// ReSharper restore UnusedAutoPropertyAccessor.Local
/// <summary>
/// Renders the change details as SVG directed graph.
/// </summary>
/// <param name="renderer">SVG renderer to use.</param>
/// <returns><see cref="XElement"/> containing SVG fragment for adding to browser view.</returns>
public async Task <XElement> RenderSvg(ISvgRenderer renderer)
{
var graph = this.GenerateChangeGraph();
var dotGraph = graph.ToGraphviz(
algorithm =>
{
var font = new GraphvizFont("Arial", 9);
algorithm.CommonVertexFormat.Font = font;
algorithm.CommonEdgeFormat.Font = font;
algorithm.GraphFormat.RankDirection = GraphvizRankDirection.LR;
algorithm.FormatVertex += (sender, args) =>
{
args.VertexFormat.Label = args.Vertex.ToString();
args.VertexFormat.Shape = args.Vertex.Shape;
if (args.Vertex is ResourceVertex rv)
{
args.VertexFormat.Label = rv.Label;
args.VertexFormat.IsHtmlLabel = true;
args.VertexFormat.Style = rv.Style;
args.VertexFormat.FillColor = rv.FillColor;
args.VertexFormat.FontColor = rv.FontColor;
}
};
algorithm.FormatEdge += (sender, args) => { args.EdgeFormat.Label.Value = args.Edge.Tag; };
});
var svg = await renderer.RenderSvg(dotGraph);
if (svg != null)
{
// Now change the width and height attributes of the SVG to 100% so it becomes responsive in bootstrap
if (svg.Attribute("width") != null)
{
svg.Attribute("width").Value = "100%";
}
if (svg.Attribute("height") != null)
{
svg.Attribute("height").Value = "100%";
}
}
return(svg);
}
