private void DrawBubbleLeftShape(CGRect frame, CGPath path)
{
path.AddArcToPoint(
frame.X,
frame.Y,
frame.X + frame.Width,
frame.Y,
this.CornerRadius);
path.AddArcToPoint(
frame.X + frame.Width,
frame.Y,
frame.X + frame.Width,
frame.Y + frame.Height,
this.CornerRadius);
path.AddArcToPoint(
frame.X + frame.Width,
frame.Y + frame.Height,
frame.X,
frame.Y + frame.Height,
this.CornerRadius);
path.AddArcToPoint(
frame.X,
frame.Y + frame.Height,
frame.X,
frame.Y,
this.CornerRadius);
}
CGPath CreateTrianglePath(nfloat x, nfloat y, nfloat width, nfloat height, nfloat cornerRadius)
{
//calc 3 points for the triangle
var point1 = new CGPoint(x + width, y + height); //mid right
var point2 = new CGPoint(x, y); //upper left
var point3 = new CGPoint(x, y + height); //mid left
var point4 = new CGPoint(x, y + Frame.Height); //lower left
var point5 = new CGPoint(x + width, y + Frame.Height); //lower right
//calc the center of an edge
var baseMidpoint = new CGPoint((point4.X + point5.X) / 2.0f, (point4.Y + point5.Y) / 2.0f);
//create the path starting with base midpoint and adding arc counter clockwise following the points
var path = new CGPath();
path.MoveToPoint(baseMidpoint.X, baseMidpoint.Y);
path.AddArcToPoint(point5.X, point5.Y, point1.X, point1.Y, cornerRadius);
path.AddArcToPoint(point1.X, point1.Y, point2.X, point2.Y, cornerRadius);
path.AddArcToPoint(point2.X, point2.Y, point3.X, point3.Y, cornerRadius);
path.AddArcToPoint(point3.X, point3.Y, point4.X, point4.Y, cornerRadius);
path.AddArcToPoint(point4.X, point4.Y, point5.X, point5.Y, cornerRadius);
path.CloseSubpath();
return(path);
}
public override void Draw(RectangleF rect)
{
WeatherForecastAnnotation annotation;
CGPath path;
base.Draw(rect);
annotation = Annotation as WeatherForecastAnnotation;
if (annotation == null)
{
return;
}
// Get the current graphics context
CGContext context = UIGraphics.GetCurrentContext();
context.SetLineWidth(1.0f);
// Draw the gray pointed shape:
path = new CGPath();
path.MoveToPoint(14.0f, 0.0f);
path.AddLineToPoint(0.0f, 0.0f);
path.AddLineToPoint(55.0f, 50.0f);
context.AddPath(path);
context.SetFillColor(UIColor.LightGray.CGColor);
context.SetStrokeColor(UIColor.Gray.CGColor);
context.DrawPath(CGPathDrawingMode.FillStroke);
// Draw the cyan rounded box
path = new CGPath();
path.MoveToPoint(15.0f, 0.5f);
path.AddArcToPoint(59.5f, 00.5f, 59.5f, 05.0f, 5.0f);
path.AddArcToPoint(59.5f, 69.5f, 55.5f, 69.5f, 5.0f);
path.AddArcToPoint(10.5f, 69.5f, 10.5f, 64.0f, 5.0f);
path.AddArcToPoint(10.5f, 00.5f, 15.5f, 00.5f, 5.0f);
context.AddPath(path);
context.SetFillColor(UIColor.Cyan.CGColor);
context.SetStrokeColor(UIColor.Blue.CGColor);
context.DrawPath(CGPathDrawingMode.FillStroke);
// Create the location & temperature string
WeatherForecast forecast = annotation.Forecast;
NSString temperature = new NSString(string.Format("{0}\n{1} / {2}", forecast.Place, forecast.High, forecast.Low));
// Draw the text in black
UIColor.Black.SetColor();
temperature.DrawString(new RectangleF(15.0f, 5.0f, 50.0f, 40.0f), UIFont.SystemFontOfSize(11.0f));
temperature.Dispose();
// Draw the icon for the weather condition
string imageName = string.Format("WeatherMap.WeatherIcons.{0}.png", forecast.Condition);
UIImage image = UIImage.FromResource(typeof(WeatherAnnotationView).Assembly, imageName);
image.Draw(new RectangleF(12.5f, 28.0f, 45.0f, 45.0f));
image.Dispose();
}
public override void Draw (CGRect rect)
{
WeatherForecastAnnotation annotation;
CGPath path;
base.Draw (rect);
annotation = Annotation as WeatherForecastAnnotation;
if (annotation == null)
return;
// Get the current graphics context
using (var context = UIGraphics.GetCurrentContext ()) {
context.SetLineWidth (1.0f);
// Draw the gray pointed shape:
path = new CGPath ();
path.MoveToPoint (14.0f, 0.0f);
path.AddLineToPoint (0.0f, 0.0f);
path.AddLineToPoint (55.0f, 50.0f);
context.AddPath (path);
context.SetFillColor (UIColor.LightGray.CGColor);
context.SetStrokeColor (UIColor.Gray.CGColor);
context.DrawPath (CGPathDrawingMode.FillStroke);
// Draw the cyan rounded box
path = new CGPath ();
path.MoveToPoint (15.0f, 0.5f);
path.AddArcToPoint (59.5f, 00.5f, 59.5f, 05.0f, 5.0f);
path.AddArcToPoint (59.5f, 69.5f, 55.5f, 69.5f, 5.0f);
path.AddArcToPoint (10.5f, 69.5f, 10.5f, 64.0f, 5.0f);
path.AddArcToPoint (10.5f, 00.5f, 15.5f, 00.5f, 5.0f);
context.AddPath (path);
context.SetFillColor (UIColor.Cyan.CGColor);
context.SetStrokeColor (UIColor.Blue.CGColor);
context.DrawPath (CGPathDrawingMode.FillStroke);
// Create the location & temperature string
WeatherForecast forecast = annotation.Forecast;
NSString temperature = new NSString (string.Format ("{0}\n{1} / {2}", forecast.Place, forecast.High, forecast.Low));
// Draw the text in black
UIColor.Black.SetColor ();
temperature.DrawString (new CGRect (15.0f, 5.0f, 50.0f, 40.0f), UIFont.SystemFontOfSize (11.0f));
temperature.Dispose ();
// Draw the icon for the weather condition
string imageName = string.Format ("WeatherMap.WeatherIcons.{0}.png", forecast.Condition);
UIImage image = UIImage.FromResource (typeof(WeatherAnnotationView).Assembly, imageName);
