tint2/src/launcher/icon-theme-common.c

807 lines
29 KiB
C

/**************************************************************************
* Tint2 : Icon theme handling
*
* Copyright (C) 2015 (mrovi9000@gmail.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**************************************************************************/
/* http://standards.freedesktop.org/icon-theme-spec/ */
#include "icon-theme-common.h"
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "apps-common.h"
#include "common.h"
#include "cache.h"
gboolean debug_icons = FALSE;
#define ICON_DIR_TYPE_SCALABLE 0
#define ICON_DIR_TYPE_FIXED 1
#define ICON_DIR_TYPE_THRESHOLD 2
typedef struct IconThemeDir {
char *name;
int size;
int type;
int max_size;
int min_size;
int threshold;
} IconThemeDir;
int parse_theme_line(char *line, char **key, char **value)
{
return parse_dektop_line(line, key, value);
}
GSList *icon_locations = NULL;
// Do not free the result.
const GSList *get_icon_locations()
{
if (icon_locations)
return icon_locations;
icon_locations = load_locations_from_env(icon_locations, "XDG_DATA_HOME", ".icons", NULL);
icon_locations = g_slist_append(icon_locations, g_build_filename(g_get_home_dir(), ".icons", NULL));
icon_locations = g_slist_append(icon_locations, g_build_filename(g_get_home_dir(), ".local/share/icons", NULL));
icon_locations = load_locations_from_env(icon_locations, "XDG_DATA_DIRS", ".icons", ".pixmaps", NULL);
icon_locations = g_slist_append(icon_locations, g_strdup("/usr/local/share/icons"));
icon_locations = g_slist_append(icon_locations, g_strdup("/usr/local/share/pixmaps"));
icon_locations = g_slist_append(icon_locations, g_strdup("/usr/share/icons"));
icon_locations = g_slist_append(icon_locations, g_strdup("/usr/share/pixmaps"));
icon_locations = g_slist_append(icon_locations, g_strdup("/opt/share/icons"));
icon_locations = g_slist_append(icon_locations, g_strdup("/opt/share/pixmaps"));
icon_locations = slist_remove_duplicates(icon_locations, g_str_equal, g_free);
return icon_locations;
}
IconTheme *make_theme(const char *name)
{
IconTheme *theme = calloc(1, sizeof(IconTheme));
theme->name = strdup(name);
theme->list_inherits = NULL;
theme->list_directories = NULL;
return theme;
}
// TODO Use UTF8 when parsing the file
IconTheme *load_theme_from_index(const char *file_name, const char *name)
{
IconTheme *theme;
FILE *f;
char *line = NULL;
size_t line_size;
if ((f = fopen(file_name, "rt")) == NULL) {
fprintf(stderr, "tint2: Could not open theme '%s'\n", file_name);
return NULL;
}
theme = make_theme(name);
IconThemeDir *current_dir = NULL;
int inside_header = 1;
while (getline(&line, &line_size, f) >= 0) {
char *key, *value;
int line_len = strlen(line);
if (line_len >= 1) {
if (line[line_len - 1] == '\n') {
line[line_len - 1] = '\0';
line_len--;
}
}
if (line_len == 0)
continue;
if (inside_header) {
if (parse_theme_line(line, &key, &value)) {
if (strcmp(key, "Inherits") == 0) {
// value is like oxygen,wood,default
char *token;
token = strtok(value, ",\n");
while (token != NULL) {
theme->list_inherits = g_slist_append(theme->list_inherits, strdup(token));
token = strtok(NULL, ",\n");
}
} else if (strcmp(key, "Directories") == 0) {
// value is like 48x48/apps,48x48/mimetypes,32x32/apps,scalable/apps,scalable/mimetypes
char *token;
token = strtok(value, ",\n");
while (token != NULL) {
IconThemeDir *dir = calloc(1, sizeof(IconThemeDir));
dir->name = strdup(token);
dir->max_size = dir->min_size = dir->size = -1;
dir->type = ICON_DIR_TYPE_THRESHOLD;
dir->threshold = 2;
theme->list_directories = g_slist_append(theme->list_directories, dir);
token = strtok(NULL, ",\n");
}
}
}
} else if (current_dir != NULL) {
if (parse_theme_line(line, &key, &value)) {
if (strcmp(key, "Size") == 0) {
// value is like 24
sscanf(value, "%d", &current_dir->size);
if (current_dir->max_size == -1)
current_dir->max_size = current_dir->size;
if (current_dir->min_size == -1)
current_dir->min_size = current_dir->size;
} else if (strcmp(key, "MaxSize") == 0) {
// value is like 24
sscanf(value, "%d", &current_dir->max_size);
} else if (strcmp(key, "MinSize") == 0) {
// value is like 24
sscanf(value, "%d", &current_dir->min_size);
} else if (strcmp(key, "Threshold") == 0) {
// value is like 2
sscanf(value, "%d", &current_dir->threshold);
} else if (strcmp(key, "Type") == 0) {
// value is Fixed, Scalable or Threshold : default to scalable for unknown Type.
