public void BeginFigure_Adds_New_Figure()
{
var geometry = new XPathGeometry();
var target = new XPathGeometryContext(geometry);
Assert.Equal(0, geometry.Figures.Length);
target.BeginFigure(new XPoint());
Assert.Equal(1, geometry.Figures.Length);
Assert.True(geometry.Figures[0].IsFilled);
Assert.True(geometry.Figures[0].IsClosed);
target.SetClosedState(false);
Assert.False(geometry.Figures[0].IsClosed);
}
public void CubicBezierTo_Adds_New_XCubicBezierSegment()
{
var geometry = new XPathGeometry();
var target = new XPathGeometryContext(geometry);
target.BeginFigure(new XPoint());
Assert.Equal(0, geometry.Figures[0].Segments.Length);
target.CubicBezierTo(new XPoint(), new XPoint(), new XPoint());
Assert.Equal(1, geometry.Figures[0].Segments.Length);
var segment = geometry.Figures[0].Segments[0];
Assert.IsType <XCubicBezierSegment>(segment);
Assert.True(segment.IsStroked);
Assert.True(segment.IsSmoothJoin);
}
public void PolyQuadraticBezierTo_Adds_New_XPolyQuadraticBezierSegment()
{
var geometry = new XPathGeometry();
var target = new XPathGeometryContext(geometry);
target.BeginFigure(new XPoint());
Assert.Equal(0, geometry.Figures[0].Segments.Length);
target.PolyQuadraticBezierTo(ImmutableArray.Create <XPoint>(new XPoint(), new XPoint(), new XPoint()));
Assert.Equal(1, geometry.Figures[0].Segments.Length);
var segment = geometry.Figures[0].Segments[0];
Assert.IsType <XPolyQuadraticBezierSegment>(segment);
Assert.True(segment.IsStroked);
Assert.True(segment.IsSmoothJoin);
}
/// <summary>
/// Parse a mini-language string representation of the <see cref="XPathGeometry"/>.
/// </summary>
/// <remarks>
/// The path geometry syntax may start with a "wsp*Fwsp*(0|1)" which indicate the winding mode (F0 is EvenOdd while F1 is NonZero).
/// </remarks>
/// <param name="source">The string with geometry data.</param>
/// <returns>The new instance of the <see cref="XPathGeometry"/> class.</returns>
public static XPathGeometry Parse(string source)
{
var fillRule = XFillRule.EvenOdd;
var geometry = XPathGeometry.Create(ImmutableArray.Create<XPathFigure>(), fillRule);
if (source != null)
{
int curIndex = 0;
while ((curIndex < source.Length) && Char.IsWhiteSpace(source, curIndex))
{
curIndex++;
}
if (curIndex < source.Length)
{
if (source[curIndex] == 'F')
{
curIndex++;
while ((curIndex < source.Length) && Char.IsWhiteSpace(source, curIndex))
{
curIndex++;
}
if ((curIndex == source.Length) || ((source[curIndex] != '0') && (source[curIndex] != '1')))
{
throw new FormatException("Illegal token.");
}
fillRule = source[curIndex] == '0' ? XFillRule.EvenOdd : XFillRule.Nonzero;
curIndex++;
}
}
var parser = new SvgToXPathGeometryParser();
var context = new XPathGeometryContext(geometry);
parser.Parse(context, source, curIndex);
}
geometry.FillRule = fillRule;
return geometry;
}
/// <summary>
/// Parse a mini-language string representation of the <see cref="XPathGeometry"/>.
/// </summary>
/// <remarks>
/// The path geometry syntax may start with a "wsp*Fwsp*(0|1)" which indicate the winding mode (F0 is EvenOdd while F1 is NonZero).
