private async Task DrawEdgeLine(RenderEdge edge)
{
await _context.BeginPathAsync();
await _context.MoveToAsync(edge.From.X, edge.From.Y);
await _context.LineToAsync(edge.To.X, edge.To.Y);
await _context.ClosePathAsync();
await _context.StrokeAsync();
}
private async Task DrawEdge(RenderEdge edge)
{
var types = edge.Types & _config.Types;
if (types == 0)
{
return;
}
await DrawEdgeLine(edge);
await DrawEdgeLabel(edge, types);
}
private async Task DrawEdgeLabel(RenderEdge edge, ReferenceType types)
{
var typeLabels = types.ToString().Split(", ");
var position = edge.Label.Position + new Position(0, edge.Label.Dimensions.Height);
var label = typeLabels[0];
if (typeLabels.Length != 1)
{
label = $"{label} +{typeLabels.Length - 1}";
}
await DrawText(label, position, edge.Label.Dimensions.Width, _config.EdgeFont);
}