把链接生成二维码 二维码中间带有logo
在工程中引入三个文件jquery.qrcode.js、qrcode.js、utf.js。其中utf.js文件是防止链接中的参数出现中文乱码现象
jquery.qrcode.js文件
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,
//这里是图片的高度和宽度
imgWidth:b.width/3,
imgHeight:b.height/3,
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(utf16to8(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);
//这里的utf16to8(b.text)是对Text中的字符串进行转码，让其支持中文
for(c.addData(utf16to8(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=c)}return b},createMovieClip:function(a,b,c){var f,g,h,i,j,d=a.createEmptyMovieClip(b,c),e=1;for(this.make(),f=0;f<this.modules.length;f++){for(g=f*e,h=0;h<this.modules[f].length;h++){i=h*e,j=this.modules[f][h],j&&(d.beginFill(0,100),d.moveTo(i,g),d.lineTo(i+e,g),d.lineTo(i+e,g+e),d.lineTo(i,g+e),d.endFill())}}return d},setupTimingPattern:function(){var a,b;for(a=8;a<this.moduleCount-8;a++){null==this.modules[a][6]&&(this.modules[a][6]=0==a%2)}for(b=8;b<this.moduleCount-8;b++){null==this.modules[6][b]&&(this.modules[6][b]=0==b%2)}},setupPositionAdjustPattern:function(){var b,c,d,e,f,g,a=QRUtil.getPatternPosition(this.typeNumber);for(b=0;b<a.length;b++){for(c=0;c<a.length;c++){if(d=a[b],e=a[c],null==this.modules[d][e]){for(f=-2;2>=f;f++){for(g=-2;2>=g;g++){this.modules[d+f][e+g]=-2==f||2==f||-2==g||2==g||0==f&&0==g?!0:!1}}}}}},setupTypeNumber:function(a){var c,d,b=QRUtil.getBCHTypeNumber(this.typeNumber);for(c=0;18>c;c++){d=!a&&1==(1&b>>c),this.modules[Math.floor(c/3)][c%3+this.moduleCount-8-3]=d}for(c=0;18>c;c++){d=!a&&1==(1&b>>c),this.modules[c%3+this.moduleCount-8-3][Math.floor(c/3)]=d}},setupTypeInfo:function(a,b){var e,f,c=this.errorCorrectLevel<<3|b,d=QRUtil.getBCHTypeInfo(c);for(e=0;15>e;e++){f=!a&&1==(1&d>>e),6>e?this.modules[e][8]=f:8>e?this.modules[e+1][8]=f:this.modules[this.moduleCount-15+e][8]=f}for(e=0;15>e;e++){f=!a&&1==(1&d>>e),8>e?this.modules[8][this.moduleCount-e-1]=f:9>e?this.modules[8][15-e-1+1]=f:this.modules[8][15-e-1]=f}this.modules[this.moduleCount-8][8]=!a},mapData:function(a,b){var g,h,i,j,c=-1,d=this.moduleCount-1,e=7,f=0;for(g=this.moduleCount-1;g>0;g-=2){for(6==g&&g--;;){for(h=0;2>h;h++){null==this.modules[d][g-h]&&(i=!1,f<a.length&&(i=1==(1&a[f]>>>e)),j=QRUtil.getMask(b,d,g-h),j&&(i=!i),this.modules[d][g-h]=i,e--,-1==e&&(f++,e=7))}if(d+=c,0>d||this.moduleCount<=d){d-=c,c=-c;break}}}}},QRCode.PAD0=236,QRCode.PAD1=17,QRCode.createData=function(a,b,c){var f,g,h,d=QRRSBlock.getRSBlocks(a,b),e=new QRBitBuffer();for(f=0;f<c.length;f++){g=c[f],e.put(g.mode,4),e.put(g.getLength(),QRUtil.getLengthInBits(g.mode,a)),g.write(e)}for(h=0,f=0;f<d.length;f++){h+=d[f].dataCount}if(e.getLengthInBits()>8*h){throw new Error("code length overflow. ("+e.getLengthInBits()+">"+8*h+")")}for(e.getLengthInBits()+4<=8*h&&e.put(0,4);0!=e.getLengthInBits()%8;){e.putBit(!1)}for(;;){if(e.getLengthInBits()>=8*h){break}if(e.put(QRCode.PAD0,8),e.getLengthInBits()>=8*h){break}e.put(QRCode.PAD1,8)}return QRCode.createBytes(e,d)},QRCode.createBytes=function(a,b){var h,i,j,k,l,m,n,o,p,q,r,c=0,d=0,e=0,f=new Array(b.length),g=new Array(b.length);for(h=0;h<b.length;h++){for(i=b[h].dataCount,j=b[h].totalCount-i,d=Math.max(d,i),e=Math.max(e,j),f[h]=new Array(i),k=0;k<f[h].length;k++){f[h][k]=255&a.buffer[k+c]}for(c+=i,l=QRUtil.getErrorCorrectPolynomial(j),m=new QRPolynomial(f[h],l.getLength()-1),n=m.mod(l),g[h]=new Array(l.getLength()-1),k=0;k<g[h].length;k++){o=k+n.getLength()-g[h].length,g[h][k]=o>=0?n.get(o):0}}for(p=0,k=0;k<b.length;k++){p+=b[k].totalCount}for(q=new Array(p),r=0,k=0;d>k;k++){for(h=0;h<b.length;h++){k<f[h].length&&(q[r++]=f[h][k])}}for(k=0;e>k;k++){for(h=0;h<b.length;h++){k<g[h].length&&(q[r++]=g[h][k])}}return q},QRMode={MODE_NUMBER:1,MODE_ALPHA_NUM:2,MODE_8BIT_BYTE:4,MODE_KANJI:8},QRErrorCorrectLevel={L:1,M:0,Q:3,H:2},QRMaskPattern={PATTERN000:0,PATTERN001:1,PATTERN010:2,PATTERN011:3,PATTERN100:4,PATTERN101:5,PATTERN110:6,PATTERN111:7},QRUtil={PATTERN_POSITION_TABLE:[[],[6,18],[6,22],[6,26],[6,30],[6,34],[6,22,38],[6,24,42],[6,26,46],[6,28,50],[6,30,54],[6,32,58],[6,34,62],[6,26,46,66],[6,26,48,70],[6,26,50,74],[6,30,54,78],[6,30,56,82],[6,30,58,86],[6,34,62,90],[6,28,50,72,94],[6,26,50,74,98],[6,30,54,78,102],[6,28,54,80,106],[6,32,58,84,110],[6,30,58,86,114],[6,34,62,90,118],[6,26,50,74,98,122],[6,30,54,78,102,126],[6,26,52,78,104,130],[6,30,56,82,108,134],[6,34,60,86,112,138],[6,30,58,86,114,142],[6,34,62,90,118,146],[6,30,54,78,102,126,150],[6,24,50,76,102,128,154],[6,28,54,80,106,132,158],[6,32,58,84,110,136,162],[6,26,54,82,110,138,166],[6,30,58,86,114,142,170]],G15:1335,G18:7973,G15_MASK:21522,getBCHTypeInfo:function(a){for(var b=a<<10;QRUtil.getBCHDigit(b)-QRUtil.getBCHDigit(QRUtil.G15)>=0;){b^=QRUtil.G15<<QRUtil.getBCHDigit(b)-QRUtil.getBCHDigit(QRUtil.G15)}return(a<<10|b)^QRUtil.G15_MASK},getBCHTypeNumber:function(a){for(var b=a<<12;QRUtil.getBCHDigit(b)-QRUtil.getBCHDigit(QRUtil.G18)>=0;){b^=QRUtil.G18<<QRUtil.getBCHDigit(b)-QRUtil.getBCHDigit(QRUtil.G18)}return a<<12|b},getBCHDigit:function(a){for(var b=0;0!