@shadow-garden/bapbong-layout-engine

@shadow-garden/bapbong-layout-engine

The heart of the renderer: turns a ProseMirror document into a paint-ready ResolvedLayout — every glyph run, line, table cell, float and footnote with absolute page coordinates. The painter then just draws; it never measures.

• Scope: scope:engine
• Depends on: @shadow-garden/bapbong-contracts, @shadow-garden/bapbong-model (measurement is injected via MeasureText)

What it does

• toFlowBlocks(doc) — schema document → flow model (FlowParagraph / FlowTable / …).
• Line breaking, pagination, paragraph spacing/indent, tabs, hanging indents.
• Multi-column sections (with column-height balancing), floats (text wrap), page headers/footers (first/even variants), and footnotes reserved at the page bottom (including refs inside table cells).
• Threads commentIds / footnoteRef onto segments for the painter.

Public API

import { layout, createLayoutCache } from '@shadow-garden/bapbong-layout-engine';

const cache = createLayoutCache();            // incremental table re-layout
const resolved = layout(doc, config, measureText, { cache });

Also: layoutBlocks, LayoutCache, PageChrome.

Build / test

pnpm nx build @shadow-garden/bapbong-layout-engine
pnpm nx test  @shadow-garden/bapbong-layout-engine