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| author | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2017-04-18 15:02:08 +0200 |
|---|---|---|
| committer | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2017-04-18 13:08:43 +0000 |
| commit | 8b62673d9f0cf8aea126b3cd2f52686f013d7fe1 (patch) | |
| tree | f3f72636b8883839d4d69c4d1dd17efe442ff88e /src/widgets/effects | |
| parent | 84fb8c5ec909fa29512236aed3a77f595a2ac891 (diff) | |
| download | qtbase-8b62673d9f0cf8aea126b3cd2f52686f013d7fe1.tar.gz | |
QGraphicsDropShadowEffect: Fix for high DPI scaling
Preserve the device pixel ratio.
Task-number: QTBUG-60026
Change-Id: Ie818c582fe2c7b11ceb347b39cfbf7ea49361021
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Diffstat (limited to 'src/widgets/effects')
| -rw-r--r-- | src/widgets/effects/qpixmapfilter.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/widgets/effects/qpixmapfilter.cpp b/src/widgets/effects/qpixmapfilter.cpp index 2a069d7529..bb949fcebf 100644 --- a/src/widgets/effects/qpixmapfilter.cpp +++ b/src/widgets/effects/qpixmapfilter.cpp @@ -1316,6 +1316,7 @@ void QPixmapDropShadowFilter::draw(QPainter *p, return; QImage tmp(px.size(), QImage::Format_ARGB32_Premultiplied); + tmp.setDevicePixelRatio(px.devicePixelRatioF()); tmp.fill(0); QPainter tmpPainter(&tmp); tmpPainter.setCompositionMode(QPainter::CompositionMode_Source); @@ -1324,6 +1325,7 @@ void QPixmapDropShadowFilter::draw(QPainter *p, // blur the alpha channel QImage blurred(tmp.size(), QImage::Format_ARGB32_Premultiplied); + blurred.setDevicePixelRatio(px.devicePixelRatioF()); blurred.fill(0); QPainter blurPainter(&blurred); qt_blurImage(&blurPainter, tmp, d->radius, false, true); |