/// </remarks>
/// <param name="source">The string with geometry data.</param>
/// <returns>The new instance of the <see cref="XPathGeometry"/> class.</returns>
public static XPathGeometry Parse(string source)
{
var fillRule = XFillRule.EvenOdd;
var geometry = XPathGeometry.Create(ImmutableArray.Create <XPathFigure>(), fillRule);
if (source != null)
{
int curIndex = 0;
while ((curIndex < source.Length) && Char.IsWhiteSpace(source, curIndex))
{
curIndex++;
}
if (curIndex < source.Length)
{
if (source[curIndex] == 'F')
{
curIndex++;
while ((curIndex < source.Length) && Char.IsWhiteSpace(source, curIndex))
{
curIndex++;
}
if ((curIndex == source.Length) || ((source[curIndex] != '0') && (source[curIndex] != '1')))
{
throw new FormatException("Illegal token.");
}
fillRule = source[curIndex] == '0' ? XFillRule.EvenOdd : XFillRule.Nonzero;
curIndex++;
}
}
var parser = new SvgToXPathGeometryParser();
var context = new XPathGeometryContext(geometry);
parser.Parse(context, source, curIndex);
}
geometry.FillRule = fillRule;
return(geometry);
}
/// <summary>
///
/// </summary>
/// <param name="pg"></param>
/// <param name="dx"></param>
/// <param name="dy"></param>
/// <returns></returns>
public static XPathGeometry ToXPathGeometry(this PathGeometry pg, double dx, double dy)
{
var geometry = XPathGeometry.Create(
ImmutableArray.Create <XPathFigure>(),
pg.FillRule == FillRule.EvenOdd ? XFillRule.EvenOdd : XFillRule.Nonzero);
var context = new XPathGeometryContext(geometry);
foreach (var pf in pg.Figures)
{
context.BeginFigure(
XPoint.Create(pf.StartPoint.X + dx, pf.StartPoint.Y + dy),
pf.IsFilled,
pf.IsClosed);
foreach (var segment in pf.Segments)
{
if (segment is ArcSegment)
{
var arcSegment = segment as ArcSegment;
context.ArcTo(
XPoint.Create(arcSegment.Point.X + dx, arcSegment.Point.Y + dy),
XPathSize.Create(arcSegment.Size.Width, arcSegment.Size.Height),
arcSegment.RotationAngle,
arcSegment.IsLargeArc,
arcSegment.SweepDirection == SweepDirection.Clockwise ? XSweepDirection.Clockwise : XSweepDirection.Counterclockwise,
arcSegment.IsStroked,
arcSegment.IsSmoothJoin);
}
else if (segment is BezierSegment)
{
var cubicBezierSegment = segment as BezierSegment;
context.CubicBezierTo(
XPoint.Create(cubicBezierSegment.Point1.X + dx, cubicBezierSegment.Point1.Y + dy),
XPoint.Create(cubicBezierSegment.Point2.X + dx, cubicBezierSegment.Point2.Y + dy),
XPoint.Create(cubicBezierSegment.Point3.X + dx, cubicBezierSegment.Point3.Y + dy),
cubicBezierSegment.IsStroked,
cubicBezierSegment.IsSmoothJoin);
}
else if (segment is LineSegment)
{
var lineSegment = segment as LineSegment;
context.LineTo(
XPoint.Create(lineSegment.Point.X + dx, lineSegment.Point.Y + dy),
lineSegment.IsStroked,
lineSegment.IsSmoothJoin);
}
else if (segment is PolyBezierSegment)
{
var polyCubicBezierSegment = segment as PolyBezierSegment;
context.PolyCubicBezierTo(
ToXPoints(polyCubicBezierSegment.Points, dx, dy),
polyCubicBezierSegment.IsStroked,
polyCubicBezierSegment.IsSmoothJoin);
}
else if (segment is PolyLineSegment)
{
var polyLineSegment = segment as PolyLineSegment;
context.PolyLineTo(
ToXPoints(polyLineSegment.Points, dx, dy),
polyLineSegment.IsStroked,
polyLineSegment.IsSmoothJoin);
}
else if (segment is PolyQuadraticBezierSegment)
{
var polyQuadraticSegment = segment as PolyQuadraticBezierSegment;
context.PolyQuadraticBezierTo(
ToXPoints(polyQuadraticSegment.Points, dx, dy),
polyQuadraticSegment.IsStroked,
polyQuadraticSegment.IsSmoothJoin);
}
else if (segment is QuadraticBezierSegment)
{
var quadraticBezierSegment = segment as QuadraticBezierSegment;
context.QuadraticBezierTo(
XPoint.Create(quadraticBezierSegment.Point1.X + dx, quadraticBezierSegment.Point1.Y + dy),
XPoint.Create(quadraticBezierSegment.Point2.X + dx, quadraticBezierSegment.Point2.Y + dy),
quadraticBezierSegment.IsStroked,
quadraticBezierSegment.IsSmoothJoin);
}
else
{
throw new NotSupportedException("Not supported segment type: " + segment.GetType());
}
}
}
return(geometry);
}
public void Inherits_From_XGeometryContext()
{
var target = new XPathGeometryContext(new XPathGeometry());
Assert.True(target is XGeometryContext);
}