1 /* this file is part of evince, a gnome document viewer
3 * Copyright (C) 2004 Red Hat, Inc.
6 * Jonathan Blandford <jrb@alum.mit.edu>
8 * Evince is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * Evince is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
30 #include "ev-sidebar-links.h"
31 #include "ev-document-links.h"
32 #include "ev-window.h"
34 /* Amount of time we devote to each iteration of the idle, in microseconds */
35 #define IDLE_WORK_LENGTH 5000
38 EvDocumentLinksIter *links_iter;
39 GtkTreeIter *tree_iter;
42 struct _EvSidebarLinksPrivate {
45 EvDocument *current_document;
52 LINKS_COLUMN_PAGE_NUM,
53 LINKS_COLUMN_PAGE_VALID,
55 LINKS_COLUMN_NUM_COLUMNS
58 static void links_page_num_func (GtkTreeViewColumn *tree_column,
59 GtkCellRenderer *cell,
60 GtkTreeModel *tree_model,
64 G_DEFINE_TYPE (EvSidebarLinks, ev_sidebar_links, GTK_TYPE_VBOX)
66 #define EV_SIDEBAR_LINKS_GET_PRIVATE(object) \
67 (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR_LINKS, EvSidebarLinksPrivate))
71 ev_sidebar_links_destroy (GtkObject *object)
73 EvSidebarLinks *ev_sidebar_links = (EvSidebarLinks *) object;
75 g_print ("ev_sidebar_links_destroy!\n");
76 ev_sidebar_links_clear_document (ev_sidebar_links);
80 ev_sidebar_links_class_init (EvSidebarLinksClass *ev_sidebar_links_class)
82 GObjectClass *g_object_class;
83 GtkObjectClass *gtk_object_class;
85 g_object_class = G_OBJECT_CLASS (ev_sidebar_links_class);
86 gtk_object_class = GTK_OBJECT_CLASS (ev_sidebar_links_class);
88 gtk_object_class->destroy = ev_sidebar_links_destroy;
90 g_type_class_add_private (g_object_class, sizeof (EvSidebarLinksPrivate));
94 selection_changed_cb (GtkTreeSelection *selection,
95 EvSidebarLinks *ev_sidebar_links)
101 g_return_if_fail (EV_IS_SIDEBAR_LINKS (ev_sidebar_links));
103 document = EV_DOCUMENT (ev_sidebar_links->priv->current_document);
104 g_return_if_fail (ev_sidebar_links->priv->current_document != NULL);
106 if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
109 GValue value = {0, };
111 gtk_tree_model_get_value (model, &iter,
112 LINKS_COLUMN_LINK, &value);
114 link = EV_LINK (g_value_get_object (&value));
115 g_return_if_fail (link != NULL);
117 window = gtk_widget_get_ancestor (GTK_WIDGET (ev_sidebar_links),
120 ev_window_open_link (EV_WINDOW (window), link);
126 ev_sidebar_links_construct (EvSidebarLinks *ev_sidebar_links)
128 EvSidebarLinksPrivate *priv;
130 GtkTreeViewColumn *column;
131 GtkCellRenderer *renderer;
132 GtkTreeSelection *selection;
134 priv = ev_sidebar_links->priv;
135 priv->model = (GtkTreeModel *) gtk_tree_store_new (LINKS_COLUMN_NUM_COLUMNS,
141 swindow = gtk_scrolled_window_new (NULL, NULL);
143 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
144 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
145 gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (swindow),
148 /* Create tree view */
149 priv->tree_view = gtk_tree_view_new_with_model (priv->model);
150 g_object_unref (priv->model);
151 gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE);
152 gtk_container_add (GTK_CONTAINER (swindow), priv->tree_view);
153 gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (priv->tree_view), TRUE);
155 gtk_box_pack_start (GTK_BOX (ev_sidebar_links), swindow, TRUE, TRUE, 0);
156 gtk_widget_show_all (GTK_WIDGET (ev_sidebar_links));
158 column = gtk_tree_view_column_new ();
159 gtk_tree_view_column_set_expand (GTK_TREE_VIEW_COLUMN (column), TRUE);
160 gtk_tree_view_append_column (GTK_TREE_VIEW (priv->tree_view), column);
162 renderer = (GtkCellRenderer*)
163 g_object_new (GTK_TYPE_CELL_RENDERER_TEXT,
164 "ellipsize", PANGO_ELLIPSIZE_END,
166 gtk_tree_view_column_pack_start (GTK_TREE_VIEW_COLUMN (column), renderer, TRUE);
167 gtk_tree_view_column_set_attributes (GTK_TREE_VIEW_COLUMN (column), renderer,
168 "markup", LINKS_COLUMN_MARKUP,
171 renderer = gtk_cell_renderer_text_new ();
172 gtk_tree_view_column_pack_end (GTK_TREE_VIEW_COLUMN (column), renderer, FALSE);
173 gtk_tree_view_column_set_cell_data_func (GTK_TREE_VIEW_COLUMN (column), renderer,
174 (GtkTreeCellDataFunc) links_page_num_func,
178 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
179 g_signal_connect (selection, "changed",
180 G_CALLBACK (selection_changed_cb),
185 ev_sidebar_links_init (EvSidebarLinks *ev_sidebar_links)
187 ev_sidebar_links->priv = EV_SIDEBAR_LINKS_GET_PRIVATE (ev_sidebar_links);
189 ev_sidebar_links_construct (ev_sidebar_links);
193 links_page_num_func (GtkTreeViewColumn *tree_column,
194 GtkCellRenderer *cell,
