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    41 

    42 #ifndef TETRIXBOARD_H

    43 #define TETRIXBOARD_H

    44 

    45 #include <QBasicTimer>

    46 #include <QFrame>

    47 #include <QPointer>

    48 

    49 #include "tetrixpiece.h"

    50 

    51 QT_BEGIN_NAMESPACE

    52 class QLabel;

    53 QT_END_NAMESPACE

    54 

    55 //! [0]

    56 class TetrixBoard : public QFrame

    57 {

    58     Q_OBJECT

    59 

    60 public:

    61     TetrixBoard(QWidget *parent = 0);

    62 

    63     void setNextPieceLabel(QLabel *label);

    64     QSize sizeHint() const;

    65     QSize minimumSizeHint() const;

    66 

    67 public slots:

    68     void start();

    69     void pause();

    70 

    71 signals:

    72     void scoreChanged(int score);

    73     void levelChanged(int level);

    74     void linesRemovedChanged(int numLines);

    75 

    76 protected:

    77     void paintEvent(QPaintEvent *event);

    78     void keyPressEvent(QKeyEvent *event);

    79     void timerEvent(QTimerEvent *event);

    80 //! [0]

    81 

    82 //! [1]

    83 private:

    84     enum { BoardWidth = 10, BoardHeight = 22 };

    85 

    86     TetrixShape &shapeAt(int x, int y) { return board[(y * BoardWidth) + x]; }

    87     int timeoutTime() { return 1000 / (1 + level); }

    88     int squareWidth() { return contentsRect().width() / BoardWidth; }

    89     int squareHeight() { return contentsRect().height() / BoardHeight; }

    90     void clearBoard();

    91     void dropDown();

    92     void oneLineDown();

    93     void pieceDropped(int dropHeight);

    94     void removeFullLines();

    95     void newPiece();

    96     void showNextPiece();

    97     bool tryMove(const TetrixPiece &newPiece, int newX, int newY);

    98     void drawSquare(QPainter &painter, int x, int y, TetrixShape shape);

    99 

   100     QBasicTimer timer;

   101     QPointer<QLabel> nextPieceLabel;

   102     bool isStarted;

   103     bool isPaused;

   104     bool isWaitingAfterLine;

   105     TetrixPiece curPiece;

   106     TetrixPiece nextPiece;

   107     int curX;

   108     int curY;

   109     int numLinesRemoved;

   110     int numPiecesDropped;

   111     int score;

   112     int level;

   113     TetrixShape board[BoardWidth * BoardHeight];

   114 };

   115 //! [1]

   116 

   117 #endif