/// <summary>
/// Calculates this controls shape and size that will be used
/// when it is drawn
/// </summary>
/// <param name="container">The allowed space for the control</param>
public virtual void CalculatePaths(RectangleF container)
{
DisposePaths();
m_path = new GraphicsPath();
RectangleF rect = container;
bool bHorizontal = (m_orientation == SegmentOrientation.Horizontal);
if (bHorizontal)
{
rect.Inflate(-Padding, 0);
}
else
{
rect.Inflate(0, -Padding);
}
PointF topLeft = new PointF(rect.Left, rect.Top);
PointF topRight = new PointF(rect.Right, rect.Top);
PointF bottomLeft = new PointF(rect.Left, rect.Bottom);
PointF bottomRight = new PointF(rect.Right, rect.Bottom);
float xOffset = bHorizontal ? TipLength : 0;
float yOffset = bHorizontal ? 0 : TipLength;
PointF topLeftOffset = new PointF(topLeft.X + xOffset, topLeft.Y + yOffset);
PointF topRightOffset = new PointF(topRight.X - xOffset, topRight.Y + yOffset);
PointF bottomLeftOffset = new PointF(bottomLeft.X + xOffset, bottomLeft.Y - yOffset);
PointF bottomRightOffset = new PointF(bottomRight.X - xOffset, bottomRight.Y - yOffset);
PointF topCenter = new PointF(rect.Left + (rect.Width / 2f), rect.Y + (yOffset / 2f));
PointF leftCenter = new PointF(rect.Left + (xOffset / 2f), rect.Y + (rect.Height / 2f));
PointF bottomCenter = new PointF(topCenter.X, rect.Bottom - (yOffset / 2f));
PointF rightCenter = new PointF(rect.Right - (xOffset / 2f), leftCenter.Y);
List <PointF> points = new List <PointF>();
points.Add(leftCenter);
if (CustomExtensions.IsFlagSet(Corners, SegmentCorners.TopLeft))
{
points.Add(topLeft);
}
else
{
points.Add(topLeftOffset);
points.Add(topCenter);
}
if (CustomExtensions.IsFlagSet(Corners, SegmentCorners.TopRight))
{
points.Add(topRight);
}
else
{
points.Add(topRightOffset);
}
if (CustomExtensions.IsFlagSet(Corners, SegmentCorners.BottomRight))
{
points.Add(bottomRight);
}
else
{
points.Add(rightCenter);
points.Add(bottomRightOffset);
}
if (CustomExtensions.IsFlagSet(Corners, SegmentCorners.BottomLeft))
{
points.Add(bottomLeft);
}
else
{
points.Add(bottomCenter);
points.Add(bottomLeftOffset);
}
if (CustomExtensions.IsFlagSet(Corners, SegmentCorners.TopLeft))
{
points.Add(topLeft);
}
m_path.AddLines(points.ToArray());
m_path.CloseFigure();
//these areas need to be redrawn now
m_redrawRegion.Union(m_path);
}