if (strcmp(value, "Fixed") == 0) {
current_dir->type = ICON_DIR_TYPE_FIXED;
} else if (strcmp(value, "Threshold") == 0) {
current_dir->type = ICON_DIR_TYPE_THRESHOLD;
} else {
current_dir->type = ICON_DIR_TYPE_SCALABLE;
}
}
}
}
if (line[0] == '[' && line[line_len - 1] == ']' && strcmp(line, "[Icon Theme]") != 0) {
inside_header = 0;
current_dir = NULL;
line[line_len - 1] = '\0';
char *dir_name = line + 1;
GSList *dir_item = theme->list_directories;
while (dir_item != NULL) {
IconThemeDir *dir = dir_item->data;
if (strcmp(dir->name, dir_name) == 0) {
current_dir = dir;
break;
}
dir_item = g_slist_next(dir_item);
}
}
}
fclose(f);
free(line);
return theme;
}
void load_theme_from_fs_dir(IconTheme *theme, const char *dir_name)
{
gchar *file_name = g_build_filename(dir_name, "index.theme", NULL);
if (g_file_test(file_name, G_FILE_TEST_EXISTS)) {
g_free(file_name);
return;
}
GDir *d = g_dir_open(dir_name, 0, NULL);
if (d) {
const gchar *size_name;
while ((size_name = g_dir_read_name(d))) {
gchar *full_size_name = g_build_filename(dir_name, size_name, NULL);
if (g_file_test(file_name, G_FILE_TEST_IS_DIR)) {
int size, size2;
if ((sscanf(size_name, "%dx%d", &size, &size2) == 2 && size == size2) ||
(sscanf(size_name, "%d", &size) == 1)) {
GDir *dSize = g_dir_open(full_size_name, 0, NULL);
if (dSize) {
const gchar *subdir_name;
while ((subdir_name = g_dir_read_name(dSize))) {
IconThemeDir *dir = calloc(1, sizeof(IconThemeDir));
// value is like 48x48/apps
gchar *value = g_build_filename(size_name, subdir_name, NULL);
dir->name = strdup(value);
g_free(value);
dir->max_size = dir->min_size = dir->size = size;
dir->type = ICON_DIR_TYPE_FIXED;
theme->list_directories = g_slist_append(theme->list_directories, dir);
}
g_dir_close(dSize);
}
}
}
g_free(full_size_name);
}
g_dir_close(d);
}
}
IconTheme *load_theme_from_fs(const char *name, IconTheme *theme)
{
gchar *dir_name = NULL;
for (const GSList *location = get_icon_locations(); location; location = g_slist_next(location)) {
gchar *path = (gchar *)location->data;
dir_name = g_build_filename(path, name, NULL);
if (g_file_test(dir_name, G_FILE_TEST_IS_DIR)) {
if (!theme) {
theme = make_theme(name);
}
load_theme_from_fs_dir(theme, dir_name);
}
g_free(dir_name);
dir_name = NULL;
}
return theme;
}
IconTheme *load_theme(const char *name)
{
// Look for name/index.theme in $HOME/.icons, /usr/share/icons, /usr/share/pixmaps (stop at the first found)
// Parse index.theme -> list of IconThemeDir with attributes
// Return IconTheme*
if (name == NULL)
return NULL;
gchar *file_name = NULL;
for (const GSList *location = get_icon_locations(); location; location = g_slist_next(location)) {
gchar *path = (gchar *)location->data;
file_name = g_build_filename(path, name, "index.theme", NULL);
if (!g_file_test(file_name, G_FILE_TEST_EXISTS)) {
g_free(file_name);
file_name = NULL;
}
if (file_name)
break;
}
IconTheme *theme = NULL;
if (file_name) {
theme = load_theme_from_index(file_name, name);
g_free(file_name);
}
return load_theme_from_fs(name, theme);
}
void free_icon_theme(IconTheme *theme)
{
if (!theme)
return;
free(theme->name);
theme->name = NULL;
free(theme->description);
theme->description = NULL;
for (GSList *l_inherits = theme->list_inherits; l_inherits; l_inherits = l_inherits->next) {
free(l_inherits->data);
}
g_slist_free(theme->list_inherits);
theme->list_inherits = NULL;
for (GSList *l_dir = theme->list_directories; l_dir; l_dir = l_dir->next) {
IconThemeDir *dir = (IconThemeDir *)l_dir->data;
free(dir->name);
free(l_dir->data);
}
g_slist_free(theme->list_directories);
