This commit is contained in:
Mahdi Dibaiee 2014-02-01 21:48:29 +03:30
parent edf062d88d
commit 2cff4ee46f
9 changed files with 343 additions and 0 deletions

2
.gitignore vendored Normal file
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*.swp
*.swo

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css/imgs/menu.png Normal file

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css/main.less Normal file
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html, body {
margin: 0;
font-size: 10px;
}
*::-moz-focus-inner {
border: none;
}
*:focus {
outline: none;
}
canvas {
border: 1px solid gray;
}
header {
width: 100%;
height: 5rem;
background: #4d4d4d;
background: -moz-linear-gradient(top, #4d4d4d 0%, #333333 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#4d4d4d), color-stop(100%,#333333));
background: -webkit-linear-gradient(top, #4d4d4d 0%,#333333 100%);
background: -o-linear-gradient(top, #4d4d4d 0%,#333333 100%);
background: -ms-linear-gradient(top, #4d4d4d 0%,#333333 100%);
background: linear-gradient(to bottom, #4d4d4d 0%,#333333 100%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#4d4d4d', endColorstr='#333333',GradientType=0 );
#menu {
width: 3rem;
height: 5rem;
position: relative;
lefT: -0.9rem;
background: url('imgs/menu.png') center center no-repeat, darken(#4d4d4d, 10%);
-moz-appearance: none;
border: none;
}
}

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index.html Normal file
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<!DOCTYPE html>
<html>
<head>
<title></title>
<meta charset='UTF-8'>
<link rel='stylesheet/less' href='css/main.less'>
<script src='js/less-1.5.0.min.js'></script>
</head>
<body>
<header>
<button id='menu'></button>
</header>
<canvas></canvas>
<script src='js/libs/zepto.min.js'></script>
<script src='js/functions.js'></script>
<script src='js/main.js'></script>
</body>
</html>

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js/functions.js Normal file
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"use strict";
/*** ESSENTIALS ***/
function sizeAndPos() {
var data = c.getImageData(0,0, $c.width(), $c.height());
var w = $(window).width(),
h = $(window).height();
$c.css({'margin-left': w * .05,
'margin-top': h * .05
})
$c.attr('width', w * .9);
$c.attr('height',h * .9 - 50);
c.clearRect(0,0, $c.width(), $c.height());
c.putImageData(data, 0, 0);
}
function relative(x,y) {
return {
x : x - $c.offset().left,
y : y - $c.offset().top
}
}
function threshold(x1, y1, x2, y2, threshold) {
var tr = threshold || 5;
if( x1 <= x2 + tr && x1 >= x2 - tr && y1 <= y2 + tr && y1 >= y2 - tr ) return true;
return false;
}
function line(x1, y1, x2, y2, opts) {
opts = opts || {};
c.beginPath();
c.lineCap = opts.lineCap || settings.lineCap;
c.lineJoin = opts.lineJoin || settings.lineJoin;
c.strokeStyle = opts.strokeStyle || settings.strokeStyle;
c.lineWidth = opts.lineWidth || settings.lineWidth;
c.moveTo(x1, y1);
c.lineTo(x2, y2);
c.stroke();
}
/*** END ***/
function startPoint(x, y) {
// If not previous point exists, make the first one.
if( !points.length ) points.push({x: x, y: y, type: settings.type, start: {x: x, y: y}});
var old = points[points.length-1],
start = old.start,
current = {
x : x,
y : y,
start : old.start || {x: x, y: y},
type : settings.type
}
// Just draws a circle
line(x,y,x,y);
if( old.type == 'line' ) {
line(old.x, old.y, x, y);
}
if( points.length > 1 && ((start && threshold(start.x, start.y, x, y)) || threshold(old.x, old.y, x, y, 2)) ) {
window.active = false;
points[points.length-1].type = '';
points[points.length-1].start = undefined;
return;
}
points.push(current);
}
function drawPoint(x,y) {
var capture = points[points.length-1];
switch(capture.type) {
case 'draw': {
line(capture.x, capture.y, x, y);
var current = {
x : x,
y : y,
start : capture.start,
type : capture.type
}
points.push(current);
break;
}
case 'sketch': {
line(capture.x, capture.y, x, y);
var current = {
x : x,
y : y,
start : capture.start,
type : capture.type
}
points.push(current);
for( var i = 0, len = points.length-1; i < len; i++ ) {
if( threshold(points[i].x, points[i].y, current.x, current.y, 40)) {
var x = points[i].x - current.x,
y = points[i].y - current.y;
line(points[i].x - x*0.2, points[i].y - y*0.2, current.x + x*0.2, current.y + y*0.2, {strokeStyle: 'rgba(0,0,0,0.4)', lineWidth: settings.lineWidth/2})
}
}
break;
}
}
}

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js/less-1.5.0.min.js vendored Normal file

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js/libs/two.min.js vendored Normal file
