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https://gitee.com/onvia/ccc-tnt-psd2ui
synced 2024-12-28 04:27:42 +00:00
621 lines
18 KiB
JavaScript
621 lines
18 KiB
JavaScript
'use strict'
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const util = require('util')
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// DOMMatrix per https://drafts.fxtf.org/geometry/#DOMMatrix
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class DOMPoint {
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constructor (x, y, z, w) {
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if (typeof x === 'object' && x !== null) {
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w = x.w
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z = x.z
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y = x.y
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x = x.x
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}
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this.x = typeof x === 'number' ? x : 0
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this.y = typeof y === 'number' ? y : 0
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this.z = typeof z === 'number' ? z : 0
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this.w = typeof w === 'number' ? w : 1
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}
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}
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// Constants to index into _values (col-major)
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const M11 = 0; const M12 = 1; const M13 = 2; const M14 = 3
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const M21 = 4; const M22 = 5; const M23 = 6; const M24 = 7
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const M31 = 8; const M32 = 9; const M33 = 10; const M34 = 11
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const M41 = 12; const M42 = 13; const M43 = 14; const M44 = 15
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const DEGREE_PER_RAD = 180 / Math.PI
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const RAD_PER_DEGREE = Math.PI / 180
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function parseMatrix (init) {
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let parsed = init.replace('matrix(', '')
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parsed = parsed.split(',', 7) // 6 + 1 to handle too many params
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if (parsed.length !== 6) throw new Error(`Failed to parse ${init}`)
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parsed = parsed.map(parseFloat)
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return [
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parsed[0], parsed[1], 0, 0,
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parsed[2], parsed[3], 0, 0,
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0, 0, 1, 0,
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parsed[4], parsed[5], 0, 1
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]
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}
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function parseMatrix3d (init) {
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let parsed = init.replace('matrix3d(', '')
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parsed = parsed.split(',', 17) // 16 + 1 to handle too many params
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if (parsed.length !== 16) throw new Error(`Failed to parse ${init}`)
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return parsed.map(parseFloat)
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}
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function parseTransform (tform) {
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const type = tform.split('(', 1)[0]
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switch (type) {
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case 'matrix':
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return parseMatrix(tform)
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case 'matrix3d':
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return parseMatrix3d(tform)
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// TODO This is supposed to support any CSS transform value.
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default:
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throw new Error(`${type} parsing not implemented`)
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}
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}
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class DOMMatrix {
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constructor (init) {
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this._is2D = true
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this._values = new Float64Array([
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1, 0, 0, 0,
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0, 1, 0, 0,
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0, 0, 1, 0,
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0, 0, 0, 1
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])
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let i
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if (typeof init === 'string') { // parse CSS transformList
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if (init === '') return // default identity matrix
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const tforms = init.split(/\)\s+/, 20).map(parseTransform)
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if (tforms.length === 0) return
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init = tforms[0]
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for (i = 1; i < tforms.length; i++) init = multiply(tforms[i], init)
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}
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i = 0
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if (init && init.length === 6) {
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setNumber2D(this, M11, init[i++])
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setNumber2D(this, M12, init[i++])
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setNumber2D(this, M21, init[i++])
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setNumber2D(this, M22, init[i++])
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setNumber2D(this, M41, init[i++])
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setNumber2D(this, M42, init[i++])
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} else if (init && init.length === 16) {
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setNumber2D(this, M11, init[i++])
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setNumber2D(this, M12, init[i++])
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setNumber3D(this, M13, init[i++])
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setNumber3D(this, M14, init[i++])
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setNumber2D(this, M21, init[i++])
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setNumber2D(this, M22, init[i++])
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setNumber3D(this, M23, init[i++])
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setNumber3D(this, M24, init[i++])
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setNumber3D(this, M31, init[i++])
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setNumber3D(this, M32, init[i++])
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setNumber3D(this, M33, init[i++])
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setNumber3D(this, M34, init[i++])
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setNumber2D(this, M41, init[i++])
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setNumber2D(this, M42, init[i++])
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setNumber3D(this, M43, init[i++])
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setNumber3D(this, M44, init[i])
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} else if (init !== undefined) {
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throw new TypeError('Expected string or array.')
