public GraphSceneDisplayMeshVisitor(
IGraphSceneDisplayMesh <TSinkItem, TSinkEdge> mesh,
IGraphSceneDisplayMeshBackHandler <TSinkItem, TSinkEdge> backHandler,
IGraph <TSinkItem, TSinkEdge> graph,
TSinkItem item)
{
this.Mesh = mesh;
this.BackHandler = backHandler as GraphSceneDisplayMeshBackHandler <TSinkItem, TSourceItem, TSinkEdge, TSourceEdge>;
this.SourceGraph = graph;
this.SourceItem = item;
this.SourceDisplay = Mesh.Displays.FirstOrDefault(d => d.Data.Graph == SourceGraph);
this.SourceScene = Mesh.Scenes.FirstOrDefault(s => s.Graph == SourceGraph);
this.BackGraph = BackGraphOf(SourceGraph);
this.BackItem = BackItemOf(SourceGraph, item);
}
//IGraphSceneMeshBackHandler<TItem, TEdge> BackHandler (IGraph<TItem, TEdge> graph);
//IGraphSceneMeshBackHandler<TItem, TEdge> BackHandler<TSourceItem, TSourceEdge> ();
protected virtual IGraphSceneDisplayMeshBackHandler <TItem, TEdge> BackHandler(Type[] types)
{
if (types != null)
{
var key = Tuple.Create(types[1], types[3]);
IGraphSceneDisplayMeshBackHandler <TItem, TEdge> backHandler = null;
if (!_backHandlers.TryGetValue(key, out backHandler))
{
backHandler = Activator.CreateInstance(typeof(GraphSceneDisplayMeshBackHandler <, , ,>).MakeGenericType(types)) as IGraphSceneDisplayMeshBackHandler <TItem, TEdge>;
_backHandlers.Add(key, backHandler);
backHandler.Scenes = () => this.Scenes;
backHandler.Displays = () => this.Displays;
}
return(backHandler);
}
return(null);
}