image.Draw (new CGRect (12.5f, 28.0f, 45.0f, 45.0f));
image.Dispose ();
}
}
public static CGPath MakeRoundedPath(float size, float radius)
{
float hsize = size / 2;
var path = new CGPath();
path.MoveToPoint(size, hsize);
path.AddArcToPoint(size, size, hsize, size, radius);
path.AddArcToPoint(0, size, 0, hsize, radius);
path.AddArcToPoint(0, 0, hsize, 0, radius);
path.AddArcToPoint(size, 0, size, hsize, radius);
path.CloseSubpath();
return path;
}
internal static CGPath CreateClippingPath(CGRect rect, float radius)
{
var path = new CGPath();
path.MoveToPoint(rect.GetMinX(), rect.GetMinY());
path.AddLineToPoint(rect.GetMinX(), rect.GetMaxY() - radius);
path.AddArcToPoint(rect.GetMinX(), rect.GetMaxY(), rect.GetMinX() + radius, rect.GetMaxY(), radius);
path.AddLineToPoint(rect.GetMaxX() - radius, rect.GetMaxY());
path.AddArcToPoint(rect.GetMaxX(), rect.GetMaxY(), rect.GetMaxX(), rect.GetMaxY() - radius, radius);
path.AddLineToPoint(rect.GetMaxX(), rect.GetMinY());
path.CloseSubpath();
return(path);
}
private static CGPath GetRoundedPath(CornerRadius cornerRadius, CGRect area, CGPath path = null)
{
path ??= new CGPath();
// How AddArcToPoint works:
// http://www.twistedape.me.uk/blog/2013/09/23/what-arctopointdoes/
path.MoveToPoint(area.GetMidX(), area.Y);
path.AddArcToPoint(area.Right, area.Top, area.Right, area.GetMidY(), (float)cornerRadius.TopRight);
path.AddArcToPoint(area.Right, area.Bottom, area.GetMidX(), area.Bottom, (float)cornerRadius.BottomRight);
path.AddArcToPoint(area.Left, area.Bottom, area.Left, area.GetMidY(), (float)cornerRadius.BottomLeft);
path.AddArcToPoint(area.Left, area.Top, area.GetMidX(), area.Top, (float)cornerRadius.TopLeft);
path.AddLineToPoint(area.GetMidX(), area.Y);
return(path);
}
internal static CGPath MakeRoundedPath(float size)
{
float hsize = size/2;
var path = new CGPath ();
path.MoveToPoint (size, hsize);
path.AddArcToPoint (size, size, hsize, size, 4);
path.AddArcToPoint (0, size, 0, hsize, 4);
path.AddArcToPoint (0, 0, hsize, 0, 4);
path.AddArcToPoint (size, 0, size, hsize, 4);
path.CloseSubpath ();
return path;
}
public static CGPath MakeRoundedPath(float size, float radius)
{
float hsize = size / 2;
var path = new CGPath();
path.MoveToPoint(size, hsize);
path.AddArcToPoint(size, size, hsize, size, radius);
path.AddArcToPoint(0, size, 0, hsize, radius);
path.AddArcToPoint(0, 0, hsize, 0, radius);
path.AddArcToPoint(size, 0, size, hsize, radius);
path.CloseSubpath();
return(path);
}
static internal CGPath MakeRoundedPath(float size)
{
float hsize = size / 2;
var path = new CGPath();
path.MoveToPoint(size, hsize);
path.AddArcToPoint(size, size, hsize, size, 4);
path.AddArcToPoint(0, size, 0, hsize, 4);
path.AddArcToPoint(0, 0, hsize, 0, 4);
path.AddArcToPoint(size, 0, size, hsize, 4);
path.CloseSubpath();
return(path);
}
protected virtual void DrawHeart(CGContext context, float x, float y, float width, float height, float cornerRadius, bool fill, bool stroke)
{
var length = Math.Min(height, width);
var startPoint = new CGPoint(x, y + 2f * length / 3f);
var p1 = new CGPoint(x, y + length);
var p2 = new CGPoint(x + 2f * length / 3f, y + length);
var c1 = new CGPoint(x + 2f * length / 3f, y + 2f * length / 3f);
var c2 = new CGPoint(x + length / 3f, y + length / 3f);
var radius = length / 3f;
var path = new CGPath();
path.MoveToPoint(startPoint.X, startPoint.Y);
path.AddArcToPoint(p1.X, p1.Y, p2.X, p2.Y, cornerRadius);
path.AddLineToPoint(p2.X, p2.Y);
path.AddArc(c1.X, c1.Y, radius, (float)-Math.PI / 2f, (float)Math.PI / 2f, false);
path.AddArc(c2.X, c2.Y, radius, 0f, (float)Math.PI, true);
path.CloseSubpath();
var transform = CGAffineTransform.MakeTranslation(-length / 3f, -length * 2f / 3f);
transform.Rotate((float)-Math.PI / 4f);
transform.Scale(0.85f, 0.85f);
transform.Translate(width / 2f, 1.1f * height / 2f);
path = path.CopyByTransformingPath(transform);
context.AddPath(path);
this.DrawPath(context, fill, stroke);
}
protected virtual void DrawPoints(CGContext context, List <CGPoint> points, float cornerRadius, bool fill, bool stroke, float x = 0f, float y = 0f)
{
if (points == null || points.Count == 0)
{
return;
}
var midPoint = new CGPoint(0.5 * (points[0].X + points[1].X), 0.5 * (points[0].Y + points[1].Y));
var path = new CGPath();
path.MoveToPoint(midPoint);
for (var i = 0; i < points.Count; ++i)
{
path.AddArcToPoint(points[(i + 1) % points.Count].X, points[(i + 1) % points.Count].Y, points[(i + 2) % points.Count].X, points[(i + 2) % points.Count].Y, cornerRadius);
}
path.CloseSubpath();
var transform = CGAffineTransform.MakeTranslation(x, y);
//path = path.CopyByTransformingPath(transform);
context.AddPath(path);
this.DrawPath(context, fill, stroke);
}
/// <summary>
/// Creates a path for a rectangle with rounded corners
/// </summary>
/// <param name="rect">
/// The <see cref="CGRect"/> rectangle bounds
/// </param>
/// <param name="radius">
/// The <see cref="System.Single"/> size of the rounded corners
/// </param>
/// <returns>
/// A <see cref="CGPath"/> that can be used to stroke the rounded rectangle
/// </returns>