=a;){b++,a>>>=1}return b},getPatternPosition:function(a){return QRUtil.PATTERN_POSITION_TABLE[a-1]},getMask:function(a,b,c){switch(a){case QRMaskPattern.PATTERN000:return 0==(b+c)%2;case QRMaskPattern.PATTERN001:return 0==b%2;case QRMaskPattern.PATTERN010:return 0==c%3;case QRMaskPattern.PATTERN011:return 0==(b+c)%3;case QRMaskPattern.PATTERN100:return 0==(Math.floor(b/2)+Math.floor(c/3))%2;case QRMaskPattern.PATTERN101:return 0==b*c%2+b*c%3;case QRMaskPattern.PATTERN110:return 0==(b*c%2+b*c%3)%2;case QRMaskPattern.PATTERN111:return 0==(b*c%3+(b+c)%2)%2;default:throw new Error("bad maskPattern:"+a)}},getErrorCorrectPolynomial:function(a){var c,b=new QRPolynomial([1],0);for(c=0;a>c;c++){b=b.multiply(new QRPolynomial([1,QRMath.gexp(c)],0))}return b},getLengthInBits:function(a,b){if(b>=1&&10>b){switch(a){case QRMode.MODE_NUMBER:return 10;case QRMode.MODE_ALPHA_NUM:return 9;case QRMode.MODE_8BIT_BYTE:return 8;case QRMode.MODE_KANJI:return 8;default:throw new Error("mode:"+a)}}else{if(27>b){switch(a){case QRMode.MODE_NUMBER:return 12;case QRMode.MODE_ALPHA_NUM:return 11;case QRMode.MODE_8BIT_BYTE:return 16;case QRMode.MODE_KANJI:return 10;default:throw new Error("mode:"+a)}}else{if(!(41>b)){throw new Error("type:"+b)}switch(a){case QRMode.MODE_NUMBER:return 14;case QRMode.MODE_ALPHA_NUM:return 13;case QRMode.MODE_8BIT_BYTE:return 16;case QRMode.MODE_KANJI:return 12;default:throw new Error("mode:"+a)}}}},getLostPoint:function(a){var d,e,f,g,h,i,j,k,l,b=a.getModuleCount(),c=0;for(d=0;b>d;d++){for(e=0;b>e;e++){for(f=0,g=a.isDark(d,e),h=-1;1>=h;h++){if(!(0>d+h||d+h>=b)){for(i=-1;1>=i;i++){0>e+i||e+i>=b||(0!=h||0!=i)&&g==a.isDark(d+h,e+i)&&f++}}}f>5&&(c+=3+f-5)}}for(d=0;b-1>d;d++){for(e=0;b-1>e;e++){j=0,a.isDark(d,e)&&j++,a.isDark(d+1,e)&&j++,a.isDark(d,e+1)&&j++,a.isDark(d+1,e+1)&&j++,(0==j||4==j)&&(c+=3)}}for(d=0;b>d;d++){for(e=0;b-6>e;e++){a.isDark(d,e)&&!a.isDark(d,e+1)&&a.isDark(d,e+2)&&a.isDark(d,e+3)&&a.isDark(d,e+4)&&!a.isDark(d,e+5)&&a.isDark(d,e+6)&&(c+=40)}}for(e=0;b>e;e++){for(d=0;b-6>d;d++){a.isDark(d,e)&&!a.isDark(d+1,e)&&a.isDark(d+2,e)&&a.isDark(d+3,e)&&a.isDark(d+4,e)&&!a.isDark(d+5,e)&&a.isDark(d+6,e)&&(c+=40)}}for(k=0,e=0;b>e;e++){for(d=0;b>d;d++){a.isDark(d,e)&&k++}}return l=Math.abs(100*k/b/b-50)/5,c+=10*l}},QRMath={glog:function(a){if(1>a){throw new Error("glog("+a+")")}return QRMath.LOG_TABLE[a]},gexp:function(a){for(;0>a;){a+=255}for(;a>=256;){a-=255}return QRMath.EXP_TABLE[a]},EXP_TABLE:new Array(256),LOG_TABLE:new Array(256)},i=0;8>i;i++){QRMath.EXP_TABLE[i]=1<<i}for(i=8;256>i;i++){QRMath.EXP_TABLE[i]=QRMath.EXP_TABLE[i-4]^QRMath.EXP_TABLE[i-5]^QRMath.EXP_TABLE[i-6]^QRMath.EXP_TABLE[i-8]}for(i=0;255>i;i++){QRMath.LOG_TABLE[QRMath.EXP_TABLE[i]]=i}QRPolynomial.prototype={get:function(a){return this.num[a]},getLength:function(){return this.num.length},multiply:function(a){var c,d,b=new Array(this.getLength()+a.getLength()-1);for(c=0;c<this.getLength();c++){for(d=0;d<a.getLength();d++){b[c+d]^=QRMath.gexp(QRMath.glog(this.get(c))+QRMath.glog(a.get(d)))}}return new QRPolynomial(b,0)},mod:function(a){var b,c,d;if(this.getLength()-a.getLength()<0){return this}for(b=QRMath.glog(this.get(0))-QRMath.glog(a.get(0)),c=new Array(this.getLength()),d=0;d<this.getLength();d++){c[d]=this.get(d)}for(d=0;d<a.getLength();d++){c[d]^=QRMath.gexp(QRMath.glog(a.get(d))+b)}return new