Struct UndoHistory 

pub struct UndoHistory {
    pub undo_stack: VecDeque<EditorAction>,
    pub redo_stack: VecDeque<EditorAction>,
    pub max_history: usize,
}

Fields

undo_stack: VecDeque<EditorAction>

redo_stack: VecDeque<EditorAction>

max_history: usize

Implementations

impl UndoHistory

pub fn new(max_history: usize) -> Self

pub fn push(&mut self, action: EditorAction)

pub fn can_undo(&self) -> bool

pub fn can_redo(&self) -> bool

pub fn undo(&mut self) -> Option<EditorAction>

pub fn redo(&mut self) -> Option<EditorAction>

Trait Implementations

impl Clone for UndoHistory

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UndoHistory

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

Formats the value using the given formatter.