public virtual void DrawToGraphics(Graphics graphics)
{
Pen pen = Pens.Black;
switch (this.CurrentState)
{
case ItemState.Free:
pen = new Pen(ColorDefinition.GetColorWhenFree());
break;
case ItemState.Hover:
pen = new Pen(ColorDefinition.GetColorWhenHover());
break;
case ItemState.Selected:
pen = new Pen(ColorDefinition.GetColorWhenSelected());
break;
default:
break;
} // switch
setLinkKind(pen);
List<PointF> tempNails = new List<PointF>();
tempNails.Add(this.GetStartingPoint());
foreach (NailItem nail in this.nails)
tempNails.Add(nail.Center());
tempNails.Add(this.GetEndPoint());
float R = NailItem.R;
if (this.CurrentState == ItemState.Free)
R = NailItem.R + 5;
PointF[] points = new PointF[3];
PointF firstNail = PointF.Empty;
firstNail = tempNails[0];
for (int i = 0; i < tempNails.Count - 1; i++)
{
points[1] = tempNails[i + 1];
points[0] = GraphUltility.FindPointByDistance(points[1], firstNail, R);
graphics.DrawLine(pen, firstNail, points[0]);
if (i + 2 < tempNails.Count)
{
points[2] = GraphUltility.FindPointByDistance(points[1], tempNails[i + 2], R);
firstNail = points[2];
//Make the intersection curved
if (this.CurrentState == ItemState.Free)
graphics.DrawBezier(pen, points[0], points[1], points[1], points[2]);
}
}
DrawRouteWithBigArrow(graphics, pen, firstNail, tempNails[tempNails.Count - 1]);
}