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}
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}
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toString () {
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return this.is2D
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? `matrix(${this.a}, ${this.b}, ${this.c}, ${this.d}, ${this.e}, ${this.f})`
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: `matrix3d(${this._values.join(', ')})`
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}
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multiply (other) {
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return newInstance(this._values).multiplySelf(other)
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}
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multiplySelf (other) {
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this._values = multiply(other._values, this._values)
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if (!other.is2D) this._is2D = false
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return this
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}
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preMultiplySelf (other) {
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this._values = multiply(this._values, other._values)
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if (!other.is2D) this._is2D = false
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return this
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}
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translate (tx, ty, tz) {
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return newInstance(this._values).translateSelf(tx, ty, tz)
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}
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translateSelf (tx, ty, tz) {
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if (typeof tx !== 'number') tx = 0
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if (typeof ty !== 'number') ty = 0
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if (typeof tz !== 'number') tz = 0
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this._values = multiply([
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1, 0, 0, 0,
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0, 1, 0, 0,
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0, 0, 1, 0,
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tx, ty, tz, 1
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], this._values)
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if (tz !== 0) this._is2D = false
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return this
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}
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scale (scaleX, scaleY, scaleZ, originX, originY, originZ) {
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return newInstance(this._values).scaleSelf(scaleX, scaleY, scaleZ, originX, originY, originZ)
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}
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scale3d (scale, originX, originY, originZ) {
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return newInstance(this._values).scale3dSelf(scale, originX, originY, originZ)
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}
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scale3dSelf (scale, originX, originY, originZ) {
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return this.scaleSelf(scale, scale, scale, originX, originY, originZ)
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}
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scaleSelf (scaleX, scaleY, scaleZ, originX, originY, originZ) {
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// Not redundant with translate's checks because we need to negate the values later.
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if (typeof originX !== 'number') originX = 0
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if (typeof originY !== 'number') originY = 0
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if (typeof originZ !== 'number') originZ = 0
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this.translateSelf(originX, originY, originZ)
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if (typeof scaleX !== 'number') scaleX = 1
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if (typeof scaleY !== 'number') scaleY = scaleX
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if (typeof scaleZ !== 'number') scaleZ = 1
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this._values = multiply([
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scaleX, 0, 0, 0,
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0, scaleY, 0, 0,
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0, 0, scaleZ, 0,
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0, 0, 0, 1
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], this._values)
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this.translateSelf(-originX, -originY, -originZ)
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if (scaleZ !== 1 || originZ !== 0) this._is2D = false
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return this
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}
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rotateFromVector (x, y) {
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return newInstance(this._values).rotateFromVectorSelf(x, y)
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}
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rotateFromVectorSelf (x, y) {
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if (typeof x !== 'number') x = 0
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if (typeof y !== 'number') y = 0
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const theta = (x === 0 && y === 0) ? 0 : Math.atan2(y, x) * DEGREE_PER_RAD
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return this.rotateSelf(theta)
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}
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rotate (rotX, rotY, rotZ) {
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return newInstance(this._values).rotateSelf(rotX, rotY, rotZ)
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}
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rotateSelf (rotX, rotY, rotZ) {
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if (rotY === undefined && rotZ === undefined) {
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rotZ = rotX
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rotX = rotY = 0
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}
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if (typeof rotY !== 'number') rotY = 0
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if (typeof rotZ !== 'number') rotZ = 0
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if (rotX !== 0 || rotY !== 0) this._is2D = false
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rotX *= RAD_PER_DEGREE
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rotY *= RAD_PER_DEGREE
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rotZ *= RAD_PER_DEGREE
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let c, s
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c = Math.cos(rotZ)
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s = Math.sin(rotZ)
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this._values = multiply([
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c, s, 0, 0,
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-s, c, 0, 0,
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0, 0, 1, 0,
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0, 0, 0, 1
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], this._values)
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c = Math.cos(rotY)
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s = Math.sin(rotY)
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this._values = multiply([
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c, 0, -s, 0,
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0, 1, 0, 0,
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s, 0, c, 0,
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0, 0, 0, 1
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], this._values)
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c = Math.cos(rotX)
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s = Math.sin(rotX)
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this._values = multiply([
