Enum ListDirection 

#[non_exhaustive]
pub enum ListDirection {
    TopToBottom,
    BottomToTop,
}

Which end of a List’s area its items render from.

ListDirection::TopToBottom is the default: items[state.offset()] draws at the top row and later items draw downward, the list’s only behavior before this type existed. ListDirection::BottomToTop draws the same window from the bottom of the area instead: items[state.offset()] draws at the bottom row and later items draw upward, for a chat/log-style list that grows toward the top.

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.

TopToBottom

items[state.offset()] draws at the top of the area; later items draw downward.

BottomToTop

items[state.offset()] draws at the bottom of the area; later items draw upward.

Trait Implementations

impl Clone for ListDirection

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ListDirection

impl Debug for ListDirection

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

Formats the value using the given formatter.

impl Default for ListDirection

fn default() -> Self

Returns the “default value” for a type.

impl Eq for ListDirection

impl Hash for ListDirection

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ListDirection

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ListDirection