public static void AddBottomRoundedRect(this CGContext c, RectangleF b, float r)
{
c.MoveTo (b.Left, b.Top + r);
c.AddLineToPoint (b.Left, b.Bottom - r);
c.AddArc (b.Left + r, b.Bottom - r, r, (float)(Math.PI), (float)(Math.PI / 2), true);
c.AddLineToPoint (b.Right - r, b.Bottom);
c.AddArc (b.Right - r, b.Bottom - r, r, (float)(-3 * Math.PI / 2), (float)(0), true);
c.AddLineToPoint (b.Right, b.Top);
c.AddLineToPoint (b.Left, b.Top);
}
public static void AddRoundedRect(this CGContext c, RectangleF b, float r)
{
var x = b.X;
var y = b.Y;
var w = b.Width;
var h = b.Height;
if (w < 0) {
x += w;
w = Math.Abs (w);
}
if (h < 0) {
y += h;
h = Math.Abs (h);
}
var ri = x + w;
var bo = y + h;
c.MoveTo (x, y + r);
c.AddLineToPoint (x, bo - r);
c.AddArc (x + r, bo - r, r, (float)(Math.PI), (float)(Math.PI / 2), true);
c.AddLineToPoint (ri - r, bo);
c.AddArc (ri - r, bo - r, r, (float)(-3 * Math.PI / 2), (float)(0), true);
c.AddLineToPoint (ri, y + r);
c.AddArc (ri - r, y + r, r, (float)(0), (float)(-Math.PI / 2), true);
c.AddLineToPoint (x + r, y);
c.AddArc (x + r, y + r, r, (float)(-Math.PI / 2), (float)(Math.PI), true);
}
public static void AddLine (this CGContext context, CGPoint point)
{
context.AddLineToPoint (point.X, point.Y);
}