public static CGPath MakeRoundedRectPath(CGRect rect, float radius)
{
nfloat minx = rect.Left;
nfloat midx = rect.Left + (rect.Width) / 2;
nfloat maxx = rect.Right;
nfloat miny = rect.Top;
nfloat midy = rect.Y + rect.Size.Height / 2;
nfloat maxy = rect.Bottom;
var path = new CGPath();
path.MoveToPoint(minx, midy);
path.AddArcToPoint(minx, miny, midx, miny, radius);
path.AddArcToPoint(maxx, miny, maxx, midy, radius);
path.AddArcToPoint(maxx, maxy, midx, maxy, radius);
path.AddArcToPoint(minx, maxy, minx, midy, radius);
path.CloseSubpath();
return path;
}
/// <summary>
/// Creates a path for a rectangle with rounded corners
/// </summary>
/// <param name="rect">
/// The <see cref="RectangleF"/> rectangle bounds
/// </param>
/// <param name="radius">
/// The <see cref="System.Single"/> size of the rounded corners
/// </param>
/// <returns>
/// A <see cref="CGPath"/> that can be used to stroke the rounded rectangle
/// </returns>
public static CGPath MakeRoundedRectPath(CGRect rect, float radius)
{
var minx = rect.Left;
var midx = rect.Left + (rect.Width) / 2;
var maxx = rect.Right;
var miny = rect.Top;
var midy = rect.Y + rect.Size.Height / 2;
var maxy = rect.Bottom;
var path = new CGPath();
path.MoveToPoint(minx, midy);
path.AddArcToPoint(minx, miny, midx, miny, radius);
path.AddArcToPoint(maxx, miny, maxx, midy, radius);
path.AddArcToPoint(maxx, maxy, midx, maxy, radius);
path.AddArcToPoint(minx, maxy, minx, midy, radius);
path.CloseSubpath();
return(path);
}
private CGPath GenerateRandomPath(CGPoint start)
{
var endingPoint = getEndingPoint();
var path = new CGPath();
path.MoveToPoint(start);
path.AddArcToPoint(start.X, start.Y, endingPoint.X, endingPoint.Y, 10);
//path.AddLineToPoint(endingPoint.X, endingPoint.Y);
return(path);
}
public void AddArcToPoint()
{
var matrix = CGAffineTransform.MakeIdentity();
using (CGPath p1 = new CGPath())
using (CGPath p2 = new CGPath()) {
Assert.IsTrue(p1.IsEmpty, "IsEmpty-1");
p1.MoveToPoint(0, 0);
p1.AddArcToPoint(0, 0, 10, 0, 90);
p2.MoveToPoint(0, 0);
p2.AddArcToPoint(matrix, 0, 0, 10, 0, 90);
Assert.IsFalse(p1.IsEmpty, "IsEmpty-2");
Assert.That(p1, Is.EqualTo(p2), "CGPathEqualToPath");
}
}
private CGPath NewContentPathWithBorderWidth(float borderWidth, FPPopoverArrowDirection direction)
{
float w = Bounds.Size.Width;
float h = Bounds.Size.Height;
float ah = FP_POPOVER_ARROW_HEIGHT; //is the height of the triangle of the arrow
float aw = FP_POPOVER_ARROW_BASE / 2.0f; //is the 1/2 of the base of the arrow
float radius = FP_POPOVER_RADIUS;
float b = borderWidth;
//RectangleF rect;
SizeF rectSize = new SizeF();
PointF rectLocation = new PointF();
if (direction == FPPopoverArrowDirection.FPPopoverArrowDirectionUp)
{
rectSize.Width = w - 2f * b;
rectSize.Height = h - ah - 2f * b;
rectLocation.X = b;
rectLocation.Y = ah + b;
}
else if (direction == FPPopoverArrowDirection.FPPopoverArrowDirectionDown)
{
rectSize.Width = w - 2f * b;
rectSize.Height = h - ah - 2f * b;
rectLocation.X = b;
rectLocation.Y = b;
}
else if (direction == FPPopoverArrowDirection.FPPopoverArrowDirectionRight)
{
rectSize.Width = w - ah - 2f * b;
rectSize.Height = h - 2f * b;
rectLocation.X = b;
rectLocation.Y = b;
}
else
{
//Assuming direction == FPPopoverArrowDirectionLeft to suppress static analyzer warnings
rectSize.Width = w - ah - 2f * b;
rectSize.Height = h - 2f * b;
rectLocation.X = ah + b;
rectLocation.Y = b;
}
//the arrow will be near the origin
float ax = RelativeOrigin.X - aw; //the start of the arrow when UP or DOWN
if (ax < aw + b)
{
ax = aw + b;
}
else if (ax + 2 * aw + 2 * b > Bounds.Size.Width)
{
ax = Bounds.Size.Width - 2 * aw - 2 * b;
}
float ay = RelativeOrigin.Y - aw; //the start of the arrow when RIGHT or LEFT
if (ay < aw + b)
{
ay = aw + b;
}
else if (ay + 2f * aw + 2f * b > Bounds.Size.Height)
{
ay = Bounds.Size.Height - 2f * aw - 2f * b;
}
//ROUNDED RECT
// arrow UP
var rect = new RectangleF(rectLocation, rectSize);
var innerRect = RectangleF.Inflate(rect, -radius, -radius);
float inside_right = innerRect.Location.X + innerRect.Size.Width;
float outside_right = rect.Location.X + rect.Size.Width;
float inside_bottom = innerRect.Location.Y + innerRect.Size.Height;
float outside_bottom = rect.Location.Y + rect.Size.Height;
float inside_top = innerRect.Location.Y;
float outside_top = rect.Location.Y;
float outside_left = rect.Location.X;
//drawing the border with arrow
var path = new CGPath();
path.MoveToPoint(innerRect.Location.X, outside_top);
//top arrow
if (direction == FPPopoverArrowDirection.FPPopoverArrowDirectionUp)
{
path.AddLineToPoint(ax, ah + b);
path.AddLineToPoint(ax + aw, b);
path.AddLineToPoint(ax + 2f * aw, ah + b);
}
path.AddLineToPoint(inside_right, outside_top);
path.AddArcToPoint(outside_right, outside_top, outside_right, inside_top, radius);
//right arrow
if (direction == FPPopoverArrowDirection.FPPopoverArrowDirectionRight)
{
path.AddLineToPoint(outside_right, ay);
path.AddLineToPoint(outside_right + ah + b, ay + aw);
path.AddLineToPoint(outside_right, ay + 2f * aw);
}
path.AddLineToPoint(outside_right, inside_bottom);
