1 files changed, 974 insertions, 0 deletions
diff --git a/shell/ev-sidebar-thumbnails.c b/shell/ev-sidebar-thumbnails.c
new file mode 100644
index 00000000..65fb3141
--- /dev/null
+++ b/shell/ev-sidebar-thumbnails.c
@@ -0,0 +1,974 @@
+/* this file is part of evince, a mate document viewer
+ *
+ * Copyright (C) 2004 Red Hat, Inc.
+ * Copyright (C) 2004, 2005 Anders Carlsson <[email protected]>
+ *
+ * Authors:
+ * Jonathan Blandford <[email protected]>
+ * Anders Carlsson <[email protected]>
+ *
+ * Evince is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Evince is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <string.h>
+
+#include <glib/gi18n.h>
+#include <gtk/gtk.h>
+
+#include "ev-document-misc.h"
+#include "ev-document-thumbnails.h"
+#include "ev-job-scheduler.h"
+#include "ev-sidebar-page.h"
+#include "ev-sidebar-thumbnails.h"
+#include "ev-utils.h"
+#include "ev-window.h"
+
+#define THUMBNAIL_WIDTH 100
+
+/* The IconView doesn't scale nearly as well as the TreeView, so we arbitrarily
+ * limit its use */
+#define MAX_ICON_VIEW_PAGE_COUNT 1500
+
+typedef struct _EvThumbsSize
+{
+ gint width;
+ gint height;
+} EvThumbsSize;
+
+typedef struct _EvThumbsSizeCache {
+ gboolean uniform;
+ gint uniform_width;
+ gint uniform_height;
+ EvThumbsSize *sizes;
+} EvThumbsSizeCache;
+
+struct _EvSidebarThumbnailsPrivate {
+ GtkWidget *swindow;
+ GtkWidget *icon_view;
+ GtkWidget *tree_view;
+ GtkAdjustment *vadjustment;
+ GtkListStore *list_store;
+ GHashTable *loading_icons;
+ EvDocument *document;
+ EvDocumentModel *model;
+ EvThumbsSizeCache *size_cache;
+
+ gint n_pages, pages_done;
+
+ int rotation;
+ gboolean inverted_colors;
+
+ /* Visible pages */
+ gint start_page, end_page;
+};
+
+enum {
+ COLUMN_PAGE_STRING,
+ COLUMN_PIXBUF,
+ COLUMN_THUMBNAIL_SET,
+ COLUMN_JOB,
+ NUM_COLUMNS
+};
+
+enum {
+ PROP_0,
+ PROP_WIDGET,
+};
+
+static void ev_sidebar_thumbnails_clear_model (EvSidebarThumbnails *sidebar);
+static gboolean ev_sidebar_thumbnails_support_document (EvSidebarPage *sidebar_page,
+ EvDocument *document);
+static void ev_sidebar_thumbnails_page_iface_init (EvSidebarPageInterface *iface);
+static const gchar* ev_sidebar_thumbnails_get_label (EvSidebarPage *sidebar_page);
+static void thumbnail_job_completed_callback (EvJobThumbnail *job,
+ EvSidebarThumbnails *sidebar_thumbnails);
+static void adjustment_changed_cb (EvSidebarThumbnails *sidebar_thumbnails);
+
+G_DEFINE_TYPE_EXTENDED (EvSidebarThumbnails, 
+ ev_sidebar_thumbnails, 
+ GTK_TYPE_VBOX,
+ 0, 
+ G_IMPLEMENT_INTERFACE (EV_TYPE_SIDEBAR_PAGE, 
+ ev_sidebar_thumbnails_page_iface_init))
+
+#define EV_SIDEBAR_THUMBNAILS_GET_PRIVATE(object) \
+ (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR_THUMBNAILS, EvSidebarThumbnailsPrivate));
+
+/* Thumbnails dimensions cache */
+#define EV_THUMBNAILS_SIZE_CACHE_KEY "ev-thumbnails-size-cache"
+
+static EvThumbsSizeCache *
+ev_thumbnails_size_cache_new (EvDocument *document)
+{
+ EvThumbsSizeCache *cache;
+ EvRenderContext *rc = NULL;
+ gint i, n_pages;
+ EvThumbsSize *thumb_size;
+
+ cache = g_new0 (EvThumbsSizeCache, 1);
+
+ n_pages = ev_document_get_n_pages (document);
+
+ /* Assume all pages are the same size until proven otherwise */
+ cache->uniform = TRUE;
+
+ for (i = 0; i < n_pages; i++) {
+ EvPage *page;
+ gdouble page_width, page_height;
+ gint thumb_width = 0;
+ gint thumb_height = 0;
