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Qt: Support DPI change events

This commit is contained in:
TellowKrinkle 2022-05-26 22:21:56 -05:00 committed by refractionpcsx2
parent db4bf08475
commit d74623faf9
1 changed files with 5 additions and 4 deletions
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9
pcsx2-qt/DisplayWidget.cpp
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@ -230,16 +230,17 @@ bool DisplayWidget::event(QEvent* event)
return true; return true;
} }
// According to https://bugreports.qt.io/browse/QTBUG-95925 the recommended practice for handling DPI change is responding to paint events
case QEvent::Paint:
case QEvent::Resize: case QEvent::Resize:
{ {
QWidget::event(event); QWidget::event(event);
const qreal dpr = devicePixelRatioFromScreen(); const qreal dpr = devicePixelRatioFromScreen();
const QSize size = static_cast<QResizeEvent*>(event)->size(); const int scaled_width = static_cast<int>(std::ceil(static_cast<qreal>(width()) * devicePixelRatioFromScreen()));
const int width = static_cast<int>(std::ceil(static_cast<qreal>(size.width()) * devicePixelRatioFromScreen())); const int scaled_height = static_cast<int>(std::ceil(static_cast<qreal>(height()) * devicePixelRatioFromScreen()));
const int height = static_cast<int>(std::ceil(static_cast<qreal>(size.height()) * devicePixelRatioFromScreen()));
emit windowResizedEvent(width, height, dpr); emit windowResizedEvent(scaled_width, scaled_height, dpr);
return true; return true;
} }