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SVG.Morphable = SVG.invent({
create: function (stepper) {
// FIXME: the default stepper does not know about easing
this._stepper = stepper || new SVG.Ease('-')
this._from = null
this._to = null
this._type = null
this._context = null
this._morphObj = null
},
extend: {
from: function (val) {
if (val == null) {
return this._from
}
this._from = this._set(val)
return this
},
to: function (val) {
if (val == null) {
return this._to
}
this._to = this._set(val)
return this
},
type: function (type) {
// getter
if (type == null) {
return this._type
}
// setter
this._type = type
return this
},
_set: function (value) {
if (!this._type) {
var type = typeof value
if (type === 'number') {
this.type(SVG.Number)
} else if (type === 'string') {
if (SVG.Color.isColor(value)) {
this.type(SVG.Color)
} else if (SVG.regex.delimiter.test(value)) {
this.type(SVG.regex.pathLetters.test(value)
? SVG.PathArray
: SVG.Array
)
} else if (SVG.regex.numberAndUnit.test(value)) {
this.type(SVG.Number)
} else {
this.type(SVG.Morphable.NonMorphable)
}
} else if (SVG.MorphableTypes.indexOf(value.constructor) > -1) {
this.type(value.constructor)
} else if (Array.isArray(value)) {
this.type(SVG.Array)
} else if (type === 'object') {
this.type(SVG.Morphable.ObjectBag)
} else {
this.type(SVG.Morphable.NonMorphable)
}
}
var result = (new this._type(value)).toArray()
this._morphObj = this._morphObj || new this._type()
this._context = this._context ||
Array.apply(null, Array(result.length)).map(Object)
return result
},
stepper: function (stepper) {
if (stepper == null) return this._stepper
this._stepper = stepper
return this
},
done: function () {
var complete = this._context
.map(this._stepper.done)
.reduce(function (last, curr) {
return last && curr
}, true)
return complete
},
at: function (pos) {
var _this = this
return this._morphObj.fromArray(
this._from.map(function (i, index) {
return _this._stepper.step(i, _this._to[index], pos, _this._context[index], _this._context)
})
)
}
}
})
SVG.Morphable.NonMorphable = SVG.invent({
create: function (val) {
val = Array.isArray(val) ? val[0] : val
this.value = val
},
extend: {
valueOf: function () {
return this.value
},
toArray: function () {
return [this.value]
}
}
})
SVG.Morphable.TransformBag = SVG.invent({
create: function (obj) {
if (Array.isArray(obj)) {
obj = {
scaleX: obj[0],
scaleY: obj[1],
shear: obj[2],
rotate: obj[3],
translateX: obj[4],
translateY: obj[5],
originX: obj[6],
originY: obj[7]
}
}
Object.assign(this, SVG.Morphable.TransformBag.defaults, obj)
},
extend: {
toArray: function () {
var v = this
return [
v.scaleX,
v.scaleY,
v.shear,
v.rotate,
v.translateX,
v.translateY,
v.originX,
v.originY
]
}
}
})
SVG.Morphable.TransformBag.defaults = {
scaleX: 1,
scaleY: 1,
shear: 0,
rotate: 0,
translateX: 0,
translateY: 0,
originX: 0,
originY: 0
}
SVG.Morphable.ObjectBag = SVG.invent({
create: function (objOrArr) {
this.values = []
if (Array.isArray(objOrArr)) {
this.values = objOrArr
return
}
var entries = Object.entries(objOrArr || {}).sort((a, b) => {
return a[0] - b[0]
})
this.values = entries.reduce((last, curr) => last.concat(curr), [])
},
extend: {
valueOf: function () {
var obj = {}
var arr = this.values
for (var i = 0, len = arr.length; i < len; i += 2) {
obj[arr[i]] = arr[i + 1]
}
return obj
},
toArray: function () {
return this.values
}
}
})
SVG.MorphableTypes = [
SVG.Number,
SVG.Color,
SVG.Box,
SVG.Matrix,
SVG.Array,
SVG.PointArray,
SVG.PathArray,
SVG.Morphable.NonMorphable,
SVG.Morphable.TransformBag,
SVG.Morphable.ObjectBag
]
SVG.extend(SVG.MorphableTypes, {
to: function (val, args) {
return new SVG.Morphable()
.type(this.constructor)
.from(this.valueOf())
.to(val, args)
},
fromArray: function (arr) {
this.constructor(arr)
return this
}
})
|