+
+ page = ev_document_get_page (document, i);
+
+ ev_document_get_page_size (document, i, &page_width, &page_height);
+
+ if (!rc) {
+ rc = ev_render_context_new (page, 0, (gdouble)THUMBNAIL_WIDTH / page_width);
+ } else {
+ ev_render_context_set_page (rc, page);
+ ev_render_context_set_scale (rc, (gdouble)THUMBNAIL_WIDTH / page_width);
+ }
+
+ ev_document_thumbnails_get_dimensions (EV_DOCUMENT_THUMBNAILS (document),
+ rc, &thumb_width, &thumb_height);
+
+ if (i == 0) {
+ cache->uniform_width = thumb_width;
+ cache->uniform_height = thumb_height;
+ } else if (cache->uniform &&
+ (cache->uniform_width != thumb_width ||
+ cache->uniform_height != thumb_height)) {
+ /* It's a different thumbnail size. Backfill the array. */
+ int j;
+
+ cache->sizes = g_new0 (EvThumbsSize, n_pages);
+
+ for (j = 0; j < i; j++) {
+ thumb_size = &(cache->sizes[j]);
+ thumb_size->width = cache->uniform_width;
+ thumb_size->height = cache->uniform_height;
+ }
+ cache->uniform = FALSE;
+ }
+
+ if (! cache->uniform) {
+ thumb_size = &(cache->sizes[i]);
+
+ thumb_size->width = thumb_width;
+ thumb_size->height = thumb_height;
+ }
+
+ g_object_unref (page);
+ }
+
+ if (rc) {
+ g_object_unref (rc);
+ }
+
+ return cache;
+}
+
+static void
+ev_thumbnails_size_cache_get_size (EvThumbsSizeCache *cache,
+ gint page,
+ gint rotation,
+ gint *width,
+ gint *height)
+{
+ gint w, h;
+
+ if (cache->uniform) {
+ w = cache->uniform_width;
+ h = cache->uniform_height;
+ } else {
+ EvThumbsSize *thumb_size;
+
+ thumb_size = &(cache->sizes[page]);
+
+ w = thumb_size->width;
+ h = thumb_size->height;
+ }
+
+ if (rotation == 0 || rotation == 180) {
+ if (width) *width = w;
+ if (height) *height = h;
+ } else {
+ if (width) *width = h;
+ if (height) *height = w;
+ }
+}
+
+static void
+ev_thumbnails_size_cache_free (EvThumbsSizeCache *cache)
+{
+ if (cache->sizes) {
+ g_free (cache->sizes);
+ cache->sizes = NULL;
+ }
+
+ g_free (cache);
+}
+
+static EvThumbsSizeCache *
+ev_thumbnails_size_cache_get (EvDocument *document)
+{
+ EvThumbsSizeCache *cache;
+
+ cache = g_object_get_data (G_OBJECT (document), EV_THUMBNAILS_SIZE_CACHE_KEY);
+ if (!cache) {
+ cache = ev_thumbnails_size_cache_new (document);
+ g_object_set_data_full (G_OBJECT (document),
+ EV_THUMBNAILS_SIZE_CACHE_KEY,
+ cache,
+ (GDestroyNotify)ev_thumbnails_size_cache_free);
+ }
+
+ return cache;
+}
+
+
+static void
+ev_sidebar_thumbnails_dispose (GObject *object)
+{
+ EvSidebarThumbnails *sidebar_thumbnails = EV_SIDEBAR_THUMBNAILS (object);
+ 
+ if (sidebar_thumbnails->priv->loading_icons) {
+ g_hash_table_destroy (sidebar_thumbnails->priv->loading_icons);
+ sidebar_thumbnails->priv->loading_icons = NULL;
+ }
+ 
+ if (sidebar_thumbnails->priv->list_store) {
+ ev_sidebar_thumbnails_clear_model (sidebar_thumbnails);
+ g_object_unref (sidebar_thumbnails->priv->list_store);
+ sidebar_thumbnails->priv->list_store = NULL;
+ }
+
+ G_OBJECT_CLASS (ev_sidebar_thumbnails_parent_class)->dispose (object);
+}
+
+static void
+ev_sidebar_thumbnails_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ EvSidebarThumbnails *sidebar = EV_SIDEBAR_THUMBNAILS (object);
+
+ switch (prop_id) {
+ case PROP_WIDGET:
+ if (sidebar->priv->tree_view)
+ g_value_set_object (value, sidebar->priv->tree_view);
+ else
+ g_value_set_object (value, sidebar->priv->icon_view);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+ev_sidebar_thumbnails_map (GtkWidget *widget)
