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.
31 #include <glib/gi18n.h>
33 #include "ev-sidebar-page.h"
34 #include "ev-sidebar-thumbnails.h"
35 #include "ev-document-thumbnails.h"
36 #include "ev-document-misc.h"
37 #include "ev-job-queue.h"
38 #include "ev-window.h"
41 #define THUMBNAIL_WIDTH 100
43 /* The IconView doesn't scale nearly as well as the TreeView, so we arbitrarily
45 #define MAX_ICON_VIEW_PAGE_COUNT 1500
48 struct _EvSidebarThumbnailsPrivate {
52 GtkAdjustment *vadjustment;
53 GtkListStore *list_store;
54 GdkPixbuf *loading_icon;
56 EvPageCache *page_cache;
58 gint n_pages, pages_done;
63 gint start_page, end_page;
79 static void ev_sidebar_thumbnails_clear_model (EvSidebarThumbnails *sidebar);
80 static gboolean ev_sidebar_thumbnails_support_document (EvSidebarPage *sidebar_page,
81 EvDocument *document);
82 static void ev_sidebar_thumbnails_page_iface_init (EvSidebarPageIface *iface);
83 static void ev_sidebar_thumbnails_set_document (EvSidebarPage *sidebar_page,
84 EvDocument *document);
85 static const gchar* ev_sidebar_thumbnails_get_label (EvSidebarPage *sidebar_page);
86 static void thumbnail_job_completed_callback (EvJobThumbnail *job,
87 EvSidebarThumbnails *sidebar_thumbnails);
88 static void adjustment_changed_cb (EvSidebarThumbnails *sidebar_thumbnails);
90 G_DEFINE_TYPE_EXTENDED (EvSidebarThumbnails,
91 ev_sidebar_thumbnails,
94 G_IMPLEMENT_INTERFACE (EV_TYPE_SIDEBAR_PAGE,
95 ev_sidebar_thumbnails_page_iface_init))
97 #define EV_SIDEBAR_THUMBNAILS_GET_PRIVATE(object) \
98 (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR_THUMBNAILS, EvSidebarThumbnailsPrivate));
102 ev_sidebar_thumbnails_dispose (GObject *object)
104 EvSidebarThumbnails *sidebar_thumbnails = EV_SIDEBAR_THUMBNAILS (object);
106 if (sidebar_thumbnails->priv->loading_icon) {
107 g_object_unref (sidebar_thumbnails->priv->loading_icon);
108 sidebar_thumbnails->priv->loading_icon = NULL;
111 if (sidebar_thumbnails->priv->list_store) {
112 ev_sidebar_thumbnails_clear_model (sidebar_thumbnails);
113 g_object_unref (sidebar_thumbnails->priv->list_store);
114 sidebar_thumbnails->priv->list_store = NULL;
117 G_OBJECT_CLASS (ev_sidebar_thumbnails_parent_class)->dispose (object);
121 ev_sidebar_thumbnails_get_property (GObject *object,
126 EvSidebarThumbnails *sidebar = EV_SIDEBAR_THUMBNAILS (object);
130 if (sidebar->priv->tree_view)
131 g_value_set_object (value, sidebar->priv->tree_view);
133 g_value_set_object (value, sidebar->priv->icon_view);
136 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
142 ev_sidebar_thumbnails_map (GtkWidget *widget)
144 EvSidebarThumbnails *sidebar;
146 sidebar = EV_SIDEBAR_THUMBNAILS (widget);
148 GTK_WIDGET_CLASS (ev_sidebar_thumbnails_parent_class)->map (widget);
150 adjustment_changed_cb (sidebar);
154 ev_sidebar_thumbnails_class_init (EvSidebarThumbnailsClass *ev_sidebar_thumbnails_class)
156 GObjectClass *g_object_class;
157 GtkObjectClass *gtk_object_class;
158 GtkWidgetClass *widget_class;
160 g_object_class = G_OBJECT_CLASS (ev_sidebar_thumbnails_class);
161 gtk_object_class = GTK_OBJECT_CLASS (ev_sidebar_thumbnails_class);
162 widget_class = GTK_WIDGET_CLASS (ev_sidebar_thumbnails_class);
164 g_object_class->dispose = ev_sidebar_thumbnails_dispose;
165 g_object_class->get_property = ev_sidebar_thumbnails_get_property;
166 widget_class->map = ev_sidebar_thumbnails_map;
168 g_object_class_override_property (g_object_class,
172 g_type_class_add_private (g_object_class, sizeof (EvSidebarThumbnailsPrivate));