theme->list_directories = NULL;
}
void free_themes(IconThemeWrapper *wrapper)
{
if (!wrapper)
return;
free(wrapper->icon_theme_name);
for (GSList *l = wrapper->themes; l; l = l->next) {
IconTheme *theme = (IconTheme *)l->data;
free_icon_theme(theme);
free(theme);
}
g_slist_free(wrapper->themes);
for (GSList *l = wrapper->themes_fallback; l; l = l->next) {
IconTheme *theme = (IconTheme *)l->data;
free_icon_theme(theme);
free(theme);
}
g_slist_free(wrapper->themes_fallback);
g_slist_free_full(wrapper->_queued, free);
free_cache(&wrapper->_cache);
free(wrapper);
}
void test_launcher_read_theme_file()
{
fprintf(stdout, YELLOW);
IconTheme *theme = load_theme("oxygen");
if (!theme) {
fprintf(stderr, "tint2: Could not load theme\n");
return;
}
fprintf(stderr, "tint2: Loaded theme: %s\n", theme->name);
GSList *item = theme->list_inherits;
while (item != NULL) {
fprintf(stderr, "tint2: Inherits:%s\n", (char *)item->data);
item = g_slist_next(item);
}
item = theme->list_directories;
while (item != NULL) {
IconThemeDir *dir = item->data;
fprintf(stderr, "tint2: Dir:%s Size=%d MinSize=%d MaxSize=%d Threshold=%d Type=%s\n",
dir->name,
dir->size,
dir->min_size,
dir->max_size,
dir->threshold,
dir->type == ICON_DIR_TYPE_FIXED ? "Fixed" : dir->type == ICON_DIR_TYPE_SCALABLE
? "Scalable"
: dir->type == ICON_DIR_TYPE_THRESHOLD ? "Threshold"
: "?????");
item = g_slist_next(item);
}
fprintf(stdout, RESET);
}
gboolean str_list_contains(const GSList *list, const char *value)
{
const GSList *item = list;
while (item != NULL) {
if (g_str_equal(item->data, value)) {
return TRUE;
}
item = g_slist_next(item);
}
return FALSE;
}
void load_themes_helper(const char *name, GSList **themes, GSList **queued)
{
if (str_list_contains(*queued, name))
return;
GSList *queue = g_slist_append(NULL, strdup(name));
*queued = g_slist_append(*queued, strdup(name));
// Load wrapper->themes
while (queue) {
char *queued_name = queue->data;
queue = g_slist_remove(queue, queued_name);
fprintf(stderr, "tint2: '%s',", queued_name);
IconTheme *theme = load_theme(queued_name);
if (theme != NULL) {
*themes = g_slist_append(*themes, theme);
GSList *item = theme->list_inherits;
int pos = 0;
while (item != NULL) {
char *parent = item->data;
if (!str_list_contains(*queued, parent)) {
queue = g_slist_insert(queue, strdup(parent), pos);
pos++;
*queued = g_slist_append(*queued, strdup(parent));
}
item = g_slist_next(item);
}
}
free(queued_name);
}
fprintf(stderr, "tint2: \n");
// Free the queue
GSList *l;
for (l = queue; l; l = l->next)
free(l->data);
g_slist_free(queue);
}
void load_default_theme(IconThemeWrapper *wrapper)
{
if (wrapper->_themes_loaded)
return;
fprintf(stderr, GREEN "tint2: Loading icon theme %s:" RESET "\n", wrapper->icon_theme_name);
load_themes_helper(wrapper->icon_theme_name, &wrapper->themes, &wrapper->_queued);
load_themes_helper("hicolor", &wrapper->themes, &wrapper->_queued);
wrapper->_themes_loaded = TRUE;
}
void load_fallbacks(IconThemeWrapper *wrapper)
{
if (wrapper->_fallback_loaded)
return;
fprintf(stderr, RED "tint2: Loading additional icon themes (this means your icon theme is incomplete)..." RESET "\n");
// Load wrapper->themes_fallback
const GSList *location;
for (location = get_icon_locations(); location; location = g_slist_next(location)) {
gchar *path = (gchar *)location->data;
GDir *d = g_dir_open(path, 0, NULL);
if (d) {
const gchar *name;
while ((name = g_dir_read_name(d))) {
gchar *file_name = g_build_filename(path, name, "index.theme", NULL);
if (g_file_test(file_name, G_FILE_TEST_EXISTS) && !g_file_test(file_name, G_FILE_TEST_IS_DIR)) {
