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/* -*- 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, "-mini.png", NULL);
small_pixbuf = gdk_pixbuf_new_from_file (path);
g_free (path);
path = g_strconcat (EVOLUTION_IMAGES, "/", icon_name, ".png", NULL);
large_pixbuf = gdk_pixbuf_new_from_file (path);
g_free (path);
if (large_pixbuf == NULL || small_pixbuf == NULL)
return NULL;
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;
}
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