176 ev_sidebar_thumbnails_new (void)
178 GtkWidget *ev_sidebar_thumbnails;
180 ev_sidebar_thumbnails = g_object_new (EV_TYPE_SIDEBAR_THUMBNAILS, NULL);
182 return ev_sidebar_thumbnails;
186 clear_range (EvSidebarThumbnails *sidebar_thumbnails,
190 EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
195 g_assert (start_page <= end_page);
197 path = gtk_tree_path_new_from_indices (start_page, -1);
198 for (result = gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->list_store), &iter, path);
199 result && start_page <= end_page;
200 result = gtk_tree_model_iter_next (GTK_TREE_MODEL (priv->list_store), &iter), start_page ++) {
203 gtk_tree_model_get (GTK_TREE_MODEL (priv->list_store),
209 g_signal_handlers_disconnect_by_func (job, thumbnail_job_completed_callback, sidebar_thumbnails);
210 ev_job_queue_remove_job (EV_JOB (job));
211 g_object_unref (job);
214 gtk_list_store_set (priv->list_store, &iter,
216 COLUMN_THUMBNAIL_SET, FALSE,
217 COLUMN_PIXBUF, priv->loading_icon,
220 gtk_tree_path_free (path);
224 add_range (EvSidebarThumbnails *sidebar_thumbnails,
228 EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
232 gint page = start_page;
234 g_assert (start_page <= end_page);
236 path = gtk_tree_path_new_from_indices (start_page, -1);
237 for (result = gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->list_store), &iter, path);
238 result && page <= end_page;
239 result = gtk_tree_model_iter_next (GTK_TREE_MODEL (priv->list_store), &iter), page ++) {
241 gboolean thumbnail_set;
243 gtk_tree_model_get (GTK_TREE_MODEL (priv->list_store), &iter,
245 COLUMN_THUMBNAIL_SET, &thumbnail_set,
248 if (job == NULL && !thumbnail_set) {
249 /* FIXME: Need rotation */
250 job = (EvJobThumbnail *)ev_job_thumbnail_new (priv->document, page, priv->rotation, THUMBNAIL_WIDTH);
251 ev_job_queue_add_job (EV_JOB (job), EV_JOB_PRIORITY_HIGH);
252 g_object_set_data_full (G_OBJECT (job), "tree_iter",
253 gtk_tree_iter_copy (&iter),
254 (GDestroyNotify) gtk_tree_iter_free);
255 g_signal_connect (job, "finished",
256 G_CALLBACK (thumbnail_job_completed_callback),
258 gtk_list_store_set (priv->list_store, &iter,
261 /* The queue and the list own a ref to the job now */
262 g_object_unref (job);
264 g_object_unref (job);
267 gtk_tree_path_free (path);
270 /* This modifies start */
272 update_visible_range (EvSidebarThumbnails *sidebar_thumbnails,
276 EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
277 int old_start_page, old_end_page;
279 old_start_page = priv->start_page;
280 old_end_page = priv->end_page;
282 if (start_page == old_start_page &&
283 end_page == old_end_page)
286 /* Clear the areas we no longer display */
287 if (old_start_page < start_page)
288 clear_range (sidebar_thumbnails, old_start_page, MIN (start_page - 1, old_end_page));
290 if (old_end_page > end_page)
291 clear_range (sidebar_thumbnails, MAX (end_page + 1, old_start_page), old_end_page);
293 add_range (sidebar_thumbnails, start_page, end_page);
295 priv->start_page = start_page;
296 priv->end_page = end_page;
300 adjustment_changed_cb (EvSidebarThumbnails *sidebar_thumbnails)
302 EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
303 GtkTreePath *path = NULL;
304 GtkTreePath *path2 = NULL;
308 /* Widget is not currently visible */
309 if (!GTK_WIDGET_MAPPED (sidebar_thumbnails))
312 if (priv->tree_view) {
313 if (! GTK_WIDGET_REALIZED (priv->tree_view))
316 gtk_tree_view_tree_to_widget_coords (GTK_TREE_VIEW (priv->tree_view),
