src/launcher/launcher.c (raw)
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/************************************************************************** * Tint2 : launcher * * Copyright (C) 2010 (mrovi@interfete-web-club.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. **************************************************************************/ #include <string.h> #include <stdio.h> #include <cairo.h> #include <cairo-xlib.h> #include <pango/pangocairo.h> #include <unistd.h> #include <signal.h> #include <stdlib.h> #include "window.h" #include "server.h" #include "area.h" #include "panel.h" #include "taskbar.h" #include "launcher.h" int launcher_enabled; int launcher_max_icon_size; int launcher_tooltip_enabled; int launcher_alpha; int launcher_saturation; int launcher_brightness; char *icon_theme_name; XSettingsClient *xsettings_client; #define ICON_FALLBACK "application-x-executable" char *icon_path(Launcher *launcher, const char *icon_name, int size); void launcher_load_themes(Launcher *launcher); void free_desktop_entry(DesktopEntry *entry); int launcher_read_desktop_file(const char *path, DesktopEntry *entry); Imlib_Image scale_icon(Imlib_Image original, int icon_size); void free_icon(Imlib_Image icon); void free_icon_theme(IconTheme *theme); void default_launcher() { launcher_enabled = 0; launcher_max_icon_size = 0; launcher_tooltip_enabled = 0; launcher_alpha = 100; launcher_saturation = 0; launcher_brightness = 0; icon_theme_name = 0; xsettings_client = NULL; } void init_launcher() { if (launcher_enabled) { // if XSETTINGS manager running, tint2 read the icon_theme_name. xsettings_client = xsettings_client_new(server.dsp, server.screen, xsettings_notify_cb, NULL, NULL); } } void init_launcher_panel(void *p) { Panel *panel =(Panel*)p; Launcher *launcher = &panel->launcher; launcher->area.parent = p; launcher->area.panel = p; launcher->area._draw_foreground = NULL; launcher->area.size_mode = SIZE_BY_CONTENT; launcher->area._resize = resize_launcher; launcher->area.resize = 1; launcher->area.redraw = 1; if (launcher->area.bg == 0) launcher->area.bg = &g_array_index(backgrounds, Background, 0); // check consistency if (launcher->list_apps == NULL) return; launcher->area.on_screen = 1; panel_refresh = 1; launcher_load_themes(launcher); launcher_load_icons(launcher); } void cleanup_launcher() { int i; if (xsettings_client) xsettings_client_destroy(xsettings_client); for (i = 0 ; i < nb_panel ; i++) { Panel *panel = &panel1[i]; Launcher *launcher = &panel->launcher; cleanup_launcher_theme(launcher); } g_slist_free_full(panel_config.launcher.list_apps, free); panel_config.launcher.list_apps = NULL; free(icon_theme_name); icon_theme_name = 0; launcher_enabled = 0; } void cleanup_launcher_theme(Launcher *launcher) { free_area(&launcher->area); GSList *l; for (l = launcher->list_icons; l ; l = l->next) { LauncherIcon *launcherIcon = (LauncherIcon*)l->data; if (launcherIcon) { free_icon(launcherIcon->icon_scaled); free_icon(launcherIcon->icon_original); free(launcherIcon->icon_name); free(launcherIcon->icon_path); free(launcherIcon->cmd); free(launcherIcon->icon_tooltip); } free(launcherIcon); } g_slist_free(launcher->list_icons); for (l = launcher->list_themes; l ; l = l->next) { IconTheme *theme = (IconTheme*) l->data; free_icon_theme(theme); free(theme); } g_slist_free(launcher->list_themes); launcher->list_icons = launcher->list_themes = NULL; } int resize_launcher(void *obj) { Launcher *launcher = obj; GSList *l; int count, icon_size; int icons_per_column=1, icons_per_row=1, marging=0; if (panel_horizontal) icon_size = launcher->area.height; else icon_size = launcher->area.width; icon_size = icon_size - (2 * launcher->area.bg->border.width) - (2 * launcher->area.paddingy); if (launcher_max_icon_size > 0 && icon_size > launcher_max_icon_size) icon_size = launcher_max_icon_size; // Resize