diff options
author | Edward Welbourne <edward.welbourne@qt.io> | 2016-07-28 13:20:41 +0200 |
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committer | Edward Welbourne <edward.welbourne@qt.io> | 2016-08-01 18:20:00 +0200 |
commit | f6fc34294f5691da8aa7ab8dc0452c6fa9036b67 (patch) | |
tree | 3b8fe9841f88aa81e2f8f2d57cbbca2c4736ca6f /src/widgets/styles/qwindowsstyle.cpp | |
parent | 6f75096afc000991111bb0fd7a7e530ce3518627 (diff) | |
parent | 0eb77c3011ee4d6bbc46dd2d40c9324e9bfcbecf (diff) |
Merge remote-tracking branch 'origin/5.7' into dev
Conflicts:
configure
5.7 now supports clang on android; but dev re-worked configure
src/gui/kernel/qevent.h
One side renamed a parameter of a constructor; the other added an
alternate constructor on the next line. Applied the rename to both
for consistency.
tests/auto/tools/moc/tst_moc.cpp
Each side added a new test at the end.
.qmake.conf
Ignored 5.7's change to MODULE_VERSION.
configure.json
No conflict noticed by git; but changes in 5.7 were needed for the
re-worked configure to accommodate 5.7's stricter handling of C++11.
Change-Id: I9cda53836a32d7bf83828212c7ea00b1de3e09d2
Diffstat (limited to 'src/widgets/styles/qwindowsstyle.cpp')
-rw-r--r-- | src/widgets/styles/qwindowsstyle.cpp | 47 |
1 files changed, 46 insertions, 1 deletions
diff --git a/src/widgets/styles/qwindowsstyle.cpp b/src/widgets/styles/qwindowsstyle.cpp index b41ad4249e..c3a50968e2 100644 --- a/src/widgets/styles/qwindowsstyle.cpp +++ b/src/widgets/styles/qwindowsstyle.cpp @@ -64,8 +64,12 @@ #include "qlistview.h" #include <private/qmath_p.h> #include <qmath.h> +#include <QtGui/qscreen.h> +#include <QtGui/qwindow.h> #include <qpa/qplatformtheme.h> +#include <qpa/qplatformscreen.h> #include <private/qguiapplication_p.h> +#include <private/qhighdpiscaling_p.h> #include <private/qstylehelper_p.h> #include <private/qstyleanimation_p.h> @@ -360,6 +364,47 @@ int QWindowsStylePrivate::fixedPixelMetric(QStyle::PixelMetric pm) return QWindowsStylePrivate::InvalidMetric; } +static QWindow *windowOf(const QWidget *w) +{ + QWindow *result = Q_NULLPTR; + if (w) { + result = w->windowHandle(); + if (!result) { + if (const QWidget *np = w->nativeParentWidget()) + result = np->windowHandle(); + } + } + return result; +} + +static QScreen *screenOf(const QWidget *w) +{ + if (const QWindow *window = windowOf(w)) + return window->screen(); + return QGuiApplication::primaryScreen(); +} + +// Calculate the overall scale factor to obtain Qt Device Independent +// Pixels from a native Windows size. Divide by devicePixelRatio +// and account for secondary screens with differing logical DPI. +qreal QWindowsStylePrivate::nativeMetricScaleFactor(const QWidget *widget) +{ + if (!QHighDpiScaling::isActive()) + return 1; + qreal result = qreal(1) / QWindowsStylePrivate::devicePixelRatio(widget); + if (QGuiApplicationPrivate::screen_list.size() > 1) { + const QScreen *primaryScreen = QGuiApplication::primaryScreen(); + const QScreen *screen = screenOf(widget); + if (screen != primaryScreen) { + const qreal primaryLogicalDpi = primaryScreen->handle()->logicalDpi().first; + const qreal logicalDpi = screen->handle()->logicalDpi().first; + if (!qFuzzyCompare(primaryLogicalDpi, logicalDpi)) + result *= logicalDpi / primaryLogicalDpi; + } + } + return result; +} + /*! \reimp */ @@ -367,7 +412,7 @@ int QWindowsStyle::pixelMetric(PixelMetric pm, const QStyleOption *opt, const QW { int ret = QWindowsStylePrivate::pixelMetricFromSystemDp(pm, opt, widget); if (ret != QWindowsStylePrivate::InvalidMetric) - return qRound(qreal(ret) / QWindowsStylePrivate::devicePixelRatio(widget)); + return qRound(qreal(ret) * QWindowsStylePrivate::nativeMetricScaleFactor(widget)); ret = QWindowsStylePrivate::fixedPixelMetric(pm); if (ret != QWindowsStylePrivate::InvalidMetric) |