public static GraphicsPath CreateBorderPath(Rectangle bounds, BorderPathType type, double topLeftRadius, double topRightRadius, double bottomRightRadius, double bottomLeftRadius)
{
int topLeftDiameter = (int)(topLeftRadius * 2);
int topRightDiameter = (int)(topRightRadius * 2);
int bottomLeftDiameter = (int)(bottomLeftRadius * 2);
int bottomRightDiameter = (int)(bottomRightRadius * 2);
GraphicsPath path = new GraphicsPath();
Size topLeftSize = new Size(topLeftDiameter, topLeftDiameter);
Size topRightSize = new Size(topRightDiameter, topRightDiameter);
Size bottomLeftSize = new Size(bottomLeftDiameter, bottomLeftDiameter);
Size bottomRightSize = new Size(bottomRightDiameter, bottomRightDiameter);
Rectangle topLeftArc = new Rectangle(bounds.Location, topLeftSize);
Rectangle topRightArc = new Rectangle(new Point(bounds.Right - topRightDiameter, bounds.Location.Y), topRightSize);
Rectangle bottomLeftArc = new Rectangle(new Point(bounds.Left, bounds.Bottom - bottomLeftDiameter), bottomLeftSize);
Rectangle bottomRightArc = new Rectangle(new Point(bounds.Right - bottomRightDiameter, bounds.Bottom - bottomRightDiameter), bottomRightSize);
int overlap = 10;
if (type == BorderPathType.Top || type == BorderPathType.Full)
{
if (topLeftDiameter > 0)
{
path.AddArc(topLeftArc, 225 - overlap, 45 + overlap);
}
else
{
path.AddPoint(bounds.Location);
}
if (topRightDiameter > 0)
{
path.AddArc(topRightArc, 270, 45 + overlap);
}
else
{
path.AddPoint(new Point(bounds.Right, bounds.Top));
}
}
if (type == BorderPathType.Right || type == BorderPathType.Full)
{
if (topRightDiameter > 0)
{
path.AddArc(topRightArc, 315 - overlap, 45 + overlap);
}
else if (type != BorderPathType.Full)
{
path.AddPoint(new Point(bounds.Right, bounds.Top));
}
if (bottomRightDiameter > 0)
{
path.AddArc(bottomRightArc, 0, 45 + overlap);
}
else
{
path.AddPoint(new Point(bounds.Right, bounds.Bottom));
}
}
if (type == BorderPathType.Bottom || type == BorderPathType.Full)
{
if (bottomRightDiameter > 0)
{
path.AddArc(bottomRightArc, 45 - overlap, 45 + overlap);
}
else if (type != BorderPathType.Full)
{
path.AddPoint(new Point(bounds.Right, bounds.Bottom));
}
if (bottomLeftDiameter > 0)
{
path.AddArc(bottomLeftArc, 90, 45 + overlap);
}
else
{
path.AddPoint(new Point(bounds.Left, bounds.Bottom));
}
}
if (type == BorderPathType.Left || type == BorderPathType.Full)
{
if (bottomLeftDiameter > 0)
{
path.AddArc(bottomLeftArc, 135 - overlap, 45 + overlap);
}
else if (type != BorderPathType.Full)
{
path.AddPoint(new Point(bounds.Left, bounds.Bottom));
}
if (topLeftDiameter > 0)
{
path.AddArc(topLeftArc, 180, 45 + overlap);
}
else if (type != BorderPathType.Full)
{
path.AddPoint(bounds.Location);
}
}
if (type == BorderPathType.Full)
{
path.CloseFigure();
}
return(path);
}
