public override void Render(WpfDrawingRenderer renderer)
{
WpfDrawingContext context = renderer.Context;
SvgRenderingHint hint = _svgElement.RenderingHint;
if (hint != SvgRenderingHint.Shape || hint == SvgRenderingHint.Clipping)
{
return;
}
// We do not directly render the contents of the clip-path, unless specifically requested...
if (String.Equals(_svgElement.ParentNode.LocalName, "clipPath") &&
!context.RenderingClipRegion)
{
return;
}
SvgStyleableElement styleElm = (SvgStyleableElement)_svgElement;
string sVisibility = styleElm.GetPropertyValue("visibility");
string sDisplay = styleElm.GetPropertyValue("display");
if (String.Equals(sVisibility, "hidden") || String.Equals(sDisplay, "none"))
{
return;
}
DrawingGroup drawGroup = context.Peek();
Debug.Assert(drawGroup != null);
Geometry geometry = CreateGeometry(_svgElement, context.OptimizePath);
if (geometry != null && !geometry.IsEmpty())
{
SetClip(context);
WpfSvgPaint fillPaint = new WpfSvgPaint(context, styleElm, "fill");
string fileValue = styleElm.GetAttribute("fill");
Brush brush = fillPaint.GetBrush(geometry);
WpfSvgPaint strokePaint = new WpfSvgPaint(context, styleElm, "stroke");
Pen pen = strokePaint.GetPen();
if (brush != null || pen != null)
{
Transform transform = this.Transform;
if (transform != null && !transform.Value.IsIdentity)
{
geometry.Transform = transform;
if (brush != null)
{
Transform brushTransform = brush.Transform;
if (brushTransform == null || brushTransform == Transform.Identity)
{
brush.Transform = transform;
}
else
{
TransformGroup groupTransform = new TransformGroup();
groupTransform.Children.Add(brushTransform);
groupTransform.Children.Add(transform);
brush.Transform = groupTransform;
}
}
}
else
{
transform = null; // render any identity transform useless...
}
GeometryDrawing drawing = new GeometryDrawing(brush, pen, geometry);
string elementId = this.GetElementName();
if (!String.IsNullOrEmpty(elementId) && !context.IsRegisteredId(elementId))
{
drawing.SetValue(FrameworkElement.NameProperty, elementId);
context.RegisterId(elementId);
if (context.IncludeRuntime)
{
SvgObject.SetId(drawing, elementId);
}
}
Brush maskBrush = this.Masking;
Geometry clipGeom = this.ClipGeometry;
if (clipGeom != null || maskBrush != null)
{
//Geometry clipped = Geometry.Combine(geometry, clipGeom,
// GeometryCombineMode.Exclude, null);
//if (clipped != null && !clipped.IsEmpty())
//{
// geometry = clipped;
//}
DrawingGroup clipMaskGroup = new DrawingGroup();
Rect geometryBounds = geometry.Bounds;
if (clipGeom != null)
{
clipMaskGroup.ClipGeometry = clipGeom;
SvgUnitType clipUnits = this.ClipUnits;
if (clipUnits == SvgUnitType.ObjectBoundingBox)
{
Rect drawingBounds = geometryBounds;
if (transform != null)
{
drawingBounds = transform.TransformBounds(drawingBounds);
}
TransformGroup transformGroup = new TransformGroup();
// Scale the clip region (at (0, 0)) and translate to the top-left corner of the target.
transformGroup.Children.Add(
new ScaleTransform(drawingBounds.Width, drawingBounds.Height));
transformGroup.Children.Add(
new TranslateTransform(drawingBounds.X, drawingBounds.Y));
clipGeom.Transform = transformGroup;
}
else
{
if (transform != null)
{
clipGeom.Transform = transform;
}
}
}
if (maskBrush != null)
{
SvgUnitType maskUnits = this.MaskUnits;
if (maskUnits == SvgUnitType.ObjectBoundingBox)
{
Rect drawingBounds = geometryBounds;
if (transform != null)
{
drawingBounds = transform.TransformBounds(drawingBounds);
}
TransformGroup transformGroup = new TransformGroup();
// Scale the clip region (at (0, 0)) and translate to the top-left corner of the target.
transformGroup.Children.Add(
new ScaleTransform(drawingBounds.Width, drawingBounds.Height));
transformGroup.Children.Add(
new TranslateTransform(drawingBounds.X, drawingBounds.Y));
DrawingGroup maskGroup = ((DrawingBrush)maskBrush).Drawing as DrawingGroup;
if (maskGroup != null)
{
DrawingCollection maskDrawings = maskGroup.Children;
for (int i = 0; i < maskDrawings.Count; i++)
{
Drawing maskDrawing = maskDrawings[i];
GeometryDrawing maskGeomDraw = maskDrawing as GeometryDrawing;
if (maskGeomDraw != null)
{
if (maskGeomDraw.Brush != null)
{
ConvertColors(maskGeomDraw.Brush);
}
if (maskGeomDraw.Pen != null)
{
ConvertColors(maskGeomDraw.Pen.Brush);
}
}
}
}
//if (transformGroup != null)
//{
// drawingBounds = transformGroup.TransformBounds(drawingBounds);
//}
//maskBrush.Viewbox = drawingBounds;
//maskBrush.ViewboxUnits = BrushMappingMode.Absolute;
//maskBrush.Stretch = Stretch.Uniform;
//maskBrush.Viewport = drawingBounds;
//maskBrush.ViewportUnits = BrushMappingMode.Absolute;
maskBrush.Transform = transformGroup;
}
else
{
if (transform != null)
{
maskBrush.Transform = transform;
}
}
clipMaskGroup.OpacityMask = maskBrush;
}
clipMaskGroup.Children.Add(drawing);
drawGroup.Children.Add(clipMaskGroup);
}
else
{
drawGroup.Children.Add(drawing);
}
}
}
RenderMarkers(renderer, styleElm, context);
}