internal static Android.Graphics.Path ToPath(this Windows.Foundation.Rect rect)
{
var path = new Android.Graphics.Path();
path.AddRect(rect.ToRectF(), Path.Direction.Cw);
return(path);
}
public static APath ToAPath(this Geometry geometry, Context context)
{
APath path = new APath();
float density = context.Resources.DisplayMetrics.Density;
if (geometry is LineGeometry)
{
LineGeometry lineGeometry = geometry as LineGeometry;
path.MoveTo(
density * (float)lineGeometry.StartPoint.X,
density * (float)lineGeometry.StartPoint.Y);
path.LineTo(
density * (float)lineGeometry.EndPoint.X,
density * (float)lineGeometry.EndPoint.Y);
}
else if (geometry is RectangleGeometry)
{
FormsRectangle rect = (geometry as RectangleGeometry).Rect;
path.AddRect(
density * (float)rect.Left,
density * (float)rect.Top,
density * (float)rect.Right,
density * (float)rect.Bottom,
APath.Direction.Cw);
}
else if (geometry is EllipseGeometry)
{
EllipseGeometry ellipseGeometry = geometry as EllipseGeometry;
path.AddOval(new RectF(
density * (float)(ellipseGeometry.Center.X - ellipseGeometry.RadiusX),
density * (float)(ellipseGeometry.Center.Y - ellipseGeometry.RadiusY),
density * (float)(ellipseGeometry.Center.X + ellipseGeometry.RadiusX),
density * (float)(ellipseGeometry.Center.Y + ellipseGeometry.RadiusY)),
APath.Direction.Cw);
}
else if (geometry is GeometryGroup)
{
GeometryGroup geometryGroup = geometry as GeometryGroup;
path.SetFillType(geometryGroup.FillRule == FillRule.Nonzero ? APath.FillType.Winding : APath.FillType.EvenOdd);
foreach (Geometry child in geometryGroup.Children)
{
APath childPath = child.ToAPath(context);
path.AddPath(childPath);
}
}
else if (geometry is PathGeometry)
{
PathGeometry pathGeometry = geometry as PathGeometry;
path.SetFillType(pathGeometry.FillRule == FillRule.Nonzero ? APath.FillType.Winding : APath.FillType.EvenOdd);
foreach (PathFigure pathFigure in pathGeometry.Figures)
{
path.MoveTo(
density * (float)pathFigure.StartPoint.X,
density * (float)pathFigure.StartPoint.Y);
Point lastPoint = pathFigure.StartPoint;
foreach (PathSegment pathSegment in pathFigure.Segments)
{
// LineSegment
if (pathSegment is LineSegment)
{
LineSegment lineSegment = pathSegment as LineSegment;
path.LineTo(
density * (float)lineSegment.Point.X,
density * (float)lineSegment.Point.Y);
lastPoint = lineSegment.Point;
}
// PolylineSegment
else if (pathSegment is PolyLineSegment)
{
PolyLineSegment polylineSegment = pathSegment as PolyLineSegment;
PointCollection points = polylineSegment.Points;
for (int i = 0; i < points.Count; i++)
{
path.LineTo(
density * (float)points[i].X,
density * (float)points[i].Y);
}
lastPoint = points[points.Count - 1];
}
// BezierSegment
else if (pathSegment is BezierSegment)
{
BezierSegment bezierSegment = pathSegment as BezierSegment;
path.CubicTo(
density * (float)bezierSegment.Point1.X, density * (float)bezierSegment.Point1.Y,
density * (float)bezierSegment.Point2.X, density * (float)bezierSegment.Point2.Y,
density * (float)bezierSegment.Point3.X, density * (float)bezierSegment.Point3.Y);
lastPoint = bezierSegment.Point3;
}
// PolyBezierSegment
else if (pathSegment is PolyBezierSegment)
{
PolyBezierSegment polyBezierSegment = pathSegment as PolyBezierSegment;
PointCollection points = polyBezierSegment.Points;
if (points.Count >= 3)
{
for (int i = 0; i < points.Count; i += 3)
{
path.CubicTo(
density * (float)points[i + 0].X, density * (float)points[i + 0].Y,
density * (float)points[i + 1].X, density * (float)points[i + 1].Y,
