public static async Task Render(IElement element, IFrameContext context, RendererDirect2D render)
{
var href = element.GetHref();
if (href == null)
{
return;
}
var fragment = (href.Scheme == "internal")
? element.OwnerDocument?.GetElementById(href.Fragment.Substring(1))
: await LoadExternal(href, render, element.OwnerDocument.BaseUri);
if (fragment == null)
{
return;
}
try
{
fragment.SetParentOverride(element);
using (TransformHelper.CreatePosition(render, element, context))
await render.GetRenderer(fragment.ElementType)(
fragment,
context.Create(element.GetSize(context, context.Size)),
render
);
}
finally
{
fragment.SetParentOverride(null);
}
}
public static async Task Render(IElement element, IFrameContext context, RendererDirect2D render)
{
var size = element.GetSize(context, context.Size);
var viewPort = element.GetViewBox()?.AsRectangle() ?? size.AsRectangle();
var newContext = context.Create(viewPort.Size);
using (element.IsRootElement ? null : TransformHelper.CreatePosition(render, element, context))
using (LayerHelper.Create(render, element, context, size))
using (TransformHelper.Create(render, element.GetPreserveAspectRatio().CalcMatrix(size, viewPort)))
{
foreach (var child in element.Children)
{
await render.GetRenderer(child.ElementType)(child, newContext, render);
}
}
}
public static async Task Render(IElement element, IFrameContext context, RendererDirect2D render)
{
if (element.Parent.ElementType != "use")
{
return;
}
var size = element.GetSize(context, context.Size);
var viewPort = element.GetViewBox()?.AsRectangle() ?? size.AsRectangle();
var newContext = context.Create(viewPort.Size);
using (TransformHelper.Create(render, element.GetPreserveAspectRatio().CalcMatrix(size, viewPort)))
foreach (var child in element.Children)
{
await render.GetRenderer(child.ElementType)(child, newContext, render);
}
}
public static async Task Render(this IDocument doc, IElement element, IFrameContext context, RendererDirect2D render)
{
var root = doc.RootElement;
if (root == null)
{
return;
}
var size = element.GetSize(context, context.Size);
var viewPort = root.GetViewBox()?.AsRectangle() ?? size.AsRectangle();
var newContext = context.Create(viewPort.Size);
using (TransformHelper.CreatePosition(render, element, context))
using (TransformHelper.Create(render, element.GetPreserveAspectRatio().CalcMatrix(size, viewPort)))
using (LayerHelper.Create(render, element, context, viewPort.Size))
foreach (var child in root.Children)
{
await render.GetRenderer(child.ElementType)(child, newContext, render);
}
}
