Enum GridLayoutEvent 

#[non_exhaustive]
pub enum GridLayoutEvent {
    Change(Vec<GridArea>),
    Select(Option<SharedString>),
}

Emitted by GridLayoutState when the layout changes.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Change(Vec<GridArea>)

A drag, a resize, a keyboard command, or GridLayoutState::move_item or GridLayoutState::resize_item produced a new layout, carried here so the application can persist it. GridLayoutState::set_areas does not emit this: the application already holds the layout it set.

Select(Option<SharedString>)

The user selected an item — by pressing it, or with Tab or Shift-Tab — carried here so a view that follows the selection, such as a settings panel, need not watch every redraw. It is emitted only when the selection changes; GridLayoutState::set_selected_item does not emit it, as the application already knows what it selected.

Trait Implementations

impl Clone for GridLayoutEvent

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GridLayoutEvent

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

Formats the value using the given formatter.

impl EventEmitter<GridLayoutEvent> for GridLayoutState

impl PartialEq for GridLayoutEvent

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for GridLayoutEvent