RetroShare/retroshare-gui/src/gui/elastic/graphwidget.h

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#ifndef GRAPHWIDGET_H
#define GRAPHWIDGET_H

#include <QtGui/QGraphicsView>
#include <stdint.h>

class Node;

class GraphWidget : public QGraphicsView
{
    Q_OBJECT

public:
    GraphWidget(QWidget * = NULL);

	 typedef int NodeId ;
	 typedef int EdgeId ;

	 typedef enum  {
		 	ELASTIC_NODE_TYPE_OWN				= 0x0000,
			ELASTIC_NODE_TYPE_FRIEND 			= 0x0001,
			ELASTIC_NODE_TYPE_F_OF_F 			= 0x0002,
			ELASTIC_NODE_TYPE_UNKNOWN			= 0x0003
	 } NodeType ;

	 typedef enum {
			ELASTIC_NODE_AUTH_FULL			= 0x0000,
			ELASTIC_NODE_AUTH_MARGINAL		= 0x0001,
			ELASTIC_NODE_AUTH_UNKNOWN		= 0x0002
	 } AuthType ;

	 NodeId addNode(const std::string& NodeShortText,const std::string& nodeCompleteText,NodeType type,AuthType auth) ;
	 EdgeId addEdge(NodeId n1,NodeId n2) ;

	 void clearGraph() ;
    virtual void itemMoved();

	 void setEdgeLength(uint32_t l) ;
	 uint32_t edgeLength() const { return _edge_length ; }

protected:
    void keyPressEvent(QKeyEvent *event);
    void timerEvent(QTimerEvent *event);
    void wheelEvent(QWheelEvent *event);
    void drawBackground(QPainter *painter, const QRectF &rect);

    void scaleView(qreal scaleFactor);

private:
    int timerId;
    //Node *centerNode;
	 bool mDeterminedBB ;

	 std::vector<Node *> _nodes ;
	 std::vector<Node *> _edges ;

	 uint32_t _edge_length ;
};

#endif