[gtk+] API: Add state flags for RTL and LTR

[Benjamin Otte <otte src gnome org>]

commit 26186c74c6fc0701bbf7dc2ddda830d9bff738cd
Author: Benjamin Otte <otte redhat com>
Date:   Tue Dec 18 16:42:04 2012 +0100

    API: Add state flags for RTL and LTR
    
    See http://www.whatwg.org/specs/web-apps/current-work/#pseudo-classes
    for the rationale.

 gtk/gtkenums.h  |   10 ++++++++--
 gtk/gtkwidget.c |    4 ++--
 2 files changed, 10 insertions(+), 4 deletions(-)
---
diff --git a/gtk/gtkenums.h b/gtk/gtkenums.h
index 6a33963..daff2f0 100644
--- a/gtk/gtkenums.h
+++ b/gtk/gtkenums.h
@@ -860,8 +860,12 @@ typedef enum
  * @GTK_STATE_FLAG_INCONSISTENT: Widget is inconsistent.
  * @GTK_STATE_FLAG_FOCUSED: Widget has the keyboard focus.
  * @GTK_STATE_FLAG_BACKDROP: Widget is in a background toplevel window.
+ * @GTK_STATE_FLAG_LTR: Widget is in left-to-right text direction
+ * @GTK_STATE_FLAG_RTL: Widget is in right-to-left text direction
  *
- * Describes a widget state.
+ * Describes a widget state. Widget states are used to match the widget
+ * against CSS pseudo-classes. Note that GTK extends the regular CSS
+ * classes and sometimes uses different names.
  */
 typedef enum
 {
@@ -872,7 +876,9 @@ typedef enum
   GTK_STATE_FLAG_INSENSITIVE  = 1 << 3,
   GTK_STATE_FLAG_INCONSISTENT = 1 << 4,
   GTK_STATE_FLAG_FOCUSED      = 1 << 5,
-  GTK_STATE_FLAG_BACKDROP     = 1 << 6
+  GTK_STATE_FLAG_BACKDROP     = 1 << 6,
+  GTK_STATE_FLAG_DIR_LTR      = 1 << 7,
+  GTK_STATE_FLAG_DIR_RTL      = 1 << 8
 } GtkStateFlags;
 
 /**
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index a82e62b..13f7b79 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -300,12 +300,12 @@
  * all flags will be set on children (think prelight or active), but we
  * might want to not do this for some.
  */
-#define GTK_STATE_FLAGS_DONT_PROPAGATE (GTK_STATE_FLAG_FOCUSED)
+#define GTK_STATE_FLAGS_DONT_PROPAGATE (GTK_STATE_FLAG_FOCUSED | GTK_STATE_FLAG_DIR_LTR | GTK_STATE_FLAG_DIR_RTL)
 #define GTK_STATE_FLAGS_DO_PROPAGATE (~GTK_STATE_FLAGS_DONT_PROPAGATE)
 
 #define WIDGET_CLASS(w)	 GTK_WIDGET_GET_CLASS (w)
 
-#define GTK_STATE_FLAGS_BITS 7
+#define GTK_STATE_FLAGS_BITS 9
 
 struct _GtkWidgetPrivate
 {