icons if necessary for (l = launcher->list_icons; l ; l = l->next) { LauncherIcon *launcherIcon = (LauncherIcon *)l->data; if (launcherIcon->icon_size != icon_size || !launcherIcon->icon_original) { launcherIcon->icon_size = icon_size; launcherIcon->area.width = launcherIcon->icon_size; launcherIcon->area.height = launcherIcon->icon_size; // Get the path for an icon file with the new size char *new_icon_path = icon_path(launcher, launcherIcon->icon_name, launcherIcon->icon_size); if (!new_icon_path) { // Draw a blank icon free_icon(launcherIcon->icon_original); launcherIcon->icon_original = NULL; free_icon(launcherIcon->icon_scaled); launcherIcon->icon_scaled = NULL; new_icon_path = icon_path(launcher, ICON_FALLBACK, launcherIcon->icon_size); if (new_icon_path) { launcherIcon->icon_original = imlib_load_image(new_icon_path); fprintf(stderr, "launcher.c %d: Using icon %s\n", __LINE__, new_icon_path); free(new_icon_path); } launcherIcon->icon_scaled = scale_icon(launcherIcon->icon_original, icon_size); continue; } if (launcherIcon->icon_path && strcmp(new_icon_path, launcherIcon->icon_path) == 0) { // If it's the same file just rescale free_icon(launcherIcon->icon_scaled); launcherIcon->icon_scaled = scale_icon(launcherIcon->icon_original, icon_size); free(new_icon_path); fprintf(stderr, "launcher.c %d: Using icon %s\n", __LINE__, launcherIcon->icon_path); } else { // Free the old files free_icon(launcherIcon->icon_original); free_icon(launcherIcon->icon_scaled); // Load the new file and scale launcherIcon->icon_original = imlib_load_image(new_icon_path); launcherIcon->icon_scaled = scale_icon(launcherIcon->icon_original, launcherIcon->icon_size); free(launcherIcon->icon_path); launcherIcon->icon_path = new_icon_path; fprintf(stderr, "launcher.c %d: Using icon %s\n", __LINE__, launcherIcon->icon_path); } } } count = g_slist_length(launcher->list_icons); if (panel_horizontal) { if (!count) launcher->area.width = 0; else { int height = launcher->area.height - 2*launcher->area.bg->border.width - 2*launcher->area.paddingy; // here icons_per_column always higher than 0 icons_per_column = (height+launcher->area.paddingx) / (icon_size+launcher->area.paddingx); marging = height - (icons_per_column-1)*(icon_size+launcher->area.paddingx) - icon_size; icons_per_row = count / icons_per_column + (count%icons_per_column != 0); launcher->area.width = (2 * launcher->area.bg->border.width) + (2 * launcher->area.paddingxlr) + (icon_size * icons_per_row) + ((icons_per_row-1) * launcher->area.paddingx); } } else { if (!count) launcher->area.height = 0; else { int width = launcher->area.width - 2*launcher->area.bg->border.width - 2*launcher->area.paddingy; // here icons_per_row always higher than 0 icons_per_row = (width+launcher->area.paddingx) / (icon_size+launcher->area.paddingx); marging = width - (icons_per_row-1)*(icon_size+launcher->area.paddingx) - icon_size; icons_per_column = count / icons_per_row+ (count%icons_per_row != 0); launcher->area.height = (2 * launcher->area.bg->border.width) + (2 * launcher->area.paddingxlr) + (icon_size * icons_per_column) + ((icons_per_column-1) * launcher->area.paddingx); } } int i, posx, posy; int start = launcher->area.bg->border.width + launcher->area.paddingy + marging/2; if (panel_horizontal) { posy = start; posx = launcher->area.bg->border.width + launcher->area.paddingxlr; } else { posx = start; posy = launcher->area.bg->border.width + launcher->area.paddingxlr; } for (i=1, l = launcher->list_icons; l ; i++, l = l->next) { LauncherIcon *launcherIcon = (LauncherIcon*)l->data; launcherIcon->y = posy; launcherIcon->x = posx; //printf("launcher %d : %d,%d\n", i, posx, posy); if (panel_horizontal) { if (i % icons_per_column) posy += icon_size + launcher->area.paddingx; else { posy = start; posx += (icon_size + launcher->area.paddingx); } } else { if (i % icons_per_row) posx += icon_size + launcher->area.paddingx; else { posx = start; posy += (icon_size + launcher->area.paddingx); } } } return 1; } // Here we override the default layout of the icons; normally Area layouts its children // in a stack; we need to layout them in a kind of table void launcher_icon_on_change_layout(void *obj) { LauncherIcon *launcherIcon = (LauncherIcon*)obj; launcherIcon->area.posy = ((Area*)launcherIcon->area.parent)->posy + launcherIcon->y; launcherIcon->area.posx = ((Area*)launcherIcon->area.parent)->posx + launcherIcon->x; } const char* launcher_icon_get_tooltip_text(void *obj) { LauncherIcon *launcherIcon = (LauncherIcon*)obj; return launcherIcon->icon_tooltip; } void draw_launcher_icon(void *obj, cairo_t *c) { LauncherIcon *launcherIcon = (LauncherIcon*)obj; Imlib_Image icon_scaled = launcherIcon->icon_scaled; // Render imlib_context_set_image (icon_scaled); if (server.real_transparency) { render_image(launcherIcon->area.pix, 0, 0, imlib_image_get_width(), imlib_image_get_height() ); } else { imlib_context_set_drawable(launcherIcon->area.pix); imlib_render_image_on_drawable (0, 0); } } Imlib_Image scale_icon(Imlib_Image original, int icon_size) { Imlib_Image icon_scaled; if (original) { imlib_context_set_image (original); icon_scaled = imlib_create_cropped_scaled_image(0, 0, imlib_image_get_width(), imlib_image_get_height(), icon_size, icon_size); imlib_context_set_image (icon_scaled); imlib_image_set_has_alpha(1); DATA32* data = imlib_image_get_data(); adjust_asb(data, icon_size, icon_size, launcher_alpha, (float)launcher_saturation/100, (float)launcher_brightness/100); imlib_image_put_back_data(data); } else { icon_scaled = imlib_create_image(icon_size, icon_size); imlib_context_set_image (icon_scaled); imlib_context_set_color(255, 255, 255, 255); imlib_image_fill_rectangle(0, 0, icon_size, icon_size); } return icon_scaled; } void free_icon(Imlib_Image icon) { if (icon) { imlib_context_set_image(icon); imlib_free_image(); } } void launcher_action(LauncherIcon *icon) { char *cmd = malloc(strlen(icon->cmd) + 10); sprintf(cmd, "(%s&)", icon->cmd); tint_exec(cmd); free(cmd); } /***************** Freedesktop app.desktop and icon theme handling *********************/ /* http://standards.freedesktop.org/desktop-entry-spec/ */ /* http://standards.freedesktop.org/icon-theme-spec/ */ // Splits line at first '=' and returns 1 if successful, and parts are not empty // key and value point to the parts int parse_dektop_line(char *line, char **key, char **value) { char *p; int found = 0; *key = line; for (p = line; *p; p++) { if (*p == '=') { *value = p + 1; *p = 0; found = 1; break; } } if (!found) return 0; if (found && (strlen(*key) == 0 || strlen(*value) == 0)) return 0; return 1; } int parse_theme_line(char *line, char **key, char **value) { return parse_dektop_line(line, key, value); } void expand_exec(DesktopEntry *entry, const char *path) { // Expand % in exec // %i -> --icon Icon // %c -> Name // %k -> path if (entry->exec) { char *exec2 = malloc(strlen(entry->exec) + (entry->name ? strlen(entry->name) : 1) + (entry->icon ? strlen(entry->icon) : 1) + 100); char *p, *q; // p will never point to an escaped char for (p = entry->exec, q = exec2; *p; p++, q++) { *q = *p; // Copy if (*p == '\\') { p++, q++; // Copy the escaped char if (*p == '%') // For % we delete the backslash, i.e. write % over it q--; *q = *p; if (!*p) break; continue; } if (*p == '%') { p++; if (!