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Windows QPA: don't take dpi rounding policy into account when fullscreen 

With some HighDpiScaleFactorRoundingPolicy, going fullscreen can end up
not filling the whole screen. In this case, ignore the rounding (only for
the window size, not its content).

Fixes: QTBUG-115954
Pick-to: 6.7 6.6
Change-Id: Ie87196358ef28dbe2fcbc180b1740ed9f784b4a0
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
bb10
Timothée Keller 2023-08-14 16:11:35 +02:00
parent 4c86f9b804
commit da473f3a80
1 changed files with 10 additions and 10 deletions
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20
src/plugins/platforms/windows/qwindowswindow.cpp
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@ -2579,26 +2579,26 @@ void QWindowsWindow::setWindowState_sys(Qt::WindowStates newState)
if (testFlag(HasBorderInFullScreen))
newStyle |= WS_BORDER;
setStyle(newStyle);
// Use geometry of QWindow::screen() within creation or the virtual screen the
// window is in (QTBUG-31166, QTBUG-30724).
const QScreen *screen = window()->screen();
if (!screen)
screen = QGuiApplication::primaryScreen();
const QRect r = screen ? QHighDpi::toNativePixels(screen->geometry(), window()) : m_savedFrameGeometry;
const HMONITOR monitor = MonitorFromWindow(m_data.hwnd, MONITOR_DEFAULTTONEAREST);
MONITORINFO monitorInfo = {};
monitorInfo.cbSize = sizeof(MONITORINFO);
GetMonitorInfoW(monitor, &monitorInfo);
const QRect screenGeometry(monitorInfo.rcMonitor.left, monitorInfo.rcMonitor.top,
monitorInfo.rcMonitor.right - monitorInfo.rcMonitor.left,
monitorInfo.rcMonitor.bottom - monitorInfo.rcMonitor.top);
if (newState & Qt::WindowMinimized) {
setMinimizedGeometry(m_data.hwnd, r);
setMinimizedGeometry(m_data.hwnd, screenGeometry);
if (stateChange & Qt::WindowMaximized)
setRestoreMaximizedFlag(m_data.hwnd, newState & Qt::WindowMaximized);
} else {
const UINT swpf = SWP_FRAMECHANGED | SWP_NOACTIVATE;
const bool wasSync = testFlag(SynchronousGeometryChangeEvent);
setFlag(SynchronousGeometryChangeEvent);
SetWindowPos(m_data.hwnd, HWND_TOP, r.left(), r.top(), r.width(), r.height(), swpf);
SetWindowPos(m_data.hwnd, HWND_TOP, screenGeometry.left(), screenGeometry.top(), screenGeometry.width(), screenGeometry.height(), swpf);
if (!wasSync)
clearFlag(SynchronousGeometryChangeEvent);
clearFlag(MaximizeToFullScreen);
QWindowSystemInterface::handleGeometryChange(window(), r);
QWindowSystemInterface::handleGeometryChange(window(), screenGeometry);
QWindowSystemInterface::flushWindowSystemEvents(QEventLoop::ExcludeUserInputEvents);
}
} else {