qrious - npm Package Compare versions

Comparing version 2.1.0 to 2.2.0

CHANGES.md

@@ -0,1 +1,5 @@
+## Version 2.2.0, 2016.10.30
+
+* Add `backgroundAlpha` and `foregroundAlpha` options to control transparency [#63](https://github.com/neocotic/qrious/issues/63)
+
 ## Version 2.1.0, 2016.10.04
@@ -2,0 +6,0 @@

dist/umd/qrious.min.js

@@ -1,7 +0,7 @@
-/*! QRious v2.1.0 | (C) 2016 Alasdair Mercer | GPL v3 License
+/*! QRious v2.2.0 | (C) 2016 Alasdair Mercer | GPL v3 License
 Based on jsqrencode | (C) 2010 [e-mail] | GPL v3 License
 */
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Math.max(0,n)}},{key:"render",value:function(t){this.resize(),this.reset(),this.draw(t)}},{key:"reset",value:function(){hi.throwUnimplemented("Renderer","reset")}},{key:"resize",value:function(){hi.throwUnimplemented("Renderer","resize")}}]),t}(),Ei=function(t){function e(){return lt(this,e),Yr(this,(e.__proto__||ct(e)).apply(this,arguments))}return ci(e,t),kt(e,[{key:"draw",value:function(t){var e=this.qrious,n=this.getModuleSize(t),r=this.getOffset(t),i=e.canvas.getContext("2d");i.fillStyle=e.foreground;for(var s=0;s<t.width;s++)for(var o=0;o<t.width;o++)t.buffer[o*t.width+s]&&i.fillRect(n*s+r,n*o+r,n,n)}},{key:"reset",value:function(){var t=this.qrious,e=t.canvas.getContext("2d");e.lineWidth=1,e.clearRect(0,0,t.size,t.size),e.fillStyle=t.background,e.fillRect(0,0,t.size,t.size)}},{key:"resize",value:function(){var t=this.qrious,e=t.canvas;e.width=t.size,e.height=t.size}}]),e}(Si),ji=function(){function t(){lt(this,t)}return kt(t,null,[{key:"BLOCK",get:function(){return[0,11,15,19,23,27,31,16,18,20,22,24,26,28,20,22,24,24,26,28,28,22,24,24,26,26,28,28,24,24,26,26,26,28,28,24,26,26,26,28,28]}}]),t}(),Li=function(){function t(){lt(this,t)}return kt(t,null,[{key:"BLOCKS",get:function(){return[1,0,19,7,1,0,16,10,1,0,13,13,1,0,9,17,1,0,34,10,1,0,28,16,1,0,22,22,1,0,16,28,1,0,55,15,1,0,44,26,2,0,17,18,2,0,13,22,1,0,80,20,2,0,32,18,2,0,24,26,4,0,9,16,1,0,108,26,2,0,43,24,2,2,15,18,2,2,11,22,2,0,68,18,4,0,27,16,4,0,19,24,4,0,15,28,2,0,78,20,4,0,31,18,2,4,14,18,4,1,13,26,2,0,97,24,2,2,38,22,4,2,18,22,4,2,14,26,2,0,116,30,3,2,36,22,4,4,16,20,4,4,12,24,2,2,68,18,4,1,43,26,6,2,19,24,6,2,15,28,4,0,81,20,1,4,50,30,4,4,22,28,3,8,12,24,2,2,92,24,6,2,36,22,4,6,20,26,7,4,14,28,4,0,107,26,8,1,37,22,8,4,20,24,12,4,11,22,3,1,115,30,4,5,40,24,11,5,16,20,11,5,12,24,5,1,87,22,5,5,41,24,5,7,24,30,11,7,12,24,5,1,98,24,7,3,45,28,15,2,19,24,3,13,15,30,1,5,107,28,10,1,46,28,1,15,22,28,2,17,14,28,5,1,120,30,9,4,43,26,17,1,22,28,2,19,14,28,3,4,113,28,3,11,44,26,17,4,21,26,9,16,13,26,3,5,107,28,3,13,41,26,15,5,24,30,15,10,15,28,4,4,116,28,17,0,42,26,17,6,22,28,19,6,16,30,2,7,111,28,17,0,46,28,7,16,24,30,34,0,13,24,4,5,121,30,4,14,47,28,11,14,24,30,16,14,15,30,6,4,117,30,6,14,45,28,11,16,24,30,30,2,16,30,8,4,106,26,8,13,47,28,7,22,24,30,22,13,15,30,10,2,114,28,19,4,46,28,28,6,22,28,33,4,16,30,8,4,122,30,22,3,45,28,8,26,23,30,12,28,15,30,3,10,117,30,3,23,45,28,4,31,24,30,11,31,15,30,7,7,116,30,21,7,45,28,1,37,23,30,19,26,15,30,5,10,115,30,19,10,47,28,15,25,24,30,23,25,15,30,13,3,115,30,2,29,46,28,42,1,24,30,23,28,15,30,17,0,115,30,10,23,46,28,10,35,24,30,19,35,15,30,17,1,115,30,14,21,46,28,29,19,24,30,11,46,15,30,13,6,115,30,14,23,46,28,44,7,24,30,59,1,16,30,12,7,121,30,12,26,47,28,39,14,24,30,22,41,15,30,6,14,121,30,6,34,47,28,46,10,24,30,2,64,15,30,17,4,122,30,29,14,46,28,49,10,24,30,24,46,15,30,4,18,122,30,13,32,46,28,48,14,24,30,42,32,15,30,20,4,117,30,40,7,47,28,43,22,24,30,10,67,15,30,19,6,118,30,18,31,47,28,34,34,24,30,20,61,15,30]}},{key:"FINAL_FORMAT",get:function(){return[30660,29427,32170,30877,26159,25368,27713,26998,21522,20773,24188,23371,17913,16590,20375,19104,13663,12392,16177,14854,9396,8579,11994,11245,5769,5054,7399,6608,1890,597,3340,2107]}},{key:"LEVELS",get:function(){return{L:1,M:2,Q:3,H:4}}}]),t}(),Ni=function(){function