//utility for drawing triangle shape
public void DrawTriangleInContext(CGContext ctx, CGRect rect, float BorderWidth, bool isLeft)
{
UIColor color = UIColor.FromRGBA(95.0f / 255.0f, 104.0f / 255.0f, 114.0f / 255.0f, 1.0f);
ctx.SetLineWidth(BorderWidth);
ctx.SetStrokeColor(color.CGColor);
ctx.SetFillColor(color.CGColor);
ctx.SaveState();
if (isLeft)
{
ctx.MoveTo(rect.GetMinX(), rect.GetMinY());
}
else
{
ctx.MoveTo(rect.GetMaxX(), rect.GetMinY());
}
ctx.AddLineToPoint(rect.GetMinX(), rect.GetMaxY());
ctx.AddLineToPoint(rect.GetMaxX(), rect.GetMaxY());
ctx.ClosePath();
ctx.DrawPath(CGPathDrawingMode.FillStroke);
ctx.RestoreState();
}
//utility for drawing rectangle shape
public void DrawRectShapeInContext(CGContext ctx, CGRect rect)
{
ctx.SetFillColor(UIColor.FromRGBA(95.0f / 255.0f, 104.0f / 255.0f, 114.0f / 255.0f, 1.0f).CGColor);
ctx.SetStrokeColor(UIColor.FromRGBA(95.0f / 255.0f, 104.0f / 255.0f, 114.0f / 255.0f, 1.0f).CGColor);
ctx.StrokeRect(rect);
ctx.FillRect(rect);
// Add rounded rect over plain rect with 4 pixel below the origin y, so that it will visible only the bottom rounded corners
CGRect cornerRect = new CGRect(rect.X, rect.Y + 4, rect.Width, rect.Height);
nfloat radius = 4;
nfloat minx = cornerRect.GetMinX(), midx = cornerRect.GetMidX(), maxx = cornerRect.GetMaxX();
nfloat miny = cornerRect.GetMinY(), midy = cornerRect.GetMidY(), maxy = cornerRect.GetMaxY();
ctx.SaveState();
ctx.MoveTo(minx, miny);
ctx.AddArcToPoint(minx, miny, midx, miny, radius);
ctx.AddArcToPoint(maxx, miny, maxx, midy, radius);
ctx.AddArcToPoint(maxx, maxy, midx, maxy, radius);
ctx.AddArcToPoint(minx, maxy, minx, midy, radius);
ctx.ClosePath();
ctx.DrawPath(CGPathDrawingMode.FillStroke);
ctx.RestoreState();
}