public void RemoveNode(DiagramNode diagramNode)
{
if (nodes.Contains(diagramNode))
{
nodes.Remove(diagramNode);
}
}
public void AddNode(DiagramNode diagramNode)
{
if (!nodes.Contains(diagramNode))
{
nodes.Add(diagramNode);
}
}
public DiagramNode GetNeighbourNode(DiagramNode diagramNode)
{
if (diagramNode == StartNode)
{
return(EndNode);
}
if (diagramNode == EndNode)
{
return(StartNode);
}
return(null);
}
public bool HandleMouseLeftButtonDown(Point point)
{
DiagramNode hoveredNode = GetHoveredNode(point, out dragOffsetVector);
if (hoveredNode != null)
{
currentMouseOperation = MouseOperation.MouseLeftButtonDownOnNode;
ActiveNode = hoveredNode;
ActiveNode.IsPositionControlled = true;
return(OnMouseLeftButtonDownOnNodeOverride(point));
}
currentMouseOperation = MouseOperation.MouseLeftButtonDownOnEmptySpace;
return(OnMouseLeftButtonDownOnEmptySpaceOverride(point));
}
public virtual double GetDistanceToNode(DiagramNode diagramNode)
{
return((Pos - diagramNode.Pos).Length);
//return Math.Min(
// Math.Min(
// Math.Min(
// diagramNode.GetShortestDistanceToPoint(TopLeft),
// diagramNode.GetShortestDistanceToPoint(TopRight)
// ),
// diagramNode.GetShortestDistanceToPoint(BottomRight)
// ),
// diagramNode.GetShortestDistanceToPoint(BottomLeft)
//);
}
public DiagramLink(DiagramNode startNode, DiagramNode endNode)
{
StartNode = startNode;
EndNode = endNode;
}
protected bool GetCurveOffsetForNode(DiagramNode dn, out double o0, out double o1)
{
double offset0;
double offset1;
double x0;
double x1;
double y0;
double y1;
o0 = double.NaN;
o1 = double.NaN;
bool r = false;
if (SolveCurveOffsetForY(dn.TopLeft.Y, out offset0, out offset1, out x0, out x1))
{
if (IsBetweenZeroAndOne(offset0) && IsBetween(x0, dn.TopLeft.X, dn.TopRight.X))
{
o0 = offset0;
r = true;
}
if (IsBetweenZeroAndOne(offset1) && IsBetween(x1, dn.TopLeft.X, dn.TopRight.X))
{
o1 = offset1;
r = true;
}
if (r)
{
return(true);
}
}
if (SolveCurveOffsetForY(dn.BottomLeft.Y, out offset0, out offset1, out x0, out x1))
{
if (IsBetweenZeroAndOne(offset0) && IsBetween(x0, dn.TopLeft.X, dn.TopRight.X))
{
o0 = offset0;
r = true;
}
if (IsBetweenZeroAndOne(offset1) && IsBetween(x1, dn.TopLeft.X, dn.TopRight.X))
{
o1 = offset1;
r = true;
}
if (r)
{
return(true);
}
}
if (SolveCurveOffsetForX(dn.TopLeft.X, out offset0, out offset1, out y0, out y1))
{
if (IsBetweenZeroAndOne(offset0) && IsBetween(y0, dn.TopLeft.Y, dn.BottomLeft.Y))
{
o0 = offset0;
r = true;
}
if (IsBetweenZeroAndOne(offset1) && IsBetween(y1, dn.TopLeft.Y, dn.BottomLeft.Y))
{
o1 = offset1;
r = true;
}
if (r)
{
return(true);
}
}
if (SolveCurveOffsetForX(dn.TopRight.X, out offset0, out offset1, out x0, out x1))
{
if (IsBetweenZeroAndOne(offset0) && IsBetween(y0, dn.TopLeft.Y, dn.BottomLeft.Y))
{
o0 = offset0;
r = true;
}
if (IsBetweenZeroAndOne(offset1) && IsBetween(y1, dn.TopLeft.Y, dn.BottomLeft.Y))
{
o1 = offset1;
r = true;
}
if (r)
{
return(true);
}
}
return(false);
}
private double GetDefaultDamping(DiagramNode diagramNode)
{
return(0.85);
}