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pixbit/index.html

Created July 27, 2012 00:45
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Colorful Canvas Screen
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Colorful Canvas Screen &middot; CodePen</title>
<!--
Copyright (c) 2012 Jack Rugile, http://codepen.io/jackrugile
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-->
<link rel="stylesheet" href="http://codepen.io/stylesheets/css/normalize.css">
<style>
#canvas-wrap {
left: 50%;
margin: -50px 0 0 -56px;
position: absolute;
top: 50%;
}
canvas {
background: linear-gradient(45deg, #222, #444);
border-radius: 5px 5px 0 0;
display: block;
padding: 6px;
}
#bottom-panel {
background: linear-gradient(0deg, #bbb, #ddd);
border-radius: 0 0 5px 5px;
height: 12px;
}
#stand-top {
background: linear-gradient(#bbb, #ccc);
height: 12px;
margin: 0 auto;
width: 16px;
}
#stand-bottom {
background: linear-gradient(#bbb, #ccc);
border-radius: 3px;
height: 4px;
margin: 0 auto;
width: 26px;
}
</style>
<style>
#codepen-footer, #codepen-footer * {
-webkit-box-sizing: border-box !important;
-moz-box-sizing: border-box !important;
box-sizing: border-box !important;
}
#codepen-footer {
display: block !important;
position: fixed !important;
bottom: 0 !important;
left: 0 !important;
width: 100% !important;
padding: 0 10px !important;
margin: 0 !important;
height: 30px !important;
line-height: 30px !important;
font-size: 12px !important;
color: #eeeeee !important;
background-color: #505050 !important;
text-align: left !important;
background: -webkit-linear-gradient(top, #505050, #383838) !important;
background: -moz-linear-gradient(top, #505050, #383838) !important;
background: -ms-linear-gradient(top, #505050, #383838) !important;
background: -o-linear-gradient(top, #505050, #383838) !important;
border-top: 1px solid black !important;
border-bottom: 1px solid black !important;
border-radius: 0 !important;
border-image: none !important;
box-shadow: inset 0 1px 0 #6e6e6e, 0 2px 2px rgba(0, 0, 0, 0.4) !important;
z-index: 300 !important;
font-family: "Lucida Grande", "Lucida Sans Unicode", Tahoma, sans-serif !important;
letter-spacing: 0 !important;
word-spacing: normal !important;
word-spacing: 0 !important;
-webkit-transform: none !important;
-moz-transform: none !important;
-ms-transform: none !important;
-o-transform: none !important;
transform: none !important;
}
#codepen-footer a {
color: #a7a7a7 !important;
text-decoration: none !important;
text-shadow: none !important;
border: 0 !important;
}
#codepen-footer a:hover {
color: white !important;
}
</style>
<script>
// Kill alerts, confirmations and prompts
// window.alert = function(){}; we're going to allow alerts for now
window.confirm = function(){};
window.prompt = function(){};
window.open = function(){};
window.print = function(){};
</script>
<script src="http://codepen.io/javascripts/libs/prefixfree.min.js"></script>
</head>
<body>
<div id="canvas-wrap">
<canvas id="screen"></canvas>
<div id="bottom-panel"></div>
<div id="stand-top"></div>
<div id="stand-bottom"></div>
</div>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
(function() {
// requestAnimationFrame shim, thanks Paul Irish: http://bit.ly/fxq7EY
window.requestAnimFrame=function(){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(a){window.setTimeout(a,1E3/60)}}();
// initial canvas, variable, and utility function definitions
var canvas = document.getElementById('screen');
canvas.width = 100;
canvas.height = 60;
var ctx = canvas.getContext('2d');
ctx.lineWidth = .5;
var cw = canvas.width;
var ch = canvas.height;
var hue = 0;
var rand = function(rMi, rMa){return ~~((Math.random()*(rMa-rMi+1))+rMi);};
var draw = function(){
// clear canvas
ctx.clearRect(0,0,cw,ch);
// render 2x2 pixel colors
var iw = Math.floor(cw/2);
while(iw--){
var ih = Math.floor(ch/2);
while(ih--){
ctx.fillStyle = 'hsla('+(hue+rand(0, 30)+iw)+', 100%, '+(80-ih)+'%, '+rand(80,100)/100+')';
ctx.fillRect(Math.floor(iw*2),Math.floor(ih*2),2,2);
}
}
// render dark horizontal lines
ctx.strokeStyle = 'hsla(0, 100%, 0%, .3)';
var j = Math.floor(ch/2);
ctx.beginPath();
while(j--){
ctx.moveTo(0, (j*2)+.5);
ctx.lineTo(cw, (j*2)+.5);
}
ctx.stroke();
// rendd diagonal highlight
ctx.strokeStyle = 'hsla(0, 100%, 100%, .3)';
var z = Math.floor(ch/2);
ctx.beginPath();
while(z--){
ctx.moveTo(0, (z*2)+.5);
ctx.lineTo(cw, 0);
}
ctx.stroke();
// cycle the hue
if(hue < 360){
hue += 1;
} else {
hue = 0;
}
// well, let's do it again!