+{
+ EvSidebarThumbnails *sidebar;
+
+ sidebar = EV_SIDEBAR_THUMBNAILS (widget);
+
+ GTK_WIDGET_CLASS (ev_sidebar_thumbnails_parent_class)->map (widget);
+ 
+ adjustment_changed_cb (sidebar);
+}
+
+static void
+ev_sidebar_thumbnails_class_init (EvSidebarThumbnailsClass *ev_sidebar_thumbnails_class)
+{
+ GObjectClass *g_object_class;
+ GtkObjectClass *gtk_object_class;
+ GtkWidgetClass *widget_class;
+
+ g_object_class = G_OBJECT_CLASS (ev_sidebar_thumbnails_class);
+ gtk_object_class = GTK_OBJECT_CLASS (ev_sidebar_thumbnails_class);
+ widget_class = GTK_WIDGET_CLASS (ev_sidebar_thumbnails_class);
+
+ g_object_class->dispose = ev_sidebar_thumbnails_dispose;
+ g_object_class->get_property = ev_sidebar_thumbnails_get_property;
+ widget_class->map = ev_sidebar_thumbnails_map;
+
+ g_object_class_override_property (g_object_class,
+ PROP_WIDGET,
+ "main-widget");
+
+ g_type_class_add_private (g_object_class, sizeof (EvSidebarThumbnailsPrivate));
+}
+
+GtkWidget *
+ev_sidebar_thumbnails_new (void)
+{
+ GtkWidget *ev_sidebar_thumbnails;
+
+ ev_sidebar_thumbnails = g_object_new (EV_TYPE_SIDEBAR_THUMBNAILS, NULL);
+
+ return ev_sidebar_thumbnails;
+}
+
+static GdkPixbuf *
+ev_sidebar_thumbnails_get_loading_icon (EvSidebarThumbnails *sidebar_thumbnails,
+ gint width,
+ gint height)
+{
+ EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
+ GdkPixbuf *icon;
+ gchar *key;
+
+ key = g_strdup_printf ("%dx%d", width, height);
+ icon = g_hash_table_lookup (priv->loading_icons, key);
+ if (!icon) {
+ gboolean inverted_colors;
+
+ inverted_colors = ev_document_model_get_inverted_colors (priv->model);
+ icon = ev_document_misc_get_loading_thumbnail (width, height, inverted_colors);
+ g_hash_table_insert (priv->loading_icons, key, icon);
+ } else {
+ g_free (key);
+ }
+ 
+ return icon;
+}
+
+static void
+clear_range (EvSidebarThumbnails *sidebar_thumbnails,
+ gint start_page,
+ gint end_page)
+{
+ EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
+ GtkTreePath *path;
+ GtkTreeIter iter;
+ gboolean result;
+ gint prev_width = -1;
+ gint prev_height = -1;
+
+ g_assert (start_page <= end_page);
+
+ path = gtk_tree_path_new_from_indices (start_page, -1);
+ for (result = gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->list_store), &iter, path);
+ result && start_page <= end_page;
+ result = gtk_tree_model_iter_next (GTK_TREE_MODEL (priv->list_store), &iter), start_page ++) {
+ EvJobThumbnail *job;
+ GdkPixbuf *loading_icon = NULL;
+ gint width, height;
+
+ gtk_tree_model_get (GTK_TREE_MODEL (priv->list_store),
+ &iter,
+ COLUMN_JOB, &job,
+ -1);
+
+ if (job) {
+ g_signal_handlers_disconnect_by_func (job, thumbnail_job_completed_callback, sidebar_thumbnails);
+ ev_job_cancel (EV_JOB (job));
+ g_object_unref (job);
+ }
+
+ ev_thumbnails_size_cache_get_size (priv->size_cache, start_page,
+ priv->rotation,
+ &width, &height);
+ if (!loading_icon || (width != prev_width && height != prev_height)) {
+ loading_icon =
+ ev_sidebar_thumbnails_get_loading_icon (sidebar_thumbnails,
+ width, height);
+ }
+
+ prev_width = width;
+ prev_height = height;
+
+ gtk_list_store_set (priv->list_store, &iter,
+ COLUMN_JOB, NULL,
+ COLUMN_THUMBNAIL_SET, FALSE,
+ COLUMN_PIXBUF, loading_icon,
+ -1);
+ }
+ gtk_tree_path_free (path);
+}
+
+static gdouble
+get_scale_for_page (EvSidebarThumbnails *sidebar_thumbnails,