QRPolynomial(c,0).mod(a)}},QRRSBlock.RS_BLOCK_TABLE=[[1,26,19],[1,26,16],[1,26,13],[1,26,9],[1,44,34],[1,44,28],[1,44,22],[1,44,16],[1,70,55],[1,70,44],[2,35,17],[2,35,13],[1,100,80],[2,50,32],[2,50,24],[4,25,9],[1,134,108],[2,67,43],[2,33,15,2,34,16],[2,33,11,2,34,12],[2,86,68],[4,43,27],[4,43,19],[4,43,15],[2,98,78],[4,49,31],[2,32,14,4,33,15],[4,39,13,1,40,14],[2,121,97],[2,60,38,2,61,39],[4,40,18,2,41,19],[4,40,14,2,41,15],[2,146,116],[3,58,36,2,59,37],[4,36,16,4,37,17],[4,36,12,4,37,13],[2,86,68,2,87,69],[4,69,43,1,70,44],[6,43,19,2,44,20],[6,43,15,2,44,16],[4,101,81],[1,80,50,4,81,51],[4,50,22,4,51,23],[3,36,12,8,37,13],[2,116,92,2,117,93],[6,58,36,2,59,37],[4,46,20,6,47,21],[7,42,14,4,43,15],[4,133,107],[8,59,37,1,60,38],[8,44,20,4,45,21],[12,33,11,4,34,12],[3,145,115,1,146,116],[4,64,40,5,65,41],[11,36,16,5,37,17],[11,36,12,5,37,13],[5,109,87,1,110,88],[5,65,41,5,66,42],[5,54,24,7,55,25],[11,36,12],[5,122,98,1,123,99],[7,73,45,3,74,46],[15,43,19,2,44,20],[3,45,15,13,46,16],[1,135,107,5,136,108],[10,74,46,1,75,47],[1,50,22,15,51,23],[2,42,14,17,43,15],[5,150,120,1,151,121],[9,69,43,4,70,44],[17,50,22,1,51,23],[2,42,14,19,43,15],[3,141,113,4,142,114],[3,70,44,11,71,45],[17,47,21,4,48,22],[9,39,13,16,40,14],[3,135,107,5,136,108],[3,67,41,13,68,42],[15,54,24,5,55,25],[15,43,15,10,44,16],[4,144,116,4,145,117],[17,68,42],[17,50,22,6,51,23],[19,46,16,6,47,17],[2,139,111,7,140,112],[17,74,46],[7,54,24,16,55,25],[34,37,13],[4,151,121,5,152,122],[4,75,47,14,76,48],[11,54,24,14,55,25],[16,45,15,14,46,16],[6,147,117,4,148,118],[6,73,45,14,74,46],[11,54,24,16,55,25],[30,46,16,2,47,17],[8,132,106,4,133,107],[8,75,47,13,76,48],[7,54,24,22,55,25],[22,45,15,13,46,16],[10,142,114,2,143,115],[19,74,46,4,75,47],[28,50,22,6,51,23],[33,46,16,4,47,17],[8,152,122,4,153,123],[22,73,45,3,74,46],[8,53,23,26,54,24],[12,45,15,28,46,16],[3,147,117,10,148,118],[3,73,45,23,74,46],[4,54,24,31,55,25],[11,45,15,31,46,16],[7,146,116,7,147,117],[21,73,45,7,74,46],[1,53,23,37,54,24],[19,45,15,26,46,16],[5,145,115,10,146,116],[19,75,47,10,76,48],[15,54,24,25,55,25],[23,45,15,25,46,16],[13,145,115,3,146,116],[2,74,46,29,75,47],[42,54,24,1,55,25],[23,45,15,28,46,16],[17,145,115],[10,74,46,23,75,47],[10,54,24,35,55,25],[19,45,15,35,46,16],[17,145,115,1,146,116],[14,74,46,21,75,47],[29,54,24,19,55,25],[11,45,15,46,46,16],[13,145,115,6,146,116],[14,74,46,23,75,47],[44,54,24,7,55,25],[59,46,16,1,47,17],[12,151,121,7,152,122],[12,75,47,26,76,48],[39,54,24,14,55,25],[22,45,15,41,46,16],[6,151,121,14,152,122],[6,75,47,34,76,48],[46,54,24,10,55,25],[2,45,15,64,46,16],[17,152,122,4,153,123],[29,74,46,14,75,47],[49,54,24,10,55,25],[24,45,15,46,46,16],[4,152,122,18,153,123],[13,74,46,32,75,47],[48,54,24,14,55,25],[42,45,15,32,46,16],[20,147,117,4,148,118],[40,75,47,7,76,48],[43,54,24,22,55,25],[10,45,15,67,46,16],[19,148,118,6,149,119],[18,75,47,31,76,48],[34,54,24,34,55,25],[20,45,15,61,46,16]],QRRSBlock.getRSBlocks=function(a,b){var d,e,f,g,h,i,j,c=QRRSBlock.getRsBlockTable(a,b);if(void 0==c){throw new Error("bad rs block @ typeNumber:"+a+"/errorCorrectLevel:"+b)}for(d=c.length/3,e=new Array(),f=0;d>f;f++){for(g=c[3*f+0],h=c[3*f+1],i=c[3*f+2],j=0;g>j;j++){e.push(new QRRSBlock(h,i))}}return e},QRRSBlock.getRsBlockTable=function(a,b){switch(b){case QRErrorCorrectLevel.L:return QRRSBlock.RS_BLOCK_TABLE[4*(a-1)+0];case QRErrorCorrectLevel.M:return QRRSBlock.RS_BLOCK_TABLE[4*(a-1)+1];case QRErrorCorrectLevel.Q:return QRRSBlock.RS_BLOCK_TABLE[4*(a-1)+2];case QRErrorCorrectLevel.H:return QRRSBlock.RS_BLOCK_TABLE[4*(a-1)+3];default:return void 0}},QRBitBuffer.prototype={get:function(a){var b=Math.floor(a/8);return 1==(1&this.buffer[b]>>>7-a%8)},put:function(a,b){for(var c=0;b>c;c++){this.putBit(1==(1&a>>>b-c-1))}},getLengthInBits:function(){return this.length},putBit:function(a){var b=Math.floor(this.length/8);this.buffer.length<=b&&this.buffer.push(0),a&&(this.buffer[b]|=128>>>this.length%8),this.length++}};
qrcode.js文件
//---------------------------------------------------------------------
// QRCode for JavaScript
//
// Copyright (c) 2009 Kazuhiko Arase
//
// URL: http://www.d-project.com/
//
// Licensed under the MIT license:
// http://www.opensource.org/licenses/mit-license.php
//
// The word "QR Code" is registered trademark of
// DENSO WAVE INCORPORATED
// http://www.denso-wave.com/qrcode/faqpatent-e.html
//
//--------------------------------------------------------------------- //---------------------------------------------------------------------
// QR8bitByte
//--------------------------------------------------------------------- function QR8bitByte(data) {
this.mode = QRMode.MODE_8BIT_BYTE;
this.data = data;
} QR8bitByte.prototype = { getLength : function(buffer) {
return this.data.length;
}, write : function(buffer) {
for (var i = 0; i < this.data.length; i++) {
// not JIS ...
