fabric/dist/src/filters/HueRotation.min.mjs.map

Object model for HTML5 canvas, and SVG-to-canvas parser. Backed by jsdom and node-canvas.

{"version":3,"file":"HueRotation.min.mjs","names":[],"sources":["../../../src/filters/HueRotation.ts"],"sourcesContent":["import { cos } from '../util/misc/cos';\nimport { sin } from '../util/misc/sin';\nimport {\n  ColorMatrix,\n  type ColorMatrixOwnProps,\n  colorMatrixDefaultValues,\n} from './ColorMatrix';\nimport type { TWebGLPipelineState, T2DPipelineState } from './typedefs';\nimport { classRegistry } from '../ClassRegistry';\n\nexport type HueRotationOwnProps = ColorMatrixOwnProps & {\n  rotation: number;\n};\n\nexport type HueRotationSerializedProps = {\n  rotation: number;\n};\n\nexport const hueRotationDefaultValues: HueRotationOwnProps = {\n  ...colorMatrixDefaultValues,\n  rotation: 0,\n};\n\n/**\n * HueRotation filter class\n * @example\n * const filter = new HueRotation({\n *   rotation: -0.5\n * });\n * object.filters.push(filter);\n * object.applyFilters();\n */\nexport class HueRotation extends ColorMatrix<\n  'HueRotation',\n  HueRotationOwnProps,\n  HueRotationSerializedProps\n> {\n  /**\n   * HueRotation value, from -1 to 1.\n   */\n  declare rotation: HueRotationOwnProps['rotation'];\n\n  static type = 'HueRotation';\n\n  static defaults = hueRotationDefaultValues;\n\n  calculateMatrix() {\n    const rad = this.rotation * Math.PI,\n      cosine = cos(rad),\n      sine = sin(rad),\n      aThird = 1 / 3,\n      aThirdSqtSin = Math.sqrt(aThird) * sine,\n      OneMinusCos = 1 - cosine;\n    this.matrix = [\n      cosine + OneMinusCos / 3,\n      aThird * OneMinusCos - aThirdSqtSin,\n      aThird * OneMinusCos + aThirdSqtSin,\n      0,\n      0,\n      aThird * OneMinusCos + aThirdSqtSin,\n      cosine + aThird * OneMinusCos,\n      aThird * OneMinusCos - aThirdSqtSin,\n      0,\n      0,\n      aThird * OneMinusCos - aThirdSqtSin,\n      aThird * OneMinusCos + aThirdSqtSin,\n      cosine + aThird * OneMinusCos,\n      0,\n      0,\n      0,\n      0,\n      0,\n      1,\n      0,\n    ];\n  }\n\n  isNeutralState() {\n    return this.rotation === 0;\n  }\n\n  applyTo(options: TWebGLPipelineState | T2DPipelineState) {\n    this.calculateMatrix();\n    super.applyTo(options);\n  }\n\n  toObject() {\n    return {\n      type: this.type,\n      rotation: this.rotation,\n    };\n  }\n}\n\nclassRegistry.setClass(HueRotation);\n"],"mappings":"uVAkBA,MAAa,EAAgD,CAAA,GACxD,EACH,SAAU,EAAA,CAYZ,IAAa,EAAb,cAAiC,CAAA,CAc/B,iBAAA,CACE,IAAM,EAAM,KAAK,SAAW,KAAK,GAC/B,EAAS,EAAI,EAAA,CACb,EAAO,EAAI,EAAA,CACX,EAAS,EAAI,EACb,EAAe,KAAK,KAAK,EAAA,CAAU,EACnC,EAAc,EAAI,EACpB,KAAK,OAAS,CACZ,EAAS,EAAc,EACvB,EAAS,EAAc,EACvB,EAAS,EAAc,EACvB,EACA,EACA,EAAS,EAAc,EACvB,EAAS,EAAS,EAClB,EAAS,EAAc,EACvB,EACA,EACA,EAAS,EAAc,EACvB,EAAS,EAAc,EACvB,EAAS,EAAS,EAClB,EACA,EACA,EACA,EACA,EACA,EACA,EAAA,CAIJ,gBAAA,CACE,OAAO,KAAK,WAAa,EAG3B,QAAQ,EAAA,CACN,KAAK,iBAAA,CACL,MAAM,QAAQ,EAAA,CAGhB,UAAA,CACE,MAAO,CACL,KAAM,KAAK,KACX,SAAU,KAAK,SAAA,GAAA,EAAA,EA/CZ,OAAO,cAAA,CAAA,EAAA,EAEP,WAAW,EAAA,CAkDpB,EAAc,SAAS,EAAA,CAAA,OAAA,KAAA"}