Enum Fill 

#[non_exhaustive]
pub enum Fill {
    Page,
    Raised,
    Overlay,
    Well,
    Sunken,
}

A surface intent a region is filled with.

#[non_exhaustive], so a renderer must carry a wildcard arm and a new member is additive rather than breaking. Added 0.4.0, after Sunken (an additive member, 0.3.0) hard-broke makeover-tui and makeover-immediate at compile time and left neither able to move until both published. The vocabulary exists to grow and the renderers exist to disagree about how much of it they answer, so growth must not be a lockstep event. The renderer’s wildcard is not a hole: Fill is resolved through a fallible lookup, and a missing intent is answered with structure rather than with a substituted colour.

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.

Page

The page behind everything.

Raised

A surface lifted off the page: cards, controls, menus, toasts.

Overlay

A surface floating above the page rather than resting on it.

Well

The inside of a well.

Sunken

A surface set back from the one it sits on, by colour and nothing else.

Not a well. A well is a hole with an edge, and the two are authored in opposite directions: makeover derives surface-well by inverting against the theme’s own content colour, while surface-sunken is authored and free to sit darker than raised (goingson’s does). Naming only the well left the recessed-with-no-edge surface unsayable, which is what an unchosen tab is: it recedes so the chosen one can come forward, and it carries no bevel of its own.

Added 0.3.0, from goingson’s tab strip, which hand-writes exactly this and could not delete the line because no member described it.

Trait Implementations

impl Clone for Fill

fn clone(&self) -> Fill

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Fill

impl Debug for Fill

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

Formats the value using the given formatter.

impl Eq for Fill

impl Hash for Fill

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 Intent for Fill

fn token(self) -> &'static str

The makeover intent token this resolves against.

impl PartialEq for Fill

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Fill