density * (float)points[i + 2].X, density * (float)points[i + 2].Y);
}
}
lastPoint = points[points.Count - 1];
}
// QuadraticBezierSegment
else if (pathSegment is QuadraticBezierSegment)
{
QuadraticBezierSegment bezierSegment = pathSegment as QuadraticBezierSegment;
path.QuadTo(
density * (float)bezierSegment.Point1.X, density * (float)bezierSegment.Point1.Y,
density * (float)bezierSegment.Point2.X, density * (float)bezierSegment.Point2.Y);
lastPoint = bezierSegment.Point2;
}
// PolyQuadraticBezierSegment
else if (pathSegment is PolyQuadraticBezierSegment)
{
PolyQuadraticBezierSegment polyBezierSegment = pathSegment as PolyQuadraticBezierSegment;
PointCollection points = polyBezierSegment.Points;
if (points.Count >= 2)
{
for (int i = 0; i < points.Count; i += 2)
{
path.QuadTo(
density * (float)points[i + 0].X, density * (float)points[i + 0].Y,
density * (float)points[i + 1].X, density * (float)points[i + 1].Y);
}
}
lastPoint = points[points.Count - 1];
}
// ArcSegment
else if (pathSegment is ArcSegment)
{
ArcSegment arcSegment = pathSegment as ArcSegment;
List <Point> points = new List <Point>();
GeometryHelper.FlattenArc(
points,
lastPoint,
arcSegment.Point,
arcSegment.Size.Width,
arcSegment.Size.Height,
arcSegment.RotationAngle,
arcSegment.IsLargeArc,
arcSegment.SweepDirection == SweepDirection.CounterClockwise,
1);
for (int i = 0; i < points.Count; i++)
{
path.LineTo(
density * (float)points[i].X,
density * (float)points[i].Y);
}
if (points.Count > 0)
{
lastPoint = points[points.Count - 1];
}
}
}
if (pathFigure.IsClosed)
{
path.Close();
}
}
}
return(path);
}
public void Draw(Canvas canvas)
{
if (Hidden)
{
return;
}
canvas.Save();
if (!Focused)
{
outlinePaint.Color = Color.White;
canvas.DrawRect(DrawRect, outlinePaint);
}
else
{
Rect viewDrawingRect = new Rect();
context.GetDrawingRect(viewDrawingRect);
outlinePaint.Color = Color.White;// new Color(0XFF, 0xFF, 0x8A, 0x00);
focusPaint.Color = new Color(50, 50, 50, 125);
Path path = new Path();
path.AddRect(new RectF(DrawRect), Path.Direction.Cw);
canvas.ClipPath(path, Region.Op.Difference);
canvas.DrawRect(viewDrawingRect, focusPaint);
canvas.Restore();
canvas.DrawPath(path, outlinePaint);
if (mode == ModifyMode.Grow)
{
int left = DrawRect.Left + 1;
int right = DrawRect.Right + 1;
int top = DrawRect.Top + 4;
int bottom = DrawRect.Bottom + 3;
int widthWidth = resizeDrawableWidth.IntrinsicWidth / 2;
int widthHeight = resizeDrawableWidth.IntrinsicHeight / 2;
int heightHeight = resizeDrawableHeight.IntrinsicHeight / 2;
int heightWidth = resizeDrawableHeight.IntrinsicWidth / 2;
int xMiddle = DrawRect.Left + ((DrawRect.Right - DrawRect.Left) / 2);
int yMiddle = DrawRect.Top + ((DrawRect.Bottom - DrawRect.Top) / 2);
resizeDrawableWidth.SetBounds(left - widthWidth,
yMiddle - widthHeight,
left + widthWidth,
yMiddle + widthHeight);
resizeDrawableWidth.Draw(canvas);
resizeDrawableWidth.SetBounds(right - widthWidth,
yMiddle - widthHeight,
right + widthWidth,
yMiddle + widthHeight);
resizeDrawableWidth.Draw(canvas);
resizeDrawableHeight.SetBounds(xMiddle - heightWidth,
top - heightHeight,
xMiddle + heightWidth,
top + heightHeight);
resizeDrawableHeight.Draw(canvas);
resizeDrawableHeight.SetBounds(xMiddle - heightWidth,
bottom - heightHeight,
xMiddle + heightWidth,
bottom + heightHeight);
resizeDrawableHeight.Draw(canvas);
}
}
}
void CreatePath()
{
droidGraphics.Path path = new droidGraphics.Path();
path.AddRect(new droidGraphics.RectF(0, 0, 1, 1), droidGraphics.Path.Direction.Cw); // TODO: Is direction correct?