t(){lt(this,t)}return kt(t,null,[{key:"EXPONENT",get:function(){return[1,2,4,8,16,32,64,128,29,58,116,232,205,135,19,38,76,152,45,90,180,117,234,201,143,3,6,12,24,48,96,192,157,39,78,156,37,74,148,53,106,212,181,119,238,193,159,35,70,140,5,10,20,40,80,160,93,186,105,210,185,111,222,161,95,190,97,194,153,47,94,188,101,202,137,15,30,60,120,240,253,231,211,187,107,214,177,127,254,225,223,163,91,182,113,226,217,175,67,134,17,34,68,136,13,26,52,104,208,189,103,206,129,31,62,124,248,237,199,147,59,118,236,197,151,51,102,204,133,23,46,92,184,109,218,169,79,158,33,66,132,21,42,84,168,77,154,41,82,164,85,170,73,146,57,114,228,213,183,115,230,209,191,99,198,145,63,126,252,229,215,179,123,246,241,255,227,219,171,75,150,49,98,196,149,55,110,220,165,87,174,65,130,25,50,100,200,141,7,14,28,56,112,224,221,167,83,166,81,162,89,178,121,242,249,239,195,155,43,86,172,69,138,9,18,36,72,144,61,122,244,245,247,243,251,235,203,139,11,22,44,88,176,125,250,233,207,131,27,54,108,216,173,71,142,0]}},{key:"LOG",get:function(){return[255,0,1,25,2,50,26,198,3,223,51,238,27,104,199,75,4,100,224,14,52,141,239,129,28,193,105,248,200,8,76,113,5,138,101,47,225,36,15,33,53,147,142,218,240,18,130,69,29,181,194,125,106,39,249,185,201,154,9,120,77,228,114,166,6,191,139,98,102,221,48,253,226,152,37,179,16,145,34,136,54,208,148,206,143,150,219,189,241,210,19,92,131,56,70,64,30,66,182,163,195,72,126,110,107,58,40,84,250,133,186,61,202,94,155,159,10,21,121,43,78,212,229,172,115,243,167,87,7,112,192,247,140,128,99,13,103,74,222,237,49,197,254,24,227,165,153,119,38,184,180,124,17,68,146,217,35,32,137,46,55,63,209,91,149,188,207,205,144,135,151,178,220,252,190,97,242,86,211,171,20,42,93,158,132,60,57,83,71,109,65,162,31,45,67,216,183,123,164,118,196,23,73,236,127,12,111,246,108,161,59,82,41,157,85,170,251,96,134,177,187,204,62,90,203,89,95,176,156,169,160,81,11,245,22,235,122,117,44,215,79,174,213,233,230,231,173,232,116,214,244,234,168,80,88,175]}}]),t}(),Pi=function(){function t(){lt(this,t)}return kt(t,null,[{key:"BLOCK",get:function(){return[3220,1468,2713,1235,3062,1890,2119,1549,2344,2936,1117,2583,1330,2470,1667,2249,2028,3780,481,4011,142,3098,831,3445,592,2517,1776,2234,1951,2827,1070,2660,1345,3177]}}]),t}(),Ai=function(){function t(e){lt(this,t),this._badness=[],this._level=Li.LEVELS[e.level],this._polynomial=[],this._value=e.value,this._valueLength=this._value.length,this._version=0,this._stringBuffer=[];for(var n=void 0,r=void 0,i=void 0,s=void 0;this._version<40;){this._version++;var o=4*(this._level-1)+16*(this._version-1);if(i=Li.BLOCKS[o++],s=Li.BLOCKS[o++],n=Li.BLOCKS[o++],r=Li.BLOCKS[o],o=n*(i+s)+s-3+(this._version<=9),this._valueLength<=o)break}this._dataBlock=n,this._eccBlock=r,this._neccBlock1=i,this._neccBlock2=s,this.width=17+4*this._version,this.buffer=t._createArray(this.width*this.width),this._ecc=t._createArray(this._dataBlock+(this._dataBlock+this._eccBlock)*(this._neccBlock1+this._neccBlock2)+this._neccBlock2),this._mask=t._createArray((this.width*(this.width+1)+1)/2),this._insertFinders(),this._insertAlignments(),this.buffer[8+this.width*(this.width-8)]=1,this._insertTimingGap(),this._reverseMask(),this._insertTimingRowAndColumn(),this._insertVersion(),this._syncMask(),this._convertBitStream(this._value.length),this._calculatePolynomial(),this._appendEccToData(),this._interleaveBlocks(),this._pack(),this._finish()}return