ardour/livetrax
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don't go through ::deliver_enter_leave() unnecessarily

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This commit is contained in:
Paul Davis 2014-01-10 11:02:05 -05:00
parent daf51a2e49
commit ffdf3ed017
1 changed files with 6 additions and 3 deletions
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9
libs/canvas/canvas.cc
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@ -338,6 +338,7 @@ GtkCanvas::pick_current_item (Duple const & point, int state)
/* no items at point, just send leave event below */
} else {
if (within_items.front() == _current_item) {
/* uppermost item at point is already _current_item */
return;
@ -346,7 +347,9 @@ GtkCanvas::pick_current_item (Duple const & point, int state)
_new_current_item = const_cast<Item*> (within_items.front());
}
deliver_enter_leave (point, state);
if (_new_current_item != _current_item) {
deliver_enter_leave (point, state);
}
}
void
@ -404,7 +407,7 @@ GtkCanvas::deliver_enter_leave (Duple const & point, int state)
} else if (_current_item->is_descendant_of (*_new_current_item)) {
/* move from descendant to ancestor (X: "_current_item is an
* inferior of _new_current_item")
* inferior ("child") of _new_current_item")
*
* Deliver "virtual" leave notifications to all items in the
* heirarchy between current and new_current.
@ -421,7 +424,7 @@ GtkCanvas::deliver_enter_leave (Duple const & point, int state)
} else if (_new_current_item->is_descendant_of (*_current_item)) {
/* move from ancestor to descendant (X: "_new_current_item is
* an inferior of _current_item")
* an inferior ("child") of _current_item")
*
* Deliver "virtual" enter notifications to all items in the
* heirarchy between current and new_current.