/// <summary>
/// Creates a LinkingLine that only has a source and can be linked to a new destination.
/// </summary>
/// <param name=""></param>
public LinkingLine(WeightedNodeControl source)
{
InitializeComponent();
this.source = source;
RequiresDestination = true;
source.AddLinkingLine(this);
timer.Interval = 5;
timer.AutoReset = true;
timer.Enabled = true;
}
private void LinkingLine_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
if (RequiresDestination)
{
if (ParentIsOfType((FrameworkElement)Mouse.DirectlyOver, typeof(WeightedNodeControl)))
{
WeightedNodeControl node = (WeightedNodeControl)GetParentControl((FrameworkElement)Mouse.DirectlyOver, typeof(WeightedNodeControl));
node.WasLinkedTo = true;
node.AddLinkingLine(this);
this.destination = node;
RequiresDestination = false;
((UIElement)Parent).PreviewMouseLeftButtonDown -= LinkingLine_PreviewMouseLeftButtonDown;
}
}
}
/// <summary>
/// Creates a LinkingLine that which already has a destination.
/// </summary>
/// <param name="source"></param>
/// <param name="destination"></param>
public LinkingLine(WeightedNodeControl source, WeightedNodeControl destination)
{
InitializeComponent();
this.source = source;
this.destination = destination;
source.AddLinkingLine(this);
destination.AddLinkingLine(this);
destination.PreviewMouseLeftButtonDown += Destination_PreviewMouseLeftButtonDown;
timer.Interval = 5;
timer.AutoReset = true;
timer.Enabled = true;
}