/// <summary>
///
/// </summary>
protected void UpdatePen()
{
if (state.pen == null)
{
float sw = (float)(state.strokeWidth * state.scale);
state.pen = new Pen((Color)state.strokeColor, sw);
System.Drawing.Drawing2D.LineCap cap = System.Drawing.Drawing2D.LineCap.Flat;
if (state.lineCap.Equals("round"))
{
cap = System.Drawing.Drawing2D.LineCap.Round;
}
else if (state.lineCap.Equals("square"))
{
cap = System.Drawing.Drawing2D.LineCap.Square;
}
state.pen.StartCap = cap;
state.pen.EndCap = cap;
System.Drawing.Drawing2D.LineJoin join = System.Drawing.Drawing2D.LineJoin.Miter;
if (state.lineJoin.Equals("round"))
{
join = System.Drawing.Drawing2D.LineJoin.Round;
}
else if (state.lineJoin.Equals("bevel"))
{
join = System.Drawing.Drawing2D.LineJoin.Bevel;
}
state.pen.LineJoin = join;
state.pen.MiterLimit = (float)state.miterLimit;
if (state.dashed)
{
float[] dash = new float[state.dashPattern.Length];
for (int i = 0; i < dash.Length; i++)
{
dash[i] = (float)(state.dashPattern[i] * state.strokeWidth);
}
state.pen.DashPattern = dash;
}
}
}
public static PenLineJoin ToEto(this sd2.LineJoin value)
{
switch (value)
{
case sd2.LineJoin.Bevel:
return(PenLineJoin.Bevel);
case sd2.LineJoin.Miter:
return(PenLineJoin.Miter);
case sd2.LineJoin.Round:
return(PenLineJoin.Round);
default:
throw new NotSupportedException();
}
}
public static DrawingImage GetImage(System.Drawing.Drawing2D.LineJoin join)
{
const double height = 1;
const double width = 2;
const double lineWidth = 0.375 * height;
PenLineJoin plj;
switch (join)
{
case sdd.LineJoin.Bevel:
plj = PenLineJoin.Bevel;
break;
case sdd.LineJoin.Miter:
case sdd.LineJoin.MiterClipped:
plj = PenLineJoin.Miter;
break;
case sdd.LineJoin.Round:
plj = PenLineJoin.Round;
break;
default:
plj = PenLineJoin.Bevel;
break;
}
var drawingGroup = new DrawingGroup();
GeometryDrawing geometryDrawing;
geometryDrawing = new GeometryDrawing
{
Geometry = new RectangleGeometry(new Rect(0, 0, width, height)),
Pen = new Pen(Brushes.Transparent, 0)
};
drawingGroup.Children.Add(geometryDrawing);
geometryDrawing = new GeometryDrawing();
var figure = new PathFigure
{
StartPoint = new Point(width, height * 0.875)
};
figure.Segments.Add(new PolyLineSegment(new Point[]
{
new Point(width / 2, height / 2),
new Point(width, height * 0.175)
}, true));
geometryDrawing.Geometry = new PathGeometry(new PathFigure[] { figure });
geometryDrawing.Pen = new Pen(Brushes.Black, lineWidth)
{
LineJoin = plj
};
drawingGroup.Children.Add(geometryDrawing);
drawingGroup.ClipGeometry = new RectangleGeometry(new Rect(0, 0, width, height));
var geometryImage = new DrawingImage(drawingGroup);
geometryImage.Freeze();
return(geometryImage);
}