317 0, (int) priv->vadjustment->value,
319 gtk_tree_view_tree_to_widget_coords (GTK_TREE_VIEW (priv->tree_view),
320 0, (int) (priv->vadjustment->value + priv->vadjustment->page_size),
322 gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (priv->tree_view),
325 gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (priv->tree_view),
328 } else if (priv->icon_view) {
329 if (! GTK_WIDGET_REALIZED (priv->icon_view))
331 if (! gtk_icon_view_get_visible_range (GTK_ICON_VIEW (priv->icon_view), &path, &path2))
338 path = gtk_tree_path_new_first ();
340 path2 = gtk_tree_path_new_from_indices (priv->n_pages,
342 update_visible_range (sidebar_thumbnails,
343 gtk_tree_path_get_indices (path)[0],
344 gtk_tree_path_get_indices (path2)[0]);
346 gtk_tree_path_free (path);
347 gtk_tree_path_free (path2);
351 ev_sidebar_thumbnails_fill_model (EvSidebarThumbnails *sidebar_thumbnails)
353 EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
357 for (i = 0; i < sidebar_thumbnails->priv->n_pages; i++) {
361 page_label = ev_page_cache_get_page_label (priv->page_cache, i);
362 page_string = g_markup_printf_escaped ("<i>%s</i>", page_label);
364 gtk_list_store_append (priv->list_store, &iter);
365 gtk_list_store_set (priv->list_store, &iter,
366 COLUMN_PAGE_STRING, page_string,
367 COLUMN_PIXBUF, priv->loading_icon,
368 COLUMN_THUMBNAIL_SET, FALSE,
371 g_free (page_string);
377 ev_sidebar_thumbnails_set_loading_icon (EvSidebarThumbnails *sidebar_thumbnails)
379 gint width = THUMBNAIL_WIDTH;
380 gint height = THUMBNAIL_WIDTH;
382 if (sidebar_thumbnails->priv->loading_icon)
383 g_object_unref (sidebar_thumbnails->priv->loading_icon);
385 if (sidebar_thumbnails->priv->document) {
386 /* We get the dimensions of the first doc so that we can make a blank
388 ev_document_doc_mutex_lock ();
389 ev_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (sidebar_thumbnails->priv->document),
390 0, THUMBNAIL_WIDTH, &width, &height);
391 ev_document_doc_mutex_unlock ();
392 sidebar_thumbnails->priv->loading_icon =
393 ev_document_misc_get_thumbnail_frame (width, height, sidebar_thumbnails->priv->rotation, NULL);
395 sidebar_thumbnails->priv->loading_icon = NULL;
400 ev_sidebar_thumbnails_refresh (EvSidebarThumbnails *sidebar_thumbnails,
403 sidebar_thumbnails->priv->rotation = rotation;
404 ev_sidebar_thumbnails_set_loading_icon (sidebar_thumbnails);
406 if (sidebar_thumbnails->priv->document == NULL)
409 ev_sidebar_thumbnails_clear_model (sidebar_thumbnails);
410 ev_sidebar_thumbnails_fill_model (sidebar_thumbnails);
412 /* Trigger a redraw */
413 sidebar_thumbnails->priv->start_page = 0;
414 sidebar_thumbnails->priv->end_page = 0;
415 adjustment_changed_cb (sidebar_thumbnails);
419 ev_sidebar_tree_selection_changed (GtkTreeSelection *selection,
420 EvSidebarThumbnails *ev_sidebar_thumbnails)
422 EvSidebarThumbnailsPrivate *priv = ev_sidebar_thumbnails->priv;
427 if (!gtk_tree_selection_get_selected (selection, NULL, &iter))
430 path = gtk_tree_model_get_path (GTK_TREE_MODEL (priv->list_store),
432 page = gtk_tree_path_get_indices (path)[0];
433 gtk_tree_path_free (path);
435 ev_page_cache_set_current_page (priv->page_cache, page);
439 ev_sidebar_icon_selection_changed (GtkIconView *icon_view,
440 EvSidebarThumbnails *ev_sidebar_thumbnails)
442 EvSidebarThumbnailsPrivate *priv = ev_sidebar_thumbnails->priv;
447 selected = gtk_icon_view_get_selected_items (icon_view);
448 if (selected == NULL)
