forked from AuroraMiddleware/gtk
3915 lines
111 KiB
C
3915 lines
111 KiB
C
/* GtkIconTheme - a loader for icon themes
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* gtk-icon-theme.c Copyright (C) 2002, 2003 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <string.h>
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#include <stdlib.h>
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#include <math.h>
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#include <glib.h>
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#include <glib/gstdio.h>
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#ifdef G_OS_WIN32
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#ifndef S_ISDIR
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#define S_ISDIR(mode) ((mode)&_S_IFDIR)
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#endif
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <shellapi.h>
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#include "win32/gdkwin32.h"
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#endif /* G_OS_WIN32 */
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#include "gtkiconthemeprivate.h"
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#include "gtkcsspalettevalueprivate.h"
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#include "gtkcsscolorvalueprivate.h"
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#include "gtkdebug.h"
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#include "gtkiconcacheprivate.h"
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#include "gtkintl.h"
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#include "gtkmain.h"
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#include "gtksettingsprivate.h"
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#include "gtkstylecontextprivate.h"
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#include "gtkprivate.h"
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#include "gtksnapshot.h"
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#include "gdkpixbufutilsprivate.h"
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#include "gdk/gdktextureprivate.h"
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#include "gdk/gdkprofilerprivate.h"
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/* this is in case round() is not provided by the compiler,
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* such as in the case of C89 compilers, like MSVC
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*/
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#include "fallback-c89.c"
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/**
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* SECTION:gtkicontheme
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* @Short_description: Looking up icons by name
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* @Title: GtkIconTheme
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*
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* #GtkIconTheme provides a facility for looking up icons by name
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* and size. The main reason for using a name rather than simply
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* providing a filename is to allow different icons to be used
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* depending on what “icon theme” is selected
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* by the user. The operation of icon themes on Linux and Unix
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* follows the [Icon Theme Specification](http://www.freedesktop.org/Standards/icon-theme-spec)
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* There is a fallback icon theme, named `hicolor`, where applications
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* should install their icons, but additional icon themes can be installed
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* as operating system vendors and users choose.
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*
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* In many cases, named themes are used indirectly, via #GtkImage
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* rather than directly, but looking up icons
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* directly is also simple. The #GtkIconTheme object acts
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* as a database of all the icons in the current theme. You
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* can create new #GtkIconTheme objects, but it’s much more
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* efficient to use the standard icon theme of the #GtkWidget
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* so that the icon information is shared with other people
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* looking up icons.
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* |[<!-- language="C" -->
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* GtkIconTheme *icon_theme;
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* GtkIconPaintable *icon;
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* GdkPaintable *paintable;
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*
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* icon_theme = gtk_icon_theme_get_for_display (gtk_widget_get_display (my_widget));
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* icon = gtk_icon_theme_lookup_icon (icon_theme,
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* "my-icon-name", // icon name
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* 48, // icon size
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* 1, // scale
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* 0, // flags);
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* paintable = GDK_PAINTABLE (icon);
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* // Use the paintable
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* g_object_unref (icon);
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* ]|
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*/
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/* There are a lot of icon names (around 1000 in adwaita and 1000 in
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* hicolor), and the are short, which makes individual allocations
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* wasteful (i.e. glibc malloc min chunk size is 32 byte), so we and
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* fragmenting. Instead we store the string in larger chunks of memory
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* for the string data, avoiding duplicates via a hash.
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*
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* Additionally, doing a up-front hash lookup to intern an
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* icon name allows further hash lookups (for each directory in
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* the theme) to use g_direct_hash/equal() which makes those
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* lookups faster.
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*/
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typedef struct _GtkStringSetChunk GtkStringSetChunk;
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/* This size allows a malloc to be one page, including the next_chunk
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pointer and the malloc overhead, which is a good size (one page) */
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#define STRING_SET_CHUNK_SIZE (4096 - 2 *sizeof (gpointer))
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struct _GtkStringSetChunk {
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GtkStringSetChunk *next;
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char data[STRING_SET_CHUNK_SIZE];
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};
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struct _GtkStringSet {
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GHashTable *hash;
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GtkStringSetChunk *chunks;
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int used_in_chunk;
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};
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static void
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gtk_string_set_init (GtkStringSet *set)
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{
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set->hash = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, NULL);
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set->chunks = NULL;
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set->used_in_chunk = STRING_SET_CHUNK_SIZE; /* To trigger a grow directly */
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}
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static void
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gtk_string_set_destroy (GtkStringSet *set)
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{
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GtkStringSetChunk *next, *chunk;
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g_hash_table_destroy (set->hash);
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for (chunk = set->chunks; chunk != NULL; chunk = next)
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{
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next = chunk->next;
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g_free (chunk);
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}
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}
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static const char *
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gtk_string_set_lookup (GtkStringSet *set,
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const char *string)
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{
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return g_hash_table_lookup (set->hash, string);
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}
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static void
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gtk_string_set_list (GtkStringSet *set,
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GHashTable *result)
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{
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GHashTableIter iter;
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gpointer key;
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g_hash_table_iter_init (&iter, set->hash);
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while (g_hash_table_iter_next (&iter, &key, NULL))
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{
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char *string = key;
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g_hash_table_insert (result, string, string);
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}
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}
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const char *
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gtk_string_set_add (GtkStringSet *set,
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const char *string)
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{
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const char *intern = g_hash_table_lookup (set->hash, string);
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if (intern == NULL)
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{
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GtkStringSetChunk *chunk;
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int string_len = strlen (string) + 1;
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if (string_len > STRING_SET_CHUNK_SIZE - set->used_in_chunk)
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{
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gsize chunk_size = sizeof (GtkStringSetChunk);
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/* Doesn't fit in existing chunk, need a new one. Normally
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* we allocate one of regular size, but in the case the
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* string is longer than CHUNK_SIZE that we allocate enough
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* for it to fit this one string. */
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if (string_len > STRING_SET_CHUNK_SIZE)
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chunk_size += string_len - STRING_SET_CHUNK_SIZE;
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chunk = g_malloc (chunk_size);
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chunk->next = set->chunks;
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set->chunks = chunk;
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set->used_in_chunk = 0;
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}
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else
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{
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/* We fit in existing chunk */
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chunk = set->chunks;
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}
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intern = &chunk->data[set->used_in_chunk];
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memcpy ((char *)intern, string, string_len);
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set->used_in_chunk += string_len;
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g_hash_table_insert (set->hash, (char *)intern, (char *)intern);
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}
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return intern;
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}
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/* Threading:
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*
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* GtkIconTheme is partially threadsafe, construction and setup can
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* only be done on the main thread (and this is not really fixable
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* since it uses other things like GdkDisplay and GSettings and
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* signals on those. However, once the icon theme is set up on the
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* main thread we can pass it to a thread and do basic lookups on
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* it. This will cause any parallel calls on the main thread (or any
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* other thread) to block until its done, but most of the time
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* lookups are fast. The only time its not fast is when we need
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* to rescan the theme, but then it would be slow if we didn't block
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* and did the rescan ourselves anyway.
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*
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* All private functions that take a GtkIconTheme (or one of its
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* private data types (like IconThemeDir, UnthemedIcon, etc) arg are
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* expected to be called with the icon theme lock held, unless the
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* funcion has a _unlocked suffix. Any similar function that must be
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* called on the main thread, will have a _mainthread suffix.
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*
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* So the rules for such functions are:
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*
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* * non-_unlocked function cannot call _unlocked functions.
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* * _unlocked must lock before calling a non-_unlocked.
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* * non-_mainthread cannot call _mainthread.
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* * Public APIs must lock before calling a non-_unlocked private function
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* * Public APIs that never call _mainthread are threadsafe.
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*
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* There is a global "icon_cache" G_LOCK, which protects icon_cache
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* and lru_cache in GtkIconTheme as well as its reverse pointer
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* GtkIcon->in_cache. This is sometimes taken with the theme lock held
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* (from the theme side) and sometimes not (from the icon side),
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* but we never take another lock after taking it, so this is safe.
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* Since this is a global (not per icon/theme) lock we should never
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* block while holding it.
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*
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* Sometimes there are "weak" references to the icon theme that can
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* call into the icon theme. For example, from the "theme-changed"
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* signal. Since these don't own the theme they can run in parallel
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* with some other thread which could be finalizing the theme. To
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* avoid this all such references are done via the GtkIconThemeRef
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* object which contains an NULL:able pointer to the theme and the
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* main lock for that theme. Using this we can safely generate a ref
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* for the theme if it still lives (or get NULL if it doesn't).
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*
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* The icon theme needs to call into the icons sometimes, for example
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* when checking if it should be cached (icon_should_cache__unlocked)
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* this takes the icon->texture_lock while the icon theme is locked.
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* In order to avoid ABBA style deadlocks this means the icon code
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* should never try to lock an icon theme.
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*/
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#define FALLBACK_ICON_THEME "hicolor"
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typedef enum
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{
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ICON_THEME_DIR_FIXED,
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ICON_THEME_DIR_SCALABLE,
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ICON_THEME_DIR_THRESHOLD,
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ICON_THEME_DIR_UNTHEMED
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} IconThemeDirType;
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#if 0
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#define DEBUG_CACHE(args) g_print args
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#else
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#define DEBUG_CACHE(args)
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#endif
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#define LRU_CACHE_SIZE 100
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#define MAX_LRU_TEXTURE_SIZE 128
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typedef struct _GtkIconPaintableClass GtkIconPaintableClass;
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typedef struct _GtkIconThemeClass GtkIconThemeClass;
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typedef struct _GtkIconThemeRef GtkIconThemeRef;
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/**
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* GtkIconTheme:
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*
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* Acts as a database of information about an icon theme.
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* Normally, you retrieve the icon theme for a particular
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* display using gtk_icon_theme_get_for_display() and it
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* will contain information about current icon theme for
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* that display, but you can also create a new #GtkIconTheme
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* object and set the icon theme name explicitly using
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* gtk_icon_theme_set_custom_theme().
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*/
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struct _GtkIconTheme
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{
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GObject parent_instance;
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GtkIconThemeRef *ref;
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GHashTable *icon_cache; /* Protected by icon_cache lock */
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GtkIconPaintable *lru_cache[LRU_CACHE_SIZE]; /* Protected by icon_cache lock */
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int lru_cache_current; /* Protected by icon_cache lock */
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gchar *current_theme;
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gchar **search_path;
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gint search_path_len;
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GList *resource_paths;
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guint custom_theme : 1;
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guint is_display_singleton : 1;
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guint pixbuf_supports_svg : 1;
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guint themes_valid : 1;
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/* A list of all the themes needed to look up icons.
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* In search order, without duplicates
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*/
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GList *themes;
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GHashTable *unthemed_icons;
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/* GdkDisplay for the icon theme (may be NULL) */
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GdkDisplay *display;
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GtkSettings *display_settings;
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/* time when we last stat:ed for theme changes */
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glong last_stat_time;
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GList *dir_mtimes;
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gulong theme_changed_idle;
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};
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struct _GtkIconThemeClass
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{
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GObjectClass parent_class;
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void (* changed) (GtkIconTheme *self);
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};
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typedef struct {
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gchar **icon_names;
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gint size;
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gint scale;
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GtkIconLookupFlags flags;
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} IconKey;
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struct _GtkIconPaintableClass
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{
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GObjectClass parent_class;
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};
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/* This lock protects both IconTheme.icon_cache and the dependent Icon.in_cache.
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* Its a global lock, so hold it only for short times. */
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G_LOCK_DEFINE_STATIC(icon_cache);
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/**
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* GtkIconPaintable:
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*
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* Contains information found when looking up an icon in
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* an icon theme and supports painting it as a #GdkPaintable.
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*/
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struct _GtkIconPaintable
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{
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GObject parent_instance;
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/* Information about the source
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*/
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IconKey key;
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GtkIconTheme *in_cache; /* Protected by icon_cache lock */
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gchar *icon_name;
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gchar *filename;
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GLoadableIcon *loadable;
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#ifdef G_OS_WIN32
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/* win32 icon (if there is any) */
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GdkPixbuf *win32_icon;
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#endif
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/* Parameters influencing the scaled icon
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*/
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gint desired_size;
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gint desired_scale;
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guint is_svg : 1;
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guint is_resource : 1;
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guint is_symbolic : 1;
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/* Cached information if we go ahead and try to load the icon.
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*
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* All access to these are protected by the texture_lock. Everything
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* above is immutable after construction and can be used without
|
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* locks.
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*/
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GMutex texture_lock;
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GdkTexture *texture;
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};
|
||
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typedef struct
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||
{
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gchar *name;
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gchar *display_name;
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gchar *comment;
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||
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GArray *dir_sizes; /* IconThemeDirSize */
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GArray *dirs; /* IconThemeDir */
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GtkStringSet icons;
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} IconTheme;
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||
|
||
typedef struct
|
||
{
|
||
guint16 dir_index; /* index in dirs */
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||
guint8 best_suffix;
|
||
guint8 best_suffix_no_svg;
|
||
} IconThemeFile;
|
||
|
||
typedef struct
|
||
{
|
||
IconThemeDirType type;
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||
gint size;
|
||
gint min_size;
|
||
gint max_size;
|
||
gint threshold;
|
||
gint scale;
|
||
|
||
GArray *icon_files;
|
||
GHashTable *icon_hash; /* name (interned) -> file index */
|
||
} IconThemeDirSize;
|
||
|
||
typedef struct
|
||
{
|
||
gboolean is_resource;
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||
char *path; /* e.g. "/usr/share/icons/hicolor/32x32/apps" */
|
||
} IconThemeDir;
|
||
|
||
typedef struct
|
||
{
|
||
gchar *svg_filename;
|
||
gchar *no_svg_filename;
|
||
gboolean is_resource;
|
||
} UnthemedIcon;
|
||
|
||
typedef struct
|
||
{
|
||
gchar *dir;
|
||
time_t mtime;
|
||
GtkIconCache *cache;
|
||
gboolean exists;
|
||
} IconThemeDirMtime;
|
||
|
||
static void gtk_icon_theme_finalize (GObject *object);
|
||
static void gtk_icon_theme_dispose (GObject *object);
|
||
static IconTheme * theme_new (const char *theme_name,
|
||
GKeyFile *theme_file);
|
||
static void theme_dir_size_destroy (IconThemeDirSize *dir_size);
|
||
static void theme_dir_destroy (IconThemeDir *dir);
|
||
static void theme_destroy (IconTheme *theme);
|
||
static GtkIconPaintable *theme_lookup_icon (IconTheme *theme,
|
||
const gchar *icon_name,
|
||
gint size,
|
||
gint scale,
|
||
gboolean allow_svg);
|
||
static gboolean theme_has_icon (IconTheme *theme,
|
||
const gchar *icon_name);
|
||
static void theme_subdir_load (GtkIconTheme *self,
|
||
IconTheme *theme,
|
||
GKeyFile *theme_file,
|
||
gchar *subdir);
|
||
static void do_theme_change (GtkIconTheme *self);
|
||
static void blow_themes (GtkIconTheme *self);
|
||
static gboolean rescan_themes (GtkIconTheme *self);
|
||
static GtkIconPaintable *icon_paintable_new (const char *icon_name,
|
||
int desired_size,
|
||
int desired_scale);
|
||
static IconCacheFlag suffix_from_name (const gchar *name);
|
||
static void icon_ensure_texture__locked (GtkIconPaintable *icon,
|
||
gboolean in_thread);
|
||
static void unset_display (GtkIconTheme *self);
|
||
static void update_current_theme__mainthread (GtkIconTheme *self);
|
||
static gboolean ensure_valid_themes (GtkIconTheme *self,
|
||
gboolean non_blocking);
|
||
|
||
|
||
static guint signal_changed = 0;
|
||
|
||
/* This is like a weak ref with a lock, anyone doing
|
||
* operations on the theme must take the lock in this,
|
||
* but you can also take the lock even if the theme
|
||
* has been finalized (but theme will then be NULL).
|
||
*
|
||
* This is used to avoid race conditions where signals
|
||
* like theme-changed happen on the main thread while
|
||
* the last active owning ref of the icon theme is
|
||
* on some thread.
