internal SvgUseElement(INode parent, XmlElement element)
: base(parent, element)
{
this._stylableHelper = new SvgStylableHelper(this, element);
this._transformableHelper = new SvgTransformableHelper(element);
var nan = new SvgLength(SvgLength.SvgLengthType.Unknown, float.NaN);
this.X = element.ParseCoordinate("x", nan);
this.Y = element.ParseCoordinate("y", nan);
this.Width = element.ParseLength("width", nan);
this.Height = element.ParseLength("height", nan);
this.Href = element.GetAttribute("xlink:href").Substring(1);
var child = (SvgElement)this.OwnerDocument.GetElementById(this.Href).CloneNode(true);
if (child.GetType() == typeof(SvgSymbolElement))
{
throw new NotImplementedException();
}
else if (child.GetType() == typeof(SvgRectElement))
{
var casted = (SvgRectElement)child;
if (this.Width.UnitType != SvgLength.SvgLengthType.Unknown) casted.Width = this.Width;
if (this.Height.UnitType != SvgLength.SvgLengthType.Unknown) casted.Height = this.Height;
}
this.InstanceRoot = child;
if (this.X.UnitType != SvgLength.SvgLengthType.Unknown && this.Y.UnitType != SvgLength.SvgLengthType.Unknown)
{
this.Transform.Add(SvgTransform.CreateTranslate(
this.X.UnitType != SvgLength.SvgLengthType.Unknown ? this.X.ValueAsPixel : 0.0F,
this.Y.UnitType != SvgLength.SvgLengthType.Unknown ? this.Y.ValueAsPixel : 0.0F));
}
}
public static SvgLength ParseLength(this XmlElement element, string attributeName, SvgLength defaultValue)
{
var attribute = element.GetAttribute(attributeName);
if (string.IsNullOrEmpty(attribute)) return defaultValue;
return element.ParseLength(attributeName);
}
public float ConvertX(SvgLength length)
{
if (length.UnitType == SvgLength.SvgLengthType.Percentage)
{
return (float)this.CanvasSize.X * length.Value / 100.0F;
}
return this.Convert(length);
}
public static bool TryParseLength(this XmlElement element, string attributeName, out SvgLength result)
{
result = 0.0F;
var attribute = element.GetAttribute(attributeName);
if (string.IsNullOrEmpty(attribute)) return false;
var lengthText = element.GetAttribute(attributeName);
return SvgLength.TryParse(lengthText, true, out result);
}
public float Convert(SvgLength length)
{
switch (length.UnitType)
{
case SvgLength.SvgLengthType.Percentage:
case SvgLength.SvgLengthType.Ems:
case SvgLength.SvgLengthType.Exs:
throw new NotSupportedException();
}
return length.ValueAsPixel;
}
public void TestPercentValues()
{
length = new SvgLength(elm, "test", SvgLengthDirection.Horizontal, "10%");
Assert.AreEqual(20, length.Value);
Assert.AreEqual(SvgLengthType.Percentage, length.UnitType);
Assert.AreEqual(10, length.ValueInSpecifiedUnits);
Assert.AreEqual("10%", length.ValueAsString);
length = new SvgLength(elm, "test", SvgLengthDirection.Vertical, "20%");
Assert.AreEqual(60, length.Value);
length = new SvgLength(elm, "test", SvgLengthDirection.Viewport, "10%");
Assert.AreEqual(Math.Sqrt(200 * 200 + 300 * 300) / Math.Sqrt(2) * 0.1D, length.Value);
}
private double GetStrokeWidth()
{
string strokeWidth = _element.GetPropertyValue("stroke-width");
if (strokeWidth.Length == 0)
{
strokeWidth = "1px";
}
SvgLength strokeWidthLength = new SvgLength(_element, "stroke-width",
SvgLengthDirection.Viewport, strokeWidth);
return(strokeWidthLength.Value);
}
private float GetComputedFontSize(SvgTextContentElement element)
{
string str = element.GetPropertyValue("font-size");
float fontSize = 12;
if (_decimalNumber.IsMatch(str))
{
// svg length
var fontLength = new SvgLength(element, "font-size", SvgLengthDirection.Viewport, str, "10px");
