private void SynchronizeUndoRedoState()
{
if (m_graphUndoStack == null)
{
return;
}
if (m_graphUndoStack.IsDirtyState())
{
try
{
m_graphUndoStack.RestoreCurrentGraphState();
m_reentrant = true;
ExpressionGraphDirty = true;
model.GetOrCreateGraph().UpdateSubAssets();
EditorUtility.SetDirty(graph);
NotifyUpdate();
m_reentrant = false;
m_graphUndoStack.CleanDirtyState();
}
catch (Exception e)
{
Debug.LogError(e);
Undo.ClearAll();
m_graphUndoStack = new VFXGraphUndoStack(graph);
}
}
else
{
//The graph didn't change by this undo, only, potentially the slot values.
// Any undo could be a slot value undo: update input slot expressions and expression graph values
ExpressionGraphDirty = true;
ExpressionGraphDirtyParamOnly = true;
if (model != null && graph != null)
{
foreach (var element in AllSlotContainerControllers)
{
foreach (var slot in (element.model as IVFXSlotContainer).inputSlots)
{
slot.UpdateDefaultExpressionValue();
}
}
foreach (var parameter in m_ParameterControllers.Keys)
{
parameter.UpdateDefaultExpressionValue();
}
graph.SetExpressionValueDirty();
}
}
}
private void ReleaseUndoStack()
{
m_graphUndoStack = null;
}
private void InitializeUndoStack()
{
m_graphUndoStack = new VFXGraphUndoStack(graph);
}