Esempio n. 1
0
        protected virtual void CreateVertexControl(TVertex vertex)
        {
            VertexControl presenter;
            var           compoundGraph = Graph as ICompoundGraph <TVertex, TEdge>;

            if (IsCompoundMode && compoundGraph != null && compoundGraph.IsCompoundVertex(vertex))
            {
                var compoundPresenter = new CompoundVertexControl
                {
                    Vertex      = vertex,
                    DataContext = vertex
                };
                compoundPresenter.Expanded  += CompoundVertexControl_ExpandedOrCollapsed;
                compoundPresenter.Collapsed += CompoundVertexControl_ExpandedOrCollapsed;
                presenter = compoundPresenter;
            }
            else
            {
                // Create the Control of the vertex
                presenter = new VertexControl
                {
                    Vertex      = vertex,
                    DataContext = vertex
                };
            }

            //var presenter = _vertexPool.GetObject();
            //presenter.Vertex = vertex;
            _vertexControls[vertex] = presenter;
            presenter.RootCanvas    = this;

            if (IsCompoundMode && compoundGraph != null && compoundGraph.IsChildVertex(vertex))
            {
                var parent        = compoundGraph.GetParent(vertex);
                var parentControl = GetOrCreateVertexControl(parent) as CompoundVertexControl;

                Debug.Assert(parentControl != null);

                parentControl.Vertices.Add(presenter);
            }
            else
            {
                //add the presenter to the GraphLayout
                Children.Add(presenter);
            }

            //Measuring & Arrange
            presenter.InvalidateMeasure();
            SetHighlightProperties(vertex, presenter);
            RunCreationTransition(presenter);
        }
        private void SetHighlightProperties(TVertex vertex, VertexControl presenter)
        {
            object highlightInfo;

            if (IsHighlightedVertex(vertex, out highlightInfo))
            {
                GraphElementBehaviour.SetIsHighlighted(presenter, true);
                GraphElementBehaviour.SetHighlightInfo(presenter, highlightInfo);
            }

            object semiHighlightInfo;

            if (IsSemiHighlightedVertex(vertex, out semiHighlightInfo))
            {
                GraphElementBehaviour.SetIsSemiHighlighted(presenter, true);
                GraphElementBehaviour.SetSemiHighlightInfo(presenter, semiHighlightInfo);
            }
        }