private bool IsExpanded(IRenderContext context, INode node)
{
CanvasControl canvas = context != null ? context.CanvasControl : null;
if (canvas != null)
{
IGraph graph = canvas.Lookup(typeof(IGraph)) as IGraph;
if (graph != null)
{
IFoldingView foldedGraph = graph.Lookup <IFoldingView>();
if (foldedGraph != null && foldedGraph.Graph.Contains(node))
{
return(foldedGraph.IsExpanded(node));
}
}
}
return(true);
}
public override IVisual CreateVisual(IRenderContext context)
{
collapsedIcon.SetBounds(new RectD(Bounds.GetTopLeft(), Bounds.GetSize()));
expandedIcon.SetBounds(new RectD(Bounds.GetTopLeft(), Bounds.GetSize()));
bool expanded = true;
CanvasControl canvas = context != null ? context.CanvasControl : null;
if (canvas != null)
{
IGraph graph = canvas.Lookup(typeof(IGraph)) as IGraph;
if (graph != null)
{
IFoldingView foldedGraph = graph.Lookup <IFoldingView>();
if (foldedGraph != null && foldedGraph.Graph.Contains(node))
{
expanded = foldedGraph.IsExpanded(node);
}
}
}
return(expanded ? expandedIcon.CreateVisual(context) : collapsedIcon.CreateVisual(context));
}
