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| author | Lars Knoll <lars.knoll@qt.io> | 2017-12-30 17:39:21 +0100 |
|---|---|---|
| committer | Lars Knoll <lars.knoll@qt.io> | 2018-01-02 09:58:44 +0100 |
| commit | 0f315adf9199efcfafa44371464ab6d1fc866774 (patch) | |
| tree | 35b67591255624c670aff0579e45b2973f56fd81 /src/gui/kernel/qhighdpiscaling.cpp | |
| parent | 2b0eb3fac319a17dd92903106d501f0f06df871f (diff) | |
| parent | 52b85212a2ec8ec5bf187f6cd00b669a45bcf0bd (diff) | |
Merge remote-tracking branch 'origin/5.10' into dev
Conflicts:
.qmake.conf
sc/corelib/io/qfsfileengine_p.h
src/corelib/io/qstorageinfo_unix.cpp
src/platformsupport/eglconvenience/qeglpbuffer_p.h
src/platformsupport/input/libinput/qlibinputkeyboard.cpp
src/platformsupport/input/libinput/qlibinputpointer.cpp
src/plugins/platforms/cocoa/qcocoamenu.mm
src/plugins/platforms/ios/qiosscreen.h
src/plugins/platforms/ios/qioswindow.h
src/plugins/platforms/ios/quiview.mm
src/printsupport/dialogs/qpagesetupdialog_unix_p.h
src/printsupport/dialogs/qprintpreviewdialog.cpp
src/printsupport/widgets/qcupsjobwidget_p.h
src/widgets/widgets/qmenu.cpp
tests/auto/corelib/tools/qdatetime/tst_qdatetime.cpp
tests/auto/widgets/itemviews/qtreeview/tst_qtreeview.cpp
Change-Id: Iecb4883122efe97ef0ed850271e6c51bab568e9c
Diffstat (limited to 'src/gui/kernel/qhighdpiscaling.cpp')
| -rw-r--r-- | src/gui/kernel/qhighdpiscaling.cpp | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/src/gui/kernel/qhighdpiscaling.cpp b/src/gui/kernel/qhighdpiscaling.cpp index caef942840..8689f9f3b1 100644 --- a/src/gui/kernel/qhighdpiscaling.cpp +++ b/src/gui/kernel/qhighdpiscaling.cpp @@ -376,8 +376,22 @@ qreal QHighDpiScaling::screenSubfactor(const QPlatformScreen *screen) { qreal factor = qreal(1.0); if (screen) { - if (m_usePixelDensity) - factor *= screen->pixelDensity(); + if (m_usePixelDensity) { + qreal pixelDensity = screen->pixelDensity(); + + // Pixel density reported by the screen is sometimes not precise enough, + // so recalculate it: divide px (physical pixels) by dp (device-independent pixels) + // for both width and height, and then use the average if it is different from + // the one initially reported by the screen + QRect screenGeometry = screen->geometry(); + qreal wFactor = qreal(screenGeometry.width()) / qRound(screenGeometry.width() / pixelDensity); + qreal hFactor = qreal(screenGeometry.height()) / qRound(screenGeometry.height() / pixelDensity); + qreal averageDensity = (wFactor + hFactor) / 2; + if (!qFuzzyCompare(pixelDensity, averageDensity)) + pixelDensity = averageDensity; + + factor *= pixelDensity; + } if (m_screenFactorSet) { QVariant screenFactor = screen->screen()->property(scaleFactorProperty); if (screenFactor.isValid()) |