/// <inheritdoc/> public override void Draw(object dc, XQuadraticBezier quadraticBezier, double dx, double dy, ImmutableArray<XProperty> db, XRecord r) { var canvas = dc as SKCanvas; using (SKPaint brush = ToSKPaintBrush(quadraticBezier.Style.Fill)) using (SKPaint pen = ToSKPaintPen(quadraticBezier.Style, _scaleToPage, _sourceDpi, _targetDpi)) using (var path = new SKPath()) { path.MoveTo( _scaleToPage(quadraticBezier.Point1.X + dx), _scaleToPage(quadraticBezier.Point1.Y + dy)); path.QuadTo( _scaleToPage(quadraticBezier.Point2.X + dx), _scaleToPage(quadraticBezier.Point2.Y + dy), _scaleToPage(quadraticBezier.Point3.X + dx), _scaleToPage(quadraticBezier.Point3.Y + dy)); DrawPathInternal(canvas, brush, pen, quadraticBezier.IsStroked, quadraticBezier.IsFilled, path); } }
/// <summary> /// /// </summary> /// <param name="xpg"></param> /// <param name="dx"></param> /// <param name="dy"></param> /// <param name="scale"></param> /// <returns></returns> public static SKPath ToSKPath(this XPathGeometry xpg, double dx, double dy, Func<double, float> scale) { var path = new SKPath(); path.FillType = xpg.FillRule == XFillRule.EvenOdd ? SKPathFillType.EvenOdd : SKPathFillType.Winding; foreach (var xpf in xpg.Figures) { var previous = default(XPoint); // Begin new figure. path.MoveTo( scale(xpf.StartPoint.X + dx), scale(xpf.StartPoint.Y + dy)); previous = xpf.StartPoint; foreach (var segment in xpf.Segments) { if (segment is XArcSegment) { var arcSegment = segment as XArcSegment; path.ArcTo( scale(arcSegment.Size.Width), scale(arcSegment.Size.Height), (float)arcSegment.RotationAngle, arcSegment.IsLargeArc ? SKPathArcSize.Large : SKPathArcSize.Small, arcSegment.SweepDirection == XSweepDirection.Clockwise ? SKPathDirection.Clockwise : SKPathDirection.CounterClockwise, scale(arcSegment.Point.X + dx), scale(arcSegment.Point.Y + dy)); previous = arcSegment.Point; } else if (segment is XCubicBezierSegment) { var cubicBezierSegment = segment as XCubicBezierSegment; path.CubicTo( scale(cubicBezierSegment.Point1.X + dx), scale(cubicBezierSegment.Point1.Y + dy), scale(cubicBezierSegment.Point2.X + dx), scale(cubicBezierSegment.Point2.Y + dy), scale(cubicBezierSegment.Point3.X + dx), scale(cubicBezierSegment.Point3.Y + dy)); previous = cubicBezierSegment.Point3; } else if (segment is XLineSegment) { var lineSegment = segment as XLineSegment; path.LineTo( scale(lineSegment.Point.X + dx), scale(lineSegment.Point.Y + dy)); previous = lineSegment.Point; } else if (segment is XPolyCubicBezierSegment) { var polyCubicBezierSegment = segment as XPolyCubicBezierSegment; if (polyCubicBezierSegment.Points.Length >= 3) { path.CubicTo( scale(polyCubicBezierSegment.Points[0].X + dx), scale(polyCubicBezierSegment.Points[0].Y + dy), scale(polyCubicBezierSegment.Points[1].X + dx), scale(polyCubicBezierSegment.Points[1].Y + dy), scale(polyCubicBezierSegment.Points[2].X + dx), scale(polyCubicBezierSegment.Points[2].Y + dy)); previous = polyCubicBezierSegment.Points[2]; } if (polyCubicBezierSegment.Points.Length > 3 && polyCubicBezierSegment.Points.Length % 3 == 0) { for (int i = 3; i < polyCubicBezierSegment.Points.Length; i += 3) { path.CubicTo( scale(polyCubicBezierSegment.Points[i].X + dx), scale(polyCubicBezierSegment.Points[i].Y + dy), scale(polyCubicBezierSegment.Points[i + 1].X + dx), scale(polyCubicBezierSegment.Points[i + 1].Y + dy), scale(polyCubicBezierSegment.Points[i + 2].X + dx), scale(polyCubicBezierSegment.Points[i + 2].Y + dy)); previous = polyCubicBezierSegment.Points[i + 2]; } } } else if (segment is XPolyLineSegment) { var polyLineSegment = segment as XPolyLineSegment; if (polyLineSegment.Points.Length >= 1) { path.LineTo( scale(polyLineSegment.Points[0].X + dx), scale(polyLineSegment.Points[0].Y + dy)); previous = polyLineSegment.Points[0]; } if (polyLineSegment.Points.Length > 1) { for (int i = 1; i < polyLineSegment.Points.Length; i++) { path.LineTo( scale(polyLineSegment.Points[i].X + dx), scale(polyLineSegment.Points[i].Y + dy)); previous = polyLineSegment.Points[i]; } } } else if (segment is XPolyQuadraticBezierSegment) { var polyQuadraticSegment = segment as XPolyQuadraticBezierSegment; if (polyQuadraticSegment.Points.Length >= 2) { path.QuadTo( scale(polyQuadraticSegment.Points[0].X + dx), scale(polyQuadraticSegment.Points[0].Y + dy), scale(polyQuadraticSegment.Points[1].X + dx), scale(polyQuadraticSegment.Points[1].Y + dy)); previous = polyQuadraticSegment.Points[1]; } if (polyQuadraticSegment.Points.Length > 2 && polyQuadraticSegment.Points.Length % 2 == 0) { for (int i = 3; i < polyQuadraticSegment.Points.Length; i += 3) { path.QuadTo( scale(polyQuadraticSegment.Points[i].X + dx), scale(polyQuadraticSegment.Points[i].Y + dy), scale(polyQuadraticSegment.Points[i + 1].X + dx), scale(polyQuadraticSegment.Points[i + 1].Y + dy)); previous = polyQuadraticSegment.Points[i + 1]; } } } else if (segment is XQuadraticBezierSegment) { var quadraticBezierSegment = segment as XQuadraticBezierSegment; path.QuadTo( scale(quadraticBezierSegment.Point1.X + dx), scale(quadraticBezierSegment.Point1.Y + dy), scale(quadraticBezierSegment.Point2.X + dx), scale(quadraticBezierSegment.Point2.Y + dy)); previous = quadraticBezierSegment.Point2; } else { throw new NotSupportedException("Not supported segment type: " + segment.GetType()); } } if (xpf.IsClosed) { path.Close(); } } return path; }