Struct opengles_graphics::glyph_cache::GlyphCache

pub struct GlyphCache<'a> {
    pub font: Font<'a>,
    /* private fields */
}

A struct used for caching rendered font.

Fields

font: Font<'a>

The font.

Implementations

impl<'a> GlyphCache<'a>

pub fn from_font(font: Font<'a>, settings: TextureSettings) -> Self

Constructs a GlyphCache from a Font.

pub fn new<P>(
    font: P,
    settings: TextureSettings
) -> Result<GlyphCache<'static>, Error>where
    P: AsRef<Path>,

Constructor for a GlyphCache.

pub fn from_bytes(
    font: &'a [u8],
    settings: TextureSettings
) -> Result<GlyphCache<'a>, Error>

Creates a GlyphCache for a font stored in memory.

pub fn preload_chars<I>(&mut self, size: FontSize, chars: I)where
    I: Iterator<Item = char>,

Load all characters in the chars iterator for size

pub fn preload_printable_ascii(&mut self, size: FontSize)

Load all the printable ASCII characters for size. Includes space.

pub fn opt_character(&self, size: FontSize, ch: char) -> Option<Character<'_>>

Return ch for size if it’s already cached. Don’t load. See the preload_* functions.

Trait Implementations

impl<'b> CharacterCache for GlyphCache<'b>

type Texture = Texture

The texture type associated with the character cache.

type Error = Error

The error type associated with the character cache.

fn character<'a>(
    &'a mut self,
    size: FontSize,
    ch: char
) -> Result<Character<'a>, Error>

Get reference to character.

fn width(&mut self, size: u32, text: &str) -> Result<f64, Self::Error>

Return the width for some given text.