ede/edelib2/Icon.cpp

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/*
* $Id$
*
* edelib::Icon - General icon library with support for Icon themes
* Part of Equinox Desktop Environment (EDE).
* Copyright (c) 2000-2006 EDE Authors.
*
* This program is licenced under terms of the
* GNU General Public Licence version 2 or newer.
* See COPYING for details.
*/
#include <dirent.h>
#include <sys/stat.h>
#include <fltk/Group.h>
#include <fltk/filename.h>
#include "Icon.h"
#include "Config.h"
#include "../edeconf.h"
using namespace fltk;
using namespace edelib;
// FIXME: use an EDE internal default theme
const char* Icon::iconspath = PREFIX"/share/icons";
const char* Icon::defaulttheme = "crystalsvg";
char* Icon::theme = 0;
// Read configuration to detect currently active theme
void Icon::read_theme_config()
{
char temp_value[PATH_MAX];
if (theme) free(theme);
Config cfg(find_config_file("ede.conf", 0));
cfg.set_section("Icons");
if (!cfg.read("IconTheme", temp_value, 0, sizeof(temp_value)))
theme = strdup(temp_value);
if (!theme || strlen(theme)<2)
theme = strdup(defaulttheme);
}
// Change theme in configuration
void Icon::set_theme(const char *t)
{
if (theme) free(theme);
theme = strdup(t);
Config cfg(find_config_file("ede.conf", true));
cfg.set_section("Icons");
cfg.write("IconTheme", theme);
}
// Search theme directory for icon file of given name
// Icon names are unique, regardless of subdirectories. The
// "actions", "apps", "devices" etc. are just an idea that
// never lived. So we simply flatten the KDE directory
// structure.
// Alternatively, if there are different icons in subdirs with
// same name, you can provide e.g. subdir/filename and it will
// work.
const char *find_icon(const char *name, const char *directory)
{
dirent **files;
static char filename[PATH_MAX];
snprintf (filename, PATH_MAX, "%s/%s", directory, name);
if (filename_exist(filename)) return filename;
snprintf (filename, PATH_MAX, "%s/%s.png", directory, name);
if (filename_exist(filename)) return filename;
snprintf (filename, PATH_MAX, "%s/%s.xpm", directory, name);
if (filename_exist(filename)) return filename;
// Look in subdirectories
const int num_files = filename_list(directory, &files);
char dirname[PATH_MAX];
for (int i=0; i<num_files; i++) {
if ((strcmp(files[i]->d_name,"./") == 0) || strcmp(files[i]->d_name,"../") == 0) continue;
snprintf (dirname, PATH_MAX, "%s/%s", directory, files[i]->d_name);
if (filename_isdir(dirname)) {
// Cut last slash
if (dirname[strlen(dirname)-1] == '/')
dirname[strlen(dirname)-1] = '\0';
const char *tmp = find_icon(name, dirname);
if (tmp) return tmp;
}
}
// Not found
return 0;
}
// Create icon with given "standard" name
Icon* Icon::get(const char *name, int size)
{
char directory[PATH_MAX];
// FIXME: rescale icon from other sizes
if (size!=TINY && size!=SMALL && size!=MEDIUM && size!=LARGE && size!=HUGE)
{
fprintf (stderr, "Edelib: ERROR: We don't support icon size %d... using %dx%d\n", size, MEDIUM, MEDIUM);
size=MEDIUM;
}
snprintf (directory, PATH_MAX, "%s/%s/%dx%d", iconspath, get_theme(), size, size);
const char *icon = find_icon(name, directory);
if (!icon) // Fallback to icon from default theme, if not found
{
snprintf (directory, sizeof(directory), "%s/%s/%dx%d", iconspath, defaulttheme, size, size);
icon = find_icon(name, directory);
}
if (!icon && size!=TINY) // No default icon in this size
{
snprintf (directory, sizeof(directory), "%s/%s/%dx%d", iconspath, defaulttheme, TINY, TINY);
icon = find_icon(name, directory);
// TODO: scale icon from tiny to requested size
}
if (!icon)
return 0; // sorry
else
{
//fprintf(stderr,"Ikona: %s\n",icon);
Icon* i = (Icon*)pngImage::get(icon);
// free(icon); // no need to free icon
//i->transp_index(255);
//fprintf (stderr, "Name: %s Transp_index: %d Pixel type: %d\n", name, i->transp_index(), i->pixel_type());
return i;
}
}