app.js
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$(document).foundation();
$(document).ready(function() {
$("#owl-demo").owlCarousel({
singleItem: true,
lazyLoad : true,
navigation : true
});
var ringer = {
countdown_to: "11/07/2015",
rings: {
'DAYS': {
s: 86400000, // mseconds in a day,
max: 365
},
'HOURS': {
s: 3600000, // mseconds per hour,
max: 24
},
'MINUTES': {
s: 60000, // mseconds per minute
max: 60
},
'SECONDS': {
s: 1000,
max: 60
}
},
r_count: 4,
r_spacing: 10, // px
r_size: 75, // px
r_thickness: 2, // px
update_interval: 11, // ms
init: function(){
$r = ringer;
$r.cvs = document.createElement('canvas');
$r.size = {
w: ($r.r_size + $r.r_thickness) * $r.r_count + ($r.r_spacing*($r.r_count-1)),
h: ($r.r_size + $r.r_thickness)
};
$r.cvs.setAttribute('width',$r.size.w);
$r.cvs.setAttribute('height',$r.size.h);
$r.ctx = $r.cvs.getContext('2d');
$("#clock").html($r.cvs);
$r.cvs = $($r.cvs);
$r.ctx.textAlign = 'center';
$r.actual_size = $r.r_size + $r.r_thickness;
$r.countdown_to_time = new Date($r.countdown_to).getTime();
$r.cvs.css({ width: $r.size.w+"px", height: $r.size.h+"px" });
$r.go();
},
ctx: null,
go: function(){
var idx=0;
$r.time = (new Date().getTime()) - $r.countdown_to_time;
for(var r_key in $r.rings) $r.unit(idx++,r_key,$r.rings[r_key]);
setTimeout($r.go,$r.update_interval);
},
unit: function(idx,label,ring) {
var x,y, value, ring_secs = ring.s;
value = parseFloat($r.time/ring_secs);
$r.time-=Math.round(parseInt(value)) * ring_secs;
value = Math.abs(value);
x = ($r.r_size*.5 + $r.r_thickness*.5);
x +=+(idx*($r.r_size+$r.r_spacing+$r.r_thickness));
y = $r.r_size*.5;
y += $r.r_thickness*.5;
// calculate arc end angle
var degrees = 360-(value / ring.max) * 360.0;
var endAngle = degrees * (Math.PI / 180);
$r.ctx.save();
$r.ctx.translate(x,y);
$r.ctx.clearRect($r.actual_size*-0.5,$r.actual_size*-0.5,$r.actual_size,$r.actual_size);
// first circle
$r.ctx.strokeStyle = "rgba(128,128,128,0.2)";
$r.ctx.beginPath();
$r.ctx.arc(0,0,$r.r_size/2,0,2 * Math.PI, 2);
$r.ctx.lineWidth =$r.r_thickness;
$r.ctx.stroke();
// second circle
$r.ctx.strokeStyle = "rgba(253, 128, 1, 0.9)";
$r.ctx.beginPath();
$r.ctx.arc(0,0,$r.r_size/2,0,endAngle, 1);
$r.ctx.lineWidth =$r.r_thickness;
$r.ctx.stroke();
// label
$r.ctx.fillStyle = "#ffffff";
$r.ctx.font = '10px Helvetica';
$r.ctx.fillStyle = '#CCC';
$r.ctx.fillText(label, 0, 23);
$r.ctx.fillText(label, 0, 23);
$r.ctx.font = 'bold 30px Helvetica';
$r.ctx.fillText(Math.floor(value), 0, 5);
$r.ctx.restore();
}
}
ringer.init();
});