/// <summary>
/// Parse all graphic elements
/// </summary>
private GraphicGroup ParseGroup(XNamespace ns, XElement groupElement, Matrix matrix)
{
var group = new GraphicGroup();
cssStyleCascade.PushStyles(groupElement);
Matrix currentTransformationMatrix = matrix;
var transform = cssStyleCascade.GetPropertyFromTop("transform");
if (!string.IsNullOrEmpty(transform))
{
var transformMatrix = TransformMatrixParser.GetTransformMatrix(transform);
currentTransformationMatrix = transformMatrix * currentTransformationMatrix;
}
Clipping.SetClipPath(group, currentTransformationMatrix, cssStyleCascade, globalDefinitions);
group.Opacity = cssStyleCascade.GetDoubleFromTop("opacity", 1);
var shapeParser = new ShapeParser();
foreach (var element in groupElement.Elements())
{
switch (element.Name.LocalName)
{
case "defs":
case "style":
// already read, ignore
break;
case "g":
case "svg":
{
var childGroup = ParseGroup(ns, element, currentTransformationMatrix);
group.Childreen.Add(childGroup);
break;
}
default:
{
var shape = shapeParser.Parse(element, ns, currentTransformationMatrix, cssStyleCascade, globalDefinitions);
if (shape != null)
{
group.Childreen.Add(shape);
}
break;
}
}
}
cssStyleCascade.Pop();
return(group);
}
/// <summary>
/// Parse an SVG given as XElement root
/// </summary>
public GraphicVisual ParseRoot(XElement root)
{
var nameSpaceAttributes = root.Attributes().Where(a => a.IsNamespaceDeclaration);
var defaultNamespaceAttribute = root.Attributes().Where(a => a.IsNamespaceDeclaration && a.Name.Namespace == XNamespace.None).FirstOrDefault();
XNamespace defaultNamespace = defaultNamespaceAttribute.Value;
Matrix currentTransformationMatrix = Matrix.Identity;
cssStyleCascade = new CssStyleCascade(root);
var svgViewBox = new SvgViewBox
{
ViewBox = new Rect(0, 0, 100, 100),
Align = "none",
Slice = "meet"
};
cssStyleCascade.PushViewBox(svgViewBox);
doubleParser = new DoubleParser(cssStyleCascade);
ReadGlobalDefinitions(root);
var brushParser = new BrushParser(defaultNamespace, cssStyleCascade, globalDefinitions, doubleParser);
var geometryParser = new GeometryParser(doubleParser);
var geometryTextParser = new GeometryTextParser(cssStyleCascade, doubleParser);
clipping = new Clipping(cssStyleCascade, globalDefinitions, geometryParser, geometryTextParser);
shapeParser = new ShapeParser(cssStyleCascade, brushParser, geometryParser, clipping);
textParser = new TextParser(cssStyleCascade, doubleParser, brushParser, clipping);
GraphicVisual visual = ParseSVG(root, currentTransformationMatrix, true);
visual = OptimizeVisual.Optimize(visual);
return(visual);
}
