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Merge pull request #11409 from Chocobo1/dpi

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Fix screen scaling factor calculation
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Mike Tzou 2019-10-29 09:56:17 +08:00 committed by GitHub
commit c73d698718
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1 changed files with 4 additions and 1 deletions
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src/gui/utils.cpp
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@ -68,7 +68,10 @@ qreal Utils::Gui::screenScalingFactor(const QWidget *widget)
#ifdef Q_OS_WIN
const int screenNumber = qApp->desktop()->screenNumber(widget);
const QScreen *screen = QApplication::screens()[screenNumber];
return (screen->logicalDotsPerInch() / screen->physicalDotsPerInch());
// Workaround for QScreen::physicalDotsPerInch() that could return
// values that are smaller than the normal 96 DPI on Windows
const qreal physicalDPI = qMax<qreal>(screen->physicalDotsPerInch(), 96);
return (screen->logicalDotsPerInch() / physicalDPI);
#elif defined(Q_OS_MACOS)
return 1;
#else