public static Stroke PositionsToCircle(Point startPoint, Point endPoint)
{
StylusPointCollection stp = new StylusPointCollection();
stp.Add(new StylusPoint(startPoint.X, startPoint.Y));
stp.Add(new StylusPoint(endPoint.X, endPoint.Y));
return(InkTransformerHelper.StrokeToCircle(new Stroke(stp)));
}
private void UpdateStart()
{
Rect entityBoundingBox = this.SourceEntity.GetBounds(2);
StylusPoint finalPoint = new StylusPoint();
Point SeCenter = new Point(
entityBoundingBox.Left + entityBoundingBox.Width * 0.5,
entityBoundingBox.Top + entityBoundingBox.Height * 0.5)
;
Point TeCenter = new Point(this.Stroke.StylusPoints[this.Stroke.StylusPoints.Count - 1].X, this.Stroke.StylusPoints[this.Stroke.StylusPoints.Count - 1].Y);
if (this.TargetEntity != null)
{
Rect targetEntityBoundingBox = this.TargetEntity.GetBounds(2);
TeCenter = new Point(
targetEntityBoundingBox.Left + targetEntityBoundingBox.Width * 0.5,
targetEntityBoundingBox.Top + targetEntityBoundingBox.Height * 0.5)
;
}
int LR = 0;
if ((SeCenter.X - TeCenter.X) < -(entityBoundingBox.Width * 0.8))
{
LR = 1;
}
else if ((SeCenter.X - TeCenter.X) > (entityBoundingBox.Width * 0.8))
{
LR = -1;
}
else
{
LR = 0;
}
int UD = 0;
if ((SeCenter.Y - TeCenter.Y) < -(entityBoundingBox.Width * 0.8))
{
UD = -1;
}
else if ((SeCenter.Y - TeCenter.Y) > (entityBoundingBox.Width * 0.8))
{
UD = 1;
}
else
{
UD = 0;
}
if (LR == -1)
{
finalPoint.X = entityBoundingBox.Left - 2;
}
else if (LR == 1)
{
finalPoint.X = entityBoundingBox.Right + 2;
}
else if (LR == 0)
{
finalPoint.X = SeCenter.X;
}
if (UD == -1)
{
finalPoint.Y = entityBoundingBox.Bottom + 2;
}
else if (UD == 1)
{
finalPoint.Y = entityBoundingBox.Top - 2;
}
else if (UD == 0)
{
finalPoint.Y = SeCenter.Y;
}
this.Stroke.StylusPoints[0] = finalPoint;
if (this.ArrowMode == StrokeArrowMode.Double)
{
this.Stroke.StylusPoints.RemoveAt(this.Stroke.StylusPoints.Count - 2);
this.Stroke.StylusPoints.RemoveAt(this.Stroke.StylusPoints.Count - 2);
this.Stroke.StylusPoints.RemoveAt(this.Stroke.StylusPoints.Count - 2);
this.Stroke.StylusPoints.RemoveAt(this.Stroke.StylusPoints.Count - 2);
for (int i = 0; i < 4; i++)
{
this.Stroke.StylusPoints.RemoveAt(1);
}
this.Stroke = InkTransformerHelper.LineToDoubleArrow(this.Stroke);
}
this.Stroke.DrawingAttributes.Height = 2;
this.Stroke.DrawingAttributes.Width = 2;
this.Stroke.DrawingAttributes.IgnorePressure = true;
}