Initialize DOUBLE_BUFFERED flag to on.

Fri Jun  2 12:56:01 2000  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkwidget.c (gtk_widget_init): Initialize DOUBLE_BUFFERED
	flag to on.

	* gtk/gtkwidget.c (gtk_widget_draw) gtk/gtkmain.c (gtk_main_do_event):
	Honor DOUBLE_BUFFRED_FLAG

	* gtk/gtkwidget.c (gtk_widget_set_double_buffered): Add a
	function to set the DOUBLE_BUFFERED flag.

	* gtk/gtkwidget.h: Add GTK_DOUBLE_BUFFERED flag to indicate whether
	or not exposes done on the widget should be double-buffered.

	* gtk/gtkenums.h (GtkTextDirection): Reverse order of enumerations
	to be what would be expected. (Fixes problem with a
	g_return_if_fail() validating a TextDirection enumeration)

ChangeLog

@@ -1,3 +1,21 @@
+Fri Jun  2 12:56:01 2000  Owen Taylor  <otaylor@redhat.com>
+
+	* gtk/gtkwidget.c (gtk_widget_init): Initialize DOUBLE_BUFFERED
+	flag to on.
+
+	* gtk/gtkwidget.c (gtk_widget_draw) gtk/gtkmain.c (gtk_main_do_event): 
+	Honor DOUBLE_BUFFRED_FLAG
+
+	* gtk/gtkwidget.c (gtk_widget_set_double_buffered): Add a
+	function to set the DOUBLE_BUFFERED flag.
+
+	* gtk/gtkwidget.h: Add GTK_DOUBLE_BUFFERED flag to indicate whether
+	or not exposes done on the widget should be double-buffered.
+
+	* gtk/gtkenums.h (GtkTextDirection): Reverse order of enumerations
+	to be what would be expected. (Fixes problem with a
+	g_return_if_fail() validating a TextDirection enumeration)
+
 Thu Jun  1 23:05:13 2000  Owen Taylor  <otaylor@redhat.com>
 
 	* gtk/gtkwidget.c: Remove all references to 

ChangeLog.pre-2-0

@@ -1,3 +1,21 @@
+Fri Jun  2 12:56:01 2000  Owen Taylor  <otaylor@redhat.com>
+
+	* gtk/gtkwidget.c (gtk_widget_init): Initialize DOUBLE_BUFFERED
+	flag to on.
+
+	* gtk/gtkwidget.c (gtk_widget_draw) gtk/gtkmain.c (gtk_main_do_event): 
+	Honor DOUBLE_BUFFRED_FLAG
+
+	* gtk/gtkwidget.c (gtk_widget_set_double_buffered): Add a
+	function to set the DOUBLE_BUFFERED flag.
+
+	* gtk/gtkwidget.h: Add GTK_DOUBLE_BUFFERED flag to indicate whether
+	or not exposes done on the widget should be double-buffered.
+
+	* gtk/gtkenums.h (GtkTextDirection): Reverse order of enumerations
+	to be what would be expected. (Fixes problem with a
+	g_return_if_fail() validating a TextDirection enumeration)
+
 Thu Jun  1 23:05:13 2000  Owen Taylor  <otaylor@redhat.com>
 
 	* gtk/gtkwidget.c: Remove all references to 

ChangeLog.pre-2-10

@@ -1,3 +1,21 @@
+Fri Jun  2 12:56:01 2000  Owen Taylor  <otaylor@redhat.com>
+
+	* gtk/gtkwidget.c (gtk_widget_init): Initialize DOUBLE_BUFFERED
+	flag to on.
+
+	* gtk/gtkwidget.c (gtk_widget_draw) gtk/gtkmain.c (gtk_main_do_event): 
+	Honor DOUBLE_BUFFRED_FLAG
+
+	* gtk/gtkwidget.c (gtk_widget_set_double_buffered): Add a
+	function to set the DOUBLE_BUFFERED flag.
+
+	* gtk/gtkwidget.h: Add GTK_DOUBLE_BUFFERED flag to indicate whether
+	or not exposes done on the widget should be double-buffered.
+
+	* gtk/gtkenums.h (GtkTextDirection): Reverse order of enumerations
+	to be what would be expected. (Fixes problem with a
+	g_return_if_fail() validating a TextDirection enumeration)
+
 Thu Jun  1 23:05:13 2000  Owen Taylor  <otaylor@redhat.com>
 