fontSize = (float)fontLength.Value;
}
return(fontSize);
}
private double GetDashOffset(double strokeWidth)
{
string dashOffset = _element.GetPropertyValue("stroke-dashoffset");
if (dashOffset.Length > 0)
{
//divide by strokeWidth to take care of the difference between Svg and GDI+
SvgLength dashOffsetLength = new SvgLength(_element, "stroke-dashoffset",
SvgLengthDirection.Viewport, dashOffset);
return(dashOffsetLength.Value);
}
return(0);
}
public static double GetComputedFontSize(SvgTextContentElement element)
{
string str = element.GetPropertyValue(CssConstants.PropFontSize);
double fontSize = 12;
if (_decimalNumber.IsMatch(str))
{
// svg length
var fontLength = new SvgLength(element, CssConstants.PropFontSize, SvgLengthDirection.Viewport, str, "10px");
fontSize = fontLength.Value;
}
return(fontSize);
}
public static double GetComputedFontSize(SvgTextContentElement element)
{
string str = element.GetPropertyValue("font-size");
double fontSize = 12;
if (_decimalNumber.IsMatch(str))
{
// svg length
fontSize = new SvgLength(element, "font-size",
SvgLengthDirection.Viewport, str, "10px").Value;
}
return(fontSize);
}
public static bool TryGetDashOffset(SvgStyleableElement element, out double offset)
{
string dashOffset = element.GetPropertyValue("stroke-dashoffset");
if (dashOffset.Length > 0)
{
//divide by strokeWidth to take care of the difference between Svg and GDI+
SvgLength dashOffsetLength = new SvgLength(element, "stroke-dashoffset",
SvgLengthDirection.Viewport, dashOffset);
offset = dashOffsetLength.Value;
return(true);
}
offset = 0;
return(false);
}
public static bool TryParseLength(this XmlElement element, string attributeName, out SvgLength result)
{
result = 0.0F;
var attribute = element.GetAttribute(attributeName);
if (string.IsNullOrEmpty(attribute))
{
return(false);
}
var lengthText = element.GetAttribute(attributeName);
return(SvgLength.TryParse(lengthText, true, out result));
}
public void TestScientificValues()
{
length = new SvgLength(elm, "test", SvgLengthDirection.Horizontal, "2E3px");
Assert.AreEqual(2000, length.Value);
Assert.AreEqual(SvgLengthType.Px, length.UnitType);
Assert.AreEqual(2000, length.ValueInSpecifiedUnits);
Assert.AreEqual("2000px", length.ValueAsString);
length = new SvgLength(elm, "test", SvgLengthDirection.Horizontal, "1E-1px");
Assert.IsTrue(Math.Abs(0.1D - length.Value) < 0.0001, "Value");
Assert.AreEqual(SvgLengthType.Px, length.UnitType);
Assert.IsTrue(Math.Abs(0.1D - length.ValueInSpecifiedUnits) < 0.0001, "ValueInSpecifiedUnits");
//Assert.AreEqual("0.1px", length.ValueAsString);
}
public static bool TryGetStrokeWidth(SvgStyleableElement element, out double strokeWidth)
{
string propValue = element.GetPropertyValue("stroke-width");
if (string.IsNullOrWhiteSpace(propValue))
{
strokeWidth = 1d;
return(false);
}
SvgLength strokeWidthLength = new SvgLength(element, "stroke-width", SvgLengthDirection.Viewport, propValue);
strokeWidth = strokeWidthLength.Value;
return(true);
}
private static double GetComputedLineHeight(SvgTextContentElement element)
{
string str = element.GetPropertyValue("line-height");
double lineHeight = 13;
if (str.EndsWith("%", StringComparison.Ordinal))
{
// percentage of inherited value
}
else if (_decimalNumber.IsMatch(str))
{
// svg length
lineHeight = new SvgLength(element, "line-height",
SvgLengthDirection.Viewport, str, "13px").Value;
}
return(lineHeight);
}
protected double CalcLengthUnit(SvgLength length, SvgLengthDirection dir, Rect bounds)
{
double calcValue = length.ValueInSpecifiedUnits;