buffer.put(this.data.charCodeAt(i), 8);
}
}
}; //---------------------------------------------------------------------
// QRCode
//--------------------------------------------------------------------- function QRCode(typeNumber, errorCorrectLevel) {
this.typeNumber = typeNumber;
this.errorCorrectLevel = errorCorrectLevel;
this.modules = null;
this.moduleCount = 0;
this.dataCache = null;
this.dataList = new Array();
} QRCode.prototype = { addData : function(data) {
var newData = new QR8bitByte(data);
this.dataList.push(newData);
this.dataCache = null;
}, isDark : function(row, col) {
if (row < 0 || this.moduleCount <= row || col < 0 || this.moduleCount <= col) {
throw new Error(row + "," + col);
}
return this.modules[row][col];
}, getModuleCount : function() {
return this.moduleCount;
}, make : function() {
// Calculate automatically typeNumber if provided is < 1
if (this.typeNumber < 1 ){
var typeNumber = 1;
for (typeNumber = 1; typeNumber < 40; typeNumber++) {
var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, this.errorCorrectLevel); var buffer = new QRBitBuffer();
var totalDataCount = 0;
for (var i = 0; i < rsBlocks.length; i++) {
totalDataCount += rsBlocks[i].dataCount;
} for (var i = 0; i < this.dataList.length; i++) {
var data = this.dataList[i];
buffer.put(data.mode, 4);
buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber) );
data.write(buffer);
}
if (buffer.getLengthInBits() <= totalDataCount * 8)
break;
}
this.typeNumber = typeNumber;
}
this.makeImpl(false, this.getBestMaskPattern() );
}, makeImpl : function(test, maskPattern) { this.moduleCount = this.typeNumber * 4 + 17;
this.modules = new Array(this.moduleCount); for (var row = 0; row < this.moduleCount; row++) { this.modules[row] = new Array(this.moduleCount); for (var col = 0; col < this.moduleCount; col++) {
this.modules[row][col] = null;//(col + row) % 3;
}
} this.setupPositionProbePattern(0, 0);
this.setupPositionProbePattern(this.moduleCount - 7, 0);
this.setupPositionProbePattern(0, this.moduleCount - 7);
this.setupPositionAdjustPattern();
this.setupTimingPattern();
this.setupTypeInfo(test, maskPattern); if (this.typeNumber >= 7) {
this.setupTypeNumber(test);
} if (this.dataCache == null) {
this.dataCache = QRCode.createData(this.typeNumber, this.errorCorrectLevel, this.dataList);
} this.mapData(this.dataCache, maskPattern);
}, setupPositionProbePattern : function(row, col) { for (var r = -1; r <= 7; r++) { if (row + r <= -1 || this.moduleCount <= row + r) continue; for (var c = -1; c <= 7; c++) { if (col + c <= -1 || this.moduleCount <= col + c) continue; if ( (0 <= r && r <= 6 && (c == 0 || c == 6) )
|| (0 <= c && c <= 6 && (r == 0 || r == 6) )
|| (2 <= r && r <= 4 && 2 <= c && c <= 4) ) {
this.modules[row + r][col + c] = true;
} else {
this.modules[row + r][col + c] = false;
}
}
}
}, getBestMaskPattern : function() { var minLostPoint = 0;
var pattern = 0; for (var i = 0; i < 8; i++) { this.makeImpl(true, i); var lostPoint = QRUtil.getLostPoint(this); if (i == 0 || minLostPoint > lostPoint) {
minLostPoint = lostPoint;
pattern = i;
}
} return pattern;
}, createMovieClip : function(target_mc, instance_name, depth) { var qr_mc = target_mc.createEmptyMovieClip(instance_name, depth);
var cs = 1; this.make(); for (var row = 0; row < this.modules.length; row++) { var y = row * cs; for (var col = 0; col < this.modules[row].length; col++) { var x = col * cs;
var dark = this.modules[row][col]; if (dark) {
qr_mc.beginFill(0, 100);
qr_mc.moveTo(x, y);
qr_mc.lineTo(x + cs, y);
qr_mc.lineTo(x + cs, y + cs);
qr_mc.lineTo(x, y + cs);
qr_mc.endFill();
}
}
} return qr_mc;
}, setupTimingPattern : function() { for (var r = 8; r < this.moduleCount - 8; r++) {
if (this.modules[r][6] != null) {
continue;
}
this.modules[r][6] = (r % 2 == 0);
} for (var c = 8; c < this.moduleCount - 8; c++) {
if (this.modules[6][c] != null) {
continue;
}
this.modules[6][c] = (c % 2 == 0);
}
}, setupPositionAdjustPattern : function() { var pos = QRUtil.getPatternPosition(this.typeNumber); for (var i = 0; i < pos.length; i++) { for (var j = 0; j < pos.length; j++) { var row = pos[i];
var col = pos[j]; if (this.modules[row][col] != null) {
continue;
} for (var r = -2; r <= 2; r++) { for (var c = -2; c <= 2; c++) { if (r == -2 || r == 2 || c == -2 || c == 2
|| (r == 0 && c == 0) ) {
this.modules[row + r][col + c] = true;
} else {
this.modules[row + r][col + c] = false;
}
}
}
}
}
}, setupTypeNumber : function(test) { var bits = QRUtil.getBCHTypeNumber(this.typeNumber); for (var i = 0; i < 18; i++) {
var mod = (!test && ( (bits >> i) & 1) == 1);
this.modules[Math.floor(i / 3)][i % 3 + this.moduleCount - 8 - 3] = mod;
} for (var i = 0; i < 18; i++) {
var mod = (!test && ( (bits >> i) & 1) == 1);
this.modules[i % 3 + this.moduleCount - 8 - 3][Math.floor(i / 3)] = mod;
}
}, setupTypeInfo : function(test, maskPattern) { var data = (this.errorCorrectLevel << 3) | maskPattern;
var bits = QRUtil.getBCHTypeInfo(data); // vertical
for (var i = 0; i < 15; i++) { var mod = (!test && ( (bits >> i) & 1) == 1); if (i < 6) {
this.modules[i][8] = mod;
} else if (i < 8) {
this.modules[i + 1][8] = mod;
} else {
this.modules[this.moduleCount - 15 + i][8] = mod;
}
} // horizontal
for (var i = 0; i < 15; i++) { var mod = (!test && ( (bits >> i) & 1) == 1); if (i < 8) {
this.modules[8][this.moduleCount - i - 1] = mod;
} else if (i < 9) {
this.modules[8][15 - i - 1 + 1] = mod;
} else {
this.modules[8][15 - i - 1] = mod;
}
} // fixed module
this.modules[this.moduleCount - 8][8] = (!test); }, mapData : function(data, maskPattern) { var inc = -1;
var row = this.moduleCount - 1;
var bitIndex = 7;
var byteIndex = 0; for (var col = this.moduleCount - 1; col > 0; col -= 2) { if (col == 6) col--; while (true) { for (var c = 0; c < 2; c++) { if (this.modules[row][col - c] == null) { var dark = false; if (byteIndex < data.length) {
dark = ( ( (data[byteIndex] >>> bitIndex) & 1) == 1);
} var mask = QRUtil.getMask(maskPattern, row, col - c); if (mask) {
dark = !dark;
} this.modules[row][col - c] = dark;
bitIndex--; if (bitIndex == -1) {
byteIndex++;
bitIndex = 7;
}
}
} row += inc; if (row < 0 || this.moduleCount <= row) {
row -= inc;
inc = -inc;
break;
}
}
} } }; QRCode.PAD0 = 0xEC;
QRCode.PAD1 = 0x11; QRCode.createData = function(typeNumber, errorCorrectLevel, dataList) { var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel); var buffer = new QRBitBuffer(); for (var i = 0; i < dataList.length; i++) {
var data = dataList[i];
buffer.put(data.mode, 4);
buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber) );
data.write(buffer);
} // calc num max data.
