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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 examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
**     the names of its contributors may be used to endorse or promote
**     products derived from this software without specific prior written
**     permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef TETRIXBOARD_H
#define TETRIXBOARD_H

#include <QTimer>
#include <QFrame>
#include <QPointer>
#include <QLabel>

class TetrixBoard : public QFrame
{
    Q_OBJECT
    Q_PROPERTY(QObject* timer READ getTimer)
    Q_PROPERTY(QWidget* nextPieceLabel READ nextPieceLabel WRITE setNextPieceLabel)

public:
    TetrixBoard(QWidget *parent = 0);

    void setNextPieceLabel(QWidget *label);
    QLabel *nextPieceLabel() const;
    void setBoardWidth(int width);
    void setBoardHeight(int height);
    QSize minimumSizeHint() const;

    QObject *getTimer();

signals:
    void scoreChanged(int score);
    void levelChanged(int level);
    void linesRemovedChanged(int numLines);

#if !defined(Q_MOC_RUN)
private: // can only be emitted by TetrixBoard
#endif
    void keyPressed(int key);
    void paintRequested(QPainter *painter);
    void paintNextPieceRequested(QPainter *painter);

protected:
    void paintEvent(QPaintEvent *event);
    void keyPressEvent(QKeyEvent *event);

protected slots:
    void showNextPiece(int width, int height);
    void drawPauseScreen(QPainter *painter);
    void drawSquare(QPainter *painter, int x, int y, int shape);
    void update();

private:
    enum { BoardWidth = 10, BoardHeight = 22 };

    int squareWidth() { return contentsRect().width() / BoardWidth; }
    int squareHeight() { return contentsRect().height() / BoardHeight; }

    QTimer *timer;
    QPointer<QLabel> nextPieceLbl;
    QImage image;
};

#endif