+ gint page)
+{
+ EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
+ gdouble width;
+
+ ev_document_get_page_size (priv->document, page, &width, NULL);
+
+ return (gdouble)THUMBNAIL_WIDTH / width;
+}
+
+static void
+add_range (EvSidebarThumbnails *sidebar_thumbnails,
+ gint start_page,
+ gint end_page)
+{
+ EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
+ GtkTreePath *path;
+ GtkTreeIter iter;
+ gboolean result;
+ gint page = start_page;
+
+ g_assert (start_page <= end_page);
+
+ path = gtk_tree_path_new_from_indices (start_page, -1);
+ for (result = gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->list_store), &iter, path);
+ result && page <= end_page;
+ result = gtk_tree_model_iter_next (GTK_TREE_MODEL (priv->list_store), &iter), page ++) {
+ EvJob *job;
+ gboolean thumbnail_set;
+
+ gtk_tree_model_get (GTK_TREE_MODEL (priv->list_store), &iter,
+ COLUMN_JOB, &job,
+ COLUMN_THUMBNAIL_SET, &thumbnail_set,
+ -1);
+
+ if (job == NULL && !thumbnail_set) {
+ job = ev_job_thumbnail_new (priv->document,
+ page, priv->rotation,
+ get_scale_for_page (sidebar_thumbnails, page));
+ ev_job_scheduler_push_job (EV_JOB (job), EV_JOB_PRIORITY_HIGH);
+ 
+ g_object_set_data_full (G_OBJECT (job), "tree_iter",
+ gtk_tree_iter_copy (&iter),
+ (GDestroyNotify) gtk_tree_iter_free);
+ g_signal_connect (job, "finished",
+ G_CALLBACK (thumbnail_job_completed_callback),
+ sidebar_thumbnails);
+ gtk_list_store_set (priv->list_store, &iter,
+ COLUMN_JOB, job,
+ -1);
+ 
+ /* The queue and the list own a ref to the job now */
+ g_object_unref (job);
+ } else if (job) {
+ g_object_unref (job);
+ }
+ }
+ gtk_tree_path_free (path);
+}
+
+/* This modifies start */
+static void
+update_visible_range (EvSidebarThumbnails *sidebar_thumbnails,
+ gint start_page,
+ gint end_page)
+{
+ EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
+ int old_start_page, old_end_page;
+
+ old_start_page = priv->start_page;
+ old_end_page = priv->end_page;
+
+ if (start_page == old_start_page &&
+ end_page == old_end_page)
+ return;
+
+ /* Clear the areas we no longer display */
+ if (old_start_page >= 0 && old_start_page < start_page)
+ clear_range (sidebar_thumbnails, old_start_page, MIN (start_page - 1, old_end_page));
+ 
+ if (old_end_page > 0 && old_end_page > end_page)
+ clear_range (sidebar_thumbnails, MAX (end_page + 1, old_start_page), old_end_page);
+
+ add_range (sidebar_thumbnails, start_page, end_page);
+ 
+ priv->start_page = start_page;
+ priv->end_page = end_page;
+}
+
+static void
+adjustment_changed_cb (EvSidebarThumbnails *sidebar_thumbnails)
+{
+ EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
+ GtkTreePath *path = NULL;
+ GtkTreePath *path2 = NULL;
+ gdouble page_size;
+ gdouble value;
+ gint wy1;
+ gint wy2;
+
+ /* Widget is not currently visible */
+ if (!gtk_widget_get_mapped (GTK_WIDGET (sidebar_thumbnails)))
+ return;
+
+ page_size = gtk_adjustment_get_page_size (priv->vadjustment);
+
+ if (page_size == 0)
+ return;
+
+ value = gtk_adjustment_get_value (priv->vadjustment);
+ 
+ if (priv->tree_view) {
+ if (! gtk_widget_get_realized (priv->tree_view))
+ return;
+
+ gtk_tree_view_convert_tree_to_bin_window_coords (GTK_TREE_VIEW (priv->tree_view),
+ 0, (int) value,
+ NULL, &wy1);
+ gtk_tree_view_convert_tree_to_bin_window_coords (GTK_TREE_VIEW (priv->tree_view),
+ 0, (int) (value + page_size),
