1 line
15 KiB
JavaScript
1 line
15 KiB
JavaScript
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){if(void 0==a.length)throw new Error(a.length+"/"+b);for(var c=0;c<a.length&&0==a[c];)c++;this.num=new Array(a.length-c+b);for(var 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}QR8bitByte.prototype={getLength:function(a){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(){if(this.typeNumber<1){var a=1;for(a=1;40>a;a++){for(var b=QRRSBlock.getRSBlocks(a,this.errorCorrectLevel),c=new QRBitBuffer,d=0,e=0;e<b.length;e++)d+=b[e].dataCount;for(var e=0;e<this.dataList.length;e++){var 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){this.moduleCount=4*this.typeNumber+17,this.modules=new Array(this.moduleCount);for(var c=0;c<this.moduleCount;c++){this.modules[c]=new Array(this.moduleCount);for(var 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){for(var c=-1;7>=c;c++)if(!(-1>=a+c||this.moduleCount<=a+c))for(var d=-1;7>=d;d++)-1>=b+d||this.moduleCount<=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?this.modules[a+c][b+d]=!0:this.modules[a+c][b+d]=!1)},getBestMaskPattern:function(){for(var a=0,b=0,c=0;8>c;c++){this.makeImpl(!0,c);var d=QRUtil.getLostPoint(this);(0==c||a>d)&&(a=d,b=c)}return b},createMovieClip:function(a,b,c){var d=a.createEmptyMovieClip(b,c),e=1;this.make();for(var f=0;f<this.modules.length;f++)for(var g=f*e,h=0;h<this.modules[f].length;h++){var 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(){for(var a=8;a<this.moduleCount-8;a++)null==this.modules[a][6]&&(this.modules[a][6]=a%2==0);for(var b=8;b<this.moduleCount-8;b++)null==this.modules[6][b]&&(this.modules[6][b]=b%2==0)},setupPositionAdjustPattern:function(){for(var a=QRUtil.getPatternPosition(this.typeNumber),b=0;b<a.length;b++)for(var c=0;c<a.length;c++){var d=a[b],e=a[c];if(null==this.modules[d][e])for(var f=-2;2>=f;f++)for(var g=-2;2>=g;g++)-2==f||2==f||-2==g||2==g||0==f&&0==g?this.modules[d+f][e+g]=!0:this.modules[d+f][e+g]=!1}},setupTypeNumber:function(a){for(var b=QRUtil.getBCHTypeNumber(this.typeNumber),c=0;18>c;c++){var d=!a&&1==(b>>c&1);this.modules[Math.floor(c/3)][c%3+this.moduleCount-8-3]=d}for(var c=0;18>c;c++){var d=!a&&1==(b>>c&1);this.modules[c%3+this.moduleCount-8-3][Math.floor(c/3)]=d}},setupTypeInfo:function(a,b){for(var c=this.errorCorrectLevel<<3|b,d=QRUtil.getBCHTypeInfo(c),e=0;15>e;e++){var f=!a&&1==(d>>e&1);6>e?this.modules[e][8]=f:8>e?this.modules[e+1][8]=f:this.modules[this.moduleCount-15+e][8]=f}for(var e=0;15>e;e++){var f=!a&&1==(d>>e&1);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){for(var c=-1,d=this.moduleCount-1,e=7,f=0,g=this.moduleCount-1;g>0;g-=2)for(6==g&&g--;;){for(var h=0;2>h;h++)if(null==this.modules[d][g-h]){var i=!1;f<a.length&&(i=1==(a[f]>>>e&1));var 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){for(var d=QRRSBlock.getRSBlocks(a,b),e=new QRBitBuffer,f=0;f<c.length;f++){var g=c[f];e.put(g.mode,4),e.put(g.getLength(),QRUtil.getLengthInBits(g.mode,a)),g.write(e)}for(var 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);e.getLengthInBits()%8!