requestAnimFrame(draw, canvas);
}
draw();
})();
</script>
<div id="codepen-footer">
<a style="color: #f73535 !important;" href="https://codepen.wufoo.com/forms/m7x3r3/def/field14=" onclick="window.open(this.href, null, 'height=517, width=680, toolbar=0, location=0, status=1, scrollbars=1, resizable=1'); return false">Report Abuse</a>
&nbsp;
<a href="/jackrugile/pen/AJfaB" target="_blank">Edit this Pen</a>
</div>
</body>
</html>
Raw
index.js
// requestAnimationFrame shim, thanks Paul Irish: http://bit.ly/fxq7EY
window.requestAnimFrame=function(){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(a){window.setTimeout(a,1E3/60)}}();
// initial canvas, variable, and utility function definitions
var canvas = document.getElementById('screen');
canvas.width = 100;
canvas.height = 60;
var ctx = canvas.getContext('2d');
ctx.lineWidth = .5;
var cw = canvas.width;
var ch = canvas.height;
var hue = 0;
var rand = function(rMi, rMa){return ~~((Math.random()*(rMa-rMi+1))+rMi);};
var draw = function(){
// clear canvas
ctx.clearRect(0,0,cw,ch);
// render 2x2 pixel colors
var iw = Math.floor(cw/2);
while(iw--){
var ih = Math.floor(ch/2);
while(ih--){
ctx.fillStyle = 'hsla('+(hue+rand(0, 30)+iw)+', 100%, '+(80-ih)+'%, '+rand(80,100)/100+')';
ctx.fillRect(Math.floor(iw*2),Math.floor(ih*2),2,2);
}
}
// render dark horizontal lines
ctx.strokeStyle = 'hsla(0, 100%, 0%, .3)';
var j = Math.floor(ch/2);
ctx.beginPath();
while(j--){
ctx.moveTo(0, (j*2)+.5);
ctx.lineTo(cw, (j*2)+.5);
}
ctx.stroke();
// rendd diagonal highlight
ctx.strokeStyle = 'hsla(0, 100%, 100%, .3)';
var z = Math.floor(ch/2);
ctx.beginPath();
while(z--){
ctx.moveTo(0, (z*2)+.5);
ctx.lineTo(cw, 0);
}
ctx.stroke();
// cycle the hue
if(hue < 360){
hue += 1;
} else {
hue = 0;
}
// well, let's do it again!
requestAnimFrame(draw, canvas);
}
draw();
Raw
markup.html
<div id="canvas-wrap">
<canvas id="screen"></canvas>
<div id="bottom-panel"></div>
<div id="stand-top"></div>
<div id="stand-bottom"></div>
</div>
Raw
style.css
#canvas-wrap {
left: 50%;
margin: -50px 0 0 -56px;
position: absolute;
top: 50%;
}
canvas {
background: linear-gradient(45deg, #222, #444);
border-radius: 5px 5px 0 0;
display: block;
padding: 6px;
}
#bottom-panel {
background: linear-gradient(0deg, #bbb, #ddd);
border-radius: 0 0 5px 5px;
height: 12px;
}
#stand-top {
background: linear-gradient(#bbb, #ccc);
height: 12px;
margin: 0 auto;
width: 16px;
}
#stand-bottom {
background: linear-gradient(#bbb, #ccc);
border-radius: 3px;
height: 4px;
margin: 0 auto;
width: 26px;
}
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