Class ScalerContext

constructor

• new ScalerContext(fontName, fontStyle, size): ScalerContext

• Parameters

  • fontName: string

  • fontStyle: string

  • size: number

  Returns ScalerContext

Static canvas

Static context

Static getLineCap

• getLineCap(cap): CanvasLineCap

• Parameters

  • cap: ctor

  Returns CanvasLineCap

Static getLineJoin

• getLineJoin(join): CanvasLineJoin

• Parameters

  • join: ctor

  Returns CanvasLineJoin

Static setCanvas

• setCanvas(canvas): void

• Parameters

  • canvas: HTMLCanvasElement | OffscreenCanvas

  Returns void

Static setContext

• setContext(context): void

• Parameters

  • context: OffscreenCanvasRenderingContext2D | CanvasRenderingContext2D

  Returns void

Static isUnicodePropertyEscapeSupported

• isUnicodePropertyEscapeSupported(): boolean

• Returns boolean

Static isEmoji

• isEmoji(text): boolean

• Parameters

  • text: string

  Returns boolean

fontString

• fontString(fauxBold, fauxItalic): string

• Parameters

  • fauxBold: boolean

  • fauxItalic: boolean

  Returns string

getFontMetrics

• getFontMetrics(): {
      ascent: number;
      descent: number;
      xHeight: number;
      capHeight: number;
  }

• Returns {
      ascent: number;
      descent: number;
      xHeight: number;
      capHeight: number;
  }

  • ascent: number

  • descent: number

  • xHeight: number

  • capHeight: number

getBounds

• getBounds(text, fauxBold, fauxItalic): Rect

• Parameters

  • text: string

  • fauxBold: boolean

  • fauxItalic: boolean

  Returns Rect

getAdvance

• getAdvance(text): number

• Parameters

  • text: string

  Returns number

readPixels

• readPixels(text, bounds, fauxBold, stroke?): null | Uint8Array

• Parameters

  • text: string

  • bounds: Rect

  • fauxBold: boolean

  • Optional stroke: {
        width: number;
        cap: ctor;
        join: ctor;
        miterLimit: number;
    }

    • width: number

    • cap: ctor

    • join: ctor

    • miterLimit: number

  Returns null | Uint8Array