Struct EditHistory 

pub struct EditHistory { /* private fields */ }

Edit history for undo/redo operations.

Implementations

impl EditHistory

pub fn new() -> Self

Create a new edit history.

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

Add an action to the history.

pub fn can_undo(&self) -> bool

Check if undo is available.

pub fn can_redo(&self) -> bool

Check if redo is available.

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

Get the action to undo.

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

Get the action to redo.

pub fn clear(&mut self)

Clear history.

pub fn len(&self) -> usize

Get history size.

pub fn is_empty(&self) -> bool

Check if history is empty.

Trait Implementations

impl Debug for EditHistory

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

Formats the value using the given formatter.

impl Default for EditHistory

fn default() -> Self

Returns the “default value” for a type.