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GtkIconTheme: Support looking up directional variants

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Add two new icon lookup flags, GTK_ICON_LOOKUP_DIR_LTR and _RTL,
which tell GtkIconTheme to look for icon variants which have a
-ltr or -rtl suffix. GtkIconHelper adds these lookup flags when
looking up icons.

Note that due to the way this overlaps with symbolic icon lookup,
directional variants of symbolic icons must be called -symbolic-rtl, not
-rtl-symbolic.

https://bugzilla.gnome.org/show_bug.cgi?id=729980
This commit is contained in:
Matthias Clasen 2014-05-14 03:34:49 +02:00 committed by Benjamin Otte
parent 89d6598d5b
commit b0b205040c
3 changed files with 68 additions and 12 deletions
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55
gtk/gtkicontheme.c
View File

@ -1594,13 +1594,17 @@ symbolic_pixbuf_cache_free (SymbolicPixbufCache *cache)
static gboolean
icon_name_is_symbolic (const char *icon_name)
{
return g_str_has_suffix (icon_name, "-symbolic");
return g_str_has_suffix (icon_name, "-symbolic")
|| g_str_has_suffix (icon_name, "-symbolic-ltr")
|| g_str_has_suffix (icon_name, "-symbolic-rtl");
}
static gboolean
icon_uri_is_symbolic (const char *icon_name)
{
return g_str_has_suffix (icon_name, "-symbolic.svg");
return g_str_has_suffix (icon_name, "-symbolic.svg")
|| g_str_has_suffix (icon_name, "-symbolic-ltr.svg")
|| g_str_has_suffix (icon_name, "-symbolic-rtl.svg");
}
static GtkIconInfo *
@ -1806,6 +1810,16 @@ real_choose_icon (GtkIconTheme *icon_theme,
return icon_info;
}
static void
icon_name_list_add_icon (GPtrArray *icons,
const char *dir_suffix,
char *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 GtkIconInfo *
choose_icon (GtkIconTheme *icon_theme,
const gchar *icon_names[],
@ -1816,8 +1830,16 @@ choose_icon (GtkIconTheme *icon_theme,
gboolean has_regular = FALSE, has_symbolic = FALSE;
GtkIconInfo *icon_info;
GPtrArray *new_names;
const char *dir_suffix;
guint i;
if (flags & GTK_ICON_LOOKUP_DIR_LTR)
dir_suffix = "-ltr";
else if (flags & GTK_ICON_LOOKUP_DIR_RTL)
dir_suffix = "-rtl";
else
dir_suffix = NULL;
for (i = 0; icon_names[i]; i++)
{
if (icon_name_is_symbolic (icon_names[i]))
@ -1832,14 +1854,14 @@ choose_icon (GtkIconTheme *icon_theme,
for (i = 0; icon_names[i]; i++)
{
if (icon_name_is_symbolic (icon_names[i]))
g_ptr_array_add (new_names, g_strndup (icon_names[i], strlen (icon_names[i]) - strlen ("-symbolic")));
icon_name_list_add_icon (new_names, dir_suffix, g_strndup (icon_names[i], strlen (icon_names[i]) - strlen ("-symbolic")));
else
g_ptr_array_add (new_names, g_strdup (icon_names[i]));
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]))
g_ptr_array_add (new_names, g_strdup (icon_names[i]));
icon_name_list_add_icon (new_names, dir_suffix, g_strdup (icon_names[i]));
}
g_ptr_array_add (new_names, NULL);
@ -1857,14 +1879,31 @@ choose_icon (GtkIconTheme *icon_theme,
for (i = 0; icon_names[i]; i++)
{
if (!icon_name_is_symbolic (icon_names[i]))
g_ptr_array_add (new_names, g_strconcat (icon_names[i], "-symbolic", NULL));
icon_name_list_add_icon (new_names, dir_suffix, g_strconcat (icon_names[i], "-symbolic", NULL));
else
g_ptr_array_add (new_names, g_strdup (icon_names[i]));
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]))
g_ptr_array_add (new_names, g_strdup (icon_names[i]));
icon_name_list_add_icon (new_names, dir_suffix, g_strdup (icon_names[i]));
}
g_ptr_array_add (new_names, NULL);
icon_info = real_choose_icon (icon_theme,
(const gchar **) new_names->pdata,
size,
scale,
flags & ~(GTK_ICON_LOOKUP_FORCE_REGULAR | GTK_ICON_LOOKUP_FORCE_SYMBOLIC));
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);

8
gtk/gtkicontheme.h
View File

@ -117,6 +117,10 @@ struct _GtkIconThemeClass
* when symbolic icon names are given. Since 3.14.
* @GTK_ICON_LOOKUP_FORCE_SYMBOLIC: Try to always load symbolic icons, even
* when regular icon names are given. Since 3.14.
* @GTK_ICON_LOOKUP_DIR_LTR: Try to load a variant of the icon for left-to-right
* text direction. Since 3.14.
* @GTK_ICON_LOOKUP_DIR_RTL: Try to load a variant of the icon for right-to-left
* text direction. Since 3.14.
*
* Used to specify options for gtk_icon_theme_lookup_icon()
*/
@ -128,7 +132,9 @@ typedef enum
GTK_ICON_LOOKUP_GENERIC_FALLBACK = 1 << 3,
GTK_ICON_LOOKUP_FORCE_SIZE = 1 << 4,
GTK_ICON_LOOKUP_FORCE_REGULAR = 1 << 5,
GTK_ICON_LOOKUP_FORCE_SYMBOLIC = 1 << 6
GTK_ICON_LOOKUP_FORCE_SYMBOLIC = 1 << 6,
GTK_ICON_LOOKUP_DIR_LTR = 1 << 7,
GTK_ICON_LOOKUP_DIR_RTL = 1 << 8
} GtkIconLookupFlags;
/**

17
gtk/gtkstylecontext.c
View File

@ -4682,6 +4682,7 @@ GtkIconLookupFlags
_gtk_style_context_get_icon_lookup_flags (GtkStyleContext *context)
{
GtkCssIconStyle icon_style;
GtkIconLookupFlags flags;
g_return_val_if_fail (GTK_IS_STYLE_CONTEXT (context), 0);
@ -4690,15 +4691,25 @@ _gtk_style_context_get_icon_lookup_flags (GtkStyleContext *context)
switch (icon_style)
{
case GTK_CSS_ICON_STYLE_REGULAR:
return GTK_ICON_LOOKUP_FORCE_REGULAR;
flags = GTK_ICON_LOOKUP_FORCE_REGULAR;
break;
case GTK_CSS_ICON_STYLE_SYMBOLIC:
return GTK_ICON_LOOKUP_FORCE_SYMBOLIC;
flags = GTK_ICON_LOOKUP_FORCE_SYMBOLIC;
break;
case GTK_CSS_ICON_STYLE_REQUESTED:
return 0;
flags = 0;
break;
default:
g_assert_not_reached ();
return 0;
}
if (context->priv->info->state_flags & GTK_STATE_FLAG_DIR_LTR)
flags |= GTK_ICON_LOOKUP_DIR_LTR;
else if (context->priv->info->state_flags & GTK_STATE_FLAG_DIR_RTL)
flags |= GTK_ICON_LOOKUP_DIR_RTL;
return flags;
}
static AtkAttributeSet *