kt(t,null,[{key:"_createArray",value:function(t){for(var e=[],n=0;n<t;n++)e[n]=0;return e}},{key:"_getMaskBit",value:function(t,e){var n=void 0;return t>e&&(n=t,t=e,e=n),n=e,n+=e*e,n>>=1,n+=t}},{key:"_modN",value:function(t){for(;t>=255;)t-=255,t=(t>>8)+(255&t);return t}},{key:"N1",get:function(){return 3}},{key:"N2",get:function(){return 3}},{key:"N3",get:function(){return 40}},{key:"N4",get:function(){return 10}}]),kt(t,[{key:"_addAlignment",value:function(t,e){this.buffer[t+this.width*e]=1;for(var n=-2;n<2;n++)this.buffer[t+n+this.width*(e-2)]=1,this.buffer[t-2+this.width*(e+n+1)]=1,this.buffer[t+2+this.width*(e+n)]=1,this.buffer[t+n+1+this.width*(e+2)]=1;for(var r=0;r<2;r++)this._setMask(t-1,e+r),this._setMask(t+1,e-r),this._setMask(t-r,e-1),this._setMask(t+r,e+1)}},{key:"_appendData",value:function(e,n,r,i){for(var s=0;s<i;s++)this._stringBuffer[r+s]=0;for(var o=0;o<n;o++){var u=Ni.LOG[this._stringBuffer[e+o]^this._stringBuffer[r]];if(255!==u)for(var a=1;a<i;a++)this._stringBuffer[r+a-1]=this._stringBuffer[r+a]^Ni.EXPONENT[t._modN(u+this._polynomial[i-a])];else for(var f=r;f<r+i;f++)this._stringBuffer[f]=this._stringBuffer[f+1];this._stringBuffer[r+i-1]=255===u?0:Ni.EXPONENT[t._modN(u+this._polynomial[0])]}}},{key:"_appendEccToData",value:function(){for(var t=0,e=this._calculateMaxLength(),n=0;n<this._neccBlock1;n++)this._appendData(t,this._dataBlock,e,this._eccBlock),t+=this._dataBlock,e+=this._eccBlock;for(var r=0;r<this._neccBlock2;r++)this._appendData(t,this._dataBlock+1,e,this._eccBlock),t+=this._dataBlock+1,e+=this._eccBlock}},{key:"_applyMask",value:function(t){var e=this.width;switch(t){case 0:for(var n=0;n<e;n++)for(var r=0;r<e;r++)r+n&1||this._isMasked(r,n)||(this.buffer[r+n*e]^=1);break;case 1:for(var i=0;i<e;i++)for(var s=0;s<e;s++)1&i||this._isMasked(s,i)||(this.buffer[s+i*e]^=1);break;case 2:for(var o=0;o<e;o++)for(var u=0,a=0;a<e;a++,u++)3===u&&(u=0),u||this._isMasked(a,o)||(this.buffer[a+o*e]^=1);break;case 3:for(var f=0,c=0;c<e;c++,f++){3===f&&(f=0);for(var h=f,l=0;l<e;l++,h++)3===h&&(h=0),h||this._isMasked(l,c)||(this.buffer[l+c*e]^=1)}break;case 4:for(var _=0;_<e;_++)for(var v=0,d=_>>1&1,p=0;p<e;p++,v++)3===v&&(v=0,d=!d),d||this._isMasked(p,_)||(this.buffer[p+_*e]^=1);break;case 5:for(var y=0,k=0;k<e;k++,y++){3===y&&(y=0);for(var g=0,b=0;b<e;b++,g++)3===g&&(g=0),(b&k&1)+!(!g|!y)||this._isMasked(b,k)||(this.buffer[b+k*e]^=1)}break;case 6:for(var m=0,w=0;w<e;w++,m++){3===m&&(m=0);for(var B=0,O=0;O<e;O++,B++)3===B&&(B=0),(O&w&1)+(B&&B===m)&1||this._isMasked(O,w)||(this.buffer[O+w*e]^=1)}break;case 7:for(var M=0,S=0;S<e;S++,M++){3===M&&(M=0);for(var E=0,j=0;j<e;j++,E++)3===E&&(E=0),(E&&E===M)+(j+S&1)&1||this._isMasked(j,S)||(this.buffer[j+S*e]^=1)}}}},{key:"_calculateMaxLength",value:function(){return this._dataBlock*(this._neccBlock1+this._neccBlock2)+this._neccBlock2}},{key:"_calculatePolynomial",value:function(){this._polynomial[0]=1;for(var e=0;e<this._eccBlock;e++){this._polynomial[e+1]=1;for(var n=e;n>0;n--)this._polynomial[n]=this._polynomial[n]?this._polynomial[n-1]^Ni.EXPONENT[t._modN(Ni.LOG[this._polynomial[n]]+e)]:this._polynomial[n-1];this._polynomial[0]=Ni.EXPONENT[t._modN(Ni.LOG[this._polynomial[0]]+e)]}for(var r=0;r<=this._eccBlock;r++)this._polynomial[r]=Ni.LOG[this._polynomial[r]]}},{key:"_checkBadness",value:function(){for(var e=0,n=this.width,r=0;r<n-1;r++)for(var i=0;i<n-1;i++)(this.buffer[i+n*r]&&this.buffer[i+1+n*r]&&this.buffer[i+n*(r+1)]&&this.buffer[i+1+n*(r+1)]||!