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

 /****************************************************************************
 **
 ** Copyright (C) 2007-2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
 **
 ** This file is part of the documentation of the Qt Toolkit.
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 ** Licensees holding a valid Qt License Agreement may use this file in
 ** accordance with the rights, responsibilities and obligations
 ** contained therein.  Please consult your licensing agreement or
 ** contact [email protected] if any conditions of this licensing
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 ** http://trolltech.com/products/appdev/licensing.
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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.
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 #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