/// <summary>
/// Write the graph description to the file.
/// </summary>
/// <param name="path">File name.</param>
public override void Write(string path)
{
using (var writer = new StreamWriter(path, false))
{
writer.WriteLine($"digraph {Name}");
writer.WriteLine("{");
//default attribute values
DotWriteHelper.WriteLineIndent(writer, "node [ fontsize=8, style=\"filled, rounded\", fillcolor=transparent ];\n", 1);
foreach (var n in nodes.Values)
{
DotWriteHelper.Indent(writer, 1);
WriteNode(writer, n);
}
writer.WriteLine();
foreach (var e in edges)
{
DotWriteHelper.Indent(writer, 1);
WriteEdge(writer, e);
}
if (Legend != null)
{
writer.WriteLine();
AddLegend(writer);
}
writer.WriteLine("}");
}
}
private void AddLegend(StreamWriter writer)
{
int count;
DotWriteHelper.WriteLineIndent(writer, "rankdir=LR;", 1);
DotWriteHelper.WriteLineIndent(writer, "subgraph legend", 1);
DotWriteHelper.WriteLineIndent(writer, "{", 1);
DotWriteHelper.WriteLineIndent(writer, "node [ shape=none ];", 2);
count = 0;
DotWriteHelper.WriteLineIndent(writer, "key1", 2);
DotWriteHelper.WriteLineIndent(writer, "[", 2);
DotWriteHelper.WriteLineIndent(writer, "label=<", 3);
DotWriteHelper.WriteLineIndent(writer, "<table border = \"0\" cellpadding = \"2\" cellspacing = \"0\" cellborder = \"0\">", 4);
foreach (var item in Legend.Items)
{
DotWriteHelper.WriteLineIndent(writer, $"<tr><td align=\"right\" port=\"tmp_{count}\">{item.Label}</td></tr>", 5);
count++;
}
DotWriteHelper.WriteLineIndent(writer, "</table>", 4);
DotWriteHelper.WriteLineIndent(writer, ">", 3);
DotWriteHelper.WriteLineIndent(writer, "]", 2);
count = 0;
DotWriteHelper.WriteLineIndent(writer, "key2", 2);
DotWriteHelper.WriteLineIndent(writer, "[", 2);
DotWriteHelper.WriteLineIndent(writer, "label=<", 3);
DotWriteHelper.WriteLineIndent(writer, "<table border = \"0\" cellpadding = \"2\" cellspacing = \"0\" cellborder = \"0\">", 4);
foreach (var item in Legend.Items)
{
DotWriteHelper.WriteLineIndent(writer, $"<tr><td port=\"tmp_{count}\"> </td></tr>", 5);
count++;
}
DotWriteHelper.WriteLineIndent(writer, "</table>", 4);
DotWriteHelper.WriteLineIndent(writer, ">", 3);
DotWriteHelper.WriteLineIndent(writer, "]", 2);
count = 0;
foreach (var item in Legend.Items)
{
DotWriteHelper.WriteIndent(writer, $"key1: tmp_{count}: e->key2: tmp_{count}: w [ ", 2);
DotWriteHelper.WriteAttribute(writer, "penwidth", 0, item.LineWidth);
DotWriteHelper.WriteAttribute(writer, "color", Color.Empty, item.LineColor, c => ((Color)c).GetHexString());
DotWriteHelper.WriteAttribute(writer, "style", EdgeStyle.Normal, item.Style, s => ((EdgeStyle)s).GetStringValue());
writer.WriteLine("]");
count++;
}
DotWriteHelper.WriteLineIndent(writer, "}", 1);
}
private void WriteNode(StreamWriter writer, Node node)
{
writer.Write($"{node.ID} [ ");
DotWriteHelper.WriteAttribute(writer, "label", null, node.Label);
DotWriteHelper.WriteAttribute(writer, "fontsize", 0, node.FontSize);
DotWriteHelper.WriteAttribute(writer, "fontcolor", Color.Empty, node.FontColor, c => ((Color)c).GetHexString());
DotWriteHelper.WriteAttribute(writer, "fillcolor", Color.Empty, node.FillColor, c => ((Color)c).GetHexString());
DotWriteHelper.WriteAttribute(writer, "color", Color.Empty, node.BorderColor, c => ((Color)c).GetHexString());
DotWriteHelper.WriteAttribute(writer, "shape", ShapeStyle.Empty, node.Shape, s => ((ShapeStyle)s).GetStringValue());
DotWriteHelper.WriteAttribute(writer, "penwidth", 0, node.BorderWidth);
writer.WriteLine("];");
}
private void WriteEdge(StreamWriter writer, Edge edge)
{
writer.Write($"{edge.Source.ID} -> {edge.Target.ID} [ ");
DotWriteHelper.WriteAttribute(writer, "label", null, edge.Label);
DotWriteHelper.WriteAttribute(writer, "fontsize", 0, edge.FontSize);
DotWriteHelper.WriteAttribute(writer, "fontcolor", Color.Empty, edge.FontColor, c => ((Color)c).GetHexString());
DotWriteHelper.WriteAttribute(writer, "color", Color.Empty, edge.Color, c => ((Color)c).GetHexString());
DotWriteHelper.WriteAttribute(writer, "arrowtail", ArrowheadStyle.Normal, edge.ArrowheadAtSource, s => ((ArrowheadStyle)s).GetStringValue());
DotWriteHelper.WriteAttribute(writer, "arrowhead", ArrowheadStyle.Normal, edge.ArrowheadAtTarget, s => ((ArrowheadStyle)s).GetStringValue());
DotWriteHelper.WriteAttribute(writer, "style", EdgeStyle.Normal, edge.Style, s => ((EdgeStyle)s).GetStringValue());
DotWriteHelper.WriteAttribute(writer, "penwidth", 0, edge.Width);
DotWriteHelper.WriteAttribute(writer, "dir", false, edge.Reverse, _ => "back");
writer.WriteLine("];");
}