 	* gtk/gtkwidget.c: Remove all references to 

ChangeLog.pre-2-2

@@ -1,3 +1,21 @@
+Fri Jun  2 12:56:01 2000  Owen Taylor  <otaylor@redhat.com>
+
+	* gtk/gtkwidget.c (gtk_widget_init): Initialize DOUBLE_BUFFERED
+	flag to on.
+
+	* gtk/gtkwidget.c (gtk_widget_draw) gtk/gtkmain.c (gtk_main_do_event): 
+	Honor DOUBLE_BUFFRED_FLAG
+
+	* gtk/gtkwidget.c (gtk_widget_set_double_buffered): Add a
+	function to set the DOUBLE_BUFFERED flag.
+
+	* gtk/gtkwidget.h: Add GTK_DOUBLE_BUFFERED flag to indicate whether
+	or not exposes done on the widget should be double-buffered.
+
+	* gtk/gtkenums.h (GtkTextDirection): Reverse order of enumerations
+	to be what would be expected. (Fixes problem with a
+	g_return_if_fail() validating a TextDirection enumeration)
+
 Thu Jun  1 23:05:13 2000  Owen Taylor  <otaylor@redhat.com>
 
 	* gtk/gtkwidget.c: Remove all references to 

ChangeLog.pre-2-4

@@ -1,3 +1,21 @@
+Fri Jun  2 12:56:01 2000  Owen Taylor  <otaylor@redhat.com>
+
+	* gtk/gtkwidget.c (gtk_widget_init): Initialize DOUBLE_BUFFERED
+	flag to on.
+
+	* gtk/gtkwidget.c (gtk_widget_draw) gtk/gtkmain.c (gtk_main_do_event): 
+	Honor DOUBLE_BUFFRED_FLAG
+
+	* gtk/gtkwidget.c (gtk_widget_set_double_buffered): Add a
+	function to set the DOUBLE_BUFFERED flag.
+
+	* gtk/gtkwidget.h: Add GTK_DOUBLE_BUFFERED flag to indicate whether
+	or not exposes done on the widget should be double-buffered.
+
+	* gtk/gtkenums.h (GtkTextDirection): Reverse order of enumerations
+	to be what would be expected. (Fixes problem with a
+	g_return_if_fail() validating a TextDirection enumeration)
+
 Thu Jun  1 23:05:13 2000  Owen Taylor  <otaylor@redhat.com>
 
 	* gtk/gtkwidget.c: Remove all references to 

ChangeLog.pre-2-6

@@ -1,3 +1,21 @@
+Fri Jun  2 12:56:01 2000  Owen Taylor  <otaylor@redhat.com>
+
+	* gtk/gtkwidget.c (gtk_widget_init): Initialize DOUBLE_BUFFERED
+	flag to on.
+
+	* gtk/gtkwidget.c (gtk_widget_draw) gtk/gtkmain.c (gtk_main_do_event): 
+	Honor DOUBLE_BUFFRED_FLAG
+
+	* gtk/gtkwidget.c (gtk_widget_set_double_buffered): Add a
+	function to set the DOUBLE_BUFFERED flag.
+
+	* gtk/gtkwidget.h: Add GTK_DOUBLE_BUFFERED flag to indicate whether
+	or not exposes done on the widget should be double-buffered.
+
+	* gtk/gtkenums.h (GtkTextDirection): Reverse order of enumerations
+	to be what would be expected. (Fixes problem with a
+	g_return_if_fail() validating a TextDirection enumeration)
+
 Thu Jun  1 23:05:13 2000  Owen Taylor  <otaylor@redhat.com>
 
