fenix/PDF4QT
1
0
Fork 0
mirror of https://github.com/JakubMelka/PDF4QT.git synced 2025-06-05 21:59:17 +02:00
Code Issues Packages Projects Releases Wiki Activity

Issue #123: DPI scaling

Browse Source
This commit is contained in:
Jakub Melka
2024-02-10 18:42:58 +01:00
parent f3e1a94e1c
commit d1d0fe30d6
8 changed files with 103 additions and 66 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
Pdf4QtLibWidgets/sources/pdfdrawwidget.cpp
View File

@ -583,9 +583,16 @@ void PDFDrawWidget::paintEvent(QPaintEvent* event)
case RendererEngine::Blend2D:
{
QRect rect = this->rect();
if (m_blend2DframeBuffer.size() != rect.size())
qreal devicePixelRatio = devicePixelRatioF();
m_blend2DframeBuffer.setDevicePixelRatio(devicePixelRatio);
m_blend2DframeBuffer.setDotsPerMeterX(logicalDpiX());
m_blend2DframeBuffer.setDotsPerMeterY(logicalDpiY());
QSize requiredSize = rect.size() * devicePixelRatio;
if (m_blend2DframeBuffer.size() != requiredSize)
{
m_blend2DframeBuffer = QImage(rect.size(), QImage::Format_ARGB32_Premultiplied);
m_blend2DframeBuffer = QImage(requiredSize, QImage::Format_ARGB32_Premultiplied);
}
PDFBLPaintDevice blPaintDevice(m_blend2DframeBuffer, true);