+void test_launcher_read_theme_file()
+{
+ fprintf(stdout, "\033[1;33m");
+ IconTheme *theme = load_theme("oxygen");
+ if (!theme) {
+ printf("Could not load theme\n");
+ return;
+ }
+ printf("Loaded theme: %s\n", theme->name);
+ GSList* item = theme->list_inherits;
+ while (item != NULL)
+ {
+ printf("Inherits:%s\n", (char*)item->data);
+ item = g_slist_next(item);
+ }
+ item = theme->list_directories;
+ while (item != NULL)
+ {
+ IconThemeDir *dir = item->data;
+ printf("Dir:%s Size=%d MinSize=%d MaxSize=%d Threshold=%d Type=%s Context=%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" : "?????",
+ dir->context);
+ item = g_slist_next(item);
+ }
+ fprintf(stdout, "\033[0m");
+}
+
+// Populates the icon_themes list
+void launcher_load_themes(Launcher *launcher)
+{
+ // load the user theme, all the inherited themes recursively (DFS), and the hicolor theme
+ // avoid inheritance loops
+
+ GSList *queue = NULL;
+ GSList *queued = NULL;
+
+ GSList* icon_theme_name_item;
+ for (icon_theme_name_item = launcher->icon_theme_names; icon_theme_name_item; icon_theme_name_item = g_slist_next(icon_theme_name_item)) {
+ int duplicate = 0;
+ GSList* queued_item = queued;
+ while (queued_item != NULL) {
+ if (strcmp(queued_item->data, icon_theme_name_item->data) == 0) {
+ duplicate = 1;
+ break;
+ }
+ queued_item = g_slist_next(queued_item);
+ }
+ if (!duplicate) {
+ queue = g_slist_append(queue, strdup(icon_theme_name_item->data));
+ queued = g_slist_append(queued, strdup(icon_theme_name_item->data));
+ }
+ }
+
+ int hicolor_loaded = 0;
+ while (queue || !hicolor_loaded) {
+ if (!queue) {
+ GSList* queued_item = queued;
+ while (queued_item != NULL) {
+ if (strcmp(queued_item->data, "hicolor") == 0) {
+ hicolor_loaded = 1;
+ break;
+ }
+ queued_item = g_slist_next(queued_item);
+ }
+ if (hicolor_loaded)
+ break;
+ queue = g_slist_append(queue, strdup("hicolor"));
+ queued = g_slist_append(queued, strdup("hicolor"));
+ }
+
+ char *name = queue->data;
+ queue = g_slist_remove(queue, name);
+
+ IconTheme *theme = load_theme(name);
+ if (theme != NULL) {
+ launcher->icon_themes = g_slist_append(launcher->icon_themes, theme);
+
+ GSList* item = theme->list_inherits;
+ int pos = 0;
+ while (item != NULL)
+ {
+ char *parent = item->data;
+ int duplicate = 0;
+ GSList* queued_item = queued;
+ while (queued_item != NULL) {
+ if (strcmp(queued_item->data, parent) == 0) {
+ duplicate = 1;
+ break;
+ }
+ queued_item = g_slist_next(queued_item);
+ }
+ if (!duplicate) {
+ queue = g_slist_insert(queue, strdup(parent), pos);
+ pos++;
+ queued = g_slist_append(queued, strdup(parent));
+ }
+ item = g_slist_next(item);
+ }
+ }
+ }
+
+ // Free the queue
+ GSList *l;
+ for (l = queue; l ; l = l->next)
+ free(l->data);
+ g_slist_free(queue);
+ for (l = queued; l ; l = l->next)
+ free(l->data);
+ g_slist_free(queued);
+}
+
+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;
+ }
+ }
+}
+
+// Returns the full path to an icon file (or NULL) given the icon name
+char *icon_path(Launcher *launcher, 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;
+ }
+
+ GSList *basenames = NULL;
+ basenames = g_slist_append(basenames, "~/.icons");
+ basenames = g_slist_append(basenames, "/usr/share/icons");
+ basenames = g_slist_append(basenames, "/usr/share/pixmaps");
+
+ GSList *extensions = NULL;
+ extensions = g_slist_append(extensions, "png");
+ extensions = g_slist_append(extensions, "xpm");
+
+ // Stage 1: exact size match
+ GSList *theme;
+ for (theme = launcher->icon_themes; theme; theme = g_slist_next(theme)) {
+ GSList *dir;
+ for (dir = ((IconTheme*)theme->data)->list_directories; dir; dir = g_slist_next(dir)) {
