This sample demonstrates viewing, deleting, limiting diagram history and groups diagram actions and stores it as a single entry in the history manager.
Diagram history handles all the diagram history. Using
stackLimit property of the history manager
we can limit the no. of entries that can be stored on the diagram history. Also, we can get the list of entries in the undo
list and redo list using
redoStack. Also, diagram history manager has the
option to group the action as a single entry with the help of the
endGroupAction public Api. Also, we can add the custom entries to the diagram history. method can be used to print the diagrams.