protected override void OnPaint(PaintEventArgs e)
{
GraphicsState st = e.Graphics.Save();
ActiveDrawing ei = PortOwner as ActiveDrawing;
Point p0 = ei.Center;
Point p1 = this.Center;
double a;
if (p0.Y == p1.Y)
{
if (p1.X > p0.X)
{
a = -Math.PI / 2.0;
}
else
{
a = Math.PI / 2.0;
}
}
else
{
a = -Math.Atan2((double)(p1.X - p0.X), ((double)(p1.Y - p0.Y)));
}
//move to the center of this port icon. (0,0) co-ordinates is at the left-top of the port icon.
e.Graphics.TranslateTransform(this.Size.Width / 2, this.Size.Height / 2, System.Drawing.Drawing2D.MatrixOrder.Prepend);
//rotate
e.Graphics.RotateTransform((float)(a * 180.0 / Math.PI));
//move to the left-top corner
e.Graphics.TranslateTransform(-this.Size.Width / 2, -this.Size.Height / 2, System.Drawing.Drawing2D.MatrixOrder.Prepend);
//do the drawing
VplDrawing.DrawOutArrow(e.Graphics, _drawBrush, this.Size, enumPositionType.Bottom);
//restore the transformations
e.Graphics.Restore(st);
}
protected override void OnPaint(PaintEventArgs e)
{
GraphicsState st = e.Graphics.Save();
ActiveDrawing ei = PortOwner as ActiveDrawing;
Point p0 = ei.Center;
Point p1 = this.Center;
double a;
if (p0.Y == p1.Y)
{
if (p1.X > p0.X)
{
a = -Math.PI / 2.0;
}
else
{
a = Math.PI / 2.0;
}
}
else
{
a = -Math.Atan2((double)(p1.X - p0.X), ((double)(p1.Y - p0.Y)));
}
e.Graphics.TranslateTransform(this.Size.Width / 2, this.Size.Height / 2, System.Drawing.Drawing2D.MatrixOrder.Prepend);
e.Graphics.RotateTransform((float)(a * 180.0 / Math.PI));
e.Graphics.TranslateTransform(-this.Size.Width / 2, -this.Size.Height / 2, System.Drawing.Drawing2D.MatrixOrder.Prepend);
VplDrawing.DrawInArrow(e.Graphics, _drawBrush, this.Size, enumPositionType.Bottom);
e.Graphics.Restore(st);
}
protected override void OnPaint(PaintEventArgs e)
{
VplDrawing.DrawInArrow(e.Graphics, _drawBrush, this.Size, this.PositionType);
}
