KDE 4.0 API Reference ksquares
gameboardscene.h
Go to the documentation of this file.00001 /*************************************************************************** 00002 * Copyright (C) 2006 by Matthew Williams <matt@milliams.com> * 00003 * * 00004 * This program is free software; you can redistribute it and/or modify * 00005 * it under the terms of the GNU General Public License as published by * 00006 * the Free Software Foundation; either version 2 of the License, or * 00007 * (at your option) any later version. * 00008 ***************************************************************************/ 00009 00010 #ifndef GAMEBOARDSCENE_H 00011 #define GAMEBOARDSCENE_H 00012 00013 #include <QGraphicsScene> 00014 00015 class QGraphicsEllipseItem; 00016 00026 class GameBoardScene : public QGraphicsScene 00027 { 00028 Q_OBJECT 00029 00030 public: 00037 GameBoardScene(int newWidth, int newHeight, QObject *parent = 0); 00039 ~GameBoardScene(); 00044 const QSize minimumSizeHint() const; 00045 00046 public slots: 00052 void drawLine(int index, const QColor &colour); 00058 void drawSquare(int index, const QColor &colour); 00060 void enableEvents() {acceptEvents = true;} 00062 void disableEvents() {acceptEvents = false;} 00063 00064 protected: 00070 QList<QGraphicsEllipseItem*> getTwoNearestPoints(const QPointF &pos) const; 00071 00077 bool isLineAlready(const QList<QGraphicsEllipseItem*> &pointPair) const; 00082 void addLineToIndex(const QList<QGraphicsEllipseItem*> &pointPair); 00083 00084 //conversion functions 00090 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 00096 QGraphicsLineItem* lineFromIndex(int index) const; //all external calls will need to be passed through this to convert to local coords 00097 00099 QGraphicsLineItem* indicatorLine; 00100 00102 QList<bool> lineList; //Just kept in sync with the KSquaresGame one 00103 00105 int QGraphicsEllipseItemType; 00107 int width; 00109 int height; 00111 int spacing; 00113 bool acceptEvents; 00114 00115 //event handlers 00116 //void mousePressEvent (QGraphicsSceneMouseEvent* mouseEvent); 00117 void mouseReleaseEvent (QGraphicsSceneMouseEvent* mouseEvent); 00118 void mouseMoveEvent (QGraphicsSceneMouseEvent* mouseEvent); 00119 00120 signals: 00122 void lineDrawn(int); 00123 }; 00124 00125 #endif // GAMEBOARDSCENE_H
