1 files changed, 161 insertions, 0 deletions
diff --git a/shell/e-icon-factory.c b/shell/e-icon-factory.c
new file mode 100644
index 0000000000..8a66237605
--- /dev/null
+++ b/shell/e-icon-factory.c
@@ -0,0 +1,161 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+/* e-icon-factory.c - Icon factory for the Evolution shell.
+ *
+ * Copyright (C) 2002 Ximian, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Author: Ettore Perazzoli <ettore@ximian.com>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "e-icon-factory.h"
+
+#include "e-shell-constants.h"
+
+
+/* One icon.  Keep both a small (16x16) and a large (48x48) version around.  */
+
+struct _Icon {
+	char *name;
+	GdkPixbuf *small_pixbuf;
+	GdkPixbuf *large_pixbuf;
+};
+typedef struct _Icon Icon;
+
+/* Hash of all the icons.  */
+static GHashTable *name_to_icon = NULL;
+
+
+/* Creating and destroying icons.  */
+
+static Icon *
+icon_new (const char *name,
+	  GdkPixbuf *small_pixbuf,
+	  GdkPixbuf *large_pixbuf)
+{
+	Icon *icon;
+
+	icon = g_new (Icon, 1);
+	icon->name         = g_strdup (name);
+	icon->small_pixbuf = small_pixbuf;
+	icon->large_pixbuf = large_pixbuf;
+
+	if (small_pixbuf != NULL)
+		gdk_pixbuf_ref (small_pixbuf);
+	if (large_pixbuf != NULL)
+		gdk_pixbuf_ref (large_pixbuf);
+
+	return icon;
+}
+
+#if 0
+
+/* (This is not currently used since we never prune icons out of the
+   cache.)  */
+static void
+icon_free (Icon *icon)
+{
+	g_free (icon->name);
+
+	if (icon->large_pixbuf != NULL)
+		gdk_pixbuf_unref (icon->large_pixbuf);
+	if (icon->small_pixbuf != NULL)
+		gdk_pixbuf_unref (icon->small_pixbuf);
+
+	g_free (icon);
+}
+
+#endif
+
+
+/* Loading icons.  */
+
+static Icon *
+load_icon (const char *icon_name)
+{
+	GdkPixbuf *small_pixbuf;
+	GdkPixbuf *large_pixbuf;
+	Icon *icon;
+	char *path;
+
+	path = g_strconcat (EVOLUTION_IMAGES, "/", icon_name, ".png", NULL);
+	small_pixbuf = gdk_pixbuf_new_from_file (path);
+	if (small_pixbuf == NULL)
+		return NULL;
+	g_free (path);
+
+	path = g_strconcat (EVOLUTION_IMAGES, "/", icon_name, "-mini.png", NULL);
+	large_pixbuf = gdk_pixbuf_new_from_file (path);
+	if (large_pixbuf == NULL)
+		return NULL;
+	g_free (path);
+
+	icon = icon_new (icon_name, small_pixbuf, large_pixbuf);
+
+	gdk_pixbuf_unref (small_pixbuf);
+	gdk_pixbuf_unref (large_pixbuf);
+
+	return icon;
+}
+
+
+/* Public API.  */
+
+void
+e_icon_factory_init (void)
+{
+	if (name_to_icon != NULL) {
+		/* Already initialized.  */
+		return;
+	}
+
+	name_to_icon = g_hash_table_new (g_str_hash, g_str_equal);
+}
+
+GdkPixbuf *
+e_icon_factory_get_icon (const char *icon_name,
+			 gboolean mini)
+{
+	Icon *icon;
+
+	g_return_val_if_fail (icon_name != NULL, NULL);
+
+	icon = g_hash_table_lookup (name_to_icon, icon_name);
+	if (icon == NULL) {
+		icon = load_icon (icon_name);
+		if (icon == NULL) {
+			g_warning ("Icon not found -- %s", icon_name);
+
+			/* Create an empty icon so that we don't keep spitting
+			   out the same warning over and over, every time this
+			   icon is requested.  */
+
+			icon = icon_new (icon_name, NULL, NULL);
+			g_hash_table_insert (name_to_icon, icon->name, icon);
+			return NULL;
+		}
+
+		g_hash_table_insert (name_to_icon, icon->name, icon);
+	}
+
+	if (mini)
+		return icon->small_pixbuf;
+	else
+		return icon->large_pixbuf;
+}