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

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

{"version":3,"file":"objectTransforms.min.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":"4QAsBA,MAAa,GACX,EACA,IAAA,CAOA,EAAuB,EAJJ,EADF,EAAgB,EAAA,CAG7B,EAAO,eAAA,CAAA,CAAA,EAaA,GAAwB,EAAsB,IACzD,EACE,EACA,EAA0B,EAAW,EAAO,eAAA,CAAA,CAAA,CAQnC,GACX,EACA,IAAA,CAEA,GAAA,CAAM,WAAE,EAAA,WAAY,EAAA,OAAY,EAAA,OAAQ,EAAA,GAAW,GAC/C,EAAY,EAAA,CACd,EAAS,IAAI,EAAM,EAAY,EAAA,CACjC,EAAO,MAAA,CAAQ,EACf,EAAO,MAAA,CAAQ,EACf,OAAO,OAAO,EAAQ,EAAA,CACtB,EAAO,IAAI,CAAE,OAAA,EAAQ,OAAA,EAAA,CAAA,CACrB,EAAO,oBAAoB,EAAQ,EAAQ,EAAA,EAMhC,EAAwB,GAAA,CACnC,EAAO,OAAS,EAChB,EAAO,OAAS,EAChB,EAAO,MAAQ,EACf,EAAO,MAAQ,EACf,EAAO,MAAA,CAAQ,EACf,EAAO,MAAA,CAAQ,EACf,EAAO,OAAO,EAAA,EAQH,EAAuB,IAAA,CAClC,OAAQ,EAAO,OACf,OAAQ,EAAO,OACf,MAAO,EAAO,MACd,MAAO,EAAO,MACd,MAAO,EAAO,MACd,KAAM,EAAO,KACb,MAAO,EAAO,MACd,MAAO,EAAO,MACd,IAAK,EAAO,IAAA,EAYD,GACX,EACA,EACA,IAAA,CAEA,IAAM,EAAO,EAAQ,EACnB,EAAO,EAAS,EAOhB,EAAO,EANE,CACP,IAAI,EAAA,CAAO,EAAA,CAAO,EAAA,CAClB,IAAI,EAAM,EAAA,CAAO,EAAA,CACjB,IAAI,EAAA,CAAO,EAAM,EAAA,CACjB,IAAI,EAAM,EAAM,EAAA,CAAA,CAChB,IAAK,GAAM,EAAE,UAAU,EAAA,CAAA,CAAA,CAE3B,OAAO,IAAI,EAAM,EAAK,MAAO,EAAK,OAAA,EAAA,OAAA,KAAA,qBAAA,KAAA,uBAAA,KAAA,0BAAA,KAAA,qBAAA,KAAA,oBAAA,KAAA"}