(this.buffer[i+n*r]||this.buffer[i+1+n*r]||this.buffer[i+n*(r+1)]||this.buffer[i+1+n*(r+1)]))&&(e+=t.N2);for(var s=0,o=0;o<n;o++){var u=0;this._badness[0]=0;for(var a=0,f=0;f<n;f++){var c=this.buffer[f+n*o];a===c?this._badness[u]++:this._badness[++u]=1,a=c,s+=a?1:-1}e+=this._getBadness(u)}s<0&&(s=-s);var h=0,l=s;for(l+=l<<2,l<<=1;l>n*n;)l-=n*n,h++;e+=h*t.N4;for(var _=0;_<n;_++){var v=0;this._badness[0]=0;for(var d=0,p=0;p<n;p++){var 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t(){lt(this,t)}return gt(t,null,[{key:"BLOCK",get:function(){return[3220,1468,2713,1235,3062,1890,2119,1549,2344,2936,1117,2583,1330,2470,1667,2249,2028,3780,481,4011,142,3098,831,3445,592,2517,1776,2234,1951,2827,1070,2660,1345,3177]}}]),t}(),Pi=function(){function t(e){lt(this,t),this._badness=[],this._level=ji.LEVELS[e.level],this._polynomial=[],this._value=e.value,this._valueLength=this._value.length,this._version=0,this._stringBuffer=[];for(var n=void 0,r=void 0,i=void 0,s=void 0;this._version<40;){this._version++;var o=4*(this._level-1)+16*(this._version-1);if(i=ji.BLOCKS[o++],s=ji.BLOCKS[o++],n=ji.BLOCKS[o++],r=ji.BLOCKS[o],o=n*(i+s)+s-3+(this._version<=9),this._valueLength<=o)break}this._dataBlock=n,this._eccBlock=r,this._neccBlock1=i,this._neccBlock2=s,this.width=17+4*this._version,this.buffer=t._createArray(this.width*this.width),this._ecc=t._createArray(this._dataBlock+(this._dataBlock+this._eccBlock)*(this._neccBlock1+this._neccBlock2)+this._neccBlock2),this._mask=t._createArray((this.width*(this.width+1)+1)/2),this._insertFinders(),this._insertAlignments(),this.buffer[8+this.width*(this.width-8)]=1,this._insertTimingGap(),this._reverseMask(),this._insertTimingRowAndColumn(),this._insertVersion(),this._syncMask(),this._convertBitStream(this._value.length),this._calculatePolynomial(),this._appendEccToData(),this._interleaveBlocks(),this._pack(),this._finish()}return gt(t,null,[{key:"_createArray",value:function(t){for(var e=[],n=0;n<t;n++)e[n]=0;return e}},{key:"_getMaskBit",value:function(t,e){var n=void 0;return t>e&&(n=t,t=e,e=n),n=e,n+=e*e,n>>=1,n+=t}},{key:"_modN",value:function(t){for(;t>=255;)t-=255,t=(t>>8)+(255&t);return t}},{key:"N1",get:function(){return 3}},{key:"N2",get:function(){return 3}},{key:"N3",get:function(){return 40}},{key:"N4",get:function(){return 10}}]),gt(t,[{key:"_addAlignment",value:function(t,e){this.buffer[t+this.width*e]=1;for(var n=-2;n<2;n++)this.buffer[t+n+this.width*(e-2)]=1,this.buffer[t-2+this.width*(e+n+1)]=1,this.buffer[t+2+this.width*(e+n)]=1,this.buffer[t+n+1+this.width*(e+2)]=1;for(var r=0;r<2;r++)this._setMask(t-1,e+r),this._setMask(t+1,e-r),this._setMask(t-r,e-1),this._setMask(t+r,e+1)}},{key:"_appendData",value:function(e,n,r,i){for(var s=0;s<i;s++)this._stringBuffer[r+s]=0;for(var o=0;o<n;o++){var u=Li.LOG[this._stringBuffer[e+o]^this._stringBuffer[r]];if(255!