Enum Caption 

pub enum Caption {
    Shown,
    Hidden,
}

What an image’s one authored string is doing on the page.

SwiftUI keeps three things apart — accessibilityLabel for a reader that cannot see, .help for the pointer, and a caption you compose out of a Text under the picture. Markdown has one slot for all three, so this says which of them it is playing here rather than in the document, where it is the same string either way.

A named choice rather than a bool, so a surface that wants a third answer gets a variant instead of a second flag.

Variants

Shown

Under the picture, where a caret can sit in it. The editor’s shape.

Hidden

Kept by the document and painted nowhere — a picture on its own.

Trait Implementations

impl Clone for Caption

fn clone(&self) -> Caption

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Caption

impl Debug for Caption

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

Formats the value using the given formatter.

impl Default for Caption

fn default() -> Caption

Returns the “default value” for a type.

impl Eq for Caption

impl PartialEq for Caption

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Caption