*p) break; if (*p == 'i' && entry->icon != NULL) { sprintf(q, "--icon '%s'", entry->icon); q += strlen("--icon ''"); q += strlen(entry->icon); q--; // To balance the q++ in the for } else if (*p == 'c' && entry->name != NULL) { sprintf(q, "'%s'", entry->name); q += strlen("''"); q += strlen(entry->name); q--; // To balance the q++ in the for } else if (*p == 'c') { sprintf(q, "'%s'", path); q += strlen("''"); q += strlen(path); q--; // To balance the q++ in the for } else { // We don't care about other expansions q--; // Delete the last % from q } continue; } } *q = '\0'; free(entry->exec); entry->exec = exec2; } } //TODO Use UTF8 when parsing the file int launcher_read_desktop_file(const char *path, DesktopEntry *entry) { FILE *fp; char *line = NULL; size_t line_size; char *key, *value; entry->name = entry->icon = entry->exec = NULL; if ((fp = fopen(path, "rt")) == NULL) { fprintf(stderr, "Could not open file %s\n", path); return 0; } int inside_desktop_entry = 0; while (getline(&line, &line_size, fp) >= 0) { int len = strlen(line); if (len == 0) continue; line[len - 1] = '\0'; if (line[0] == '[') { inside_desktop_entry = (strcmp(line, "[Desktop Entry]") == 0); } if (inside_desktop_entry && parse_dektop_line(line, &key, &value)) { if (!entry->name && strcmp(key, "Name") == 0) { entry->name = strdup(value); } else if (!entry->exec && strcmp(key, "Exec") == 0) { entry->exec = strdup(value); } else if (!entry->icon && strcmp(key, "Icon") == 0) { entry->icon = strdup(value); } } } fclose (fp); // From this point: // entry->name, entry->icon, entry->exec will never be empty strings (can be NULL though) expand_exec(entry, path); free(line); return 1; } void free_desktop_entry(DesktopEntry *entry) { free(entry->name); free(entry->icon); free(entry->exec); } void test_launcher_read_desktop_file() { fprintf(stdout, "\033[1;33m"); DesktopEntry entry; launcher_read_desktop_file("/usr/share/applications/firefox.desktop", &entry); printf("Name:%s Icon:%s Exec:%s\n", entry.name, entry.icon, entry.exec); fprintf(stdout, "\033[0m"); } //TODO Use UTF8 when parsing the file IconTheme *load_theme(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* IconTheme *theme; char *file_name; FILE *f; char *line = NULL; size_t line_size; if (name == NULL) return NULL; file_name = g_build_filename(g_get_home_dir(), ".icons", name, "index.theme", NULL); if (!g_file_test(file_name, G_FILE_TEST_EXISTS)) { g_free (file_name); file_name = g_build_filename("/usr/share/icons", name, "index.theme", NULL); if (!g_file_test(file_name, G_FILE_TEST_EXISTS)) { g_free (file_name); file_name = g_build_filename("/usr/share/pixmaps", name, "index.theme", NULL); if (!g_file_test(file_name, G_FILE_TEST_EXISTS)) { g_free (file_name); file_name = NULL; } } } if (!file_name) { return NULL; } if ((f = fopen(file_name, "rt")) == NULL) { fprintf(stderr, "Could not open theme '%s'\n", file_name); return NULL; } g_free (file_name); theme = calloc(1, sizeof(IconTheme)); theme->name = strdup(name); theme->list_inherits = NULL; theme->list_directories = NULL; 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", ¤t_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", ¤t_dir->max_size); } else if (strcmp(key, "MinSize") == 0) { // value is like 24 sscanf(value, "%d", ¤t_dir->min_size); } else if (strcmp(key, "Threshold") == 0) { // value is like 2 sscanf(value, "%d", ¤t_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; } } else if (strcmp(key, "Context") == 0) { // usual values: Actions, Applications, Devices, FileSystems, MimeTypes current_dir->context = strdup(value); } } } 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 free_icon_theme(IconTheme *theme) { free(theme->name); GSList *l_inherits; for (l_inherits = theme->list_inherits; l_inherits ; l_inherits = l_inherits->next) { free(l_inherits->data); } GSList *l_dir; for (l_dir = theme->list_directories; l_dir ; l_dir = l_dir->next) { IconThemeDir *dir = (IconThemeDir *)l_dir->data; free(dir->name); free(dir->context); free(l_dir->data); } } 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 list_icons list void launcher_load_icons(Launcher *launcher) { // Load apps (.desktop style launcher items) GSList* app = launcher->list_apps; while (app != NULL) { DesktopEntry