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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 <QtGui>
+
+#ifdef Q_WS_WIN
+#define CALLGRIND_START_INSTRUMENTATION {}
+#define CALLGRIND_STOP_INSTRUMENTATION {}
+#else
+#include "valgrind/callgrind.h"
+#endif
+
+#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"