diff options
| author | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2022-07-01 18:23:08 +0200 |
|---|---|---|
| committer | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2022-07-12 09:02:38 +0200 |
| commit | 9e453dacc3855bafd3d7b692d76699c3bf07b9c6 (patch) | |
| tree | 71572e131f4095713e1dac45d61da9d35d6e7df0 /src/printsupport | |
| parent | f344f3d58e4814f4d64f837fe6f4237f0eb0556d (diff) | |
Fix printing of dpr>1 images on Windows
The win32 printing paint engine copies tiles of the source image into
temporary target images for printing. It does that using QPainter
painting. If there is a difference in DPR between source and target,
the painting will be scaled, leading to distorted results.
Fixes: QTBUG-99990
Pick-to: 6.4 6.3 6.2 5.15
Change-Id: Ie7368655ef3abeece49fb1a6421e2d6ea7ed5e95
Reviewed-by: André de la Rocha <andre.rocha@qt.io>
Diffstat (limited to 'src/printsupport')
| -rw-r--r-- | src/printsupport/platform/windows/qprintengine_win.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/printsupport/platform/windows/qprintengine_win.cpp b/src/printsupport/platform/windows/qprintengine_win.cpp index d6dd5eae5c..cd3e03d88e 100644 --- a/src/printsupport/platform/windows/qprintengine_win.cpp +++ b/src/printsupport/platform/windows/qprintengine_win.cpp @@ -563,6 +563,7 @@ void QWin32PrintEngine::drawPixmap(const QRectF &targetRect, QImage img(QSize(imgw, imgh), QImage::Format_RGB32); img.fill(Qt::white); QPainter painter(&img); + img.setDevicePixelRatio(pixmap.devicePixelRatio()); painter.drawPixmap(0,0, pixmap, tileSize * x, tileSize * y, imgw, imgh); QPixmap p = QPixmap::fromImage(img); |