public void RedirectEdge(FlNwNodeVisualization _to_node, bool _rerout_start, FlowNetwork _owner)
{
if (_to_node == null || _owner == null)
{
return;
}
// perform redirection in the data
FlNetEdge edge_data = this.FN_Edge;
FlNetNode node_data = _to_node.FN_Node;
bool success = false;
if (edge_data != null && node_data != null)
{
success = _owner.RedirectEdge(edge_data, _rerout_start, node_data);
}
// perform redirection in the visualizations
if (success)
{
if (_rerout_start)
{
this.StartVis = _to_node;
}
else
{
this.EndVis = _to_node;
}
}
}
// assumes that _fn_node is not NULL
public FlNwNodeVisualization(FlowNwGraph _parent, FlNetNode _fn_node, NodePosInFlow _pos_in_flow)
: base(_parent, FlNwElementVisualization.NODE_WIDTH_DEFAULT, FlNwElementVisualization.NODE_HEIGHT_DEFAULT,
_fn_node.Position.X, _fn_node.Position.Y)
{
this.fn_node = _fn_node;
this.fn_node.PropertyChanged += node_PropertyChanged;
this.PosInFlow = _pos_in_flow;
}
private void node_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
FlNetNode node = sender as FlNetNode;
if (node == null || e == null)
{
return;
}
if (e.PropertyName == "Content" || e.PropertyName == "ParamValueToDisplay")
{
this.UpdateContent();
}
}
public override DataTemplate SelectTemplate(object item, DependencyObject container)
{
if (container == null)
{
return(null);
}
FrameworkElement element = container as FrameworkElement;
if (element == null)
{
return(null);
}
if (item == null)
{
return(element.TryFindResource("DT_Empty") as DataTemplate);
}
FlNetNode node = item as FlNetNode;
FlNetEdge edge = item as FlNetEdge;
FlowNetwork network = item as FlowNetwork;
if (node != null && network == null)
{
return(element.TryFindResource("FlNetNodeInList") as DataTemplate);
}
else if (edge != null)
{
return(element.TryFindResource("FlNetEdgeInList") as DataTemplate);
}
else if (network != null)
{
return(element.TryFindResource("NetworkInList") as DataTemplate);
}
else
{
return(null);
}
}
