mirror of
https://github.com/scratchfoundation/paper.js.git
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68 lines
1.7 KiB
JavaScript
68 lines
1.7 KiB
JavaScript
/*
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* Paper.js
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*
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* This file is part of Paper.js, a JavaScript Vector Graphics Library,
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* based on Scriptographer.org and designed to be largely API compatible.
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* http://paperjs.org/
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* http://scriptographer.org/
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*
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* Distributed under the MIT license. See LICENSE file for details.
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*
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* Copyright (c) 2011, Juerg Lehni & Jonathan Puckey
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* http://lehni.org/ & http://jonathanpuckey.com/
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*
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* All rights reserved.
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*/
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var Gradient = this.Gradient = Base.extend({
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beans: true,
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// TODO: should type here be called 'radial' and have it
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// receive a boolean value?
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initialize: function(stops, type) {
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if (!stops) {
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stops = [new GradientStop('white', 0),
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new GradientStop('black', 1)];
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}
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this.setStops(stops);
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this.type = type ? type : 'linear';
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},
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getStops: function() {
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return this._stops;
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},
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setStops: function(stops) {
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if (stops.length < 2)
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throw new Error(
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'Gradient stop list needs to contain at least two stops.');
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if (!(stops[0] instanceof GradientStop)) {
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for (var i = 0, l = stops.length; i < l; i++) {
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var rampPoint;
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var stop = stops[i];
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// If it is an array, the second argument is the rampPoint:
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if (stop.length) {
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rampPoint = stop[1];
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stop = stop[0];
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} else {
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// Otherwise stops is an array of colors, and we need to
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// calculate the midPoint:
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rampPoint = i / (l - 1);
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}
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stops[i] = new GradientStop(stop, rampPoint);
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}
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}
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this._stops = stops;
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},
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equals: function(gradient) {
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if (this.stops.length == gradient.stops.length) {
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for (var i = 0, l = this.stops.length; i < l; i++) {
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if (!this.stops[i].equals(gradient.stops[i]))
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return false;
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}
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return true;
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}
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return false;
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}
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});
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