path.AddArcToPoint(outside_right, outside_bottom, inside_right, outside_bottom, radius);
//down arrow
if (direction == FPPopoverArrowDirection.FPPopoverArrowDirectionDown)
{
path.AddLineToPoint(ax + 2f * aw, outside_bottom);
path.AddLineToPoint(ax + aw, outside_bottom + ah);
path.AddLineToPoint(ax, outside_bottom);
}
path.AddLineToPoint(innerRect.Location.X, outside_bottom);
path.AddArcToPoint(outside_left, outside_bottom, outside_left, inside_bottom, radius);
//left arrow
if (direction == FPPopoverArrowDirection.FPPopoverArrowDirectionLeft)
{
path.AddLineToPoint(outside_left, ay + 2f * aw);
path.AddLineToPoint(outside_left - ah - b, ay + aw);
path.AddLineToPoint(outside_left, ay);
}
path.AddLineToPoint(outside_left, inside_top);
path.AddArcToPoint(outside_left, outside_top, innerRect.Location.X, outside_top, radius);
path.CloseSubpath();
return(path);
}
/// <summary>
/// Create a vector-based speech bubble using Bezier Paths
/// </summary>
/// <returns>The speech bubble around rect.</returns>
/// <param name="rect">Rect.</param>
/// <param name="arrowDirection">Arrow can be on left or right and top or bottom</param>
/// <param name = "borderColor"></param>
/// <param name = "backgroundColor"></param>
/// <param name = "strokeWidth"></param>
/// <param name = "borderRadius"></param>
/// <param name = "triangleHeight"></param>
/// <param name = "triangleWidth"></param>
public static void DrawSpeechBubbleAroundRect(CGRect rect,
ArrowDirections arrowDirection,
UIColor borderColor,
UIColor fillColor,
UIColor gradientFillColor,
float borderWidth,
float cornerRadius,
float arrowHeight = 16f,
float arrowWidth = 12f,
float arrowOffset = 0f)
{
if (rect == CGRect.Empty)
{
return; // Nothing to draw here folks
}
Console.WriteLine("VectorSpeechBubbleUIView: DrawSpeechBubbleAroundRect");
bool hasUpArrow = arrowDirection.IsUp();
bool hasDownArrow = arrowDirection.IsDown();
bool hasLeftArrow = arrowDirection.IsLeft();
bool hasRightArrow = arrowDirection.IsRight();
float boxWidth = (float)rect.Width - (hasLeftArrow ? arrowHeight : 0f) - (hasRightArrow ? arrowHeight : 0f);
float boxHeight = (float)rect.Height - (hasUpArrow ? arrowHeight : 0f) - (hasDownArrow ? arrowHeight : 0f);
if (boxWidth < 0f)
{
System.Diagnostics.Debug.Fail("Not enough space for the left and/or right arrows: funky rendering is likely!");
}
if (boxHeight < 0f)
{
System.Diagnostics.Debug.Fail("Not enough space for the top and/or bottom arrows: funky rendering is likely!");
}
bool useGradient = true;
if (fillColor == gradientFillColor || gradientFillColor == null)
{
useGradient = false;
}
// Adjust the corner radius to prevent strange things happening when the width/height of the control is very small
if (cornerRadius > (boxWidth - arrowWidth) / 2f)
{
cornerRadius = (boxWidth - arrowWidth) / 2f;
}
if (cornerRadius > (boxHeight - arrowWidth) / 2f)
{
cornerRadius = (boxHeight - arrowWidth) / 2f;
}
// Adjust the arrow offset to be within acceptable bounds
if (arrowOffset < cornerRadius)
{
arrowOffset = cornerRadius;
// don't start the arrow on the rounded part of the rounded rectangle
}
// Reduce the border width if it is bigger than the width or the height of the control
// Strange things happen at the edge :)
if (borderWidth > rect.Width)
{
borderWidth = (float)rect.Width;
}
if (borderWidth > rect.Height)
{
borderWidth = (float)rect.Height;
}
// Reduce the arrow width if there is not enough space to render it
// TODO: This doesn't seem to have any effect
if (arrowDirection.IsLeft() || arrowDirection.IsRight())
{
if (arrowWidth > rect.Height)
{
arrowWidth = (float)rect.Height;
}
}
if (arrowDirection.IsUp() || arrowDirection.IsDown())
{
if (arrowHeight > rect.Width)
{
arrowWidth = (float)rect.Width;
}
}
using (var context = UIGraphics.GetCurrentContext()) {
context.SetLineJoin(CGLineJoin.Round);
context.SetLineWidth(borderWidth);
context.SetStrokeColor(borderColor.CGColor);
context.SetFillColor(fillColor.CGColor);
var path = new CGPath();
var midArrowWidth = arrowWidth / 2.0f;
var leftX = 0.5f;
if (hasLeftArrow)
{
leftX = leftX + arrowHeight;
}
float rightX = (float)Math.Round(rect.Width) - 0.5f;
if (hasRightArrow)
{
rightX = rightX - arrowHeight;
}
var topY = 0.5f;
if (hasUpArrow)
{
topY = topY + arrowHeight;
}
float bottomY = (float)rect.Height - 0.5f;
if (hasDownArrow)
{
bottomY = bottomY - arrowHeight;
}
var midY = (nfloat)Math.Round((topY + bottomY) / 2.0f) + 0.5f;
var midX = (nfloat)Math.Round((leftX + rightX) / 2.0f) + 0.5f;
// Starts at top left corner
path.MoveToPoint(leftX + cornerRadius, topY);
// Determine offset for the arrow position based on whether its left, center, or right, and the ArrowOffset property
nfloat arrowOffsetX = 0f;
nfloat arrowOffsetY = 0f;
if (arrowDirection == ArrowDirections.UpLeft || arrowDirection == ArrowDirections.DownLeft)
{
arrowOffsetX = (nfloat)(-1 * ((rect.Width / 2f) - midArrowWidth - cornerRadius - 4f)); // Move the up/down arrow to the left corner
// Items on the left shouldn't be right of the midline
if (arrowOffsetX > 0f)
{
arrowOffsetX = 0f;
}
}
if (arrowDirection == ArrowDirections.UpRight || arrowDirection == ArrowDirections.DownRight)
