0352abfa88
Image loading is done using the Imlib2 library. I chose Imlib2 because it's pretty fast, it's easy to use, supports many file formats (tested xpm, gif, jpeg, png) and doesn't introduce too much bloat (it depends :)). I ported the patch to 3.4.7-pre3 and added some enhancements. Caching is much better now, and icons can be disabled at compile time using --disable-imlib2 option. What's new? Syntax of configuration files (namely rc.xml and menu.xml) has been changed slightly to allow users to associate icons to menu entries. This is done by specifying path to icon file in the new "icon" attribute in "<item>" element, e.g: <item label="Vim" icon="/usr/share/pixmaps/vim-32.xpm"> <action name="Execute"><execute>x-terminal-emulator -T Vim -e vim</execute></action> </item> If user doesn't want to display any icons in his user-defined menus, he/she can disable icons in rc.xml, inside "<menu>" section: <menu> ... <showIcons>no</showIcons> ... </menu> Default value is "yes". (New boolean variable "config_menu_user_show_icons" has been added to source code.) An icon is loaded (using menu_item_attach_icon()) when a new entry of menu is created. Fortunately, I haven't notice any performance problems because of this :).
55 lines
2 KiB
C
55 lines
2 KiB
C
/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
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imagecache.h for the Openbox window manager
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Copyright (c) 2008 Dana Jansens
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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See the COPYING file for a copy of the GNU General Public License.
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*/
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#ifndef __imagecache_h
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#define __imagecache_h
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#include <glib.h>
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struct _RrImagePic;
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guint RrImagePicHash(const struct _RrImagePic *p);
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/*! Create a new image cache. An image cache is basically a hash table to look
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up RrImages. Each RrImage in the cache may contain one or more Pictures,
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that is one or more actual copies of image data at various sizes. For eg,
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for a window, all of its various icons are loaded into the same RrImage.
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When an RrImage is drawn and a picture inside it needs to be resized, that
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is also saved within the RrImage.
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For each picture that an RrImage has, the picture is hashed and that is used
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as a key to find the RrImage. So, given any picture in any RrImage in the
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cache, if you hash it, you will find the RrImage.
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*/
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struct _RrImageCache {
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gint ref;
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/*! When an original picture is resized for an RrImage, the resized picture
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is saved in the RrImage. This specifies how many pictures should be
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saved at a time. When this is exceeded, the least recently used
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"resized" picture is deleted.
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*/
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gint max_resized_saved;
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GHashTable *table;
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/* Used to find out if an image file has already been loaded.
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Quick file_name -> RrImage lookup. */
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GHashTable *file_name_table;
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};
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#endif
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