Crate ailloli_ui_text

Text measurement, layout, wrapping, and editing for Ailloli UI.

Decoupled from the GPU backend: this crate produces PreparedTextLayout and GlyphInstance data; ailloli_ui_render_wgpu rasterizes glyphs into an atlas.

Main types

Type	Role
TextSystem	Per-window Parley engine + LRU layout cache + font blobs
TextBuffer	Rope-backed document with per-paragraph revisions
PreparedTextLayout	Cached layout + glyphs for DrawCmd::Text
TextEditState	Caret, selection, IME, undo/redo for text widgets

Re-exports

pub use buffer::ParagraphMeta;

pub use buffer::TextBuffer;

pub use edit::PlatformKeymap;

pub use edit::TextEditAction;

pub use edit::TextEditOutcome;

pub use edit::TextEditState;

pub use edit::TextInputMode;

pub use edit::TextKeymap;

pub use edit::TextMovement;

pub use edit::TextSelection;

pub use engine_parley::ParleyEngine;

pub use font_db::FontDb;

pub use glyph::GlyphInstance;

pub use layout::caret_index_at_point;

pub use layout::caret_rect_at;

pub use layout::caret_x_at;

pub use layout::layout_text;

pub use layout::LaidOutLine;

pub use layout::LaidOutText;

pub use layout::TextLayoutParams;

pub use layout::TextMetrics;

pub use layout::WrapMode;

pub use params::StyledTextLayoutParams;

pub use params::StyledTextSpan;

pub use prepared::prepare_layout;

pub use prepared::PreparedTextLayout;

pub use system::ParagraphStore;

pub use system::TextLayoutHandle;

pub use system::TextLayoutKey;

pub use system::TextSystem;

pub use text_layout::caret_index_at_x;

pub use text_layout::line_layout;

pub use text_layout::LineLayout;

pub use text_measure::ApproxTextMeasure;

pub use text_measure::FontMetrics;

pub use text_measure::TextMeasure;

pub use wrap::wrap_lines;

Modules

buffer

Rope buffer with paragraph indexing and targeted invalidation. Rope-backed text buffer with per-paragraph revision tracking.

edit

Keyboard/IME editing engine shared by TextInput and Editor. Text editing engine: caret, selection, IME, undo/redo, clipboard.

engine_parley

Low-level Parley layout engine wrapper. Stateful Parley adapter used by higher-level text systems.

font_db

Font discovery via fontique (system + bundled assets). Fontique-backed discovery for bundled and operating-system fonts.

glyph

Glyph positions for GPU atlas lookup. Backend-neutral glyph placement produced by the text layout pipeline.

layout

Parley-based layout helpers and caret mapping. Cluster-aware shaping, line metrics, glyph extraction, and caret mapping.

params

Layout request parameters and line metrics. Value types that describe layout requests and results.

prepared

Prepared layouts ready for paint. One-shot prepared text layout: glyphs without per-instance font byte copies.

system

Central text subsystem (cache + fonts). Central text subsystem: shared Parley engine, layout LRU cache, font blobs per face.

text_layout

Simple per-line metrics (fontdue-backed). Simple per-character layout helpers independent of Parley shaping.

text_measure

Width measurement trait and implementations. Width measurement abstractions for lightweight text helpers.

wrap

Word-wrap without hyphenation. Lightweight whitespace-normalizing word wrapping.