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d=this.renderer;(a!==d.width||b!==d.height)&&d.setSize(a,b);this.trigger(f.Events.update,this.frameCount,this.timeDelta);this.render()},this));return this},render:function(){this.renderer.render();return this.trigger(f.Events.render,this.frameCount)},add:function(a){var b=a;_.isArray(a)||(b=_.toArray(arguments));this.scene.add(b);return this},remove:function(a){var b=a;_.isArray(a)||(b=_.toArray(arguments));this.scene.remove(b);return this},clear:function(){_.each(this.scene.children,function(a){a.remove()});
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function(b){var c=b/k*a;b=d*m(c);c=h*j(c);return new f.Vector(b,c)},this),e=new f.Polygon(e,!0,!0);e.translation.set(b,c);this.scene.add(e);return e},makeCurve:function(a){var b=arguments.length,d=a;if(!_.isArray(a))for(var d=[],c=0;c<b;c+=2){var h=arguments[c];if(!_.isNumber(h))break;d.push(new f.Vector(h,arguments[c+1]))}var b=arguments[b-1],d=new f.Polygon(d,!(_.isBoolean(b)&&b),!0),b=d.getBoundingClientRect(),k=b.left+b.width/2,e=b.top+b.height/2;_.each(d.vertices,function(a){a.x-=k;a.y-=e});
d.translation.set(k,e);this.scene.add(d);return d},makePolygon:function(a){var b=arguments.length,d=a;if(!_.isArray(a))for(var d=[],c=0;c<b;c+=2){var h=arguments[c];if(!_.isNumber(h))break;d.push(new f.Vector(h,arguments[c+1]))}b=arguments[b-1];d=new f.Polygon(d,!(_.isBoolean(b)&&b));b=d.getBoundingClientRect();d.center().translation.set(b.left+b.width/2,b.top+b.height/2);this.scene.add(d);return d},makeGroup:function(a){var b=a;_.isArray(a)||(b=_.toArray(arguments));var d=new f.Group;this.scene.add(d);
d.add(b);return d},interpret:function(a){var b=a.tagName.toLowerCase();if(!(b in f.Utils.read))return null;a=f.Utils.read[b].call(this,a);this.add(a);return a}});(function(){_.each(f.Instances,function(a){a.playing&&a.update()});requestAnimationFrame(arguments.callee)})();"function"===typeof define&&define.amd?define(function(){return f}):"undefined"!=typeof module&&module.exports&&(module.exports=f)})();(function(){var p=Two.Vector=function(e,j){this.x=e||0;this.y=j||0};_.extend(p,{MakeGetterSetter:function(e,j,m){var c="_"+j;Object.defineProperty(e,j,{get:function(){return this[c]},set:function(b){this[c]=b;this.trigger(Two.Events.change,j)}});e[c]=m}});_.extend(p.prototype,Backbone.Events,{set:function(e,j){this.x=e;this.y=j;return this},copy:function(e){this.x=e.x;this.y=e.y;return this},clear:function(){this.y=this.x=0;return this},clone:function(){return new p(this.x,this.y)},add:function(e,
j){this.x=e.x+j.x;this.y=e.y+j.y;return this},addSelf:function(e){this.x+=e.x;this.y+=e.y;return this},sub:function(e,j){this.x=e.x-j.x;this.y=e.y-j.y;return this},subSelf:function(e){this.x-=e.x;this.y-=e.y;return this},multiplySelf:function(e){this.x*=e.x;this.y*=e.y;return this},multiplyScalar:function(e){this.x*=e;this.y*=e;return this},divideScalar:function(e){e?(this.x/=e,this.y/=e):this.set(0,0);return this},negate:function(){return this.multiplyScalar(-1)},dot:function(e){return this.x*e.x+
this.y*e.y},lengthSquared:function(){return this.x*this.x+this.y*this.y},length:function(){return Math.sqrt(this.lengthSquared())},normalize:function(){return this.divideScalar(this.length())},distanceTo:function(e){return Math.sqrt(this.distanceToSquared(e))},distanceToSquared:function(e){var j=this.x-e.x;e=this.y-e.y;return j*j+e*e},setLength:function(e){return this.normalize().multiplyScalar(e)},equals:function(e){return 1E-4>this.distanceTo(e)},lerp:function(e,j){return this.set((e.x-this.x)*
j+this.x,(e.y-this.y)*j+this.y)},isZero:function(){return 1E-4>this.length()}});var l={set:function(e,j){this._x=e;this._y=j;return this.trigger(Two.Events.change)},copy:function(e){this._x=e.x;this._y=e.y;return this.trigger(Two.Events.change)},clear:function(){this._y=this._x=0;return this.trigger(Two.Events.change)},clone:function(){return new p(this._x,this._y)},add:function(e,j){this._x=e.x+j.x;this._y=e.y+j.y;return this.trigger(Two.Events.change)},addSelf:function(e){this._x+=e.x;this._y+=
e.y;return this.trigger(Two.Events.change)},sub:function(e,j){this._x=e.x-j.x;this._y=e.y-j.y;return this.trigger(Two.Events.change)},subSelf:function(e){this._x-=e.x;this._y-=e.y;return this.trigger(Two.Events.change)},multiplySelf:function(e){this._x*=e.x;this._y*=e.y;return this.trigger(Two.Events.change)},multiplyScalar:function(e){this._x*=e;this._y*=e;return this.trigger(Two.Events.change)},divideScalar:function(e){return e?(this._x/=e,this._y/=e,this.trigger(Two.Events.change)):this.clear()},
