Struct zng::undo::history::UndoEntryArgs

pub struct UndoEntryArgs {
    pub info: Vec<(DInstant, Arc<dyn UndoInfo>)>,
    pub op: UndoOp,
    pub cmd: Command,
}

Represents an action in the undo or redo stack.

Fields

info: Vec<(DInstant, Arc<dyn UndoInfo>)>

Info about the action.

Is at least one item, can be more if GROUP_BY_UNDO_INTERVAL_VAR is enabled.

The latest undo action is the last entry in the list.

op: UndoOp

What stack this entry is at.

cmd: Command

The undo or redo command in the correct scope.

Implementations

impl UndoEntryArgs

pub fn timestamp(&self) -> DInstant

Moment the undo action was first registered.

This does not change after redo and undo, it is always the register time.

This is the first timestamp in info.

Trait Implementations

impl Clone for UndoEntryArgs

fn clone(&self) -> UndoEntryArgs

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for UndoEntryArgs

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

Formats the value using the given formatter.

impl PartialEq for UndoEntryArgs

fn eq(&self, other: &UndoEntryArgs) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.