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@shadow-garden/bapbong-measuring

v0.1.2

Published

bapbong — text measurement (canvas) + font helpers

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Links

Git

Maintainers

minhlpminhlp

Keywords

Readme

@shadow-garden/bapbong-measuring

Text measurement + font-metrics, behind a small injectable interface. The layout engine and selection math never touch the canvas directly — they call a MeasureText / MeasureMetrics provided by this package, so they stay testable in a headless (no-DOM) environment.

  • Scope: scope:measuring
  • Depends on: @shadow-garden/bapbong-contracts

What it provides

  • createCanvasMeasurer() / createCanvasMetrics() — real measurement via a shared offscreen CanvasRenderingContext2D (ctx.measureText, ascent/descent), with a per-font cache.
  • createApproxMeasurer() / createApproxMetrics() — DOM-free approximations (average advance widths) for unit tests and SSR.
  • fontToCss(spec) — FontSpec → CSS font shorthand.

Build / test

pnpm nx build @shadow-garden/bapbong-measuring
pnpm nx test  @shadow-garden/bapbong-measuring