1 line
26 KiB
JSON
1 line
26 KiB
JSON
{"ast":null,"code":"import * as matrix from './matrix.js';\nimport * as vector from './vector.js';\nvar mIdentity = matrix.identity;\nvar EPSILON = 5e-5;\n\nfunction isNotAroundZero(val) {\n return val > EPSILON || val < -EPSILON;\n}\n\nvar scaleTmp = [];\nvar tmpTransform = [];\nvar originTransform = matrix.create();\nvar abs = Math.abs;\n\nvar Transformable = function () {\n function Transformable() {}\n\n Transformable.prototype.getLocalTransform = function (m) {\n return Transformable.getLocalTransform(this, m);\n };\n\n Transformable.prototype.setPosition = function (arr) {\n this.x = arr[0];\n this.y = arr[1];\n };\n\n Transformable.prototype.setScale = function (arr) {\n this.scaleX = arr[0];\n this.scaleY = arr[1];\n };\n\n Transformable.prototype.setSkew = function (arr) {\n this.skewX = arr[0];\n this.skewY = arr[1];\n };\n\n Transformable.prototype.setOrigin = function (arr) {\n this.originX = arr[0];\n this.originY = arr[1];\n };\n\n Transformable.prototype.needLocalTransform = function () {\n return isNotAroundZero(this.rotation) || isNotAroundZero(this.x) || isNotAroundZero(this.y) || isNotAroundZero(this.scaleX - 1) || isNotAroundZero(this.scaleY - 1) || isNotAroundZero(this.skewX) || isNotAroundZero(this.skewY);\n };\n\n Transformable.prototype.updateTransform = function () {\n var parentTransform = this.parent && this.parent.transform;\n var needLocalTransform = this.needLocalTransform();\n var m = this.transform;\n\n if (!(needLocalTransform || parentTransform)) {\n m && mIdentity(m);\n return;\n }\n\n m = m || matrix.create();\n\n if (needLocalTransform) {\n this.getLocalTransform(m);\n } else {\n mIdentity(m);\n }\n\n if (parentTransform) {\n if (needLocalTransform) {\n matrix.mul(m, parentTransform, m);\n } else {\n matrix.copy(m, parentTransform);\n }\n }\n\n this.transform = m;\n\n this._resolveGlobalScaleRatio(m);\n };\n\n Transformable.prototype._resolveGlobalScaleRatio = function (m) {\n var globalScaleRatio = this.globalScaleRatio;\n\n if (globalScaleRatio != null && globalScaleRatio !== 1) {\n this.getGlobalScale(scaleTmp);\n var relX = scaleTmp[0] < 0 ? -1 : 1;\n var relY = scaleTmp[1] < 0 ? -1 : 1;\n var sx = ((scaleTmp[0] - relX) * globalScaleRatio + relX) / scaleTmp[0] || 0;\n var sy = ((scaleTmp[1] - relY) * globalScaleRatio + relY) / scaleTmp[1] || 0;\n m[0] *= sx;\n m[1] *= sx;\n m[2] *= sy;\n m[3] *= sy;\n }\n\n this.invTransform = this.invTransform || matrix.create();\n matrix.invert(this.invTransform, m);\n };\n\n Transformable.prototype.getComputedTransform = function () {\n var transformNode = this;\n var ancestors = [];\n\n while (transformNode) {\n ancestors.push(transformNode);\n transformNode = transformNode.parent;\n }\n\n while (transformNode = ancestors.pop()) {\n transformNode.updateTransform();\n }\n\n return this.transform;\n };\n\n Transformable.prototype.setLocalTransform = function (m) {\n if (!m) {\n return;\n }\n\n var sx = m[0] * m[0] + m[1] * m[1];\n var sy = m[2] * m[2] + m[3] * m[3];\n var rotation = Math.atan2(m[1], m[0]);\n var shearX = Math.PI / 2 + rotation - Math.atan2(m[3], m[2]);\n sy = Math.sqrt(sy) * Math.cos(shearX);\n sx = Math.sqrt(sx);\n this.skewX = shearX;\n this.skewY = 0;\n this.rotation = -rotation;\n this.x = +m[4];\n this.y = +m[5];\n this.scaleX = sx;\n this.scaleY = sy;\n this.originX = 0;\n this.originY = 0;\n };\n\n Transformable.prototype.decomposeTransform = function () {\n if (!this.transform) {\n return;\n }\n\n var parent = this.parent;\n var m = this.transform;\n\n if (parent && parent.transform) {\n matrix.mul(tmpTransform, parent.invTransform, m);\n m = tmpTransform;\n }\n\n var ox = this.originX;\n var oy = this.originY;\n\n if (ox || oy) {\n originTransform[4] = ox;\n originTransform[5] = oy;\n matrix.mul(tmpTransform, m, originTransform);\n tmpTransform[4] -= ox;\n tmpTransform[5] -= oy;\n m = tmpTransform;\n }\n\n this.setLocalTransform(m);\n };\n\n Transformable.prototype.getGlobalScale = function (out) {\n var m = this.transform;\n out = out || [];\n\n if (!m) {\n out[0] = 1;\n out[1] = 1;\n return out;\n }\n\n out[0] = Math.sqrt(m[0] * m[0] + m[1] * m[1]);\n out[1] = Math.sqrt(m[2] * m[2] + m[3] * m[3]);\n\n if (m[0] < 0) {\n out[0] = -out[0];\n }\n\n if (m[3] < 0) {\n out[1] = -out[1];\n }\n\n return out;\n };\n\n Transformable.prototype.transformCoordToLocal = function (x, y) {\n var v2 = [x, y];\n var invTransform = this.invTransform;\n\n if (invTransform) {\n vector.applyTransform(v2, v2, invTransform);\n }\n\n return v2;\n };\n\n Transformable.prototype.transformCoordToGlobal = function (x, y) {\n var v2 = [x, y];\n var transform = this.transform;\n\n if (transform) {\n vector.applyTransform(v2, v2, transform);\n }\n\n return v2;\n };\n\n Transformable.prototype.getLineScale = function () {\n var m = this.transform;\n return m && abs(m[0] - 1) > 1e-10 && abs(m[3] - 1) > 1e-10 ? Math.sqrt(abs(m[0] * m[3] - m[2] * m[1])) : 1;\n };\n\n Transformable.prototype.copyTransform = function (source) {\n copyTransform(this, source);\n };\n\n Transformable.getLocalTransform = function (target, m) {\n m = m || [];\n var ox = target.originX || 0;\n var oy = target.originY || 0;\n var sx = target.scaleX;\n var sy = target.scaleY;\n var ax = target.anchorX;\n var ay = target.anchorY;\n var rotation = target.rotation || 0;\n var x = target.x;\n var y = target.y;\n var skewX = target.skewX ? Math.tan(target.skewX) : 0;\n var skewY = target.skewY ? Math.tan(-target.skewY) : 0;\n\n if (ox || oy || ax || ay) {\n var dx = ox + ax;\n var dy = oy + ay;\n m[4] = -dx * sx - skewX * dy * sy;\n m[5] = -dy * sy - skewY * dx * sx;\n } else {\n m[4] = m[5] = 0;\n }\n\n m[0] = sx;\n m[3] = sy;\n m[1] = skewY * sx;\n m[2] = skewX * sy;\n rotation && matrix.rotate(m, m, rotation);\n m[4] += ox + x;\n m[5] += oy + y;\n return m;\n };\n\n Transformable.initDefaultProps = function () {\n var proto = Transformable.prototype;\n proto.scaleX = proto.scaleY = proto.globalScaleRatio = 1;\n proto.x = proto.y = proto.originX = proto.originY = proto.skewX = proto.skewY = proto.rotation = proto.anchorX = proto.anchorY = 0;\n }();\n\n return Transformable;\n}();\n\n;\nexport var TRANSFORMABLE_PROPS = ['x', 'y', 'originX', 'originY', 'anchorX', 'anchorY', 'rotation', 'scaleX', 'scaleY', 'skewX', 'skewY'];\nexport function copyTransform(target, source) {\n for (var i = 0; i < TRANSFORMABLE_PROPS.length; i++) {\n var propName = TRANSFORMABLE_PROPS[i];\n 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isNotAroundZero(this.rotation)\n || isNotAroundZero(this.x)\n || isNotAroundZero(this.y)\n || isNotAroundZero(this.scaleX - 1)\n || isNotAroundZero(this.scaleY - 1)\n || isNotAroundZero(this.skewX)\n || isNotAroundZero(this.skewY);\n };\n Transformable.prototype.updateTransform = function () {\n var parentTransform = this.parent && this.parent.transform;\n var needLocalTransform = this.needLocalTransform();\n var m = this.transform;\n if (!(needLocalTransform || parentTransform)) {\n m && mIdentity(m);\n return;\n }\n m = m || matrix.create();\n if (needLocalTransform) {\n this.getLocalTransform(m);\n }\n else {\n mIdentity(m);\n }\n if (parentTransform) {\n if (needLocalTransform) {\n matrix.mul(m, parentTransform, m);\n }\n else {\n matrix.copy(m, parentTransform);\n }\n }\n this.transform = m;\n this._resolveGlobalScaleRatio(m);\n };\n Transformable.prototype._resolveGlobalScaleRatio = function (m) {\n var globalScaleRatio = this.globalScaleRatio;\n if (globalScaleRatio != null && globalScaleRatio !