==u)for(var a=1;a<i;a++)this._stringBuffer[r+a-1]=this._stringBuffer[r+a]^Li.EXPONENT[t._modN(u+this._polynomial[i-a])];else for(var f=r;f<r+i;f++)this._stringBuffer[f]=this._stringBuffer[f+1];this._stringBuffer[r+i-1]=255===u?0:Li.EXPONENT[t._modN(u+this._polynomial[0])]}}},{key:"_appendEccToData",value:function(){for(var t=0,e=this._calculateMaxLength(),n=0;n<this._neccBlock1;n++)this._appendData(t,this._dataBlock,e,this._eccBlock),t+=this._dataBlock,e+=this._eccBlock;for(var r=0;r<this._neccBlock2;r++)this._appendData(t,this._dataBlock+1,e,this._eccBlock),t+=this._dataBlock+1,e+=this._eccBlock}},{key:"_applyMask",value:function(t){var e=this.width;switch(t){case 0:for(var n=0;n<e;n++)for(var r=0;r<e;r++)r+n&1||this._isMasked(r,n)||(this.buffer[r+n*e]^=1);break;case 1:for(var i=0;i<e;i++)for(var s=0;s<e;s++)1&i||this._isMasked(s,i)||(this.buffer[s+i*e]^=1);break;case 2:for(var o=0;o<e;o++)for(var u=0,a=0;a<e;a++,u++)3===u&&(u=0),u||this._isMasked(a,o)||(this.buffer[a+o*e]^=1);break;case 3:for(var f=0,c=0;c<e;c++,f++){3===f&&(f=0);for(var h=f,l=0;l<e;l++,h++)3===h&&(h=0),h||this._isMasked(l,c)||(this.buffer[l+c*e]^=1)}break;case 4:for(var _=0;_<e;_++)for(var d=0,v=_>>1&1,p=0;p<e;p++,d++)3===d&&(d=0,v=!v),v||this._isMasked(p,_)||(this.buffer[p+_*e]^=1);break;case 5:for(var y=0,g=0;g<e;g++,y++){3===y&&(y=0);for(var k=0,b=0;b<e;b++,k++)3===k&&(k=0),(b&g&1)+!(!k|!y)||this._isMasked(b,g)||(this.buffer[b+g*e]^=1)}break;case 6:for(var m=0,w=0;w<e;w++,m++){3===m&&(m=0);for(var B=0,O=0;O<e;O++,B++)3===B&&(B=0),(O&w&1)+(B&&B===m)&1||this._isMasked(O,w)||(this.buffer[O+w*e]^=1)}break;case 7:for(var M=0,S=0;S<e;S++,M++){3===M&&(M=0);for(var E=0,A=0;A<e;A++,E++)3===E&&(E=0),(E&&E===M)+(A+S&1)&1||this._isMasked(A,S)||(this.buffer[A+S*e]^=1)}}}},{key:"_calculateMaxLength",value:function(){return this._dataBlock*(this._neccBlock1+this._neccBlock2)+this._neccBlock2}},{key:"_calculatePolynomial",value:function(){this._polynomial[0]=1;for(var e=0;e<this._eccBlock;e++){this._polynomial[e+1]=1;for(var n=e;n>0;n--)this._polynomial[n]=this._polynomial[n]?this._polynomial[n-1]^Li.EXPONENT[t._modN(Li.LOG[this._polynomial[n]]+e)]:this._polynomial[n-1];this._polynomial[0]=Li.EXPONENT[t._modN(Li.LOG[this._polynomial[0]]+e)]}for(var r=0;r<=this._eccBlock;r++)this._polynomial[r]=Li.LOG[this._polynomial[r]]}},{key:"_checkBadness",value:function(){for(var e=0,n=this.width,r=0;r<n-1;r++)for(var i=0;i<n-1;i++)(this.buffer[i+n*r]&&this.buffer[i+1+n*r]&&this.buffer[i+n*(r+1)]&&this.buffer[i+1+n*(r+1)]||!(this.buffer[i+n*r]||this.buffer[i+1+n*r]||this.buffer[i+n*(r+1)]||this.buffer[i+1+n*(r+1)]))&&(e+=t.N2);for(var s=0,o=0;o<n;o++){var u=0;this._badness[0]=0;for(var a=0,f=0;f<n;f++){var c=this.buffer[f+n*o];a===c?this._badness[u]++:this._badness[++u]=1,a=c,s+=a?1:-1}e+=this._getBadness(u)}s<0&&(s=-s);var h=0,l=s;for(l+=l<<2,l<<=1;l>n*n;)l-=n*n,h++;e+=h*t.N4;for(var _=0;_<n;_++){var d=0;this._badness[0]=0;for(var v=0,p=0;p<n;p++){var y=this.buffer[_+n*p];v===y?this._badness[d]++:this._badness[++d]=1,v=y}e+=this._getBadness(d)}return e}},{key:"_convertBitStream",value:function(t){for(var e=0;e<t;e++)this._ecc[e]=this._value.charCodeAt(e);this._stringBuffer=this._ecc.slice(0);var n=this._calculateMaxLength();t>=n-2&&(t=n-2,this._version>9&&t--);var r=t;if(this._version>9){for(this._stringBuffer[r+2]=0,this._stringBuffer[r+3]=0;r--;){var i=this._stringBuffer[r];this._stringBuffer[r+3]|=255&i<<4,this._stringBuffer[r+2]=i>>4}this._stringBuffer[2]|=255&t<<4,this._stringBuffer[1]=t>>4,this._stringBuffer[0]=64|t>>12}else{for(this._stringBuffer[r+1]=0,this._stringBuffer[r+2]=0;r--;){var s=this._stringBuffer[r];this._stringBuffer[r+2]|=255&s<<4,this._stringBuffer[r+1]=s>>4}this._stringBuffer[1]|=255&t<<4,this._stringBuffer[0]=64|t>>4}for(r=t+3-(this._version<10);r<n;)this._stringBuffer[r++]=236,this._stringBuffer[r++]=17}},{key:"_getBadness",value:function(e){for(var