var totalDataCount = 0;
for (var i = 0; i < rsBlocks.length; i++) {
totalDataCount += rsBlocks[i].dataCount;
} if (buffer.getLengthInBits() > totalDataCount * 8) {
throw new Error("code length overflow. ("
+ buffer.getLengthInBits()
+ ">"
+ totalDataCount * 8
+ ")");
} // end code
if (buffer.getLengthInBits() + 4 <= totalDataCount * 8) {
buffer.put(0, 4);
} // padding
while (buffer.getLengthInBits() % 8 != 0) {
buffer.putBit(false);
} // padding
while (true) { if (buffer.getLengthInBits() >= totalDataCount * 8) {
break;
}
buffer.put(QRCode.PAD0, 8); if (buffer.getLengthInBits() >= totalDataCount * 8) {
break;
}
buffer.put(QRCode.PAD1, 8);
} return QRCode.createBytes(buffer, rsBlocks);
} QRCode.createBytes = function(buffer, rsBlocks) { var offset = 0; var maxDcCount = 0;
var maxEcCount = 0; var dcdata = new Array(rsBlocks.length);
var ecdata = new Array(rsBlocks.length); for (var r = 0; r < rsBlocks.length; r++) { var dcCount = rsBlocks[r].dataCount;
var ecCount = rsBlocks[r].totalCount - dcCount; maxDcCount = Math.max(maxDcCount, dcCount);
maxEcCount = Math.max(maxEcCount, ecCount); dcdata[r] = new Array(dcCount); for (var i = 0; i < dcdata[r].length; i++) {
dcdata[r][i] = 0xff & buffer.buffer[i + offset];
}
offset += dcCount; var rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount);
var rawPoly = new QRPolynomial(dcdata[r], rsPoly.getLength() - 1); var modPoly = rawPoly.mod(rsPoly);
ecdata[r] = new Array(rsPoly.getLength() - 1);
for (var i = 0; i < ecdata[r].length; i++) {
var modIndex = i + modPoly.getLength() - ecdata[r].length;
ecdata[r][i] = (modIndex >= 0)? modPoly.get(modIndex) : 0;
} } var totalCodeCount = 0;
for (var i = 0; i < rsBlocks.length; i++) {
totalCodeCount += rsBlocks[i].totalCount;
} var data = new Array(totalCodeCount);
var index = 0; for (var i = 0; i < maxDcCount; i++) {
for (var r = 0; r < rsBlocks.length; r++) {
if (i < dcdata[r].length) {
data[index++] = dcdata[r][i];
}
}
} for (var i = 0; i < maxEcCount; i++) {
for (var r = 0; r < rsBlocks.length; r++) {
if (i < ecdata[r].length) {
data[index++] = ecdata[r][i];
}
}
} return data; } //---------------------------------------------------------------------
// QRMode
//--------------------------------------------------------------------- var QRMode = {
MODE_NUMBER : 1 << 0,
MODE_ALPHA_NUM : 1 << 1,
MODE_8BIT_BYTE : 1 << 2,
MODE_KANJI : 1 << 3
}; //---------------------------------------------------------------------
// QRErrorCorrectLevel
//--------------------------------------------------------------------- var QRErrorCorrectLevel = {
L : 1,
M : 0,
Q : 3,
H : 2
}; //---------------------------------------------------------------------
// QRMaskPattern
//--------------------------------------------------------------------- var QRMaskPattern = {
PATTERN000 : 0,
PATTERN001 : 1,
PATTERN010 : 2,
PATTERN011 : 3,
PATTERN100 : 4,
PATTERN101 : 5,
PATTERN110 : 6,
PATTERN111 : 7
}; //---------------------------------------------------------------------
// QRUtil
//--------------------------------------------------------------------- var QRUtil = { PATTERN_POSITION_TABLE : [
[],
[6, 18],
[6, 22],
[6, 26],
[6, 30],
[6, 34],
[6, 22, 38],
[6, 24, 42],
[6, 26, 46],
[6, 28, 50],
[6, 30, 54],
[6, 32, 58],
[6, 34, 62],
[6, 26, 46, 66],
[6, 26, 48, 70],
[6, 26, 50, 74],
[6, 30, 54, 78],
[6, 30, 56, 82],
[6, 30, 58, 86],
[6, 34, 62, 90],
[6, 28, 50, 72, 94],
[6, 26, 50, 74, 98],
[6, 30, 54, 78, 102],
[6, 28, 54, 80, 106],
[6, 32, 58, 84, 110],
[6, 30, 58, 86, 114],
[6, 34, 62, 90, 118],
[6, 26, 50, 74, 98, 122],
[6, 30, 54, 78, 102, 126],
[6, 26, 52, 78, 104, 130],
[6, 30, 56, 82, 108, 134],
[6, 34, 60, 86, 112, 138],
[6, 30, 58, 86, 114, 142],
[6, 34, 62, 90, 118, 146],
[6, 30, 54, 78, 102, 126, 150],
[6, 24, 50, 76, 102, 128, 154],
[6, 28, 54, 80, 106, 132, 158],
[6, 32, 58, 84, 110, 136, 162],
[6, 26, 54, 82, 110, 138, 166],
[6, 30, 58, 86, 114, 142, 170]
], G15 : (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0),
G18 : (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0),
G15_MASK : (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1), getBCHTypeInfo : function(data) {
var d = data << 10;
while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) >= 0) {
d ^= (QRUtil.G15 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) ) );
}
return ( (data << 10) | d) ^ QRUtil.G15_MASK;
}, getBCHTypeNumber : function(data) {
var d = data << 12;
while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) >= 0) {
d ^= (QRUtil.G18 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) ) );
}
return (data << 12) | d;
}, getBCHDigit : function(data) { var digit = 0; while (data != 0) {
digit++;
data >>>= 1;
} return digit;
}, getPatternPosition : function(typeNumber) {
