private bool HandleTogglePreview(GraphCommand command)
{
uint bubbleId = (uint)command.GetArgument(0);
if (bubbleId == uint.MaxValue)
{
return(ToggleAllPreviews());
}
PreviewBubble previewBubble = bubbleCollection[bubbleId] as PreviewBubble;
if (previewBubble == null)
{
return(false);
}
VisualNode node = GetVisualNode(previewBubble.OwnerId);
if (node == null)
{
return(false);
}
List <IVisualNode> nodeList = new List <IVisualNode>();
nodeList.Add(node);
undoRedoRecorder.BeginGroup();
undoRedoRecorder.RecordNodeModificationForUndo(nodeList);
undoRedoRecorder.EndGroup();
if (node.NodeStates.HasFlag(States.PreviewHidden))
{
node.ClearState(States.PreviewHidden);
CurrentSynchronizer.BeginQueryNodeValue(node.NodeId);
}
else
{
node.SetNodeState(States.PreviewHidden);
}
previewBubble.Collapse(node.NodeStates.HasFlag(States.PreviewHidden));
return(true);
}
private void CreateNodeInternal(VisualNode node, double x, double y)
{
if (null == node)
throw new ArgumentNullException("node");
if (CoreComponent.Instance.StudioSettings.SuppressPreview)
node.SetNodeState(States.PreviewHidden);
node.X = x;
node.Y = y;
node.Compose(); // Just to compute the dimension.
DeltaNodes deltaNodes = new DeltaNodes();
deltaNodes.AppendToAddedNodes(node);
if (node.VisualType != NodeType.CodeBlock)
{
bool visualOnlyNode = (node.VisualType == NodeType.Condensed ||
(node.VisualType == NodeType.Render));
this.undoRedoRecorder.BeginGroup();
this.undoRedoRecorder.RecordRuntimeStatesForUndo(this.graphProperties.RuntimeStates);
this.undoRedoRecorder.RecordNodeCreationForUndo(deltaNodes.AddedNodes);
this.graphProperties.RuntimeStates.AddVariablesDefinedInNode(node, false);
if (false == visualOnlyNode)
{
List<IVisualNode> modifiedNodes = new List<IVisualNode>();
EstablishImplicitConnections(modifiedNodes);
deltaNodes.AppendToModifiedNodes(modifiedNodes);
}
this.undoRedoRecorder.EndGroup();
if (false == visualOnlyNode)
this.SynchronizeToLiveRunner(deltaNodes);
}
this.UpdateDirtyNodes();
node.PositionAtCenter(node.NodeId);
}