|
||
*/
|
||
struct _GtkIconThemeRef
|
||
{
|
||
gatomicrefcount count;
|
||
GMutex lock;
|
||
GtkIconTheme *theme;
|
||
};
|
||
|
||
static GtkIconThemeRef *
|
||
gtk_icon_theme_ref_new (GtkIconTheme *theme)
|
||
{
|
||
GtkIconThemeRef *ref = g_new0 (GtkIconThemeRef, 1);
|
||
|
||
g_atomic_ref_count_init (&ref->count);
|
||
g_mutex_init (&ref->lock);
|
||
ref->theme = theme;
|
||
|
||
return ref;
|
||
}
|
||
|
||
static GtkIconThemeRef *
|
||
gtk_icon_theme_ref_ref (GtkIconThemeRef *ref)
|
||
{
|
||
g_atomic_ref_count_inc (&ref->count);
|
||
return ref;
|
||
}
|
||
|
||
static void
|
||
gtk_icon_theme_ref_unref (GtkIconThemeRef *ref)
|
||
{
|
||
if (g_atomic_ref_count_dec (&ref->count))
|
||
{
|
||
g_assert (ref->theme == NULL);
|
||
g_mutex_clear (&ref->lock);
|
||
g_free (ref);
|
||
}
|
||
}
|
||
|
||
/* Take the lock and if available ensure the theme lives until (at
|
||
* least) ref_release is called. */
|
||
static GtkIconTheme *
|
||
gtk_icon_theme_ref_aquire (GtkIconThemeRef *ref)
|
||
{
|
||
g_mutex_lock (&ref->lock);
|
||
if (ref->theme)
|
||
g_object_ref (ref->theme);
|
||
return ref->theme;
|
||
}
|
||
|
||
static void
|
||
gtk_icon_theme_ref_release (GtkIconThemeRef *ref)
|
||
{
|
||
if (ref->theme)
|
||
g_object_unref (ref->theme);
|
||
g_mutex_unlock (&ref->lock);
|
||
}
|
||
|
||
static void
|
||
gtk_icon_theme_ref_dispose (GtkIconThemeRef *ref)
|
||
{
|
||
gtk_icon_theme_ref_aquire (ref);
|
||
ref->theme = NULL;
|
||
gtk_icon_theme_ref_release (ref);
|
||
}
|
||
|
||
static void
|
||
gtk_icon_theme_lock (GtkIconTheme *self)
|
||
{
|
||
g_mutex_lock (&self->ref->lock);
|
||
}
|
||
|
||
static void
|
||
gtk_icon_theme_unlock (GtkIconTheme *self)
|
||
{
|
||
g_mutex_unlock (&self->ref->lock);
|
||
}
|
||
|
||
|
||
static guint
|
||
icon_key_hash (gconstpointer _key)
|
||
{
|
||
const IconKey *key = _key;
|
||
guint h = 0;
|
||
int i;
|
||
for (i = 0; key->icon_names[i] != NULL; i++)
|
||
h ^= g_str_hash (key->icon_names[i]);
|
||
|
||
h ^= key->size * 0x10001;
|
||
h ^= key->scale * 0x1000010;
|
||
h ^= key->flags * 0x100000100;
|
||
|
||
return h;
|
||
}
|
||
|
||
static gboolean
|
||
icon_key_equal (gconstpointer _a,
|
||
gconstpointer _b)
|
||
{
|
||
const IconKey *a = _a;
|
||
const IconKey *b = _b;
|
||
int i;
|
||
|
||
if (a->size != b->size)
|
||
return FALSE;
|
||
|
||
if (a->scale != b->scale)
|
||
return FALSE;
|
||
|
||
if (a->flags != b->flags)
|
||
return FALSE;
|
||
|
||
for (i = 0;
|
||
a->icon_names[i] != NULL &&
|
||
b->icon_names[i] != NULL; i++)
|
||
{
|
||
if (strcmp (a->icon_names[i], b->icon_names[i]) != 0)
|
||
return FALSE;
|
||
}
|
||
|
||
return a->icon_names[i] == NULL && b->icon_names[i] == NULL;
|
||
}
|
||
|
||
/****************** Icon cache ***********************
|
||
*
|
||
* The icon cache, this spans both GtkIconTheme and GtkIcon, so the locking is
|
||
* a bit tricky. Never do block with the lock held, and never do any
|
||
* callouts to other code. In particular, don't call theme or finalizers
|
||
* because that will take the lock when removing from the icon cache.
|
||
*/
|
||
|
||
/* This is called with icon_cache lock held so must not take any locks */
|
||
static gboolean
|
||
_icon_cache_should_lru_cache (GtkIconPaintable *icon)
|
||
{
|
||
return icon->desired_size <= MAX_LRU_TEXTURE_SIZE;
|
||
}
|
||
|
||
/* This returns the old lru element because we can't unref it with
|
||
* the lock held */
|
||
static GtkIconPaintable *
|
||
_icon_cache_add_to_lru_cache (GtkIconTheme *theme,
|
||
GtkIconPaintable *icon)
|
||
{
|
||
GtkIconPaintable *old_icon = NULL;
|
||
|
||
/* Avoid storing the same info multiple times in a row */
|
||
if (theme->lru_cache[theme->lru_cache_current] != icon)
|
||
{
|
||
theme->lru_cache_current = (theme->lru_cache_current + 1) % LRU_CACHE_SIZE;
|
||
old_icon = theme->lru_cache[theme->lru_cache_current];
|
||
theme->lru_cache[theme->lru_cache_current] = g_object_ref (icon);
|
||
}
|
||
|
||
return old_icon;
|
||
}
|
||
|
||
static GtkIconPaintable *
|
||
icon_cache_lookup (GtkIconTheme *theme,
|
||
IconKey *key)
|
||
{
|
||
GtkIconPaintable *old_icon = NULL;
|
||
GtkIconPaintable *icon;
|
||
|
||
G_LOCK (icon_cache);
|
||
|
||
icon = g_hash_table_lookup (theme->icon_cache, key);
|
||
if (icon != NULL)
|
||
{
|
||
DEBUG_CACHE (("cache hit %p (%s %d 0x%x) (cache size %d)\n",
|
||
icon,
|
||
g_strjoinv (",", icon->key.icon_names),
|
||
icon->key.size, icon->key.flags,
|
||
g_hash_table_size (theme->icon_cache)));
|
||
|
||
icon = g_object_ref (icon);
|
||
|
||
/* Move item to front in LRU cache */
|
||
if (_icon_cache_should_lru_cache (icon))
|
||
old_icon = _icon_cache_add_to_lru_cache (theme, icon);
|
||
}
|
||
|
||
G_UNLOCK (icon_cache);
|
||
|
||
/* Call potential finalizer outside the lock */
|
||
if (old_icon)
|
||
g_object_unref (old_icon);
|
||
|
||
return icon;
|
||
}
|
||
|
||
/* The icon was removed from the icon_hash hash table.
|
||
* This is a callback from the icon_cache hashtable, so the icon_cache lock is already held.
|
||
*/
|
||
static void
|
||
icon_uncached_cb (GtkIconPaintable *icon)
|
||
{
|
||
DEBUG_CACHE (("removing %p (%s %d 0x%x) from cache (icon_them: %p) (cache size %d)\n",
|
||
icon,
|
||
g_strjoinv (",", icon->key.icon_names),
|
||
icon->key.size, icon->key.flags,
|
||
self,
|
||
icon_theme != NULL ? g_hash_table_size (self->icon_cache) : 0));
|
||
g_assert (icon->in_cache != NULL);
|
||
icon->in_cache = NULL;
|
||
}
|
||
|
||
static void
|
||
icon_cache_mark_used_if_cached (GtkIconPaintable *icon)
|
||
{
|
||
GtkIconPaintable *old_icon = NULL;
|
||
|
||
if (!_icon_cache_should_lru_cache (icon))
|
||
return;
|
||
|
||
G_LOCK (icon_cache);
|
||
if (icon->in_cache)
|
||
old_icon = _icon_cache_add_to_lru_cache (icon->in_cache, icon);
|
||
G_UNLOCK (icon_cache);
|
||
|
||
/* Call potential finalizers outside the lock */
|
||
if (old_icon)
|
||
g_object_unref (old_icon);
|
||
}
|
||
|
||
static void
|
||
icon_cache_add (GtkIconTheme *theme,
|
||
GtkIconPaintable *icon)
|
||
{
|
||
GtkIconPaintable *old_icon = NULL;
|
||
|
||
G_LOCK (icon_cache);
|
||
icon->in_cache = theme;
|
||
g_hash_table_insert (theme->icon_cache, &icon->key, icon);
|
||
|
||
if (_icon_cache_should_lru_cache (icon))
|
||
old_icon = _icon_cache_add_to_lru_cache (theme, icon);
|
||
DEBUG_CACHE (("adding %p (%s %d 0x%x) to cache (cache size %d)\n",
|
||
icon,
|
||
g_strjoinv (",", icon->key.icon_names),
|
||
icon->key.size, icon->key.flags,
|
||
g_hash_table_size (theme->icon_cache)));
|
||
G_UNLOCK (icon_cache);
|
||
|
||
/* Call potential finalizer outside the lock */
|
||
if (old_icon)
|
||
g_object_unref (old_icon);
|
||
}
|
||
|
||
static void
|
||
icon_cache_remove (GtkIconPaintable *icon)
|
||
{
|
||
G_LOCK (icon_cache);
|
||
if (icon->in_cache)
|
||
g_hash_table_remove (icon->in_cache->icon_cache, &icon->key);
|
||
G_UNLOCK (icon_cache);
|
||
}
|
||
|
||
static void
|
||
icon_cache_clear (GtkIconTheme *theme)
|
||
{
|
||
int i;
|
||
GtkIconPaintable *old_icons[LRU_CACHE_SIZE];
|
||
|
||
G_LOCK (icon_cache);
|
||
g_hash_table_remove_all (theme->icon_cache);
|
||
for (i = 0; i < LRU_CACHE_SIZE; i ++)
|
||
{
|
||
old_icons[i] = theme->lru_cache[i];
|
||
theme->lru_cache[i] = NULL;
|
||
}
|
||
G_UNLOCK (icon_cache);
|
||
|
||
/* Call potential finalizers outside the lock */
|
||
for (i = 0; i < LRU_CACHE_SIZE; i ++)
|
||
{
|
||
if (old_icons[i] != NULL)
|
||
g_object_unref (old_icons[i]);
|
||
}
|
||
}
|
||
|
||
/****************** End of icon cache ***********************/
|
||
|
||
G_DEFINE_TYPE (GtkIconTheme, gtk_icon_theme, G_TYPE_OBJECT)
|
||
|
||
/**
|
||
* gtk_icon_theme_new:
|
||
*
|
||
* Creates a new icon theme object. Icon theme objects are used
|
||
* to lookup up an icon by name in a particular icon theme.
|
||
* Usually, you’ll want to use gtk_icon_theme_get_for_display()
|
||
* rather than creating a new icon theme object for scratch.
|
||
*
|
||
* Returns: the newly created #GtkIconTheme object.
|
||
*/
|
||
GtkIconTheme *
|
||
gtk_icon_theme_new (void)
|
||
{
|
||
return g_object_new (GTK_TYPE_ICON_THEME, NULL);
|
||
}
|
||
|
||
static void
|
||
load_theme_thread (GTask *task,
|
||
gpointer source_object,
|
||
gpointer task_data,
|
||
GCancellable *cancellable)
|
||
{
|
||
GtkIconTheme *self = GTK_ICON_THEME (source_object);
|
||
|
||
gtk_icon_theme_lock (self);
|
||
ensure_valid_themes (self, FALSE);
|
||
gtk_icon_theme_unlock (self);
|
||
g_task_return_pointer (task, NULL, NULL);
|
||
}
|
||
|
||
static void
|
||
gtk_icon_theme_load_in_thread (GtkIconTheme *self)
|
||
{
|
||
GTask *task;
|
||
|
||
task = g_task_new (self, NULL, NULL, NULL);
|
||
g_task_set_task_data (task, g_object_ref (self), g_object_unref);
|
||
g_task_run_in_thread (task, load_theme_thread);
|
||
g_object_unref (task);
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_theme_get_for_display:
|
||
* @display: a #GdkDisplay
|
||
*
|
||
* Gets the icon theme object associated with @display; if this
|
||
* function has not previously been called for the given
|
||
* display, a new icon theme object will be created and
|
||
* associated with the display. Icon theme objects are
|
||
* fairly expensive to create, so using this function
|
||
* is usually a better choice than calling than gtk_icon_theme_new()
|
||
* and setting the display yourself; by using this function
|
||
* a single icon theme object will be shared between users.
|
||
*
|
||
* Returns: (transfer none): A unique #GtkIconTheme associated with
|
||
* the given display. This icon theme is associated with
|
||
* the display and can be used as long as the display
|
||
* is open. Do not ref or unref it.
|
||
*/
|
||
GtkIconTheme *
|
||
gtk_icon_theme_get_for_display (GdkDisplay *display)
|
||
{
|
||
GtkIconTheme *self;
|
||
|
||
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
|
||
|
||
self = g_object_get_data (G_OBJECT (display), "gtk-icon-theme");
|
||
if (!self)
|
||
{
|
||
self = gtk_icon_theme_new ();
|
||
self->is_display_singleton = TRUE;
|
||
|
||
g_object_set_data (G_OBJECT (display), I_("gtk-icon-theme"), self);
|
||
|
||
/* Call this after setting the user-data, because it recurses into gtk_icon_theme_get_for_display via the thememing machinery */
|
||
gtk_icon_theme_set_display (self, display);
|
||
|
||
/* Queue early read of the default themes, we read the icon theme name in _set_display(). */
|
||
gtk_icon_theme_load_in_thread (self);
|
||
}
|
||
|
||
return self;
|
||
}
|
||
|
||
static void
|
||
gtk_icon_theme_class_init (GtkIconThemeClass *klass)
|
||
{
|
||
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
||
|
||
gobject_class->finalize = gtk_icon_theme_finalize;
|
||
gobject_class->dispose = gtk_icon_theme_dispose;
|
||
|
||
/**
|
||
* GtkIconTheme::changed:
|
||
* @self: the icon theme
|
||
*
|
||
* Emitted when the current icon theme is switched or GTK+ detects
|
||
* that a change has occurred in the contents of the current
|
||
* icon theme.
|
||
*/
|
||
signal_changed = g_signal_new (I_("changed"),
|
||
G_TYPE_FROM_CLASS (klass),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkIconThemeClass, changed),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE, 0);
|
||
}
|
||
|
||
|
||
/* Callback when the display that the icon theme is attached
|
||
* to is closed; unset the display, and if it’s the unique theme
|
||
* for the display, drop the reference
|
||
*/
|
||
static void
|
||
display_closed__mainthread_unlocked (GdkDisplay *display,
|
||
gboolean is_error,
|
||
GtkIconThemeRef *ref)
|
||
{
|
||
GtkIconTheme *self = gtk_icon_theme_ref_aquire (ref);
|
||
gboolean was_display_singleton;
|
||
|
||
if (self)
|
||
{
|
||
/* This is only set at construction and accessed here in the main thread, so no locking necessary */
|
||
was_display_singleton = self->is_display_singleton;
|
||
if (was_display_singleton)
|
||
{
|
||
g_object_set_data (G_OBJECT (display), I_("gtk-icon-theme"), NULL);
|
||
self->is_display_singleton = FALSE;
|
||
}
|
||
|
||
unset_display (self);
|
||
update_current_theme__mainthread (self);
|
||
|
||
if (was_display_singleton)
|
||
g_object_unref (self);
|
||
}
|
||
|
||
gtk_icon_theme_ref_release (ref);
|
||
}
|
||
|
||
static void
|
||
update_current_theme__mainthread (GtkIconTheme *self)
|
||
{
|
||
#define theme_changed(_old, _new) \
|
||
((_old && !_new) || (!_old && _new) || \
|
||
(_old && _new && strcmp (_old, _new) != 0))
|
||
|
||
if (!self->custom_theme)
|
||
{
|
||
gchar *theme = NULL;
|
||
gboolean changed = FALSE;
|
||
|
||
if (self->display)
|
||
{
|
||
GtkSettings *settings = gtk_settings_get_for_display (self->display);
|
||
g_object_get (settings, "gtk-icon-theme-name", &theme, NULL);
|
||
}
|
||
|
||
if (theme_changed (self->current_theme, theme))
|
||
{
|
||
g_free (self->current_theme);
|
||
self->current_theme = theme;
|
||
changed = TRUE;
|
||
}
|
||
else
|
||
g_free (theme);
|
||
|
||
if (changed)
|
||
do_theme_change (self);
|
||
}
|
||
#undef theme_changed
|
||
}
|
||
|
||
/* Callback when the icon theme GtkSetting changes
|
||
*/
|
||
static void
|
||
theme_changed__mainthread_unlocked (GtkSettings *settings,
|
||
GParamSpec *pspec,
|
||
GtkIconThemeRef *ref)
|
||
{
|
||
GtkIconTheme *self = gtk_icon_theme_ref_aquire (ref);
|
||
|
||
if (self)
|
||
{
|
||
update_current_theme__mainthread (self);
|
||
|
||
/* Queue early read of the new theme */
|
||
gtk_icon_theme_load_in_thread (self);
|
||
}
|
||
|
||
gtk_icon_theme_ref_release (ref);
|
||
}
|
||
|
||
static void
|
||
unset_display (GtkIconTheme *self)
|
||
{
|
||
if (self->display)
|
||
{
|
||
g_signal_handlers_disconnect_by_func (self->display,
|
||
(gpointer) display_closed__mainthread_unlocked,
|
||
self->ref);
|
||
g_signal_handlers_disconnect_by_func (self->display_settings,
|
||
(gpointer) theme_changed__mainthread_unlocked,
|
||
self->ref);
|
||
|
||
self->display = NULL;
|
||
self->display_settings = NULL;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_theme_set_display:
|
||
* @self: a #GtkIconTheme
|
||
* @display: a #GdkDisplay
|
||
*
|
||
* Sets the display for an icon theme; the display is used
|
||
* to track the user’s currently configured icon theme,
|
||
* which might be different for different displays.
|
||
*/
|
||
void
|
||
gtk_icon_theme_set_display (GtkIconTheme *self,
|
||
GdkDisplay *display)
|
||
{
|
||
g_return_if_fail (GTK_ICON_THEME (self));
|
||
g_return_if_fail (display == NULL || GDK_IS_DISPLAY (display));
|
||
|
||
gtk_icon_theme_lock (self);
|
||
|
||
unset_display (self);
|
||
|
||
if (display)
|
||
{
|
||
self->display = display;
|
||
self->display_settings = gtk_settings_get_for_display (display);
|
||
|
||
g_signal_connect_data (display, "closed",
|
||
G_CALLBACK (display_closed__mainthread_unlocked),
|
||
gtk_icon_theme_ref_ref (self->ref),
|
||
(GClosureNotify)gtk_icon_theme_ref_unref,
|
||
0);
|
||
g_signal_connect_data (self->display_settings, "notify::gtk-icon-theme-name",
|
||
G_CALLBACK (theme_changed__mainthread_unlocked),
|
||
gtk_icon_theme_ref_ref (self->ref),
|
||
(GClosureNotify)gtk_icon_theme_ref_unref,
|
||
0);
|
||
}
|
||
|
||
update_current_theme__mainthread (self);
|
||
|
||
gtk_icon_theme_unlock (self);
|
||
}
|
||
|
||
/* Checks whether a loader for SVG files has been registered
|
||
* with GdkPixbuf.
