Struct GlyphInstance

pub struct GlyphInstance {
    pub face_id: u64,
    pub font_index: u32,
    pub glyph_id: u32,
    pub px_size: u16,
    pub x: f32,
    pub y: f32,
    pub color: Option<Color>,
}

One positioned glyph in logical layout space.

The matching font bytes remain owned by crate::TextSystem. Coordinates are logical pixels relative to the layout origin; they are not rounded to device pixels. color is absent for layouts that use one caller-supplied paint color and present for styled runs that carry their own color.

Examples

use ailloli_ui_text::GlyphInstance;

let glyph = GlyphInstance {
    face_id: 7,
    font_index: 0,
    glyph_id: 42,
    px_size: 16,
    x: 12.5,
    y: 20.0,
    color: None,
};
assert_eq!(glyph.glyph_id, 42);
assert_eq!(glyph.color, None);

Fields

face_id: u64

Stable identifier of the selected font face within the Parley database.

font_index: u32

Face index inside a font collection; zero for ordinary single-face fonts.

glyph_id: u32

Font-specific glyph identifier used for rasterization.

px_size: u16

Requested font size in logical pixels, rounded and clamped to at least one.

x: f32

Horizontal glyph origin in logical pixels.

y: f32

Vertical glyph origin in logical pixels.

color: Option<Color>

Per-run linear-RGBA color, or None when paint supplies a uniform color.

Trait Implementations

impl Clone for GlyphInstance

fn clone(&self) -> GlyphInstance

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for GlyphInstance

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

Formats the value using the given formatter.

impl PartialEq for GlyphInstance

fn eq(&self, other: &GlyphInstance) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for GlyphInstance

impl StructuralPartialEq for GlyphInstance