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Avoid QWindow crashing in mapToGlobal when no platformWindow

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Add f60fb8f41741c2ca4dbd02b70d56e561be64d673 also to mapToGlobal.

Amends 67fa2585ac48e64972d1c0a20b3add5c3ef72e51

Avoids crashing in certain applications that use QQuickRenderControl
and QQuickWindows that are not backed by a QPlatformWindow.

Change-Id: Ie4a8bd7837973e7997f9b668f776ca2999147d75
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
This commit is contained in:
Laszlo Agocs 2023-12-06 17:53:59 +01:00
parent fa79b56bd8
commit 11e524d0cc
1 changed files with 6 additions and 1 deletions
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7
src/gui/kernel/qwindow.cpp
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@ -2850,7 +2850,12 @@ QPointF QWindow::mapToGlobal(const QPointF &pos) const
// Map the position (and the window's global position) to native coordinates, perform
// the addition, and then map back to device independent coordinates.
QPointF nativeLocalPos = QHighDpi::toNativeLocalPosition(pos, this);
QPointF nativeWindowGlobalPos = d->platformWindow->mapToGlobal(QPoint(0,0)).toPointF();
// Get the native window position directly from the platform window
// if available (it can be null if the window hasn't been shown yet),
// or fall back to scaling the QWindow position.
QPointF nativeWindowGlobalPos = d->platformWindow
? d->platformWindow->mapToGlobal(QPoint(0,0)).toPointF()
: QHighDpi::toNativeGlobalPosition(QPointF(d->globalPosition()), this);
QPointF nativeGlobalPos = nativeLocalPos + nativeWindowGlobalPos;
QPointF deviceIndependentGlobalPos = QHighDpi::fromNativeGlobalPosition(nativeGlobalPos, this);
return deviceIndependentGlobalPos;