diff -r d334a616c023 -r e16a97fb364a src/cm/media/js/lib/yui/yui3-3.15.0/build/anim-curve/anim-curve-debug.js --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/cm/media/js/lib/yui/yui3-3.15.0/build/anim-curve/anim-curve-debug.js Mon Mar 10 15:19:48 2014 +0100 @@ -0,0 +1,59 @@ +YUI.add('anim-curve', function (Y, NAME) { + +/** + * Adds support for the curve property for the to + * attribute. A curve is zero or more control points and an end point. + * @module anim + * @submodule anim-curve + */ + +Y.Anim.behaviors.curve = { + set: function(anim, att, from, to, elapsed, duration, fn) { + from = from.slice.call(from); + to = to.slice.call(to); + var t = fn(elapsed, 0, 100, duration) / 100; + to.unshift(from); + anim._node.setXY(Y.Anim.getBezier(to, t)); + }, + + get: function(anim) { + return anim._node.getXY(); + } +}; + +/** + * Get the current position of the animated element based on t. + * Each point is an array of "x" and "y" values (0 = x, 1 = y) + * At least 2 points are required (start and end). + * First point is start. Last point is end. + * Additional control points are optional. + * @for Anim + * @method getBezier + * @static + * @param {Number[]} points An array containing Bezier points + * @param {Number} t A number between 0 and 1 which is the basis for determining current position + * @return {Number[]} An array containing int x and y member data + */ +Y.Anim.getBezier = function(points, t) { + var n = points.length, + tmp = [], + i, + j; + + for (i = 0; i < n; ++i){ + tmp[i] = [points[i][0], points[i][1]]; // save input + } + + for (j = 1; j < n; ++j) { + for (i = 0; i < n - j; ++i) { + tmp[i][0] = (1 - t) * tmp[i][0] + t * tmp[parseInt(i + 1, 10)][0]; + tmp[i][1] = (1 - t) * tmp[i][1] + t * tmp[parseInt(i + 1, 10)][1]; + } + } + + return [ tmp[0][0], tmp[0][1] ]; + +}; + + +}, '@VERSION@', {"requires": ["anim-xy"]});