[gnome-panel] [panel] Use XRRGetScreenResourcesCurrent() when possible

[Vincent Untz <vuntz src gnome org>]

commit b7efb843fe6a23cf0efc41fd7c07b7cfa1c6074b
Author: Vincent Untz <vuntz gnome org>
Date:   Fri Aug 21 12:34:24 2009 +0200

    [panel] Use XRRGetScreenResourcesCurrent() when possible
    
    This is cheaper than XRRGetScreenResources(), but only possible with
    randr 1.3.
    
    Suggested by Federico Mena Quintero <federico novell com>

 gnome-panel/panel-multiscreen.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/gnome-panel/panel-multiscreen.c b/gnome-panel/panel-multiscreen.c
index 488595f..b301753 100644
--- a/gnome-panel/panel-multiscreen.c
+++ b/gnome-panel/panel-multiscreen.c
@@ -135,7 +135,15 @@ panel_multiscreen_get_randr_monitors_for_screen (GdkScreen     *screen,
 	xdisplay = GDK_SCREEN_XDISPLAY (screen);
 	xroot = GDK_WINDOW_XWINDOW (gdk_screen_get_root_window (screen));
 
+#if (RANDR_MAJOR > 1 || (RANDR_MAJOR == 1 && RANDR_MINOR >= 3))
+	if (have_randr_1_3)
+		resources = XRRGetScreenResourcesCurrent (xdisplay, xroot);
+	else
+		resources = XRRGetScreenResources (xdisplay, xroot);
+#else
 	resources = XRRGetScreenResources (xdisplay, xroot);
+#endif
+
 	if (!resources)
 		return FALSE;