private bool PasteShapes()
{
// Get prototypes from clipboard, if they exist
IDataObject dataObject = Clipboard.GetDataObject();
ElementGroupPrototype elementGroupPrototype = ElementOperations.GetElementGroupPrototype(ServiceProvider, dataObject);
// if we're not pasting on the diagram (i.e., the ModelRoot), we're pasting the prototype
if (TargetElement is ModelRoot &&
CurrentModelingDocView is EFModelDocView efModelDocView &&
efModelDocView.Diagram is EFModelDiagram currentDiagram &&
currentDiagram?.Store != null &&
elementGroupPrototype != null)
{
Store store = efModelDocView.Diagram.Store;
// get matching elements from the store
List <ModelElement> modelElements = elementGroupPrototype.ProtoElements
.Select(p => store.ElementDirectory.FindElement(p.ElementId))
.Where(e => e != null)
.ToList();
if (modelElements.Any())
{
List <ModelClass> modelClasses = modelElements.OfType <ModelClass>().ToList();
List <Comment> comments = modelElements.OfType <Comment>().ToList();
List <ModelElement> everythingElse = modelElements.Except(modelClasses).Except(comments).ToList();
List <ShapeElement> newShapes = new List <ShapeElement>();
using (Transaction t = store.TransactionManager.BeginTransaction())
{
// paste classes and comments first to ensure that any possible connector end is present before the connectors arrive
newShapes.AddRange(modelClasses.Select(e => EFModelDiagram.AddExistingModelElement(currentDiagram, e)));
newShapes.AddRange(comments.Select(e => EFModelDiagram.AddExistingModelElement(currentDiagram, e)));
newShapes.AddRange(everythingElse.Select(e => EFModelDiagram.AddExistingModelElement(currentDiagram, e)));
newShapes = newShapes.Where(s => s != null).ToList();
// if nothing got pasted (because it's already there), we succeeded in our paste but didn't really change
// the display, so nothing further needs done
if (!newShapes.Any())
{
return(true);
}
t.Commit();
}
using (Transaction t = store.TransactionManager.BeginTransaction())
{
Commands.LayoutDiagram(currentDiagram, newShapes);
t.Commit();
}
currentDiagram.Invalidate();
return(true);
}
}
return(false);
}
private bool PasteShapes(List <ModelElement> modelElements)
{
if (TargetElement is ModelRoot &&
CurrentModelingDocView is EFModelDocView efModelDocView &&
efModelDocView.Diagram is EFModelDiagram currentDiagram &&
currentDiagram.Store != null &&
modelElements.Any())
{
Store store = efModelDocView.Diagram.Store;
List <ModelClass> modelClasses = modelElements.OfType <ModelClass>().ToList();
List <Comment> comments = modelElements.OfType <Comment>().ToList();
List <ModelElement> everythingElse = modelElements.Except(modelClasses).Except(comments).ToList();
List <ShapeElement> newShapes = new List <ShapeElement>();
using (Transaction t = store.TransactionManager.BeginTransaction())
{
// paste classes and comments first to ensure that any possible connector end is present before the connectors arrive
newShapes.AddRange(modelClasses.Select(e => EFModelDiagram.AddExistingModelElement(currentDiagram, e)));
newShapes.AddRange(comments.Select(e => EFModelDiagram.AddExistingModelElement(currentDiagram, e)));
newShapes = newShapes.Where(s => s != null).ToList();
// select and show the new or existing shape. Search, in order, classes, comments, then everything else
ModelElement firstElement = modelClasses.FirstOrDefault() ?? comments.FirstOrDefault() ?? everythingElse.FirstOrDefault();
if (firstElement != null)
{
currentDiagram.ActiveDiagramView.SelectModelElement(firstElement, true);
}
// if nothing got pasted (because it's already there), we succeeded in our paste but didn't really change
// the display, so nothing further needs done
if (!newShapes.Any())
{
return(false);
}
t.Commit();
}
//using (Transaction t = store.TransactionManager.BeginTransaction())
//{
// Commands.LayoutDiagram(currentDiagram, newShapes);
// t.Commit();
//}
currentDiagram.Invalidate();
return(true);
}
return(false);
}
private void ObjectModelBrowser_OnNodeMouseDoubleClick(object sender, TreeNodeMouseClickEventArgs e)
{
if (e.Node is ExplorerTreeNode elementNode && elementNode.RepresentedElement != null)
{
ModelElement element = elementNode.RepresentedElement;
if (ModelingDocData is EFModelDocData docData)
{
Diagram diagram = docData.CurrentDocView?.CurrentDiagram;
if (diagram != null && diagram is EFModelDiagram efModelDiagram && !element.LocateInActiveDiagram(true))
{
EFModelDiagram.AddExistingModelElement(efModelDiagram, element);
}
}
}
}