if (dir == SvgLengthDirection.Horizontal)
{
calcValue *= bounds.Width;
}
else
{
calcValue *= bounds.Height;
}
if (length.UnitType == SvgLengthType.Percentage)
{
calcValue /= 100F;
}
return(calcValue);
}
public void CanLoadCircleAttributes()
{
// Arrange
var cx = new SvgLength(6.2f, SvgUnit.Inch);
var cy = new SvgLength(316, SvgUnit.User);
var r = new SvgLength(54, SvgUnit.Inch);
var xml = ElementBuilder.Create("circle")
.AddAttribute("cx", cx.ToString())
.AddAttribute("cy", cy.ToString())
.AddAttribute("r", r.ToString());
// Act
var circle = Svg.FromString <SvgCircleElement>(xml.ToString());
// Assert
circle.CX.Should().Be(cx);
circle.CY.Should().Be(cy);
circle.R.Should().Be(r);
}
internal SvgUseElement(INode parent, XmlElement element)
: base(parent, element)
{
this._stylableHelper = new SvgStylableHelper(this, element);
this._transformableHelper = new SvgTransformableHelper(element);
var nan = new SvgLength(SvgLength.SvgLengthType.Unknown, float.NaN);
this.X = element.ParseCoordinate("x", nan);
this.Y = element.ParseCoordinate("y", nan);
this.Width = element.ParseLength("width", nan);
this.Height = element.ParseLength("height", nan);
this.Href = element.GetAttribute("xlink:href").Substring(1);
var child = (SvgElement)this.OwnerDocument.GetElementById(this.Href).CloneNode(true);
if (child.GetType() == typeof(SvgSymbolElement))
{
throw new NotImplementedException();
}
else if (child.GetType() == typeof(SvgRectElement))
{
var casted = (SvgRectElement)child;
if (this.Width.UnitType != SvgLength.SvgLengthType.Unknown)
{
casted.Width = this.Width;
}
if (this.Height.UnitType != SvgLength.SvgLengthType.Unknown)
{
casted.Height = this.Height;
}
}
this.InstanceRoot = child;
if (this.X.UnitType != SvgLength.SvgLengthType.Unknown && this.Y.UnitType != SvgLength.SvgLengthType.Unknown)
{
this.Transform.Add(SvgTransform.CreateTranslate(
this.X.UnitType != SvgLength.SvgLengthType.Unknown ? this.X.ValueAsPixel : 0.0F,
this.Y.UnitType != SvgLength.SvgLengthType.Unknown ? this.Y.ValueAsPixel : 0.0F));
}
}
internal SvgUseElement(INode parent, XmlElement element)
: base(parent, element)
{
this._stylableHelper = new SvgStylableHelper(this, element);
this._transformableHelper = new SvgTransformableHelper(element);
var nan = new SvgLength(SvgLength.SvgLengthType.Unknown, float.NaN);
this.X = element.ParseCoordinate("x", nan);
this.Y = element.ParseCoordinate("y", nan);
this.Width = element.ParseLength("width", nan);
this.Height = element.ParseLength("height", nan);
this.Href = element.GetAttributeNS("http://www.w3.org/1999/xlink", "href").Substring(1);
this._instanceRoot = new Lazy <SvgElement>(this.CreateInstanceRoot, true);
if (this.X.UnitType != SvgLength.SvgLengthType.Unknown && this.Y.UnitType != SvgLength.SvgLengthType.Unknown)
{
this.Transform.Add(SvgTransform.CreateTranslate(
this.X.UnitType != SvgLength.SvgLengthType.Unknown ? this.X.ValueAsPixel : 0.0F,
this.Y.UnitType != SvgLength.SvgLengthType.Unknown ? this.Y.ValueAsPixel : 0.0F));
}
}
public void CanLoadLineAttributes()
{
// Arrange
var x1 = new SvgLength(6.2f, SvgUnit.Inch);
var y1 = new SvgLength(316, SvgUnit.User);
var x2 = new SvgLength(54, SvgUnit.Inch);
var y2 = new SvgLength(45, SvgUnit.Inch);
var xml = ElementBuilder.Create("line")
.AddAttribute("x1", x1.ToString())
.AddAttribute("y1", y1.ToString())
.AddAttribute("x2", x2.ToString())
.AddAttribute("y2", y2.ToString());
// Act
var line = Svg.FromString <SvgLineElement>(xml.ToString());
// Assert
line.X1.Should().Be(x1);
line.Y1.Should().Be(y1);
line.X2.Should().Be(x2);
