Struct UndoManager 

pub struct UndoManager {
    pub max_undo: usize,
    /* private fields */
}

Fields

max_undo: usize

Implementations

impl UndoManager

pub fn new() -> Self

pub fn add_undo(&mut self, atom: ProjectUndoAtom, ctx: &mut TheContext)

pub fn mark_saved(&mut self)

pub fn set_undo_state_to_ui(&self, ctx: &mut TheContext)

pub fn undo( &mut self, server_ctx: &mut ServerContext, project: &mut Project, ui: &mut TheUI, ctx: &mut TheContext, )

pub fn redo( &mut self, server_ctx: &mut ServerContext, project: &mut Project, ui: &mut TheUI, ctx: &mut TheContext, )

pub fn can_save(&self, ctx: &mut TheContext)

Checks if the undo manager is empty and disables the save buttons if it is.

pub fn has_undo(&self) -> bool

Checks if the undo manager has any undoable actions.

pub fn has_unsaved(&self) -> bool

Returns true if current state differs from the last saved checkpoint.

Trait Implementations

impl Clone for UndoManager

fn clone(&self) -> UndoManager

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UndoManager

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

Formats the value using the given formatter.

impl Default for UndoManager

fn default() -> Self

Returns the “default value” for a type.