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Fix screen scaling factor calculation

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For some users on Windows the physicalDotsPerInch() could return values
that are smaller than the normal 96 DPI which leads to big dialog sizes
taking the entire screen.
So we need to ensure it is at least 96 DPI.
Closes #11405, #11407.
This commit is contained in:
Chocobo1 2019-10-28 14:17:59 +08:00
parent 7825d8627f
commit b5ee908f6c
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1 changed files with 4 additions and 1 deletions
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5
src/gui/utils.cpp
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@ -52,7 +52,10 @@ qreal Utils::Gui::screenScalingFactor(const QWidget *widget)
#ifdef Q_OS_WIN #ifdef Q_OS_WIN
const int screenNumber = qApp->desktop()->screenNumber(widget); const int screenNumber = qApp->desktop()->screenNumber(widget);
const QScreen *screen = QApplication::screens()[screenNumber]; 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_MAC) #elif defined(Q_OS_MAC)
return 1; return 1;
#else #else