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

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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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** Contact: Nokia Corporation (qt-info@nokia.com)

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** This file is part of the demonstration applications of the Qt Toolkit.

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** No Commercial Usage

** This file contains pre-release code and may not be distributed.

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** contained in the Technology Preview License Agreement accompanying

** this package.

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** GNU Lesser General Public License Usage

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** 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

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** If you have questions regarding the use of this file, please contact

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

#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 *companyLogo;

    ImageItem *qtLogo;

    bool doneAdapt;

    bool useTimer;

    DemoTextItem *pausedLabel;

};

#endif // MAIN_WINDOW_H