@pdfa-lab/fontkit / COLRGlyph

Class: COLRGlyph

Defined in: src/glyph/colr-glyph.ts:24

Represents a color (e.g. emoji) glyph in Microsoft's COLR format. Each glyph in this format contain a list of colored layers, each of which is another vector glyph.

Extends

• Glyph

Constructors

Constructor

new COLRGlyph(id, codePoints, font): COLRGlyph

Defined in: src/glyph/glyph.ts:132

An array of unicode code points that are represented by this glyph. There can be multiple code points in the case of ligatures and other glyphs that represent multiple visual characters.

Parameters

Parameter	Type	Description
id	number	the glyph id in the font.
codePoints	readonly number[]	the array of Unicode code points.
font	TrueTypeSubsetFont | OpenTypeFont	the font containing the glyph

Returns

COLRGlyph

Inherited from

Glyph.constructor

Properties

Property	Modifier	Type	Inherited from	Defined in
_metrics?	protected	GlyphLayoutMetrics	Glyph._metrics	src/glyph/glyph.ts:116
codePoints	readonly	readonly number[]	WOFF2Glyph.codePoints	src/glyph/glyph.ts:111
font	readonly	TrueTypeSubsetFont | OpenTypeFont	Glyph.font	src/glyph/glyph.ts:112
id	readonly	number	Glyph.id	src/glyph/glyph.ts:110
isLigature	readonly	boolean	Glyph.isLigature	src/glyph/glyph.ts:114
isMark	readonly	boolean	Glyph.isMark	src/glyph/glyph.ts:113

Accessors

advanceHeight

Get Signature

get advanceHeight(): number

Defined in: src/glyph/glyph.ts:301

The glyph's advance height.

Returns

number

Inherited from

Glyph.advanceHeight

---

advanceWidth

Get Signature

get advanceWidth(): number

Defined in: src/glyph/glyph.ts:290

The glyph's advance width.

Returns

number

Inherited from

WOFF2Glyph.advanceWidth

---

bbox

Get Signature

get bbox(): Readonly<BoundingBox>

Defined in: src/glyph/glyph.ts:257

The glyph’s bounding box, i.e. the rectangle that encloses the glyph outline as tightly as possible.

Returns

Readonly<BoundingBox>

Inherited from

Glyph.bbox

---

cbox

Get Signature

get cbox(): Readonly<BoundingBox>

Defined in: src/glyph/glyph.ts:245

The glyph’s control box. This is often the same as the bounding box, but is faster to compute. Because of the way bezier curves are defined, some of the control points can be outside of the bounding box. Where bbox takes this into account, cbox does not. Thus, cbox is less accurate, but faster to compute. See here for a more detailed description.

Returns

Readonly<BoundingBox>

Inherited from

Glyph.cbox

---

name

Get Signature

get name(): string | null

Defined in: src/glyph/glyph.ts:359

The glyph's name.

Returns

string | null

Inherited from

WOFF2Glyph.name

---

path

Get Signature

get path(): Readonly<Path>

Defined in: src/glyph/glyph.ts:269

A vector Path object representing the glyph outline.

Returns

Readonly<Path>

Inherited from

Glyph.path

Methods

getBBox()

protected getBBox(): BoundingBox

Defined in: src/glyph/colr-glyph.ts:25

Returns

BoundingBox

Overrides

Glyph.getBBox

---

getCBox()

protected getCBox(_?): Readonly<BoundingBox>

Defined in: src/glyph/glyph.ts:153

Parameters

Parameter	Type
_?	boolean

Returns

Readonly<BoundingBox>

Inherited from

Glyph.getCBox

---

getName()

protected getName(): string | null

Defined in: src/glyph/glyph.ts:309

Returns

string | null

Inherited from

Glyph.getName

---

getScaledPath()

getScaledPath(size): Path

Defined in: src/glyph/glyph.ts:282

Returns a path scaled to the given font size.

Parameters

Parameter	Type
size	number

Returns

Path

Inherited from

Glyph.getScaledPath

---

render()

render(ctx, size): void

Defined in: src/glyph/colr-glyph.ts:108

Renders the glyph to the given graphics context, at the specified font size.

The rendering context ctx should actually be an instance of pdfkit. However, for regular glyphs, you can also pass an HTML5 CanvasRenderingContext2D or one of the implementations for Node.js, like canvas, although you have to cast this, when using TypeScript.

Unfortunately, this will crash, for colour glyphs, see https://github.com/gflohr/pdfa-lab/issues/105.

Parameters

Parameter	Type	Description
ctx	FontkitCanvas	the FontkitCanvas
size	number	the font size in points

Returns

void

Overrides

Glyph.render