|
||
*/
|
||
static gboolean
|
||
pixbuf_supports_svg (void)
|
||
{
|
||
GSList *formats;
|
||
GSList *tmp_list;
|
||
static gint found_svg = -1;
|
||
|
||
if (found_svg != -1)
|
||
return found_svg;
|
||
|
||
formats = gdk_pixbuf_get_formats ();
|
||
|
||
found_svg = FALSE;
|
||
for (tmp_list = formats; tmp_list && !found_svg; tmp_list = tmp_list->next)
|
||
{
|
||
gchar **mime_types = gdk_pixbuf_format_get_mime_types (tmp_list->data);
|
||
gchar **mime_type;
|
||
|
||
for (mime_type = mime_types; *mime_type && !found_svg; mime_type++)
|
||
{
|
||
if (strcmp (*mime_type, "image/svg") == 0)
|
||
found_svg = TRUE;
|
||
}
|
||
|
||
g_strfreev (mime_types);
|
||
}
|
||
|
||
g_slist_free (formats);
|
||
|
||
return found_svg;
|
||
}
|
||
|
||
static void
|
||
gtk_icon_theme_init (GtkIconTheme *self)
|
||
{
|
||
const gchar * const *xdg_data_dirs;
|
||
int i, j;
|
||
|
||
self->ref = gtk_icon_theme_ref_new (self);
|
||
|
||
self->icon_cache = g_hash_table_new_full (icon_key_hash, icon_key_equal, NULL,
|
||
(GDestroyNotify)icon_uncached_cb);
|
||
|
||
self->custom_theme = FALSE;
|
||
|
||
xdg_data_dirs = g_get_system_data_dirs ();
|
||
for (i = 0; xdg_data_dirs[i]; i++) ;
|
||
|
||
self->search_path_len = 2 * i + 2;
|
||
|
||
self->search_path = g_new (char *, self->search_path_len);
|
||
|
||
i = 0;
|
||
self->search_path[i++] = g_build_filename (g_get_user_data_dir (), "icons", NULL);
|
||
self->search_path[i++] = g_build_filename (g_get_home_dir (), ".icons", NULL);
|
||
|
||
for (j = 0; xdg_data_dirs[j]; j++)
|
||
self->search_path[i++] = g_build_filename (xdg_data_dirs[j], "icons", NULL);
|
||
|
||
for (j = 0; xdg_data_dirs[j]; j++)
|
||
self->search_path[i++] = g_build_filename (xdg_data_dirs[j], "pixmaps", NULL);
|
||
|
||
self->resource_paths = g_list_append (NULL, g_strdup ("/org/gtk/libgtk/icons/"));
|
||
|
||
self->themes_valid = FALSE;
|
||
self->themes = NULL;
|
||
self->unthemed_icons = NULL;
|
||
|
||
self->pixbuf_supports_svg = pixbuf_supports_svg ();
|
||
}
|
||
|
||
static void
|
||
free_dir_mtime (IconThemeDirMtime *dir_mtime)
|
||
{
|
||
if (dir_mtime->cache)
|
||
gtk_icon_cache_unref (dir_mtime->cache);
|
||
|
||
g_free (dir_mtime->dir);
|
||
g_slice_free (IconThemeDirMtime, dir_mtime);
|
||
}
|
||
|
||
static gboolean
|
||
theme_changed_idle__mainthread_unlocked (gpointer user_data)
|
||
{
|
||
GtkIconThemeRef *ref = (GtkIconThemeRef *)user_data;
|
||
GtkIconTheme *self;
|
||
GdkDisplay *display = NULL;
|
||
|
||
self = gtk_icon_theme_ref_aquire (ref);
|
||
if (self)
|
||
{
|
||
g_object_ref (self); /* Ensure theme lives during the changed signal emissions */
|
||
|
||
self->theme_changed_idle = 0;
|
||
|
||
if (self->display && self->is_display_singleton)
|
||
display = g_object_ref (self->display);
|
||
}
|
||
gtk_icon_theme_ref_release (ref);
|
||
|
||
if (self)
|
||
{
|
||
/* Emit signals outside locks. */
|
||
g_signal_emit (self, signal_changed, 0);
|
||
|
||
if (display)
|
||
{
|
||
gtk_style_context_reset_widgets (self->display);
|
||
g_object_unref (display);
|
||
}
|
||
|
||
g_object_unref (self);
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static void
|
||
queue_theme_changed (GtkIconTheme *self)
|
||
{
|
||
if (!self->theme_changed_idle)
|
||
{
|
||
self->theme_changed_idle = g_idle_add_full (GTK_PRIORITY_RESIZE - 2,
|
||
theme_changed_idle__mainthread_unlocked,
|
||
gtk_icon_theme_ref_ref (self->ref),
|
||
(GDestroyNotify)gtk_icon_theme_ref_unref);
|
||
g_source_set_name_by_id (self->theme_changed_idle, "[gtk] theme_changed_idle");
|
||
}
|
||
}
|
||
|
||
static void
|
||
do_theme_change (GtkIconTheme *self)
|
||
{
|
||
icon_cache_clear (self);
|
||
|
||
if (!self->themes_valid)
|
||
return;
|
||
|
||
GTK_DISPLAY_NOTE (self->display, ICONTHEME,
|
||
g_message ("change to icon theme \"%s\"", self->current_theme));
|
||
blow_themes (self);
|
||
|
||
queue_theme_changed (self);
|
||
|
||
}
|
||
|
||
static void
|
||
blow_themes (GtkIconTheme *self)
|
||
{
|
||
if (self->themes_valid)
|
||
{
|
||
g_list_free_full (self->themes, (GDestroyNotify) theme_destroy);
|
||
g_list_free_full (self->dir_mtimes, (GDestroyNotify) free_dir_mtime);
|
||
g_hash_table_destroy (self->unthemed_icons);
|
||
}
|
||
self->themes = NULL;
|
||
self->unthemed_icons = NULL;
|
||
self->dir_mtimes = NULL;
|
||
self->themes_valid = FALSE;
|
||
}
|
||
|
||
static void
|
||
gtk_icon_theme_dispose (GObject *object)
|
||
{
|
||
GtkIconTheme *self = GTK_ICON_THEME (object);
|
||
|
||
/* We make sure all outstanding GtkIconThemeRefs to us are NULLed
|
||
* out so that no other threads than the one running finalize will
|
||
* refer to the icon theme after this. This could happen if
|
||
* we finalize on a thread and on the main thread some display or
|
||
* setting signal is emitted.
|
||
*
|
||
* It is possible that before we aquire the lock this happens
|
||
* and the other thread refs the icon theme for some reason, but
|
||
* this is ok as it is allowed to resurrect objects in dispose
|
||
* (but not in finalize).
|
||
*/
|
||
gtk_icon_theme_ref_dispose (self->ref);
|
||
|
||
G_OBJECT_CLASS (gtk_icon_theme_parent_class)->dispose (object);
|
||
}
|
||
|
||
static void
|
||
gtk_icon_theme_finalize (GObject *object)
|
||
{
|
||
GtkIconTheme *self = GTK_ICON_THEME (object);
|
||
int i;
|
||
|
||
/* We don't actually need to take the lock here, because by now
|
||
there can be no other threads that own a ref to this object, but
|
||
technically this is considered "locked" */
|
||
|
||
icon_cache_clear (self);
|
||
|
||
if (self->theme_changed_idle)
|
||
g_source_remove (self->theme_changed_idle);
|
||
|
||
unset_display (self);
|
||
|
||
g_free (self->current_theme);
|
||
|
||
for (i = 0; i < self->search_path_len; i++)
|
||
g_free (self->search_path[i]);
|
||
g_free (self->search_path);
|
||
|
||
g_list_free_full (self->resource_paths, g_free);
|
||
|
||
blow_themes (self);
|
||
|
||
gtk_icon_theme_ref_unref (self->ref);
|
||
|
||
G_OBJECT_CLASS (gtk_icon_theme_parent_class)->finalize (object);
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_theme_set_search_path:
|
||
* @self: a #GtkIconTheme
|
||
* @path: (array length=n_elements) (element-type filename): array of
|
||
* directories that are searched for icon themes
|
||
* @n_elements: number of elements in @path.
|
||
*
|
||
* Sets the search path for the icon theme object. When looking
|
||
* for an icon theme, GTK+ will search for a subdirectory of
|
||
* one or more of the directories in @path with the same name
|
||
* as the icon theme containing an index.theme file. (Themes from
|
||
* multiple of the path elements are combined to allow themes to be
|
||
* extended by adding icons in the user’s home directory.)
|
||
*
|
||
* In addition if an icon found isn’t found either in the current
|
||
* icon theme or the default icon theme, and an image file with
|
||
* the right name is found directly in one of the elements of
|
||
* @path, then that image will be used for the icon name.
|
||
* (This is legacy feature, and new icons should be put
|
||
* into the fallback icon theme, which is called hicolor,
|
||
* rather than directly on the icon path.)
|
||
*/
|
||
void
|
||
gtk_icon_theme_set_search_path (GtkIconTheme *self,
|
||
const gchar *path[],
|
||
gint n_elements)
|
||
{
|
||
gint i;
|
||
|
||
g_return_if_fail (GTK_IS_ICON_THEME (self));
|
||
|
||
gtk_icon_theme_lock (self);
|
||
|
||
for (i = 0; i < self->search_path_len; i++)
|
||
g_free (self->search_path[i]);
|
||
|
||
g_free (self->search_path);
|
||
|
||
self->search_path = g_new (gchar *, n_elements);
|
||
self->search_path_len = n_elements;
|
||
|
||
for (i = 0; i < self->search_path_len; i++)
|
||
self->search_path[i] = g_strdup (path[i]);
|
||
|
||
do_theme_change (self);
|
||
|
||
gtk_icon_theme_unlock (self);
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_theme_get_search_path:
|
||
* @self: a #GtkIconTheme
|
||
* @path: (allow-none) (array length=n_elements) (element-type filename) (out):
|
||
* location to store a list of icon theme path directories or %NULL.
|
||
* The stored value should be freed with g_strfreev().
|
||
* @n_elements: location to store number of elements in @path, or %NULL
|
||
*
|
||
* Gets the current search path. See gtk_icon_theme_set_search_path().
|
||
*/
|
||
void
|
||
gtk_icon_theme_get_search_path (GtkIconTheme *self,
|
||
gchar **path[],
|
||
gint *n_elements)
|
||
{
|
||
gint i;
|
||
|
||
g_return_if_fail (GTK_IS_ICON_THEME (self));
|
||
|
||
gtk_icon_theme_lock (self);
|
||
|
||
if (n_elements)
|
||
*n_elements = self->search_path_len;
|
||
|
||
if (path)
|
||
{
|
||
*path = g_new (gchar *, self->search_path_len + 1);
|
||
for (i = 0; i < self->search_path_len; i++)
|
||
(*path)[i] = g_strdup (self->search_path[i]);
|
||
(*path)[i] = NULL;
|
||
}
|
||
|
||
gtk_icon_theme_unlock (self);
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_theme_append_search_path:
|
||
* @self: a #GtkIconTheme
|
||
* @path: (type filename): directory name to append to the icon path
|
||
*
|
||
* Appends a directory to the search path.
|
||
* See gtk_icon_theme_set_search_path().
|
||
*/
|
||
void
|
||
gtk_icon_theme_append_search_path (GtkIconTheme *self,
|
||
const gchar *path)
|
||
{
|
||
g_return_if_fail (GTK_IS_ICON_THEME (self));
|
||
g_return_if_fail (path != NULL);
|
||
|
||
gtk_icon_theme_lock (self);
|
||
|
||
self->search_path_len++;
|
||
|
||
self->search_path = g_renew (gchar *, self->search_path, self->search_path_len);
|
||
self->search_path[self->search_path_len-1] = g_strdup (path);
|
||
|
||
do_theme_change (self);
|
||
|
||
gtk_icon_theme_unlock (self);
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_theme_prepend_search_path:
|
||
* @self: a #GtkIconTheme
|
||
* @path: (type filename): directory name to prepend to the icon path
|
||
*
|
||
* Prepends a directory to the search path.
|
||
* See gtk_icon_theme_set_search_path().
|
||
*/
|
||
void
|
||
gtk_icon_theme_prepend_search_path (GtkIconTheme *self,
|
||
const gchar *path)
|
||
{
|
||
gint i;
|
||
|
||
g_return_if_fail (GTK_IS_ICON_THEME (self));
|
||
g_return_if_fail (path != NULL);
|
||
|
||
gtk_icon_theme_lock (self);
|
||
|
||
self->search_path_len++;
|
||
self->search_path = g_renew (gchar *, self->search_path, self->search_path_len);
|
||
|
||
for (i = self->search_path_len - 1; i > 0; i--)
|
||
self->search_path[i] = self->search_path[i - 1];
|
||
|
||
self->search_path[0] = g_strdup (path);
|
||
|
||
do_theme_change (self);
|
||
|
||
gtk_icon_theme_unlock (self);
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_theme_add_resource_path:
|
||
* @self: a #GtkIconTheme
|
||
* @path: a resource path
|
||
*
|
||
* Adds a resource path that will be looked at when looking
|
||
* for icons, similar to search paths.
|
||
*
|
||
* This function should be used to make application-specific icons
|
||
* available as part of the icon theme.
|
||
*
|
||
* The resources are considered as part of the hicolor icon theme
|
||
* and must be located in subdirectories that are defined in the
|
||
* hicolor icon theme, such as `@path/16x16/actions/run.png`.
|
||
* Icons that are directly placed in the resource path instead
|
||
* of a subdirectory are also considered as ultimate fallback.
|
||
*/
|
||
void
|
||
gtk_icon_theme_add_resource_path (GtkIconTheme *self,
|
||
const gchar *path)
|
||
{
|
||
g_return_if_fail (GTK_IS_ICON_THEME (self));
|
||
g_return_if_fail (path != NULL);
|
||
|
||
gtk_icon_theme_lock (self);
|
||
|
||
self->resource_paths = g_list_append (self->resource_paths, g_strdup (path));
|
||
|
||
do_theme_change (self);
|
||
|
||
gtk_icon_theme_unlock (self);
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_theme_set_custom_theme:
|
||
* @self: a #GtkIconTheme
|
||
* @theme_name: (allow-none): name of icon theme to use instead of
|
||
* configured theme, or %NULL to unset a previously set custom theme
|
||
*
|
||
* Sets the name of the icon theme that the #GtkIconTheme object uses
|
||
* overriding system configuration. This function cannot be called
|
||
* on the icon theme objects returned from gtk_icon_theme_get_for_display().