line.Y2.Should().Be(y2);
}
public void CanLoadEllipseAttributes()
{
// Arrange
var cx = new SvgLength(6.2f, SvgUnit.Inch);
var cy = new SvgLength(316, SvgUnit.User);
var rx = new SvgLength(54, SvgUnit.Inch);
var ry = new SvgLength(45, SvgUnit.Inch);
var xml = ElementBuilder.Create("ellipse")
.AddAttribute("cx", cx.ToString())
.AddAttribute("cy", cy.ToString())
.AddAttribute("rx", rx.ToString())
.AddAttribute("ry", ry.ToString());
// Act
var ellipse = Svg.FromString <SvgEllipseElement>(xml.ToString());
// Assert
ellipse.CX.Should().Be(cx);
ellipse.CY.Should().Be(cy);
ellipse.RX.Should().Be(rx);
ellipse.RY.Should().Be(ry);
}
private float CalcPatternUnit(SvgLength length, SvgLengthDirection dir, RectangleF bounds)
{
if (_patternElement.PatternUnits.AnimVal.Equals((ushort)SvgUnitType.UserSpaceOnUse))
{
return((float)length.Value);
}
float calcValue = (float)length.ValueInSpecifiedUnits;
if (dir == SvgLengthDirection.Horizontal)
{
calcValue *= bounds.Width;
}
else
{
calcValue *= bounds.Height;
}
if (length.UnitType == SvgLengthType.Percentage)
{
calcValue /= 100F;
}
return(calcValue);
}
private double CalcPatternUnit(SvgLength length, SvgLengthDirection dir, Rect bounds)
{
if (_patternElement.PatternUnits.AnimVal.Equals((ushort)SvgUnitType.UserSpaceOnUse))
{
_isUserSpace = true;
return(length.Value);
}
double calcValue = length.ValueInSpecifiedUnits;
if (dir == SvgLengthDirection.Horizontal)
{
calcValue *= bounds.Width;
}
else
{
calcValue *= bounds.Height;
}
if (length.UnitType == SvgLengthType.Percentage)
{
calcValue /= 100F;
}
return(calcValue);
}
public void RenderMarker0(WpfDrawingRenderer renderer, WpfDrawingContext gr,
SvgMarkerPosition markerPos, SvgStyleableElement refElement)
{
//PathGeometry g;
//g.GetPointAtFractionLength(
ISharpMarkerHost markerHostElm = (ISharpMarkerHost)refElement;
SvgMarkerElement markerElm = (SvgMarkerElement)_svgElement;
SvgPointF[] vertexPositions = markerHostElm.MarkerPositions;
int start;
int len;
// Choose which part of the position array to use
switch (markerPos)
{
case SvgMarkerPosition.Start:
start = 0;
len = 1;
break;
case SvgMarkerPosition.Mid:
start = 1;
len = vertexPositions.Length - 2;
break;
default:
// == MarkerPosition.End
start = vertexPositions.Length - 1;
len = 1;
break;
}
for (int i = start; i < start + len; i++)
{
SvgPointF point = vertexPositions[i];
Matrix m = GetTransformMatrix(_svgElement);
//GraphicsContainer gc = gr.BeginContainer();
this.BeforeRender(renderer);
//gr.TranslateTransform(point.X, point.Y);
//PAUL:
//m.Translate(point.X, point.Y);
if (markerElm.OrientType.AnimVal.Equals((ushort)SvgMarkerOrient.Angle))
{
m.Rotate(markerElm.OrientAngle.AnimVal.Value);
//gr.RotateTransform((double)markerElm.OrientAngle.AnimVal.Value);
}
else
{
double angle;
switch (markerPos)
{
case SvgMarkerPosition.Start:
angle = markerHostElm.GetStartAngle(i + 1);
break;
case SvgMarkerPosition.Mid:
//angle = (markerHostElm.GetEndAngle(i) + markerHostElm.GetStartAngle(i + 1)) / 2;
angle = SvgNumber.CalcAngleBisection(markerHostElm.GetEndAngle(i), markerHostElm.GetStartAngle(i + 1));
break;
default:
angle = markerHostElm.GetEndAngle(i);
break;
}
//gr.RotateTransform(angle);
m.Rotate(angle);
}
if (markerElm.MarkerUnits.AnimVal.Equals((ushort)SvgMarkerUnit.StrokeWidth))
{
string propValue = refElement.GetPropertyValue("stroke-width");
if (propValue.Length == 0)
{
propValue = "1";
}
SvgLength strokeWidthLength = new SvgLength("stroke-width", propValue, refElement, SvgLengthDirection.Viewport);
double strokeWidth = strokeWidthLength.Value;
