_get_iter_first (GTK_TREE_MODEL (priv->list_store),
380 &(priv->current_page_iter));
381 priv->current_page = 1;
382 priv->pages_done = 0;