195 GtkTreeModel *tree_model,
202 gtk_tree_model_get (tree_model, iter,
203 LINKS_COLUMN_PAGE_NUM, &page_num,
204 LINKS_COLUMN_PAGE_VALID, &page_valid,
208 gchar *markup = g_strdup_printf ("<i>%d</i>", page_num);
221 /* Public Functions */
224 ev_sidebar_links_new (void)
226 GtkWidget *ev_sidebar_links;
228 ev_sidebar_links = g_object_new (EV_TYPE_SIDEBAR_LINKS, NULL);
230 return ev_sidebar_links;
234 stack_data_free (IdleStackData *stack_data,
235 EvDocumentLinks *document_links)
237 g_assert (stack_data);
239 if (stack_data->tree_iter)
240 gtk_tree_iter_free (stack_data->tree_iter);
241 if (stack_data->links_iter)
242 ev_document_links_free_iter (document_links, stack_data->links_iter);
247 do_one_iteration (EvSidebarLinks *ev_sidebar_links)
249 EvSidebarLinksPrivate *priv = ev_sidebar_links->priv;
251 IdleStackData *stack_data;
252 GtkTreeIter tree_iter;
253 EvDocumentLinksIter *child_iter;
256 g_assert (priv->idle_stack);
258 stack_data = (IdleStackData *) priv->idle_stack->data;
260 link = ev_document_links_get_link
261 (EV_DOCUMENT_LINKS (priv->current_document),
262 stack_data->links_iter);
264 g_warning ("mismatch in model. No values available at current level.\n");
268 page = ev_link_get_page (link);
269 gtk_tree_store_append (GTK_TREE_STORE (priv->model), &tree_iter, stack_data->tree_iter);
270 gtk_tree_store_set (GTK_TREE_STORE (priv->model), &tree_iter,
271 LINKS_COLUMN_MARKUP, ev_link_get_title (link),
272 LINKS_COLUMN_PAGE_NUM, page,
273 /* FIXME: Handle links for real. */
274 LINKS_COLUMN_PAGE_VALID, (page >= 0),
275 LINKS_COLUMN_LINK, link,
277 g_object_unref (link);
279 child_iter = ev_document_links_get_child (EV_DOCUMENT_LINKS (priv->current_document),
280 stack_data->links_iter);
282 IdleStackData *child_stack_data;
284 child_stack_data = g_new0 (IdleStackData, 1);
285 child_stack_data->tree_iter = gtk_tree_iter_copy (&tree_iter);
286 child_stack_data->links_iter = child_iter;
287 priv->idle_stack = g_list_prepend (priv->idle_stack, child_stack_data);
292 /* We don't have children, so we need to walk to the next node */
294 if (ev_document_links_next (EV_DOCUMENT_LINKS (priv->current_document),
295 stack_data->links_iter))
298 /* We're done with this level. Pop it off the idle stack and go
299 * to the next level */
300 stack_data_free (stack_data, EV_DOCUMENT_LINKS (priv->current_document));
301 priv->idle_stack = g_list_delete_link (priv->idle_stack, priv->idle_stack);
302 if (priv->idle_stack == NULL)
304 stack_data = priv->idle_stack->data;
309 populate_links_idle (gpointer data)
313 gulong microseconds = 0;
315 EvSidebarLinks *ev_sidebar_links = (EvSidebarLinks *)data;
316 EvSidebarLinksPrivate *priv = ev_sidebar_links->priv;
318 if (priv->idle_stack == NULL) {
323 /* The amount of time that reading the next bookmark takes is wildly
324 * inconsistent, so we constrain it to IDLE_WORK_LENGTH microseconds per
326 timer = g_timer_new ();
328 g_timer_start (timer);
329 while (do_one_iteration (ev_sidebar_links)) {
331 g_timer_elapsed (timer, µseconds);
332 if (microseconds > IDLE_WORK_LENGTH)
335 g_timer_destroy (timer);
337 g_print ("%d rows done this idle in %d\n", i, (int)microseconds);
343 ev_sidebar_links_clear_document (EvSidebarLinks *sidebar_links)
345 EvSidebarLinksPrivate *priv;
347 g_return_if_fail (EV_IS_SIDEBAR_LINKS (sidebar_links));
349 priv = sidebar_links->priv;
350 if (priv->current_document) {
351 g_object_unref (priv->current_document);
352 priv->current_document = NULL;
354 gtk_tree_store_clear (GTK_TREE_STORE (priv->model));
357 if (priv->idle_id != 0) {
358 g_source_remove (priv->idle_id);
361 g_list_foreach (priv->idle_stack, (GFunc) stack_data_free, priv->current_document);
362 g_list_free (priv->idle_stack);
363 priv->idle_stack = NULL;
368 ev_sidebar_links_set_document (EvSidebarLinks *sidebar_links,
369 EvDocument *document)
371 EvSidebarLinksPrivate *priv;
372 EvDocumentLinksIter *links_iter;
374 g_return_if_fail (EV_IS_SIDEBAR_LINKS (sidebar_links));
375 g_return_if_fail (EV_IS_DOCUMENT (document));
377 priv = sidebar_links->priv;
379 g_object_ref (document);
380 ev_sidebar_links_clear_document (sidebar_links);
382 priv->current_document = document;
383 links_iter = ev_document_links_begin_read (EV_DOCUMENT_LINKS (document));
385 IdleStackData *stack_data;
387 stack_data = g_new0 (IdleStackData, 1);
388 stack_data->links_iter = links_iter;
389 stack_data->tree_iter = NULL;
391 priv->idle_stack = g_list_prepend (priv->idle_stack, stack_data);
392 priv->idle_id = g_idle_add (populate_links_idle, sidebar_links);