//gr.ScaleTransform(strokeWidth, strokeWidth);
m.Scale(strokeWidth, strokeWidth);
}
SvgPreserveAspectRatio spar = (SvgPreserveAspectRatio)markerElm.PreserveAspectRatio.AnimVal;
double[] translateAndScale = spar.FitToViewBox(
(SvgRect)markerElm.ViewBox.AnimVal, new SvgRect(0, 0,
markerElm.MarkerWidth.AnimVal.Value, markerElm.MarkerHeight.AnimVal.Value));
//PAUL:
//m.Translate(-(double)markerElm.RefX.AnimVal.Value * translateAndScale[2], -(double)markerElm.RefY.AnimVal.Value * translateAndScale[3]);
//PAUL:
m.Scale(translateAndScale[2], translateAndScale[3]);
m.Translate(point.X, point.Y);
//Matrix oldTransform = TransformMatrix;
//TransformMatrix = m;
//try
//{
//newTransform.Append(m);
//TransformGroup tg = new TransformGroup();
//renderer.Canvas.re
//gr.TranslateTransform(
// -(double)markerElm.RefX.AnimVal.Value * translateAndScale[2],
// -(double)markerElm.RefY.AnimVal.Value * translateAndScale[3]
// );
//gr.ScaleTransform(translateAndScale[2], translateAndScale[3]);
renderer.RenderChildren(markerElm);
// markerElm.RenderChildren(renderer);
//}
//finally
//{
// TransformMatrix = oldTransform;
//}
// //gr.EndContainer(gc);
_matrix = m;
this.Render(renderer);
//gr.EndContainer(gc);
this.AfterRender(renderer);
}
}
public void RenderMarker2(WpfDrawingRenderer renderer, WpfDrawingContext gr,
SvgMarkerPosition markerPos, SvgStyleableElement refElement)
{
ISharpMarkerHost markerHostElm = (ISharpMarkerHost)refElement;
SvgMarkerElement markerElm = (SvgMarkerElement)_svgElement;
SvgPointF[] vertexPositions = markerHostElm.MarkerPositions;
int start;
int len;
// Choose which part of the position array to use
switch (markerPos)
{
case SvgMarkerPosition.Start:
start = 0;
len = 1;
break;
case SvgMarkerPosition.Mid:
start = 1;
len = vertexPositions.Length - 2;
break;
default:
// == MarkerPosition.End
start = vertexPositions.Length - 1;
len = 1;
break;
}
for (int i = start; i < start + len; i++)
{
SvgPointF point = vertexPositions[i];
//GdiGraphicsContainer gc = gr.BeginContainer();
this.BeforeRender(renderer);
//Matrix matrix = Matrix.Identity;
Matrix matrix = GetTransformMatrix(_svgElement);
if (markerElm.OrientType.AnimVal.Equals((ushort)SvgMarkerOrient.Angle))
{
matrix.Rotate(markerElm.OrientAngle.AnimVal.Value);
}
else
{
double angle = 0;
switch (markerPos)
{
case SvgMarkerPosition.Start:
angle = markerHostElm.GetStartAngle(i + 1);
break;
case SvgMarkerPosition.Mid:
//angle = (markerHostElm.GetEndAngle(i) + markerHostElm.GetStartAngle(i + 1)) / 2;
angle = SvgNumber.CalcAngleBisection(markerHostElm.GetEndAngle(i), markerHostElm.GetStartAngle(i + 1));
break;
default:
angle = markerHostElm.GetEndAngle(i);
break;
}
matrix.Rotate(angle);
}
if (markerElm.MarkerUnits.AnimVal.Equals((ushort)SvgMarkerUnit.StrokeWidth))
{
SvgLength strokeWidthLength = new SvgLength(refElement,
"stroke-width", SvgLengthSource.Css, SvgLengthDirection.Viewport, "1");
double strokeWidth = strokeWidthLength.Value;
matrix.Scale(strokeWidth, strokeWidth);
}
SvgPreserveAspectRatio spar =
(SvgPreserveAspectRatio)markerElm.PreserveAspectRatio.AnimVal;
double[] translateAndScale = spar.FitToViewBox((SvgRect)markerElm.ViewBox.AnimVal,
new SvgRect(0, 0, markerElm.MarkerWidth.AnimVal.Value,
markerElm.MarkerHeight.AnimVal.Value));
matrix.Translate(-markerElm.RefX.AnimVal.Value * translateAndScale[2],
-markerElm.RefY.AnimVal.Value * translateAndScale[3]);
matrix.Scale(translateAndScale[2], translateAndScale[3]);
matrix.Translate(point.X, point.Y);
_matrix = matrix;
this.Render(renderer);
//Clip(gr);