load_themes_helper(name, &wrapper->themes_fallback, &wrapper->_queued);
}
g_free(file_name);
}
g_dir_close(d);
}
}
wrapper->_fallback_loaded = TRUE;
}
gchar *get_icon_cache_path()
{
return g_build_filename(g_get_user_cache_dir(), "tint2", "icon.cache", NULL);
}
void load_icon_cache(IconThemeWrapper *wrapper)
{
if (wrapper->_cache.loaded)
return;
fprintf(stderr, GREEN "tint2: Loading icon theme cache..." RESET "\n");
gchar *cache_path = get_icon_cache_path();
load_cache(&wrapper->_cache, cache_path);
g_free(cache_path);
}
void save_icon_cache(IconThemeWrapper *wrapper)
{
if (!wrapper || !wrapper->_cache.dirty)
return;
fprintf(stderr, GREEN "tint2: Saving icon theme cache..." RESET "\n");
gchar *cache_path = get_icon_cache_path();
save_cache(&wrapper->_cache, cache_path);
g_free(cache_path);
}
IconThemeWrapper *load_themes(const char *icon_theme_name)
{
IconThemeWrapper *wrapper = calloc(1, sizeof(IconThemeWrapper));
if (!icon_theme_name) {
fprintf(stderr, "tint2: Missing icon_theme_name theme, default to 'hicolor'.\n");
icon_theme_name = "hicolor";
}
wrapper->icon_theme_name = strdup(icon_theme_name);
return wrapper;
}
int directory_matches_size(IconThemeDir *dir, int size)
{
if (dir->type == ICON_DIR_TYPE_FIXED) {
return dir->size == size;
} else if (dir->type == ICON_DIR_TYPE_SCALABLE) {
return dir->min_size <= size && size <= dir->max_size;
} else /*if (dir->type == ICON_DIR_TYPE_THRESHOLD)*/ {
return dir->size - dir->threshold <= size && size <= dir->size + dir->threshold;
}
}
int directory_size_distance(IconThemeDir *dir, int size)
{
if (dir->type == ICON_DIR_TYPE_FIXED) {
return abs(dir->size - size);
} else if (dir->type == ICON_DIR_TYPE_SCALABLE) {
if (size < dir->min_size) {
return dir->min_size - size;
} else if (size > dir->max_size) {
return size - dir->max_size;
} else {
return 0;
}
} else /*if (dir->type == ICON_DIR_TYPE_THRESHOLD)*/ {
if (size < dir->size - dir->threshold) {
return dir->min_size - size;
} else if (size > dir->size + dir->threshold) {
return size - dir->max_size;
} else {
return 0;
}
}
}
gint compare_theme_directories(gconstpointer a, gconstpointer b, gpointer size_query)
{
int size = GPOINTER_TO_INT(size_query);
const IconThemeDir *da = (const IconThemeDir *)a;
const IconThemeDir *db = (const IconThemeDir *)b;
return abs(da->size - size) - abs(db->size - size);
}
char *get_icon_path_helper(GSList *themes, const char *icon_name, int size)
{
if (icon_name == NULL)
return NULL;
// If the icon_name is already a path and the file exists, return it
if (strstr(icon_name, "/") == icon_name) {
if (g_file_test(icon_name, G_FILE_TEST_EXISTS))
return strdup(icon_name);
else
return NULL;
}
const GSList *basenames = get_icon_locations();
GSList *extensions = NULL;
extensions = g_slist_append(extensions, ".png");
extensions = g_slist_append(extensions, ".xpm");
#ifdef HAVE_RSVG
extensions = g_slist_append(extensions, ".svg");
#endif
// if the icon name already contains one of the extensions (e.g. vlc.png instead of vlc) add a special entry
for (GSList *ext = extensions; ext; ext = g_slist_next(ext)) {
char *extension = (char *)ext->data;
if (strlen(icon_name) > strlen(extension) &&
strcmp(extension, icon_name + strlen(icon_name) - strlen(extension)) == 0) {
extensions = g_slist_append(extensions, "");
break;
}
}
GSList *theme;
// Best size match
// Contrary to the freedesktop spec, we are not choosing the closest icon in size, but the next larger icon
// otherwise the quality is usually crap (for size 22, if you can choose 16 or 32, you're better with 32)