{
arrowOffsetX = (nfloat)((rect.Width / 2f) - midArrowWidth - cornerRadius - 4f); // Move the up/down arrow to the right corner
// Items on the right shouldn't be left of the midline
if (arrowOffsetX < 0f)
{
arrowOffsetX = 0f;
}
}
if (arrowDirection == ArrowDirections.LeftTop || arrowDirection == ArrowDirections.RightTop)
{
arrowOffsetY = (nfloat)(-1 * ((rect.Height / 2f) - midArrowWidth - cornerRadius - 4f)); // Move the left/tight arrow to the top corner
// Items on the top shouldn't be below the midline
if (arrowOffsetY > 0f)
{
arrowOffsetY = 0f;
}
}
if (arrowDirection == ArrowDirections.LeftBottom || arrowDirection == ArrowDirections.RightBottom)
{
arrowOffsetY = (nfloat)((rect.Height / 2f) - midArrowWidth - cornerRadius - 4f); // Move the up/down arrow to the bottom corner
// Items on the bottom shouldn't be above the midline
if (arrowOffsetY < 0f)
{
arrowOffsetY = 0f;
}
}
if (hasUpArrow)
{
// Adds a line to where the arrow starts
path.AddLineToPoint((nfloat)Math.Round(midX - midArrowWidth) + 0.5f + arrowOffsetX, topY);
// Draws the arrow up, and then down again
path.AddLineToPoint(midX + arrowOffsetX, 0.5f);
path.AddLineToPoint(midX + midArrowWidth + 0.5f + arrowOffsetX, arrowHeight + 0.5f);
}
// Top right corner
path.AddArcToPoint(rightX, topY, rightX, bottomY, cornerRadius);
if (hasRightArrow)
{
// Adds a line to where the arrow starts
path.AddLineToPoint(rightX, midY - midArrowWidth + arrowOffsetY);
// Draws the arrow right, and then left again
path.AddLineToPoint(rightX + arrowHeight, midY + arrowOffsetY);
path.AddLineToPoint(rightX, midY + midArrowWidth + arrowOffsetY);
}
// To Bottom right corner (curling towards bottom left corner)
path.AddArcToPoint(rightX, bottomY, leftX, bottomY, cornerRadius);
if (hasDownArrow)
{
// Adds a line to where the arrow starts
path.AddLineToPoint(midX + midArrowWidth + arrowOffsetX, bottomY);
// Draws the arrow up, and then down again
path.AddLineToPoint(midX + arrowOffsetX, bottomY + arrowHeight);
path.AddLineToPoint(midX - midArrowWidth + arrowOffsetX, bottomY);
}
// To bottom left corner (curling up in direction of top left corner)
path.AddArcToPoint(leftX, bottomY, leftX, topY, cornerRadius);
if (hasLeftArrow)
{
// Adds a line to where the arrow starts
path.AddLineToPoint(leftX, midY + midArrowWidth + arrowOffsetY);
// Draws the arrow right, and then left again
path.AddLineToPoint(leftX - arrowHeight, midY + arrowOffsetY);
path.AddLineToPoint(leftX, midY - midArrowWidth + arrowOffsetY);
}
// To top left corner (curling in direction of top right corner)
path.AddArcToPoint(leftX, topY, rightX, topY, cornerRadius);
path.CloseSubpath();
context.AddPath(path);
if (useGradient)
{
context.Clip();
using (var rgb = CGColorSpace.CreateDeviceRGB()) {
CGGradient gradient = new CGGradient(rgb, new CGColor[] {
gradientFillColor.CGColor,
fillColor.CGColor,
});
context.DrawLinearGradient(gradient,
new CGPoint(path.BoundingBox.Left, path.BoundingBox.Top),
new CGPoint(path.BoundingBox.GetMidX(), path.BoundingBox.Bottom),
CGGradientDrawingOptions.DrawsBeforeStartLocation | CGGradientDrawingOptions.DrawsAfterEndLocation);
}
context.AddPath(path);
context.DrawPath(CGPathDrawingMode.Stroke);
}
else
{
context.Clip();
context.AddPath(path);
// Single color only
context.DrawPath(CGPathDrawingMode.FillStroke);
}
}
}
public CGPath GetCellBorderPath(RectangleF rect)
{
var cornerRadius = 10;
float minx = rect.GetMinX(), midx = rect.GetMidX(), maxx = rect.GetMaxX();
float miny = rect.GetMinY(), midy = rect.GetMidY(), maxy = rect.GetMaxY();
CGPath path = new CGPath();
var cellPosition = CellPosition;
if (cellPosition == CellPosition.Top)
{
minx = minx + 1;
miny = miny + 1;
maxx = maxx - 1;
path.MoveToPoint(minx, maxy);
path.AddArcToPoint(minx, miny, midx, miny, cornerRadius);
path.AddArcToPoint(maxx, miny, maxx, maxy, cornerRadius);
path.AddLineToPoint(maxx, maxy);
}
else if (cellPosition == CellPosition.Bottom)
{
minx = minx + 1;
maxx = maxx - 1;
maxy = maxy - 1;
path.MoveToPoint(minx, miny);
path.AddArcToPoint(minx, maxy, midx, maxy, cornerRadius);
path.AddArcToPoint(maxx, maxy, maxx, miny, cornerRadius);
path.AddLineToPoint(maxx, miny);
}
else if (cellPosition == CellPosition.Middle)
{
minx = minx + 1;
maxx = maxx - 1;
path.MoveToPoint(minx, miny);
path.AddLineToPoint(maxx, miny);
path.AddLineToPoint(maxx, maxy);
path.AddLineToPoint(minx, maxy);
}
else if (cellPosition == CellPosition.Single)
{
minx = minx + 1;
miny = miny + 1;
maxx = maxx - 1;
maxy = maxy - 1;
path.MoveToPoint(minx, midy);
path.AddArcToPoint(minx, miny, midx, miny, cornerRadius);
path.AddArcToPoint(maxx, miny, maxx, midy, cornerRadius);
path.AddArcToPoint(maxx, maxy, midx, maxy, cornerRadius);
path.AddArcToPoint(minx, maxy, minx, midy, cornerRadius);
}
path.CloseSubpath();
return(path);
}
private static IDisposable InnerCreateLayer(CALayer parent, CGRect area, Brush background, Thickness borderThickness, Brush borderBrush, CornerRadius cornerRadius)
{
var disposables = new CompositeDisposable();
var sublayers = new List <CALayer>();
var adjustedLineWidth = borderThickness.Top;