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1, 0, 0, 0,
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0, c, s, 0,
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0, -s, c, 0,
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0, 0, 0, 1
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], this._values)
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return this
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}
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rotateAxisAngle (x, y, z, angle) {
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return newInstance(this._values).rotateAxisAngleSelf(x, y, z, angle)
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}
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rotateAxisAngleSelf (x, y, z, angle) {
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if (typeof x !== 'number') x = 0
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if (typeof y !== 'number') y = 0
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if (typeof z !== 'number') z = 0
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// Normalize axis
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const length = Math.sqrt(x * x + y * y + z * z)
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if (length === 0) return this
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if (length !== 1) {
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x /= length
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y /= length
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z /= length
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}
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angle *= RAD_PER_DEGREE
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const c = Math.cos(angle)
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const s = Math.sin(angle)
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const t = 1 - c
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const tx = t * x
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const ty = t * y
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// NB: This is the generic transform. If the axis is a major axis, there are
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// faster transforms.
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this._values = multiply([
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tx * x + c, tx * y + s * z, tx * z - s * y, 0,
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tx * y - s * z, ty * y + c, ty * z + s * x, 0,
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tx * z + s * y, ty * z - s * x, t * z * z + c, 0,
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0, 0, 0, 1
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], this._values)
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if (x !== 0 || y !== 0) this._is2D = false
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return this
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}
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skewX (sx) {
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return newInstance(this._values).skewXSelf(sx)
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}
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skewXSelf (sx) {
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if (typeof sx !== 'number') return this
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const t = Math.tan(sx * RAD_PER_DEGREE)
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this._values = multiply([
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1, 0, 0, 0,
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t, 1, 0, 0,
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0, 0, 1, 0,
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0, 0, 0, 1
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], this._values)
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return this
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}
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skewY (sy) {
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return newInstance(this._values).skewYSelf(sy)
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}
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skewYSelf (sy) {
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if (typeof sy !== 'number') return this
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const t = Math.tan(sy * RAD_PER_DEGREE)
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this._values = multiply([
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1, t, 0, 0,
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0, 1, 0, 0,
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0, 0, 1, 0,
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0, 0, 0, 1
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], this._values)
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return this
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}
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flipX () {
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return newInstance(multiply([
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-1, 0, 0, 0,
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0, 1, 0, 0,
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0, 0, 1, 0,
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0, 0, 0, 1
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], this._values))
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}
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flipY () {
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return newInstance(multiply([
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1, 0, 0, 0,
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0, -1, 0, 0,
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0, 0, 1, 0,
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0, 0, 0, 1
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], this._values))
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}
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inverse () {
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return newInstance(this._values).invertSelf()
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}
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invertSelf () {
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const m = this._values
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const inv = m.map(v => 0)
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inv[0] = m[5] * m[10] * m[15] -
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m[5] * m[11] * m[14] -
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m[9] * m[6] * m[15] +
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m[9] * m[7] * m[14] +
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m[13] * m[6] * m[11] -
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m[13] * m[7] * m[10]
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inv[4] = -m[4] * m[10] * m[15] +
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m[4] * m[11] * m[14] +
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m[8] * m[6] * m[15] -
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m[8] * m[7] * m[14] -
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m[12] * m[6] * m[11] +
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m[12] * m[7] * m[10]
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inv[8] = m[4] * m[9] * m[15] -
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m[4] * m[11] * m[13] -
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m[8] * m[5] * m[15] +
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m[8] * m[7] * m[13] +
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m[12] * m[5] * m[11] -
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m[12] * m[7] * m[9]
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inv[12] = -m[4] * m[9] * m[14] +
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m[4] * m[10] * m[13] +
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m[8] * m[5] * m[14] -
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m[8] * m[6] * m[13] -
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m[12] * m[5] * m[10] +
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m[12] * m[6] * m[9]
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// If the determinant is zero, this matrix cannot be inverted, and all
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// values should be set to NaN, with the is2D flag set to false.
