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# tetrixboard.h Example File
script/tetrix/tetrixboard.h

     /****************************************************************************
     **
     ** Copyright (C) 2007-2007 Trolltech ASA. All rights reserved.
     **
     ** This file is part of the example classes of the Qt Toolkit.
     **
     ** This file may be used under the terms of the GNU General Public
     ** License version 2.0 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 GNU
     ** General Public Licensing requirements will be met:
     ** http://www.trolltech.com/products/qt/opensource.html
     **
     ** If you are unsure which license is appropriate for your use, please
     ** review the following information:
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     **
     ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
     ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
     **
     ****************************************************************************/

     #ifndef TETRIXBOARD_H
     #define TETRIXBOARD_H

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

     class QLabel;

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

     public:
         TetrixBoard(QWidget *parent = 0);

         void setNextPieceLabel(QWidget *label);
         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);

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

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

         QTimer *timer;
         QPointer<QLabel> nextPieceLabel;
     };

     #endif