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

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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