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const det = m[0] * inv[0] + m[1] * inv[4] + m[2] * inv[8] + m[3] * inv[12]
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if (det === 0) {
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this._values = m.map(v => NaN)
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this._is2D = false
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return this
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}
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inv[1] = -m[1] * m[10] * m[15] +
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m[1] * m[11] * m[14] +
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m[9] * m[2] * m[15] -
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m[9] * m[3] * m[14] -
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m[13] * m[2] * m[11] +
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m[13] * m[3] * m[10]
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inv[5] = m[0] * m[10] * m[15] -
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m[0] * m[11] * m[14] -
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m[8] * m[2] * m[15] +
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m[8] * m[3] * m[14] +
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m[12] * m[2] * m[11] -
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m[12] * m[3] * m[10]
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inv[9] = -m[0] * m[9] * m[15] +
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m[0] * m[11] * m[13] +
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m[8] * m[1] * m[15] -
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m[8] * m[3] * m[13] -
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m[12] * m[1] * m[11] +
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m[12] * m[3] * m[9]
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inv[13] = m[0] * m[9] * m[14] -
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m[0] * m[10] * m[13] -
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m[8] * m[1] * m[14] +
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m[8] * m[2] * m[13] +
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m[12] * m[1] * m[10] -
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m[12] * m[2] * m[9]
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inv[2] = m[1] * m[6] * m[15] -
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m[1] * m[7] * m[14] -
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m[5] * m[2] * m[15] +
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m[5] * m[3] * m[14] +
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m[13] * m[2] * m[7] -
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m[13] * m[3] * m[6]
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inv[6] = -m[0] * m[6] * m[15] +
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m[0] * m[7] * m[14] +
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m[4] * m[2] * m[15] -
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m[4] * m[3] * m[14] -
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m[12] * m[2] * m[7] +
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m[12] * m[3] * m[6]
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inv[10] = m[0] * m[5] * m[15] -
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m[0] * m[7] * m[13] -
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m[4] * m[1] * m[15] +
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m[4] * m[3] * m[13] +
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m[12] * m[1] * m[7] -
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m[12] * m[3] * m[5]
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inv[14] = -m[0] * m[5] * m[14] +
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m[0] * m[6] * m[13] +
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m[4] * m[1] * m[14] -
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m[4] * m[2] * m[13] -
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m[12] * m[1] * m[6] +
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m[12] * m[2] * m[5]
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inv[3] = -m[1] * m[6] * m[11] +
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m[1] * m[7] * m[10] +
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m[5] * m[2] * m[11] -
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m[5] * m[3] * m[10] -
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m[9] * m[2] * m[7] +
