protected virtual BaseModelElementTreeViewModel AddChildElement(ElementLink relationship, ModelElement element, bool isInDeserialization)
{
if (element == null || relationship == null)
{
return(null);
}
// check if already added
if (!isInDeserialization)
{
foreach (Tum.PDE.ToolFramework.Modeling.Visualization.ViewModel.ModelTree.BaseModelElementTreeViewModel vm in this.Children)
{
// this can actually happen without any error occuring, because it depends on
// the order of transactions.. e.g.:
// 1. Add parent in first transaction. Add child in second --> this clause will not occur.
// 2. Add parent and child in one transaction. This clause will occur, because parent
// automatically adds its children and there is no easy way of preventing this method from
// beeing called.
if (vm.Element.Id == element.Id)
{
return(vm);
}
}
}
// create new view model for this specified element
ModelElementTreeViewModel viewModel = this.ViewModelStore.Factory.CreateModelElementTreeViewModel(element, relationship,
GetTargetDomainRole(relationship.GetDomainRelationship()).Id, this, DoHookUpEvents, DoCreateContextMenus, this.MainModelTreeViewModel);
if (viewModel == null)
{
throw new System.ArgumentNullException("Could not resolve VM for " + element.ToString());
}
// add new VModellvariante into children collection
this.AddElementToCollection(relationship, viewModel);
// set selection to new element
if (!isInDeserialization)
{
if (this.MainModelTreeViewModel != null)
{
if (this.MainModelTreeViewModel.IsActiveView && !this.ViewModelStore.InLoad)
{
//viewModel.IsSelected = true;
if (viewModel.Parent != null)
{
if (!viewModel.Parent.IsExpanded)
{
viewModel.Parent.IsExpanded = true;
}
}
}
}
}
return(viewModel);
}
/// <summary>
/// Modify the context menu view model by adding custom menu items.
/// </summary>
/// <param name="contextMenu">Context menu view model containing automatically added menu items.</param>
/// <param name="element">Host element.</param>
/// <param name="processedProviders">Providers that have already been visited.</param>
public virtual void ProcessContextMenu(MenuItemViewModel contextMenu, ModelElementTreeViewModel element, List <IModelTreeContextMenuProvider> processedProviders)
{
processedProviders.Add(this);
foreach (IModelTreeContextMenuProvider p in this.InjectedContextMenuProviders)
{
if (!processedProviders.Contains(p))
{
p.ProcessContextMenu(contextMenu, element, processedProviders);
}
}
}
/// <summary>
/// Modify the context menu view model by adding custom menu items.
/// </summary>
/// <param name="contextMenu">Context menu view model containing automatically added menu items.</param>
/// <param name="element">Host element.</param>
public void ProcessContextMenu(MenuItemViewModel contextMenu, ModelElementTreeViewModel element)
{
this.ProcessContextMenu(contextMenu, element, new List <IModelTreeContextMenuProvider>());
}
public ModelElementTreeViewModel(ViewModelStore viewModelStore, ModelElement element, ElementLink link, System.Guid domainRoleId, ModelElementTreeViewModel parent, bool bHookUpEvents, bool bCreateContextMenus, MainModelTreeViewModel mainModelTreeVm)
: base(viewModelStore, element, link, domainRoleId, parent, bHookUpEvents, bCreateContextMenus, mainModelTreeVm)
{
}
/// <summary> /// Creates the tree view model for the given model element. /// </summary> /// <param name="element">VModell represented by this view model.</param> /// <param name="link">Element link, targeting the hosted element.</param> /// <param name="domainRoleId">Domain role id of the role that the hosted element belongs to.</param> /// <param name="parent">Parent of this view model.</param> /// <param name="bHookUpEvents">Hook up into model events to update the created view model on changes in model if true.</param> /// <param name="bCreateContextMenus">Creates context menus for adding and deleting model elements if true.</param> /// <param name="mainModelTreeVm">Model tree view model, this element vm belongs to.</param> public abstract ModelElementTreeViewModel CreateModelElementTreeViewModel(ModelElement element, ElementLink link, System.Guid domainRoleId, ModelElementTreeViewModel parent, bool bHookUpEvents, bool bCreateContextMenus, MainModelTreeViewModel mainModelTreeVm);
/// <summary>
/// Modify the context menu view model by adding custom menu items.
/// </summary>
/// <param name="contextMenu">Context menu view model containing automatically added menu items.</param>
/// <param name="element">Host element.</param>
public void ProcessContextMenu(MenuItemViewModel contextMenu, ModelElementTreeViewModel element)
{
this.ProcessContextMenu(contextMenu, element, new List<IModelTreeContextMenuProvider>());
}
/// <summary>
/// Modify the context menu view model by adding custom menu items.
/// </summary>
/// <param name="contextMenu">Context menu view model containing automatically added menu items.</param>
/// <param name="element">Host element.</param>
/// <param name="processedProviders">Providers that have already been visited.</param>
public virtual void ProcessContextMenu(MenuItemViewModel contextMenu, ModelElementTreeViewModel element, List<IModelTreeContextMenuProvider> processedProviders)
{
processedProviders.Add(this);
foreach (IModelTreeContextMenuProvider p in this.InjectedContextMenuProviders)
if( !processedProviders.Contains(p) )
p.ProcessContextMenu(contextMenu, element, processedProviders);
}
public ModelElementTreeViewModel(ViewModelStore viewModelStore, ModelElement element, ElementLink link, System.Guid domainRoleId, ModelElementTreeViewModel parent, bool bHookUpEvents, bool bCreateContextMenus, MainModelTreeViewModel mainModelTreeVm)
: base(viewModelStore, element, link, domainRoleId, parent, bHookUpEvents, bCreateContextMenus, mainModelTreeVm)
{
}
