/// <summary>
/// Delegate called when the control is initialized.
/// </summary>
/// <param name="pEventArgs">The event arguments.</param>
protected override void OnInitialized(EventArgs pEventArgs)
{
PortViewModel lPortViewModel = this.DataContext as PortViewModel;
if (lPortViewModel == null)
{
return;
}
PortContainer lParentContainer = this.FindVisualParent <PortContainer>();
if (lParentContainer == null)
{
return;
}
PortView lPortView = lParentContainer.GetContainerForViewModel(lPortViewModel);
if (lPortView != null)
{
AdornerLayeredCanvas lCanvas = this.FindVisualParent <AdornerLayeredCanvas>();
if (lCanvas != null)
{
// Creating the adorner layer.
AdornerLayer lLayer = lCanvas.AdornerLayer;
// Creating the adorner and propagating this control background.
this.mAdorner = new ConnectorAdorner(lPortView);
this.UpdateConnectorsBackground();
// Adding the adorner to the layer.
lLayer.Add(this.mAdorner);
}
}
}
/// <summary>
/// Delegate called when the background brush changed.
/// </summary>
/// <param name="pObject">The modified control.</param>
/// <param name="pEventArgs">The event arguments.</param>
private static void OnBackgroundChanged(DependencyObject pObject, DependencyPropertyChangedEventArgs pEventArgs)
{
PortContainer lContainer = pObject as PortContainer;
if (lContainer != null)
{
lContainer.UpdateItemsBackground();
}
}
/// <summary>
/// Method called when the control template is applied.
/// </summary>
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
// Getting the parts of the control.
this.mInnerPortContainer = this.GetTemplateChild(PART_PORT_CONTAINER) as PortContainer;
if (this.mInnerPortContainer == null)
{
throw new Exception("NodeView control template not correctly defined.");
}
// Binding the Ports property.
Binding lNodesBinding = new Binding("Ports");
lNodesBinding.Source = this.Content;
lNodesBinding.Mode = BindingMode.OneWay;
this.mInnerPortContainer.SetBinding(ItemsControl.ItemsSourceProperty, lNodesBinding);
}
/// <summary>
/// Initializes an instance of the <see cref="NodeView"/> class.
/// </summary>
public NodeView()
{
this.mInnerPortContainer = null;
this.mBackgroundBackup = null;
this.mIsBackgroundBackupUpdateLocked = false;
}
/// <summary>
/// Method called when the control template is applied.
/// </summary>
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
// Getting the parts of the control.
this.mInnerPortContainer = this.GetTemplateChild(PART_PORT_CONTAINER) as PortContainer;
if (this.mInnerPortContainer == null)
{
throw new Exception("NodeView control template not correctly defined.");
}
// Binding the Ports property.
Binding lNodesBinding = new Binding("Ports");
lNodesBinding.Source = this.Content;
lNodesBinding.Mode = BindingMode.OneWay;
this.mInnerPortContainer.SetBinding(ItemsControl.ItemsSourceProperty, lNodesBinding);
}
/// <summary>
/// Initializes an instance of the <see cref="NodeView"/> class.
/// </summary>
public NodeView()
{
this.mInnerPortContainer = null;
}