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#ifndef XLINKOBJ_H
#define XLINKOBJ_H
#include "linkablemapobj.h"
enum XLinkState {undefinedXLink,initXLink,activeXLink,deleteXLink};
/*! \brief xlinks are used to draw arbitrary connections between branches (BranchObj) in the map. */
/////////////////////////////////////////////////////////////////////////////
class XLinkObj:public MapObj {
public:
XLinkObj ();
XLinkObj (QGraphicsScene*);
~XLinkObj ();
virtual void init ();
virtual void copy (XLinkObj*);
void setBegin (BranchObj*);
BranchObj* getBegin();
void setEnd (BranchObj*);
void setEnd (QPointF);
BranchObj* getEnd();
void setColor(QColor);
QColor getColor();
void setWidth (int);
int getWidth ();
bool activate (); // Sets pointers in branchObjects
void deactivate(); // removes those pointers
bool isUsed(); // true, if at least on branch uses it
void updateXLink();
BranchObj* otherBranch (BranchObj*);
void positionBBox();
void calcBBoxSize();
void setVisibility (bool);
void setVisibility ();
QString saveToDir ();
private:
static int arrowSize;
QPen pen;
QColor color;
int width;
QGraphicsLineItem *line;
QGraphicsPolygonItem *poly;
BranchObj *beginBranch;
BranchObj *endBranch;
BranchObj *visBranch; // the "visible" part of a partially scrolled link
XLinkState xLinkState; // init during drawing or active
QPointF beginPos;
QPointF endPos;
};
#endif
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