public override ICanvasImage GetRender(ICanvasResourceCreator resourceCreator, Layerage layerage)
{
Transformer transformer = base.Transform.Transformer;
CanvasGeometry geometry = transformer.ToRectangle(resourceCreator);
CanvasCommandList command = new CanvasCommandList(resourceCreator);
using (CanvasDrawingSession drawingSession = command.CreateDrawingSession())
{
if (this.Transform.IsCrop)
{
CanvasGeometry geometryCrop = this.Transform.CropTransformer.ToRectangle(resourceCreator);
CanvasGeometryRelation relation = geometry.CompareWith(geometryCrop);
switch (relation)
{
case CanvasGeometryRelation.Disjoint:
return(null);
case CanvasGeometryRelation.Contained:
this.PatternRenderCore(resourceCreator, drawingSession, geometry, geometry);
break;
case CanvasGeometryRelation.Contains:
this.PatternRenderCore(resourceCreator, drawingSession, geometry, geometryCrop);
break;
case CanvasGeometryRelation.Overlap:
Matrix3x2 zero = Matrix3x2.CreateTranslation(0.0f, 0.0f);
CanvasGeometry combine = geometry.CombineWith(geometryCrop, zero, CanvasGeometryCombine.Intersect);
this.PatternRenderCore(resourceCreator, drawingSession, geometry, combine);
break;
default:
return(null);
}
}
else
{
this.PatternRenderCore(resourceCreator, drawingSession, geometry, geometry);
}
}
return(command);
}