negate:function(){return this.multiplyScalar(-1)},dot:function(e){return this._x*e.x+this._y*e.y},lengthSquared:function(){return this._x*this._x+this._y*this._y},length:function(){return Math.sqrt(this.lengthSquared())},normalize:function(){return this.divideScalar(this.length())},distanceTo:function(e){return Math.sqrt(this.distanceToSquared(e))},distanceToSquared:function(e){var j=this._x-e.x;e=this._y-e.y;return j*j+e*e},setLength:function(e){return this.normalize().multiplyScalar(e)},equals:function(e){return 1E-4>
this.distanceTo(e)},lerp:function(e,j){return this.set((e.x-this._x)*j+this._x,(e.y-this._y)*j+this._y)},isZero:function(){return 1E-4>this.length()}};Two.Vector.prototype.bind=Two.Vector.prototype.on=function(){this._bound||(Two.Vector.MakeGetterSetter(this,"x",this.x),Two.Vector.MakeGetterSetter(this,"y",this.y),_.extend(this,l),this._bound=!0);Backbone.Events.bind.apply(this,arguments);return this}})();(function(){_.range(6);var p=Math.cos,l=Math.sin,e=Math.tan,j=Two.Matrix=function(e,c,b,h,j,a){this.elements=new Two.Array(9);var k=e;_.isArray(k)||(k=_.toArray(arguments));this.identity().set(k)};_.extend(j,{Identity:[1,0,0,0,1,0,0,0,1],Multiply:function(e,c){if(3>=c.length){var b=c[0]||0,h=c[1]||0,j=c[2]||0;return{x:e[0]*b+e[1]*h+e[2]*j,y:e[3]*b+e[4]*h+e[5]*j,z:e[6]*b+e[7]*h+e[8]*j}}var b=e[0],h=e[1],j=e[2],a=e[3],k=e[4],q=e[5],s=e[6],f=e[7],r=e[8],l=c[0],p=c[1],u=c[2],y=c[3],n=c[4],t=c[5],d=c[6],
v=c[7],z=c[8];return[b*l+h*y+j*d,b*p+h*n+j*v,b*u+h*t+j*z,a*l+k*y+q*d,a*p+k*n+q*v,a*u+k*t+q*z,s*l+f*y+r*d,s*p+f*n+r*v,s*u+f*t+r*z]}});_.extend(j.prototype,Backbone.Events,{set:function(e,c,b,h,j,a){var k=e;_.isArray(k)||(k=_.toArray(arguments));_.each(k,function(a,b){_.isNumber(a)&&(this.elements[b]=a)},this);return this.trigger(Two.Events.change)},identity:function(){this.set(j.Identity);return this},multiply:function(e,c,b,h,j,a,k,q,s){var f=arguments,r=f.length;if(1>=r)return _.each(this.elements,
function(a,b){this.elements[b]=a*e},this),this.trigger(Two.Events.change);if(3>=r)return e=e||0,c=c||0,b=b||0,j=this.elements,{x:j[0]*e+j[1]*c+j[2]*b,y:j[3]*e+j[4]*c+j[5]*b,z:j[6]*e+j[7]*c+j[8]*b};r=this.elements;A0=r[0];A1=r[1];A2=r[2];A3=r[3];A4=r[4];A5=r[5];A6=r[6];A7=r[7];A8=r[8];B0=f[0];B1=f[1];B2=f[2];B3=f[3];B4=f[4];B5=f[5];B6=f[6];B7=f[7];B8=f[8];this.elements[0]=A0*B0+A1*B3+A2*B6;this.elements[1]=A0*B1+A1*B4+A2*B7;this.elements[2]=A0*B2+A1*B5+A2*B8;this.elements[3]=A3*B0+A4*B3+A5*B6;this.elements[4]=
A3*B1+A4*B4+A5*B7;this.elements[5]=A3*B2+A4*B5+A5*B8;this.elements[6]=A6*B0+A7*B3+A8*B6;this.elements[7]=A6*B1+A7*B4+A8*B7;this.elements[8]=A6*B2+A7*B5+A8*B8;return this.trigger(Two.Events.change)},inverse:function(e){var c=this.elements;e=e||new Two.Matrix;var b=c[0],h=c[1],j=c[2],a=c[3],k=c[4],q=c[5],s=c[6],f=c[7],c=c[8],r=c*k-q*f,l=-c*a+q*s,p=f*a-k*s,u=b*r+h*l+j*p;if(!u)return null;u=1/u;e.elements[0]=r*u;e.elements[1]=(-c*h+j*f)*u;e.elements[2]=(q*h-j*k)*u;e.elements[3]=l*u;e.elements[4]=(c*b-
j*s)*u;e.elements[5]=(-q*b+j*a)*u;e.elements[6]=p*u;e.elements[7]=(-f*b+h*s)*u;e.elements[8]=(k*b-h*a)*u;return e},scale:function(e,c){1>=arguments.length&&(c=e);return this.multiply(e,0,0,0,c,0,0,0,1)},rotate:function(e){var c=p(e);e=l(e);return this.multiply(c,-e,0,e,c,0,0,0,1)},translate:function(e,c){return this.multiply(1,0,e,0,1,c,0,0,1)},skewX:function(j){j=e(j);return this.multiply(1,j,0,0,1,0,0,0,1)},skewY:function(j){j=e(j);return this.multiply(1,0,0,j,1,0,0,0,1)},toString:function(){return this.toArray().join(" ")},
toArray:function(e){var c=this.elements,b=parseFloat(c[0].toFixed(3)),h=parseFloat(c[1].toFixed(3)),j=parseFloat(c[2].toFixed(3)),a=parseFloat(c[3].toFixed(3)),k=parseFloat(c[4].toFixed(3)),q=parseFloat(c[5].toFixed(3));if(e){e=parseFloat(c[6].toFixed(3));var s=parseFloat(c[7].toFixed(3)),c=parseFloat(c[8].toFixed(3));return[b,a,e,h,k,s,j,q,c]}return[b,a,h,k,j,q]},clone:function(){return new Two.Matrix(this.elements[0],this.elements[1],this.elements[2],this.elements[3],this.elements[4],this.elements[5],
this.elements[6],this.elements[7],this.elements[8])}})})();(function(){function p(c){var b={},e=c.id,l=c.translation,a=c.rotation,k=c.scale,q=c.stroke,s=c.linewidth,f=c.fill,r=c.opacity,p=c.visible,w=c.cap,u=c.join,y=c.miter,n=c.curved,t=c.closed,d=c.vertices;e&&(b.id=m.Identifier+e);l&&(_.isNumber(k)&&_.isNumber(a))&&(b.transform="matrix("+c._matrix.toString()+")");q&&(b.stroke=q);f&&(b.fill=f);r&&(b["stroke-opacity"]=b["fill-opacity"]=r);b.visibility=p?"visible":"hidden";w&&(b["stroke-linecap"]=w);u&&(b["stroke-linejoin"]=u);y&&(b["stroke-miterlimit"]=