+ NULL, &wy2);
+ gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (priv->tree_view),
+ 1, wy1 + 1, &path,
+ NULL, NULL, NULL);
+ gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (priv->tree_view),
+ 1, wy2 -1, &path2,
+ NULL, NULL, NULL);
+ } else if (priv->icon_view) {
+ if (! gtk_widget_get_realized (priv->icon_view))
+ return;
+ if (! gtk_icon_view_get_visible_range (GTK_ICON_VIEW (priv->icon_view), &path, &path2))
+ return;
+ } else {
+ return;
+ }
+
+ if (path && path2) {
+ update_visible_range (sidebar_thumbnails,
+ gtk_tree_path_get_indices (path)[0],
+ gtk_tree_path_get_indices (path2)[0]);
+ }
+
+ gtk_tree_path_free (path);
+ gtk_tree_path_free (path2);
+}
+
+static void
+ev_sidebar_thumbnails_fill_model (EvSidebarThumbnails *sidebar_thumbnails)
+{
+ EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
+ GtkTreeIter iter;
+ int i;
+ gint prev_width = -1;
+ gint prev_height = -1;
+
+ for (i = 0; i < sidebar_thumbnails->priv->n_pages; i++) {
+ gchar *page_label;
+ gchar *page_string;
+ GdkPixbuf *loading_icon = NULL;
+ gint width, height;
+
+ page_label = ev_document_get_page_label (priv->document, i);
+ page_string = g_markup_printf_escaped ("<i>%s</i>", page_label);
+ ev_thumbnails_size_cache_get_size (sidebar_thumbnails->priv->size_cache, i,
+ sidebar_thumbnails->priv->rotation,
+ &width, &height);
+ if (!loading_icon || (width != prev_width && height != prev_height)) {
+ loading_icon =
+ ev_sidebar_thumbnails_get_loading_icon (sidebar_thumbnails,
+ width, height);
+ }
+
+ prev_width = width;
+ prev_height = height;
+ 
+ gtk_list_store_append (priv->list_store, &iter);
+ gtk_list_store_set (priv->list_store, &iter,
+ COLUMN_PAGE_STRING, page_string,
+ COLUMN_PIXBUF, loading_icon,
+ COLUMN_THUMBNAIL_SET, FALSE,
+ -1);
+ g_free (page_label);
+ g_free (page_string);
+ }
+}
+
+static void
+ev_sidebar_tree_selection_changed (GtkTreeSelection *selection,
+ EvSidebarThumbnails *ev_sidebar_thumbnails)
+{
+ EvSidebarThumbnailsPrivate *priv = ev_sidebar_thumbnails->priv;
+ GtkTreePath *path;
+ GtkTreeIter iter;
+ int page;
+
+ if (!gtk_tree_selection_get_selected (selection, NULL, &iter))
+ return;
+
+ path = gtk_tree_model_get_path (GTK_TREE_MODEL (priv->list_store),
+ &iter);
+ page = gtk_tree_path_get_indices (path)[0];
+ gtk_tree_path_free (path);
+
+ ev_document_model_set_page (priv->model, page);
+}
+
+static void
+ev_sidebar_icon_selection_changed (GtkIconView *icon_view,
+ EvSidebarThumbnails *ev_sidebar_thumbnails)
+{
+ EvSidebarThumbnailsPrivate *priv = ev_sidebar_thumbnails->priv;
+ GtkTreePath *path;
+ GList *selected;
+ int page;
+
+ selected = gtk_icon_view_get_selected_items (icon_view);
+ if (selected == NULL)
+ return;
+
+ /* We don't handle or expect multiple selection. */
+ g_assert (selected->next == NULL);
+
+ path = selected->data;
+ page = gtk_tree_path_get_indices (path)[0];
+
+ gtk_tree_path_free (path);
+ g_list_free (selected);
+
+ ev_document_model_set_page (priv->model, page);
+}
+
+static void
+ev_sidebar_init_tree_view (EvSidebarThumbnails *ev_sidebar_thumbnails)
+{
+ EvSidebarThumbnailsPrivate *priv;
+ GtkTreeSelection *selection;
+ GtkCellRenderer *renderer;
+
+ priv = ev_sidebar_thumbnails->priv;
+ priv->tree_view = gtk_tree_view_new_with_model (GTK_TREE_MODEL (priv->list_store));
+
+ selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
