Qt 5.6 | Qt Widgets | Tetrix Example | tetrixboard.h Example File

Qt 5.6.2 Reference Documentation

# tetrixboard.h Example File

widgets/tetrix/tetrixboard.h

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      #ifndef TETRIXBOARD_H
      #define TETRIXBOARD_H

      #include <QBasicTimer>
      #include <QFrame>
      #include <QPointer>

      #include "tetrixpiece.h"

      class QLabel;

      class TetrixBoard : public QFrame
      {
          Q_OBJECT

      public:
          TetrixBoard(QWidget *parent = 0);

          void setNextPieceLabel(QLabel *label);
          QSize sizeHint() const Q_DECL_OVERRIDE;
          QSize minimumSizeHint() const Q_DECL_OVERRIDE;

      public slots:
          void start();
          void pause();

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

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

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

          TetrixShape &shapeAt(int x, int y) { return board[(y * BoardWidth) + x]; }
          int timeoutTime() { return 1000 / (1 + level); }
          int squareWidth() { return contentsRect().width() / BoardWidth; }
          int squareHeight() { return contentsRect().height() / BoardHeight; }
          void clearBoard();
          void dropDown();
          void oneLineDown();
          void pieceDropped(int dropHeight);
          void removeFullLines();
          void newPiece();
          void showNextPiece();
          bool tryMove(const TetrixPiece &newPiece, int newX, int newY);
          void drawSquare(QPainter &painter, int x, int y, TetrixShape shape);

          QBasicTimer timer;
          QPointer<QLabel> nextPieceLabel;
          bool isStarted;
          bool isPaused;
          bool isWaitingAfterLine;
          TetrixPiece curPiece;
          TetrixPiece nextPiece;
          int curX;
          int curY;
          int numLinesRemoved;
          int numPiecesDropped;
          int score;
          int level;
          TetrixShape board[BoardWidth * BoardHeight];
      };

      #endif