Struct CommandStack 

pub struct CommandStack { /* private fields */ }

Implementations

impl CommandStack

pub fn new(max_depth: usize) -> Self

pub fn can_undo(&self) -> bool

pub fn can_redo(&self) -> bool

pub fn execute(&mut self, cmd: Command, score: &mut Score) -> Result<(), Error>

pub fn undo(&mut self, score: &mut Score) -> Result<ChangeHint, Error>

pub fn redo(&mut self, score: &mut Score) -> Result<ChangeHint, Error>

pub fn history_commands(&self) -> Vec<Command>

Return the commands applied so far, in execution order. Suitable for use with [ScoreEngine::export_history].

pub fn undo_label(&self) -> Option<String>

Label of the command that would be undone next, for UI display (e.g. “Undo: Add Note”).

pub fn redo_label(&self) -> Option<String>

Label of the command that would be redone next, for UI display (e.g. “Redo: Add Note”).

pub fn undo_key(&self) -> Option<String>

i18n key of the command that would be undone next.

pub fn redo_key(&self) -> Option<String>

i18n key of the command that would be redone next.

pub fn batch_execute( &mut self, cmds: Vec<Command>, score: &mut Score, ) -> Result<(), Error>

Apply a batch of commands as a single undo entry (rollback-safe).

pub fn batch_execute_labeled( &mut self, cmds: Vec<Command>, label: String, score: &mut Score, ) -> Result<(), Error>

Apply a batch with an explicit undo-label, as a single rollback-safe entry.

The label appears as the command_key for undo/redo UI (e.g. "ApplyAI").