|
||
*/
|
||
void
|
||
gtk_icon_theme_set_custom_theme (GtkIconTheme *self,
|
||
const gchar *theme_name)
|
||
{
|
||
g_return_if_fail (GTK_IS_ICON_THEME (self));
|
||
|
||
g_return_if_fail (!self->is_display_singleton);
|
||
|
||
gtk_icon_theme_lock (self);
|
||
|
||
if (theme_name != NULL)
|
||
{
|
||
self->custom_theme = TRUE;
|
||
if (!self->current_theme || strcmp (theme_name, self->current_theme) != 0)
|
||
{
|
||
g_free (self->current_theme);
|
||
self->current_theme = g_strdup (theme_name);
|
||
|
||
do_theme_change (self);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (self->custom_theme)
|
||
{
|
||
self->custom_theme = FALSE;
|
||
update_current_theme__mainthread (self);
|
||
}
|
||
}
|
||
|
||
gtk_icon_theme_unlock (self);
|
||
}
|
||
|
||
static const gchar builtin_hicolor_index[] =
|
||
"[Icon Theme]\n"
|
||
"Name=Hicolor\n"
|
||
"Hidden=True\n"
|
||
"Directories=16x16/actions,16x16/status,22x22/actions,24x24/actions,24x24/status,32x32/actions,32x32/status,48x48/status,64x64/actions\n"
|
||
"[16x16/actions]\n"
|
||
"Size=16\n"
|
||
"Type=Threshold\n"
|
||
"[16x16/status]\n"
|
||
"Size=16\n"
|
||
"Type=Threshold\n"
|
||
"[22x22/actions]\n"
|
||
"Size=22\n"
|
||
"Type=Threshold\n"
|
||
"[24x24/actions]\n"
|
||
"Size=24\n"
|
||
"Type=Threshold\n"
|
||
"[24x24/status]\n"
|
||
"Size=24\n"
|
||
"Type=Threshold\n"
|
||
"[32x32/actions]\n"
|
||
"Size=32\n"
|
||
"Type=Threshold\n"
|
||
"[32x32/status]\n"
|
||
"Size=32\n"
|
||
"Type=Threshold\n"
|
||
"[48x48/status]\n"
|
||
"Size=48\n"
|
||
"Type=Threshold\n"
|
||
"[64x64/actions]\n"
|
||
"Size=64\n"
|
||
"Type=Threshold\n";
|
||
|
||
static void
|
||
insert_theme (GtkIconTheme *self,
|
||
const gchar *theme_name)
|
||
{
|
||
gint i;
|
||
GList *l;
|
||
gchar **dirs;
|
||
gchar **scaled_dirs;
|
||
gchar **themes;
|
||
IconTheme *theme = NULL;
|
||
gchar *path;
|
||
GKeyFile *theme_file;
|
||
GError *error = NULL;
|
||
IconThemeDirMtime *dir_mtime;
|
||
GStatBuf stat_buf;
|
||
|
||
for (l = self->themes; l != NULL; l = l->next)
|
||
{
|
||
theme = l->data;
|
||
if (strcmp (theme->name, theme_name) == 0)
|
||
return;
|
||
}
|
||
|
||
for (i = 0; i < self->search_path_len; i++)
|
||
{
|
||
path = g_build_filename (self->search_path[i],
|
||
theme_name,
|
||
NULL);
|
||
dir_mtime = g_slice_new (IconThemeDirMtime);
|
||
dir_mtime->cache = NULL;
|
||
dir_mtime->dir = path;
|
||
if (g_stat (path, &stat_buf) == 0 && S_ISDIR (stat_buf.st_mode)) {
|
||
dir_mtime->mtime = stat_buf.st_mtime;
|
||
dir_mtime->exists = TRUE;
|
||
} else {
|
||
dir_mtime->mtime = 0;
|
||
dir_mtime->exists = FALSE;
|
||
}
|
||
|
||
self->dir_mtimes = g_list_prepend (self->dir_mtimes, dir_mtime);
|
||
}
|
||
|
||
theme_file = NULL;
|
||
for (i = 0; i < self->search_path_len && !theme_file; i++)
|
||
{
|
||
path = g_build_filename (self->search_path[i],
|
||
theme_name,
|
||
"index.theme",
|
||
NULL);
|
||
if (g_file_test (path, G_FILE_TEST_IS_REGULAR))
|
||
{
|
||
theme_file = g_key_file_new ();
|
||
g_key_file_set_list_separator (theme_file, ',');
|
||
if (!g_key_file_load_from_file (theme_file, path, 0, &error))
|
||
{
|
||
g_key_file_free (theme_file);
|
||
theme_file = NULL;
|
||
g_error_free (error);
|
||
error = NULL;
|
||
}
|
||
}
|
||
g_free (path);
|
||
}
|
||
|
||
if (theme_file == NULL)
|
||
{
|
||
if (strcmp (theme_name, FALLBACK_ICON_THEME) == 0)
|
||
{
|
||
theme_file = g_key_file_new ();
|
||
g_key_file_set_list_separator (theme_file, ',');
|
||
g_key_file_load_from_data (theme_file, builtin_hicolor_index, -1, 0, NULL);
|
||
}
|
||
else
|
||
return;
|
||
}
|
||
|
||
dirs = g_key_file_get_string_list (theme_file, "Icon Theme", "Directories", NULL, NULL);
|
||
if (!dirs)
|
||
{
|
||
g_warning ("Theme file for %s has no directories", theme_name);
|
||
g_key_file_free (theme_file);
|
||
return;
|
||
}
|
||
|
||
scaled_dirs = g_key_file_get_string_list (theme_file, "Icon Theme", "ScaledDirectories", NULL, NULL);
|
||
|
||
theme = theme_new (theme_name, theme_file);
|
||
self->themes = g_list_prepend (self->themes, theme);
|
||
|
||
for (i = 0; dirs[i] != NULL; i++)
|
||
theme_subdir_load (self, theme, theme_file, dirs[i]);
|
||
|
||
if (scaled_dirs)
|
||
{
|
||
for (i = 0; scaled_dirs[i] != NULL; i++)
|
||
theme_subdir_load (self, theme, theme_file, scaled_dirs[i]);
|
||
}
|
||
|
||
g_strfreev (dirs);
|
||
g_strfreev (scaled_dirs);
|
||
|
||
themes = g_key_file_get_string_list (theme_file,
|
||
"Icon Theme",
|
||
"Inherits",
|
||
NULL,
|
||
NULL);
|
||
if (themes)
|
||
{
|
||
for (i = 0; themes[i] != NULL; i++)
|
||
insert_theme (self, themes[i]);
|
||
|
||
g_strfreev (themes);
|
||
}
|
||
|
||
g_key_file_free (theme_file);
|
||
}
|
||
|
||
static void
|
||
free_unthemed_icon (UnthemedIcon *unthemed_icon)
|
||
{
|
||
g_free (unthemed_icon->svg_filename);
|
||
g_free (unthemed_icon->no_svg_filename);
|
||
g_slice_free (UnthemedIcon, unthemed_icon);
|
||
}
|
||
|
||
static void
|
||
strip_suffix_inline (char *filename)
|
||
{
|
||
gchar *dot;
|
||
|
||
if (g_str_has_suffix (filename, ".symbolic.png"))
|
||
filename[strlen(filename)-13] = 0;
|
||
|
||
dot = strrchr (filename, '.');
|
||
|
||
if (dot != NULL)
|
||
*dot = 0;
|
||
}
|
||
|
||
static gchar *
|
||
strip_suffix (const gchar *filename)
|
||
{
|
||
const gchar *dot;
|
||
|
||
if (g_str_has_suffix (filename, ".symbolic.png"))
|
||
return g_strndup (filename, strlen(filename)-13);
|
||
|
||
dot = strrchr (filename, '.');
|
||
|
||
if (dot == NULL)
|
||
return g_strdup (filename);
|
||
|
||
return g_strndup (filename, dot - filename);
|
||
}
|
||
|
||
static void
|
||
add_unthemed_icon (GtkIconTheme *self,
|
||
const gchar *dir,
|
||
const gchar *file,
|
||
gboolean is_resource)
|
||
{
|
||
IconCacheFlag new_suffix, old_suffix;
|
||
gchar *abs_file;
|
||
gchar *base_name;
|
||
UnthemedIcon *unthemed_icon;
|
||
|
||
new_suffix = suffix_from_name (file);
|
||
|
||
if (new_suffix == ICON_CACHE_FLAG_NONE)
|
||
return;
|
||
|
||
abs_file = g_build_filename (dir, file, NULL);
|
||
base_name = strip_suffix (file);
|
||
|
||
unthemed_icon = g_hash_table_lookup (self->unthemed_icons, base_name);
|
||
|
||
if (unthemed_icon)
|
||
{
|
||
if (new_suffix == ICON_CACHE_FLAG_SVG_SUFFIX)
|
||
{
|
||
if (unthemed_icon->svg_filename)
|
||
g_free (abs_file);
|
||
else
|
||
unthemed_icon->svg_filename = abs_file;
|
||
}
|
||
else
|
||
{
|
||
if (unthemed_icon->no_svg_filename)
|
||
{
|
||
old_suffix = suffix_from_name (unthemed_icon->no_svg_filename);
|
||
if (new_suffix > old_suffix)
|
||
{
|
||
g_free (unthemed_icon->no_svg_filename);
|
||
unthemed_icon->no_svg_filename = abs_file;
|
||
}
|
||
else
|
||
g_free (abs_file);
|
||
}
|
||
else
|
||
unthemed_icon->no_svg_filename = abs_file;
|
||
}
|
||
|
||
g_free (base_name);
|
||
}
|
||
else
|
||
{
|
||
unthemed_icon = g_slice_new0 (UnthemedIcon);
|
||
|
||
unthemed_icon->is_resource = is_resource;
|
||
|
||
if (new_suffix == ICON_CACHE_FLAG_SVG_SUFFIX)
|
||
unthemed_icon->svg_filename = abs_file;
|
||
else
|
||
unthemed_icon->no_svg_filename = abs_file;
|
||
|
||
/* takes ownership of base_name */
|
||
g_hash_table_replace (self->unthemed_icons, base_name, unthemed_icon);
|
||
}
|
||
}
|
||
|
||
static void
|
||
load_themes (GtkIconTheme *self)
|
||
{
|
||
GDir *gdir;
|
||
gint base;
|
||
gchar *dir;
|
||
const gchar *file;
|
||
GTimeVal tv;
|
||
IconThemeDirMtime *dir_mtime;
|
||
GStatBuf stat_buf;
|
||
GList *d;
|
||
|
||
if (self->current_theme)
|
||
insert_theme (self, self->current_theme);
|
||
|
||
insert_theme (self, FALLBACK_ICON_THEME);
|
||
self->themes = g_list_reverse (self->themes);
|
||
|
||
self->unthemed_icons = g_hash_table_new_full (g_str_hash, g_str_equal,
|
||
g_free, (GDestroyNotify)free_unthemed_icon);
|
||
|
||
for (base = 0; base < self->search_path_len; base++)
|
||
{
|
||
dir = self->search_path[base];
|
||
|
||
dir_mtime = g_slice_new (IconThemeDirMtime);
|
||
self->dir_mtimes = g_list_prepend (self->dir_mtimes, dir_mtime);
|
||
|
||
dir_mtime->dir = g_strdup (dir);
|
||
dir_mtime->mtime = 0;
|
||
dir_mtime->exists = FALSE;
|
||
dir_mtime->cache = NULL;
|
||
|
||
if (g_stat (dir, &stat_buf) != 0 || !S_ISDIR (stat_buf.st_mode))
|
||
continue;
|
||
dir_mtime->mtime = stat_buf.st_mtime;
|
||
dir_mtime->exists = TRUE;
|
||
|
||
dir_mtime->cache = gtk_icon_cache_new_for_path (dir);
|
||
if (dir_mtime->cache != NULL)
|
||
continue;
|
||
|
||
gdir = g_dir_open (dir, 0, NULL);
|
||
if (gdir == NULL)
|
||
continue;
|
||
|
||
while ((file = g_dir_read_name (gdir)))
|
||
add_unthemed_icon (self, dir, file, FALSE);
|
||
|
||
g_dir_close (gdir);
|
||
}
|
||
self->dir_mtimes = g_list_reverse (self->dir_mtimes);
|
||
|
||
for (d = self->resource_paths; d; d = d->next)
|
||
{
|
||
gchar **children;
|
||
gint i;
|
||
|
||
dir = d->data;
|
||
children = g_resources_enumerate_children (dir, 0, NULL);
|
||
if (!children)
|
||
continue;
|
||
|
||
for (i = 0; children[i]; i++)
|
||
add_unthemed_icon (self, dir, children[i], TRUE);
|
||
|
||
g_strfreev (children);
|
||
}
|
||
|
||
self->themes_valid = TRUE;
|
||
|
||
g_get_current_time (&tv);
|
||
self->last_stat_time = tv.tv_sec;
|
||
|
||
GTK_DISPLAY_NOTE (self->display, ICONTHEME, {
|
||
GList *l;
|
||
GString *s;
|
||
s = g_string_new ("Current icon themes ");
|
||
for (l = self->themes; l; l = l->next)
|
||
{
|
||
IconTheme *theme = l->data;
|
||
g_string_append (s, theme->name);
|
||
g_string_append_c (s, ' ');
|
||
}
|
||
g_message ("%s", s->str);
|
||
g_string_free (s, TRUE);
|
||
});
|
||
}
|
||
|
||
static gboolean
|
||
ensure_valid_themes (GtkIconTheme *self,
|
||
gboolean non_blocking)
|
||
{
|
||
GTimeVal tv;
|
||
gboolean was_valid = self->themes_valid;
|
||
|
||
if (self->themes_valid)
|
||
{
|
||
g_get_current_time (&tv);
|
||
|
||
if (ABS (tv.tv_sec - self->last_stat_time) > 5)
|
||
{
|
||
if (non_blocking)
|
||
return FALSE;
|
||
|
||
if (rescan_themes (self))
|
||
{
|
||
icon_cache_clear (self);
|
||
blow_themes (self);
|
||
}
|
||
}
|
||
}
|
||
|
||
if (!self->themes_valid)
|
||
{
|
||
gint64 before;
|
||
if (non_blocking)
|
||
return FALSE;
|
||
|
||
before = g_get_monotonic_time ();
|
||
|
||
load_themes (self);
|
||
|
||
if (GDK_PROFILER_IS_RUNNING)
|
||
gdk_profiler_end_mark (before, "icon theme load", self->current_theme);
|
||
|
||
if (was_valid)
|
||
queue_theme_changed (self);
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static inline gboolean
|
||
icon_name_is_symbolic (const gchar *icon_name,
|
||
int icon_name_len)
|
||
{
|
||
|
||
if (icon_name_len < 0)
|
||
icon_name_len = strlen (icon_name);
|
||
|
||
if (icon_name_len > strlen ("-symbolic"))
|
||
{
|
||
if (strcmp (icon_name + icon_name_len - strlen ("-symbolic"), "-symbolic") == 0)
|
||
return TRUE;
|
||
}
|
||
|
||
if (icon_name_len > strlen ("-symbolic-ltr"))
|
||
{
|
||
if (strcmp (icon_name + icon_name_len - strlen ("-symbolic-ltr"), "-symbolic-ltr") == 0 ||
|
||
strcmp (icon_name + icon_name_len - strlen ("-symbolic-rtl"), "-symbolic-rtl") == 0)
|
||
return TRUE;
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static inline gboolean
|
||
icon_uri_is_symbolic (const gchar *icon_name,
|
||
int icon_name_len)
|
||
{
|
||
if (icon_name_len < 0)
|
||
icon_name_len = strlen (icon_name);
|
||
|
||
if (icon_name_len > strlen ("-symbolic.svg"))
|
||
{
|
||
if (strcmp (icon_name + icon_name_len - strlen ("-symbolic.svg"), "-symbolic.svg") == 0 ||
|
||
strcmp (icon_name + icon_name_len - strlen (".symbolic.png"), ".symbolic.png") == 0)
|
||
return TRUE;
|
||
}
|
||
|
||
if (icon_name_len > strlen ("-symbolic-ltr.svg"))
|
||
{
|
||
if (strcmp (icon_name + icon_name_len - strlen ("-symbolic.ltr.svg"), "-symbolic-ltr.svg") == 0 ||
|
||
strcmp (icon_name + icon_name_len - strlen ("-symbolic.rtl.svg"), "-symbolic-rtl.svg") == 0)
|
||
return TRUE;
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static GtkIconPaintable *
|
||
real_choose_icon (GtkIconTheme *self,
|
||
const gchar *icon_names[],
|
||
gint size,
|
||
gint scale,
|
||
GtkIconLookupFlags flags,
|
||
gboolean non_blocking,
|
||
gboolean *would_block)
|
||
{
|
||
GList *l;
|
||
GtkIconPaintable *icon = NULL;
|
||
UnthemedIcon *unthemed_icon = NULL;
|
||
const gchar *icon_name = NULL;
|
||
IconTheme *theme = NULL;
|
||
gint i;
|
||
IconKey key;
|
||
|
||
if (!ensure_valid_themes (self, non_blocking))
|
||
{
|
||
*would_block = TRUE;
|
||
return NULL;
|
||
}
|
||
|
||
key.icon_names = (gchar **)icon_names;
|
||
key.size = size;
|
||
key.scale = scale;
|
||
key.flags = flags;
|
||
|
||
/* This is used in the icontheme unit test */
|
||
GTK_DISPLAY_NOTE (self->display, ICONTHEME,
|
||
for (i = 0; icon_names[i]; i++)
|
||
g_message ("\tlookup name: %s", icon_names[i]));
|
||
|
||
icon = icon_cache_lookup (self, &key);
|
||
if (icon)
|
||
return icon;
|
||
|
||
/* For symbolic icons, do a search in all registered themes first;
|
||
* a theme that inherits them from a parent theme might provide
|
||
* an alternative full-color version, but still expect the symbolic icon
|
||
* to show up instead.
|
||
*
|
||
* In other words: We prefer symbolic icons in inherited themes over
|
||
* generic icons in the theme.
