64 lines
2.1 KiB
JavaScript
64 lines
2.1 KiB
JavaScript
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//>>built
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define("dojox/fx/_core", ["dojo/_base/lang", "dojo/_base/array","./_base"],
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function(lang, arrayUtil, dojoxFx){
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/*===== var dojox.fx._Line = line =====*/
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var line = function(start, end){
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// summary: a custom _Line to accomodate multi-dimensional values
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//
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// description:
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// a normal dojo._Line is the curve, and does Line(start,end)
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// for propertyAnimation. as we make more complicatied animations, we realize
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// some properties can have 2, or 4 values relevant (x,y) or (t,l,r,b) for example
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//
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// this function provides support for those Lines, and is ported directly from 0.4
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// this is a lot of extra code for something so seldom used, so we'll put it here as
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// and optional core addition. you can create a new line, and use it during onAnimate
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// as you see fit.
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//
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// start: Integer|Array
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// An Integer (or an Array of integers) to use as a starting point
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// end: Integer|Array
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// An Integer (or an Array of integers) to use as an ending point
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//
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// example: see dojox.fx.smoothScroll
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//
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// example:
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// | // this is 10 .. 100 and 50 .. 500
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// | var curve = new dojox.fx._Line([10,50],[100,500]);
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// | // dojo.Animation.onAnimate is called at every step of the animation
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// | // to define current values. this _Line returns an array
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// | // at each step. arguments[0] and [1] in this example.
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//
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this.start = start;
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this.end = end;
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var isArray = lang.isArray(start),
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d = (isArray ? [] : end - start);
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if(isArray){
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// multi-dimensional branch
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arrayUtil.forEach(this.start, function(s, i){
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d[i] = this.end[i] - s;
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}, this);
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this.getValue = function(/*float*/ n){
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var res = [];
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arrayUtil.forEach(this.start, function(s, i){
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res[i] = (d[i] * n) + s;
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}, this);
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return res; // Array
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}
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}else{
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// single value branch, document here for both branches:
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this.getValue = function(/*float*/ n){
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// summary: Returns the point on the line, or an array of points
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// n: a floating point number greater than 0 and less than 1
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// returns: Mixed
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return (d * n) + this.start; // Decimal
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}
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}
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};
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dojoxFx._Line = line; // COMPAT
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return line;
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});
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