wire.h

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#ifndef WIRE_H
#define WIRE_H
 
#include <QGraphicsItem>
#include <QPainter>
#include <math.h>
 
#include "symbol.h"
 
class Symbol;
 
class Wire : public QGraphicsItem {
public:
  Wire(Symbol* sourceNode, int port_num_source, Symbol* destNode,
       int port_num_dest);
 
  Wire(): arrowSize(10) {
    setAcceptedMouseButtons(Qt::NoButton);
  }
 
  ~Wire() {}
 
  void setSource(Symbol* destNode, int port){
    source          = destNode;
    port_num_source = port;
  }
 
  void setDestination(Symbol* destNode, int port){
    dest          = destNode;
    port_num_dest = port;
  }
 
  void setColor(QColor Color) {
    WireColor = Color;
  }
 
  void paintWire(){
    source->addWire(this);
    dest->addWire(this);
    adjust();
  }
 
  Symbol* sourceNode() const {
    return source;
  }
 
  Symbol* destNode() const{
    return dest;
  }
 
  void adjust();
 
  enum { Type = UserType + 2 };
  int type() const { return Type; }
 
protected:
  QRectF boundingRect() const;
 
  void paint(QPainter* painter, const QStyleOptionGraphicsItem* option,
             QWidget* widget);
 
private:
  Symbol *source, *dest;       
  QColor WireColor;            
  QPointF sourcePoint;         
  QPointF destPoint;           
  qreal arrowSize;             
  int port_num_source;         
  int port_num_dest;           
};
 
#endif