return QRUtil.PATTERN_POSITION_TABLE[typeNumber - 1];
}, getMask : function(maskPattern, i, j) { switch (maskPattern) { case QRMaskPattern.PATTERN000 : return (i + j) % 2 == 0;
case QRMaskPattern.PATTERN001 : return i % 2 == 0;
case QRMaskPattern.PATTERN010 : return j % 3 == 0;
case QRMaskPattern.PATTERN011 : return (i + j) % 3 == 0;
case QRMaskPattern.PATTERN100 : return (Math.floor(i / 2) + Math.floor(j / 3) ) % 2 == 0;
case QRMaskPattern.PATTERN101 : return (i * j) % 2 + (i * j) % 3 == 0;
case QRMaskPattern.PATTERN110 : return ( (i * j) % 2 + (i * j) % 3) % 2 == 0;
case QRMaskPattern.PATTERN111 : return ( (i * j) % 3 + (i + j) % 2) % 2 == 0; default :
throw new Error("bad maskPattern:" + maskPattern);
}
}, getErrorCorrectPolynomial : function(errorCorrectLength) { var a = new QRPolynomial([1], 0); for (var i = 0; i < errorCorrectLength; i++) {
a = a.multiply(new QRPolynomial([1, QRMath.gexp(i)], 0) );
} return a;
}, getLengthInBits : function(mode, type) { if (1 <= type && type < 10) { // 1 - 9 switch(mode) {
case QRMode.MODE_NUMBER : return 10;
case QRMode.MODE_ALPHA_NUM : return 9;
case QRMode.MODE_8BIT_BYTE : return 8;
case QRMode.MODE_KANJI : return 8;
default :
throw new Error("mode:" + mode);
} } else if (type < 27) { // 10 - 26 switch(mode) {
case QRMode.MODE_NUMBER : return 12;
case QRMode.MODE_ALPHA_NUM : return 11;
case QRMode.MODE_8BIT_BYTE : return 16;
case QRMode.MODE_KANJI : return 10;
default :
throw new Error("mode:" + mode);
} } else if (type < 41) { // 27 - 40 switch(mode) {
case QRMode.MODE_NUMBER : return 14;
case QRMode.MODE_ALPHA_NUM : return 13;
case QRMode.MODE_8BIT_BYTE : return 16;
case QRMode.MODE_KANJI : return 12;
default :
throw new Error("mode:" + mode);
} } else {
throw new Error("type:" + type);
}
}, getLostPoint : function(qrCode) { var moduleCount = qrCode.getModuleCount(); var lostPoint = 0; // LEVEL1 for (var row = 0; row < moduleCount; row++) { for (var col = 0; col < moduleCount; col++) { var sameCount = 0;
var dark = qrCode.isDark(row, col); for (var r = -1; r <= 1; r++) { if (row + r < 0 || moduleCount <= row + r) {
continue;
} for (var c = -1; c <= 1; c++) { if (col + c < 0 || moduleCount <= col + c) {
continue;
} if (r == 0 && c == 0) {
continue;
} if (dark == qrCode.isDark(row + r, col + c) ) {
sameCount++;
}
}
} if (sameCount > 5) {
lostPoint += (3 + sameCount - 5);
}
}
} // LEVEL2 for (var row = 0; row < moduleCount - 1; row++) {
for (var col = 0; col < moduleCount - 1; col++) {
var count = 0;
if (qrCode.isDark(row, col ) ) count++;
if (qrCode.isDark(row + 1, col ) ) count++;
if (qrCode.isDark(row, col + 1) ) count++;
if (qrCode.isDark(row + 1, col + 1) ) count++;
if (count == 0 || count == 4) {
lostPoint += 3;
}
}
} // LEVEL3 for (var row = 0; row < moduleCount; row++) {
for (var col = 0; col < moduleCount - 6; col++) {
if (qrCode.isDark(row, col)
&& !qrCode.isDark(row, col + 1)
&& qrCode.isDark(row, col + 2)
&& qrCode.isDark(row, col + 3)
&& qrCode.isDark(row, col + 4)
&& !qrCode.isDark(row, col + 5)
&& qrCode.isDark(row, col + 6) ) {
lostPoint += 40;
}
}
} for (var col = 0; col < moduleCount; col++) {
for (var row = 0; row < moduleCount - 6; row++) {
if (qrCode.isDark(row, col)
&& !qrCode.isDark(row + 1, col)
&& qrCode.isDark(row + 2, col)
&& qrCode.isDark(row + 3, col)
&& qrCode.isDark(row + 4, col)
&& !qrCode.isDark(row + 5, col)
&& qrCode.isDark(row + 6, col) ) {
lostPoint += 40;
}
}
} // LEVEL4 var darkCount = 0; for (var col = 0; col < moduleCount; col++) {
for (var row = 0; row < moduleCount; row++) {
if (qrCode.isDark(row, col) ) {
darkCount++;
}
}
} var ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5;
lostPoint += ratio * 10; return lostPoint;
} }; //---------------------------------------------------------------------
// QRMath
//--------------------------------------------------------------------- var QRMath = { glog : function(n) { if (n < 1) {
throw new Error("glog(" + n + ")");
} return QRMath.LOG_TABLE[n];
}, gexp : function(n) { while (n < 0) {
n += 255;
} while (n >= 256) {
n -= 255;
} return QRMath.EXP_TABLE[n];
}, EXP_TABLE : new Array(256), LOG_TABLE : new Array(256) }; for (var i = 0; i < 8; i++) {
QRMath.EXP_TABLE[i] = 1 << i;
}
for (var i = 8; i < 256; i++) {
QRMath.EXP_TABLE[i] = QRMath.EXP_TABLE[i - 4]
^ QRMath.EXP_TABLE[i - 5]
^ QRMath.EXP_TABLE[i - 6]
^ QRMath.EXP_TABLE[i - 8];
}
for (var i = 0; i < 255; i++) {
QRMath.LOG_TABLE[QRMath.EXP_TABLE[i] ] = i;
} //---------------------------------------------------------------------
// QRPolynomial
//--------------------------------------------------------------------- function QRPolynomial(num, shift) { if (num.length == undefined) {
throw new Error(num.length + "/" + shift);
