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backend: Provide a default create_stage()

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We can now safely create a ClutterStageWindow in the shared code path,
instead of deferring to the backend.
This commit is contained in:
Emmanuele Bassi 2011-11-04 19:00:49 +00:00
parent 9c038ebefb
commit 828ca2982f
1 changed files with 32 additions and 0 deletions
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32
clutter/clutter-backend.c
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@ -389,6 +389,37 @@ clutter_backend_real_get_features (ClutterBackend *backend)
return flags;
}
static ClutterStageWindow *
clutter_backend_real_create_stage (ClutterBackend *backend,
ClutterStage *wrapper,
GError **error)
{
ClutterBackendClass *klass;
if (!clutter_feature_available (CLUTTER_FEATURE_STAGE_MULTIPLE))
{
ClutterStageManager *manager = clutter_stage_manager_get_default ();
if (clutter_stage_manager_get_default_stage (manager) != NULL)
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
_("The backend of type '%s' does not support "
"creating multiple stages"),
G_OBJECT_TYPE_NAME (backend));
return NULL;
}
}
klass = CLUTTER_BACKEND_GET_CLASS (backend);
g_assert (klass->stage_window_type != G_TYPE_INVALID);
return g_object_new (klass->stage_window_type,
"backend", backend,
"wrapper", wrapper,
NULL);
}
static void
clutter_backend_real_redraw (ClutterBackend *backend,
ClutterStage *stage)
@ -576,6 +607,7 @@ clutter_backend_class_init (ClutterBackendClass *klass)
klass->create_context = clutter_backend_real_create_context;
klass->ensure_context = clutter_backend_real_ensure_context;
klass->get_features = clutter_backend_real_get_features;
klass->create_stage = clutter_backend_real_create_stage;
klass->redraw = clutter_backend_real_redraw;
}