// We do fallback to the closest size if we cannot find a larger or equal icon
// These 3 variables are used for keeping the closest size match
int minimal_size = INT_MAX;
char *best_file_name = NULL;
GSList *best_file_theme = NULL;
// These 3 variables are used for keeping the next larger match
int next_larger_size = -1;
char *next_larger = NULL;
GSList *next_larger_theme = NULL;
int file_name_size = 4096;
char *file_name = calloc(file_name_size, 1);
for (theme = themes; theme; theme = g_slist_next(theme)) {
if (debug_icons)
fprintf(stderr, "tint2: Searching theme: %s\n", ((IconTheme *)theme->data)->name);
((IconTheme *)theme->data)->list_directories =
g_slist_sort_with_data(((IconTheme *)theme->data)->list_directories,
compare_theme_directories,
GINT_TO_POINTER(size));
GSList *dir;
for (dir = ((IconTheme *)theme->data)->list_directories; dir; dir = g_slist_next(dir)) {
// Closest match
gboolean possible = directory_size_distance((IconThemeDir *)dir->data, size) < minimal_size &&
(!best_file_theme ? TRUE : theme == best_file_theme);
// Next larger match
possible = possible || (((IconThemeDir *)dir->data)->size >= size &&
(next_larger_size == -1 || ((IconThemeDir *)dir->data)->size < next_larger_size) &&
(!next_larger_theme ? 1 : theme == next_larger_theme));
if (!possible)
continue;
if (debug_icons)
fprintf(stderr, "tint2: Searching directory: %s\n", ((IconThemeDir *)dir->data)->name);
const GSList *base;
for (base = basenames; base; base = g_slist_next(base)) {
for (GSList *ext = extensions; ext; ext = g_slist_next(ext)) {
char *base_name = (char *)base->data;
char *theme_name = ((IconTheme *)theme->data)->name;
char *dir_name = ((IconThemeDir *)dir->data)->name;
char *extension = (char *)ext->data;
if (strlen(base_name) + strlen(theme_name) + strlen(dir_name) + strlen(icon_name) +
strlen(extension) + 100 >
file_name_size) {
file_name_size = strlen(base_name) + strlen(theme_name) + strlen(dir_name) + strlen(icon_name) +
strlen(extension) + 100;
file_name = realloc(file_name, file_name_size);
}
file_name[0] = 0;
// filename = directory/$(themename)/subdirectory/iconname.extension
sprintf(file_name, "%s/%s/%s/%s%s", base_name, theme_name, dir_name, icon_name, extension);
if (debug_icons)
fprintf(stderr, "tint2: Checking %s\n", file_name);
if (g_file_test(file_name, G_FILE_TEST_EXISTS)) {
if (debug_icons)
fprintf(stderr, "tint2: Found potential match: %s\n", file_name);
// Closest match
if (directory_size_distance((IconThemeDir *)dir->data, size) < minimal_size &&
(!best_file_theme ? 1 : theme == best_file_theme)) {
if (best_file_name) {
free(best_file_name);
best_file_name = NULL;
}
best_file_name = strdup(file_name);
minimal_size = directory_size_distance((IconThemeDir *)dir->data, size);
best_file_theme = theme;
if (debug_icons)
fprintf(stderr, "tint2: best_file_name = %s; minimal_size = %d\n", best_file_name, minimal_size);
}
// Next larger match
if (((IconThemeDir *)dir->data)->size >= size &&
(next_larger_size == -1 || ((IconThemeDir *)dir->data)->size < next_larger_size) &&
(!next_larger_theme ? 1 : theme == next_larger_theme)) {
if (next_larger) {
free(next_larger);
next_larger = NULL;
}
next_larger = strdup(file_name);
next_larger_size = ((IconThemeDir *)dir->data)->size;
next_larger_theme = theme;
if (debug_icons)
fprintf(stderr, "tint2: next_larger = %s; next_larger_size = %d\n", next_larger, next_larger_size);
}
}
}
}
}
}
free(file_name);
file_name = NULL;
if (next_larger) {
g_slist_free(extensions);
free(best_file_name);
return next_larger;
}
if (best_file_name) {
g_slist_free(extensions);