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m[9] * m[3] * m[6]
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inv[7] = m[0] * m[6] * m[11] -
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m[0] * m[7] * m[10] -
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m[4] * m[2] * m[11] +
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m[4] * m[3] * m[10] +
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m[8] * m[2] * m[7] -
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m[8] * m[3] * m[6]
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inv[11] = -m[0] * m[5] * m[11] +
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m[0] * m[7] * m[9] +
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m[4] * m[1] * m[11] -
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m[4] * m[3] * m[9] -
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m[8] * m[1] * m[7] +
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m[8] * m[3] * m[5]
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inv[15] = m[0] * m[5] * m[10] -
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m[0] * m[6] * m[9] -
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m[4] * m[1] * m[10] +
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m[4] * m[2] * m[9] +
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m[8] * m[1] * m[6] -
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m[8] * m[2] * m[5]
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inv.forEach((v, i) => { inv[i] = v / det })
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this._values = inv
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return this
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}
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setMatrixValue (transformList) {
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const temp = new DOMMatrix(transformList)
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this._values = temp._values
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this._is2D = temp._is2D
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return this
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}
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transformPoint (point) {
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point = new DOMPoint(point)
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const x = point.x
|
|
const y = point.y
|
|
const z = point.z
|
|
const w = point.w
|
|
const values = this._values
|
|
const nx = values[M11] * x + values[M21] * y + values[M31] * z + values[M41] * w
|
|
const ny = values[M12] * x + values[M22] * y + values[M32] * z + values[M42] * w
|
|
const nz = values[M13] * x + values[M23] * y + values[M33] * z + values[M43] * w
|
|
const nw = values[M14] * x + values[M24] * y + values[M34] * z + values[M44] * w
|
|
return new DOMPoint(nx, ny, nz, nw)
|
|
}
|
|
|
|
toFloat32Array () {
|
|
return Float32Array.from(this._values)
|
|
}
|
|
|
|
toFloat64Array () {
|
|
return this._values.slice(0)
|
|
}
|
|
|
|
static fromMatrix (init) {
|
|
if (!(init instanceof DOMMatrix)) throw new TypeError('Expected DOMMatrix')
|
|
return new DOMMatrix(init._values)
|
|
}
|
|
|
|
static fromFloat32Array (init) {
|
|
if (!(init instanceof Float32Array)) throw new TypeError('Expected Float32Array')
|
|
return new DOMMatrix(init)
|
|
}
|
|
|
|
static fromFloat64Array (init) {
|
|
if (!(init instanceof Float64Array)) throw new TypeError('Expected Float64Array')
|
|
return new DOMMatrix(init)
|
|
}
|
|
|
|
[util.inspect.custom || 'inspect'] (depth, options) {
|
|
if (depth < 0) return '[DOMMatrix]'
|
|
|
|
return `DOMMatrix [
|
|
a: ${this.a}
|
|
b: ${this.b}
|
|
c: ${this.c}
|
|
d: ${this.d}
|
|
e: ${this.e}
|
|
f: ${this.f}
|
|
m11: ${this.m11}
|
|
m12: ${this.m12}
|
|
m13: ${this.m13}
|
|
m14: ${this.m14}
|
|
m21: ${this.m21}
|
|
m22: ${this.m22}
|
|
m23: ${this.m23}
|
|
m23: ${this.m23}
|
|
m31: ${this.m31}
|
|
m32: ${this.m32}
|
|
m33: ${this.m33}
|
|
m34: ${this.m34}
|
|
m41: ${this.m41}
|
|
m42: ${this.m42}
|
|
m43: ${this.m43}
|
|
m44: ${this.m44}
|
|
is2D: ${this.is2D}
|
|
isIdentity: ${this.isIdentity} ]`
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Checks that `value` is a number and sets the value.
|
|
*/
|
|
function setNumber2D (receiver, index, value) {
|
|
if (typeof value !== 'number') throw new TypeError('Expected number')
|
|
return (receiver._values[index] = value)
|
|
}
|
|
|
|
/**
|
|
* Checks that `value` is a number, sets `_is2D = false` if necessary and sets
|
|
* the value.
