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Windows QPA: Make frameless window respect WORKAREA

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Windows that have only set the WS_POPUP style do not take the WORKAREA
into account and maximize to fullscreen geometry. This patch maximizes a
WS_POPUP window to the size of the current working area, which can be
smaller than the screen geometry.

Fixes: QTBUG-129791
Fixes: QTBUG-130865
Pick-to: 6.5
Change-Id: I4c5beb0cd69c7ea4c585785a579a9d66bab12cc6
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
(cherry picked from commit 90be6609bdfc14df6aec52cbbba6adb4a610301e)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
Wladimir Leuschner 2024-11-06 10:23:14 +01:00 committed by Qt Cherry-pick Bot
parent 27ae8dbab4
commit 2c1a23f3c8
1 changed files with 18 additions and 2 deletions
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20
src/plugins/platforms/windows/qwindowswindow.cpp
View File

@ -2736,8 +2736,24 @@ void QWindowsWindow::setWindowState_sys(Qt::WindowStates newState)
setFlag(WithinMaximize);
if (newState & Qt::WindowFullScreen)
setFlag(MaximizeToFullScreen);
ShowWindow(m_data.hwnd,
(newState & Qt::WindowMaximized) ? SW_MAXIMIZE : SW_SHOWNOACTIVATE);
if (m_data.flags & Qt::FramelessWindowHint) {
if (newState == Qt::WindowNoState) {
const QRect &rect = m_savedFrameGeometry;
MoveWindow(m_data.hwnd, rect.x(), rect.y(), rect.width(), rect.height(), true);
} else {
HMONITOR monitor = MonitorFromWindow(m_data.hwnd, MONITOR_DEFAULTTONEAREST);
MONITORINFO monitorInfo = {};
monitorInfo.cbSize = sizeof(MONITORINFO);
GetMonitorInfo(monitor, &monitorInfo);
const RECT &rect = monitorInfo.rcWork;
m_savedFrameGeometry = geometry();
MoveWindow(m_data.hwnd, rect.left, rect.top,
rect.right - rect.left, rect.bottom - rect.top, true);
}
} else {
ShowWindow(m_data.hwnd,
(newState & Qt::WindowMaximized) ? SW_MAXIMIZE : SW_SHOWNOACTIVATE);
}
clearFlag(WithinMaximize);
clearFlag(MaximizeToFullScreen);
} else if (visible && (oldState & newState & Qt::WindowMinimized)) {