Path = path;
}
internal void Draw(Canvas canvas, bool isRound)
{
if (Hidden)
{
return;
}
canvas.Save();
var resizerPaint = new Paint { Color = new Color(255, 255, 255, 200) };
//if (!Focused)
//{
// outlinePaint.Color = Color.White;
// canvas.DrawRect(DrawRect, outlinePaint);
// //canvas.DrawCircle(DrawRect.CenterX(), DrawRect.CenterY(), DrawRect.Width(), resizerPaint);
//}
//else
//{
Rect viewDrawingRect = new Rect();
context.GetDrawingRect(viewDrawingRect);
outlinePaint.Color = Color.White;// new Color(0XFF, 0xFF, 0x8A, 0x00);
focusPaint.Color = new Color(50, 50, 50, 125);
Path path = new Path();
if (isRound)
{
path.AddCircle(DrawRect.CenterX(), DrawRect.CenterY(), DrawRect.Width() / 2, Path.Direction.Cw);
canvas.ClipPath(path, Region.Op.Difference);
canvas.DrawCircle(viewDrawingRect.CenterX(), viewDrawingRect.CenterY(), viewDrawingRect.Width(), focusPaint);
}
else
{
path.AddRect(new RectF(DrawRect), Path.Direction.Cw);
canvas.ClipPath(path, Region.Op.Difference);
canvas.DrawRect(viewDrawingRect, focusPaint);
}
//canvas.ClipPath(path, Region.Op.Difference);
//if (isRound)
// canvas.DrawCircle(viewDrawingRect.CenterX(), viewDrawingRect.CenterY(), viewDrawingRect.Width(), focusPaint);
//else
// canvas.DrawRect(viewDrawingRect, focusPaint);
canvas.Restore();
canvas.DrawPath(path, outlinePaint);
var resizerTriangle = new Path();
var resizerOffset = 4;
var triangleSize = resizerSize + resizerOffset;
resizerTriangle.MoveTo(DrawRect.Right - resizerOffset, DrawRect.Bottom - triangleSize);
resizerTriangle.LineTo(DrawRect.Right - resizerOffset, DrawRect.Bottom - resizerOffset);
resizerTriangle.LineTo(DrawRect.Right - triangleSize, DrawRect.Bottom - resizerOffset);
resizerPaint.SetStyle(Paint.Style.Fill);
canvas.DrawPath(resizerTriangle, resizerPaint);
if (isRound)
{
// Draw the rectangle around the round cropper
var roundCropperRectangle = new Path();
roundCropperRectangle.MoveTo(DrawRect.Left, DrawRect.Top);
roundCropperRectangle.LineTo(DrawRect.Right, DrawRect.Top);
roundCropperRectangle.LineTo(DrawRect.Right, DrawRect.Bottom);
roundCropperRectangle.LineTo(DrawRect.Left, DrawRect.Bottom);
roundCropperRectangle.LineTo(DrawRect.Left, DrawRect.Top);
resizerPaint.SetStyle(Paint.Style.Stroke);
canvas.DrawPath(roundCropperRectangle, resizerPaint);
}
}
public object ConvertToNative(Geometry geometry)
{
// TODO: Can we keep this object around and reset it?
droidGraphics.Path path = new droidGraphics.Path();
// TODO: Might we also save a non-transformed path and a transformed path? -- No, that fails for GeometryGroup
// Determine what type of Geometry we're dealing with
if (geometry is LineGeometry)
{
LineGeometry lineGeometry = geometry as LineGeometry;
path.MoveTo(PixelsPerDip * (float)lineGeometry.StartPoint.X,
PixelsPerDip * (float)lineGeometry.StartPoint.Y);
path.LineTo(PixelsPerDip * (float)lineGeometry.EndPoint.X,
PixelsPerDip * (float)lineGeometry.EndPoint.Y);
}
else if (geometry is RectangleGeometry)
{
Rect rect = (geometry as RectangleGeometry).Rect;
path.AddRect(PixelsPerDip * (float)rect.Left,
PixelsPerDip * (float)rect.Top,
PixelsPerDip * (float)rect.Right,
PixelsPerDip * (float)rect.Bottom,
droidGraphics.Path.Direction.Cw); // TODO: Check for compatibility!
}
else if (geometry is EllipseGeometry)
{
EllipseGeometry ellipseGeometry = geometry as EllipseGeometry;
path.AddOval(new droidGraphics.RectF(
PixelsPerDip * (float)(ellipseGeometry.Center.X - ellipseGeometry.RadiusX),
PixelsPerDip * (float)(ellipseGeometry.Center.Y - ellipseGeometry.RadiusY),
PixelsPerDip * (float)(ellipseGeometry.Center.X + ellipseGeometry.RadiusX),
PixelsPerDip * (float)(ellipseGeometry.Center.Y + ellipseGeometry.RadiusY)),
droidGraphics.Path.Direction.Cw); // TODO: Check for compatibility!
