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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <qtest.h>
#include <QtGui>
static void processEvents()
{
QApplication::flush();
QApplication::processEvents();
QApplication::processEvents();
}
class UpdateWidget : public QWidget
{
public:
UpdateWidget(int rows, int columns)
: QWidget(0), rowCount(0), columnCount(0), opaqueChildren(false)
{
fill(rows, columns);
}
UpdateWidget(QWidget *parent = 0)
: QWidget(parent), rowCount(0), columnCount(0), opaqueChildren(false) {}
void fill(int rows, int columns)
{
if (rows == rowCount && columns == columnCount)
return;
delete layout();
QGridLayout *layout = new QGridLayout;
rowCount = rows;
columnCount = columns;
for (int row = 0; row < rowCount; ++row) {
for (int column = 0; column < columnCount; ++column) {
UpdateWidget *widget = new UpdateWidget;
widget->setFixedSize(20, 20);
layout->addWidget(widget, row, column);
children.append(widget);
}
}
setLayout(layout);
adjustSize();
QTest::qWait(250);
processEvents();
}
void setOpaqueChildren(bool enable)
{
if (opaqueChildren != enable) {
foreach (QWidget *w, children)
w->setAttribute(Qt::WA_OpaquePaintEvent, enable);
opaqueChildren = enable;
processEvents();
}
}
void paintEvent(QPaintEvent *)
{
static int color = Qt::black;
QPainter painter(this);
painter.fillRect(rect(), Qt::GlobalColor(color));
if (++color > Qt::darkYellow)
color = Qt::black;
}
QRegion updateRegion;
QList<UpdateWidget*> children;
int rowCount;
int columnCount;
bool opaqueChildren;
};
class tst_QWidget : public QObject
{
Q_OBJECT
public slots:
void initTestCase();
void init();
private slots:
void update_data();
void update();
void updatePartial_data();
void updatePartial();
void updateComplex_data();
void updateComplex();
private:
UpdateWidget widget;
};
void tst_QWidget::initTestCase()
{
widget.show();
QTest::qWaitForWindowShown(&widget);
QTest::qWait(300);
processEvents();
}
void tst_QWidget::init()
{
QVERIFY(widget.isVisible());
for (int i = 0; i < 3; ++i)
processEvents();
}
void tst_QWidget::update_data()
{
QTest::addColumn<int>("rows");
QTest::addColumn<int>("columns");
QTest::addColumn<int>("numUpdates");
QTest::addColumn<bool>("opaque");
QTest::newRow("10x10x1 transparent") << 10 << 10 << 1 << false;
QTest::newRow("10x10x10 transparent") << 10 << 10 << 10 << false;
QTest::newRow("10x10x100 transparent") << 10 << 10 << 100 << false;
QTest::newRow("10x10x1 opaque") << 10 << 10 << 1 << true;
QTest::newRow("10x10x10 opaque") << 10 << 10 << 10 << true;
QTest::newRow("10x10x100 opaque") << 10 << 10 << 100 << true;
#ifndef Q_OS_SYMBIAN
//These test cases cause stack overflow in QWidgetPrivate::paintSiblingsRecursive
//see http://bugreports.qt.nokia.com/browse/QTBUG-8512
//Symbian threads have a hard limit of 80kB user stack
QTest::newRow("25x25x1 transparent ") << 25 << 25 << 1 << false;
QTest::newRow("25x25x10 transparent") << 25 << 25 << 10 << false;
QTest::newRow("25x25x100 transparent") << 25 << 25 << 100 << false;
QTest::newRow("25x25x1 opaque") << 25 << 25 << 1 << true;
QTest::newRow("25x25x10 opaque") << 25 << 25 << 10 << true;
QTest::newRow("25x25x100 opaque") << 25 << 25 << 100 << true;
#endif
}
void tst_QWidget::update()
{
QFETCH(int, rows);
QFETCH(int, columns);
QFETCH(int, numUpdates);
QFETCH(bool, opaque);
widget.fill(rows, columns);
widget.setOpaqueChildren(opaque);
QBENCHMARK {
for (int i = 0; i < widget.children.size(); ++i) {
for (int j = 0; j < numUpdates; ++j)
widget.children.at(i)->update();
QApplication::processEvents();
}
}
QApplication::flush();
}
void tst_QWidget::updatePartial_data()
{
update_data();
}
void tst_QWidget::updatePartial()
{
QFETCH(int, rows);
QFETCH(int, columns);
QFETCH(int, numUpdates);
QFETCH(bool, opaque);
widget.fill(rows, columns);
widget.setOpaqueChildren(opaque);
QBENCHMARK {
for (int i = 0; i < widget.children.size(); ++i) {
QWidget *w = widget.children[i];
const int x = w->width() / 2;
const int y = w->height() / 2;
for (int j = 0; j < numUpdates; ++j) {
w->update(0, 0, x, y);
w->update(x, 0, x, y);
w->update(0, y, x, y);
w->update(x, y, x, y);
}
QApplication::processEvents();
}
}
}
void tst_QWidget::updateComplex_data()
{
update_data();
}
void tst_QWidget::updateComplex()
{
QFETCH(int, rows);
QFETCH(int, columns);
QFETCH(int, numUpdates);
QFETCH(bool, opaque);
widget.fill(rows, columns);
widget.setOpaqueChildren(opaque);
QBENCHMARK {
for (int i = 0; i < widget.children.size(); ++i) {
QWidget *w = widget.children[i];
const int x = w->width() / 2;
const int y = w->height() / 2;
QRegion r1(0, 0, x, y, QRegion::Ellipse);
QRegion r2(x, y, x, y, QRegion::Ellipse);
for (int j = 0; j < numUpdates; ++j) {
w->update(r1);
w->update(r2);
}
QApplication::processEvents();
}
}
}
QTEST_MAIN(tst_QWidget)
#include "tst_qwidget.moc"
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