entry; launcher_read_desktop_file(app->data, &entry); if (entry.exec) { LauncherIcon *launcherIcon = calloc(1, sizeof(LauncherIcon)); launcherIcon->area.parent = launcher; launcherIcon->area.panel = launcher->area.panel; launcherIcon->area._draw_foreground = draw_launcher_icon; launcherIcon->area.size_mode = SIZE_BY_CONTENT; launcherIcon->area._resize = NULL; launcherIcon->area.resize = 0; launcherIcon->area.redraw = 1; launcherIcon->area.bg = &g_array_index(backgrounds, Background, 0); launcherIcon->area.on_screen = 1; launcherIcon->area._on_change_layout = launcher_icon_on_change_layout; if (launcher_tooltip_enabled) launcherIcon->area._get_tooltip_text = launcher_icon_get_tooltip_text; else launcherIcon->area._get_tooltip_text = NULL; launcherIcon->is_app_desktop = 1; launcherIcon->cmd = strdup(entry.exec); launcherIcon->icon_name = entry.icon ? strdup(entry.icon) : strdup(ICON_FALLBACK); launcherIcon->icon_size = 1; launcherIcon->icon_tooltip = entry.name ? strdup(entry.name) : strdup(entry.exec); free_desktop_entry(&entry); launcher->list_icons = g_slist_append(launcher->list_icons, launcherIcon); add_area(&launcherIcon->area); } app = g_slist_next(app); } } // Populates the list_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 if (!icon_theme_name) { fprintf(stderr, "Missing launcher theme, default to 'hicolor'.\n"); icon_theme_name = strdup("hicolor"); } else { fprintf(stderr, "Loading %s. Icon theme :", icon_theme_name); } GSList *queue = g_slist_append(NULL, strdup(icon_theme_name)); GSList *queued = g_slist_append(NULL, strdup(icon_theme_name)); 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); fprintf(stderr, " '%s',", name); IconTheme *theme = load_theme(name); if (theme != NULL) { launcher->list_themes = g_slist_append(launcher->list_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); } } } fprintf(stderr, "\n"); // 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; char *home_icons = g_build_filename(g_get_home_dir(), ".icons", NULL); basenames = g_slist_append(basenames, home_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"); // if the icon name already contains one of the extensions (e.g. vlc.png instead of vlc) add a special entry GSList *ext; for (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; // Stage 1: exact size match // the theme must have a higher priority than having an exact size match, so we will just use // the code that searches for the best size match (it will find the exact size match if one exists) /* for (theme = launcher->list_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("found exact: %s\n", file_name); //printf("checking %s\n", file_name); if (g_file_test(file_name, G_FILE_TEST_EXISTS)) { g_slist_free(basenames); g_slist_free(extensions); g_free(home_icons); return file_name; } else { free(file_name); file_name = NULL; } } } } } } g_free (file_name); */ // 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 // 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; for (theme = launcher->list_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)) { //printf("found: %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; //printf("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; //printf("next_larger = %s; next_larger_size = %d\n", next_larger, next_larger_size); } } free(file_name); } } } } if (next_larger) { g_slist_free(basenames); g_slist_free(extensions); free(best_file_name); g_free(home_icons); return next_larger; } if (best_file_name) { g_slist_free(basenames); g_slist_free(extensions); g_free(home_icons); 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); g_free(home_icons); return file_name; } else { free(file_name); file_name = NULL; } } } } fprintf(stderr, "Could not find icon %s\n", icon_name); g_slist_free(basenames); g_slist_free(extensions); g_free(home_icons); return NULL; } |