} var offset = 0; while (offset < num.length && num[offset] == 0) {
offset++;
} this.num = new Array(num.length - offset + shift);
for (var i = 0; i < num.length - offset; i++) {
this.num[i] = num[i + offset];
}
} QRPolynomial.prototype = { get : function(index) {
return this.num[index];
}, getLength : function() {
return this.num.length;
}, multiply : function(e) { var num = new Array(this.getLength() + e.getLength() - 1); for (var i = 0; i < this.getLength(); i++) {
for (var j = 0; j < e.getLength(); j++) {
num[i + j] ^= QRMath.gexp(QRMath.glog(this.get(i) ) + QRMath.glog(e.get(j) ) );
}
} return new QRPolynomial(num, 0);
}, mod : function(e) { if (this.getLength() - e.getLength() < 0) {
return this;
} var ratio = QRMath.glog(this.get(0) ) - QRMath.glog(e.get(0) ); var num = new Array(this.getLength() ); for (var i = 0; i < this.getLength(); i++) {
num[i] = this.get(i);
} for (var i = 0; i < e.getLength(); i++) {
num[i] ^= QRMath.gexp(QRMath.glog(e.get(i) ) + ratio);
} // recursive call
return new QRPolynomial(num, 0).mod(e);
}
}; //---------------------------------------------------------------------
// QRRSBlock
//--------------------------------------------------------------------- function QRRSBlock(totalCount, dataCount) {
this.totalCount = totalCount;
this.dataCount = dataCount;
} QRRSBlock.RS_BLOCK_TABLE = [ // L
// M
// Q
// H //
[1, 26, 19],
[1, 26, 16],
[1, 26, 13],
[1, 26, 9], //
[1, 44, 34],
[1, 44, 28],
[1, 44, 22],
[1, 44, 16], //
[1, 70, 55],
[1, 70, 44],
[2, 35, 17],
[2, 35, 13], // 4
[1, 100, 80],
[2, 50, 32],
[2, 50, 24],
[4, 25, 9], //
[1, 134, 108],
[2, 67, 43],
[2, 33, 15, 2, 34, 16],
[2, 33, 11, 2, 34, 12], //
[2, 86, 68],
[4, 43, 27],
[4, 43, 19],
[4, 43, 15], // 7
[2, 98, 78],
[4, 49, 31],
[2, 32, 14, 4, 33, 15],
[4, 39, 13, 1, 40, 14], //
[2, 121, 97],
[2, 60, 38, 2, 61, 39],
[4, 40, 18, 2, 41, 19],
[4, 40, 14, 2, 41, 15], //
[2, 146, 116],
[3, 58, 36, 2, 59, 37],
[4, 36, 16, 4, 37, 17],
[4, 36, 12, 4, 37, 13], // 10
[2, 86, 68, 2, 87, 69],
[4, 69, 43, 1, 70, 44],
[6, 43, 19, 2, 44, 20],
[6, 43, 15, 2, 44, 16], //
[4, 101, 81],
[1, 80, 50, 4, 81, 51],
[4, 50, 22, 4, 51, 23],
[3, 36, 12, 8, 37, 13], //
[2, 116, 92, 2, 117, 93],
[6, 58, 36, 2, 59, 37],
[4, 46, 20, 6, 47, 21],
[7, 42, 14, 4, 43, 15], //
[4, 133, 107],
[8, 59, 37, 1, 60, 38],
[8, 44, 20, 4, 45, 21],
[12, 33, 11, 4, 34, 12], //
[3, 145, 115, 1, 146, 116],
[4, 64, 40, 5, 65, 41],
[11, 36, 16, 5, 37, 17],
[11, 36, 12, 5, 37, 13], //
[5, 109, 87, 1, 110, 88],
[5, 65, 41, 5, 66, 42],
[5, 54, 24, 7, 55, 25],
[11, 36, 12], //
[5, 122, 98, 1, 123, 99],
[7, 73, 45, 3, 74, 46],
[15, 43, 19, 2, 44, 20],
[3, 45, 15, 13, 46, 16], //
[1, 135, 107, 5, 136, 108],
[10, 74, 46, 1, 75, 47],
[1, 50, 22, 15, 51, 23],
[2, 42, 14, 17, 43, 15], //
[5, 150, 120, 1, 151, 121],
[9, 69, 43, 4, 70, 44],
[17, 50, 22, 1, 51, 23],
[2, 42, 14, 19, 43, 15], //
[3, 141, 113, 4, 142, 114],
[3, 70, 44, 11, 71, 45],
[17, 47, 21, 4, 48, 22],
[9, 39, 13, 16, 40, 14], //
[3, 135, 107, 5, 136, 108],
[3, 67, 41, 13, 68, 42],
[15, 54, 24, 5, 55, 25],
[15, 43, 15, 10, 44, 16], //
[4, 144, 116, 4, 145, 117],
[17, 68, 42],
[17, 50, 22, 6, 51, 23],
[19, 46, 16, 6, 47, 17], //
[2, 139, 111, 7, 140, 112],
[17, 74, 46],
[7, 54, 24, 16, 55, 25],
[34, 37, 13], //
[4, 151, 121, 5, 152, 122],
[4, 75, 47, 14, 76, 48],
[11, 54, 24, 14, 55, 25],
[16, 45, 15, 14, 46, 16], //
[6, 147, 117, 4, 148, 118],
[6, 73, 45, 14, 74, 46],
[11, 54, 24, 16, 55, 25],
[30, 46, 16, 2, 47, 17], //
[8, 132, 106, 4, 133, 107],
[8, 75, 47, 13, 76, 48],
[7, 54, 24, 22, 55, 25],
[22, 45, 15, 13, 46, 16], //
[10, 142, 114, 2, 143, 115],
[19, 74, 46, 4, 75, 47],
[28, 50, 22, 6, 51, 23],
[33, 46, 16, 4, 47, 17], //
[8, 152, 122, 4, 153, 123],
[22, 73, 45, 3, 74, 46],
[8, 53, 23, 26, 54, 24],
[12, 45, 15, 28, 46, 16], //
[3, 147, 117, 10, 148, 118],
[3, 73, 45, 23, 74, 46],
[4, 54, 24, 31, 55, 25],
[11, 45, 15, 31, 46, 16], //
[7, 146, 116, 7, 147, 117],
[21, 73, 45, 7, 74, 46],
[1, 53, 23, 37, 54, 24],
[19, 45, 15, 26, 46, 16], //
[5, 145, 115, 10, 146, 116],
[19, 75, 47, 10, 76, 48],
[15, 54, 24, 25, 55, 25],
[23, 45, 15, 25, 46, 16], //
[13, 145, 115, 3, 146, 116],
[2, 74, 46, 29, 75, 47],
[42, 54, 24, 1, 55, 25],
[23, 45, 15, 28, 46, 16], //
[17, 145, 115],
[10, 74, 46, 23, 75, 47],
[10, 54, 24, 35, 55, 25],
[19, 45, 15, 35, 46, 16], //
[17, 145, 115, 1, 146, 116],
[14, 74, 46, 21, 75, 47],
[29, 54, 24, 19, 55, 25],
[11, 45, 15, 46, 46, 16], //
[13, 145, 115, 6, 146, 116],
[14, 74, 46, 23, 75, 47],
[44, 54, 24, 7, 55, 25],
[59, 46, 16, 1, 47, 17], //
[12, 151, 121, 7, 152, 122],
[12, 75, 47, 26, 76, 48],
[39, 54, 24, 14, 55, 25],
[22, 45, 15, 41, 46, 16], //
[6, 151, 121, 14, 152, 122],
[6, 75, 47, 34, 76, 48],
[46, 54, 24, 10, 55, 25],
