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-job-queue.h"
36 #include "ev-window.h"
39 #define THUMBNAIL_WIDTH 100
41 /* Amount of time we devote to each iteration of the idle, in microseconds */
42 #define IDLE_WORK_LENGTH 5000
44 struct _EvSidebarThumbnailsPrivate {
46 GtkAdjustment *vadjustment;
47 GtkListStore *list_store;
50 gint n_pages, pages_done;
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_clear_model (EvSidebarThumbnails *sidebar);
70 ev_sidebar_thumbnails_dispose (GObject *object)
72 EvSidebarThumbnails *sidebar_thumbnails = EV_SIDEBAR_THUMBNAILS (object);
74 ev_sidebar_thumbnails_clear_model (sidebar_thumbnails);
76 G_OBJECT_CLASS (ev_sidebar_thumbnails_parent_class)->dispose (object);
80 ev_sidebar_thumbnails_class_init (EvSidebarThumbnailsClass *ev_sidebar_thumbnails_class)
82 GObjectClass *g_object_class;
83 GtkObjectClass *gtk_object_class;
85 g_object_class = G_OBJECT_CLASS (ev_sidebar_thumbnails_class);
86 gtk_object_class = GTK_OBJECT_CLASS (ev_sidebar_thumbnails_class);
88 g_object_class->dispose = ev_sidebar_thumbnails_dispose;
90 g_type_class_add_private (g_object_class, sizeof (EvSidebarThumbnailsPrivate));
94 adjustment_changed_cb (GtkAdjustment *adjustment,
95 EvSidebarThumbnails *ev_sidebar_thumbnails)
97 EvSidebarThumbnailsPrivate *priv;
101 gboolean thumbnail_set;
103 priv = ev_sidebar_thumbnails->priv = EV_SIDEBAR_THUMBNAILS_GET_PRIVATE (ev_sidebar_thumbnails);
105 gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (priv->tree_view),
111 page = gtk_tree_path_get_indices (path)[0];
112 gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->list_store),
114 gtk_tree_model_get (GTK_TREE_MODEL (priv->list_store), &iter,
115 COLUMN_THUMBNAIL_SET, &thumbnail_set,
120 ev_sidebar_tree_selection_changed (GtkTreeSelection *selection,
121 EvSidebarThumbnails *ev_sidebar_thumbnails)
123 EvSidebarThumbnailsPrivate *priv;
124 EvPageCache *page_cache;
129 priv = ev_sidebar_thumbnails->priv = EV_SIDEBAR_THUMBNAILS_GET_PRIVATE (ev_sidebar_thumbnails);
131 if (!gtk_tree_selection_get_selected (selection, NULL, &iter))
134 path = gtk_tree_model_get_path (GTK_TREE_MODEL (priv->list_store),
136 page = gtk_tree_path_get_indices (path)[0];
137 gtk_tree_path_free (path);
139 page_cache = ev_document_get_page_cache (priv->document);
140 ev_page_cache_set_current_page (page_cache, page);
144 ev_sidebar_thumbnails_init (EvSidebarThumbnails *ev_sidebar_thumbnails)
147 EvSidebarThumbnailsPrivate *priv;
148 GtkCellRenderer *renderer;
149 GtkTreeSelection *selection;
151 priv = ev_sidebar_thumbnails->priv = EV_SIDEBAR_THUMBNAILS_GET_PRIVATE (ev_sidebar_thumbnails);
153 priv->list_store = gtk_list_store_new (NUM_COLUMNS, G_TYPE_STRING, GDK_TYPE_PIXBUF, G_TYPE_BOOLEAN, EV_TYPE_JOB_THUMBNAIL);
154 priv->tree_view = gtk_tree_view_new_with_model (GTK_TREE_MODEL (priv->list_store));
156 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
157 g_signal_connect (selection, "changed",
158 G_CALLBACK (ev_sidebar_tree_selection_changed), ev_sidebar_thumbnails);
159 gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE);
160 renderer = g_object_new (GTK_TYPE_CELL_RENDERER_PIXBUF,
164 gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (priv->tree_view), -1,
168 gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (priv->tree_view), -1,
169 NULL, gtk_cell_renderer_text_new (),
172 g_object_unref (priv->list_store);
174 swindow = gtk_scrolled_window_new (NULL, NULL);
175 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
176 GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
177 gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (swindow),
179 priv->vadjustment = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (swindow));
180 g_signal_connect (G_OBJECT (priv->vadjustment), "value-changed",
