diff options
Diffstat (limited to 'shell/e-icon-factory.c')
| -rw-r--r-- | shell/e-icon-factory.c | 161 |
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; +} |