/****************************************************************************

**

** 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 <QtGui>

#include "valgrind/callgrind.h"

#ifdef Q_WS_X11

extern void qt_x11_wait_for_window_manager(QWidget *);

#endif

class View : public QGraphicsView

{

    Q_OBJECT

public:

    View(QGraphicsScene *scene, QGraphicsItem *item)

        : QGraphicsView(scene), _item(item)

    {

    }

protected:

    void paintEvent(QPaintEvent *event)

    {

        static int n = 0;

        if (n)

            CALLGRIND_START_INSTRUMENTATION

        QGraphicsView::paintEvent(event);

        _item->moveBy(1, 1);

        if (n)

            CALLGRIND_STOP_INSTRUMENTATION

        if (++n == 200)

            qApp->quit();

    }

private:

    QGraphicsItem *_item;

};

int main(int argc, char *argv[])

{

    QApplication app(argc, argv);

    if (argc < 2) {

        qDebug("usage: ./%s <numItems>", argv[0]);

        return 1;

    }

    QGraphicsScene scene(-150, -150, 300, 300);

    scene.setItemIndexMethod(QGraphicsScene::NoIndex);

    QGraphicsRectItem *item = scene.addRect(-50, -50, 100, 100, QPen(Qt::NoPen), QBrush(Qt::blue));

    item->setFlag(QGraphicsItem::ItemIsMovable);

    for (int i = 0; i < atoi(argv[1]); ++i) {

        QGraphicsRectItem *child = scene.addRect(-5, -5, 10, 10, QPen(Qt::NoPen), QBrush(Qt::blue));

        child->setPos(-50 + qrand() % 100, -50 + qrand() % 100);

        child->setParentItem(item);

    }

    View view(&scene, item);

    view.resize(300, 300);

    view.show();

#ifdef Q_WS_X11

    qt_x11_wait_for_window_manager(&view);

#endif

    return app.exec();

}

#include "main.moc"