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Allow ensuring that a stage viewport is updated

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Since we only update the GL viewport when we receive a ConfigureNotify
event on X11, we also need a function to allow other toolkits to tell
a stage that the viewport should be updated.

This commit adds clutter_stage_ensure_viewport(), a function that simply
sets the private SYNC_MATRICES flag on the stage and then queues a
redraw.

This function should be called by libraries integrating Clutter with
other toolkits, like clutter-gtk or clutter-qt.
This commit is contained in:
Emmanuele Bassi 2009-01-12 11:18:11 +00:00
parent 4f6cc0b25f
commit f911a3a7a1
2 changed files with 26 additions and 0 deletions
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25
clutter/clutter-stage.c
View File

@ -1801,6 +1801,31 @@ clutter_stage_ensure_current (ClutterStage *stage)
_clutter_backend_ensure_context (ctx->backend, stage);
}
/**
* clutter_stage_ensure_viewport:
* @stage: a #ClutterStage
*
* Ensures that the GL viewport is updated with the current
* stage window size.
*
* This function will queue a redraw of @stage.
*
* This function should not be called by applications; it is used
* when embedding a #ClutterStage into a toolkit with another
* windowing system, like GTK+.
*
* Since: 1.0
*/
void
clutter_stage_ensure_viewport (ClutterStage *stage)
{
g_return_if_fail (CLUTTER_IS_STAGE (stage));
CLUTTER_SET_PRIVATE_FLAGS (stage, CLUTTER_ACTOR_SYNC_MATRICES);
clutter_stage_queue_redraw (stage);
}
static gboolean
redraw_update_idle (gpointer user_data)
{

1
clutter/clutter-stage.h
View File

@ -229,6 +229,7 @@ ClutterActor * clutter_stage_get_key_focus (ClutterStage *stage);
void clutter_stage_ensure_current (ClutterStage *stage);
void clutter_stage_queue_redraw (ClutterStage *stage);
gboolean clutter_stage_is_default (ClutterStage *stage);
void clutter_stage_ensure_viewport (ClutterStage *stage);
/* Commodity macro */
#define clutter_stage_add(stage,actor) G_STMT_START { \