+ g_signal_connect (selection, "changed",
+ G_CALLBACK (ev_sidebar_tree_selection_changed), ev_sidebar_thumbnails);
+ gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE);
+ renderer = g_object_new (GTK_TYPE_CELL_RENDERER_PIXBUF,
+ "xpad", 2,
+ "ypad", 2,
+ NULL);
+ gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (priv->tree_view), -1,
+ NULL, renderer,
+ "pixbuf", 1,
+ NULL);
+ gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (priv->tree_view), -1,
+ NULL, gtk_cell_renderer_text_new (),
+ "markup", 0, NULL);
+ gtk_container_add (GTK_CONTAINER (priv->swindow), priv->tree_view);
+ gtk_widget_show (priv->tree_view);
+}
+
+static void
+ev_sidebar_init_icon_view (EvSidebarThumbnails *ev_sidebar_thumbnails)
+{
+ EvSidebarThumbnailsPrivate *priv;
+
+ priv = ev_sidebar_thumbnails->priv;
+
+ priv->icon_view = gtk_icon_view_new_with_model (GTK_TREE_MODEL (priv->list_store));
+ gtk_icon_view_set_markup_column (GTK_ICON_VIEW (priv->icon_view), 0);
+ gtk_icon_view_set_pixbuf_column (GTK_ICON_VIEW (priv->icon_view), 1);
+ g_signal_connect (priv->icon_view, "selection-changed",
+ G_CALLBACK (ev_sidebar_icon_selection_changed), ev_sidebar_thumbnails);
+
+ gtk_container_add (GTK_CONTAINER (priv->swindow), priv->icon_view);
+ gtk_widget_show (priv->icon_view);
+}
+
+static gboolean
+ev_sidebar_thumbnails_use_icon_view (EvSidebarThumbnails *sidebar_thumbnails)
+{
+ EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
+
+ return (ev_document_get_n_pages (priv->document) <= MAX_ICON_VIEW_PAGE_COUNT);
+}
+
+static void
+ev_sidebar_thumbnails_init (EvSidebarThumbnails *ev_sidebar_thumbnails)
+{
+ EvSidebarThumbnailsPrivate *priv;
+
+ priv = ev_sidebar_thumbnails->priv = EV_SIDEBAR_THUMBNAILS_GET_PRIVATE (ev_sidebar_thumbnails);
+
+ priv->list_store = gtk_list_store_new (NUM_COLUMNS,
+ G_TYPE_STRING,
+ GDK_TYPE_PIXBUF,
+ G_TYPE_BOOLEAN,
+ EV_TYPE_JOB_THUMBNAIL);
+
+ priv->swindow = gtk_scrolled_window_new (NULL, NULL);
+ 
+ /* We actually don't want GTK_POLICY_AUTOMATIC for horizontal scrollbar here
+ * it's just a workaround for bug #449462
+ */
+ gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->swindow),
+ GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
+ gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->swindow),
+ GTK_SHADOW_IN);
+ priv->vadjustment = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->swindow));
+ g_signal_connect_data (priv->vadjustment, "value-changed",
+ G_CALLBACK (adjustment_changed_cb),
+ ev_sidebar_thumbnails, NULL,
+ G_CONNECT_SWAPPED | G_CONNECT_AFTER);
+ g_signal_connect_swapped (priv->swindow, "size-allocate",
+ G_CALLBACK (adjustment_changed_cb),
+ ev_sidebar_thumbnails);
+ gtk_box_pack_start (GTK_BOX (ev_sidebar_thumbnails), priv->swindow, TRUE, TRUE, 0);
+
+ /* Put it all together */
+ gtk_widget_show_all (priv->swindow);
+}
+
+static void
+ev_sidebar_thumbnails_set_current_page (EvSidebarThumbnails *sidebar,
+ gint page)
+{
+ GtkTreeView *tree_view;
+ GtkTreePath *path;
+
+ path = gtk_tree_path_new_from_indices (page, -1);
+
+ if (sidebar->priv->tree_view) {
+ tree_view = GTK_TREE_VIEW (sidebar->priv->tree_view);
+ gtk_tree_view_set_cursor (tree_view, path, NULL, FALSE);
+ gtk_tree_view_scroll_to_cell (tree_view, path, NULL, FALSE, 0.0, 0.0);
+ } else if (sidebar->priv->icon_view) {
+
+ g_signal_handlers_block_by_func
+ (sidebar->priv->icon_view,
