|
|
|
|
|
function QR8bitByte(a){this.mode=QRMode.MODE_8BIT_BYTE,this.data=a}function QRCode(a,b){this.typeNumber=a,this.errorCorrectLevel=b,this.modules=null,this.moduleCount=0,this.dataCache=null,this.dataList=new Array()}function QRPolynomial(a,b){var c,d;if(void 0==a.length){throw new Error(a.length+"/"+b)}for(c=0;c<a.length&&0==a[c];){c++}for(this.num=new Array(a.length-c+b),d=0;d<a.length-c;d++){this.num[d]=a[d+c]}}function QRRSBlock(a,b){this.totalCount=a,this.dataCount=b}function QRBitBuffer(){this.buffer=new Array(),this.length=0}var QRMode,QRErrorCorrectLevel,QRMaskPattern,QRUtil,QRMath,i;for(function(a){a.fn.qrcode=function(b){var c,d;return"string"==typeof b&&(b={text:b}),b=a.extend({},{render:"canvas",width:256,height:256,imgWidth:b.width/2.5,imgHeight:b.height/2.5,typeNumber:-1,correctLevel:QRErrorCorrectLevel.H,background:"#ffffff",foreground:"#000000"},b),c=function(){var c,d,e,f,g,h,i,j,k,a=new QRCode(b.typeNumber,b.correctLevel);for(a.addData(b.text),a.make(),c=document.createElement("canvas"),c.width=b.width,c.height=b.height,d=c.getContext("2d"),b.src&&(e=new Image(),e.src=b.src,e.onload=function(){d.drawImage(e,(b.width-b.imgWidth)/2,(b.height-b.imgHeight)/2,b.imgWidth,b.imgHeight)}),f=b.width/a.getModuleCount(),g=b.height/a.getModuleCount(),h=0;h<a.getModuleCount();h++){for(i=0;i<a.getModuleCount();i++){d.fillStyle=a.isDark(h,i)?b.foreground:b.background,j=Math.ceil((i+1)*f)-Math.floor(i*f),k=Math.ceil((h+1)*f)-Math.floor(h*f),d.fillRect(Math.round(i*f),Math.round(h*g),j,k)}}return c},d=function(){var d,e,f,g,h,i,c=new QRCode(b.typeNumber,b.correctLevel);for(c.addData(b.text),c.make(),d=a("<table></table>").css("width",b.width+"px").css("height",b.height+"px").css("border","0px").css("border-collapse","collapse").css("background-color",b.background),e=b.width/c.getModuleCount(),f=b.height/c.getModuleCount(),g=0;g<c.getModuleCount();g++){for(h=a("<tr></tr>").css("height",f+"px").appendTo(d),i=0;i<c.getModuleCount();i++){a("<td></td>").css("width",e+"px").css("background-color",c.isDark(g,i)?b.foreground:b.background).appendTo(h)}}return d},this.each(function(){var e="canvas"==b.render?c():d();a(e).appendTo(this)})}}(jQuery),QR8bitByte.prototype={getLength:function(){return this.data.length},write:function(a){for(var b=0;b<this.data.length;b++){a.put(this.data.charCodeAt(b),8)}}},QRCode.prototype={addData:function(a){var b=new QR8bitByte(a);this.dataList.push(b),this.dataCache=null},isDark:function(a,b){if(0>a||this.moduleCount<=a||0>b||this.moduleCount<=b){throw new Error(a+","+b)}return this.modules[a][b]},getModuleCount:function(){return this.moduleCount},make:function(){var a,b,c,d,e,f;if(this.typeNumber<1){for(a=1,a=1;40>a;a++){for(b=QRRSBlock.getRSBlocks(a,this.errorCorrectLevel),c=new QRBitBuffer(),d=0,e=0;e<b.length;e++){d+=b[e].dataCount}for(e=0;e<this.dataList.length;e++){f=this.dataList[e],c.put(f.mode,4),c.put(f.getLength(),QRUtil.getLengthInBits(f.mode,a)),f.write(c)}if(c.getLengthInBits()<=8*d){break}}this.typeNumber=a}this.makeImpl(!1,this.getBestMaskPattern())},makeImpl:function(a,b){var c,d;for(this.moduleCount=4*this.typeNumber+17,this.modules=new Array(this.moduleCount),c=0;c<this.moduleCount;c++){for(this.modules[c]=new Array(this.moduleCount),d=0;d<this.moduleCount;d++){this.modules[c][d]=null}}this.setupPositionProbePattern(0,0),this.setupPositionProbePattern(this.moduleCount-7,0),this.setupPositionProbePattern(0,this.moduleCount-7),this.setupPositionAdjustPattern(),this.setupTimingPattern(),this.setupTypeInfo(a,b),this.typeNumber>=7&&this.setupTypeNumber(a),null==this.dataCache&&(this.dataCache=QRCode.createData(this.typeNumber,this.errorCorrectLevel,this.dataList)),this.mapData(this.dataCache,b)},setupPositionProbePattern:function(a,b){var c,d;for(c=-1;7>=c;c++){if(!(-1>=a+c||this.moduleCount<=a+c)){for(d=-1;7>=d;d++){-1>=b+d||this.moduleCount<=b+d||(this.modules[a+c][b+d]=c>=0&&6>=c&&(0==d||6==d)||d>=0&&6>=d&&(0==c||6==c)||c>=2&&4>=c&&d>=2&&4>=d?!0:!1)}}}},getBestMaskPattern:function(){var c,d,a=0,b=0;for(c=0;8>c;c++){this.makeImpl(!0,c),d=QRUtil.getLostPoint(this),(0==c||a>d)&&(a=d,b=
|