renderer.RenderChildren(markerElm);
//gr.EndContainer(gc);
this.AfterRender(renderer);
}
}
public SvgStopElement(SvgLength num, SvgColor col)
{
Offset = num;
Style.Set("stop-color", col);
}
public void RenderMarker(WpfDrawingRenderer renderer, WpfDrawingContext gr,
SvgMarkerPosition markerPos, SvgStyleableElement refElement)
{
ISharpMarkerHost markerHostElm = (ISharpMarkerHost)refElement;
SvgPointF[] vertexPositions = markerHostElm.MarkerPositions;
int start = 0;
int len = 0;
// Choose which part of the position array to use
switch (markerPos)
{
case SvgMarkerPosition.Start:
start = 0;
len = 1;
break;
case SvgMarkerPosition.Mid:
start = 1;
len = vertexPositions.Length - 2;
break;
default:
// == MarkerPosition.End
start = vertexPositions.Length - 1;
len = 1;
break;
}
int end = start + len;
TransformGroup transform = new TransformGroup();
for (int i = start; i < end; i++)
{
SvgPointF point = vertexPositions[i];
//GdiGraphicsContainer gc = gr.BeginContainer();
this.BeforeRender(renderer);
//Matrix matrix = Matrix.Identity;
Matrix matrix = GetTransformMatrix(_svgElement, transform);
ISvgAnimatedEnumeration orientType = _markerElement.OrientType;
if (orientType.AnimVal.Equals((ushort)SvgMarkerOrient.Angle))
{
double scaleValue = _markerElement.OrientAngle.AnimVal.Value;
if (!scaleValue.Equals(0))
{
matrix.Rotate(scaleValue);
transform.Children.Add(new RotateTransform(scaleValue));
}
}
else
{
bool isAutoReverse = orientType.AnimVal.Equals((ushort)SvgMarkerOrient.AutoStartReverse);
double angle = 0;
switch (markerPos)
{
case SvgMarkerPosition.Start:
angle = markerHostElm.GetStartAngle(i);
//angle = markerHostElm.GetStartAngle(i + 1);
if (vertexPositions.Length >= 2)
{
SvgPointF pMarkerPoint1 = vertexPositions[start];
SvgPointF pMarkerPoint2 = vertexPositions[end];
float xDiff = pMarkerPoint2.X - pMarkerPoint1.X;
float yDiff = pMarkerPoint2.Y - pMarkerPoint1.Y;
double angleMarker = (float)(Math.Atan2(yDiff, xDiff) * 180.0 / Math.PI);
if (!angleMarker.Equals(angle))
{
angle = angleMarker;
}
}
// A value of 'auto-start-reverse' means the same as 'auto' except that for a
// marker placed by 'marker-start', the orientation is 180° different from
// the orientation as determined by 'auto'.
if (isAutoReverse)
{
angle += 180;
}
break;
case SvgMarkerPosition.Mid:
//angle = (markerHostElm.GetEndAngle(i) + markerHostElm.GetStartAngle(i + 1)) / 2;
angle = SvgNumber.CalcAngleBisection(markerHostElm.GetEndAngle(i), markerHostElm.GetStartAngle(i + 1));
break;
default:
angle = markerHostElm.GetEndAngle(i - 1);
//angle = markerHostElm.GetEndAngle(i);
if (vertexPositions.Length >= 2)
{
SvgPointF pMarkerPoint1 = vertexPositions[start - 1];
SvgPointF pMarkerPoint2 = vertexPositions[start];
float xDiff = pMarkerPoint2.X - pMarkerPoint1.X;
float yDiff = pMarkerPoint2.Y - pMarkerPoint1.Y;
double angleMarker = (float)(Math.Atan2(yDiff, xDiff) * 180.0 / Math.PI);
if (!angleMarker.Equals(angle))
{
angle = angleMarker;
}
}
break;
}
matrix.Rotate(angle);
transform.Children.Add(new RotateTransform(angle));
}
// 'viewBox' and 'preserveAspectRatio' attributes
// viewBox -> viewport(0, 0, markerWidth, markerHeight)
SvgPreserveAspectRatio spar = (SvgPreserveAspectRatio)_markerElement.PreserveAspectRatio.AnimVal;
double[] translateAndScale = spar.FitToViewBox((SvgRect)_markerElement.ViewBox.AnimVal,
new SvgRect(0, 0, _markerElement.MarkerWidth.AnimVal.Value, _markerElement.MarkerHeight.AnimVal.Value));
// Warning at this time, refX and refY are relative to the painted element's coordinate system.
