Struct CaptionStyle 

pub struct CaptionStyle { /* private fields */ }

production subtitle style with an explicit safe area and frozen font environment.

Implementations

impl CaptionStyle

pub fn new(safe: Rect) -> Self

Defaults to 30-unit white text, translucent black, padding 12/8 and two lines.

pub fn font_size(self, size: f64) -> Self

Replaces finite font size in (0,4096].

pub fn color(self, color: Color) -> Self

Replaces the base text color.

pub fn background(self, color: Color) -> Self

Replaces the shared backplate color.

pub fn padding(self, horizontal: f64, vertical: f64) -> Self

Replaces nonnegative horizontal/vertical padding, each at most 4096.

pub fn gap(self, gap: f64) -> Self

Replaces the nonnegative gap between simultaneous cues, at most 4096.

pub fn max_lines(self, lines: usize) -> Self

Replaces the per-cue line limit in 1..=8; excess text is rejected.

pub fn keyword(self, word: impl Into<String>, color: Color) -> Self

Adds a grapheme-safe literal keyword; longest match and then insertion order win.

pub fn layout( &self, track: &CaptionTrack, canvas: Size, fonts: &FontLibrary, ) -> Result<CaptionLayout>

Measures with supplied fonts and freezes vector artwork before frame evaluation. At most 1024 cues/128 KiB source and explicit per-cue line/safe-area limits apply.

Trait Implementations

impl Clone for CaptionStyle

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CaptionStyle

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

Formats the value using the given formatter.