Struct SoftwareTextFontSet 

pub struct SoftwareTextFontSet { /* private fields */ }

The faces that text resolves against, with the choice of the default face.

Implementations

impl SoftwareTextFontSet

pub fn empty() -> Self

A set with no faces.

pub fn from_font(font: SoftwareTextFont) -> Self

A set holding only font.

pub fn from_faces(fonts: Vec<SoftwareTextFont>) -> Self

Build a set from already-parsed faces, keeping the default-face choice and the registered-family index in one place.

pub fn with_installed_faces(&self) -> Option<Self>

This set with the faces installed through install_font_file after its own, or None while no face was installed since it was built.

Installed faces only join the end, so every face keeps its index and a style resolves to the face it resolved to before; the installed faces cover the characters the set’s own faces lack.

pub fn from_fonts_or_default(fonts: &[&'static [u8]]) -> Self

Parses each of fonts and keeps those that parse. When none parses, the set holds the embedded default font if the build has it, and is empty otherwise.

pub fn default_font(&self) -> Option<&SoftwareTextFont>

The face that serves text with no family preference, or None for an empty set.

pub fn faces(&self) -> &[SoftwareTextFont]

Every face in the set, in registration order.

pub fn has_registered_family(&self, family: &FontFamily) -> bool

Whether any face in the set was registered under family.

pub fn resolve(&self, style: &TextStyle) -> Option<&SoftwareTextFont>

Resolves the family and style, then uses Compose’s directional CSS weight matching: lighter first below 400, heavier first above 500, and weights up to 500 before lighter or heavier alternatives in the 400–500 interval.

Trait Implementations

impl Clone for SoftwareTextFontSet

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.