Struct Theme 

pub struct Theme { /* private fields */ }

A named collection of styles. Mirrors rich.theme.Theme.

Implementations

impl Theme

pub fn new() -> Self

pub fn get(&self, name: &str) -> Option<&Style>

Look up a style by name.

pub fn insert(&mut self, name: impl Into<String>, style: Style)

Insert or replace a named style.

pub fn get_style(&self, style: &StyleType) -> Result<Style>

Resolve a StyleType against this theme. Port of Console.get_style.

An already-resolved style passes straight through. A name is looked up in the theme first, and only then parsed as a style definition — the order matters, because the default theme itself defines bare words like none, bold and red, and a custom theme has to be able to shadow them.

The lookup is case-sensitive while the parse fallback is not, which reproduces an asymmetry upstream really has: "BOLD" misses the theme but still parses to bold, whereas a theme key "Danger" is never found by a span naming "danger".

pub fn get_style_or_null(&self, style: &StyleType) -> Style

As get_style, but an unresolvable name yields the null style instead of an error. Port of upstream’s get_style(..., default=Style.null()), which is what the render path uses — an unknown name must not blow up a print.

pub fn len(&self) -> usize

How many named styles this theme holds.

pub fn is_empty(&self) -> bool

Whether this theme holds no styles.

pub fn default_theme() -> Self

The complete upstream default theme — every entry of DEFAULT_STYLES.

pub fn default_shared() -> &'static Theme

The shared default theme, for callers that only need to resolve a name (e.g. the built-in highlighters) and have no Console to hand.

Trait Implementations

impl Clone for Theme

fn clone(&self) -> Theme

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Theme

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

Formats the value using the given formatter.

impl Default for Theme

fn default() -> Theme

Returns the “default value” for a type.