 	* gtk/gtkwidget.c: Remove all references to 

ChangeLog.pre-2-8

@@ -1,3 +1,21 @@
+Fri Jun  2 12:56:01 2000  Owen Taylor  <otaylor@redhat.com>
+
+	* gtk/gtkwidget.c (gtk_widget_init): Initialize DOUBLE_BUFFERED
+	flag to on.
+
+	* gtk/gtkwidget.c (gtk_widget_draw) gtk/gtkmain.c (gtk_main_do_event): 
+	Honor DOUBLE_BUFFRED_FLAG
+
+	* gtk/gtkwidget.c (gtk_widget_set_double_buffered): Add a
+	function to set the DOUBLE_BUFFERED flag.
+
+	* gtk/gtkwidget.h: Add GTK_DOUBLE_BUFFERED flag to indicate whether
+	or not exposes done on the widget should be double-buffered.
+
+	* gtk/gtkenums.h (GtkTextDirection): Reverse order of enumerations
+	to be what would be expected. (Fixes problem with a
+	g_return_if_fail() validating a TextDirection enumeration)
+
 Thu Jun  1 23:05:13 2000  Owen Taylor  <otaylor@redhat.com>
 
 	* gtk/gtkwidget.c: Remove all references to 

gtk/gtkenums.h

@@ -81,8 +81,8 @@ typedef enum
 typedef enum
 {
   GTK_TEXT_DIR_NONE,
-  GTK_TEXT_DIR_RTL,
+  GTK_TEXT_DIR_LTR,
-  GTK_TEXT_DIR_LTR
+  GTK_TEXT_DIR_RTL
 } GtkTextDirection;
 
 /* justification for label and maybe other widgets (text?) */

gtk/gtkmain.c

@@ -742,12 +742,12 @@ gtk_main_do_event (GdkEvent *event)
       break;
       
     case GDK_EXPOSE:
-      if (event->any.window)
+      if (event->any.window && GTK_WIDGET_DOUBLE_BUFFERED (event_widget))
 	gdk_window_begin_paint_rect (event->any.window, &event->expose.area);
 
       gtk_widget_event (event_widget, event);
 
-      if (event->any.window)
+      if (event->any.window && GTK_WIDGET_DOUBLE_BUFFERED (event_widget))
 	gdk_window_end_paint (event->any.window);
       break;
 

gtk/gtkwidget.c

@@ -1023,7 +1023,8 @@ gtk_widget_init (GtkWidget *widget)
   GTK_WIDGET_SET_FLAGS (widget,
 			GTK_SENSITIVE |
 			GTK_PARENT_SENSITIVE |
-			(composite_child_stack ? GTK_COMPOSITE_CHILD : 0));
+			(composite_child_stack ? GTK_COMPOSITE_CHILD : 0) |
+			GTK_DOUBLE_BUFFERED);
 
   widget->style = gtk_widget_peek_style ();
   gtk_style_ref (widget->style);
@@ -1859,7 +1860,7 @@ gtk_widget_draw (GtkWidget    *widget,
 	  area = &temp_area;
 	}
 
-      if (!GTK_WIDGET_NO_WINDOW (widget))
+      if (!GTK_WIDGET_NO_WINDOW (widget) && GTK_WIDGET_DOUBLE_BUFFERED (widget))
 	{
 	  GdkRectangle tmp_area = *area;
 	  gint x, y;
@@ -1876,7 +1877,7 @@ gtk_widget_draw (GtkWidget    *widget,
       
       gtk_signal_emit (GTK_OBJECT (widget), widget_signals[DRAW], area);
 
-      if (!GTK_WIDGET_NO_WINDOW (widget))
+      if (!GTK_WIDGET_NO_WINDOW (widget) && GTK_WIDGET_DOUBLE_BUFFERED (widget))
 	gdk_window_end_paint (widget->window);
     }
 }
@@ -2802,6 +2803,19 @@ gtk_widget_set_app_paintable (GtkWidget *widget,
     }
 }
 