n=0,r=0;r<=e;r++)this._badness[r]>=5&&(n+=t.N1+this._badness[r]-5);for(var i=3;i<e-1;i+=2)this._badness[i-2]===this._badness[i+2]&&this._badness[i+2]===this._badness[i-1]&&this._badness[i-1]===this._badness[i+1]&&3*this._badness[i-1]===this._badness[i]&&(0===this._badness[i-3]||i+3>e||3*this._badness[i-3]>=4*this._badness[i]||3*this._badness[i+3]>=4*this._badness[i])&&(n+=t.N3);return n}},{key:"_finish",value:function(){this._stringBuffer=this.buffer.slice(0);var t=0,e=void 0,n=3e4;for(e=0;e<8;e++){this._applyMask(e);var r=this._checkBadness();if(r<n&&(n=r,t=e),7===t)break;this.buffer=this._stringBuffer.slice(0)}for(t!==e&&this._applyMask(t),n=ji.FINAL_FORMAT[t+(this._level-1<<3)],e=0;e<8;e++,n>>=1)1&n&&(this.buffer[this.width-1-e+8*this.width]=1,e<6?this.buffer[8+this.width*e]=1:this.buffer[8+this.width*(e+1)]=1);for(e=0;e<7;e++,n>>=1)1&n&&(this.buffer[8+this.width*(this.width-7+e)]=1,e?this.buffer[6-e+8*this.width]=1:this.buffer[7+8*this.width]=1)}},{key:"_interleaveBlocks",value:function(){var t=this._calculateMaxLength(),e=void 0,n=0;for(e=0;e<this._dataBlock;e++){for(var r=0;r<this._neccBlock1;r++)this._ecc[n++]=this._stringBuffer[e+r*this._dataBlock];for(var i=0;i<this._neccBlock2;i++)this._ecc[n++]=this._stringBuffer[this._neccBlock1*this._dataBlock+e+i*(this._dataBlock+1)]}for(var s=0;s<this._neccBlock2;s++)this._ecc[n++]=this._stringBuffer[this._neccBlock1*this._dataBlock+e+s*(this._dataBlock+1)];for(e=0;e<this._eccBlock;e++)for(var o=0;o<this._neccBlock1+this._neccBlock2;o++)this._ecc[n++]=this._stringBuffer[t+e+o*this._eccBlock];this._stringBuffer=this._ecc}},{key:"_insertAlignments",value:function(){var t=this.width;if(this._version>1)for(var e=Ai.BLOCK[this._version],n=t-7;;){for(var r=t-7;r>e-3&&(this._addAlignment(r,n),!(r<e));)r-=e;if(n<=e+9)break;n-=e,this._addAlignment(6,n),this._addAlignment(n,6)}}},{key:"_insertFinders",value:function(){for(var t=this.width,e=0;e<3;e++){var n=0,r=0;1===e&&(n=t-7),2===e&&(r=t-7),this.buffer[r+3+t*(n+3)]=1;for(var i=0;i<6;i++)this.buffer[r+i+t*n]=1,this.buffer[r+t*(n+i+1)]=1,this.buffer[r+6+t*(n+i)]=1,this.buffer[r+i+1+t*(n+6)]=1;for(var s=1;s<5;s++)this._setMask(r+s,n+1),
+this._setMask(r+1,n+s+1),this._setMask(r+5,n+s),this._setMask(r+s+1,n+5);for(var o=2;o<4;o++)this.buffer[r+o+t*(n+2)]=1,this.buffer[r+2+t*(n+o+1)]=1,this.buffer[r+4+t*(n+o)]=1,this.buffer[r+o+1+t*(n+4)]=1}}},{key:"_insertTimingGap",value:function(){for(var t=this.width,e=0;e<7;e++)this._setMask(7,e),this._setMask(t-8,e),this._setMask(7,e+t-7);for(var n=0;n<8;n++)this._setMask(n,7),this._setMask(n+t-8,7),this._setMask(n,t-8)}},{key:"_insertTimingRowAndColumn",value:function(){for(var t=this.width,e=0;e<t-14;e++)1&e?(this._setMask(8+e,6),this._setMask(6,8+e)):(this.buffer[8+e+6*t]=1,this.buffer[6+t*(8+e)]=1)}},{key:"_insertVersion",value:function(){var t=this.width;if(this._version>6)for(var e=Ni.BLOCK[this._version-7],n=17,r=0;r<6;r++)for(var i=0;i<3;i++,n--)1&(n>11?this._version>>n-12:e>>n)?(this.buffer[5-r+t*(2-i+t-11)]=1,this.buffer[2-i+t-11+t*(5-r)]=1):(this._setMask(5-r,2-i+t-11),this._setMask(2-i+t-11,5-r))}},{key:"_isMasked",value:function(e,n){var r=t._getMaskBit(e,n);return 1===this._mask[r]}},{key:"_pack",value:function(){for(var t=this.width-1,e=this.width-1,n=1,r=1,i=(this._dataBlock+this._eccBlock)*(this._neccBlock1+this._neccBlock2)+this._neccBlock2,s=0;s<i;s++)for(var o=this._stringBuffer[s],u=0;u<8;u++,o<<=1){128&o&&(this.buffer[t+this.width*e]=1);do r?t--:(t++,n?0!