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minor tweaks and comments

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This commit is contained in:
Hakim El Hattab 2013-10-13 15:38:24 -04:00
parent 29c5af84be
commit 2de43199ef
2 changed files with 15 additions and 5 deletions
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16
js/reveal.js
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@ -2825,6 +2825,16 @@ var Reveal = (function(){
// --------------------------------------------------------------------//
/**
* Constructor for the playback component, which displays
* play/pause/progress controls.
*
* @param {HTMLElement} container The component will append
* itself to this
* @param {Function} progressCheck A method which will be
* called frequently to get the current progress on a range
* of 0-1
*/
function Playback( container, progressCheck ) {
this.size = 50;
@ -2883,6 +2893,8 @@ var Reveal = (function(){
x = this.size / 2,
y = this.size / 2;
var iconSize = 14;
var startAngle = - Math.PI / 2;
var endAngle = startAngle + ( progress * ( Math.PI * 2 ) );
@ -2902,15 +2914,13 @@ var Reveal = (function(){
this.context.strokeStyle = '#666';
this.context.stroke();
// Draw progress along arc edge
// Draw progress on top of track
this.context.beginPath();
this.context.arc( x, y, radius, startAngle, endAngle, false );
this.context.lineWidth = this.thickness;
this.context.strokeStyle = '#fff';
this.context.stroke();
var iconSize = 14;
this.context.translate( x - ( iconSize / 2 ), y - ( iconSize / 2 ) );
// Draw play/pause icons

4
js/reveal.min.js vendored
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