451 /* We don't handle or expect multiple selection. */
452 g_assert (selected->next == NULL);
454 path = selected->data;
455 page = gtk_tree_path_get_indices (path)[0];
457 gtk_tree_path_free (path);
458 g_list_free (selected);
460 ev_page_cache_set_current_page (priv->page_cache, page);
464 ev_sidebar_init_tree_view (EvSidebarThumbnails *ev_sidebar_thumbnails)
466 EvSidebarThumbnailsPrivate *priv;
467 GtkTreeSelection *selection;
468 GtkCellRenderer *renderer;
470 priv = ev_sidebar_thumbnails->priv;
471 priv->tree_view = gtk_tree_view_new_with_model (GTK_TREE_MODEL (priv->list_store));
473 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
474 g_signal_connect (selection, "changed",
475 G_CALLBACK (ev_sidebar_tree_selection_changed), ev_sidebar_thumbnails);
476 gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE);
477 renderer = g_object_new (GTK_TYPE_CELL_RENDERER_PIXBUF,
481 gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (priv->tree_view), -1,
485 gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (priv->tree_view), -1,
486 NULL, gtk_cell_renderer_text_new (),
488 gtk_container_add (GTK_CONTAINER (priv->swindow), priv->tree_view);
489 gtk_widget_show (priv->tree_view);
493 ev_sidebar_init_icon_view (EvSidebarThumbnails *ev_sidebar_thumbnails)
495 EvSidebarThumbnailsPrivate *priv;
497 priv = ev_sidebar_thumbnails->priv;
499 priv->icon_view = gtk_icon_view_new_with_model (GTK_TREE_MODEL (priv->list_store));
500 gtk_icon_view_set_markup_column (GTK_ICON_VIEW (priv->icon_view), 0);
501 gtk_icon_view_set_pixbuf_column (GTK_ICON_VIEW (priv->icon_view), 1);
502 g_signal_connect (priv->icon_view, "selection-changed",
503 G_CALLBACK (ev_sidebar_icon_selection_changed), ev_sidebar_thumbnails);
505 gtk_container_add (GTK_CONTAINER (priv->swindow), priv->icon_view);
506 gtk_widget_show (priv->icon_view);
510 ev_sidebar_thumbnails_use_icon_view (EvSidebarThumbnails *sidebar_thumbnails)
512 EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
513 if (ev_page_cache_get_n_pages (priv->page_cache) > MAX_ICON_VIEW_PAGE_COUNT)
519 ev_sidebar_thumbnails_init (EvSidebarThumbnails *ev_sidebar_thumbnails)
521 EvSidebarThumbnailsPrivate *priv;
523 priv = ev_sidebar_thumbnails->priv = EV_SIDEBAR_THUMBNAILS_GET_PRIVATE (ev_sidebar_thumbnails);
525 priv->list_store = gtk_list_store_new (NUM_COLUMNS,
529 EV_TYPE_JOB_THUMBNAIL);
531 priv->swindow = gtk_scrolled_window_new (NULL, NULL);
532 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->swindow),
533 GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
534 gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->swindow),
536 priv->vadjustment = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->swindow));
537 g_signal_connect_data (G_OBJECT (priv->vadjustment), "value-changed",
538 G_CALLBACK (adjustment_changed_cb),
539 ev_sidebar_thumbnails, NULL,
540 G_CONNECT_SWAPPED | G_CONNECT_AFTER);
541 g_signal_connect_swapped (G_OBJECT (priv->swindow), "size-allocate",
542 G_CALLBACK (adjustment_changed_cb),
543 ev_sidebar_thumbnails);
544 gtk_box_pack_start (GTK_BOX (ev_sidebar_thumbnails), priv->swindow, TRUE, TRUE, 0);
546 /* Put it all together */
547 gtk_widget_show_all (priv->swindow);
551 page_changed_cb (EvPageCache *page_cache,
553 EvSidebarThumbnails *sidebar)
555 GtkTreeView *tree_view;
558 path = gtk_tree_path_new_from_indices (page, -1);
560 if (sidebar->priv->tree_view) {
561 tree_view = GTK_TREE_VIEW (sidebar->priv->tree_view);
562 gtk_tree_view_set_cursor (tree_view, path, NULL, FALSE);
