84 lines
2.3 KiB
JavaScript
84 lines
2.3 KiB
JavaScript
// Module for array conversion
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SVG.Array = function(array, fallback) {
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array = (array || []).valueOf()
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// if array is empty and fallback is provided, use fallback
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if (array.length == 0 && fallback)
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array = fallback.valueOf()
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// parse array
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this.value = this.parse(array)
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}
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SVG.extend(SVG.Array, {
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// Make array morphable
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morph: function(array) {
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this.destination = this.parse(array)
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// normalize length of arrays
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if (this.value.length != this.destination.length) {
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var lastValue = this.value[this.value.length - 1]
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, lastDestination = this.destination[this.destination.length - 1]
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while(this.value.length > this.destination.length)
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this.destination.push(lastDestination)
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while(this.value.length < this.destination.length)
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this.value.push(lastValue)
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}
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return this
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}
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// Clean up any duplicate points
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, settle: function() {
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// find all unique values
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for (var i = 0, il = this.value.length, seen = []; i < il; i++)
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if (seen.indexOf(this.value[i]) == -1)
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seen.push(this.value[i])
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// set new value
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return this.value = seen
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}
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// Get morphed array at given position
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, at: function(pos) {
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// make sure a destination is defined
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if (!this.destination) return this
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// generate morphed array
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for (var i = 0, il = this.value.length, array = []; i < il; i++)
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array.push(this.value[i] + (this.destination[i] - this.value[i]) * pos)
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return new SVG.Array(array)
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}
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// Convert array to string
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, toString: function() {
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return this.value.join(' ')
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}
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// Real value
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, valueOf: function() {
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return this.value
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}
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// Parse whitespace separated string
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, parse: function(array) {
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array = array.valueOf()
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// if already is an array, no need to parse it
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if (Array.isArray(array)) return array
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return this.split(array)
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}
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// Strip unnecessary whitespace
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, split: function(string) {
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return string.trim().split(SVG.regex.delimiter).map(parseFloat)
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}
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// Reverse array
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, reverse: function() {
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this.value.reverse()
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return this
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}
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, clone: function() {
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var clone = new this.constructor()
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clone.value = array_clone(this.value)
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return clone
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}
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}) |