+ G_CALLBACK (ev_sidebar_icon_selection_changed), sidebar);
+
+ gtk_icon_view_select_path (GTK_ICON_VIEW (sidebar->priv->icon_view), path);
+
+ g_signal_handlers_unblock_by_func
+ (sidebar->priv->icon_view,
+ G_CALLBACK (ev_sidebar_icon_selection_changed), sidebar);
+
+ gtk_icon_view_set_cursor (GTK_ICON_VIEW (sidebar->priv->icon_view), path, NULL, FALSE);
+ }
+
+ gtk_tree_path_free (path);
+}
+
+static void
+page_changed_cb (EvSidebarThumbnails *sidebar,
+ gint old_page,
+ gint new_page)
+{
+ ev_sidebar_thumbnails_set_current_page (sidebar, new_page);
+}
+
+static gboolean
+refresh (EvSidebarThumbnails *sidebar_thumbnails)
+{
+ adjustment_changed_cb (sidebar_thumbnails);
+ return FALSE;
+}
+
+static void
+ev_sidebar_thumbnails_reload (EvSidebarThumbnails *sidebar_thumbnails)
+{
+ EvDocumentModel *model;
+
+ if (sidebar_thumbnails->priv->loading_icons)
+ g_hash_table_remove_all (sidebar_thumbnails->priv->loading_icons);
+
+ if (sidebar_thumbnails->priv->document == NULL ||
+ sidebar_thumbnails->priv->n_pages <= 0)
+ return;
+
+ model = sidebar_thumbnails->priv->model;
+
+ ev_sidebar_thumbnails_clear_model (sidebar_thumbnails);
+ ev_sidebar_thumbnails_fill_model (sidebar_thumbnails);
+
+ /* Trigger a redraw */
+ sidebar_thumbnails->priv->start_page = -1;
+ sidebar_thumbnails->priv->end_page = -1;
+ ev_sidebar_thumbnails_set_current_page (sidebar_thumbnails,
+ ev_document_model_get_page (model));
+ g_idle_add ((GSourceFunc)refresh, sidebar_thumbnails);
+}
+
+static void
+ev_sidebar_thumbnails_rotation_changed_cb (EvDocumentModel *model,
+ GParamSpec *pspec,
+ EvSidebarThumbnails *sidebar_thumbnails)
+{
+ gint rotation = ev_document_model_get_rotation (model);
+
+ sidebar_thumbnails->priv->rotation = rotation;
+ ev_sidebar_thumbnails_reload (sidebar_thumbnails);
+}
+
+static void
+ev_sidebar_thumbnails_inverted_colors_changed_cb (EvDocumentModel *model,
+ GParamSpec *pspec,
+ EvSidebarThumbnails *sidebar_thumbnails)
+{
+ gboolean inverted_colors = ev_document_model_get_inverted_colors (model);
+
+ sidebar_thumbnails->priv->inverted_colors = inverted_colors;
+ ev_sidebar_thumbnails_reload (sidebar_thumbnails);
+}
+
+static void
+thumbnail_job_completed_callback (EvJobThumbnail *job,
+ EvSidebarThumbnails *sidebar_thumbnails)
+{
+ EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
+ GtkTreeIter *iter;
+
+ iter = (GtkTreeIter *) g_object_get_data (G_OBJECT (job), "tree_iter");
+ if (priv->inverted_colors)
+ ev_document_misc_invert_pixbuf (job->thumbnail);
+ gtk_list_store_set (priv->list_store,
+ iter,
+ COLUMN_PIXBUF, job->thumbnail,
+ COLUMN_THUMBNAIL_SET, TRUE,
+ COLUMN_JOB, NULL,
+ -1);
+}
+
+static void
+ev_sidebar_thumbnails_document_changed_cb (EvDocumentModel *model,
+ GParamSpec *pspec,
+ EvSidebarThumbnails *sidebar_thumbnails)
+{
+ EvDocument *document = ev_document_model_get_document (model);
+ EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
+
+ if (!EV_IS_DOCUMENT_THUMBNAILS (document) ||
+ ev_document_get_n_pages (document) <= 0 ||
+ !ev_document_check_dimensions (document)) {
+ return;
+ }
+
+ priv->size_cache = ev_thumbnails_size_cache_get (document);
+ priv->document = document;
+ priv->n_pages = ev_document_get_n_pages (document);
+ priv->rotation = ev_document_model_get_rotation (model);
+ priv->inverted_colors = ev_document_model_get_inverted_colors (model);
+ priv->loading_icons = g_hash_table_new_full (g_str_hash,