y);s&&(b["stroke-width"]=s);d&&(b.d=j.toString(d,t,n));return b}var l=Two.Utils.getCurveFromPoints,e=Two.Utils.mod,j={version:1.1,ns:"http://www.w3.org/2000/svg",xlink:"http://www.w3.org/1999/xlink",createElement:function(c,b){var e=document.createElementNS(this.ns,c);"svg"===c&&(b=_.defaults(b||{},{version:this.version}));_.isObject(b)&&this.setAttributes(e,b);return e},setAttributes:function(c,b){_.each(b,function(b,c){this.setAttribute(c,b)},c);return this},removeAttributes:function(c,b){_.each(b,
function(b){this.removeAttribute(b)},c);return this},toString:function(c,b,h){var j=c.length,a=j-1;if(!h)return _.map(c,function(c,e){var f;f=(0>=e?"M":"L")+(" "+c.x.toFixed(3)+" "+c.y.toFixed(3));e>=a&&b&&(f+=" Z");return f}).join(" ");var k=l(c,b);return _.map(k,function(c,h){var f,m=b?e(h-1,j):Math.max(h-1,0),l=b?e(h+1,j):Math.min(h+1,a);f=k[m];var l=k[l],m=f.v.x.toFixed(3),p=f.v.y.toFixed(3),u=c.u.x.toFixed(3),y=c.u.y.toFixed(3),n=c.x.toFixed(3),t=c.y.toFixed(3);f=0>=h?"M "+n+" "+t:"C "+m+" "+
p+" "+u+" "+y+" "+n+" "+t;h>=a&&b&&(m=c.v.x.toFixed(3),p=c.v.y.toFixed(3),u=l.u.x.toFixed(3),y=l.u.y.toFixed(3),n=l.x.toFixed(3),t=l.y.toFixed(3),f=f+(" C "+m+" "+p+" "+u+" "+y+" "+n+" "+t)+" Z");return f}).join(" ")}},m=Two[Two.Types.svg]=function(){this.count=0;this.domElement=j.createElement("svg");this.elements=[];this.domElement.style.visibility="hidden";this.unveil=_.once(_.bind(function(){this.domElement.style.visibility="visible"},this))};_.extend(m,{Identifier:"two-",Utils:j});_.extend(m.prototype,
Backbone.Events,{setSize:function(c,b){this.width=c;this.height=b;j.setAttributes(this.domElement,{width:c,height:b});return this},add:function(c){var b=c,e=this.elements,m=this.domElement;_.isArray(c)||(b=_.map(arguments,function(a){return a}));_.each(b,function(a){var b;b=a instanceof Two.Group;if(_.isUndefined(a.id)){var c=this.count;this.count++;a.id=c}b?(b="g",_.isUndefined(a.parent)&&(a.parent=this,a.unbind(Two.Events.change).bind(Two.Events.change,_.bind(this.update,this))),a=p(a),delete a.stroke,
delete a.fill,delete a["fill-opacity"],delete a["stroke-opacity"],delete a["stroke-linecap"],delete a["stroke-linejoin"],delete a["stroke-miterlimit"],delete a["stroke-width"]):(b="path",a=p(a));a=j.createElement(b,a);m.appendChild(a);e.push(a)},this);return this},update:function(c,b,e,m,a){var k=this.elements,q=k[c];switch(b){case Two.Properties.hierarchy:_.each(e,function(a){q.appendChild(k[a])});break;case Two.Properties.demotion:_.each(e,function(a){q.removeChild(k[a])});break;default:a:{c=b;
switch(c){case "matrix":c="transform";e="matrix("+e.toString()+")";break;case "visible":c="visibility";e=e?"visible":"hidden";break;case "cap":c="stroke-linecap";break;case "join":c="stroke-linejoin";break;case "miter":c="stroke-miterlimit";break;case "linewidth":c="stroke-width";break;case "vertices":c="d";e=j.toString(e,m,a);break;case "opacity":j.setAttributes(q,{"stroke-opacity":e,"fill-opacity":e});break a}q.setAttribute(c,e)}}return this},render:function(){this.unveil();return this}})})();(function(){var p=Two.Utils.getCurveFromPoints,l=Two.Utils.mod,e=function(b){_.each(b,function(b,c){this[c]=b},this);this.children=[]};_.extend(e.prototype,{appendChild:function(b){var c=b.parent;_.isUndefined(c)||c.removeChild(b);this.children.push(b);b.parent=this;return this},removeChild:function(b){b=_.indexOf(this.children,b);return 0>b?this:this.children.splice(b,1)[0]},render:function(b){var c=this.matrix;b.save();b.transform(c[0],c[1],c[2],c[3],c[4],c[5]);_.each(this.children,function(c){c.render(b)});
b.restore();return this}});var j=function(b){_.each(b,function(b,c){this[c]=b},this)};_.extend(j.prototype,{render:function(b){var c=this.matrix,e=this.stroke,a=this.linewidth,k=this.fill,j=this.opacity,m=this.cap,f=this.join,r=this.miter,p=this.curved,w=this.closed,u=this.commands,y=u.length,n=y-1;if(!this.visible)return this;b.save();c&&b.transform(c[0],c[1],c[2],c[3],c[4],c[5]);k&&(b.fillStyle=k);e&&(b.strokeStyle=e);a&&(b.lineWidth=a);r&&(b.miterLimit=r);f&&(b.lineJoin=f);m&&(b.lineCap=m);_.isNumber(j)&&
(b.globalAlpha=j);b.beginPath();_.each(u,function(a,d){var f=a.x.toFixed(3),c=a.y.toFixed(3);if(p){var e=w?l(d-1,y):Math.max(d-1,0),h=w?l(d+1,y):Math.min(d+1,n),k=u[e],h=u[h],e=k.v.x.toFixed(3),k=k.v.y.toFixed(3),j=a.u.x.toFixed(3),q=a.u.y.toFixed(3);0>=d?b.moveTo(f,c):(b.bezierCurveTo(e,k,j,q,f,c),d>=n&&w&&(e=a.v.x.toFixed(3),k=a.v.y.toFixed(3),j=h.u.x.toFixed(3),q=h.u.y.toFixed(3),f=h.x.toFixed(3),c=h.y.toFixed(3),b.bezierCurveTo(e,k,j,q,f,c)))}else 0>=d?b.moveTo(f,c):b.lineTo(f,c)});w&&!p&&b.closePath();
