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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/QtTest>
#include <QtGui/qgraphicslinearlayout.h>
#include <QtGui/qgraphicswidget.h>
#include <QtGui/qgraphicsview.h>
class tst_QGraphicsLinearLayout : public QObject
{
Q_OBJECT
public:
tst_QGraphicsLinearLayout() {}
~tst_QGraphicsLinearLayout() {}
private slots:
void heightForWidth_data();
void heightForWidth();
};
struct MySquareWidget : public QGraphicsWidget
{
MySquareWidget() {}
virtual QSizeF sizeHint ( Qt::SizeHint which, const QSizeF & constraint = QSizeF() ) const
{
if (which != Qt::PreferredSize)
return QGraphicsWidget::sizeHint(which, constraint);
if (constraint.width() < 0)
return QGraphicsWidget::sizeHint(which, constraint);
return QSizeF(constraint.width(), constraint.width());
}
};
void tst_QGraphicsLinearLayout::heightForWidth_data()
{
QTest::addColumn<bool>("hfw");
QTest::addColumn<bool>("nested");
QTest::newRow("hfw") << true << false;
QTest::newRow("hfw, nested") << true << true;
QTest::newRow("not hfw") << false << false;
QTest::newRow("not hfw, nested") << false << true;
}
void tst_QGraphicsLinearLayout::heightForWidth()
{
QFETCH(bool, hfw);
QFETCH(bool, nested);
QGraphicsScene scene;
QGraphicsWidget *form = new QGraphicsWidget;
scene.addItem(form);
QGraphicsLinearLayout *outerlayout = 0;
if (nested) {
outerlayout = new QGraphicsLinearLayout(form);
for (int i = 0; i < 8; i++) {
QGraphicsLinearLayout *layout = new QGraphicsLinearLayout(Qt::Vertical);
outerlayout->addItem(layout);
outerlayout = layout;
}
}
QGraphicsLinearLayout *qlayout = 0;
qlayout = new QGraphicsLinearLayout(Qt::Vertical);
if (nested)
outerlayout->addItem(qlayout);
else
form->setLayout(qlayout);
MySquareWidget *widget = new MySquareWidget;
for (int i = 0; i < 1; i++) {
widget = new MySquareWidget;
QSizePolicy sizepolicy = widget->sizePolicy();
sizepolicy.setHeightForWidth(hfw);
widget->setSizePolicy(sizepolicy);
qlayout->addItem(widget);
}
// make sure only one iteration is done.
// run with tst_QGraphicsLinearLayout.exe "heightForWidth" -tickcounter -iterations 6
// this will iterate 6 times the whole test, (not only the benchmark)
// which should reduce warmup time and give a realistic picture of the performance of
// effectiveSizeHint()
QSizeF constraint(hfw ? 100 : -1, -1);
QBENCHMARK {
(void)form->effectiveSizeHint(Qt::PreferredSize, constraint);
}
}
QTEST_MAIN(tst_QGraphicsLinearLayout)
#include "tst_qgraphicslinearlayout.moc"
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