181 G_CALLBACK (adjustment_changed_cb),
182 ev_sidebar_thumbnails);
183 gtk_container_add (GTK_CONTAINER (swindow), priv->tree_view);
184 gtk_box_pack_start (GTK_BOX (ev_sidebar_thumbnails), swindow, TRUE, TRUE, 0);
186 gtk_widget_show_all (swindow);
190 ev_sidebar_thumbnails_new (void)
192 GtkWidget *ev_sidebar_thumbnails;
194 ev_sidebar_thumbnails = g_object_new (EV_TYPE_SIDEBAR_THUMBNAILS, NULL);
196 return ev_sidebar_thumbnails;
200 page_changed_cb (EvPageCache *page_cache,
202 EvSidebarThumbnails *sidebar)
205 GtkTreeSelection *selection;
207 path = gtk_tree_path_new_from_indices (page, -1);
208 selection = gtk_tree_view_get_selection
209 (GTK_TREE_VIEW (sidebar->priv->tree_view));
211 gtk_tree_selection_select_path (selection, path);
212 gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (sidebar->priv->tree_view),
213 path, NULL, FALSE, 0.0, 0.0);
214 gtk_tree_path_free (path);
218 thumbnail_job_completed_callback (EvJobThumbnail *job,
219 EvSidebarThumbnails *sidebar_thumbnails)
221 EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
224 iter = (GtkTreeIter *) g_object_get_data (G_OBJECT (job), "tree_iter");
225 gtk_list_store_set (priv->list_store,
227 COLUMN_PIXBUF, job->thumbnail,
228 COLUMN_THUMBNAIL_SET, TRUE,
234 ev_sidebar_thumbnails_set_document (EvSidebarThumbnails *sidebar_thumbnails,
235 EvDocument *document)
237 GdkPixbuf *loading_icon;
240 gint width = THUMBNAIL_WIDTH;
241 gint height = THUMBNAIL_WIDTH;
242 EvPageCache *page_cache;
244 EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
246 g_return_if_fail (EV_IS_DOCUMENT_THUMBNAILS (document));
248 page_cache = ev_document_get_page_cache (document);
249 n_pages = ev_page_cache_get_n_pages (page_cache);
251 priv->document = document;
252 priv->n_pages = n_pages;
254 /* We get the dimensions of the first doc so that we can make a blank
256 g_mutex_lock (EV_DOC_MUTEX);
257 ev_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (priv->document),
258 0, THUMBNAIL_WIDTH, &width, &height);
259 g_mutex_unlock (EV_DOC_MUTEX);
261 loading_icon = ev_document_misc_get_thumbnail_frame (width, height, NULL);
263 ev_sidebar_thumbnails_clear_model (sidebar_thumbnails);
264 for (i = 0; i < n_pages; i++) {
269 job = ev_job_thumbnail_new (priv->document, i, THUMBNAIL_WIDTH);
270 page_label = ev_page_cache_get_page_label (page_cache, i);
271 page_string = g_markup_printf_escaped ("<i>%s</i>", page_label);
273 gtk_list_store_append (priv->list_store, &iter);
274 gtk_list_store_set (priv->list_store, &iter,
275 COLUMN_PAGE_STRING, page_string,
276 COLUMN_PIXBUF, loading_icon,
277 COLUMN_THUMBNAIL_SET, FALSE,
281 g_free (page_string);
282 ev_job_queue_add_job (job, EV_JOB_PRIORITY_LOW);
283 g_object_set_data_full (G_OBJECT (job), "tree_iter",
284 gtk_tree_iter_copy (&iter),
285 (GDestroyNotify) gtk_tree_iter_free);
286 g_signal_connect (job, "finished",
287 G_CALLBACK (thumbnail_job_completed_callback),
291 g_object_unref (loading_icon);
293 /* Connect to the signal and trigger a fake callback */
294 g_signal_connect (page_cache, "page-changed", G_CALLBACK (page_changed_cb), sidebar_thumbnails);
295 page_changed_cb (page_cache, ev_page_cache_get_current_page (page_cache), sidebar_thumbnails);
300 ev_sidebar_thumbnails_clear_job (GtkTreeModel *model,
307 gtk_tree_model_get (model, iter, COLUMN_JOB, &job, -1);
310 ev_job_queue_remove_job (job);
311 g_signal_handlers_disconnect_by_func (job, thumbnail_job_completed_callback, data);
312 g_object_unref (job);
319 ev_sidebar_thumbnails_clear_model (EvSidebarThumbnails *sidebar_thumbnails)
321 EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
323 gtk_tree_model_foreach (GTK_TREE_MODEL (priv->list_store), ev_sidebar_thumbnails_clear_job, sidebar_thumbnails);
324 gtk_list_store_clear (priv->list_store);