static gboolean
st_box_layout_get_paint_volume (ClutterActor *actor,
ClutterPaintVolume *volume)
{
StBoxLayout *self = ST_BOX_LAYOUT (actor);
gdouble x, y;
if (!CLUTTER_ACTOR_CLASS (st_box_layout_parent_class)->get_paint_volume (actor, volume))
return FALSE;
/* When scrolled, st_box_layout_apply_transform() includes the scroll offset
* and affects paint volumes. This is right for our children, but our paint volume
* is determined by our allocation and borders and doesn't scroll, so we need
* to reverse-compensate here, the same as we do when painting.
*/
get_border_paint_offsets (self, &x, &y);
if (x != 0 || y != 0)
{
ClutterVertex origin;
clutter_paint_volume_get_origin (volume, &origin);
origin.x += x;
origin.y += y;
clutter_paint_volume_set_origin (volume, &origin);
}
return TRUE;
}
static gboolean
mex_column_get_paint_volume (ClutterActor *self,
ClutterPaintVolume *volume)
{
MexColumnPrivate *priv = MEX_COLUMN (self)->priv;
ClutterVertex v;
if (!clutter_paint_volume_set_from_allocation (volume, self))
return FALSE;
if (priv->adjustment)
{
clutter_paint_volume_get_origin (volume, &v);
v.y += priv->adjustment_value,
clutter_paint_volume_set_origin (volume, &v);
}
return TRUE;
}
static gboolean
st_box_layout_get_paint_volume (ClutterActor *actor,
ClutterPaintVolume *volume)
{
StBoxLayout *self = ST_BOX_LAYOUT (actor);
gdouble x, y;
StBoxLayoutPrivate *priv = self->priv;
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
ClutterActorBox allocation_box;
ClutterActorBox content_box;
ClutterVertex origin;
/* When have an adjustment we are clipped to the content box, so base
* our paint volume on that. */
if (priv->hadjustment || priv->vadjustment)
{
clutter_actor_get_allocation_box (actor, &allocation_box);
st_theme_node_get_content_box (theme_node, &allocation_box, &content_box);
origin.x = content_box.x1 - allocation_box.x1;
origin.y = content_box.y1 - allocation_box.y2;
origin.z = 0.f;
clutter_paint_volume_set_width (volume, content_box.x2 - content_box.x1);
clutter_paint_volume_set_height (volume, content_box.y2 - content_box.y1);
}
else if (!CLUTTER_ACTOR_CLASS (st_box_layout_parent_class)->get_paint_volume (actor, volume))
return FALSE;
/* When scrolled, st_box_layout_apply_transform() includes the scroll offset
* and affects paint volumes. This is right for our children, but our paint volume
* is determined by our allocation and borders and doesn't scroll, so we need
* to reverse-compensate here, the same as we do when painting.
*/
get_border_paint_offsets (self, &x, &y);
if (x != 0 || y != 0)
{
clutter_paint_volume_get_origin (volume, &origin);
origin.x += x;
origin.y += y;
clutter_paint_volume_set_origin (volume, &origin);
}
return TRUE;
}
static gboolean
mx_viewport_get_paint_volume (ClutterActor *actor,
ClutterPaintVolume *volume)
{
MxViewportPrivate *priv = MX_VIEWPORT (actor)->priv;
ClutterVertex vertex;
if (!clutter_paint_volume_set_from_allocation (volume, actor))
return FALSE;
clutter_paint_volume_get_origin (volume, &vertex);
if (priv->hadjustment)
vertex.x += mx_adjustment_get_value (priv->hadjustment);
if (priv->vadjustment)
vertex.y += mx_adjustment_get_value (priv->vadjustment);
clutter_paint_volume_set_origin (volume, &vertex);
return TRUE;
}