==e?e--:(t-=2,n=!n,6===t&&(t--,e=9)):e!==this.width-1?e++:(t-=2,n=!n,6===t&&(t--,e-=8))),r=!r;while(this._isMasked(t,e))}}},{key:"_reverseMask",value:function(){for(var t=this.width,e=0;e<9;e++)this._setMask(e,8);for(var n=0;n<8;n++)this._setMask(n+t-8,8),this._setMask(8,n);for(var r=0;r<7;r++)this._setMask(8,r+t-7)}},{key:"_setMask",value:function(e,n){var r=t._getMaskBit(e,n);this._mask[r]=1}},{key:"_syncMask",value:function(){for(var t=this.width,e=0;e<t;e++)for(var n=0;n<=e;n++)this.buffer[n+t*e]&&this._setMask(n,e)}}]),t}(),Ti=function(t){function e(){return lt(this,e),Yr(this,(e.__proto__||ct(e)).apply(this,arguments))}return ci(e,t),gt(e,[{key:"draw",value:function(){var t=this.qrious;t.image.src=t.toDataURL()}},{key:"reset",value:function(){var t=this.qrious;t.image.src=""}},{key:"resize",value:function(){var t=this.qrious,e=t.image;e.width=t.size,e.height=t.size}}]),e}(Si),Ci=function(){function t(){lt(this,t),this._services={}}return gt(t,[{key:"getService",value:function(t){var e=this._services[t];if(!e)throw new Error("Service is not being managed with name: "+t);return e}},{key:"setService",value:function(t,e){if(this._services[t])throw new Error("Service is already managed with name: "+t);e&&(this._services[t]=e)}}]),t}(),Fi=function(){function t(e){lt(this,t),e=t._parseOptions(e),hi.privatize(this,e);var n=this._element,r=t._serviceManager.getService("element");this.canvas=n&&r.isCanvas(n)?n:r.createCanvas(),this.canvas.qrious=this,this.image=n&&r.isImage(n)?n:r.createImage(),this.image.qrious=this,this._renderers=[new Ei(this),new Ti(this)],this.update()}return gt(t,null,[{key:"use",value:function(e){t._serviceManager.setService(e.getName(),e)}},{key:"_parseOptions",value:function(e){return e=Mi({},t.DEFAULTS,e),e.backgroundAlpha=hi.abs(e.backgroundAlpha),e.foregroundAlpha=hi.abs(e.foregroundAlpha),e.level=hi.toUpperCase(e.level),e.padding=hi.abs(e.padding),e.size=hi.abs(e.size),e}},{key:"DEFAULTS",get:function(){return{background:"white",backgroundAlpha:1,foreground:"black",foregroundAlpha:1,level:"L",mime:"image/png",padding:null,size:100,value:""}}},{key:"VERSION",get:function(){return"2.2.0"}}]),gt(t,[{key:"toDataURL",value:function(t){return this.canvas.toDataURL(t||this.mime)}},{key:"update",value:function(){var t=new Pi({level:this.level,value:this.value});this._renderers.forEach(function(e){return e.render(t)})}},{key:"background",get:function(){return this._background},set:function(e){var n=hi.setter(this,"_background",e,t.DEFAULTS.background);n&&this.update()}},{key:"backgroundAlpha",get:function(){return this._backgroundAlpha},set:function(e){var n=hi.setter(this,"_backgroundAlpha",e,t.DEFAULTS.backgroundAlpha);n&&this.update()}},{key:"foreground",get:function(){return this._foreground},set:function(e){var n=hi.setter(this,"_foreground",e,t.DEFAULTS.foreground);n&&this.update()}},{key:"foregroundAlpha",get:function(){return this._foregroundAlpha},set:function(e){var n=hi.setter(this,"_foregroundAlpha",e,t.DEFAULTS.foregroundAlpha);n&&this.update()}},{key:"level",get:function(){return this._level},set:function(e){var n=hi.setter(this,"_level",e,t.DEFAULTS.level,hi.toUpperCase);n&&this.update()}},{key:"mime",get:function(){return this._mime},set:function(e){var n=hi.setter(this,"_mime",e,t.DEFAULTS.mime);n&&this.update()}},{key:"padding",get:function(){return this._padding},set:function(e){var n=hi.setter(this,"_padding",e,t.DEFAULTS.padding,hi.abs);n&&this.update()}},{key:"size",get:function(){return this._size},set:function(e){var n=hi.setter(this,"_size",e,t.DEFAULTS.size,hi.abs);n&&this.update()}},{key:"value",get:function(){return this._value},set:function(e){var n=hi.setter(this,"_value",e,t.DEFAULTS.value);n&&this.update()}}]),t}();return Fi._serviceManager=new Ci,Fi.use(new di),Fi});
 