|
||
*/
|
||
for (l = self->themes; l; l = l->next)
|
||
{
|
||
theme = l->data;
|
||
for (i = 0; icon_names[i] && icon_name_is_symbolic (icon_names[i], -1); i++)
|
||
{
|
||
icon_name = icon_names[i];
|
||
icon = theme_lookup_icon (theme, icon_name, size, scale, self->pixbuf_supports_svg);
|
||
if (icon)
|
||
goto out;
|
||
}
|
||
}
|
||
|
||
for (l = self->themes; l; l = l->next)
|
||
{
|
||
theme = l->data;
|
||
|
||
for (i = 0; icon_names[i]; i++)
|
||
{
|
||
icon_name = icon_names[i];
|
||
icon = theme_lookup_icon (theme, icon_name, size, scale, self->pixbuf_supports_svg);
|
||
if (icon)
|
||
goto out;
|
||
}
|
||
}
|
||
|
||
theme = NULL;
|
||
|
||
for (i = 0; icon_names[i]; i++)
|
||
{
|
||
unthemed_icon = g_hash_table_lookup (self->unthemed_icons, icon_names[i]);
|
||
if (unthemed_icon)
|
||
{
|
||
icon = icon_paintable_new (icon_names[i], size, scale);
|
||
|
||
/* A SVG icon, when allowed, beats out a XPM icon, but not a PNG icon */
|
||
if (self->pixbuf_supports_svg &&
|
||
unthemed_icon->svg_filename &&
|
||
(!unthemed_icon->no_svg_filename ||
|
||
suffix_from_name (unthemed_icon->no_svg_filename) < ICON_CACHE_FLAG_PNG_SUFFIX))
|
||
icon->filename = g_strdup (unthemed_icon->svg_filename);
|
||
else if (unthemed_icon->no_svg_filename)
|
||
icon->filename = g_strdup (unthemed_icon->no_svg_filename);
|
||
else
|
||
{
|
||
g_clear_object (&icon);
|
||
}
|
||
|
||
icon->is_svg = suffix_from_name (icon->filename) == ICON_CACHE_FLAG_SVG_SUFFIX;
|
||
icon->is_resource = unthemed_icon->is_resource;
|
||
|
||
if (icon)
|
||
goto out;
|
||
}
|
||
}
|
||
|
||
#ifdef G_OS_WIN32
|
||
/* Still not found an icon, check if reference to a Win32 resource */
|
||
{
|
||
gchar **resources;
|
||
HICON hIcon = NULL;
|
||
|
||
resources = g_strsplit (icon_names[0], ",", 0);
|
||
if (resources[0])
|
||
{
|
||
wchar_t *wfile = g_utf8_to_utf16 (resources[0], -1, NULL, NULL, NULL);
|
||
ExtractIconExW (wfile, resources[1] ? atoi (resources[1]) : 0, &hIcon, NULL, 1);
|
||
g_free (wfile);
|
||
}
|
||
|
||
if (hIcon)
|
||
{
|
||
icon = icon_paintable_new (resources[0], size, scale);
|
||
icon->win32_icon = gdk_win32_icon_to_pixbuf_libgtk_only (hIcon, NULL, NULL);
|
||
DestroyIcon (hIcon);
|
||
goto out;
|
||
}
|
||
g_strfreev (resources);
|
||
}
|
||
#endif
|
||
|
||
|
||
/* Fall back to missing icon */
|
||
if (icon == NULL)
|
||
{
|
||
icon = icon_paintable_new ("image-missing", size, scale);
|
||
icon->filename = g_strdup (IMAGE_MISSING_RESOURCE_PATH);
|
||
icon->is_resource = TRUE;
|
||
}
|
||
|
||
out:
|
||
g_assert (icon != NULL);
|
||
|
||
icon->key.icon_names = g_strdupv ((char **)icon_names);
|
||
icon->key.size = size;
|
||
icon->key.scale = scale;
|
||
icon->key.flags = flags;
|
||
|
||
icon_cache_add (self, icon);
|
||
|
||
return icon;
|
||
}
|
||
|
||
static void
|
||
icon_name_list_add_icon (GPtrArray *icons,
|
||
const gchar *dir_suffix,
|
||
gchar *icon_name)
|
||
{
|
||
if (dir_suffix)
|
||
g_ptr_array_add (icons, g_strconcat (icon_name, dir_suffix, NULL));
|
||
g_ptr_array_add (icons, icon_name);
|
||
}
|
||
|
||
static GtkIconPaintable *
|
||
choose_icon (GtkIconTheme *self,
|
||
const gchar *icon_names[],
|
||
gint size,
|
||
gint scale,
|
||
GtkTextDirection direction,
|
||
GtkIconLookupFlags flags,
|
||
gboolean non_blocking,
|
||
gboolean *would_block)
|
||
{
|
||
gboolean has_regular = FALSE, has_symbolic = FALSE;
|
||
GtkIconPaintable *icon;
|
||
GPtrArray *new_names;
|
||
const gchar *dir_suffix;
|
||
guint i;
|
||
|
||
switch (direction)
|
||
{
|
||
case GTK_TEXT_DIR_NONE:
|
||
dir_suffix = NULL;
|
||
break;
|
||
case GTK_TEXT_DIR_LTR:
|
||
dir_suffix = "-ltr";
|
||
break;
|
||
case GTK_TEXT_DIR_RTL:
|
||
dir_suffix = "-rtl";
|
||
break;
|
||
default:
|
||
g_assert_not_reached();
|
||
dir_suffix = NULL;
|
||
break;
|
||
}
|
||
|
||
for (i = 0; icon_names[i]; i++)
|
||
{
|
||
if (icon_name_is_symbolic (icon_names[i], -1))
|
||
has_symbolic = TRUE;
|
||
else
|
||
has_regular = TRUE;
|
||
}
|
||
|
||
if ((flags & GTK_ICON_LOOKUP_FORCE_REGULAR) && has_symbolic)
|
||
{
|
||
new_names = g_ptr_array_new_with_free_func (g_free);
|
||
for (i = 0; icon_names[i]; i++)
|
||
{
|
||
if (icon_name_is_symbolic (icon_names[i], -1))
|
||
icon_name_list_add_icon (new_names, dir_suffix, g_strndup (icon_names[i], strlen (icon_names[i]) - strlen ("-symbolic")));
|
||
else
|
||
icon_name_list_add_icon (new_names, dir_suffix, g_strdup (icon_names[i]));
|
||
}
|
||
for (i = 0; icon_names[i]; i++)
|
||
{
|
||
if (icon_name_is_symbolic (icon_names[i], -1))
|
||
icon_name_list_add_icon (new_names, dir_suffix, g_strdup (icon_names[i]));
|
||
}
|
||
g_ptr_array_add (new_names, NULL);
|
||
|
||
icon = real_choose_icon (self,
|
||
(const gchar **) new_names->pdata,
|
||
size,
|
||
scale,
|
||
flags & ~(GTK_ICON_LOOKUP_FORCE_REGULAR | GTK_ICON_LOOKUP_FORCE_SYMBOLIC),
|
||
non_blocking, would_block);
|
||
|
||
g_ptr_array_free (new_names, TRUE);
|
||
}
|
||
else if ((flags & GTK_ICON_LOOKUP_FORCE_SYMBOLIC) && has_regular)
|
||
{
|
||
new_names = g_ptr_array_new_with_free_func (g_free);
|
||
for (i = 0; icon_names[i]; i++)
|
||
{
|
||
if (!icon_name_is_symbolic (icon_names[i], -1))
|
||
icon_name_list_add_icon (new_names, dir_suffix, g_strconcat (icon_names[i], "-symbolic", NULL));
|
||
else
|
||
icon_name_list_add_icon (new_names, dir_suffix, g_strdup (icon_names[i]));
|
||
}
|
||
for (i = 0; icon_names[i]; i++)
|
||
{
|
||
if (!icon_name_is_symbolic (icon_names[i], -1))
|
||
icon_name_list_add_icon (new_names, dir_suffix, g_strdup (icon_names[i]));
|
||
}
|
||
g_ptr_array_add (new_names, NULL);
|
||
|
||
icon = real_choose_icon (self,
|
||
(const gchar **) new_names->pdata,
|
||
size,
|
||
scale,
|
||
flags & ~(GTK_ICON_LOOKUP_FORCE_REGULAR | GTK_ICON_LOOKUP_FORCE_SYMBOLIC),
|
||
non_blocking, would_block);
|
||
|
||
g_ptr_array_free (new_names, TRUE);
|
||
}
|
||
else if (dir_suffix)
|
||
{
|
||
new_names = g_ptr_array_new_with_free_func (g_free);
|
||
for (i = 0; icon_names[i]; i++)
|
||
{
|
||
icon_name_list_add_icon (new_names, dir_suffix, g_strdup (icon_names[i]));
|
||
}
|
||
g_ptr_array_add (new_names, NULL);
|
||
|
||
icon = real_choose_icon (self,
|
||
(const gchar **) new_names->pdata,
|
||
size,
|
||
scale,
|
||
flags & ~(GTK_ICON_LOOKUP_FORCE_REGULAR | GTK_ICON_LOOKUP_FORCE_SYMBOLIC),
|
||
non_blocking, would_block);
|
||
|
||
g_ptr_array_free (new_names, TRUE);
|
||
}
|
||
else
|
||
{
|
||
icon = real_choose_icon (self,
|
||
icon_names,
|
||
size,
|
||
scale,
|
||
flags & ~(GTK_ICON_LOOKUP_FORCE_REGULAR | GTK_ICON_LOOKUP_FORCE_SYMBOLIC),
|
||
non_blocking, would_block);
|
||
}
|
||
|
||
return icon;
|
||
}
|
||
|
||
static void
|
||
load_icon_thread (GTask *task,
|
||
gpointer source_object,
|
||
gpointer task_data,
|
||
GCancellable *cancellable)
|
||
{
|
||
GtkIconPaintable *self = GTK_ICON_PAINTABLE (source_object);
|
||
|
||
g_mutex_lock (&self->texture_lock);
|
||
icon_ensure_texture__locked (self, TRUE);
|
||
g_mutex_unlock (&self->texture_lock);
|
||
g_task_return_pointer (task, NULL, NULL);
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_theme_lookup_icon:
|
||
* @self: a #GtkIconTheme
|
||
* @icon_name: the name of the icon to lookup
|
||
* @fallbacks: (nullable) (array zero-terminated=1):
|
||
* @size: desired icon size.
|
||
* @scale: the window scale this will be displayed on
|
||
* @direction: text direction the icon will be displayed in
|
||
* @flags: flags modifying the behavior of the icon lookup
|
||
*
|
||
* Looks up a named icon for a desired size and window scale, returning a
|
||
* #GtkIcon. The icon can then be rendered by using it as a #GdkPaintable,
|
||
* or you can get information such as the filename and size.
|
||
*
|
||
* If the available @icon_name is not available and @fallbacks are provided,
|
||
* they will be tried in order.
|
||
*
|
||
* If no matching icon is found, then a paintable that renders the
|
||
* "missing icon" icon is returned. If you need to do something else
|
||
* for missing icons you need to use gtk_icon_theme_has_icon().
|
||
*
|
||
* Note that you probably want to listen for icon theme changes and
|
||
* update the icon. This is usually done by overriding the
|
||
* #GtkWidget:css-changed function.
|
||
*
|
||
* Returns: (transfer full): a #GtkIconPaintable object
|
||
* containing the icon.
|
||
*/
|
||
GtkIconPaintable *
|
||
gtk_icon_theme_lookup_icon (GtkIconTheme *self,
|
||
const char *icon_name,
|
||
const char *fallbacks[],
|
||
gint size,
|
||
gint scale,
|
||
GtkTextDirection direction,
|
||
GtkIconLookupFlags flags)
|
||
{
|
||
GtkIconPaintable *icon;
|
||
|
||
g_return_val_if_fail (GTK_IS_ICON_THEME (self), NULL);
|
||
g_return_val_if_fail (icon_name != NULL, NULL);
|
||
g_return_val_if_fail (scale >= 1, NULL);
|
||
|
||
GTK_DISPLAY_NOTE (self->display, ICONTHEME,
|
||
g_message ("looking up icon %s for scale %d", icon_name, scale));
|
||
|
||
gtk_icon_theme_lock (self);
|
||
|
||
if (fallbacks)
|
||
{
|
||
gsize n_fallbacks = g_strv_length ((char **) fallbacks);
|
||
const char **names = g_new (const char *, n_fallbacks + 2);
|
||
|
||
names[0] = icon_name;
|
||
memcpy (&names[1], fallbacks, sizeof (char *) * n_fallbacks);
|
||
names[n_fallbacks + 1] = NULL;
|
||
|
||
icon = choose_icon (self, names, size, scale, direction, flags, FALSE, NULL);
|
||
|
||
g_free (names);
|
||
}
|
||
else
|
||
{
|
||
const gchar *names[2];
|
||
|
||
names[0] = icon_name;
|
||
names[1] = NULL;
|
||
|
||
icon = choose_icon (self, names, size, scale, direction, flags, FALSE, NULL);
|
||
}
|
||
|
||
gtk_icon_theme_unlock (self);
|
||
|
||
if (flags & GTK_ICON_LOOKUP_PRELOAD)
|
||
{
|
||
gboolean has_texture = FALSE;
|
||
|
||
/* If we fail to get the lock it is because some other thread is
|
||
currently loading the icon, so we need to do nothing */
|
||
if (g_mutex_trylock (&icon->texture_lock))
|
||
{
|
||
has_texture = icon->texture != NULL;
|
||
g_mutex_unlock (&icon->texture_lock);
|
||
|
||
if (!has_texture)
|
||
{
|
||
GTask *task = g_task_new (icon, NULL, NULL, NULL);
|
||
g_task_run_in_thread (task, load_icon_thread);
|
||
g_object_unref (task);
|
||
}
|
||
}
|
||
}
|
||
|
||
return icon;
|
||
}
|
||
|
||
/* Error quark */
|
||
GQuark
|
||
gtk_icon_theme_error_quark (void)
|
||
{
|
||
return g_quark_from_static_string ("gtk-icon-theme-error-quark");
|
||
}
|
||
|
||
void
|
||
gtk_icon_theme_lookup_symbolic_colors (GtkCssStyle *style,
|
||
GdkRGBA *color_out,
|
||
GdkRGBA *success_out,
|
||
GdkRGBA *warning_out,
|
||
GdkRGBA *error_out)
|
||
{
|
||
GtkCssValue *palette, *color;
|
||
const GdkRGBA *lookup;
|
||
|
||
color = style->core->color;
|
||
palette = style->core->icon_palette;
|
||
*color_out = *gtk_css_color_value_get_rgba (color);
|
||
|
||
lookup = gtk_css_palette_value_get_color (palette, "success");
|
||
if (lookup)
|
||
*success_out = *lookup;
|
||
else
|
||
*success_out = *color_out;
|
||
|
||
lookup = gtk_css_palette_value_get_color (palette, "warning");
|
||
if (lookup)
|
||
*warning_out = *lookup;
|
||
else
|
||
*warning_out = *color_out;
|
||
|
||
lookup = gtk_css_palette_value_get_color (palette, "error");
|
||
if (lookup)
|
||
*error_out = *lookup;
|
||
else
|
||
*error_out = *color_out;
|
||
}
|
||
|
||
|
||
/**
|
||
* gtk_icon_theme_has_icon:
|
||
* @self: a #GtkIconTheme
|
||
* @icon_name: the name of an icon
|
||
*
|
||
* Checks whether an icon theme includes an icon
|
||
* for a particular name.
|
||
*
|
||
* Returns: %TRUE if @self includes an
|
||
* icon for @icon_name.
|
||
*/
|
||
gboolean
|
||
gtk_icon_theme_has_icon (GtkIconTheme *self,
|
||
const gchar *icon_name)
|
||
{
|
||
GList *l;
|
||
gboolean res = FALSE;
|
||
|
||
g_return_val_if_fail (GTK_IS_ICON_THEME (self), FALSE);
|
||
g_return_val_if_fail (icon_name != NULL, FALSE);
|
||
|
||
gtk_icon_theme_lock (self);
|
||
|
||
ensure_valid_themes (self, FALSE);
|
||
|
||
for (l = self->themes; l; l = l->next)
|
||
{
|
||
if (theme_has_icon (l->data, icon_name))
|
||
{
|
||
res = TRUE;
|
||
goto out;
|
||
}
|
||
}
|
||
|
||
out:
|
||
gtk_icon_theme_unlock (self);
|
||
|
||
return res;
|
||
}
|
||
|
||
static void
|
||
add_size (gpointer key,
|
||
gpointer value,
|
||
gpointer user_data)
|
||
{
|
||
gint **res_p = user_data;
|
||
|
||
**res_p = GPOINTER_TO_INT (key);
|
||
|
||
(*res_p)++;
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_theme_get_icon_sizes:
|
||
* @self: a #GtkIconTheme
|
||
* @icon_name: the name of an icon
|
||
*
|
||
* Returns an array of integers describing the sizes at which
|
||
* the icon is available without scaling. A size of -1 means
|
||
* that the icon is available in a scalable format. The array
|
||
* is zero-terminated.
|
||
*
|
||
* Returns: (array zero-terminated=1) (transfer full): A newly
|
||
* allocated array describing the sizes at which the icon is
|
||
* available. The array should be freed with g_free() when it is no
|
||
* longer needed.
|
||
*/
|
||
gint *
|
||
gtk_icon_theme_get_icon_sizes (GtkIconTheme *self,
|
||
const gchar *icon_name)
|
||
{
|
||
GList *l;
|
||
int i;
|
||
GHashTable *sizes;
|
||
gint *result, *r;
|
||
|
||
g_return_val_if_fail (GTK_IS_ICON_THEME (self), NULL);
|
||
|
||
gtk_icon_theme_lock (self);
|
||
|
||
ensure_valid_themes (self, FALSE);
|
||
|
||
sizes = g_hash_table_new (g_direct_hash, g_direct_equal);
|
||
|
||
for (l = self->themes; l; l = l->next)
|
||
{
|
||
IconTheme *theme = l->data;
|
||
const char *interned_icon_name = gtk_string_set_lookup (&theme->icons, icon_name);
|
||
|
||
for (i = 0; i < theme->dir_sizes->len; i++)
|
||
{
|
||
IconThemeDirSize *dir_size = &g_array_index (theme->dir_sizes, IconThemeDirSize, i);
|
||
|
||
if (dir_size->type != ICON_THEME_DIR_SCALABLE && g_hash_table_lookup_extended (sizes, GINT_TO_POINTER (dir_size->size), NULL, NULL))
|
||
continue;
|
||
|
||
if (!g_hash_table_contains (dir_size->icon_hash, interned_icon_name))
|
||
continue;
|
||
|
||
if (dir_size->type == ICON_THEME_DIR_SCALABLE)
|
||
g_hash_table_insert (sizes, GINT_TO_POINTER (-1), NULL);
|
||
else
|
||
g_hash_table_insert (sizes, GINT_TO_POINTER (dir_size->size), NULL);
|
||
}
|
||
}
|
||
|
||
r = result = g_new0 (gint, g_hash_table_size (sizes) + 1);
|
||
|
||
g_hash_table_foreach (sizes, add_size, &r);
|
||
g_hash_table_destroy (sizes);
|
||
|
||
gtk_icon_theme_unlock (self);
|
||
|
||
return result;
|
||
}
|
||
|
||
static void
|
||
add_key_to_hash (gpointer key,
|
||
gpointer value,
|
||
gpointer user_data)
|
||
{
|
||
GHashTable *hash = user_data;
|
||
|
||
g_hash_table_insert (hash, key, key);
|
||
}
|
||
|
||
static void
|
||
add_key_to_list (gpointer key,
|
||
gpointer value,
|
||
gpointer user_data)
|
||
{
|
||
GList **list = user_data;
|
||
|
||
*list = g_list_prepend (*list, g_strdup (key));
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_theme_list_icons:
|
||
* @self: a #GtkIconTheme
|
||
*
|
||
* Lists the icons in the current icon theme.
