--- /dev/null
+/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
+
+ imagecache.h for the Openbox window manager
+ Copyright (c) 2008 Dana Jansens
+
+ This program 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.
+
+ 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.
+
+ See the COPYING file for a copy of the GNU General Public License.
+*/
+
+#ifndef __imagecache_h
+#define __imagecache_h
+
+#include <glib.h>
+
+struct _RrImagePic;
+
+guint RrImagePicHash(const struct _RrImagePic *p);
+
+/*! Create a new image cache. An image cache is basically a hash table to look
+ up RrImages. Each RrImage in the cache may contain one or more Pictures,
+ that is one or more actual copies of image data at various sizes. For eg,
+ for a window, all of its various icons are loaded into the same RrImage.
+ When an RrImage is drawn and a picture inside it needs to be resized, that
+ is also saved within the RrImage.
+
+ For each picture that an RrImage has, the picture is hashed and that is used
+ as a key to find the RrImage. So, given any picture in any RrImage in the
+ cache, if you hash it, you will find the RrImage.
+*/
+struct _RrImageCache {
+ gint ref;
+ /*! When an original picture is resized for an RrImage, the resized picture
+ is saved in the RrImage. This specifies how many pictures should be
+ saved at a time. When this is exceeded, the least recently used
+ "resized" picture is deleted.
+ */
+ gint max_resized_saved;
+
+ GHashTable *table;
+};
+
+#endif