/// <summary>
/// Private helper to render a path figure to the SGC
/// </summary>
private static void AddFigureToStreamGeometryContext(StreamGeometryContext context, List<Point> points, bool isBezierFigure)
{
Debug.Assert(context != null);
Debug.Assert(points != null);
Debug.Assert(points.Count > 0);
context.BeginFigure(points[points.Count - 1], //start point
true, //isFilled
true); //IsClosed
if (isBezierFigure)
{
context.PolyBezierTo(points,
true, //isStroked
true); //isSmoothJoin
}
else
{
context.PolyLineTo(points,
true, //isStroked
true); //isSmoothJoin
}
}
public static void DrawFigure(StreamGeometryContext ctx, PathFigure figure)
{
ctx.BeginFigure(figure.StartPoint, figure.IsFilled, figure.IsClosed);
foreach (var segment in figure.Segments)
{
var lineSegment = segment as WpfLineSegment;
if (lineSegment != null) { ctx.LineTo(lineSegment.Point, lineSegment.IsStroked, lineSegment.IsSmoothJoin); continue; }
var bezierSegment = segment as BezierSegment;
if (bezierSegment != null) { ctx.BezierTo(bezierSegment.Point1, bezierSegment.Point2, bezierSegment.Point3, bezierSegment.IsStroked, bezierSegment.IsSmoothJoin); continue; }
var quadraticSegment = segment as QuadraticBezierSegment;
if (quadraticSegment != null) { ctx.QuadraticBezierTo(quadraticSegment.Point1, quadraticSegment.Point2, quadraticSegment.IsStroked, quadraticSegment.IsSmoothJoin); continue; }
var polyLineSegment = segment as PolyLineSegment;
if (polyLineSegment != null) { ctx.PolyLineTo(polyLineSegment.Points, polyLineSegment.IsStroked, polyLineSegment.IsSmoothJoin); continue; }
var polyBezierSegment = segment as PolyBezierSegment;
if (polyBezierSegment != null) { ctx.PolyBezierTo(polyBezierSegment.Points, polyBezierSegment.IsStroked, polyBezierSegment.IsSmoothJoin); continue; }
var polyQuadraticSegment = segment as PolyQuadraticBezierSegment;
if (polyQuadraticSegment != null) { ctx.PolyQuadraticBezierTo(polyQuadraticSegment.Points, polyQuadraticSegment.IsStroked, polyQuadraticSegment.IsSmoothJoin); continue; }
var arcSegment = segment as ArcSegment;
if (arcSegment != null) { ctx.ArcTo(arcSegment.Point, arcSegment.Size, arcSegment.RotationAngle, arcSegment.IsLargeArc, arcSegment.SweepDirection, arcSegment.IsStroked, arcSegment.IsSmoothJoin); continue; }
}
}
/// <summary>
/// SerializeData - Serialize the contents of this Segment to the provided context.
/// </summary>
internal override void SerializeData(StreamGeometryContext ctx)
{
ctx.PolyBezierTo(Points, IsStroked, IsSmoothJoin);
}
/// <summary>
/// SerializeData - Serialize the contents of this Segment to the provided context.
/// </summary>
internal override void SerializeData(StreamGeometryContext ctx)
{
ctx.PolyBezierTo(Points, IsStroked, IsSmoothJoin);
}
