public Visitor(VectorElementPdfPageViewport pageViewport, SvgGraphicsElement element, float pageHeight, PdfSpotColor spotColorOverride)
{
_spotColorOverride = spotColorOverride;
_pageViewport = pageViewport ?? throw new ArgumentNullException(nameof(pageViewport));
_element = element ?? throw new ArgumentNullException(nameof(element));
_pageHeight = pageHeight;
}
public override void Draw(PageWriter writer)
{
var svg = SvgDocument.RootElement;
if (svg == null)
{
return;
}
var svgWidth = svg.ViewBox?.Width ?? (svg.Width ?? 0);
var svgHeight = svg.ViewBox?.Height ?? (svg.Height ?? Height); // as per spec height defaults to 100%
if (svgWidth <= 0 || svgHeight <= 0)
{
return;
}
var viewport = new VectorElementPdfPageViewport(svgWidth, svgHeight, X, Y, Width, Height, ContentHorizontalAlignment, ContentVerticalAlignment);
var pagePlacement = viewport.PagePlacement;
var container = new TransformationGroup(pagePlacement.X, pagePlacement.Y, Width, Height)
{
ScaleX = viewport.ScaleX,
ScaleY = viewport.ScaleY
};
var pageHeight = writer.Page.Dimensions.Height;
container.Add(svg.Accept(new SvgElementToDynamicPdfElementConverter(svg, viewport, pageHeight, SpotColorOveride)));
container.Draw(writer);
}
/// <summary>
/// Initializes a new instance of <see cref="SvgPathSegToDynamicPdfPathsConverter"/> using the specified <see cref="graphicsElement"/>
/// for the styling properties of the resulting paths
/// </summary>
public SvgPathSegToDynamicPdfPathsConverter(SvgGraphicsElement graphicsElement, VectorElementPdfPageViewport pageViewport, float pageHeight, PdfSpotColor spotColorOverride)
{
_spotColorOverride = spotColorOverride;
_pageViewport = pageViewport;
_pageHeight = pageHeight;
SetFillStyle(graphicsElement);
SetStrokeStyle(graphicsElement);
}
public SvgElementToDynamicPdfElementConverter(SvgSvgElement rootSvgElement, VectorElementPdfPageViewport pageViewport, float pageHeight, PdfSpotColor spotColorOverride)
{
_spotColorOverride = spotColorOverride;
_rootSvgElement = rootSvgElement ?? throw new ArgumentNullException(nameof(rootSvgElement));
_pageViewport = pageViewport ?? throw new ArgumentNullException(nameof(pageViewport));
_pageHeight = pageHeight;
_matrixStack.Push(SvgMatrix.Identity);
}
public static Color ConvertToColor(SvgPaintServer paintServer, VectorElementPdfPageViewport pageViewport, float pageHeight, SvgGraphicsElement element, PdfSpotColor spotColorInk) => paintServer?.Accept(new Visitor(pageViewport, element, pageHeight, spotColorInk));