|
||
*
|
||
* Returns: (element-type utf8) (transfer full): a #GList list
|
||
* holding the names of all the icons in the theme. You must
|
||
* first free each element in the list with g_free(), then
|
||
* free the list itself with g_list_free().
|
||
*/
|
||
GList *
|
||
gtk_icon_theme_list_icons (GtkIconTheme *self)
|
||
{
|
||
GHashTable *icons;
|
||
GList *list, *l;
|
||
|
||
gtk_icon_theme_lock (self);
|
||
|
||
ensure_valid_themes (self, FALSE);
|
||
|
||
icons = g_hash_table_new (g_str_hash, g_str_equal);
|
||
|
||
l = self->themes;
|
||
while (l != NULL)
|
||
{
|
||
IconTheme *theme = l->data;
|
||
gtk_string_set_list (&theme->icons, icons);
|
||
l = l->next;
|
||
}
|
||
|
||
g_hash_table_foreach (self->unthemed_icons,
|
||
add_key_to_hash,
|
||
icons);
|
||
|
||
list = NULL;
|
||
|
||
g_hash_table_foreach (icons,
|
||
add_key_to_list,
|
||
&list);
|
||
|
||
g_hash_table_destroy (icons);
|
||
|
||
gtk_icon_theme_unlock (self);
|
||
|
||
return list;
|
||
}
|
||
|
||
static gboolean
|
||
rescan_themes (GtkIconTheme *self)
|
||
{
|
||
IconThemeDirMtime *dir_mtime;
|
||
GList *d;
|
||
gint stat_res;
|
||
GStatBuf stat_buf;
|
||
GTimeVal tv;
|
||
|
||
for (d = self->dir_mtimes; d != NULL; d = d->next)
|
||
{
|
||
dir_mtime = d->data;
|
||
|
||
stat_res = g_stat (dir_mtime->dir, &stat_buf);
|
||
|
||
/* dir mtime didn't change */
|
||
if (stat_res == 0 && dir_mtime->exists &&
|
||
S_ISDIR (stat_buf.st_mode) &&
|
||
dir_mtime->mtime == stat_buf.st_mtime)
|
||
continue;
|
||
/* didn't exist before, and still doesn't */
|
||
if (!dir_mtime->exists &&
|
||
(stat_res != 0 || !S_ISDIR (stat_buf.st_mode)))
|
||
continue;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
g_get_current_time (&tv);
|
||
self->last_stat_time = tv.tv_sec;
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static IconTheme *
|
||
theme_new (const char *theme_name,
|
||
GKeyFile *theme_file)
|
||
{
|
||
IconTheme *theme;
|
||
|
||
theme = g_new0 (IconTheme, 1);
|
||
theme->name = g_strdup (theme_name);
|
||
theme->dir_sizes = g_array_new (FALSE, FALSE, sizeof (IconThemeDirSize));
|
||
theme->dirs = g_array_new (FALSE, FALSE, sizeof (IconThemeDir));
|
||
gtk_string_set_init (&theme->icons);
|
||
|
||
theme->display_name =
|
||
g_key_file_get_locale_string (theme_file, "Icon Theme", "Name", NULL, NULL);
|
||
if (!theme->display_name)
|
||
g_warning ("Theme file for %s has no name", theme_name);
|
||
|
||
theme->comment =
|
||
g_key_file_get_locale_string (theme_file,
|
||
"Icon Theme", "Comment",
|
||
NULL, NULL);
|
||
return theme;
|
||
}
|
||
|
||
static void
|
||
theme_destroy (IconTheme *theme)
|
||
{
|
||
gsize i;
|
||
|
||
g_free (theme->name);
|
||
g_free (theme->display_name);
|
||
g_free (theme->comment);
|
||
|
||
for (i = 0; i < theme->dir_sizes->len; i++)
|
||
theme_dir_size_destroy (&g_array_index (theme->dir_sizes, IconThemeDirSize, i));
|
||
g_array_free (theme->dir_sizes, TRUE);
|
||
|
||
for (i = 0; i < theme->dirs->len; i++)
|
||
theme_dir_destroy (&g_array_index (theme->dirs, IconThemeDir, i));
|
||
g_array_free (theme->dirs, TRUE);
|
||
|
||
gtk_string_set_destroy (&theme->icons);
|
||
|
||
g_free (theme);
|
||
}
|
||
|
||
static void
|
||
theme_dir_size_destroy (IconThemeDirSize *dir)
|
||
{
|
||
if (dir->icon_hash)
|
||
g_hash_table_destroy (dir->icon_hash);
|
||
if (dir->icon_files)
|
||
g_array_free (dir->icon_files, TRUE);
|
||
}
|
||
|
||
static void
|
||
theme_dir_destroy (IconThemeDir *dir)
|
||
{
|
||
g_free (dir->path);
|
||
}
|
||
|
||
static int
|
||
theme_dir_size_difference (IconThemeDirSize *dir_size,
|
||
gint size,
|
||
gint scale)
|
||
{
|
||
gint scaled_size, scaled_dir_size;
|
||
gint min, max;
|
||
|
||
scaled_size = size * scale;
|
||
scaled_dir_size = dir_size->size * dir_size->scale;
|
||
|
||
switch (dir_size->type)
|
||
{
|
||
case ICON_THEME_DIR_FIXED:
|
||
return abs (scaled_size - scaled_dir_size);
|
||
|
||
case ICON_THEME_DIR_SCALABLE:
|
||
if (scaled_size < (dir_size->min_size * dir_size->scale))
|
||
return (dir_size->min_size * dir_size->scale) - scaled_size;
|
||
if (size > (dir_size->max_size * dir_size->scale))
|
||
return scaled_size - (dir_size->max_size * dir_size->scale);
|
||
return 0;
|
||
|
||
case ICON_THEME_DIR_THRESHOLD:
|
||
min = (dir_size->size - dir_size->threshold) * dir_size->scale;
|
||
max = (dir_size->size + dir_size->threshold) * dir_size->scale;
|
||
if (scaled_size < min)
|
||
return min - scaled_size;
|
||
if (scaled_size > max)
|
||
return scaled_size - max;
|
||
return 0;
|
||
|
||
case ICON_THEME_DIR_UNTHEMED:
|
||
default:
|
||
g_assert_not_reached ();
|
||
return 1000;
|
||
}
|
||
}
|
||
|
||
static const gchar *
|
||
string_from_suffix (IconCacheFlag suffix)
|
||
{
|
||
switch (suffix)
|
||
{
|
||
case ICON_CACHE_FLAG_XPM_SUFFIX:
|
||
return ".xpm";
|
||
case ICON_CACHE_FLAG_SVG_SUFFIX:
|
||
return ".svg";
|
||
case ICON_CACHE_FLAG_PNG_SUFFIX:
|
||
return ".png";
|
||
case ICON_CACHE_FLAG_SYMBOLIC_PNG_SUFFIX:
|
||
return ".symbolic.png";
|
||
case ICON_CACHE_FLAG_NONE:
|
||
case ICON_CACHE_FLAG_HAS_ICON_FILE:
|
||
default:
|
||
g_assert_not_reached();
|
||
return NULL;
|
||
}
|
||
}
|
||
|
||
static inline IconCacheFlag
|
||
suffix_from_name (const gchar *name)
|
||
{
|
||
const gsize name_len = strlen (name);
|
||
|
||
if (name_len > 4)
|
||
{
|
||
if (name_len > strlen (".symbolic.png"))
|
||
{
|
||
if (strcmp (name + name_len - strlen (".symbolic.png"), ".symbolic.png") == 0)
|
||
return ICON_CACHE_FLAG_SYMBOLIC_PNG_SUFFIX;
|
||
}
|
||
|
||
if (strcmp (name + name_len - strlen (".png"), ".png") == 0)
|
||
return ICON_CACHE_FLAG_PNG_SUFFIX;
|
||
|
||
if (strcmp (name + name_len - strlen (".svg"), ".svg") == 0)
|
||
return ICON_CACHE_FLAG_SVG_SUFFIX;
|
||
|
||
if (strcmp (name + name_len - strlen (".xpm"), ".xpm") == 0)
|
||
return ICON_CACHE_FLAG_XPM_SUFFIX;
|
||
}
|
||
|
||
return ICON_CACHE_FLAG_NONE;
|
||
}
|
||
|
||
static IconCacheFlag
|
||
best_suffix (IconCacheFlag suffix,
|
||
gboolean allow_svg)
|
||
{
|
||
if ((suffix & ICON_CACHE_FLAG_SYMBOLIC_PNG_SUFFIX) != 0)
|
||
return ICON_CACHE_FLAG_SYMBOLIC_PNG_SUFFIX;
|
||
else if ((suffix & ICON_CACHE_FLAG_PNG_SUFFIX) != 0)
|
||
return ICON_CACHE_FLAG_PNG_SUFFIX;
|
||
else if (allow_svg && ((suffix & ICON_CACHE_FLAG_SVG_SUFFIX) != 0))
|
||
return ICON_CACHE_FLAG_SVG_SUFFIX;
|
||
else if ((suffix & ICON_CACHE_FLAG_XPM_SUFFIX) != 0)
|
||
return ICON_CACHE_FLAG_XPM_SUFFIX;
|
||
else
|
||
return ICON_CACHE_FLAG_NONE;
|
||
}
|
||
|
||
/* returns TRUE if dir_a is a better match */
|
||
static gboolean
|
||
compare_dir_size_matches (IconThemeDirSize *dir_a, gint difference_a,
|
||
IconThemeDirSize *dir_b, gint difference_b,
|
||
gint requested_size,
|
||
gint requested_scale)
|
||
{
|
||
gint diff_a;
|
||
gint diff_b;
|
||
|
||
if (difference_a == 0)
|
||
{
|
||
if (difference_b != 0)
|
||
return TRUE;
|
||
|
||
/* a and b both exact matches */
|
||
}
|
||
else
|
||
{
|
||
/* If scaling, *always* prefer downscaling */
|
||
if (dir_a->size >= requested_size &&
|
||
dir_b->size < requested_size)
|
||
return TRUE;
|
||
|
||
if (dir_a->size < requested_size &&
|
||
dir_b->size >= requested_size)
|
||
return FALSE;
|
||
|
||
/* Otherwise prefer the closest match */
|
||
|
||
if (difference_a < difference_b)
|
||
return TRUE;
|
||
|
||
if (difference_a > difference_b)
|
||
return FALSE;
|
||
|
||
/* same pixel difference */
|
||
}
|
||
|
||
if (dir_a->scale == requested_scale &&
|
||
dir_b->scale != requested_scale)
|
||
return TRUE;
|
||
|
||
if (dir_a->scale != requested_scale &&
|
||
dir_b->scale == requested_scale)
|
||
return FALSE;
|
||
|
||
/* a and b both match the scale */
|
||
|
||
if (dir_a->type != ICON_THEME_DIR_SCALABLE &&
|
||
dir_b->type == ICON_THEME_DIR_SCALABLE)
|
||
return TRUE;
|
||
|
||
if (dir_a->type == ICON_THEME_DIR_SCALABLE &&
|
||
dir_b->type != ICON_THEME_DIR_SCALABLE)
|
||
return FALSE;
|
||
|
||
/* a and b both are scalable */
|
||
|
||
diff_a = abs (requested_size * requested_scale - dir_a->size * dir_a->scale);
|
||
diff_b = abs (requested_size * requested_scale - dir_b->size * dir_b->scale);
|
||
|
||
return diff_a <= diff_b;
|
||
}
|
||
|
||
static GtkIconPaintable *
|
||
theme_lookup_icon (IconTheme *theme,
|
||
const gchar *icon_name, /* interned */
|
||
gint size,
|
||
gint scale,
|
||
gboolean allow_svg)
|
||
{
|
||
IconThemeDirSize *min_dir_size;
|
||
IconThemeFile *min_file;
|
||
gint min_difference;
|
||
IconCacheFlag min_suffix;
|
||
int i;
|
||
|
||
/* Its not uncommon with misses, so we do an early check which allows us do
|
||
* do a lot less work.
|
||
* We also intern the name so later hash lookups are faster. */
|
||
icon_name = gtk_string_set_lookup (&theme->icons, icon_name);
|
||
if (icon_name == NULL)
|
||
return FALSE;
|
||
|
||
min_difference = G_MAXINT;
|
||
min_dir_size = NULL;
|
||
|
||
for (i = 0; i < theme->dir_sizes->len; i++)
|
||
{
|
||
IconThemeDirSize *dir_size = &g_array_index (theme->dir_sizes, IconThemeDirSize, i);
|
||
IconThemeFile *file;
|
||
guint best_suffix;
|
||
gint difference;
|
||
gpointer file_index;
|
||
|
||
if (!g_hash_table_lookup_extended (dir_size->icon_hash, icon_name, NULL, &file_index))
|
||
continue;
|
||
|
||
file = &g_array_index (dir_size->icon_files, IconThemeFile, GPOINTER_TO_INT(file_index));
|
||
|
||
|
||
if (allow_svg)
|
||
best_suffix = file->best_suffix;
|
||
else
|
||
best_suffix = file->best_suffix_no_svg;
|
||
|
||
if (best_suffix == ICON_CACHE_FLAG_NONE)
|
||
continue;
|
||
|
||
difference = theme_dir_size_difference (dir_size, size, scale);
|
||
if (min_dir_size == NULL ||
|
||
compare_dir_size_matches (dir_size, difference,
|
||
min_dir_size, min_difference,
|
||
size, scale))
|
||
{
|
||
min_dir_size = dir_size;
|
||
min_file = file;
|
||
min_suffix = best_suffix;
|
||
min_difference = difference;
|
||
}
|
||
}
|
||
|
||
if (min_dir_size)
|
||
{
|
||
GtkIconPaintable *icon;
|
||
IconThemeDir *dir = &g_array_index (theme->dirs, IconThemeDir, min_file->dir_index);
|
||
gchar *filename;
|
||
|
||
icon = icon_paintable_new (icon_name, size, scale);
|
||
|
||
filename = g_strconcat (icon_name, string_from_suffix (min_suffix), NULL);
|
||
icon->filename = g_build_filename (dir->path, filename, NULL);
|
||
icon->is_svg = min_suffix == ICON_CACHE_FLAG_SVG_SUFFIX;
|
||
icon->is_resource = dir->is_resource;
|
||
icon->is_symbolic = icon_uri_is_symbolic (filename, -1);
|
||
g_free (filename);
|
||
|
||
return icon;
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
static gboolean
|
||
theme_has_icon (IconTheme *theme,
|
||
const gchar *icon_name)
|
||
{
|
||
return gtk_string_set_lookup (&theme->icons, icon_name) != NULL;
|
||
}
|
||
|
||
static GHashTable *
|
||
scan_directory (GtkIconTheme *self,
|
||
char *full_dir,
|
||
GtkStringSet *set)
|
||
{
|
||
GDir *gdir;
|
||
const gchar *name;
|
||
GHashTable *icons = NULL;
|
||
|
||
GTK_DISPLAY_NOTE (self->display, ICONTHEME,
|
||
g_message ("scanning directory %s", full_dir));
|
||
|
||
gdir = g_dir_open (full_dir, 0, NULL);
|
||
|
||
if (gdir == NULL)
|
||
return NULL;
|
||
|
||
while ((name = g_dir_read_name (gdir)))
|
||
{
|
||
const char *interned;
|
||
IconCacheFlag suffix, hash_suffix;
|
||
|
||
suffix = suffix_from_name (name);
|
||
if (suffix == ICON_CACHE_FLAG_NONE)
|
||
continue;
|
||
|
||
strip_suffix_inline ((char *)name);
|
||
interned = gtk_string_set_add (set, name);
|
||
|
||
if (!icons)
|
||
icons = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, NULL);
|
||
|
||
hash_suffix = GPOINTER_TO_INT (g_hash_table_lookup (icons, interned));
|
||
/* takes ownership of base_name */
|
||
g_hash_table_replace (icons, (char *)interned, GUINT_TO_POINTER (hash_suffix|suffix));
|
||
}
|
||
|
||
g_dir_close (gdir);
|
||
|
||
return icons;
|
||
}
|
||
|
||
static GHashTable *
|
||
scan_resource_directory (GtkIconTheme *self,
|
||
char *full_dir,
|
||
GtkStringSet *set)
|
||
{
|
||
GHashTable *icons = NULL;
|
||
char **children;
|
||
int i;
|
||
|
||
GTK_DISPLAY_NOTE (self->display, ICONTHEME,
|
||
g_message ("scanning resource directory %s", full_dir));
|
||
|
||
children = g_resources_enumerate_children (full_dir, 0, NULL);
|
||
|
||
if (children)
|
||
{
|
||
for (i = 0; children[i]; i++)
|
||
{
|
||
char *name = children[i];
|
||
const char *interned;
|
||
IconCacheFlag suffix, hash_suffix;
|
||
|
||
suffix = suffix_from_name (name);
|
||
if (suffix == ICON_CACHE_FLAG_NONE)
|
||
continue;
|
||
|
||
if (!icons)
|
||
icons = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, NULL);
|
||
|
||
strip_suffix_inline (name);
|
||
interned = gtk_string_set_add (set, name);
|
||
|
||
hash_suffix = GPOINTER_TO_INT (g_hash_table_lookup (icons, interned));
|
||
/* takes ownership of base_name */
|
||
g_hash_table_replace (icons, (char *)interned, GUINT_TO_POINTER (hash_suffix|suffix));
|
||
}
|
||
|
||
g_strfreev (children);
|
||
}
|
||
|
||
return icons;
|
||
}
|
||
|
||
static gboolean
|
||
theme_dir_size_equal (IconThemeDirSize *a,
|
||
IconThemeDirSize *b)
|
||
{
|
||
return
|
||
a->type == b->type &&
|
||
a->size == b->size &&
|
||
a->min_size == b->min_size &&
|
||
a->max_size == b->max_size &&
|
||
a->threshold == b->threshold &&
|
||
a->scale == b->scale;
|
||
}
|
||
|
||
static guint32
|
||
theme_ensure_dir_size (IconTheme *theme,
|
||
IconThemeDirType type,
|
||
gint size,
|
||
gint min_size,
|
||
gint max_size,
|
||
gint threshold,
|
||
gint scale)
|
||
{
|
||
guint32 index;
|
||
IconThemeDirSize new = { 0 };
|
||
|
||
new.type = type;
|
||
new.size = size;
|
||
new.min_size = min_size;
|
||
new.max_size = max_size;
|
||
new.threshold = threshold;
|
||
new.scale = scale;
|
||
|
||
for (index = 0; index < theme->dir_sizes->len; index++)
|
||
{
|
||
IconThemeDirSize *dir_size = &g_array_index (theme->dir_sizes, IconThemeDirSize, index);