|
|
*/
|
|
function setNumber3D (receiver, index, value) {
|
|
if (typeof value !== 'number') throw new TypeError('Expected number')
|
|
if (index === M33 || index === M44) {
|
|
if (value !== 1) receiver._is2D = false
|
|
} else if (value !== 0) receiver._is2D = false
|
|
return (receiver._values[index] = value)
|
|
}
|
|
|
|
Object.defineProperties(DOMMatrix.prototype, {
|
|
m11: { get () { return this._values[M11] }, set (v) { return setNumber2D(this, M11, v) } },
|
|
m12: { get () { return this._values[M12] }, set (v) { return setNumber2D(this, M12, v) } },
|
|
m13: { get () { return this._values[M13] }, set (v) { return setNumber3D(this, M13, v) } },
|
|
m14: { get () { return this._values[M14] }, set (v) { return setNumber3D(this, M14, v) } },
|
|
m21: { get () { return this._values[M21] }, set (v) { return setNumber2D(this, M21, v) } },
|
|
m22: { get () { return this._values[M22] }, set (v) { return setNumber2D(this, M22, v) } },
|
|
m23: { get () { return this._values[M23] }, set (v) { return setNumber3D(this, M23, v) } },
|
|
m24: { get () { return this._values[M24] }, set (v) { return setNumber3D(this, M24, v) } },
|
|
m31: { get () { return this._values[M31] }, set (v) { return setNumber3D(this, M31, v) } },
|
|
m32: { get () { return this._values[M32] }, set (v) { return setNumber3D(this, M32, v) } },
|
|
m33: { get () { return this._values[M33] }, set (v) { return setNumber3D(this, M33, v) } },
|
|
m34: { get () { return this._values[M34] }, set (v) { return setNumber3D(this, M34, v) } },
|
|
m41: { get () { return this._values[M41] }, set (v) { return setNumber2D(this, M41, v) } },
|
|
m42: { get () { return this._values[M42] }, set (v) { return setNumber2D(this, M42, v) } },
|
|
m43: { get () { return this._values[M43] }, set (v) { return setNumber3D(this, M43, v) } },
|
|
m44: { get () { return this._values[M44] }, set (v) { return setNumber3D(this, M44, v) } },
|
|
|
|
a: { get () { return this.m11 }, set (v) { return (this.m11 = v) } },
|
|
b: { get () { return this.m12 }, set (v) { return (this.m12 = v) } },
|
|
c: { get () { return this.m21 }, set (v) { return (this.m21 = v) } },
|
|
d: { get () { return this.m22 }, set (v) { return (this.m22 = v) } },
|
|
e: { get () { return this.m41 }, set (v) { return (this.m41 = v) } },
|
|
f: { get () { return this.m42 }, set (v) { return (this.m42 = v) } },
|
|
|
|
is2D: { get () { return this._is2D } }, // read-only
|
|
|
|
isIdentity: {
|
|
get () {
|
|
const values = this._values
|
|
return (values[M11] === 1 && values[M12] === 0 && values[M13] === 0 && values[M14] === 0 &&
|
|
values[M21] === 0 && values[M22] === 1 && values[M23] === 0 && values[M24] === 0 &&
|
|
values[M31] === 0 && values[M32] === 0 && values[M33] === 1 && values[M34] === 0 &&
|
|
values[M41] === 0 && values[M42] === 0 && values[M43] === 0 && values[M44] === 1)
|
|
}
|
|
}
|
|
})
|
|
|
|
/**
|
|
* Instantiates a DOMMatrix, bypassing the constructor.
|
|
* @param {Float64Array} values Value to assign to `_values`. This is assigned
|
|
* without copying (okay because all usages are followed by a multiply).
|
|
*/
|
|
function newInstance (values) {
|
|
const instance = Object.create(DOMMatrix.prototype)
|
|
instance.constructor = DOMMatrix
|
|
instance._is2D = true
|
|
instance._values = values
|
|
return instance
|
|
}
|
|
|
|
function multiply (A, B) {
|
|
const dest = new Float64Array(16)
|
|
for (let i = 0; i < 4; i++) {
|
|
for (let j = 0; j < 4; j++) {
|
|
let sum = 0
|
|
for (let k = 0; k < 4; k++) {
|
|
sum += A[i * 4 + k] * B[k * 4 + j]
|
|
}
|
|
dest[i * 4 + j] = sum
|
|
}
|
|
}
|
|
return dest
|
|
}
|
|
|
|
module.exports = { DOMMatrix, DOMPoint }
|