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paint-volume: don't round paint-volume from allocation

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The implementation of _clutter_actor_set_default_paint_volume which
simply uses the actor's allocation to determine a paint-volume was
needlessly using the allocation rounded to integers by internally using
clutter_actor_get_allocation_geometry instead of
clutter_actor_get_allocation_box. This was introducing a lot of
instability into the paint-volume due to the way rounding was done.

The code has now been updated to use clutter_actor_get_allocation_box
so we are dealing with the floating point allocation instead.

Signed-off-by: Neil Roberts <neil@linux.intel.com>
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
This commit is contained in:
Robert Bragg 2011-07-12 00:44:47 +01:00
parent 01cf70594d
commit ad234b303c
1 changed files with 5 additions and 5 deletions
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10
clutter/clutter-paint-volume.c
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@ -952,7 +952,7 @@ _clutter_actor_set_default_paint_volume (ClutterActor *self,
GType check_gtype,
ClutterPaintVolume *volume)
{
ClutterGeometry geometry = { 0, };
ClutterActorBox box;
if (check_gtype != G_TYPE_INVALID)
{
@ -967,14 +967,14 @@ _clutter_actor_set_default_paint_volume (ClutterActor *self,
if (!clutter_actor_has_allocation (self))
return FALSE;
clutter_actor_get_allocation_geometry (self, &geometry);
clutter_actor_get_allocation_box (self, &box);
/* a zero-sized actor has no paint volume */
if (geometry.width == 0 || geometry.height == 0)
if (box.x1 == box.x2 || box.y1 == box.y2)
return FALSE;
clutter_paint_volume_set_width (volume, geometry.width);
clutter_paint_volume_set_height (volume, geometry.height);
clutter_paint_volume_set_width (volume, box.x2 - box.x1);
clutter_paint_volume_set_height (volume, box.y2 - box.y1);
return TRUE;
}