File gtk-vnc-Enable-double-buffering-on-GTK3.patch of Package gtk-vnc.675

From 3bbaa914d9bfafaf5a4d78867a578bddf5fc9134 Mon Sep 17 00:00:00 2001
From: "Daniel P. Berrange" <berrange@redhat.com>
Date: Wed, 29 Oct 2014 16:13:46 +0000
Subject: [PATCH] Enable double buffering on GTK3

---
 src/vncdisplay.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/vncdisplay.c /bsrc/vncdisplay.c
deleted file mode 100644
index c47f8ee..b990f97 100644
--- a/src/vncdisplay.c
+++ /bsrc/vncdisplay.c
@@ -2186,7 +2186,19 @@ static void vnc_display_init(VncDisplay *display)
                           GDK_LEAVE_NOTIFY_MASK |
                           GDK_SCROLL_MASK |
                           GDK_KEY_PRESS_MASK);
+    /* We already have off-screen buffers we render to
+     * but with GTK-3 there are problems with overlaid
+     * windows. We end up rendering over the top of the
+     * child overlaid windows despite having a clip
+     * mask set :-( We've turned on GTK3's built-in
+     * double buffering to work around this until we
+     * find a better idea.
+     */
+#if GTK_CHECK_VERSION(3, 0, 0)
+    gtk_widget_set_double_buffered(widget, TRUE);
+#else
     gtk_widget_set_double_buffered(widget, FALSE);
+#endif
 
     priv = display->priv = VNC_DISPLAY_GET_PRIVATE(display);
     memset(priv, 0, sizeof(VncDisplayPrivate));
-- 
2.1.2