[gimp] app: sort present devices to the beginning of the device list

[Michael Natterer <mitch src gnome org>]

commit 9c98b0b8046bbe4e1bf43e072dcd918f31d7e37b
Author: Michael Natterer <mitch gimp org>
Date:   Thu Dec 9 22:02:24 2010 +0100

    app: sort present devices to the beginning of the device list
    
    and make sure the core pointer is always first in the list.

 app/widgets/gimpdeviceinfo.c |   14 ++++++++++++--
 1 files changed, 12 insertions(+), 2 deletions(-)
---
diff --git a/app/widgets/gimpdeviceinfo.c b/app/widgets/gimpdeviceinfo.c
index ee6e8c2..4abbb34 100644
--- a/app/widgets/gimpdeviceinfo.c
+++ b/app/widgets/gimpdeviceinfo.c
@@ -836,14 +836,24 @@ gint
 gimp_device_info_compare (GimpDeviceInfo *a,
                           GimpDeviceInfo *b)
 {
-  if (a->device && ! b->device)
+  if (a->device && a->display &&
+      a->device == gdk_display_get_core_pointer (a->display))
+    {
+      return -1;
+    }
+  else if (b->device && b->display &&
+           b->device == gdk_display_get_core_pointer (b->display))
     {
       return 1;
     }
-  else if (! a->device && b->device)
+  else if (a->device && ! b->device)
     {
       return -1;
     }
+  else if (! a->device && b->device)
+    {
+      return 1;
+    }
   else
     {
       return gimp_object_name_collate ((GimpObject *) a,