Widgets going "undercover" should also undercover the QWindow
Sometimes Qt wants to hide a widget without calling setVisible(false). This is usually done by setting the widgets geometry outside the parents clip rect (and usually by setting its y coordinate to a sufficiently negative y coordinate). QSplitter uses this when it needs to collapse its children. Previously the QWindow was just moved straight above the QWidget it was hosted in. Task-number: QTBUG-38475 Change-Id: I154dd4d13f108c3d34c64eadb41dd6b477dc5c4e Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com> Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
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@ -1,6 +1,6 @@
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/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the QtWidgets module of the Qt Toolkit.
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@ -72,7 +72,14 @@ public:
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void updateGeometry() {
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Q_Q(QWindowContainer);
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if (usesNativeWidgets)
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if (q->geometry().bottom() <= 0 || q->geometry().right() <= 0)
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/* Qt (e.g. QSplitter) sometimes prefer to hide a widget by *not* calling
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setVisible(false). This is often done by setting its coordinates to a sufficiently
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negative value so that its clipped outside the parent. Since a QWindow is not clipped
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to widgets in general, it needs to be dealt with as a special case.
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*/
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window->setGeometry(q->geometry());
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else if (usesNativeWidgets)
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window->setGeometry(q->rect());
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else
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window->setGeometry(QRect(q->mapTo(q->window(), QPoint()), q->size()));
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