Trait zng::undo::UndoSelector

pub trait UndoSelector: Sealed {
    type Select: UndoSelect;

    // Required method
    fn select(self, op: UndoOp) -> Self::Select;
}

Represents a type that can select actions for undo or redo once.

This API is sealed, only core crate can implement it.

See UNDO::undo_select for more details.

Required Associated Types

type Select: UndoSelect

Selection collector.

Required Methods

fn select(self, op: UndoOp) -> Self::Select

Start selecting action for the op.

Implementations on Foreign Types

impl UndoSelector for u32

type Select = u32

fn select(self, op: UndoOp) -> <u32 as UndoSelector>::Select

impl UndoSelector for Duration

type Select = UndoSelectInterval

fn select(self, op: UndoOp) -> <Duration as UndoSelector>::Select

Implementors

impl UndoSelector for DInstant

type Select = UndoSelectLtEq