Struct NodeUndoRedoStack 

pub struct NodeUndoRedoStack {
    pub node_id: NodeId,
    pub undo_stack: VecDeque<UndoableOperation>,
    pub redo_stack: VecDeque<UndoableOperation>,
}

Per-node undo/redo stack

Fields

node_id: NodeId

Node ID this stack belongs to

undo_stack: VecDeque<UndoableOperation>

Undo stack (most recent at back)

redo_stack: VecDeque<UndoableOperation>

Redo stack (most recent at back)

Implementations

impl NodeUndoRedoStack

pub fn new(node_id: NodeId) -> Self

pub fn push_undo(&mut self, operation: UndoableOperation)

Push a new operation to the undo stack

pub fn pop_undo(&mut self) -> Option<UndoableOperation>

Pop the most recent operation from undo stack

pub fn push_redo(&mut self, operation: UndoableOperation)

Push an operation to the redo stack (after undo)

pub fn pop_redo(&mut self) -> Option<UndoableOperation>

Pop the most recent operation from redo stack

pub fn can_undo(&self) -> bool

Check if undo is available Check if undo is available

pub fn can_redo(&self) -> bool

Check if redo is available

pub fn peek_undo(&self) -> Option<&UndoableOperation>

Peek at the most recent undo operation without removing it

pub fn peek_redo(&self) -> Option<&UndoableOperation>

Peek at the most recent redo operation without removing it

Trait Implementations

impl Clone for NodeUndoRedoStack

fn clone(&self) -> NodeUndoRedoStack

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for NodeUndoRedoStack

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.