/****************************************************************************+
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**+
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the demonstration applications of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef MAIN_WINDOW_H+
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#define MAIN_WINDOW_H+
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+
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#include <QtGui>+
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#include <QPixmap>+
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+
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class DemoTextItem;+
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class ImageItem;+
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+
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class MainWindow : public QGraphicsView+
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{+
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    Q_OBJECT+
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+
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public:+
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    MainWindow(QWidget *parent = 0);+
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    ~MainWindow();+
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    void enableMask(bool enable);+
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    void toggleFullscreen();+
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    int performBenchmark();+
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    void switchTimerOnOff(bool on);+
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    void start();+
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+
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    QGraphicsScene *scene;+
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    bool loop;+
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+
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    // FPS stuff:+
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    QList<QTime> frameTimeList;+
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    QList<float> fpsHistory;+
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    float currentFps;+
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    float fpsMedian;+
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    DemoTextItem *fpsLabel;+
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+
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protected:+
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    // Overidden methods:+
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    void showEvent(QShowEvent *event);+
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    void keyPressEvent(QKeyEvent *event);+
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    void resizeEvent(QResizeEvent *event);+
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    void drawBackground(QPainter *painter, const QRectF &rect);+
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    void drawItems(QPainter *painter, int numItems, QGraphicsItem ** items, const QStyleOptionGraphicsItem* options);+
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    void focusInEvent(QFocusEvent *event);+
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    void focusOutEvent(QFocusEvent *event);+
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+
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private slots:+
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    void tick();+
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+
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private:+
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    void setupWidget();+
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    void setupSceneItems();+
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    void drawBackgroundToPixmap();+
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    void setupScene();+
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    bool measureFps();+
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    void forceFpsMedianCalculation();+
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    void checkAdapt();+
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    void setRenderingSystem();+
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+
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    QTimer updateTimer;+
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    QTime demoStartTime;+
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    QTime fpsTime;+
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    QPixmap background;+
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    ImageItem *companyLogo;+
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    ImageItem *qtLogo;+
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    bool doneAdapt;+
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    bool useTimer;+
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    DemoTextItem *pausedLabel;+
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};+
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+
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#endif // MAIN_WINDOW_H+
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+
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