|
||
|
||
if (theme_dir_size_equal (dir_size, &new))
|
||
return index;
|
||
}
|
||
|
||
new.icon_files = g_array_new (FALSE, FALSE, sizeof (IconThemeFile));
|
||
/* The keys are interned strings, so use direct hash/equal */
|
||
new.icon_hash = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, NULL);
|
||
|
||
index = theme->dir_sizes->len;
|
||
g_array_append_val (theme->dir_sizes, new);
|
||
|
||
return index;
|
||
}
|
||
|
||
static guint32
|
||
theme_add_icon_dir (IconTheme *theme,
|
||
gboolean is_resource,
|
||
char *path /* takes ownership */)
|
||
{
|
||
IconThemeDir new_dir = { 0 };
|
||
guint32 dir_index;
|
||
|
||
new_dir.is_resource = is_resource;
|
||
new_dir.path = path;
|
||
|
||
dir_index = theme->dirs->len;
|
||
g_array_append_val (theme->dirs, new_dir);
|
||
return dir_index;
|
||
}
|
||
|
||
static void
|
||
theme_add_icon_file (IconTheme *theme,
|
||
const char *icon_name, /* interned */
|
||
guint suffixes,
|
||
IconThemeDirSize *dir_size,
|
||
guint dir_index)
|
||
{
|
||
IconThemeFile new_file = { 0 };
|
||
guint index;
|
||
|
||
if (g_hash_table_contains (dir_size->icon_hash, icon_name))
|
||
return;
|
||
|
||
new_file.dir_index = dir_index;
|
||
new_file.best_suffix = best_suffix (suffixes, TRUE);
|
||
new_file.best_suffix_no_svg = best_suffix (suffixes, FALSE);
|
||
|
||
index = dir_size->icon_files->len;
|
||
g_array_append_val (dir_size->icon_files, new_file);
|
||
|
||
g_hash_table_insert (dir_size->icon_hash, (char *)icon_name, GINT_TO_POINTER(index));
|
||
|
||
}
|
||
|
||
/* Icon names are are already interned */
|
||
static void
|
||
theme_add_dir_with_icons (IconTheme *theme,
|
||
IconThemeDirSize *dir_size,
|
||
gboolean is_resource,
|
||
char *path /* takes ownership */,
|
||
GHashTable *icons)
|
||
{
|
||
GHashTableIter iter;
|
||
gpointer key, value;
|
||
guint32 dir_index;
|
||
|
||
dir_index = theme_add_icon_dir (theme, is_resource, path);
|
||
|
||
g_hash_table_iter_init (&iter, icons);
|
||
while (g_hash_table_iter_next (&iter, &key, &value))
|
||
{
|
||
const char *icon_name = key; /* interned */
|
||
guint suffixes = GPOINTER_TO_INT(value);
|
||
theme_add_icon_file (theme, icon_name, suffixes, dir_size, dir_index);
|
||
}
|
||
}
|
||
|
||
static void
|
||
theme_subdir_load (GtkIconTheme *self,
|
||
IconTheme *theme,
|
||
GKeyFile *theme_file,
|
||
gchar *subdir)
|
||
{
|
||
GList *d;
|
||
gchar *type_string;
|
||
IconThemeDirType type;
|
||
gint size;
|
||
gint min_size;
|
||
gint max_size;
|
||
gint threshold;
|
||
GError *error = NULL;
|
||
IconThemeDirMtime *dir_mtime;
|
||
guint32 dir_size_index;
|
||
IconThemeDirSize *dir_size;
|
||
gint scale;
|
||
|
||
size = g_key_file_get_integer (theme_file, subdir, "Size", &error);
|
||
if (error)
|
||
{
|
||
g_error_free (error);
|
||
g_warning ("Theme directory %s of theme %s has no size field\n",
|
||
subdir, theme->name);
|
||
return;
|
||
}
|
||
|
||
type = ICON_THEME_DIR_THRESHOLD;
|
||
type_string = g_key_file_get_string (theme_file, subdir, "Type", NULL);
|
||
if (type_string)
|
||
{
|
||
if (strcmp (type_string, "Fixed") == 0)
|
||
type = ICON_THEME_DIR_FIXED;
|
||
else if (strcmp (type_string, "Scalable") == 0)
|
||
type = ICON_THEME_DIR_SCALABLE;
|
||
else if (strcmp (type_string, "Threshold") == 0)
|
||
type = ICON_THEME_DIR_THRESHOLD;
|
||
|
||
g_free (type_string);
|
||
}
|
||
|
||
if (g_key_file_has_key (theme_file, subdir, "MaxSize", NULL))
|
||
max_size = g_key_file_get_integer (theme_file, subdir, "MaxSize", NULL);
|
||
else
|
||
max_size = size;
|
||
|
||
if (g_key_file_has_key (theme_file, subdir, "MinSize", NULL))
|
||
min_size = g_key_file_get_integer (theme_file, subdir, "MinSize", NULL);
|
||
else
|
||
min_size = size;
|
||
|
||
if (g_key_file_has_key (theme_file, subdir, "Threshold", NULL))
|
||
threshold = g_key_file_get_integer (theme_file, subdir, "Threshold", NULL);
|
||
else
|
||
threshold = 2;
|
||
|
||
if (g_key_file_has_key (theme_file, subdir, "Scale", NULL))
|
||
scale = g_key_file_get_integer (theme_file, subdir, "Scale", NULL);
|
||
else
|
||
scale = 1;
|
||
|
||
dir_size_index = theme_ensure_dir_size (theme, type, size, min_size, max_size, threshold, scale);
|
||
dir_size = &g_array_index (theme->dir_sizes, IconThemeDirSize, dir_size_index);
|
||
|
||
for (d = self->dir_mtimes; d; d = d->next)
|
||
{
|
||
gchar *full_dir;
|
||
dir_mtime = (IconThemeDirMtime *)d->data;
|
||
|
||
if (!dir_mtime->exists)
|
||
continue; /* directory doesn't exist */
|
||
|
||
full_dir = g_build_filename (dir_mtime->dir, subdir, NULL);
|
||
|
||
/* First, see if we have a cache for the directory */
|
||
if (dir_mtime->cache != NULL || g_file_test (full_dir, G_FILE_TEST_IS_DIR))
|
||
{
|
||
GHashTable *icons = NULL;
|
||
|
||
if (dir_mtime->cache == NULL)
|
||
{
|
||
/* This will return NULL if the cache doesn't exist or is outdated */
|
||
dir_mtime->cache = gtk_icon_cache_new_for_path (dir_mtime->dir);
|
||
}
|
||
|
||
if (dir_mtime->cache != NULL)
|
||
icons = gtk_icon_cache_list_icons_in_directory (dir_mtime->cache, subdir, &theme->icons);
|
||
else
|
||
icons = scan_directory (self, full_dir, &theme->icons);
|
||
|
||
if (icons)
|
||
{
|
||
theme_add_dir_with_icons (theme,
|
||
dir_size,
|
||
FALSE,
|
||
g_steal_pointer (&full_dir),
|
||
icons);
|
||
g_hash_table_destroy (icons);
|
||
}
|
||
}
|
||
|
||
g_free (full_dir);
|
||
}
|
||
|
||
if (strcmp (theme->name, FALLBACK_ICON_THEME) == 0)
|
||
{
|
||
for (d = self->resource_paths; d; d = d->next)
|
||
{
|
||
GHashTable *icons;
|
||
gchar *full_dir;
|
||
|
||
/* Force a trailing / here, to avoid extra copies in GResource */
|
||
full_dir = g_build_filename ((const gchar *)d->data, subdir, " ", NULL);
|
||
full_dir[strlen (full_dir) - 1] = '\0';
|
||
|
||
icons = scan_resource_directory (self, full_dir, &theme->icons);
|
||
if (icons)
|
||
{
|
||
theme_add_dir_with_icons (theme,
|
||
dir_size,
|
||
TRUE,
|
||
g_steal_pointer (&full_dir),
|
||
icons);
|
||
g_hash_table_destroy (icons);
|
||
}
|
||
|
||
g_free (full_dir);
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* GtkIcon
|
||
*/
|
||
|
||
static void icon_paintable_init (GdkPaintableInterface *iface);
|
||
|
||
enum
|
||
{
|
||
PROP_0,
|
||
PROP_FILE,
|
||
PROP_ICON_NAME,
|
||
PROP_IS_SYMBOLIC,
|
||
};
|
||
|
||
G_DEFINE_TYPE_WITH_CODE (GtkIconPaintable, gtk_icon_paintable, G_TYPE_OBJECT,
|
||
G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
|
||
icon_paintable_init))
|
||
|
||
static void
|
||
gtk_icon_paintable_init (GtkIconPaintable *icon)
|
||
{
|
||
g_mutex_init (&icon->texture_lock);
|
||
}
|
||
|
||
static GtkIconPaintable *
|
||
icon_paintable_new (const char *icon_name,
|
||
int desired_size,
|
||
int desired_scale)
|
||
{
|
||
GtkIconPaintable *icon;
|
||
|
||
icon = g_object_new (GTK_TYPE_ICON_PAINTABLE,
|
||
"icon-name", icon_name,
|
||
NULL);
|
||
|
||
icon->desired_size = desired_size;
|
||
icon->desired_scale = desired_scale;
|
||
|
||
return icon;
|
||
}
|
||
|
||
static void
|
||
gtk_icon_paintable_finalize (GObject *object)
|
||
{
|
||
GtkIconPaintable *icon = (GtkIconPaintable *) object;
|
||
|
||
icon_cache_remove (icon);
|
||
|
||
g_strfreev (icon->key.icon_names);
|
||
|
||
g_free (icon->filename);
|
||
g_free (icon->icon_name);
|
||
|
||
g_clear_object (&icon->loadable);
|
||
g_clear_object (&icon->texture);
|
||
#ifdef G_OS_WIN32
|
||
g_clear_object (&icon->win32_icon);
|
||
#endif
|
||
|
||
g_mutex_clear (&icon->texture_lock);
|
||
|
||
G_OBJECT_CLASS (gtk_icon_paintable_parent_class)->finalize (object);
|
||
}
|
||
|
||
static void
|
||
gtk_icon_paintable_get_property (GObject *object,
|
||
guint prop_id,
|
||
GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkIconPaintable *icon = GTK_ICON_PAINTABLE (object);
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_FILE:
|
||
g_value_take_object (value, gtk_icon_paintable_get_file (icon));
|
||
break;
|
||
|
||
case PROP_ICON_NAME:
|
||
g_value_set_string (value, icon->icon_name);
|
||
break;
|
||
|
||
case PROP_IS_SYMBOLIC:
|
||
g_value_set_boolean (value, icon->is_symbolic);
|
||
break;
|
||
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_icon_paintable_set_property (GObject *object,
|
||
guint prop_id,
|
||
const GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkIconPaintable *icon = GTK_ICON_PAINTABLE (object);
|
||
GFile *file;
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_FILE:
|
||
icon->is_resource = FALSE;
|
||
g_clear_pointer (&icon->filename, g_free);
|
||
|
||
file = G_FILE (g_value_get_object (value));
|
||
if (file)
|
||
{
|
||
icon->is_resource = g_file_has_uri_scheme (file, "resource");
|
||
if (icon->is_resource)
|
||
{
|
||
char *uri = g_file_get_uri (file);
|
||
icon->filename = g_strdup (uri + 11); /* resource:// */
|
||
g_free (uri);
|
||
}
|
||
else
|
||
icon->filename = g_file_get_path (file);
|
||
}
|
||
break;
|
||
|
||
case PROP_ICON_NAME:
|
||
g_free (icon->icon_name);
|
||
icon->icon_name = g_value_dup_string (value);
|
||
break;
|
||
|
||
case PROP_IS_SYMBOLIC:
|
||
icon->is_symbolic = g_value_get_boolean (value);
|
||
break;
|
||
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
}
|
||
}
|
||
|
||
|
||
static void
|
||
gtk_icon_paintable_class_init (GtkIconPaintableClass *klass)
|
||
{
|
||
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
||
|
||
gobject_class->get_property = gtk_icon_paintable_get_property;
|
||
gobject_class->set_property = gtk_icon_paintable_set_property;
|
||
gobject_class->finalize = gtk_icon_paintable_finalize;
|
||
|
||
/**
|
||
* GtkIconPaintable:file:
|
||
*
|
||
* The file representing the icon, if any.
|
||
*/
|
||
g_object_class_install_property (gobject_class, PROP_FILE,
|
||
g_param_spec_object ("file",
|
||
P_("file"),
|
||
P_("The file representing the icon"),
|
||
G_TYPE_FILE,
|
||
G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NICK));
|
||
/**
|
||
* GtkIconPaintable:icon-name:
|
||
*
|
||
* The icon name that was chosen during lookup.
|
||
*/
|
||
g_object_class_install_property (gobject_class, PROP_ICON_NAME,
|
||
g_param_spec_string ("icon-name",
|
||
P_("Icon name"),
|
||
P_("The icon name choosen during lookup"),
|
||
NULL,
|
||
G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NICK));
|
||
/**
|
||
* GtkIconPaintable:is-symbolic:
|
||
*
|
||
* Whether the icon is symbolic or not.
|
||
*/
|
||
g_object_class_install_property (gobject_class, PROP_IS_SYMBOLIC,
|
||
g_param_spec_boolean ("is-symbolic",
|
||
P_("Is symbolic"),
|
||
P_("If the icon is symbolic"),
|
||
FALSE,
|
||
G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_STATIC_BLURB | G_PARAM_STATIC_NICK));
|
||
}
|
||
|
||
static GFile *
|
||
new_resource_file (const char *filename)
|
||
{
|
||
char *escaped = g_uri_escape_string (filename,
|
||
G_URI_RESERVED_CHARS_ALLOWED_IN_PATH, FALSE);
|
||
char *uri = g_strconcat ("resource://", escaped, NULL);
|
||
GFile *file = g_file_new_for_uri (uri);
|
||
|
||
g_free (escaped);
|
||
g_free (uri);
|
||
|
||
return file;
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_paintable_get_file:
|
||
* @self: a #GtkIcon
|
||
*
|
||
* Gets the #GFile that was used to load the icon, or %NULL if the icon was
|
||
* not loaded from a file.
|
||
*
|
||
* Returns: (nullable) (transfer full): the #GFile for the icon, or %NULL.
|
||
* Free with g_object_unref().
|
||
*/
|
||
GFile *
|
||
gtk_icon_paintable_get_file (GtkIconPaintable *icon)
|
||
{
|
||
if (icon->filename)
|
||
{
|
||
if (icon->is_resource)
|
||
return new_resource_file (icon->filename);
|
||
else
|
||
return g_file_new_for_path (icon->filename);
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_paintable_get_icon_name:
|
||
* @self: a #GtkIcon
|
||
*
|
||
* Get the icon name being used for this icon.
|
||
*
|
||
* When an icon looked up in the icon theme was not available, the
|
||
* icon theme may use fallback icons - either those specified to
|
||
* gtk_icon_theme_lookup() or the always-available
|
||
* "image-missing". The icon chosen is returned by this function.
|
||
*
|
||
* If the icon was created without an icon theme, this function returns %NULL.
|
||
*
|
||
*
|
||
* Returns: (nullable) (type filename): the themed icon-name for the icon, or %NULL
|
||
* if its not a themed icon.
|
||
*/
|
||
const gchar *
|
||
gtk_icon_paintable_get_icon_name (GtkIconPaintable *icon)
|
||
{
|
||
g_return_val_if_fail (icon != NULL, NULL);
|
||
|
||
return icon->icon_name;
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_paintable_is_symbolic:
|
||
* @self: a #GtkIcon
|
||
*
|
||
* Checks if the icon is symbolic or not. This currently uses only
|
||
* the file name and not the file contents for determining this.
|
||
* This behaviour may change in the future.
|
||
*
|
||
* Returns: %TRUE if the icon is symbolic, %FALSE otherwise
|
||
*/
|
||
gboolean
|
||
gtk_icon_paintable_is_symbolic (GtkIconPaintable *icon)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_ICON_PAINTABLE (icon), FALSE);
|
||
|
||
return icon->is_symbolic;
|
||
}
|
||
|
||
static GLoadableIcon *
|
||
icon_get_loadable (GtkIconPaintable *icon)
|
||
{
|
||
GFile *file;
|
||
GLoadableIcon *loadable;
|
||
|
||
if (icon->loadable)
|
||
return g_object_ref (icon->loadable);
|
||
|
||
if (icon->is_resource)
|
||
{
|
||
char *uri = g_strconcat ("resource://", icon->filename, NULL);
|
||
file = g_file_new_for_uri (uri);
|
||
g_free (uri);
|
||
}
|
||
else
|
||
file = g_file_new_for_path (icon->filename);
|
||
|
||
loadable = G_LOADABLE_ICON (g_file_icon_new (file));
|
||
|
||
g_object_unref (file);
|
||
|
||
return loadable;
|
||
}
|
||
|
||
/* This function contains the complicated logic for deciding
|
||
* on the size at which to load the icon and loading it at
|
||
* that size.
