[Mac][clutter-gtk]Make it support osx backend

[cee1 <fykcee1 gmail com>]

Hi all,

I'm trying to add some code to make clutter-gtk support osx
backend[1][2], but there's on clutter_osx_disable_event_retrieval in
clutter, I'm planning to implement it as win32 backend did -- set a
variable and check it in _clutter_backend_osx_events_init:

if (!_no_event_retrieval)

    _clutter_osx_event_loop_init ();

Does the above make sense?


----
[1] The gdk backend doesn't work -- "Unable to initialize Clutter:
Could not find a suitable CoglWinsys for a GdkDisplay of type
GdkQuartzDisplay"
[2] Changes to make it support osx backend:

diff --git a/clutter-gtk/Makefile.am b/clutter-gtk/Makefile.am
index 9a35919..363e0ec 100644
--- a/clutter-gtk/Makefile.am
+++ b/clutter-gtk/Makefile.am
@@ -15,6 +15,7 @@ AM_CPPFLAGS = \
  -DCLUTTER_GTK_COMPILATION \
  $(CLUTTER_GTK_DEPRECATED_CFLAGS) \
  $(CLUTTER_GTK_DEBUG_CFLAGS) \
+ "-xobjective-c" \
  $(NULL)

 AM_CFLAGS = $(MAINTAINER_CFLAGS) $(CLUTTER_GTK_DEPS_CFLAGS)
diff --git a/clutter-gtk/gtk-clutter-util.c b/clutter-gtk/gtk-clutter-util.c
index d4a9fa5..e4fe061 100644
--- a/clutter-gtk/gtk-clutter-util.c
+++ b/clutter-gtk/gtk-clutter-util.c
@@ -23,6 +23,10 @@
 #include <clutter/win32/clutter-win32.h>
 #endif

+#if defined(CLUTTER_WINDOWING_OSX)
+#include <clutter/osx/clutter-osx.h>
+#endif
+
 #if defined(GDK_WINDOWING_X11)
 #include <gdk/gdkx.h>
 #endif
@@ -31,6 +35,10 @@
 #include <gdk/gdkwin32.h>
 #endif

+#if defined(GDK_WINDOWING_QUARTZ)
+#include <gdk/gdkquartz.h>
+#endif
+
 /**
  * SECTION:gtk-clutter-util
  * @Title: Utility Functions
@@ -96,6 +104,14 @@ post_parse_hook (GOptionContext  *context,
     }
   else
 #endif
+#if defined(GDK_WINDOWING_QUARTZ) && defined(CLUTTER_WINDOWING_OSX)
+  if (clutter_check_windowing_backend (CLUTTER_WINDOWING_OSX) &&
+      GDK_IS_QUARTZ_DISPLAY (display))
+    {
+      /* let GTK+ be in charge of the event handling */
+    }
+  else
+#endif
     g_error ("*** Unsupported backend.");

   /* this is required since parsing clutter's option group did not



-- 
Regards,

- cee1