public EntityViewModel Duplicate()
{
var flags = SubHierarchyCloneFlags.GenerateNewIdsForIdentifiableObjects;
var clonedHierarchy = EntityHierarchyPropertyGraph.CloneSubHierarchies(Asset.Session.AssetNodeContainer, Asset.Asset, AssetSideEntity.Id.Yield(), flags, out Dictionary <Guid, Guid> idRemapping);
AssetPartsAnalysis.GenerateNewBaseInstanceIds(clonedHierarchy);
var addedRoot = clonedHierarchy.Parts[clonedHierarchy.RootParts.Single().Id];
addedRoot.Folder = (Parent as EntityFolderViewModel)?.Path;
// rename the entity to avoid having the same names
if (Parent == null)
{
throw new InvalidOperationException($"{nameof(Parent)} cannot be null");
}
addedRoot.Entity.Name = EntityFactory.ComputeNewName(Parent, addedRoot.Entity.Name);
Asset.AssetHierarchyPropertyGraph.AddPartToAsset(clonedHierarchy.Parts, addedRoot, (Parent.Owner as EntityViewModel)?.AssetSideEntity, Parent.Owner.IndexOfEntity(this) + 1);
var cloneId = addedRoot.Entity.Id;
// The view model should already exist at that point
var partId = new AbsoluteId(Asset.Id, cloneId);
var viewModel = (EntityViewModel)Editor.FindPartViewModel(partId);
// TODO: Offset a bit (by 1 scene unit horizontally?) the cloned entity so it appears distincly from the source entity
return(viewModel);
}
private static string Copy([NotNull] ICopyPasteService service, [NotNull] EntityHierarchyPropertyGraph assetGraph, [NotNull] IEnumerable <EntityDesign> commonRoots)
{
// copy selected hierarchy
var hierarchy = EntityHierarchyPropertyGraph.CloneSubHierarchies(assetGraph.Container.NodeContainer, assetGraph.Asset, commonRoots.Select(r => r.Entity.Id), SubHierarchyCloneFlags.None, out _);
// visitor on this temporary asset
var text = service.CopyFromAsset(assetGraph, assetGraph.Id, hierarchy, false);
return(text);
}
private static void Paste([NotNull] ICopyPasteService service, string text, [NotNull] EntityHierarchyPropertyGraph assetGraph, EntityDesign target, string folderName)
{
var data = service.DeserializeCopiedData(text, assetGraph.Asset, typeof(Entity));
Assert.NotNull(data);
Assert.NotNull(data.Items);
Assert.Equal(1, data.Items.Count);
var item = data.Items[0];
Assert.NotNull(item);
Assert.NotNull(item.Data);
Assert.NotNull(item.Processor);
var targetNode = target != null?assetGraph.Container.NodeContainer.GetNode(target.Entity) : assetGraph.RootNode;
var nodeAccessor = new NodeAccessor(targetNode, NodeIndex.Empty);
var propertyContainer = new PropertyContainer {
{ EntityHierarchyPasteProcessor.TargetFolderKey, folderName }
};
item.Processor.Paste(item, assetGraph, ref nodeAccessor, ref propertyContainer);
}