}
else if (geometry is GeometryGroup)
{
GeometryGroup geometryGroup = geometry as GeometryGroup;
SetFillRule(path, geometryGroup.FillRule);
foreach (Geometry child in geometryGroup.Children)
{
droidGraphics.Path childPath = ConvertToNative(child) as droidGraphics.Path;
path.AddPath(childPath);
}
}
else if (geometry is PathGeometry)
{
PathGeometry pathGeometry = geometry as PathGeometry;
SetFillRule(path, pathGeometry.FillRule);
foreach (PathFigure pathFigure in pathGeometry.Figures)
{
path.MoveTo(PixelsPerDip * (float)pathFigure.StartPoint.X,
PixelsPerDip * (float)pathFigure.StartPoint.Y);
Point lastPoint = pathFigure.StartPoint;
foreach (PathSegment pathSegment in pathFigure.Segments)
{
// LineSegment
if (pathSegment is LineSegment)
{
LineSegment lineSegment = pathSegment as LineSegment;
path.LineTo(PixelsPerDip * (float)lineSegment.Point.X,
PixelsPerDip * (float)lineSegment.Point.Y);
lastPoint = lineSegment.Point;
}
// PolylineSegment
else if (pathSegment is PolyLineSegment)
{
PolyLineSegment polylineSegment = pathSegment as PolyLineSegment;
PointCollection points = polylineSegment.Points;
for (int i = 0; i < points.Count; i++)
{
path.LineTo(PixelsPerDip * (float)points[i].X,
PixelsPerDip * (float)points[i].Y);
}
lastPoint = points[points.Count - 1];
}
// BezierSegment
else if (pathSegment is BezierSegment)
{
BezierSegment bezierSegment = pathSegment as BezierSegment;
path.CubicTo(PixelsPerDip * (float)bezierSegment.Point1.X, PixelsPerDip * (float)bezierSegment.Point1.Y,
PixelsPerDip * (float)bezierSegment.Point2.X, PixelsPerDip * (float)bezierSegment.Point2.Y,
PixelsPerDip * (float)bezierSegment.Point3.X, PixelsPerDip * (float)bezierSegment.Point3.Y);
lastPoint = bezierSegment.Point3;
}
// PolyBezierSegment
else if (pathSegment is PolyBezierSegment)
{
PolyBezierSegment polyBezierSegment = pathSegment as PolyBezierSegment;
PointCollection points = polyBezierSegment.Points;
for (int i = 0; i < points.Count; i += 3)
{
path.CubicTo(PixelsPerDip * (float)points[i + 0].X, PixelsPerDip * (float)points[i + 0].Y,
PixelsPerDip * (float)points[i + 1].X, PixelsPerDip * (float)points[i + 1].Y,
PixelsPerDip * (float)points[i + 2].X, PixelsPerDip * (float)points[i + 2].Y);
}
lastPoint = points[points.Count - 1];
}
// QuadraticBezierSegment
else if (pathSegment is QuadraticBezierSegment)
{
QuadraticBezierSegment bezierSegment = pathSegment as QuadraticBezierSegment;
path.QuadTo(PixelsPerDip * (float)bezierSegment.Point1.X, PixelsPerDip * (float)bezierSegment.Point1.Y,
PixelsPerDip * (float)bezierSegment.Point2.X, PixelsPerDip * (float)bezierSegment.Point2.Y);
lastPoint = bezierSegment.Point2;
}
// PolyQuadraticBezierSegment
else if (pathSegment is PolyQuadraticBezierSegment)
{
PolyQuadraticBezierSegment polyBezierSegment = pathSegment as PolyQuadraticBezierSegment;
PointCollection points = polyBezierSegment.Points;
for (int i = 0; i < points.Count; i += 2)
{
path.QuadTo(PixelsPerDip * (float)points[i + 0].X, PixelsPerDip * (float)points[i + 0].Y,
PixelsPerDip * (float)points[i + 1].X, PixelsPerDip * (float)points[i + 1].Y);
}
lastPoint = points[points.Count - 1];
}
// ArcSegment
else if (pathSegment is ArcSegment)
{
ArcSegment arcSegment = pathSegment as ArcSegment;
List <Point> points = new List <Point>();
Xamarin.Forms.Shapes.Shapes.FlattenArc(points,
lastPoint,
arcSegment.Point,
arcSegment.Size.Width,
arcSegment.Size.Height,
arcSegment.RotationAngle,
arcSegment.IsLargeArc,
arcSegment.SweepDirection == SweepDirection.Counterclockwise,
1);
for (int i = 0; i < points.Count; i++)
{
path.LineTo(PixelsPerDip * (float)points[i].X,
PixelsPerDip * (float)points[i].Y);
}
lastPoint = points[points.Count - 1];
}
}
if (pathFigure.IsClosed)
{
path.Close();
}
}
}
// Apply transform
if (geometry.Transform != null)
{
path.Transform((droidGraphics.Matrix)geometry.Transform.GetNativeObject());
}
return(path);
}
public void AddRect(float x, float y, float width, float height)
{
path.AddRect(x, y, width, height, Android.Graphics.Path.Direction.Cw);
}
