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Merge branch 'canvas_tweaks' of https://github.com/nmains/ardour into cairocanvas

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This commit is contained in:
Paul Davis 2014-06-18 11:20:10 -04:00
commit 36a34dc1a4
2 changed files with 27 additions and 10 deletions
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25
libs/canvas/canvas.cc
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@ -170,7 +170,9 @@ Canvas::item_shown_or_hidden (Item* item)
{
boost::optional<Rect> bbox = item->bounding_box ();
if (bbox) {
queue_draw_item_area (item, bbox.get ());
if (item->item_to_window (*bbox).intersection (visible_area ())) {
queue_draw_item_area (item, bbox.get ());
}
}
}
@ -183,7 +185,9 @@ Canvas::item_visual_property_changed (Item* item)
{
boost::optional<Rect> bbox = item->bounding_box ();
if (bbox) {
queue_draw_item_area (item, bbox.get ());
if (item->item_to_window (*bbox).intersection (visible_area ())) {
queue_draw_item_area (item, bbox.get ());
}
}
}
@ -195,15 +199,24 @@ Canvas::item_visual_property_changed (Item* item)
void
Canvas::item_changed (Item* item, boost::optional<Rect> pre_change_bounding_box)
{
Rect window_bbox = visible_area ();
if (pre_change_bounding_box) {
/* request a redraw of the item's old bounding box */
queue_draw_item_area (item, pre_change_bounding_box.get ());
if (item->item_to_window (*pre_change_bounding_box).intersection (window_bbox)) {
/* request a redraw of the item's old bounding box */
queue_draw_item_area (item, pre_change_bounding_box.get ());
}
}
boost::optional<Rect> post_change_bounding_box = item->bounding_box ();
if (post_change_bounding_box) {
/* request a redraw of the item's new bounding box */
queue_draw_item_area (item, post_change_bounding_box.get ());
if (item->item_to_window (*post_change_bounding_box).intersection (window_bbox)) {
/* request a redraw of the item's new bounding box */
queue_draw_item_area (item, post_change_bounding_box.get ());
}
}
}