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

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