var adjustedLineWidthOffset = adjustedLineWidth / 2;
var adjustedArea = area;
adjustedArea = adjustedArea.Shrink((nfloat)adjustedLineWidthOffset);
if (cornerRadius != CornerRadius.None)
{
var maxRadius = Math.Max(0, Math.Min((float)area.Width / 2 - adjustedLineWidthOffset, (float)area.Height / 2 - adjustedLineWidthOffset));
cornerRadius = new CornerRadius(
Math.Min(cornerRadius.TopLeft, maxRadius),
Math.Min(cornerRadius.TopRight, maxRadius),
Math.Min(cornerRadius.BottomRight, maxRadius),
Math.Min(cornerRadius.BottomLeft, maxRadius));
CAShapeLayer layer = new CAShapeLayer();
layer.LineWidth = (nfloat)adjustedLineWidth;
layer.FillColor = null;
var path = new CGPath();
Brush.AssignAndObserveBrush(borderBrush, color => layer.StrokeColor = color)
.DisposeWith(disposables);
// How AddArcToPoint works:
// http://www.twistedape.me.uk/blog/2013/09/23/what-arctopointdoes/
path.MoveToPoint(adjustedArea.GetMidX(), adjustedArea.Y);
path.AddArcToPoint(adjustedArea.Right, adjustedArea.Top, adjustedArea.Right, adjustedArea.GetMidY(), (float)cornerRadius.TopRight);
path.AddArcToPoint(adjustedArea.Right, adjustedArea.Bottom, adjustedArea.GetMidX(), adjustedArea.Bottom, (float)cornerRadius.BottomRight);
path.AddArcToPoint(adjustedArea.Left, adjustedArea.Bottom, adjustedArea.Left, adjustedArea.GetMidY(), (float)cornerRadius.BottomLeft);
path.AddArcToPoint(adjustedArea.Left, adjustedArea.Top, adjustedArea.GetMidX(), adjustedArea.Top, (float)cornerRadius.TopLeft);
path.CloseSubpath();
var lgbBackground = background as LinearGradientBrush;
var scbBackground = background as SolidColorBrush;
var imgBackground = background as ImageBrush;
var insertionIndex = 0;
if (lgbBackground != null)
{
var fillMask = new CAShapeLayer()
{
Path = path,
Frame = area,
// We only use the fill color to create the mask area
FillColor = UIColor.White.CGColor,
};
// We reduce the adjustedArea again so that the gradient is inside the border (like in Windows)
adjustedArea = adjustedArea.Shrink((nfloat)adjustedLineWidthOffset);
CreateLinearGradientBrushLayers(area, adjustedArea, parent, sublayers, ref insertionIndex, lgbBackground, fillMask);
}
else if (scbBackground != null)
{
Brush.AssignAndObserveBrush(scbBackground, color => layer.FillColor = color)
.DisposeWith(disposables);
}
else if (imgBackground != null)
{
var uiImage = imgBackground.ImageSource?.ImageData;
if (uiImage != null && uiImage.Size != CGSize.Empty)
{
var fillMask = new CAShapeLayer()
{
Path = path,
Frame = area,
// We only use the fill color to create the mask area
FillColor = UIColor.White.CGColor,
};
// We reduce the adjustedArea again so that the image is inside the border (like in Windows)
adjustedArea = adjustedArea.Shrink((nfloat)adjustedLineWidthOffset);
CreateImageBrushLayers(area, adjustedArea, parent, sublayers, ref insertionIndex, imgBackground, fillMask);
}
}
else
{
layer.FillColor = Colors.Transparent;
}
layer.Path = path;
sublayers.Add(layer);
parent.InsertSublayer(layer, insertionIndex);
}
else
{
var lgbBackground = background as LinearGradientBrush;
var scbBackground = background as SolidColorBrush;
var imgBackground = background as ImageBrush;
if (lgbBackground != null)
{
var fullArea = new CGRect(
area.X + borderThickness.Left,
area.Y + borderThickness.Top,
area.Width - borderThickness.Left - borderThickness.Right,
area.Height - borderThickness.Top - borderThickness.Bottom);
var insideArea = new CGRect(CGPoint.Empty, fullArea.Size);
var insertionIndex = 0;
CreateLinearGradientBrushLayers(fullArea, insideArea, parent, sublayers, ref insertionIndex, lgbBackground, fillMask: null);
}
else if (scbBackground != null)
{
Brush.AssignAndObserveBrush(scbBackground, c => parent.BackgroundColor = c)
.DisposeWith(disposables);
// This is required because changing the CornerRadius changes the background drawing
// implementation and we don't want a rectangular background behind a rounded background.
Disposable.Create(() => parent.BackgroundColor = null)
.DisposeWith(disposables);
}
else if (imgBackground != null)
{
var uiImage = imgBackground.ImageSource?.ImageData;
if (uiImage != null && uiImage.Size != CGSize.Empty)
{
var fullArea = new CGRect(
area.X + borderThickness.Left,
area.Y + borderThickness.Top,
area.Width - borderThickness.Left - borderThickness.Right,
area.Height - borderThickness.Top - borderThickness.Bottom);
var insideArea = new CGRect(CGPoint.Empty, fullArea.Size);
var insertionIndex = 0;
CreateImageBrushLayers(fullArea, insideArea, parent, sublayers, ref insertionIndex, imgBackground, fillMask: null);
}
}
else
{
parent.BackgroundColor = Colors.Transparent;
}
if (borderThickness != Thickness.Empty)
{
var strokeColor = borderBrush ?? SolidColorBrushHelper.Transparent;
Action <Action <CAShapeLayer, CGPath> > createLayer = builder =>
{
CAShapeLayer layer = new CAShapeLayer();
var path = new CGPath();
Brush.AssignAndObserveBrush(borderBrush, c => layer.StrokeColor = c)
.DisposeWith(disposables);
builder(layer, path);
layer.Path = path;
// Must be inserted below the other subviews, which may happen when
// the current view has subviews.
