Struct zng_ext_undo::UndoManager

pub struct UndoManager {}

Undo-redo app extension.

Services

Services provided by this extension.

• UNDO

Trait Implementations

impl AppExtension for UndoManager

fn event(&mut self, update: &mut EventUpdate)

Called after event_ui.

fn register(&self, info: &mut AppExtensionsInfo)

where Self: Sized,

Register info abound this extension on the info list.

fn init(&mut self)

Initializes this extension.

fn enable_device_events(&self) -> bool

If the application should notify raw device events.

fn event_preview(&mut self, update: &mut EventUpdate)

Called just before event_ui when an event notifies.

fn event_ui(&mut self, update: &mut EventUpdate)

Called just before event.

fn info(&mut self, info_widgets: &mut InfoUpdates)

Called when info rebuild is requested for windows and widgets.

fn update_preview(&mut self)

Called just before update_ui.

fn update_ui(&mut self, update_widgets: &mut WidgetUpdates)

Called just before update.

fn update(&mut self)

Called after every update_ui and info.

fn layout(&mut self, layout_widgets: &mut LayoutUpdates)

Called when layout is requested for windows and widgets.

fn render( &mut self, render_widgets: &mut RenderUpdates, render_update_widgets: &mut RenderUpdates, )

Called when render is requested for windows and widgets.

fn deinit(&mut self)

Called when the application is exiting.

fn boxed(self) -> Box<dyn AppExtensionBoxed>

where Self: Sized,

Gets the extension boxed.

impl Default for UndoManager

fn default() -> UndoManager

Returns the “default value” for a type.