// We need to move the reference point to the marker's coordinate system
double refX = _markerElement.RefX.AnimVal.Value;
double refY = _markerElement.RefY.AnimVal.Value;
if (!(refX.Equals(0) && refY.Equals(0)))
{
var ptRef = matrix.Transform(new Point(refX, refY));
refX = ptRef.X;
refY = ptRef.Y;
matrix.Translate(-refX, -refY);
transform.Children.Add(new TranslateTransform(-refX, -refY));
}
//matrix.Translate(-markerElm.RefX.AnimVal.Value * translateAndScale[2],
// -markerElm.RefY.AnimVal.Value * translateAndScale[3]);
//transform.Children.Add(new TranslateTransform(-markerElm.RefX.AnimVal.Value * translateAndScale[2],
// -markerElm.RefY.AnimVal.Value * translateAndScale[3]));
// compute an additional transform for 'strokeWidth' coordinate system
ISvgAnimatedEnumeration markerUnits = _markerElement.MarkerUnits;
if (markerUnits.AnimVal.Equals((ushort)SvgMarkerUnit.StrokeWidth))
{
SvgLength strokeWidthLength = new SvgLength(refElement,
"stroke-width", SvgLengthSource.Css, SvgLengthDirection.Viewport, "1");
double strokeWidth = strokeWidthLength.Value;
if (!strokeWidth.Equals(1))
{
matrix.Scale(strokeWidth, strokeWidth);
transform.Children.Add(new ScaleTransform(strokeWidth, strokeWidth));
}
}
if (!(translateAndScale[2].Equals(1) && translateAndScale[3].Equals(1)))
{
matrix.Scale(translateAndScale[2], translateAndScale[3]);
transform.Children.Add(new ScaleTransform(translateAndScale[2], translateAndScale[3]));
}
matrix.Translate(point.X, point.Y);
transform.Children.Add(new TranslateTransform(point.X, point.Y));
_matrix = matrix;
this.Transform = transform;
this.Render(renderer);
//Clip(gr);
renderer.RenderChildren(_markerElement);
//gr.EndContainer(gc);
this.AfterRender(renderer);
}
}
public static SvgLength ParseCoordinate(this XmlElement element, string attributeName, SvgLength defaultValue) => element.ParseLength(attributeName, defaultValue);
public SvgUseElement(SvgLength x, SvgLength y, SvgXRef xref)
{
XRef = xref;
X = x;
Y = y;
}
public SvgImageElement(SvgLength x, SvgLength y, string href)
{
this.Href = href;
this.X = x;
this.Y = y;
}
public SvgPatternElement(SvgLength width, SvgLength height, SvgNumList vport)
{
Width = width;
Height = height;
ViewBox = vport;
}
public SvgSvgElement(SvgLength width, SvgLength height)
{
Width = width;
Height = height;
}
public SvgUseElement(SvgLength x, SvgLength y, string href)
{
Href = href;
X = x;
Y = y;
}
public void PaintMarker(GdiGraphicsRenderer renderer, GdiGraphics gr,
SvgMarkerPosition markerPos, SvgStyleableElement refElement)
{
ISharpMarkerHost markerHostElm = (ISharpMarkerHost)refElement;
SvgMarkerElement markerElm = (SvgMarkerElement)_svgElement;
SvgPointF[] vertexPositions = markerHostElm.MarkerPositions;
if (vertexPositions == null)
{
return;
}
var comparer = StringComparison.OrdinalIgnoreCase;
bool mayHaveCurves = markerHostElm.MayHaveCurves;
int start;
int len;
// Choose which part of the position array to use
switch (markerPos)
{
case SvgMarkerPosition.Start:
start = 0;
len = 1;
break;
case SvgMarkerPosition.Mid:
start = 1;
len = vertexPositions.Length - 2;
break;
default:
// == MarkerPosition.End
start = vertexPositions.Length - 1;
len = 1;
break;
}
int end = start + len;
for (int i = start; i < end; i++)
{
SvgPointF point = vertexPositions[i];
GdiGraphicsContainer gc = gr.BeginContainer();
gr.TranslateTransform(point.X, point.Y);
if (markerElm.OrientType.AnimVal.Equals((ushort)SvgMarkerOrient.Angle))
{
double scaleValue = markerElm.OrientAngle.AnimVal.Value;
if (!scaleValue.Equals(0))
{
gr.RotateTransform((float)scaleValue);
}
}
else
{
double angle;
switch (markerPos)
{
case SvgMarkerPosition.Start:
angle = markerHostElm.GetStartAngle(i);
//angle = markerHostElm.GetStartAngle(i + 1);
if (vertexPositions.Length >= 2)
{
SvgPointF pMarkerPoint1 = vertexPositions[start];
SvgPointF pMarkerPoint2 = vertexPositions[end];
float xDiff = pMarkerPoint2.X - pMarkerPoint1.X;
float yDiff = pMarkerPoint2.Y - pMarkerPoint1.Y;
double angleMarker = (float)(Math.Atan2(yDiff, xDiff) * 180.0 / Math.PI);
if (!angleMarker.Equals(angle))
{
angle = angleMarker;
}
}
break;
case SvgMarkerPosition.Mid:
//angle = (markerHostElm.GetEndAngle(i) + markerHostElm.GetStartAngle(i + 1)) / 2;
angle = SvgNumber.CalcAngleBisection(markerHostElm.GetEndAngle(i), markerHostElm.GetStartAngle(i + 1));
break;
default:
angle = markerHostElm.GetEndAngle(i - 1);
//double angle2 = markerHostElm.GetEndAngle(i);
if (vertexPositions.Length >= 2)
{
SvgPointF pMarkerPoint1 = vertexPositions[start - 1];
SvgPointF pMarkerPoint2 = vertexPositions[start];
float xDiff = pMarkerPoint2.X - pMarkerPoint1.X;
float yDiff = pMarkerPoint2.Y - pMarkerPoint1.Y;
double angleMarker = (float)(Math.Atan2(yDiff, xDiff) * 180.0 / Math.PI);
if (!angleMarker.Equals(angle))
{
angle = angleMarker;
}
}
//if (mayHaveCurves)
//{
// angle = this.GetAngleAt(start - 1, angle, markerPos, markerHostElm);
//}
break;
}
gr.RotateTransform((float)angle);
}
// 'viewBox' and 'preserveAspectRatio' attributes
// viewBox -> viewport(0, 0, markerWidth, markerHeight)
var spar = (SvgPreserveAspectRatio)markerElm.PreserveAspectRatio.AnimVal;
double[] translateAndScale = spar.FitToViewBox((SvgRect)markerElm.ViewBox.AnimVal,
new SvgRect(0, 0, markerElm.MarkerWidth.AnimVal.Value, markerElm.MarkerHeight.AnimVal.Value));
//// Warning at this time, refX and refY are relative to the painted element's coordinate system.