=0;)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){for(var c=0,d=0,e=0,f=new Array(b.length),g=new Array(b.length),h=0;h<b.length;h++){var i=b[h].dataCount,j=b[h].totalCount-i;d=Math.max(d,i),e=Math.max(e,j),f[h]=new Array(i);for(var k=0;k<f[h].length;k++)f[h][k]=255&a.buffer[k+c];c+=i;var l=QRUtil.getErrorCorrectPolynomial(j),m=new QRPolynomial(f[h],l.getLength()-1),n=m.mod(l);g[h]=new Array(l.getLength()-1);for(var k=0;k<g[h].length;k++){var o=k+n.getLength()-g[h].length;g[h][k]=o>=0?n.get(o):0}}for(var p=0,k=0;k<b.length;k++)p+=b[k].totalCount;for(var q=new Array(p),r=0,k=0;d>k;k++)for(var h=0;h<b.length;h++)k<f[h].length&&(q[r++]=f[h][k]);for(var k=0;e>k;k++)for(var h=0;h<b.length;h++)k<g[h].length&&(q[r++]=g[h][k]);return q};for(var 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(b+c)%2==0;case QRMaskPattern.PATTERN001:return b%2==0;case QRMaskPattern.PATTERN010:return c%3==0;case QRMaskPattern.PATTERN011:return(b+c)%3==0;case QRMaskPattern.PATTERN100:return(Math.floor(b/2)+Math.floor(c/3))%2==0;case QRMaskPattern.PATTERN101:return b*c%2+b*c%3==0;case QRMaskPattern.PATTERN110:return(b*c%2+b*c%3)%2==0;case QRMaskPattern.PATTERN111:return(b*c%3+(b+c)%2)%2==0;default:throw new Error("bad maskPattern:"+a)}},getErrorCorrectPolynomial:function(a){for(var b=new QRPolynomial([1],0),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){for(var b=a.getModuleCount(),c=0,d=0;b>d;d++)for(var e=0;b>e;e++){for(var f=0,g=a.isDark(d,e),h=-1;1>=h;h++)if(!(0>d+h||d+h>=b))for(var 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(var d=0;b-1>d;d++)for(var e=0;b-1>e;e++){var 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(var d=0;b>d;d++)for(var 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(var e=0;b>e;e++)for(var 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(var k=0,e=0;b>e;e++)for(var d=0;b>d;d++)a.isDark(d,e)&&k++;var l=Math.abs(100*k/b/b-50)/5;return 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(var 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(var 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){for(var b=new Array(this.getLength()+a.getLength()-1),c=0;c<this.getLength();c++)for(var 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){if(this.getLength()-a.getLength()<0)return this;for(var 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(var 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 c=QRRSBlock.getRsBlockTable(a,b);if(void 0==c)throw new Error("bad rs block @ typeNumber:"+a+"/errorCorrectLevel:"+b);for(var d=c.length/3,e=new Array,f=0;d>f;f++)for(var 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}},QRBitBuffer.prototype={get:function(a){var b=Math.floor(a/8);return 1==(this.buffer[b]>>>7-a%8&1)},put:function(a,b){for(var c=0;b>c;c++)this.putBit(1==(a>>>b-c-1&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++}},function(a){a.fn.qrcode=function(b){"string"==typeof b&&(b={text:b}),b=a.extend({},{render:"canvas",width:256,height:256,typeNumber:-1,correctLevel:QRErrorCorrectLevel.H,background:"#ffffff",foreground:"#000000"},b);var c=function(){var a=new QRCode(b.typeNumber,b.correctLevel);a.addData(b.text),a.make();var c=document.createElement("canvas");c.width=b.width,c.height=b.height;for(var d=c.getContext("2d"),e=b.width/a.getModuleCount(),f=b.height/a.getModuleCount(),g=0;g<a.getModuleCount();g++)for(var h=0;h<a.getModuleCount();h++){d.fillStyle=a.isDark(g,h)?b.foreground:b.background;var i=Math.ceil((h+1)*e)-Math.floor(h*e),j=Math.ceil((g+1)*e)-Math.floor(g*e);d.fillRect(Math.round(h*e),Math.round(g*f),i,j)}return c},d=function(){var c=new QRCode(b.typeNumber,b.correctLevel);c.addData(b.text),c.make();for(var 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(var 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};return this.each(function(){var e="canvas"==b.render?c():d();a(e).appendTo(this)})}}(jQuery); |