[2, 45, 15, 64, 46, 16], //
[17, 152, 122, 4, 153, 123],
[29, 74, 46, 14, 75, 47],
[49, 54, 24, 10, 55, 25],
[24, 45, 15, 46, 46, 16], //
[4, 152, 122, 18, 153, 123],
[13, 74, 46, 32, 75, 47],
[48, 54, 24, 14, 55, 25],
[42, 45, 15, 32, 46, 16], //
[20, 147, 117, 4, 148, 118],
[40, 75, 47, 7, 76, 48],
[43, 54, 24, 22, 55, 25],
[10, 45, 15, 67, 46, 16], //
[19, 148, 118, 6, 149, 119],
[18, 75, 47, 31, 76, 48],
[34, 54, 24, 34, 55, 25],
[20, 45, 15, 61, 46, 16]
]; QRRSBlock.getRSBlocks = function(typeNumber, errorCorrectLevel) { var rsBlock = QRRSBlock.getRsBlockTable(typeNumber, errorCorrectLevel); if (rsBlock == undefined) {
throw new Error("bad rs block @ typeNumber:" + typeNumber + "/errorCorrectLevel:" + errorCorrectLevel);
} var length = rsBlock.length / 3; var list = new Array(); for (var i = 0; i < length; i++) { var count = rsBlock[i * 3 + 0];
var totalCount = rsBlock[i * 3 + 1];
var dataCount = rsBlock[i * 3 + 2]; for (var j = 0; j < count; j++) {
list.push(new QRRSBlock(totalCount, dataCount) );
}
} return list;
} QRRSBlock.getRsBlockTable = function(typeNumber, errorCorrectLevel) { switch(errorCorrectLevel) {
case QRErrorCorrectLevel.L :
return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 0];
case QRErrorCorrectLevel.M :
return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1];
case QRErrorCorrectLevel.Q :
return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2];
case QRErrorCorrectLevel.H :
return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3];
default :
return undefined;
}
} //---------------------------------------------------------------------
// QRBitBuffer
//--------------------------------------------------------------------- function QRBitBuffer() {
this.buffer = new Array();
this.length = 0;
} QRBitBuffer.prototype = { get : function(index) {
var bufIndex = Math.floor(index / 8);
return ( (this.buffer[bufIndex] >>> (7 - index % 8) ) & 1) == 1;
}, put : function(num, length) {
for (var i = 0; i < length; i++) {
this.putBit( ( (num >>> (length - i - 1) ) & 1) == 1);
}
}, getLengthInBits : function() {
return this.length;
}, putBit : function(bit) { var bufIndex = Math.floor(this.length / 8);
if (this.buffer.length <= bufIndex) {
this.buffer.push(0);
} if (bit) {
this.buffer[bufIndex] |= (0x80 >>> (this.length % 8) );
} this.length++;
}
};
utf.js文件
/* utf.js - UTF-8 <=> UTF-16 convertion
*
* Copyright (C) 1999 Masanao Izumo <iz@onicos.co.jp>
* Version: 1.0
* LastModified: Dec 25 1999
* This library is free. You can redistribute it and/or modify it.
*/ /*
* Interfaces:
* utf8 = utf16to8(utf16);
* utf16 = utf16to8(utf8);
*/ function utf16to8(str) {
var out, i, len, c; out = "";
len = str.length;
for(i = 0; i < len; i++) {
c = str.charCodeAt(i);
if ((c >= 0x0001) && (c <= 0x007F)) {
out += str.charAt(i);
} else if (c > 0x07FF) {
out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));
out += String.fromCharCode(0x80 | ((c >> 6) & 0x3F));
out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
} else {
out += String.fromCharCode(0xC0 | ((c >> 6) & 0x1F));
out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
}
}
return out;
} function utf8to16(str) {
var out, i, len, c;
var char2, char3; out = "";
len = str.length;
i = 0;
while(i < len) {
c = str.charCodeAt(i++);
switch(c >> 4)
{
case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
// 0xxxxxxx
out += str.charAt(i-1);
break;
case 12: case 13:
// 110x xxxx 10xx xxxx
char2 = str.charCodeAt(i++);
out += String.fromCharCode(((c & 0x1F) << 6) | (char2 & 0x3F));
break;
case 14:
// 1110 xxxx 10xx xxxx 10xx xxxx
char2 = str.charCodeAt(i++);
char3 = str.charCodeAt(i++);
out += String.fromCharCode(((c & 0x0F) << 12) |
((char2 & 0x3F) << 6) |
((char3 & 0x3F) << 0));
break;
}
} return out;
}
当然工程还需药引入最重要的文件 jquery.js文件。
工程实例：
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta name="layout" content="main">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript" src="./jquery.js"></script>
<script type="text/javascript" src="./qrcode.js"></script>
<script type="text/javascript" src="./jquery.qrcode.js"></script>
<script type="text/javascript" src="./utf.js"></script>
<script type="text/javascript" >
function er(obj) {
$("#Qrcode").empty();
var url=$(obj).attr("val");
jQuery('#Qrcode').qrcode({
render : "canvas",
width : 300,
height : 300,
text : url,
src: 'th.jpg'
});
}
</script>
</head>
<body>
<div class="text-center">
<span>(二维码)</span>
<div val="https://www.baidu.com/s?f=8&rsv_bp=1&rsv_idx=1&word=哈哈&tn=95664754_hao_pg" onclick="er(this)">百度</div>
<div val="https://www.sogou.com/" onclick="er(this)">搜狗</div>
<div id="Qrcode"></div>
</div>
</body>
</html>
这样，中间带有图片的可以传中文参数的二维码就自动生成了！！！！
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