fabric/dist/src/util/misc/objectTransforms.mjs.map

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

{"version":3,"file":"objectTransforms.mjs","names":[],"sources":["../../../../src/util/misc/objectTransforms.ts"],"sourcesContent":["import { Point } from '../../Point';\nimport { CENTER } from '../../constants';\nimport type { FabricObject } from '../../shapes/Object/Object';\nimport type { TMat2D } from '../../typedefs';\nimport { makeBoundingBoxFromPoints } from './boundingBoxFromPoints';\nimport {\n  invertTransform,\n  multiplyTransformMatrices,\n  qrDecompose,\n} from './matrix';\n\n/**\n * given an object and a transform, apply the inverse transform to the object,\n * this is equivalent to remove from that object that transformation, so that\n * added in a space with the removed transform, the object will be the same as before.\n * Removing from an object a transform that scale by 2 is like scaling it by 1/2.\n * Removing from an object a transform that rotate by 30deg is like rotating by 30deg\n * in the opposite direction.\n * This util is used to add objects inside transformed groups or nested groups.\n * @param {FabricObject} object the object you want to transform\n * @param {TMat2D} transform the destination transform\n */\nexport const removeTransformFromObject = (\n  object: FabricObject,\n  transform: TMat2D,\n) => {\n  const inverted = invertTransform(transform),\n    finalTransform = multiplyTransformMatrices(\n      inverted,\n      object.calcOwnMatrix(),\n    );\n  applyTransformToObject(object, finalTransform);\n};\n\n/**\n * given an object and a transform, apply the transform to the object.\n * this is equivalent to change the space where the object is drawn.\n * Adding to an object a transform that scale by 2 is like scaling it by 2.\n * This is used when removing an object from an active selection for example.\n * @param {FabricObject} object the object you want to transform\n * @param {Array} transform the destination transform\n */\nexport const addTransformToObject = (object: FabricObject, transform: TMat2D) =>\n  applyTransformToObject(\n    object,\n    multiplyTransformMatrices(transform, object.calcOwnMatrix()),\n  );\n\n/**\n * discard an object transform state and apply the one from the matrix.\n * @param {FabricObject} object the object you want to transform\n * @param {Array} transform the destination transform\n */\nexport const applyTransformToObject = (\n  object: FabricObject,\n  transform: TMat2D,\n) => {\n  const { translateX, translateY, scaleX, scaleY, ...otherOptions } =\n      qrDecompose(transform),\n    center = new Point(translateX, translateY);\n  object.flipX = false;\n  object.flipY = false;\n  Object.assign(object, otherOptions);\n  object.set({ scaleX, scaleY });\n  object.setPositionByOrigin(center, CENTER, CENTER);\n};\n/**\n * reset an object transform state to neutral. Top and left are not accounted for\n * @param  {FabricObject} target object to transform\n */\nexport const resetObjectTransform = (target: FabricObject) => {\n  target.scaleX = 1;\n  target.scaleY = 1;\n  target.skewX = 0;\n  target.skewY = 0;\n  target.flipX = false;\n  target.flipY = false;\n  target.rotate(0);\n};\n\n/**\n * Extract Object transform values\n * @param  {FabricObject} target object to read from\n * @return {Object} Components of transform\n */\nexport const saveObjectTransform = (target: FabricObject) => ({\n  scaleX: target.scaleX,\n  scaleY: target.scaleY,\n  skewX: target.skewX,\n  skewY: target.skewY,\n  angle: target.angle,\n  left: target.left,\n  flipX: target.flipX,\n  flipY: target.flipY,\n  top: target.top,\n});\n\n/**\n * given a width and height, return the size of the bounding box\n * that can contains the box with width/height with applied transform.\n * Use to calculate the boxes around objects for controls.\n * @param {Number} width\n * @param {Number} height\n * @param {TMat2D} t\n * @returns {Point} size\n */\nexport const sizeAfterTransform = (\n  width: number,\n  height: number,\n  t: TMat2D,\n) => {\n  const dimX = width / 2,\n    dimY = height / 2,\n    points = [\n      new Point(-dimX, -dimY),\n      new Point(dimX, -dimY),\n      new Point(-dimX, dimY),\n      new Point(dimX, dimY),\n    ].map((p) => p.transform(t)),\n    bbox = makeBoundingBoxFromPoints(points);\n  return new Point(bbox.width, bbox.height);\n};\n"],"mappings":";;;;;;;;;;;;;;;;AAsBA,MAAa,6BACX,QACA,cACG;AAMH,wBAAuB,QAJJ,0BADF,gBAAgB,UAAU,EAGvC,OAAO,eAAe,CACvB,CAC2C;;;;;;;;;;AAWhD,MAAa,wBAAwB,QAAsB,cACzD,uBACE,QACA,0BAA0B,WAAW,OAAO,eAAe,CAAC,CAC7D;;;;;;AAOH,MAAa,0BACX,QACA,cACG;CACH,MAAM,EAAE,YAAY,YAAY,QAAQ,QAAQ,GAAG,iBAC/C,YAAY,UAAU,EACxB,SAAS,IAAI,MAAM,YAAY,WAAW;AAC5C,QAAO,QAAQ;AACf,QAAO,QAAQ;AACf,QAAO,OAAO,QAAQ,aAAa;AACnC,QAAO,IAAI;EAAE;EAAQ;EAAQ,CAAC;AAC9B,QAAO,oBAAoB,QAAQ,QAAQ,OAAO;;;;;;AAMpD,MAAa,wBAAwB,WAAyB;AAC5D,QAAO,SAAS;AAChB,QAAO,SAAS;AAChB,QAAO,QAAQ;AACf,QAAO,QAAQ;AACf,QAAO,QAAQ;AACf,QAAO,QAAQ;AACf,QAAO,OAAO,EAAE;;;;;;;AAQlB,MAAa,uBAAuB,YAA0B;CAC5D,QAAQ,OAAO;CACf,QAAQ,OAAO;CACf,OAAO,OAAO;CACd,OAAO,OAAO;CACd,OAAO,OAAO;CACd,MAAM,OAAO;CACb,OAAO,OAAO;CACd,OAAO,OAAO;CACd,KAAK,OAAO;CACb;;;;;;;;;;AAWD,MAAa,sBACX,OACA,QACA,MACG;CACH,MAAM,OAAO,QAAQ,GACnB,OAAO,SAAS,GAOhB,OAAO,0BANE;EACP,IAAI,MAAM,CAAC,MAAM,CAAC,KAAK;EACvB,IAAI,MAAM,MAAM,CAAC,KAAK;EACtB,IAAI,MAAM,CAAC,MAAM,KAAK;EACtB,IAAI,MAAM,MAAM,KAAK;EACtB,CAAC,KAAK,MAAM,EAAE,UAAU,EAAE,CAAC,CACY;AAC1C,QAAO,IAAI,MAAM,KAAK,OAAO,KAAK,OAAO"}