b.fill();b.stroke();b.restore()}});var m={devicePixelRatio:this.devicePixelRatio||1,getBackingStoreRatio:function(b){return b.webkitBackingStorePixelRatio||b.mozBackingStorePixelRatio||b.msBackingStorePixelRatio||b.oBackingStorePixelRatio||b.backingStorePixelRatio||1},getRatio:function(b){return this.devicePixelRatio/this.getBackingStoreRatio(b)},toArray:function(b,c,e){return!c?_.map(b,function(a){return{x:a.x,y:a.y}}):p(b,e)}},c=Two[Two.Types.canvas]=function(){this.count=0;this.domElement=document.createElement("canvas");
this.ctx=this.domElement.getContext("2d");this.overdraw=!1;this.elements=[];this.stage=null};_.extend(c,{Group:e,Element:j,getStyles:function(b){var c={},e=b.id,a=b._matrix,k=b.stroke,j=b.linewidth,s=b.fill,f=b.opacity,l=b.visible,p=b.cap,w=b.join,u=b.miter,y=b.curved,n=b.closed;b=b.vertices;e&&(c.id=e);_.isObject(a)&&(c.matrix=a.toArray());k&&(c.stroke=k);s&&(c.fill=s);_.isNumber(f)&&(c.opacity=f);p&&(c.cap=p);w&&(c.join=w);u&&(c.miter=u);j&&(c.linewidth=j);b&&(c.commands=m.toArray(b,y,n));c.visible=
!!l;c.curved=!!y;c.closed=!!n;return c},setStyles:function(b,c,e,a,k){switch(c){case "matrix":c="matrix";e=e.toArray();break;case "vertices":c="commands",b.curved=k,b.closed=a,e=m.toArray(e,b.curved,b.closed)}b[c]=e},Utils:m});_.extend(c.prototype,Backbone.Events,{setSize:function(b,c,e){this.width=b;this.height=c;this.ratio=_.isUndefined(e)?m.getRatio(this.ctx):e;this.domElement.width=b*this.ratio;this.domElement.height=c*this.ratio;_.extend(this.domElement.style,{width:b+"px",height:c+"px"});return this},
add:function(b){constructor=Object.getPrototypeOf(this).constructor;var c=b,e=this.elements,a=constructor.Group,k=constructor.Element,j=constructor.getStyles;_.isArray(b)||(c=_.map(arguments,function(a){return a}));_.each(c,function(b){var c;c=b instanceof Two.Group;var h=_.isNull(this.stage);if(_.isUndefined(b.id)){var m=this.count;this.count++;b.id=m}c?(c=j.call(this,b),delete c.stroke,delete c.fill,delete c.opacity,delete c.cap,delete c.join,delete c.miter,delete c.linewidth,c=new a(c),h&&(this.stage=
c,this.stage.object=b,b.parent=this,b.unbind(Two.Events.change).bind(Two.Events.change,_.bind(this.update,this)))):c=new k(j.call(this,b));e.push(c);h||this.stage.appendChild(c)},this);return this},update:function(b,c,e,a,k,j){var m=Object.getPrototypeOf(this).constructor,f=this.elements,l=f[b];switch(c){case Two.Properties.hierarchy:_.each(e,function(a){l.appendChild(f[a])});break;case Two.Properties.demotion:_.each(e,function(a){l.removeChild(f[a]);this.elements[a]=null},this);break;default:m.setStyles.call(this,
l,c,e,a,k,j)}return this},render:function(){if(_.isNull(this.stage))return this;1!==this.ratio&&(this.ctx.save(),this.ctx.scale(this.ratio,this.ratio));this.overdraw||this.ctx.clearRect(0,0,this.width,this.height);this.stage.render(this.ctx);1!==this.ratio&&this.ctx.restore();return this}})})();(function(){function p(a,b){var c=Math.min(a.top,b.top),e=Math.min(a.left,b.left),f=Math.max(a.right,b.right),h=Math.max(a.bottom,b.bottom);return{top:c,left:e,right:f,bottom:h,width:f-e,height:h-c,centroid:{x:-e,y:-c}}}var l=Two[Two.Types.canvas],e=Two.Matrix.Multiply,j=Two[Two.Types.canvas].Utils.toArray,m=Two.Utils.mod,c=function(a){l.Group.call(this,a)};_.extend(c.prototype,l.Group.prototype,{appendChild:function(){l.Group.prototype.appendChild.apply(this,arguments);this.updateMatrix();return this},
updateTexture:function(a){_.each(this.children,function(b){b.updateTexture(a)});return this},updateMatrix:function(a){var b=a&&a._matrix||this.parent&&this.parent._matrix;a=a&&a._scale||this.parent&&this.parent._scale;if(!b)return this;this._matrix=e(this.matrix,b);this._scale=this.scale*a;_.each(this.children,function(a){a.updateMatrix(this)},this);return this},render:function(a,b){_.each(this.children,function(c){c.render(a,b)})}});var b=function(a){l.Element.call(this,a)};_.extend(b.prototype,
l.Element.prototype,{updateMatrix:function(a){var b=a&&a._matrix||this.parent&&this.parent._matrix;a=a&&a._scale||this.parent&&this.parent._scale;if(!b)return this;this._matrix=e(this.matrix,b);this._scale=this.scale*a;return this},updateTexture:function(a){h.updateTexture(a,this);return this},render:function(a,b){if(!this.visible||!this.opacity||!this.buffer)return this;a.bindBuffer(a.ARRAY_BUFFER,this.textureCoordsBuffer);a.vertexAttribPointer(b.textureCoords,2,a.FLOAT,!1,0,0);a.bindTexture(a.TEXTURE_2D,
