diff options
| author | Paul Davis <paul@linuxaudiosystems.com> | 2014-03-04 10:04:21 -0500 |
|---|---|---|
| committer | Paul Davis <paul@linuxaudiosystems.com> | 2014-03-04 21:58:17 -0500 |
| commit | dde4d3bbc322f86f638ddc34a47b016f53a55633 (patch) | |
| tree | 61b2871ab447fec8de27ad6dbdc2470b07cca854 /libs/canvas/item.cc | |
| parent | 836e95d96437d1b3a0c4e0c3d9761ec5d9618a73 (diff) | |
only queue an item redraw from Item::show() or Item::Hide() if the call changes the visibility status of the item (i.e. make no-ops really be no-ops)
Diffstat (limited to 'libs/canvas/item.cc')
| -rw-r--r-- | libs/canvas/item.cc | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/libs/canvas/item.cc b/libs/canvas/item.cc index 8a8acce086..418382da17 100644 --- a/libs/canvas/item.cc +++ b/libs/canvas/item.cc @@ -240,15 +240,19 @@ Item::lower_to_bottom () void Item::hide () { - _visible = false; - _canvas->item_shown_or_hidden (this); + if (_visible) { + _visible = false; + _canvas->item_shown_or_hidden (this); + } } void Item::show () { - _visible = true; - _canvas->item_shown_or_hidden (this); + if (!_visible) { + _visible = true; + _canvas->item_shown_or_hidden (this); + } } Duple |