ardour/livetrax
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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)

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This commit is contained in:
Paul Davis 2014-03-04 10:04:21 -05:00
parent 836e95d964
commit dde4d3bbc3
1 changed files with 8 additions and 4 deletions
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4
libs/canvas/item.cc
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@ -240,16 +240,20 @@ Item::lower_to_bottom ()
void
Item::hide ()
{
if (_visible) {
_visible = false;
_canvas->item_shown_or_hidden (this);
}
}
void
Item::show ()
{
if (!_visible) {
_visible = true;
_canvas->item_shown_or_hidden (this);
}
}
Duple
Item::item_to_parent (Duple const & d) const