+ if (directory_matches_size((IconThemeDir*)dir->data, size)) {
+ GSList *base;
+ for (base = basenames; base; base = g_slist_next(base)) {
+ GSList *ext;
+ for (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;
+ char *file_name = malloc(strlen(base_name) + strlen(theme_name) +
+ strlen(dir_name) + strlen(icon_name) + strlen(extension) + 100);
+ // filename = directory/$(themename)/subdirectory/iconname.extension
+ sprintf(file_name, "%s/%s/%s/%s.%s", base_name, theme_name, dir_name, icon_name, extension);
+ //printf("checking %s\n", file_name);
+ if (g_file_test(file_name, G_FILE_TEST_EXISTS)) {
+ g_slist_free(basenames);
+ g_slist_free(extensions);
+ return file_name;
+ } else {
+ free(file_name);
+ file_name = NULL;
+ }
+ }
+ }
+ }
+ }
+ }
+
+ // Stage 2: best size match
+ // Contrary to the freedesktop spec, we are not choosing the closest icon in size, but the next larger icon
+ // otherwise the quality is usually crap (for size 22, if you can choose 16 or 32, you're better with 32)
+ // We do fallback to the closest size if we cannot find a larger or equal icon
+ int minimal_size = INT_MAX;
+ char *best_file_name = NULL;
+ int next_larger_size = -1;
+ char *next_larger = NULL;
+ for (theme = launcher->icon_themes; theme; theme = g_slist_next(theme)) {
+ GSList *dir;
+ for (dir = ((IconTheme*)theme->data)->list_directories; dir; dir = g_slist_next(dir)) {
+ GSList *base;
+ for (base = basenames; base; base = g_slist_next(base)) {
+ GSList *ext;
+ for (ext = extensions; ext; ext = g_slist_next(ext)) {
+ char *base_name = (char*) base->data;
+ char *theme_name = ((IconTheme*)theme->data)->name;
+ char *dir_name = ((IconThemeDir*)dir->data)->name;
+ char *extension = (char*) ext->data;
+ char *file_name = malloc(strlen(base_name) + strlen(theme_name) +
+ strlen(dir_name) + strlen(icon_name) + strlen(extension) + 100);
+ // filename = directory/$(themename)/subdirectory/iconname.extension
+ sprintf(file_name, "%s/%s/%s/%s.%s", base_name, theme_name, dir_name, icon_name, extension);
+ if (g_file_test(file_name, G_FILE_TEST_EXISTS)) {
+ if (directory_size_distance((IconThemeDir*)dir->data, size) < minimal_size) {
+ 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);
+ }
+ if (((IconThemeDir*)dir->data)->size >= size && (next_larger_size == -1 || ((IconThemeDir*)dir->data)->size < next_larger_size)) {
+ if (next_larger) {
+ free(next_larger);
+ next_larger = NULL;
+ }
+ next_larger = strdup(file_name);
+ next_larger_size = ((IconThemeDir*)dir->data)->size;
+ }
+ }
+ free(file_name);
+ }
+ }
+ }
+ }
+ if (next_larger) {
+ g_slist_free(basenames);
+ g_slist_free(extensions);
+ free(best_file_name);
+ return next_larger;
+ }
+ if (best_file_name) {
+ g_slist_free(basenames);
+ g_slist_free(extensions);
+ return best_file_name;
+ }
+
+ // Stage 3: look in unthemed icons
+ {
+ GSList *base;
+ for (base = basenames; base; base = g_slist_next(base)) {
+ GSList *ext;
+ for (ext = extensions; ext; ext = g_slist_next(ext)) {
+ char *base_name = (char*) base->data;
+ char *extension = (char*) ext->data;
+ char *file_name = malloc(strlen(base_name) + strlen(icon_name) +
+ strlen(extension) + 100);
+ // filename = directory/iconname.extension
+ sprintf(file_name, "%s/%s.%s", base_name, icon_name, extension);
+ //printf("checking %s\n", file_name);
+ if (g_file_test(file_name, G_FILE_TEST_EXISTS)) {
+ g_slist_free(basenames);
+ g_slist_free(extensions);
+ return file_name;
+ } else {
+ free(file_name);
+ file_name = NULL;
+ }
+ }
+ }
+ }
+
+ fprintf(stderr, "Could not find icon %s\n", icon_name);
+
+ return NULL;
+}