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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef MAIN_WINDOW_H
+#define MAIN_WINDOW_H
+
+#include <QtGui>
+#include <QPixmap>
+
+class DemoTextItem;
+class ImageItem;
+
+class MainWindow : public QGraphicsView
+{
+ Q_OBJECT
+
+public:
+ MainWindow(QWidget *parent = 0);
+ ~MainWindow();
+ void enableMask(bool enable);
+ void toggleFullscreen();
+ int performBenchmark();
+ void switchTimerOnOff(bool on);
+ void start();
+
+ QGraphicsScene *scene;
+ bool loop;
+
+ // FPS stuff:
+ QList<QTime> frameTimeList;
+ QList<float> fpsHistory;
+ float currentFps;
+ float fpsMedian;
+ DemoTextItem *fpsLabel;
+
+protected:
+ // Overidden methods:
+ void showEvent(QShowEvent *event);
+ void keyPressEvent(QKeyEvent *event);
+ void resizeEvent(QResizeEvent *event);
+ void drawBackground(QPainter *painter, const QRectF &rect);
+ void drawItems(QPainter *painter, int numItems, QGraphicsItem ** items, const QStyleOptionGraphicsItem* options);
+ void focusInEvent(QFocusEvent *event);
+ void focusOutEvent(QFocusEvent *event);
+
+private slots:
+ void tick();
+
+private:
+ void setupWidget();
+ void setupSceneItems();
+ void drawBackgroundToPixmap();
+ void setupScene();
+ bool measureFps();
+ void forceFpsMedianCalculation();
+ void checkAdapt();
+ void setRenderingSystem();
+
+ QTimer updateTimer;
+ QTime demoStartTime;
+ QTime fpsTime;
+ QPixmap background;
+ ImageItem *trolltechLogo;
+ ImageItem *qtLogo;
+ bool doneAdapt;
+ bool useTimer;
+ DemoTextItem *pausedLabel;
+};
+
+#endif // MAIN_WINDOW_H
+