return best_file_name;
}
// Look in unthemed icons
{
if (debug_icons)
fprintf(stderr, "tint2: Searching unthemed icons\n");
for (const GSList *base = basenames; base; base = g_slist_next(base)) {
for (GSList *ext = extensions; ext; ext = g_slist_next(ext)) {
char *base_name = (char *)base->data;
char *extension = (char *)ext->data;
file_name = calloc(strlen(base_name) + strlen(icon_name) + strlen(extension) + 100, 1);
// filename = directory/iconname.extension
sprintf(file_name, "%s/%s%s", base_name, icon_name, extension);
if (debug_icons)
fprintf(stderr, "tint2: Checking %s\n", file_name);
if (g_file_test(file_name, G_FILE_TEST_EXISTS)) {
if (debug_icons)
fprintf(stderr, "tint2: Found %s\n", file_name);
g_slist_free(extensions);
return file_name;
} else {
free(file_name);
file_name = NULL;
}
}
}
}
g_slist_free(extensions);
return NULL;
}
char *get_icon_path_from_cache(IconThemeWrapper *wrapper, const char *icon_name, int size)
{
if (!wrapper || !icon_name || strlen(icon_name) == 0)
return NULL;
load_icon_cache(wrapper);
gchar *key = g_strdup_printf("%s\t%s\t%d", wrapper->icon_theme_name, icon_name, size);
const gchar *value = get_from_cache(&wrapper->_cache, key);
g_free(key);
if (!value) {
fprintf(stderr,
YELLOW "Icon path not found in cache: theme = %s, icon = %s, size = %d" RESET "\n",
wrapper->icon_theme_name,
icon_name,
size);
return NULL;
}
if (!g_file_test(value, G_FILE_TEST_EXISTS))
return NULL;
// fprintf(stderr, "tint2: Icon path found in cache: theme = %s, icon = %s, size = %d, path = %s\n",
// wrapper->icon_theme_name, icon_name, size, value);
return strdup(value);
}
void add_icon_path_to_cache(IconThemeWrapper *wrapper, const char *icon_name, int size, const char *path)
{
if (!wrapper || !icon_name || strlen(icon_name) == 0 || !path || strlen(path) == 0)
return;
fprintf(stderr,
"Adding icon path to cache: theme = %s, icon = %s, size = %d, path = %s\n",
wrapper->icon_theme_name,
icon_name,
size,
path);
load_icon_cache(wrapper);
gchar *key = g_strdup_printf("%s\t%s\t%d", wrapper->icon_theme_name, icon_name, size);
add_to_cache(&wrapper->_cache, key, path);
g_free(key);
}
char *get_icon_path(IconThemeWrapper *wrapper, const char *icon_name, int size, gboolean use_fallbacks)
{
if (debug_icons)
fprintf(stderr,
"Searching for icon %s with size %d, fallbacks %sallowed\n",
icon_name,
size,
use_fallbacks ? "" : "not ");
if (!wrapper) {
if (debug_icons)
fprintf(stderr,
"Icon search aborted, themes not loaded\n");
return NULL;
}
if (!icon_name || strlen(icon_name) == 0)
goto notfound;
char *path = get_icon_path_from_cache(wrapper, icon_name, size);
if (path) {
if (debug_icons)
fprintf(stderr,
"Icon found in cache: %s\n", path);
return path;
}
load_default_theme(wrapper);
icon_name = icon_name ? icon_name : DEFAULT_ICON;
path = get_icon_path_helper(wrapper->themes, icon_name, size);
if (path) {
if (debug_icons)
fprintf(stderr, "tint2: Icon found: %s\n", path);
add_icon_path_to_cache(wrapper, icon_name, size, path);
return path;
}
if (!use_fallbacks)
goto notfound;
fprintf(stderr, YELLOW "tint2: Icon not found in default theme: %s" RESET "\n", icon_name);
load_fallbacks(wrapper);
path = get_icon_path_helper(wrapper->themes_fallback, icon_name, size);
if (path) {
add_icon_path_to_cache(wrapper, icon_name, size, path);
return path;
}
notfound:
fprintf(stderr, RED "tint2: Could not find icon '%s', using default." RESET "\n", icon_name);
path = get_icon_path_helper(wrapper->themes, DEFAULT_ICON, size);
if (path)
return path;
path = get_icon_path_helper(wrapper->themes_fallback, DEFAULT_ICON, size);
return path;
}