#include <node_undo.h>

Detailed Description

GraphSetUndoMode is an RAII-based convenience wrapper to ensure modifications done to a node graph do not interfere with other components with write access to the same node graph.

The life-time of the instance should enclose the node graph modification:

MAXON_SCOPE // My graph modification.
{
  maxon::nodes::GraphSetUndoMode undo(node.GetGraph());
  auto transaction = node.GetGraph().BeginTransaction() iferr_return;
  .. // The change applied to the node graph.
  transaction.Commit() iferr_return;
}

Public Member Functions
	GraphSetUndoMode (const GraphModelRef &graph)

	~GraphSetUndoMode ()

Private Attributes
const GraphModelRef &	_graph

Bool	_previous

Constructor & Destructor Documentation

◆ GraphSetUndoMode()

GraphSetUndoMode ( const GraphModelRef & graph )

explicit

Constructs the RAII-based wrapper.

Parameters

[in] graph The node graph that is to be modified.

◆ ~GraphSetUndoMode()

~GraphSetUndoMode ( )

Resets the undo state of the specified node graph.

Member Data Documentation

◆ _graph

const GraphModelRef& _graph

private

◆ _previous

Bool _previous