|
||
*/
|
||
static void
|
||
icon_ensure_texture__locked (GtkIconPaintable *icon,
|
||
gboolean in_thread)
|
||
{
|
||
GdkPixbuf *source_pixbuf;
|
||
gint64 before;
|
||
gint pixel_size;
|
||
GError *load_error = NULL;
|
||
|
||
icon_cache_mark_used_if_cached (icon);
|
||
|
||
if (icon->texture)
|
||
return;
|
||
|
||
before = g_get_monotonic_time ();
|
||
|
||
/* This is the natural pixel size for the requested icon size + scale in this directory.
|
||
* We precalculate this so we can use it as a rasterization size for svgs.
|
||
*/
|
||
pixel_size = icon->desired_size * icon->desired_scale;
|
||
|
||
/* At this point, we need to actually get the icon; either from the
|
||
* builtin image or by loading the file
|
||
*/
|
||
source_pixbuf = NULL;
|
||
#ifdef G_OS_WIN32
|
||
if (icon->win32_icon)
|
||
{
|
||
source_pixbuf = g_object_ref (icon->win32_icon);
|
||
}
|
||
else
|
||
#endif
|
||
if (icon->is_resource)
|
||
{
|
||
if (icon->is_svg)
|
||
{
|
||
if (gtk_icon_paintable_is_symbolic (icon))
|
||
source_pixbuf = gtk_make_symbolic_pixbuf_from_resource (icon->filename,
|
||
pixel_size, pixel_size,
|
||
icon->desired_scale,
|
||
&load_error);
|
||
else
|
||
source_pixbuf = _gdk_pixbuf_new_from_resource_at_scale (icon->filename,
|
||
"svg",
|
||
pixel_size, pixel_size,
|
||
TRUE, &load_error);
|
||
}
|
||
else
|
||
source_pixbuf = _gdk_pixbuf_new_from_resource (icon->filename,
|
||
g_str_has_suffix (icon->filename, ".xpm") ? "xpm" : "png",
|
||
&load_error);
|
||
|
||
if (source_pixbuf == NULL)
|
||
{
|
||
g_warning ("Failed to load icon %s: %s", icon->filename, load_error->message);
|
||
g_clear_error (&load_error);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
GLoadableIcon *loadable;
|
||
GInputStream *stream;
|
||
|
||
loadable = icon_get_loadable (icon);
|
||
stream = g_loadable_icon_load (loadable,
|
||
pixel_size,
|
||
NULL, NULL,
|
||
&load_error);
|
||
g_object_unref (loadable);
|
||
|
||
if (stream)
|
||
{
|
||
/* SVG icons are a special case - we just immediately scale them
|
||
* to the desired size
|
||
*/
|
||
if (icon->is_svg)
|
||
{
|
||
if (gtk_icon_paintable_is_symbolic (icon))
|
||
source_pixbuf = gtk_make_symbolic_pixbuf_from_path (icon->filename,
|
||
pixel_size, pixel_size,
|
||
icon->desired_scale,
|
||
&load_error);
|
||
else
|
||
source_pixbuf = _gdk_pixbuf_new_from_stream_at_scale (stream,
|
||
"svg",
|
||
pixel_size, pixel_size,
|
||
TRUE, NULL,
|
||
&load_error);
|
||
}
|
||
else
|
||
source_pixbuf = _gdk_pixbuf_new_from_stream (stream,
|
||
g_str_has_suffix (icon->filename, ".xpm") ? "xpm" : "png",
|
||
NULL, &load_error);
|
||
g_object_unref (stream);
|
||
}
|
||
|
||
if (source_pixbuf == NULL)
|
||
{
|
||
g_warning ("Failed to load icon %s: %s", icon->filename, load_error->message);
|
||
g_clear_error (&load_error);
|
||
}
|
||
}
|
||
|
||
if (!source_pixbuf)
|
||
{
|
||
source_pixbuf = _gdk_pixbuf_new_from_resource (IMAGE_MISSING_RESOURCE_PATH, "png", NULL);
|
||
icon->icon_name = g_strdup ("image-missing");
|
||
icon->is_symbolic = FALSE;
|
||
g_assert (source_pixbuf != NULL);
|
||
}
|
||
|
||
/* Actual scaling is done during rendering, so just keep the source pixbuf as a texture */
|
||
icon->texture = gdk_texture_new_for_pixbuf (source_pixbuf);
|
||
g_object_unref (source_pixbuf);
|
||
|
||
g_assert (icon->texture != NULL);
|
||
|
||
if (GDK_PROFILER_IS_RUNNING)
|
||
{
|
||
guint64 end = g_get_monotonic_time ();
|
||
/* Don't report quick (< 0.5 msec) parses */
|
||
if (end - before > 500 || !in_thread)
|
||
gdk_profiler_add_markf (before, (end - before), in_thread ? "icon load (thread)" : "icon load" ,
|
||
"%s size %d@%d", icon->filename, icon->desired_size, icon->desired_scale);
|
||
}
|
||
}
|
||
|
||
static GdkTexture *
|
||
gtk_icon_paintable_ensure_texture (GtkIconPaintable *self)
|
||
{
|
||
GdkTexture *texture = NULL;
|
||
|
||
g_mutex_lock (&self->texture_lock);
|
||
|
||
icon_ensure_texture__locked (self, FALSE);
|
||
|
||
texture = g_object_ref (self->texture);
|
||
|
||
g_mutex_unlock (&self->texture_lock);
|
||
|
||
g_assert (texture != NULL);
|
||
|
||
return texture;
|
||
}
|
||
|
||
static void
|
||
init_color_matrix (graphene_matrix_t *color_matrix,
|
||
graphene_vec4_t *color_offset,
|
||
const GdkRGBA *foreground_color,
|
||
const GdkRGBA *success_color,
|
||
const GdkRGBA *warning_color,
|
||
const GdkRGBA *error_color)
|
||
{
|
||
GdkRGBA fg_default = { 0.7450980392156863, 0.7450980392156863, 0.7450980392156863, 1.0};
|
||
GdkRGBA success_default = { 0.3046921492332342,0.6015716792553597, 0.023437857633325704, 1.0};
|
||
GdkRGBA warning_default = {0.9570458533607996, 0.47266346227206835, 0.2421911955443656, 1.0 };
|
||
GdkRGBA error_default = { 0.796887159533074, 0 ,0, 1.0 };
|
||
const GdkRGBA *fg = foreground_color ? foreground_color : &fg_default;
|
||
const GdkRGBA *sc = success_color ? success_color : &success_default;
|
||
const GdkRGBA *wc = warning_color ? warning_color : &warning_default;
|
||
const GdkRGBA *ec = error_color ? error_color : &error_default;
|
||
|
||
graphene_matrix_init_from_float (color_matrix,
|
||
(float[16]) {
|
||
sc->red - fg->red, sc->green - fg->green, sc->blue - fg->blue, 0,
|
||
wc->red - fg->red, wc->green - fg->green, wc->blue - fg->blue, 0,
|
||
ec->red - fg->red, ec->green - fg->green, ec->blue - fg->blue, 0,
|
||
0, 0, 0, fg->alpha
|
||
});
|
||
graphene_vec4_init (color_offset, fg->red, fg->green, fg->blue, 0);
|
||
}
|
||
|
||
|
||
static void
|
||
icon_paintable_snapshot (GdkPaintable *paintable,
|
||
GtkSnapshot *snapshot,
|
||
double width,
|
||
double height)
|
||
{
|
||
GtkIconPaintable *icon = GTK_ICON_PAINTABLE (paintable);
|
||
|
||
gtk_icon_paintable_snapshot_with_colors (icon, snapshot, width, height,
|
||
NULL, NULL, NULL, NULL);
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_paintable_snapshot_with_colors:
|
||
* @icon: a #GtkIcon
|
||
* @snapshot: a #GdkSnapshot to snapshot to
|
||
* @width: width to snapshot in
|
||
* @height: height to snapshot in
|
||
* @foreground_color: (allow-none): a #GdkRGBA representing the foreground color
|
||
* of the icon or %NULL to use the default color.
|
||
* @success_color: (allow-none): a #GdkRGBA representing the warning color
|
||
* of the icon or %NULL to use the default color
|
||
* @warning_color: (allow-none): a #GdkRGBA representing the warning color
|
||
* of the icon or %NULL to use the default color
|
||
* @error_color: (allow-none): a #GdkRGBA representing the error color
|
||
* of the icon or %NULL to use the default color (allow-none)
|
||
*
|
||
* This is similar to the implementation of gdk_paintable_snapshot(), but if the icon is
|
||
* symbolic it will be recolored with the specified colors (which ususally comes from the theme).
|
||
*/
|
||
void
|
||
gtk_icon_paintable_snapshot_with_colors (GtkIconPaintable *icon,
|
||
GtkSnapshot *snapshot,
|
||
double width,
|
||
double height,
|
||
const GdkRGBA *foreground_color,
|
||
const GdkRGBA *success_color,
|
||
const GdkRGBA *warning_color,
|
||
const GdkRGBA *error_color)
|
||
{
|
||
GdkTexture *texture;
|
||
int texture_width, texture_height;
|
||
double render_width;
|
||
double render_height;
|
||
gboolean symbolic;
|
||
|
||
texture = gtk_icon_paintable_ensure_texture (icon);
|
||
symbolic = gtk_icon_paintable_is_symbolic (icon);
|
||
|
||
if (symbolic)
|
||
{
|
||
graphene_matrix_t matrix;
|
||
graphene_vec4_t offset;
|
||
|
||
init_color_matrix (&matrix, &offset,
|
||
foreground_color, success_color,
|
||
warning_color, error_color);
|
||
|
||
gtk_snapshot_push_color_matrix (snapshot, &matrix, &offset);
|
||
}
|
||
|
||
texture_width = gdk_texture_get_width (texture);
|
||
texture_height = gdk_texture_get_height (texture);
|
||
|
||
/* Keep aspect ratio and center */
|
||
if (texture_width >= texture_height)
|
||
{
|
||
render_width = width;
|
||
render_height = height * ((double)texture_height / texture_width);
|
||
}
|
||
else
|
||
{
|
||
render_width = width * ((double)texture_width / texture_height);
|
||
render_height = height;
|
||
}
|
||
|
||
gtk_snapshot_append_texture (snapshot, texture,
|
||
&GRAPHENE_RECT_INIT ((width - render_width) / 2,
|
||
(height - render_height) / 2,
|
||
render_width,
|
||
render_height));
|
||
|
||
if (symbolic)
|
||
gtk_snapshot_pop (snapshot);
|
||
|
||
g_object_unref (texture);
|
||
}
|
||
|
||
|
||
static GdkPaintableFlags
|
||
icon_paintable_get_flags (GdkPaintable *paintable)
|
||
{
|
||
return GDK_PAINTABLE_STATIC_SIZE | GDK_PAINTABLE_STATIC_CONTENTS;
|
||
}
|
||
|
||
static int
|
||
icon_paintable_get_intrinsic_width (GdkPaintable *paintable)
|
||
{
|
||
GtkIconPaintable *icon = GTK_ICON_PAINTABLE (paintable);
|
||
|
||
return icon->desired_size;
|
||
}
|
||
|
||
static int
|
||
icon_paintable_get_intrinsic_height (GdkPaintable *paintable)
|
||
{
|
||
GtkIconPaintable *icon = GTK_ICON_PAINTABLE (paintable);
|
||
|
||
return icon->desired_size;
|
||
}
|
||
|
||
static void
|
||
icon_paintable_init (GdkPaintableInterface *iface)
|
||
{
|
||
iface->snapshot = icon_paintable_snapshot;
|
||
iface->get_flags = icon_paintable_get_flags;
|
||
iface->get_intrinsic_width = icon_paintable_get_intrinsic_width;
|
||
iface->get_intrinsic_height = icon_paintable_get_intrinsic_height;
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_paintable_new_for_file:
|
||
* @file: a #GFile
|
||
* @size: desired icon size
|
||
* @scale: the desired scale
|
||
*
|
||
* Creates a #GtkIconPaintable for a file with a given size and scale
|
||
* #GtkIcon. The icon can then be rendered by using it as a #GdkPaintable.
|
||
*
|
||
* Returns: (transfer full): a #GtkIconPaintable containing
|
||
* for the icon. Unref with g_object_unref()
|
||
*/
|
||
GtkIconPaintable *
|
||
gtk_icon_paintable_new_for_file (GFile *file,
|
||
gint size,
|
||
gint scale)
|
||
{
|
||
GtkIconPaintable *icon;
|
||
|
||
icon = icon_paintable_new (NULL, size, scale);
|
||
icon->loadable = G_LOADABLE_ICON (g_file_icon_new (file));
|
||
icon->is_resource = g_file_has_uri_scheme (file, "resource");
|
||
|
||
if (icon->is_resource)
|
||
{
|
||
gchar *uri;
|
||
|
||
uri = g_file_get_uri (file);
|
||
icon->filename = g_strdup (uri + 11); /* resource:// */
|
||
g_free (uri);
|
||
}
|
||
else
|
||
{
|
||
icon->filename = g_file_get_path (file);
|
||
}
|
||
|
||
icon->is_svg = suffix_from_name (icon->filename) == ICON_CACHE_FLAG_SVG_SUFFIX;
|
||
|
||
return icon;
|
||
}
|
||
|
||
static GtkIconPaintable *
|
||
gtk_icon_paintable_new_for_pixbuf (GtkIconTheme *icon_theme,
|
||
GdkPixbuf *pixbuf,
|
||
int size,
|
||
int scale)
|
||
{
|
||
GtkIconPaintable *icon;
|
||
gint width, height;
|
||
|
||
if (size <= 0)
|
||
{
|
||
width = gdk_pixbuf_get_width (pixbuf);
|
||
height = gdk_pixbuf_get_height (pixbuf);
|
||
size = MAX (width, height);
|
||
}
|
||
|
||
icon = icon_paintable_new (NULL, size, scale);
|
||
icon->texture = gdk_texture_new_for_pixbuf (pixbuf);
|
||
|
||
return icon;
|
||
}
|
||
|
||
/**
|
||
* gtk_icon_theme_lookup_by_gicon:
|
||
* @self: a #GtkIconTheme
|
||
* @icon: the #GIcon to look up
|
||
* @size: desired icon size
|
||
* @scale: the desired scale
|
||
* @direction: text direction the icon will be displayed in
|
||
* @flags: flags modifying the behavior of the icon lookup
|
||
*
|
||
* Looks up a icon for a desired size and window scale, returning a
|
||
* #GtkIcon. The icon can then be rendered by using it as a #GdkPaintable,
|
||
* or you can get information such as the filename and size.
|
||
*
|
||
* Returns: (transfer full): a #GtkIconPaintable containing
|
||
* information about the icon. Unref with g_object_unref()
|
||
*/
|
||
GtkIconPaintable *
|
||
gtk_icon_theme_lookup_by_gicon (GtkIconTheme *self,
|
||
GIcon *gicon,
|
||
gint size,
|
||
gint scale,
|
||
GtkTextDirection direction,
|
||
GtkIconLookupFlags flags)
|
||
{
|
||
GtkIconPaintable *icon = NULL;
|
||
|
||
g_return_val_if_fail (GTK_IS_ICON_THEME (self), NULL);
|
||
g_return_val_if_fail (G_IS_ICON (gicon), NULL);
|
||
|
||
/* We can't render emblemed icons atm, but at least render the base */
|
||
while (G_IS_EMBLEMED_ICON (gicon))
|
||
gicon = g_emblemed_icon_get_icon (G_EMBLEMED_ICON (gicon));
|
||
|
||
if (GDK_IS_PIXBUF (gicon))
|
||
{
|
||
GdkPixbuf *pixbuf = GDK_PIXBUF (gicon);
|
||
|
||
icon = gtk_icon_paintable_new_for_pixbuf (self, pixbuf, size, scale);
|
||
}
|
||
else if (G_IS_FILE_ICON (gicon))
|
||
{
|
||
GFile *file = g_file_icon_get_file (G_FILE_ICON (gicon));
|
||
|
||
icon = gtk_icon_paintable_new_for_file (file, size, scale);
|
||
}
|
||
else if (G_IS_LOADABLE_ICON (gicon))
|
||
{
|
||
icon = icon_paintable_new (NULL, size, scale);
|
||
icon->loadable = G_LOADABLE_ICON (g_object_ref (gicon));
|
||
icon->is_svg = FALSE;
|
||
}
|
||
else if (G_IS_THEMED_ICON (gicon))
|
||
{
|
||
const gchar **names;
|
||
|
||
names = (const gchar **) g_themed_icon_get_names (G_THEMED_ICON (gicon));
|
||
icon = gtk_icon_theme_lookup_icon (self, names[0], &names[1], size, scale, direction, flags);
|
||
}
|
||
else
|
||
{
|
||
g_debug ("Unhandled GIcon type %s", G_OBJECT_TYPE_NAME (gicon));
|
||
icon = icon_paintable_new ("image-missing", size, scale);
|
||
icon->filename = g_strdup (IMAGE_MISSING_RESOURCE_PATH);
|
||
icon->is_resource = TRUE;
|
||
}
|
||
|
||
return icon;
|
||
}
|