563 gtk_tree_view_scroll_to_cell (tree_view, path, NULL, FALSE, 0.0, 0.0);
564 } else if (sidebar->priv->icon_view) {
565 gtk_icon_view_select_path (GTK_ICON_VIEW (sidebar->priv->icon_view), path);
566 gtk_icon_view_set_cursor (GTK_ICON_VIEW (sidebar->priv->icon_view), path, NULL, FALSE);
569 gtk_tree_path_free (path);
573 thumbnail_job_completed_callback (EvJobThumbnail *job,
574 EvSidebarThumbnails *sidebar_thumbnails)
576 EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
579 iter = (GtkTreeIter *) g_object_get_data (G_OBJECT (job), "tree_iter");
580 gtk_list_store_set (priv->list_store,
582 COLUMN_PIXBUF, job->thumbnail,
583 COLUMN_THUMBNAIL_SET, TRUE,
589 ev_sidebar_thumbnails_set_document (EvSidebarPage *sidebar_page,
590 EvDocument *document)
592 EvSidebarThumbnails *sidebar_thumbnails = EV_SIDEBAR_THUMBNAILS (sidebar_page);
594 EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
596 g_return_if_fail (EV_IS_DOCUMENT_THUMBNAILS (document));
598 priv->page_cache = ev_page_cache_get (document);
599 priv->document = document;
600 priv->n_pages = ev_page_cache_get_n_pages (priv->page_cache);
602 ev_sidebar_thumbnails_set_loading_icon (sidebar_thumbnails);
604 ev_sidebar_thumbnails_clear_model (sidebar_thumbnails);
605 ev_sidebar_thumbnails_fill_model (sidebar_thumbnails);
607 /* Create the view widget, and remove the old one, if needed */
608 if (ev_sidebar_thumbnails_use_icon_view (sidebar_thumbnails)) {
609 if (priv->tree_view) {
610 gtk_container_remove (GTK_CONTAINER (priv->swindow), priv->tree_view);
611 priv->tree_view = NULL;
614 if (! priv->icon_view) {
615 ev_sidebar_init_icon_view (sidebar_thumbnails);
616 g_object_notify (G_OBJECT (sidebar_thumbnails), "main_widget");
618 gtk_widget_queue_resize (priv->icon_view);
621 if (priv->icon_view) {
622 gtk_container_remove (GTK_CONTAINER (priv->swindow), priv->icon_view);
623 priv->icon_view = NULL;
626 if (! priv->tree_view) {
627 ev_sidebar_init_tree_view (sidebar_thumbnails);
628 g_object_notify (G_OBJECT (sidebar_thumbnails), "main_widget");
632 /* Connect to the signal and trigger a fake callback */
633 g_signal_connect (priv->page_cache, "page-changed", G_CALLBACK (page_changed_cb), sidebar_thumbnails);
634 sidebar_thumbnails->priv->start_page = 0;
635 sidebar_thumbnails->priv->end_page = 0;
636 adjustment_changed_cb (sidebar_thumbnails);
640 ev_sidebar_thumbnails_clear_job (GtkTreeModel *model,
647 gtk_tree_model_get (model, iter, COLUMN_JOB, &job, -1);
650 ev_job_queue_remove_job (job);
651 g_signal_handlers_disconnect_by_func (job, thumbnail_job_completed_callback, data);
652 g_object_unref (job);
659 ev_sidebar_thumbnails_clear_model (EvSidebarThumbnails *sidebar_thumbnails)
661 EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
663 gtk_tree_model_foreach (GTK_TREE_MODEL (priv->list_store), ev_sidebar_thumbnails_clear_job, sidebar_thumbnails);
664 gtk_list_store_clear (priv->list_store);
668 ev_sidebar_thumbnails_support_document (EvSidebarPage *sidebar_page,
669 EvDocument *document)
671 return (EV_IS_DOCUMENT_THUMBNAILS (document) &&
672 (ev_document_get_n_pages (document) > 1));
676 ev_sidebar_thumbnails_get_label (EvSidebarPage *sidebar_page)
678 return _("Thumbnails");
682 ev_sidebar_thumbnails_page_iface_init (EvSidebarPageIface *iface)
684 iface->support_document = ev_sidebar_thumbnails_support_document;
685 iface->set_document = ev_sidebar_thumbnails_set_document;
686 iface->get_label = ev_sidebar_thumbnails_get_label;