== 1) {\n this.getGlobalScale(scaleTmp);\n var relX = scaleTmp[0] < 0 ? -1 : 1;\n var relY = scaleTmp[1] < 0 ? -1 : 1;\n var sx = ((scaleTmp[0] - relX) * globalScaleRatio + relX) / scaleTmp[0] || 0;\n var sy = ((scaleTmp[1] - relY) * globalScaleRatio + relY) / scaleTmp[1] || 0;\n m[0] *= sx;\n m[1] *= sx;\n m[2] *= sy;\n m[3] *= sy;\n }\n this.invTransform = this.invTransform || matrix.create();\n matrix.invert(this.invTransform, m);\n };\n Transformable.prototype.getComputedTransform = function () {\n var transformNode = this;\n var ancestors = [];\n while (transformNode) {\n ancestors.push(transformNode);\n transformNode = transformNode.parent;\n }\n while (transformNode = ancestors.pop()) {\n transformNode.updateTransform();\n }\n return this.transform;\n };\n Transformable.prototype.setLocalTransform = function (m) {\n if (!m) {\n return;\n }\n var sx = m[0] * m[0] + m[1] * m[1];\n var sy = m[2] * m[2] + m[3] * m[3];\n var rotation = Math.atan2(m[1], m[0]);\n var shearX = Math.PI / 2 + rotation - Math.atan2(m[3], m[2]);\n sy = Math.sqrt(sy) * Math.cos(shearX);\n sx = Math.sqrt(sx);\n this.skewX = shearX;\n this.skewY = 0;\n this.rotation = -rotation;\n this.x = +m[4];\n this.y = +m[5];\n this.scaleX = sx;\n this.scaleY = sy;\n this.originX = 0;\n this.originY = 0;\n };\n Transformable.prototype.decomposeTransform = function () {\n if (!this.transform) {\n return;\n }\n var parent = this.parent;\n var m = this.transform;\n if (parent && parent.transform) {\n matrix.mul(tmpTransform, parent.invTransform, m);\n m = tmpTransform;\n }\n var ox = this.originX;\n var oy = this.originY;\n if (ox || oy) {\n originTransform[4] = ox;\n originTransform[5] = oy;\n matrix.mul(tmpTransform, m, originTransform);\n tmpTransform[4] -= ox;\n tmpTransform[5] -= oy;\n m = tmpTransform;\n }\n this.setLocalTransform(m);\n };\n Transformable.prototype.getGlobalScale = function (out) {\n var m = this.transform;\n out = out || [];\n if (!m) {\n out[0] = 1;\n out[1] = 1;\n return out;\n }\n out[0] = Math.sqrt(m[0] * m[0] + m[1] * m[1]);\n out[1] = Math.sqrt(m[2] * m[2] + m[3] * m[3]);\n if (m[0] < 0) {\n out[0] = -out[0];\n }\n if (m[3] < 0) {\n out[1] = -out[1];\n }\n return out;\n };\n Transformable.prototype.transformCoordToLocal = function (x, y) {\n var v2 = [x, y];\n var invTransform = this.invTransform;\n if (invTransform) {\n vector.applyTransform(v2, v2, invTransform);\n }\n return v2;\n };\n Transformable.prototype.transformCoordToGlobal = function (x, y) {\n var v2 = [x, y];\n var transform = this.transform;\n if (transform) {\n vector.applyTransform(v2, v2, transform);\n }\n return v2;\n };\n Transformable.prototype.getLineScale = function () {\n var m = this.transform;\n return m && abs(m[0] - 1) > 1e-10 && abs(m[3] - 1) > 1e-10\n ? Math.sqrt(abs(m[0] * m[3] - m[2] * m[1]))\n : 1;\n };\n Transformable.prototype.copyTransform = function (source) {\n copyTransform(this, source);\n };\n Transformable.getLocalTransform = function (target, m) {\n m = m || [];\n var ox = target.originX || 0;\n var oy = target.originY || 0;\n var sx = target.scaleX;\n var sy = target.scaleY;\n var ax = target.anchorX;\n var ay = target.anchorY;\n var rotation = target.rotation || 0;\n var x = target.x;\n var y = target.y;\n var skewX = target.skewX ? Math.tan(target.skewX) : 0;\n var skewY = target.skewY ? Math.tan(-target.skewY) : 0;\n if (ox || oy || ax || ay) {\n var dx = ox + ax;\n var dy = oy + ay;\n m[4] = -dx * sx - skewX * dy * sy;\n m[5] = -dy * sy - skewY * dx * sx;\n }\n else {\n m[4] = m[5] = 0;\n }\n m[0] = sx;\n m[3] = sy;\n m[1] = skewY * sx;\n m[2] = skewX * sy;\n rotation && matrix.rotate(m, m, rotation);\n m[4] += ox + x;\n m[5] += oy + y;\n return m;\n };\n Transformable.initDefaultProps = (function () {\n var proto = Transformable.prototype;\n proto.scaleX =\n proto.scaleY =\n proto.globalScaleRatio = 1;\n proto.x =\n proto.y =\n proto.originX =\n proto.originY =\n proto.skewX =\n proto.skewY =\n proto.rotation =\n proto.anchorX =\n proto.anchorY = 0;\n })();\n return Transformable;\n}());\n;\nexport var TRANSFORMABLE_PROPS = [\n 'x', 'y', 'originX', 'originY', 'anchorX', 'anchorY', 'rotation', 'scaleX', 'scaleY', 'skewX', 'skewY'\n];\nexport function copyTransform(target, source) {\n for (var i = 0; i < TRANSFORMABLE_PROPS.length; i++) {\n var propName = TRANSFORMABLE_PROPS[i];\n target[propName] = source[propName];\n }\n}\nexport default Transformable;\n"]},"metadata":{},"sourceType":"module"} |