sublayers.Add(layer);
parent.InsertSublayer(layer, 0);
};
if (borderThickness.Top != 0)
{
createLayer((l, path) =>
{
l.LineWidth = (nfloat)borderThickness.Top;
var lineWidthAdjust = (nfloat)(borderThickness.Top / 2);
path.MoveToPoint(area.X, area.Y + lineWidthAdjust);
path.AddLineToPoint(area.X + area.Width, area.Y + lineWidthAdjust);
path.CloseSubpath();
});
}
if (borderThickness.Bottom != 0)
{
createLayer((l, path) =>
{
l.LineWidth = (nfloat)borderThickness.Bottom;
var lineWidthAdjust = borderThickness.Bottom / 2;
path.MoveToPoint(area.X, (nfloat)(area.Y + area.Height - lineWidthAdjust));
path.AddLineToPoint(area.X + area.Width, (nfloat)(area.Y + area.Height - lineWidthAdjust));
path.CloseSubpath();
});
}
if (borderThickness.Left != 0)
{
createLayer((l, path) =>
{
l.LineWidth = (nfloat)borderThickness.Left;
var lineWidthAdjust = borderThickness.Left / 2;
path.MoveToPoint((nfloat)(area.X + lineWidthAdjust), area.Y);
path.AddLineToPoint((nfloat)(area.X + lineWidthAdjust), area.Y + area.Height);
path.CloseSubpath();
});
}
if (borderThickness.Right != 0)
{
createLayer((l, path) =>
{
l.LineWidth = (nfloat)borderThickness.Right;
var lineWidthAdjust = borderThickness.Right / 2;
path.MoveToPoint((nfloat)(area.X + area.Width - lineWidthAdjust), area.Y);
path.AddLineToPoint((nfloat)(area.X + area.Width - lineWidthAdjust), area.Y + area.Height);
path.CloseSubpath();
});
}
}
}
disposables.Add(() =>
{
foreach (var sl in sublayers)
{
sl.RemoveFromSuperLayer();
sl.Dispose();
}
}
);
return(disposables);
}
public CGPath GetCellBorderPath(RectangleF rect)
{
var cornerRadius = 10;
float minx = rect.GetMinX(), midx = rect.GetMidX(), maxx = rect.GetMaxX();
float miny = rect.GetMinY(), midy = rect.GetMidY(), maxy = rect.GetMaxY();
CGPath path = new CGPath();
var cellPosition = CellPosition;
if (cellPosition == CellPosition.Top)
{
minx = minx + 1;
miny = miny + 1;
maxx = maxx - 1;
path.MoveToPoint(minx, maxy);
path.AddArcToPoint(minx, miny, midx, miny, cornerRadius);
path.AddArcToPoint(maxx, miny, maxx, maxy, cornerRadius);
path.AddLineToPoint(maxx, maxy);
}
else if (cellPosition == CellPosition.Bottom)
{
minx = minx + 1;
maxx = maxx - 1;
maxy = maxy - 1;
path.MoveToPoint(minx, miny);
path.AddArcToPoint(minx, maxy, midx, maxy, cornerRadius);
path.AddArcToPoint(maxx, maxy, maxx, miny, cornerRadius);
path.AddLineToPoint(maxx, miny);
}
else if (cellPosition == CellPosition.Middle)
{
minx = minx + 1;
maxx = maxx - 1;
path.MoveToPoint(minx, miny);
path.AddLineToPoint(maxx, miny);
path.AddLineToPoint(maxx, maxy);
path.AddLineToPoint(minx, maxy);
}
else if (cellPosition == CellPosition.Single)
{
minx = minx + 1;
miny = miny + 1;
maxx = maxx - 1;
maxy = maxy - 1;
path.MoveToPoint(minx, midy);
path.AddArcToPoint(minx, miny, midx, miny, cornerRadius);
path.AddArcToPoint(maxx, miny, maxx, midy, cornerRadius);
path.AddArcToPoint(maxx, maxy, midx, maxy, cornerRadius);
path.AddArcToPoint(minx, maxy, minx, midy, cornerRadius);
}
path.CloseSubpath();
return path;
}
/// <summary>
/// Create a vector-based speech bubble using Bezier Paths
/// </summary>
/// <returns>The speech bubble around rect.</returns>
/// <param name="rect">Rect.</param>
/// <param name="arrowDirection">Arrow can be on left or right and top or bottom</param>
/// <param name = "borderColor"></param>
/// <param name = "backgroundColor"></param>
/// <param name = "strokeWidth"></param>
/// <param name = "borderRadius"></param>
/// <param name = "triangleHeight"></param>
/// <param name = "triangleWidth"></param>
public static void DrawSpeechBubbleAroundRect(CGRect rect,
ArrowDirections arrowDirection,
UIColor borderColor,
UIColor fillColor,
UIColor gradientFillColor,
float borderWidth,
float cornerRadius,
float arrowHeight = 16f,
float arrowWidth = 12f,
float arrowOffset = 0f)
{
if (rect == CGRect.Empty)
return; // Nothing to draw here folks
Console.WriteLine("VectorSpeechBubbleUIView: DrawSpeechBubbleAroundRect");
bool hasUpArrow = arrowDirection.IsUp();
bool hasDownArrow = arrowDirection.IsDown();
bool hasLeftArrow = arrowDirection.IsLeft();
bool hasRightArrow = arrowDirection.IsRight();
float boxWidth = (float)rect.Width - (hasLeftArrow ? arrowHeight : 0f) - (hasRightArrow ? arrowHeight : 0f);
float boxHeight = (float)rect.Height - (hasUpArrow ? arrowHeight : 0f) - (hasDownArrow ? arrowHeight : 0f);
if (boxWidth < 0f) {
System.Diagnostics.Debug.Fail("Not enough space for the left and/or right arrows: funky rendering is likely!");
}
if (boxHeight < 0f) {
System.Diagnostics.Debug.Fail("Not enough space for the top and/or bottom arrows: funky rendering is likely!");
}
bool useGradient = true;
if (fillColor == gradientFillColor || gradientFillColor == null) {
useGradient = false;
}
// Adjust the corner radius to prevent strange things happening when the width/height of the control is very small
if (cornerRadius > (boxWidth - arrowWidth)/2f) {
cornerRadius = (boxWidth - arrowWidth)/2f;
}
if (cornerRadius > (boxHeight - arrowWidth)/2f) {
cornerRadius = (boxHeight - arrowWidth)/2f;
}
// Adjust the arrow offset to be within acceptable bounds
if (arrowOffset < cornerRadius) {
arrowOffset = cornerRadius;
// don't start the arrow on the rounded part of the rounded rectangle
}
// Reduce the border width if it is bigger than the width or the height of the control
