//==========================================================================
public virtual Geometry?GetGeometry()
{
var geometry = GetBaseGeometry();
if (geometry is null)
{
return(null);
}
if (Transform != null)
{
geometry.Transform = Transform.ToTransform();
}
if (ClipPath is null)
{
return(geometry);
}
var clip_path_element = Document.Elements[ClipPath] as SvgClipPathElement;
var clip_geometry = clip_path_element?.GetClipGeometry();
return(clip_geometry != null
? Geometry.Combine(geometry, clip_geometry, GeometryCombineMode.Intersect, null)
: geometry);
}
//==========================================================================
public virtual Geometry GetGeometry()
{
var geometry_group = new GeometryGroup();
foreach (var element in Children)
{
if (element is SvgDrawableBaseElement)
{
geometry_group.Children.Add((element as SvgDrawableBaseElement).GetGeometry());
}
else if (element is SvgDrawableContainerBaseElement)
{
geometry_group.Children.Add((element as SvgDrawableContainerBaseElement).GetGeometry());
}
}
if (Transform != null)
{
geometry_group.Transform = Transform.ToTransform();
}
if (ClipPath != null)
{
var clip_path_element = Document.Elements[ClipPath.Id] as SvgClipPathElement;
if (clip_path_element != null)
{
return(Geometry.Combine(geometry_group, clip_path_element.GetClipGeometry(), GeometryCombineMode.Exclude, null));
}
}
return(geometry_group);
}
//==========================================================================
public DrawingBrush ToBrush()
{
DrawingBrush brush = null;
if (Reference is null)
{
brush = new DrawingBrush(Draw());
}
else
{
var element = Document.Elements[Reference];
if (element is SvgPatternElement)
{
brush = (element as SvgPatternElement).ToBrush();
}
else
{
throw new NotSupportedException("Other references than patterns are not supported");
}
}
if (brush is null)
{
return(null);
}
if ((Width != null) || (Height != null))
{
var width = brush.Drawing.Bounds.Width;
var height = brush.Drawing.Bounds.Height;
}
if (PatternUnits == SvgPatternUnits.UserSpaceOnUse)
{
brush.ViewportUnits = BrushMappingMode.Absolute;
brush.Viewport = brush.Drawing.Bounds;
}
if (PatternTransform != null)
{
var drawing_group = new DrawingGroup();
drawing_group.Transform = PatternTransform.ToTransform();
drawing_group.Children.Add(brush.Drawing);
brush.Drawing = drawing_group;
}
return(brush);
}
//==========================================================================
protected virtual GradientBrush SetBrush(GradientBrush brush)
{
switch (SpreadMethod)
{
case SvgSpreadMethod.Pad:
brush.SpreadMethod = GradientSpreadMethod.Pad;
break;
case SvgSpreadMethod.Reflect:
brush.SpreadMethod = GradientSpreadMethod.Reflect;
break;
case SvgSpreadMethod.Repeat:
brush.SpreadMethod = GradientSpreadMethod.Repeat;
break;
}
switch (GradientUnits)
{
case SvgGradientUnits.ObjectBoundingBox:
brush.MappingMode = BrushMappingMode.RelativeToBoundingBox;
break;
case SvgGradientUnits.UserSpaceOnUse:
brush.MappingMode = BrushMappingMode.Absolute;
break;
}
if (Transform != null)
{
brush.Transform = Transform.ToTransform();
}
foreach (var stop in Stops)
{
brush.GradientStops.Add(stop.ToGradientStop());
}
return(brush);
}