public void AddChild (CGNode n, CGArrow a)
{
childs.addElement (n);
arrows.addElement (a);
Rectangle pos = Bbox();
a.MoveTailTo (pos.x + pos.width - 1, pos.y + pos.height/2);
}
public void SetParent (CGNode n, CGArrow a)
{
parent = n;
arrow = a;
if (arrow != null) {
Rectangle pos = Bbox();
arrow.MoveHeadTo (pos.x, pos.y + pos.height/2);
}
}
public void Move (int xinc, int yinc)
{
AutoUpdateOff ();
super.Move (xinc, yinc);
for (int i = arrows.size()-1; i >= 0; --i) {
((CGArrow)arrows.elementAt(i)).MoveTail (xinc, yinc);
}
if (arrow != null)
arrow.MoveHead (xinc, yinc);
AutoUpdateOn ();
}
private void Drag (MouseEvent ev)
{
switch (state) {
case stateDrag:
curnode.Move (ev.getX() - dragx, ev.getY() - dragy);
dragx = ev.getX();
dragy = ev.getY();
break;
case stateCreate:
curarrow.MoveHeadTo (ev.getX(), ev.getY());
break;
}
}