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iOS: Implement QIOSScreen::logicalBaseDpi()

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logicalDpi() and logicalBaseDpi() should return the
same DPI on iOS, in order to make Qt not apply a scale
factor.

Accomplish this by overriding logicalBaseDpi() instead
of logicalDpi(). The default QPlatformScreen::logicalDpi()
implementation will then call logicalBaseDpi().

Fixes: QTBUG-92579
Change-Id: I7a27cf61f0154cef32098069ab3dfb29ad6acf27
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
(cherry picked from commit e3e070e87b3a8036f7200755ba32b57437304ee6)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
Morten Sørvig 2021-04-29 16:05:14 +02:00 committed by Qt Cherry-pick Bot
parent 9d6245e921
commit 207b9346f7
2 changed files with 2 additions and 2 deletions
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2
src/plugins/platforms/ios/qiosscreen.h
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@ -67,7 +67,7 @@ public:
int depth() const override; int depth() const override;
QImage::Format format() const override; QImage::Format format() const override;
QSizeF physicalSize() const override; QSizeF physicalSize() const override;
QDpi logicalDpi() const override; QDpi logicalBaseDpi() const override;
qreal devicePixelRatio() const override; qreal devicePixelRatio() const override;
qreal refreshRate() const override; qreal refreshRate() const override;

2
src/plugins/platforms/ios/qiosscreen.mm
View File

@ -462,7 +462,7 @@ QSizeF QIOSScreen::physicalSize() const
return m_physicalSize; return m_physicalSize;
} }
QDpi QIOSScreen::logicalDpi() const QDpi QIOSScreen::logicalBaseDpi() const
{ {
return QDpi(72, 72); return QDpi(72, 72);
} }