Add thumbnail support.

2004-12-22  Anders Carlsson  <andersca@gnome.org>

	* backend/Makefile.am:
	* backend/ev-document-thumbnails.c:
	(ev_document_thumbnails_get_type),
	(ev_document_thumbnails_get_thumbnail):
	* backend/ev-document-thumbnails.h:
	* pixbuf/pixbuf-document.c: (G_DEFINE_TYPE_WITH_CODE),
	(pixbuf_document_thumbnails_get_thumbnail),
	(pixbuf_document_document_thumbnails_iface_init):
	* shell/Makefile.am:
	* shell/ev-sidebar-thumbnails.c: (ev_sidebar_thumbnails_destroy),
	(ev_sidebar_thumbnails_class_init), (ev_sidebar_thumbnails_init),
	(populate_thumbnails), (ev_sidebar_thumbnails_set_document):
	* shell/ev-sidebar-thumbnails.h:
	* shell/ev-sidebar.c: (ev_sidebar_init), (ev_sidebar_add_page),
	(ev_sidebar_set_document):
	* shell/ev-utils.c: (gaussian), (create_blur_filter),
	(create_shadow), (ev_pixbuf_add_shadow):
	* shell/ev-utils.h:
	Add thumbnail support.

1 files changed, 150 insertions, 11 deletions

diff --git a/shell/ev-sidebar-thumbnails.c b/shell/ev-sidebar-thumbnails.c
index a2f5d76..c727abf 100644
--- a/shell/ev-sidebar-thumbnails.c
+++ b/shell/ev-sidebar-thumbnails.c
@@ -1,9 +1,11 @@
 /* this file is part of evince, a gnome document viewer
  *
  *  Copyright (C) 2004 Red Hat, Inc.
+ *  Copyright (C) 2004 Anders Carlsson <andersca@gnome.org>
  *
- *  Author:
+ *  Authors:
  *    Jonathan Blandford <jrb@alum.mit.edu>
+ *    Anders Carlsson <andersca@gnome.org>
  *
  * Evince is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by
@@ -28,23 +30,61 @@
 #include <gtk/gtk.h>
 
 #include "ev-sidebar-thumbnails.h"
+#include "ev-document-thumbnails.h"
+#include "ev-utils.h"
+
+#define THUMBNAIL_WIDTH 96
 
 struct _EvSidebarThumbnailsPrivate {
-	int dummy;
+	GtkWidget *tree_view;
+	GtkListStore *list_store;
+	EvDocument *document;
+	
+	guint idle_id;
+	gint current_page, n_pages;
+};
+
+enum {
+	COLUMN_PAGE_STRING,
+	COLUMN_PIXBUF,
+	NUM_COLUMNS
 };
 
-G_DEFINE_TYPE (EvSidebarThumbnails, ev_sidebar_thumbnails, GTK_TYPE_VBOX)
+static GtkVBoxClass *parent_class;
+
+G_DEFINE_TYPE (EvSidebarThumbnails, ev_sidebar_thumbnails, GTK_TYPE_VBOX);
 
 #define EV_SIDEBAR_THUMBNAILS_GET_PRIVATE(object) \
-	(G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR_THUMBNAILS, EvSidebarThumbnailsPrivate))
+	(G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR_THUMBNAILS, EvSidebarThumbnailsPrivate));
+
+static void
+ev_sidebar_thumbnails_destroy (GtkObject *object)
+{
+	EvSidebarThumbnails *ev_sidebar_thumbnails = EV_SIDEBAR_THUMBNAILS (object);
+	EvSidebarThumbnailsPrivate *priv = ev_sidebar_thumbnails->priv;
+	
+	if (priv->idle_id != 0) {
+		g_source_remove (priv->idle_id);
+
+		priv->idle_id = 0;
+	}
+	
+	GTK_OBJECT_CLASS (parent_class)->destroy (object);
+}
 
 static void
 ev_sidebar_thumbnails_class_init (EvSidebarThumbnailsClass *ev_sidebar_thumbnails_class)
 {
 	GObjectClass *g_object_class;
-
+	GtkObjectClass *gtk_object_class;
+	
 	g_object_class = G_OBJECT_CLASS (ev_sidebar_thumbnails_class);
+	gtk_object_class = GTK_OBJECT_CLASS (ev_sidebar_thumbnails_class);
 
+ 	parent_class = g_type_class_peek_parent (ev_sidebar_thumbnails_class);
+	
+	gtk_object_class->destroy = ev_sidebar_thumbnails_destroy;
+	
 	g_type_class_add_private (g_object_class, sizeof (EvSidebarThumbnailsPrivate));
 
