gameboardscene.h

Go to the documentation of this file.

/***************************************************************************
 *   Copyright (C) 2006 by Matthew Williams    <matt@milliams.com>         *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 ***************************************************************************/

#ifndef GAMEBOARDSCENE_H
#define GAMEBOARDSCENE_H

#include <QGraphicsScene>

class QGraphicsEllipseItem;
class msg;

class GameBoardScene : public QGraphicsScene
{
    Q_OBJECT
    
    public:
        GameBoardScene(int newWidth, int newHeight, QObject *parent = 0);
        ~GameBoardScene();
        const QSize minimumSizeHint() const;

        void acknowledgeMove(int x1, int y1, int x2, int y2);
        
    public slots:
        void drawLine(int index, const QColor &colour);
        void highlightLine(int index);
        void drawSquare(int index, const QColor &colour);
        void enableEvents() {acceptEvents = true;}
        void disableEvents() {acceptEvents = false;}
        
    protected:
        QList<QGraphicsEllipseItem*> getTwoNearestPoints(const QPointF &pos) const;
        
        bool isLineAlready(const QList<QGraphicsEllipseItem*> &pointPair) const;
        void addLineToIndex(const QList<QGraphicsEllipseItem*> &pointPair);
        
        //conversion functions
        int indexFromPointPair(const QList<QGraphicsEllipseItem*> &pointPair) const;    //given a pointPair, returns the index of the line between them. If not a valid line, returns -1
        QLineF lineFromIndex(int index) const;  //all external calls will need to be passed through this to convert to local coords
        
        QGraphicsLineItem* indicatorLine;
        
        QList<bool> lineList;   //Just kept in sync with the KSquaresGame one
        
        int QGraphicsEllipseItemType;
        int width;
        int height;
        int spacing;
        bool acceptEvents;
        
        //event handlers
        //void mousePressEvent (QGraphicsSceneMouseEvent* mouseEvent);
        void mouseReleaseEvent (QGraphicsSceneMouseEvent* mouseEvent);
        void mouseMoveEvent (QGraphicsSceneMouseEvent* mouseEvent);
        
    signals:
        void lineDrawn(int);
};

#endif // GAMEBOARDSCENE_H