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FontAtlas

yog_api::book::font

Struct FontAtlas 

Source 
pub struct FontAtlas {
    pub pixels: Vec<u8>,
    pub atlas_size: u32,
    pub glyphs: HashMap<char, GlyphInfo>,
    pub line_height: f32,
}
Expand description

Built glyph atlas: RGBA8 pixel buffer + glyph map. Upload pixels to GPU via ctx.create_texture_rgba() to get a GL handle.

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§pixels: Vec<u8>§atlas_size: u32§glyphs: HashMap<char, GlyphInfo>§line_height: f32

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impl FontAtlas

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pub fn build(font_data: &[u8], size_px: f32) -> Option<FontAtlas>

Build a glyph atlas from raw TTF/OTF bytes at the given pixel size. Returns None if the fonts feature is not enabled or on parse error.

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pub fn measure_width(&self, text: &str) -> f32

Measure the width of a text string in pixels.

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