Crate martensite_text 

Typography and text layout for Martensite.

This crate provides:

• font: font system abstraction, system font discovery via fontdb, and custom font asset loading.
• shaping: complex text shaping with BiDi, line breaking, and font fallback via cosmic-text.
• cache: two-tier text measurement and glyph shaping cache (Tier 1 inline in ColdNode, Tier 2 global LRU with 16 MB budget).
• ime: velocity-damped kinetic IME candidate positioning that tracks the caret during active scrolling.

IME candidate projection

The compute_ime_bounds function computes IME candidate window bounds from the cursor position and line height. For scrolling containers, prefer the ime module’s ImePositioner, which applies velocity-damped projection and viewport clamping.

Re-exports

pub use cache::CachedShape;

pub use cache::FontSizeBits;

pub use cache::LineHeightBits;

pub use cache::MaxWidthBits;

pub use cache::ShapeCacheKey;

pub use cache::TextHash;

pub use cache::TextShapeCache;

pub use cache::DEFAULT_MEMORY_BUDGET;

pub use font::FontFaceInfo;

pub use font::FontId;

pub use font::FontManager;

pub use font::FontSource;

pub use font::FontStyle;

pub use ime::ImePositioner;

pub use ime::ScrollKinematics;

pub use ime::Viewport;

pub use shaping::measure_text;

pub use shaping::measure_text_with_attrs;

pub use shaping::shape_text;

pub use shaping::ShapedGlyph;

pub use shaping::ShapedLine;

pub use shaping::Shaper;

pub use shaping::TextMetrics;

Modules

cache

Two-tier text cache: TextShapeCache, ShapeCacheKey. Two-tier text measurement and glyph shaping cache.

font

Font system abstraction: FontManager, FontId, FontSource. Font system abstraction: system font discovery via fontdb, custom font asset loading, and font identity types.

ime

Velocity-damped kinetic IME candidate positioning. Velocity-damped kinetic IME candidate positioning.

shaping

Complex text shaping: Shaper, TextMetrics, ShapedLine. Complex text shaping: BiDi, line breaking, font fallback chaining, and text measurement via cosmic-text.

Structs

Attrs

Text attributes

Buffer

A buffer of text that is shaped and laid out

FontSystem

Access to the system fonts.

Metrics

Metrics of text

Enums

Family

A font family.

Shaping

The shaping strategy of some text.