//// We need to move the reference point to the marker's coordinate system
//float refX = (float)markerElm.RefX.AnimVal.Value;
//float refY = (float)markerElm.RefY.AnimVal.Value;
////if (!(refX.Equals(0) && refY.Equals(0)))
////{
//// var points = new PointF[] { new PointF(refX, refY) };
//// gr.Transform.TransformPoints(points);
//// refX = points[0].X;
//// refY = points[0].Y;
//// gr.TranslateTransform(-refX, -refY);
////}
//if (markerElm.MarkerUnits.AnimVal.Equals((ushort)SvgMarkerUnit.StrokeWidth))
//{
// SvgLength strokeWidthLength = new SvgLength(refElement,
// "stroke-width", SvgLengthSource.Css, SvgLengthDirection.Viewport, "1");
// float strokeWidth = (float)strokeWidthLength.Value;
// gr.ScaleTransform(strokeWidth, strokeWidth);
//}
//gr.TranslateTransform(-(float)(markerElm.RefX.AnimVal.Value * translateAndScale[2]),
// -(float)(markerElm.RefY.AnimVal.Value * translateAndScale[3]));
//gr.ScaleTransform((float)translateAndScale[2], (float)translateAndScale[3]);
// compute an additional transform for 'strokeWidth' coordinate system
ISvgAnimatedEnumeration markerUnits = markerElm.MarkerUnits;
if (markerUnits.AnimVal.Equals((ushort)SvgMarkerUnit.StrokeWidth))
{
SvgLength strokeWidthLength = new SvgLength(refElement,
"stroke-width", SvgLengthSource.Css, SvgLengthDirection.Viewport, SvgConstants.ValOne);
double strokeWidth = strokeWidthLength.Value;
if (!strokeWidth.Equals(1))
{
gr.ScaleTransform((float)strokeWidth, (float)strokeWidth);
}
}
gr.TranslateTransform(-(float)(markerElm.RefX.AnimVal.Value * translateAndScale[2]),
-(float)(markerElm.RefY.AnimVal.Value * translateAndScale[3]));
if (!(translateAndScale[2].Equals(1) && translateAndScale[3].Equals(1)))
{
gr.ScaleTransform((float)translateAndScale[2], (float)translateAndScale[3]);
}
// gr.TranslateTransform(point.X, point.Y);
RectangleF rectClip = RectangleF.Empty;
if (markerUnits.AnimVal.Equals((ushort)SvgMarkerUnit.StrokeWidth))
{
string overflowAttr = markerElm.GetAttribute("overflow");
if (string.IsNullOrWhiteSpace(overflowAttr) ||
overflowAttr.Equals("scroll", comparer) || overflowAttr.Equals(CssConstants.ValHidden, comparer))
{
var markerClip = RectangleF.Empty;
SvgRect clipRect = (SvgRect)markerElm.ViewBox.AnimVal;
if (clipRect != null && !clipRect.IsEmpty)
{
rectClip = new RectangleF((float)clipRect.X, (float)clipRect.Y,
(float)clipRect.Width, (float)clipRect.Height);
}
else if (markerElm.IsSizeDefined)
{
rectClip = new RectangleF(0, 0,
(float)markerElm.MarkerWidth.AnimVal.Value, (float)markerElm.MarkerHeight.AnimVal.Value);
}
}
}
if (rectClip.IsEmpty)
{
SetClip(gr);
}
else
{
gr.SetClip(rectClip);
}
renderer.RenderChildren(markerElm);
gr.EndContainer(gc);
}
}
public SvgImageElement(SvgLength x, SvgLength y, SvgXRef xref)
{
this.XRef = xref;
this.X = x;
this.Y = y;
}
public static bool TryParseCoordinate(this XmlElement element, string attributeName, out SvgLength result) => element.TryParseLength(attributeName, out result);
