Struct Directional 

pub struct Directional(pub Direction);

Reveal the art as a clean directional wipe, ranking each cell by its position along one axis. Predictable and intuitive: a tall dragon paints from the top, a wide serpent from the left, and nothing shows until the wipe reaches it. This is the Loader default.

Tuple Fields

0: Direction

Implementations

impl Directional

pub fn ltr() -> Self

Left to right: the wipe follows a left-to-right reader’s eye.

pub fn rtl() -> Self

Right to left, for Arabic, Hebrew, Persian, and Urdu layouts.

pub fn reading() -> Self

Wipe along the reading direction of the user’s locale, so it follows the reader’s eye. Falls back to ltr when the locale cannot be determined.

The locale comes from LC_ALL or LANG where those are set, and from the user’s default locale on Windows, where they usually are not. Call ltr or rtl directly when your program already knows its own text direction; that is always more reliable than sniffing.

Trait Implementations

impl Clone for Directional

fn clone(&self) -> Directional

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Directional

impl Debug for Directional

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

Formats the value using the given formatter.

impl Default for Directional

fn default() -> Self

Auto: top to bottom unless the art reads much wider than it is tall.

impl Ordering for Directional

fn rank(&self, art: &Art) -> RankMap