 }
@@ -52,14 +92,34 @@ ev_sidebar_thumbnails_class_init (EvSidebarThumbnailsClass *ev_sidebar_thumbnail
 static void
 ev_sidebar_thumbnails_init (EvSidebarThumbnails *ev_sidebar_thumbnails)
 {
-	GtkWidget *label;
+	GtkWidget *swindow;
+	EvSidebarThumbnailsPrivate *priv;
+
+	priv = ev_sidebar_thumbnails->priv = EV_SIDEBAR_THUMBNAILS_GET_PRIVATE (ev_sidebar_thumbnails);
 
-	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);
+	priv->tree_view = gtk_tree_view_new_with_model (GTK_TREE_MODEL (priv->list_store));
+
+	gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE);
+	gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (priv->tree_view), -1,
+						     NULL, gtk_cell_renderer_pixbuf_new (),
+						     "pixbuf", 1, NULL);
+	gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (priv->tree_view), -1,
+						     NULL, gtk_cell_renderer_text_new (),
+						     "text", 0, NULL);
 	
-	label = gtk_label_new ("Thumbnails!");
-	gtk_box_pack_start (GTK_BOX (ev_sidebar_thumbnails), label,
-			    TRUE, TRUE, 0);
-	gtk_widget_show (label);
+	g_object_unref (priv->list_store);
+
+	swindow = gtk_scrolled_window_new (NULL, NULL);
+	gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
+					GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
+	gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (swindow),
+					     GTK_SHADOW_IN);
+
+	gtk_container_add (GTK_CONTAINER (swindow), priv->tree_view);
+	gtk_box_pack_start (GTK_BOX (ev_sidebar_thumbnails), swindow, TRUE, TRUE, 0);
+	
+	gtk_widget_show_all (swindow);
 }
 
 GtkWidget *
@@ -71,3 +131,82 @@ ev_sidebar_thumbnails_new (void)
 
 	return ev_sidebar_thumbnails;
 }
+
+static gboolean
+populate_thumbnails (gpointer data)
+{
+	EvSidebarThumbnails *ev_sidebar_thumbnails = EV_SIDEBAR_THUMBNAILS (data);
+	EvSidebarThumbnailsPrivate *priv = ev_sidebar_thumbnails->priv;
+	GdkPixbuf *tmp, *pixbuf;
+	GtkTreePath *path;
+	GtkTreeIter iter;
+	
+	tmp = ev_document_thumbnails_get_thumbnail (EV_DOCUMENT_THUMBNAILS (priv->document),
+						       priv->current_page, THUMBNAIL_WIDTH);
+
+
+	/* Add shadow */
+	pixbuf = ev_pixbuf_add_shadow (tmp, 5, 0, 0, 0.5);
+	
+	path = gtk_tree_path_new_from_indices (priv->current_page, -1);
+	gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->list_store), &iter, path);
+	gtk_tree_path_free (path);
+
+	gtk_list_store_set (priv->list_store, &iter,
+			    COLUMN_PIXBUF, pixbuf,
+			    -1);
+
+	g_object_unref (tmp);
+	g_object_unref (pixbuf);
+	
+	priv->current_page++;
+	
+	if (priv->current_page == priv->n_pages)
+		return FALSE;
+	else
+		return TRUE;
+}
+
+void
+ev_sidebar_thumbnails_set_document (EvSidebarThumbnails *sidebar_thumbnails,
+				    EvDocument          *document)
+{
+	GtkIconTheme *theme;
+	GdkPixbuf *loading_icon;
+	gint i, n_pages;
+	EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
+	
+	g_return_if_fail (EV_IS_DOCUMENT_THUMBNAILS (document));
+
+	if (priv->idle_id != 0) {
+		g_source_remove (priv->idle_id);
+	}
+	
+	theme = gtk_icon_theme_get_for_screen (gtk_widget_get_screen (GTK_WIDGET (sidebar_thumbnails)));
+
+	loading_icon = gtk_icon_theme_load_icon (theme, "gnome-fs-loading-icon",
+						 THUMBNAIL_WIDTH, 0, NULL);
+
+	n_pages = ev_document_get_n_pages (document);
+	
+	for (i = 0; i < n_pages; i++) {
+		GtkTreeIter iter;
+		gchar *page;
+
+		page = g_strdup_printf ("Page %d", i + 1);
+		gtk_list_store_append (sidebar_thumbnails->priv->list_store,
+				       &iter);
+		gtk_list_store_set (sidebar_thumbnails->priv->list_store,
+				    &iter,
+				    COLUMN_PAGE_STRING, page,
+				    COLUMN_PIXBUF, loading_icon,
+				    -1);
+		g_free (page);
+	}
+
+	priv->document = document;
+	priv->idle_id = g_idle_add (populate_thumbnails, sidebar_thumbnails);
+	priv->n_pages = n_pages;
+	priv->current_page = 0;
+}
+