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Fix painting glitch in elastic scroll.

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This commit is contained in:
John Preston 2023-07-11 19:18:20 +04:00
parent 763b3a37c3
commit 427fc4c8f7
1 changed files with 15 additions and 0 deletions
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15
ui/widgets/elastic_scroll.cpp
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@ -895,10 +895,25 @@ void ElasticScroll::applyScrollTo(int position, bool synthMouseMove) {
}
const auto weak = Ui::MakeWeak(this);
_dirtyState = true;
const auto was = _widget->geometry();
_widget->move(
_vertical ? _widget->x() : -position,
_vertical ? -position : _widget->y());
if (weak) {
const auto now = _widget->geometry();
const auto wasFrom = _vertical ? was.y() : was.x();
const auto wasTill = wasFrom
+ (_vertical ? was.height() : was.width());
const auto nowFrom = _vertical ? now.y() : now.x();
const auto nowTill = nowFrom
+ (_vertical ? now.height() : now.width());
const auto mySize = _vertical ? height() : width();
if ((wasFrom > 0 && wasFrom < mySize)
|| (wasTill > 0 && wasTill < mySize)
|| (nowFrom > 0 && nowFrom < mySize)
|| (nowTill > 0 && nowTill < mySize)) {
update();
}
if (_dirtyState) {
updateState();
}