public StateContainerEditor()
{
InitializeComponent();
this.modelItemToUIElement = new Dictionary<ModelItem, UIElement>();
this.shapeLocations = new HashSet<Point>();
this.listenedTransitionCollections = new HashSet<ModelItem>();
this.transitionModelItemsAdded = new List<ModelItem>();
this.transitionModelItemsRemoved = new List<ModelItem>();
Binding readOnlyBinding = new Binding();
readOnlyBinding.RelativeSource = new RelativeSource(RelativeSourceMode.FindAncestor, typeof(DesignerView), 1);
readOnlyBinding.Path = new PropertyPath(DesignerView.IsReadOnlyProperty);
readOnlyBinding.Mode = BindingMode.OneWay;
this.SetBinding(IsReadOnlyProperty, readOnlyBinding);
this.Loaded += (s, e) =>
{
if (this.ShouldInitialize())
{
WorkflowViewElement parent = VisualTreeUtils.FindVisualAncestor<WorkflowViewElement>(this);
this.ModelItem = parent.ModelItem;
this.StateMachineModelItem = StateContainerEditor.GetStateMachineModelItem(this.ModelItem);
this.Context = parent.Context;
this.compositeViewEvents = parent;
if (this.compositeViewEvents != null)
{
this.compositeViewEvents.RegisterDefaultCompositeView(this);
}
if (!this.populated)
{
this.Populate();
Selection.Subscribe(this.Context, this.OnSelectionChangedCallback);
this.populated = true;
}
}
};
this.Unloaded += (s, e) =>
{
if (this.compositeViewEvents != null)
{
(compositeViewEvents).UnregisterDefaultCompositeView(this);
this.compositeViewEvents = null;
}
if (this.populated)
{
this.Cleanup();
Selection.Unsubscribe(this.Context, this.OnSelectionChangedCallback);
this.populated = false;
}
this.StateMachineModelItem = null;
this.activeSrcConnectionPoint = null;
this.activeDestConnectionPointForAutoSplit = null;
this.activeSrcConnectionPointForAutoSplit = null;
// selectedConnector is a placeholder for the last connector selected.
this.selectedConnector = null;
// Used for connector creation
this.lastConnectionPointMouseUpElement = null;
this.activeConnectionPointsAdorner = null;
this.activeConnectionPoint = null;
this.initialNode = null;
// The ModelItem for the initial node
this.initialModelItem = null;
BindingOperations.ClearBinding(this, IsReadOnlyProperty);
};
}
protected override void OnInitialized(EventArgs e)
{
base.OnInitialized(e);
this.AllowDrop = true;
this.Content = containerGrid;
ICompositeViewEvents containerEvents = null;
bool isDefault = false;
this.Loaded += (s, eventArgs) =>
{
isDefault = this.IsDefaultContainer;
DependencyObject parent = VisualTreeHelper.GetParent(this);
while (null != parent && !typeof(ICompositeViewEvents).IsAssignableFrom(parent.GetType()))
{
parent = VisualTreeHelper.GetParent(parent);
}
containerEvents = parent as ICompositeViewEvents;
if (null != containerEvents)
{
if (isDefault)
{
containerEvents.RegisterDefaultCompositeView(this);
}
else
{
containerEvents.RegisterCompositeView(this);
}
}
this.shouldSetFocus = true;
if (this.AutoWrapInSequenceEnabled)
{
// spacer and placer holder
this.spacerHelper = new SpacerHelper(this);
}
};
this.Unloaded += (s, eventArgs) =>
{
if (null != containerEvents)
{
if (isDefault)
{
containerEvents.UnregisterDefaultCompositeView(this);
}
else
{
containerEvents.UnregisterCompositeView(this);
}
}
this.shouldSetFocus = false;
if (this.AutoWrapInSequenceEnabled)
{
if (this.spacerHelper != null)
{
this.spacerHelper.Unload();
this.spacerHelper = null;
}
}
};
}
protected override void OnInitialized(EventArgs e)
{
base.OnInitialized(e);
this.AllowDrop = true;
this.Content = outerGrid;
if (this.ItemsPanel != null)
{
this.panel.ItemsPanel = this.ItemsPanel;
}
ICompositeViewEvents containerEvents = null;
bool isDefault = false;
this.Loaded += (s, eventArgs) =>
{
isDefault = this.IsDefaultContainer;
selectedSpacerIndex = addAtEndMarker;
DependencyObject parent = VisualTreeHelper.GetParent(this);
while (null != parent && !typeof(ICompositeViewEvents).IsAssignableFrom(parent.GetType()))
{
parent = VisualTreeHelper.GetParent(parent);
}
containerEvents = parent as ICompositeViewEvents;
if (null != containerEvents)
{
if (isDefault)
{
containerEvents.RegisterDefaultCompositeView(this);
}
else
{
containerEvents.RegisterCompositeView(this);
}
}
if (this.Items != null)
{
//UnRegistering because of 137896: Inside tab control multiple Loaded events happen without an Unloaded event.
this.Items.CollectionChanged -= new NotifyCollectionChangedEventHandler(OnCollectionChanged);
this.Items.CollectionChanged += new NotifyCollectionChangedEventHandler(OnCollectionChanged);
}
if (populateOnLoad)
{
this.PopulateContent();
}
};
this.Unloaded += (s, eventArgs) =>
{
if (null != containerEvents)
{
if (isDefault)
{
containerEvents.UnregisterDefaultCompositeView(this);
}
else
{
containerEvents.UnregisterCompositeView(this);
}
}
if (this.Items != null)
{
this.Items.CollectionChanged -= new NotifyCollectionChangedEventHandler(OnCollectionChanged);
}
populateOnLoad = true;
};
}
public StateContainerEditor()
{
InitializeComponent();
this.DataContext = this;
this.modelItemToUIElement = new Dictionary<ModelItem, UIElement>();
this.shapeLocations = new HashSet<Point>();
this.listenedTransitionCollections = new HashSet<ModelItem>();
this.transitionModelItemsAdded = new List<ModelItem>();
Binding readOnlyBinding = new Binding();
readOnlyBinding.RelativeSource = new RelativeSource(RelativeSourceMode.FindAncestor, typeof(DesignerView), 1);
readOnlyBinding.Path = new PropertyPath(DesignerView.IsReadOnlyProperty);
readOnlyBinding.Mode = BindingMode.OneWay;
this.SetBinding(IsReadOnlyProperty, readOnlyBinding);
this.Loaded += (s, e) =>
{
if (this.ShouldInitialize())
{
WorkflowViewElement parent = StateContainerEditor.GetVisualAncestor<WorkflowViewElement>(this);
this.ModelItem = parent.ModelItem;
this.StateMachineModelItem = StateContainerEditor.GetStateMachineModelItem(this.ModelItem);
this.Context = parent.Context;
this.compositeViewEvents = parent;
if (this.compositeViewEvents != null)
{
this.compositeViewEvents.RegisterDefaultCompositeView(this);
}
if (!this.populated)
{
this.Populate();
this.populated = true;
}
}
};
this.Unloaded += (s, e) =>
{
if (this.compositeViewEvents != null)
{
(compositeViewEvents).UnregisterDefaultCompositeView(this);
this.compositeViewEvents = null;
}
if (this.populated)
{
this.Cleanup();
this.populated = false;
}
};
}