this.texture);a.uniformMatrix3fv(b.matrix,!1,this._matrix);a.bindBuffer(a.ARRAY_BUFFER,this.buffer);a.vertexAttribPointer(b.position,2,a.FLOAT,!1,0,0);a.drawArrays(a.TRIANGLES,0,6);return this}});var h={canvas:document.createElement("canvas"),uv:new Two.Array([0,0,1,0,0,1,0,1,1,0,1,1]),getBoundingClientRect:function(a,b,c){var e=Infinity,f=-Infinity,h=Infinity,j=-Infinity;_.each(a,function(a){var b=a.x,k=a.y,m;h=Math.min(k,h);e=Math.min(b,e);f=Math.max(b,f);j=Math.max(k,j);c&&(b=a.u.x,k=a.u.y,m=a.v.x,
a=a.v.y,h=Math.min(k,a,h),e=Math.min(b,m,e),f=Math.max(b,m,f),j=Math.max(k,a,j))});_.isNumber(b)&&(h-=b,e-=b,f+=b,j+=b);return{top:h,left:e,right:f,bottom:j,width:f-e,height:j-h,centroid:{x:-e,y:-h}}},getTriangles:function(a){var b=a.top,c=a.left,e=a.right;a=a.bottom;return new Two.Array([c,b,e,b,c,a,c,a,e,b,e,a])},updateCanvas:function(a){var b=a.commands,c=this.canvas,e=this.ctx,f=a._scale,h=a.stroke,j=a.linewidth*f,l=a.fill,p=a.opacity,x=a.cap,n=a.join,t=a.miter,d=a.curved,v=a.closed,z=b.length,
J=z-1;c.width=Math.max(Math.ceil(a.rect.width*f),1);c.height=Math.max(Math.ceil(a.rect.height*f),1);a=a.rect.centroid;var C=a.x*f,D=a.y*f;e.clearRect(0,0,c.width,c.height);l&&(e.fillStyle=l);h&&(e.strokeStyle=h);j&&(e.lineWidth=j);t&&(e.miterLimit=t);n&&(e.lineJoin=n);x&&(e.lineCap=x);_.isNumber(p)&&(e.globalAlpha=p);e.beginPath();_.each(b,function(a,c){var h=(a.x*f+C).toFixed(3),j=(a.y*f+D).toFixed(3);if(d){var l=v?m(c-1,z):Math.max(c-1,0),q=v?m(c+1,z):Math.min(c+1,J),n=b[l],q=b[q],l=(n.v.x*f+C).toFixed(3),
n=(n.v.y*f+D).toFixed(3),p=(a.u.x*f+C).toFixed(3),g=(a.u.y*f+D).toFixed(3);0>=c?e.moveTo(h,j):(e.bezierCurveTo(l,n,p,g,h,j),c>=J&&v&&(l=(a.v.x*f+C).toFixed(3),n=(a.v.y*f+D).toFixed(3),p=(q.u.x*f+C).toFixed(3),g=(q.u.y*f+D).toFixed(3),h=(q.x*f+C).toFixed(3),j=(q.y*f+D).toFixed(3),e.bezierCurveTo(l,n,p,g,h,j)))}else 0>=c?e.moveTo(h,j):e.lineTo(h,j)});v&&!d&&e.closePath();e.fill();e.stroke()},updateTexture:function(a,b){this.updateCanvas(b);b.texture&&a.deleteTexture(b.texture);a.bindBuffer(a.ARRAY_BUFFER,
b.textureCoordsBuffer);b.texture=a.createTexture();a.bindTexture(a.TEXTURE_2D,b.texture);a.texParameteri(a.TEXTURE_2D,a.TEXTURE_WRAP_S,a.CLAMP_TO_EDGE);a.texParameteri(a.TEXTURE_2D,a.TEXTURE_WRAP_T,a.CLAMP_TO_EDGE);a.texParameteri(a.TEXTURE_2D,a.TEXTURE_MIN_FILTER,a.LINEAR);0>=this.canvas.width||0>=this.canvas.height||a.texImage2D(a.TEXTURE_2D,0,a.RGBA,a.RGBA,a.UNSIGNED_BYTE,this.canvas)},updateBuffer:function(a,b,c){_.isObject(b.buffer)&&a.deleteBuffer(b.buffer);b.buffer=a.createBuffer();a.bindBuffer(a.ARRAY_BUFFER,
b.buffer);a.enableVertexAttribArray(c.position);a.bufferData(a.ARRAY_BUFFER,b.triangles,a.STATIC_DRAW);_.isObject(b.textureCoordsBuffer)&&a.deleteBuffer(b.textureCoordsBuffer);b.textureCoordsBuffer=a.createBuffer();a.bindBuffer(a.ARRAY_BUFFER,b.textureCoordsBuffer);a.enableVertexAttribArray(c.textureCoords);a.bufferData(a.ARRAY_BUFFER,this.uv,a.STATIC_DRAW)},program:{create:function(a,b){var c=a.createProgram();_.each(b,function(b){a.attachShader(c,b)});a.linkProgram(c);if(!a.getProgramParameter(c,
a.LINK_STATUS))throw error=a.getProgramInfoLog(c),a.deleteProgram(c),new Two.Utils.Error("unable to link program: "+error);return c}},shaders:{create:function(a,b,c){c=a.createShader(a[c]);a.shaderSource(c,b);a.compileShader(c);if(!a.getShaderParameter(c,a.COMPILE_STATUS))throw b=a.getShaderInfoLog(c),a.deleteShader(c),new Two.Utils.Error("unable to compile shader "+c+": "+b);return c},types:{vertex:"VERTEX_SHADER",fragment:"FRAGMENT_SHADER"},vertex:"attribute vec2 a_position;\nattribute vec2 a_textureCoords;\n\nuniform mat3 u_matrix;\nuniform vec2 u_resolution;\n\nvarying vec2 v_textureCoords;\n\nvoid main() {\n vec2 projected = (u_matrix * vec3(a_position, 1)).xy;\n vec2 normal = projected / u_resolution;\n vec2 clipspace = (normal * 2.0) - 1.0;\n\n gl_Position = vec4(clipspace * vec2(1.0, -1.0), 0.0, 1.0);\n v_textureCoords = a_textureCoords;\n}",
fragment:"precision mediump float;\n\nuniform sampler2D u_image;\nvarying vec2 v_textureCoords;\n\nvoid main() {\n gl_FragColor = texture2D(u_image, v_textureCoords);\n}"}};h.ctx=h.canvas.getContext("2d");var x=Two[Two.Types.webgl]=function(a){this.count=0;this.domElement=document.createElement("canvas");this.elements=[];this.stage=null;a=_.defaults(a||{},{antialias:!1,alpha:!0,premultipliedAlpha:!0,stencil:!0,preserveDrawingBuffer:!1});a=this.ctx=this.domElement.getContext("webgl",a)||this.domElement.getContext("experimental-webgl",
a);if(!this.ctx)throw new Two.Utils.Error("unable to create a webgl context. Try using another renderer.");var b=h.shaders.create(a,h.shaders.vertex,h.shaders.types.vertex),c=h.shaders.create(a,h.shaders.fragment,h.shaders.types.fragment);this.program=h.program.create(a,[b,c]);a.useProgram(this.program);this.program.position=a.getAttribLocation(this.program,"a_position");this.program.matrix=a.getUniformLocation(this.program,"u_matrix");this.program.textureCoords=a.getAttribLocation(this.program,"a_textureCoords");
