public static void DrawArrowEnd(Graphics g, PointF a1, PointF a2, Color clr, float arrowSize)
{
Brush b = GVGraphics.GetBrush(clr);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
double angle = -Math.Atan2(a2.Y - a1.Y, a2.X - a1.X);
PointF p1 = new PointF(a2.X - (float)(Math.Cos(angle - Math.PI / 8.0) * arrowSize), a2.Y + (float)(Math.Sin(angle - Math.PI / 8.0) * arrowSize));
PointF p2 = a2;
PointF p3 = new PointF(a2.X - (float)(Math.Cos(angle + Math.PI / 8.0) * arrowSize), a2.Y + (float)(Math.Sin(angle + Math.PI / 8.0) * arrowSize));
g.FillPolygon(b, new PointF[] { p1, p2, p3 });
}
public virtual Brush GetBackgroundBrush()
{
if (StatusHighlighted)
{
switch (ClickType)
{
case GVObjectTrackerType.Click:
return(GVGraphics.GetBrush(Color.CadetBlue));
case GVObjectTrackerType.DragDrop:
return(GVGraphics.GetBrush(Color.MediumSeaGreen));
case GVObjectTrackerType.Switch:
return(GVGraphics.GetBrush(Color.MediumVioletRed));
default:
return(GVGraphics.GetBrush(Color.White));
}
}
else
{
switch (ClickType)
{
case GVObjectTrackerType.Click:
return(GVGraphics.GetBrush(Color.Teal));
case GVObjectTrackerType.DragDrop:
return(GVGraphics.GetBrush(Color.SeaGreen));
case GVObjectTrackerType.Switch:
return(GVGraphics.GetBrush(Color.Purple));
default:
return(GVGraphics.GetBrush(Color.Gray));
}
}
}