// Strange things happen at the edge :)
if (borderWidth > rect.Width)
borderWidth = (float)rect.Width;
if (borderWidth > rect.Height)
borderWidth = (float)rect.Height;
// Reduce the arrow width if there is not enough space to render it
// TODO: This doesn't seem to have any effect
if (arrowDirection.IsLeft () || arrowDirection.IsRight ()) {
if (arrowWidth > rect.Height)
arrowWidth = (float)rect.Height;
}
if (arrowDirection.IsUp () || arrowDirection.IsDown ()) {
if (arrowHeight > rect.Width)
arrowWidth = (float)rect.Width;
}
using (var context = UIGraphics.GetCurrentContext ()) {
context.SetLineJoin (CGLineJoin.Round);
context.SetLineWidth (borderWidth);
context.SetStrokeColor (borderColor.CGColor);
context.SetFillColor (fillColor.CGColor);
var path = new CGPath ();
var midArrowWidth = arrowWidth / 2.0f;
var leftX = 0.5f;
if (hasLeftArrow)
leftX = leftX + arrowHeight;
float rightX = (float)Math.Round(rect.Width) - 0.5f;
if (hasRightArrow)
rightX = rightX - arrowHeight;
var topY = 0.5f;
if (hasUpArrow) {
topY = topY + arrowHeight;
}
float bottomY = (float)rect.Height - 0.5f;
if (hasDownArrow) {
bottomY = bottomY - arrowHeight;
}
var midY = (nfloat)Math.Round ((topY + bottomY) / 2.0f) + 0.5f;
var midX = (nfloat)Math.Round ((leftX + rightX) / 2.0f) + 0.5f;
// Starts at top left corner
path.MoveToPoint (leftX + cornerRadius, topY);
// Determine offset for the arrow position based on whether its left, center, or right, and the ArrowOffset property
nfloat arrowOffsetX = 0f;
nfloat arrowOffsetY = 0f;
if (arrowDirection == ArrowDirections.UpLeft || arrowDirection == ArrowDirections.DownLeft) {
arrowOffsetX = (nfloat)(-1 * ((rect.Width / 2f) - midArrowWidth - cornerRadius - 4f)); // Move the up/down arrow to the left corner
// Items on the left shouldn't be right of the midline
if (arrowOffsetX > 0f)
arrowOffsetX = 0f;
}
if (arrowDirection == ArrowDirections.UpRight || arrowDirection == ArrowDirections.DownRight) {
arrowOffsetX = (nfloat)((rect.Width / 2f) - midArrowWidth - cornerRadius - 4f); // Move the up/down arrow to the right corner
// Items on the right shouldn't be left of the midline
if (arrowOffsetX < 0f)
arrowOffsetX = 0f;
}
if (arrowDirection == ArrowDirections.LeftTop || arrowDirection == ArrowDirections.RightTop) {
arrowOffsetY = (nfloat)(-1 * ((rect.Height / 2f) - midArrowWidth - cornerRadius - 4f)); // Move the left/tight arrow to the top corner
// Items on the top shouldn't be below the midline
if (arrowOffsetY > 0f)
arrowOffsetY = 0f;
}
if (arrowDirection == ArrowDirections.LeftBottom || arrowDirection == ArrowDirections.RightBottom) {
arrowOffsetY = (nfloat)((rect.Height / 2f) - midArrowWidth - cornerRadius - 4f); // Move the up/down arrow to the bottom corner
// Items on the bottom shouldn't be above the midline
if (arrowOffsetY < 0f)
arrowOffsetY = 0f;
}
if (hasUpArrow) {
// Adds a line to where the arrow starts
path.AddLineToPoint ((nfloat)Math.Round(midX - midArrowWidth) + 0.5f + arrowOffsetX, topY);
// Draws the arrow up, and then down again
path.AddLineToPoint (midX + arrowOffsetX, 0.5f);
path.AddLineToPoint (midX + midArrowWidth + 0.5f + arrowOffsetX, arrowHeight + 0.5f);
}
// Top right corner
path.AddArcToPoint (rightX, topY, rightX, bottomY, cornerRadius);
if (hasRightArrow) {
// Adds a line to where the arrow starts
path.AddLineToPoint (rightX, midY - midArrowWidth + arrowOffsetY );
// Draws the arrow right, and then left again
path.AddLineToPoint (rightX + arrowHeight, midY + arrowOffsetY);
path.AddLineToPoint (rightX, midY + midArrowWidth + arrowOffsetY);
}
// To Bottom right corner (curling towards bottom left corner)
path.AddArcToPoint(rightX, bottomY, leftX, bottomY, cornerRadius);
if (hasDownArrow) {
// Adds a line to where the arrow starts
path.AddLineToPoint (midX + midArrowWidth + arrowOffsetX, bottomY);
// Draws the arrow up, and then down again
path.AddLineToPoint (midX + arrowOffsetX, bottomY + arrowHeight);
path.AddLineToPoint (midX - midArrowWidth + arrowOffsetX, bottomY);
}
// To bottom left corner (curling up in direction of top left corner)
path.AddArcToPoint (leftX, bottomY, leftX, topY, cornerRadius);
if (hasLeftArrow) {
// Adds a line to where the arrow starts
path.AddLineToPoint (leftX, midY + midArrowWidth + arrowOffsetY );
// Draws the arrow right, and then left again
path.AddLineToPoint (leftX - arrowHeight, midY + arrowOffsetY);
path.AddLineToPoint (leftX, midY - midArrowWidth + arrowOffsetY);
}
// To top left corner (curling in direction of top right corner)
path.AddArcToPoint(leftX, topY, rightX, topY, cornerRadius);
path.CloseSubpath ();
context.AddPath (path);
if (useGradient) {
context.Clip ();
using (var rgb = CGColorSpace.CreateDeviceRGB ()) {
CGGradient gradient = new CGGradient (rgb, new CGColor[] {
gradientFillColor.CGColor,
fillColor.CGColor,
});
context.DrawLinearGradient (gradient,
new CGPoint (path.BoundingBox.Left, path.BoundingBox.Top),
new CGPoint (path.BoundingBox.GetMidX (), path.BoundingBox.Bottom),
CGGradientDrawingOptions.DrawsBeforeStartLocation | CGGradientDrawingOptions.DrawsAfterEndLocation);
}
context.AddPath (path);
context.DrawPath (CGPathDrawingMode.Stroke);
} else {
context.Clip ();
context.AddPath (path);
// Single color only
context.DrawPath (CGPathDrawingMode.FillStroke);
}
}
}