From 9ce82b0feb6f19c6246198f957ed60edf2a11720 Mon Sep 17 00:00:00 2001
From: Simon Tatham <anakin@pobox.com>
Date: Sat, 29 May 2010 15:43:41 +0000
Subject: [PATCH] Patch from Mark Wooding to disable GTK's internal double
 buffering, which I didn't know about, but which is clearly a waste of effort
 since we keep our own backing pixmap for the puzzle window.

[originally from svn r8960]
---
 gtk.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gtk.c b/gtk.c
index 694a41a..d551f47 100644
--- a/gtk.c
+++ b/gtk.c
@@ -1872,6 +1872,9 @@ static frontend *new_window(char *arg, int argtype, char **error)
 	fe->statusbar = NULL;
 
     fe->area = gtk_drawing_area_new();
+#if GTK_CHECK_VERSION(2,0,0)
+    GTK_WIDGET_UNSET_FLAGS(fe->area, GTK_DOUBLE_BUFFERED);
+#endif
     get_size(fe, &x, &y);
     gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
     fe->w = x;
-- 
2.30.2