@univerjs/engine-render v0.1.17 • Docs

Class: FontCache

Constructors

new FontCache()

new FontCache(): FontCache

Returns

FontCache

Accessors

globalFontMeasureCache

get static globalFontMeasureCache(): Map<string, Map<string, IMeasureTextCache>>

Returns

Map<string, Map<string, IMeasureTextCache>>

Defined in

submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:69 (opens in a new tab)

Methods

autoCleanFontMeasureCache()

static autoCleanFontMeasureCache(cacheLimit): boolean

Parameters

Parameter	Type	Default value
`cacheLimit`	`number`	`1000000`

Returns

boolean

Defined in

submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:104 (opens in a new tab)

clearFontMeasureCache()

static clearFontMeasureCache(path): boolean

Parameters

Parameter	Type
`path`	`string`

Returns

boolean

Defined in

submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:84 (opens in a new tab)

getBBoxFromGlyphInfo()

static getBBoxFromGlyphInfo(glyphInfo, fontStyle): {
  aba: number;
  abd: number;
  ba: number;
  bd: number;
  sbo: number;
  sbr: 0.6;
  sp: number;
  spo: number;
  spr: 0.6;
  width: number;
}

Parameters

Parameter	Type
`glyphInfo`	`IOpenTypeGlyphInfo`
`fontStyle`	`IDocumentSkeletonFontStyle`

Returns

{
  aba: number;
  abd: number;
  ba: number;
  bd: number;
  sbo: number;
  sbr: 0.6;
  sp: number;
  spo: number;
  spr: 0.6;
  width: number;
}

Name	Type	Default value	Defined in
`aba`	`number`	-	submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:370 (opens in a new tab)
`abd`	`number`	-	submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:371 (opens in a new tab)
`ba`	`number`	-	submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:368 (opens in a new tab)
`bd`	`number`	-	submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:369 (opens in a new tab)
`sbo`	`number`	-	submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:376 (opens in a new tab)
`sbr`	`number`	0.6	submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:373 (opens in a new tab)
`sp`	`number`	-	submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:372 (opens in a new tab)
`spo`	`number`	-	submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:377 (opens in a new tab)
`spr`	`number`	0.6	submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:374 (opens in a new tab)
`width`	`number`	-	submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:367 (opens in a new tab)

Defined in

submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:204 (opens in a new tab)

getBaselineOffsetInfo()

static getBaselineOffsetInfo(fontFamily, fontSize): {
  sbo: fontSize;
  sbr: 0.6;
  spo: fontSize;
  spr: 0.6;
}

Parameters

Parameter	Type
`fontFamily`	`string`
`fontSize`	`number`

Returns

{
  sbo: fontSize;
  sbr: 0.6;
  spo: fontSize;
  spr: 0.6;
}

Name	Type	Default value	Defined in
`sbo`	`number`	fontSize	submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:34 (opens in a new tab)
`sbr`	`number`	0.6	submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:33 (opens in a new tab)
`spo`	`number`	fontSize	submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:36 (opens in a new tab)
`spr`	`number`	0.6	submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:35 (opens in a new tab)

Defined in

submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:140 (opens in a new tab)

getFontMeasureCache()

static getFontMeasureCache(fontStyle, content): Nullable<IMeasureTextCache>

Parameters

Parameter	Type
`fontStyle`	`string`
`content`	`string`

Returns

Nullable<IMeasureTextCache>

Defined in

submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:99 (opens in a new tab)

getMeasureText()

static getMeasureText(content, fontString): IMeasureTextCache

Parameters

Parameter	Type
`content`	`string`
`fontString`	`string`

Returns

IMeasureTextCache

Defined in

submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:223 (opens in a new tab)

getTextSize()

static getTextSize(content, fontStyle): IDocumentSkeletonBoundingBox

Parameters

Parameter	Type
`content`	`string`
`fontStyle`	`IDocumentSkeletonFontStyle`

Returns

IDocumentSkeletonBoundingBox

Defined in

submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:188 (opens in a new tab)

getTextSizeByDom()

static getTextSizeByDom(text, fontStyle): {
  height: number;
  width: number;
}

Parameters

Parameter	Type
`text`	`string`
`fontStyle`	`string`

Returns

{
  height: number;
  width: number;
}

Name	Type	Defined in
`height`	`number`	submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:61 (opens in a new tab)
`width`	`number`	submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:61 (opens in a new tab)

Defined in

submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:166 (opens in a new tab)

setFontMeasureCache()

static setFontMeasureCache(
   fontStyle, 
   content, 
   tm): void

Parameters

Parameter	Type
`fontStyle`	`string`
`content`	`string`
`tm`	`IMeasureTextCache`

Returns

void

Defined in

submodules/univer/packages/engine-render/src/components/docs/layout/shaping-engine/font-cache.ts:73 (opens in a new tab)

Font Group