+void
+gtk_widget_set_double_buffered (GtkWidget *widget,
+				gboolean   double_buffered)
+{
+  g_return_if_fail (widget != NULL);
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+
+  if (double_buffered)
+    GTK_WIDGET_SET_FLAGS (widget, GTK_DOUBLE_BUFFERED);
+  else
+    GTK_WIDGET_UNSET_FLAGS (widget, GTK_DOUBLE_BUFFERED);
+}
+
 /*****************************************
  * gtk_widget_set_sensitive:
  *
@@ -3192,7 +3206,7 @@ gtk_widget_create_pango_context (GtkWidget *widget)
   PangoContext *context;
   char *lang, *p;
 
-  g_return_if_fail (GTK_IS_WIDGET (widget));
+  g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
 
   context = gdk_pango_context_get ();
 
@@ -3232,7 +3246,7 @@ gtk_widget_create_pango_layout (GtkWidget *widget)
   PangoLayout *layout;
   PangoContext *context;
 
-  g_return_if_fail (GTK_IS_WIDGET (widget));
+  g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
 
   context = gtk_widget_create_pango_context (widget);
   layout = pango_layout_new (context);
@@ -3998,7 +4012,7 @@ GtkTextDirection
 gtk_widget_get_direction (GtkWidget *widget)
 {
   g_return_val_if_fail (widget != NULL, GTK_TEXT_DIR_LTR);
-  g_return_if_fail (GTK_IS_WIDGET (widget));
+  g_return_val_if_fail (GTK_IS_WIDGET (widget), GTK_TEXT_DIR_LTR);
   
   if (GTK_WIDGET_DIRECTION_SET (widget))
     return GTK_WIDGET_DIRECTION_LTR (widget) ? GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;

gtk/gtkwidget.h

@@ -60,7 +60,8 @@ typedef enum
   GTK_COMPOSITE_CHILD  = 1 << 17,
   GTK_NO_REPARENT      = 1 << 18,
   GTK_APP_PAINTABLE    = 1 << 19,
-  GTK_RECEIVES_DEFAULT = 1 << 20
+  GTK_RECEIVES_DEFAULT = 1 << 20,
+  GTK_DOUBLE_BUFFERED  = 1 << 21
 } GtkWidgetFlags;
 
 /* Macro for casting a pointer to a GtkWidget or GtkWidgetClass pointer.
@@ -101,6 +102,7 @@ typedef enum
 #define GTK_WIDGET_COMPOSITE_CHILD(wid)	  ((GTK_WIDGET_FLAGS (wid) & GTK_COMPOSITE_CHILD) != 0)
 #define GTK_WIDGET_APP_PAINTABLE(wid)	  ((GTK_WIDGET_FLAGS (wid) & GTK_APP_PAINTABLE) != 0)
 #define GTK_WIDGET_RECEIVES_DEFAULT(wid)  ((GTK_WIDGET_FLAGS (wid) & GTK_RECEIVES_DEFAULT) != 0)
+#define GTK_WIDGET_DOUBLE_BUFFERED(wid)	  ((GTK_WIDGET_FLAGS (wid) & GTK_DOUBLE_BUFFERED) != 0)
   
 /* Macros for setting and clearing widget flags.
  */
@@ -511,6 +513,8 @@ void	   gtk_widget_set_sensitive	  (GtkWidget	       *widget,
 					   gboolean		sensitive);
 void	   gtk_widget_set_app_paintable	  (GtkWidget	       *widget,
 					   gboolean		app_paintable);
+void	   gtk_widget_set_double_buffered (GtkWidget	       *widget,
+					   gboolean	        double_buffered);
 void	   gtk_widget_set_parent	  (GtkWidget	       *widget,
 					   GtkWidget	       *parent);
 void	   gtk_widget_set_parent_window	  (GtkWidget	       *widget,