diff --git a/src/layouts/qquicklayout.cpp b/src/layouts/qquicklayout.cpp index c54d94e7a3d80985fb7df71660809d51324a243c..6d36a92e60545d18a5001d84e7d9ac85feacf684 100644 --- a/src/layouts/qquicklayout.cpp +++ b/src/layouts/qquicklayout.cpp @@ -401,16 +401,19 @@ void QQuickLayoutAttached::invalidateItem() QQuickLayout *QQuickLayoutAttached::parentLayout() const { - QQuickItem *parentItem = item()->parentItem(); - if (qobject_cast<QQuickLayout *>(parentItem)) - return static_cast<QQuickLayout *>(parentItem); + QQuickItem *parentItem = item(); + if (parentItem) { + parentItem = parentItem->parentItem(); + return qobject_cast<QQuickLayout *>(parentItem); + } else { + qWarning("Layout must be attached to Item elements"); + } return 0; } QQuickItem *QQuickLayoutAttached::item() const { - Q_ASSERT(qobject_cast<QQuickItem*>(parent())); - return static_cast<QQuickItem*>(parent()); + return qobject_cast<QQuickItem *>(parent()); } diff --git a/tests/auto/controls/data/tst_layout.qml b/tests/auto/controls/data/tst_layout.qml new file mode 100644 index 0000000000000000000000000000000000000000..2e25b96ce836145c09312f0685d323c08d40a953 --- /dev/null +++ b/tests/auto/controls/data/tst_layout.qml @@ -0,0 +1,56 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Tasuku Suzuki <stasuku@gmail.com> +** Contact: http://www.qt-project.org/legal +** +** This file is part of the Qt Quick Controls module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +import QtQuick 2.1 +import QtTest 1.0 + +TestCase { + id: testCase + name: "Tests_Layout" + when:windowShown + width:400 + height:400 + + function test_invalidParent() { + var object = Qt.createQmlObject('import QtQuick 2.1; import QtQuick.Layouts 1.0; QtObject { Layout.fillWidth: true }', testCase, ''); + object.destroy() + } +} +