a.disable(a.DEPTH_TEST);a.enable(a.BLEND);a.blendEquationSeparate(a.FUNC_ADD,a.FUNC_ADD);a.blendFuncSeparate(a.SRC_ALPHA,a.ONE_MINUS_SRC_ALPHA,a.ONE,a.ONE_MINUS_SRC_ALPHA)};_.extend(x,{Group:c,Element:b,getStyles:function(a){var c={},e=a.id,m=a._matrix,f=a.stroke,l=a.linewidth,p=a.fill,x=a.opacity,u=a.visible,y=a.cap,n=a.join,t=a.miter,d=a.curved,v=a.closed,z=a.vertices;e&&(c.id=e);_.isObject(m)&&(c.matrix=c._matrix=m.toArray(!0),c.scale=c._scale=1);f&&(c.stroke=f);p&&(c.fill=p);_.isNumber(x)&&(c.opacity=
x);y&&(c.cap=y);n&&(c.join=n);t&&(c.miter=t);l&&(c.linewidth=l);z&&(c.vertices=j(z,d,v),c.commands=c.vertices,c.rect=h.getBoundingClientRect(c.commands,c.linewidth,c.curved),c.triangles=h.getTriangles(c.rect));c.visible=!!u;c.curved=!!d;c.closed=!!v;a instanceof Two.Polygon&&(h.updateBuffer(this.ctx,c,this.program),b.prototype.updateTexture.call(c,this.ctx));return c},setStyles:function(a,b,c,e,f,m){var l=!1;/matrix/.test(b)?(a[b]=c.toArray(!0),_.isNumber(e)&&(l=a.scale!==e,a.scale=e),a.updateMatrix()):
/(stroke|fill|opacity|cap|join|miter|linewidth)/.test(b)?(a[b]=c,a.rect=p(h.getBoundingClientRect(a.commands,a.linewidth,a.curved),a.rect),a.triangles=h.getTriangles(a.rect),h.updateBuffer(this.ctx,a,this.program),l=!0):"vertices"===b?(_.isUndefined(e)||(a.closed=e),_.isUndefined(f)||(a.curved=f),m?a.commands=j(c,a.curved,a.closed):(a.vertices=j(c,a.curved,a.closed),a.commands=a.vertices),a.rect=p(h.getBoundingClientRect(a.vertices,a.linewidth,a.curved),a.rect),a.triangles=h.getTriangles(a.rect),
h.updateBuffer(this.ctx,a,this.program),l=!0):a[b]=c;l&&a.updateTexture(this.ctx)}});_.extend(x.prototype,Backbone.Events,l.prototype,{setSize:function(a,b){l.prototype.setSize.apply(this,arguments);this.ratio=1;this.domElement.width=a;this.domElement.height=b;this.ctx.viewport(0,0,a,b);var c=this.ctx.getUniformLocation(this.program,"u_resolution");this.ctx.uniform2f(c,a,b);return this},render:function(){if(_.isNull(this.stage))return this;this.stage.render(this.ctx,this.program);return this}})})();(function(){var p=Two.Shape=function(l){this._matrix=new Two.Matrix;var e=_.debounce(_.bind(function(){var e=this._matrix.identity().translate(this.translation.x,this.translation.y).scale(this.scale).rotate(this.rotation);this.trigger(Two.Events.change,this.id,"matrix",e,this.scale)},this),0);this._rotation=0;Object.defineProperty(this,"rotation",{get:function(){return this._rotation},set:function(j){this._rotation=j;e()}});this._scale="scale";Object.defineProperty(this,"scale",{get:function(){return this._scale},
set:function(j){this._scale=j;e()}});this.translation=new Two.Vector;this.rotation=0;this.scale=1;this.translation.bind(Two.Events.change,e);if(l)return this;p.MakeGetterSetter(this,p.Properties);this.fill="#fff";this.stroke="#000";this.opacity=this.linewidth=1;this.visible=!0;this.join=this.cap="round";this.miter=1};_.extend(p,{Properties:"fill stroke linewidth opacity visible cap join miter".split(" "),MakeGetterSetter:function(l,e){_.isArray(e)||(e=[e]);_.each(e,function(e){var m="_"+e;Object.defineProperty(l,
e,{get:function(){return this[m]},set:function(c){this[m]=c;this.trigger(Two.Events.change,this.id,e,c,this)}})})}});_.extend(p.prototype,Backbone.Events,{addTo:function(l){l.add(this);return this},noFill:function(){this.fill="transparent";return this},noStroke:function(){this.stroke="transparent";return this},clone:function(){var l=new p;l.translation.copy(this.translation);_.each(p.Properties,function(e){l[e]=this[e]},this);return this}})})();(function(){var p=Two.Group=function(){Two.Shape.call(this,!0);delete this.stroke;delete this.fill;delete this.linewidth;delete this.opacity;delete this.cap;delete this.join;delete this.miter;p.MakeGetterSetter(this,Two.Shape.Properties);this.children={}};_.extend(p,{MakeGetterSetter:function(l,e){_.isArray(e)||(e=[e]);_.each(e,function(e){var m="_"+e;Object.defineProperty(l,e,{get:function(){return this[m]},set:function(c){this[m]=c;_.each(this.children,function(b){b[e]=c})}})})}});_.extend(p.prototype,
Two.Shape.prototype,{clone:function(l){l=l||this.parent;var e=_.map(this.children,function(e){return e.clone(l)}),j=new p;l.add(j);j.add(e);j.translation.copy(this.translation);j.rotation=this.rotation;j.scale=this.scale;return j},corner:function(){var l=this.getBoundingClientRect(!0),e={x:l.left,y:l.top};_.each(this.children,function(j){j.translation.subSelf(e)});return this},center:function(){var l=this.getBoundingClientRect(!0);l.centroid={x:l.left+l.width/2,y:l.top+l.height/2};_.each(this.children,