+ g_str_equal,
+ (GDestroyNotify)g_free,
+ (GDestroyNotify)g_object_unref);
+
+ ev_sidebar_thumbnails_clear_model (sidebar_thumbnails);
+ ev_sidebar_thumbnails_fill_model (sidebar_thumbnails);
+
+ /* Create the view widget, and remove the old one, if needed */
+ if (ev_sidebar_thumbnails_use_icon_view (sidebar_thumbnails)) {
+ if (priv->tree_view) {
+ gtk_container_remove (GTK_CONTAINER (priv->swindow), priv->tree_view);
+ priv->tree_view = NULL;
+ }
+
+ if (! priv->icon_view) {
+ ev_sidebar_init_icon_view (sidebar_thumbnails);
+ g_object_notify (G_OBJECT (sidebar_thumbnails), "main_widget");
+ } else {
+ gtk_widget_queue_resize (priv->icon_view);
+ }
+ } else {
+ if (priv->icon_view) {
+ gtk_container_remove (GTK_CONTAINER (priv->swindow), priv->icon_view);
+ priv->icon_view = NULL;
+ }
+
+ if (! priv->tree_view) {
+ ev_sidebar_init_tree_view (sidebar_thumbnails);
+ g_object_notify (G_OBJECT (sidebar_thumbnails), "main_widget");
+ }
+ }
+
+ /* Connect to the signal and trigger a fake callback */
+ g_signal_connect_swapped (priv->model, "page-changed",
+ G_CALLBACK (page_changed_cb),
+ sidebar_thumbnails);
+ g_signal_connect (priv->model, "notify::rotation",
+ G_CALLBACK (ev_sidebar_thumbnails_rotation_changed_cb),
+ sidebar_thumbnails);
+ g_signal_connect (priv->model, "notify::inverted-colors",
+ G_CALLBACK (ev_sidebar_thumbnails_inverted_colors_changed_cb),
+ sidebar_thumbnails);
+ sidebar_thumbnails->priv->start_page = -1;
+ sidebar_thumbnails->priv->end_page = -1;
+ ev_sidebar_thumbnails_set_current_page (sidebar_thumbnails,
+ ev_document_model_get_page (model));
+ adjustment_changed_cb (sidebar_thumbnails);
+}
+
+static void
+ev_sidebar_thumbnails_set_model (EvSidebarPage *sidebar_page,
+ EvDocumentModel *model)
+{
+ EvSidebarThumbnails *sidebar_thumbnails = EV_SIDEBAR_THUMBNAILS (sidebar_page);
+ EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
+
+ if (priv->model == model)
+ return;
+
+ priv->model = model;
+ g_signal_connect (model, "notify::document",
+ G_CALLBACK (ev_sidebar_thumbnails_document_changed_cb),
+ sidebar_page);
+}
+
+static gboolean
+ev_sidebar_thumbnails_clear_job (GtkTreeModel *model, 
+ GtkTreePath *path,
+ GtkTreeIter *iter,
+ gpointer data)
+{
+ EvJob *job;
+ 
+ gtk_tree_model_get (model, iter, COLUMN_JOB, &job, -1);
+ 
+ if (job != NULL) {
+ ev_job_cancel (job);
+ g_signal_handlers_disconnect_by_func (job, thumbnail_job_completed_callback, data);
+ g_object_unref (job);
+ }
+ 
+ return FALSE; 
+}
+
+static void 
+ev_sidebar_thumbnails_clear_model (EvSidebarThumbnails *sidebar_thumbnails)
+{
+ EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
+ 
+ gtk_tree_model_foreach (GTK_TREE_MODEL (priv->list_store), ev_sidebar_thumbnails_clear_job, sidebar_thumbnails);
+ gtk_list_store_clear (priv->list_store);
+}
+
+static gboolean
+ev_sidebar_thumbnails_support_document (EvSidebarPage *sidebar_page,
+ EvDocument *document)
+{
+ return (EV_IS_DOCUMENT_THUMBNAILS (document));
+}
+
+static const gchar*
+ev_sidebar_thumbnails_get_label (EvSidebarPage *sidebar_page)
+{
+ return _("Thumbnails");
+}
+
+static void
+ev_sidebar_thumbnails_page_iface_init (EvSidebarPageInterface *iface)
+{
+ iface->support_document = ev_sidebar_thumbnails_support_document;
+ iface->set_model = ev_sidebar_thumbnails_set_model;
+ iface->get_label = ev_sidebar_thumbnails_get_label;
+}