function(e){e.translation.subSelf(l.centroid)});return this},add:function(l){var e=l,j=this.children,m=this.parent,c=[];_.isArray(l)||(e=_.toArray(arguments));var b=_.bind(function(b,c,a,e,j,m){this.trigger(Two.Events.change,b,c,a,e,j,m)},this);_.each(e,function(e){if(e){var l=e.id,a=e.parent;_.isUndefined(l)&&(m.add(e),l=e.id);_.isUndefined(j[l])&&(a&&delete a.children[l],j[l]=e,e.parent=this,e.unbind(Two.Events.change).bind(Two.Events.change,b),c.push(l))}},this);0<c.length&&this.trigger(Two.Events.change,
this.id,Two.Properties.hierarchy,c);return this},remove:function(l){var e=l,j=this.children,m=this.parent,c=[];if(0>=arguments.length&&m)return m.remove(this),this;_.isArray(l)||(e=_.toArray(arguments));_.each(e,function(b){var e=b.id;e in j&&(delete j[e],delete b.parent,b.unbind(Two.Events.change),c.push(e))});0<c.length&&this.trigger(Two.Events.change,this.id,Two.Properties.demotion,c);return this},getBoundingClientRect:function(l){var e=Infinity,j=-Infinity,m=Infinity,c=-Infinity;_.each(this.children,
function(b){b=b.getBoundingClientRect(!0);m&&(e&&j&&c)&&(m=Math.min(b.top,m),e=Math.min(b.left,e),j=Math.max(b.right,j),c=Math.max(b.bottom,c))},this);var b=l?this._matrix:Two.Utils.getComputedMatrix(this);l=b.multiply(e,m,1);b=b.multiply(j,c,1);return{top:l.y,left:l.x,right:b.x,bottom:b.y,width:b.x-l.x,height:b.y-l.y}},noFill:function(){_.each(this.children,function(l){l.noFill()});return this},noStroke:function(){_.each(this.children,function(l){l.noStroke()});return this}})})();(function(){var p=Math.min,l=Math.max,e=Math.round,j=Two.Polygon=function(j,c,b){Two.Shape.call(this);c=!!c;b=!!b;var h=0,x=1,a=!1,k=!1,q,s=[],f=_.debounce(_.bind(function(){var f,j;if(a||k){f=q.length;j=f-1;f=e(h*j);j=e(x*j);for(s.length=0;f<j+1;f++)s.push(q[f])}this.trigger(Two.Events.change,this.id,"vertices",s,c,b,a);k=a=!1},this),0);Object.defineProperty(this,"closed",{get:function(){return c},set:function(a){c=!!a;f()}});Object.defineProperty(this,"curved",{get:function(){return b},set:function(a){b=
!!a;f()}});Object.defineProperty(this,"beginning",{get:function(){return h},set:function(b){h=p(l(b,0),1);a=!0;f()}});Object.defineProperty(this,"ending",{get:function(){return x},set:function(b){x=p(l(b,0),1);a=!0;f()}});Object.defineProperty(this,"vertices",{get:function(){return q},set:function(a){var b=_.bind(function(a){_.each(a,function(a){a.bind(Two.Events.change,f)},this);k=!0;f()},this),c=_.bind(function(a){_.each(a,function(a){a.unbind(Two.Events.change,f)},this);k=!0;f()},this);q&&q.unbind();
q=new Two.Utils.Collection(a.slice(0));q.bind(Two.Events.insert,b);q.bind(Two.Events.remove,c);k=!0;b(q)}});this.vertices=j};_.extend(j.prototype,Two.Shape.prototype,{clone:function(){var e=_.map(this.vertices,function(b){return new Two.Vector(b.x,b.y)}),c=new j(e,this.closed,this.curved);_.each(Two.Shape.Properties,function(b){c[b]=this[b]},this);c.translation.copy(this.translation);c.rotation=this.rotation;c.scale=this.scale;return c},corner:function(){var e=this.getBoundingClientRect(!0),c={x:e.left,
y:e.top};_.each(this.vertices,function(b){b.subSelf(c)});return this},center:function(){var e=this.getBoundingClientRect(!0);e.centroid={x:e.left+e.width/2,y:e.top+e.height/2};_.each(this.vertices,function(c){c.subSelf(e.centroid)});return this},remove:function(){if(!this.parent)return this;this.parent.remove(this);return this},getBoundingClientRect:function(e){var c=this.linewidth,b=Infinity,h=-Infinity,j=Infinity,a=-Infinity;_.each(this.vertices,function(c){var e=c.x;c=c.y;j=Math.min(c,j);b=Math.min(e,
b);h=Math.max(e,h);a=Math.max(c,a)});j-=c;b-=c;h+=c;a+=c;c=e?this._matrix:Two.Utils.getComputedMatrix(this);e=c.multiply(b,j,1);c=c.multiply(h,a,1);return{top:e.y,left:e.x,right:c.x,bottom:c.y,width:c.x-e.x,height:c.y-e.y}}})})();

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"use strict";
$(document).ready(function() {
window.c = $('canvas')[0].getContext('2d');
window.settings = {
lineWidth : 5,
strokeStyle : 'black',
type: 'sketch',
lineCap: 'round',
lineJoin: 'round'
};
window.points = [];
window.$c = $('canvas');
sizeAndPos();
$(window).resize(sizeAndPos);
$c.mousedown(function(e) {
var xy = relative(e.pageX, e.pageY);
startPoint(xy.x, xy.y);
window.active = true;
}).mousemove(function(e) {
if (!window.active || settings.type == 'line') return;
var xy = relative(e.pageX, e.pageY);
drawPoint(xy.x, xy.y);
}).mouseup(function() {
window.active = false;
})
})