 //# sourceMappingURL=qrious.min.js.map

package.json

 {
   "name": "qrious",
-  "version": "2.1.0",
+  "version": "2.2.0",
   "description": "Library for QR code generation using canvas",
@@ -5,0 +5,0 @@ "homepage": "https://github.com/neocotic/qrious",

README.md

@@ -108,11 +108,13 @@ .oooooo.      ooooooooo.    o8o
 
-| Field      | Type   | Description                                        | Default       |
-| ---------- | ------ | -------------------------------------------------- | ------------- |
-| background | String | Background color of the QR code                    | `"white"`     |
-| foreground | String | Foreground color of the QR code                    | `"black"`     |
-| level      | String | Error correction level of the QR code (L, M, Q, H) | `"L"`         |
-| mime       | String | MIME type used to render the image for the QR code | `"image/png"` |
-| padding    | Number | Padding for the QR code (pixels)                   | `null` (auto) |
-| size       | Number | Size of the QR code (pixels)                       | `100`         |
-| value      | String | Value encoded within the QR code                   | `""`          |
+| Field           | Type   | Description                                        | Default       |
+| --------------- | ------ | -------------------------------------------------- | ------------- |
+| background      | String | Background color of the QR code                    | `"white"`     |
+| backgroundAlpha | Number | Background alpha of the QR code                    | `1.0`         |
+| foreground      | String | Foreground color of the QR code                    | `"black"`     |
+| foregroundAlpha | Number | Foreground alpha of the QR code                    | `1.0`         |
+| level           | String | Error correction level of the QR code (L, M, Q, H) | `"L"`         |
+| mime            | String | MIME type used to render the image for the QR code | `"image/png"` |
+| padding         | Number | Padding for the QR code (pixels)                   | `null` (auto) |
+| size            | Number | Size of the QR code (pixels)                       | `100`         |
+| value           | String | Value encoded within the QR code                   | `""`          |
 
@@ -122,3 +124,5 @@ ``` javascript
 qr.background = '#000'
+qr.backgroundAlpha = 0.8
 qr.foreground = '#fff'
+qr.foregroundAlpha = 0.8
 qr.level = 'H'
@@ -135,3 +139,5 @@ qr.padding = 25
   background: '#000',
+  backgroundAlpha: 0.8,
   foreground: '#fff',
+  foregroundAlpha: 0.8,
   level: 'H',
@@ -193,3 +199,3 @@ padding: 25,
 console.log(QRious.VERSION)
-//=> "2.1.0"
+//=> "2.2.0"
 ```
@@ -196,0 +202,0 @@

src/QRious.js

@@ -43,3 +43,5 @@ /*
       background: 'white',
+      backgroundAlpha: 1,
       foreground: 'black',
+      foregroundAlpha: 1,
       level: 'L',
@@ -61,3 +63,3 @@ mime: 'image/png',
   static get VERSION() {
-    return '2.1.0'
+    return '2.2.0'
   }
@@ -80,2 +82,4 @@
     options = Object.assign({}, QRious.DEFAULTS, options)
+    options.backgroundAlpha = Utilities.abs(options.backgroundAlpha)
+    options.foregroundAlpha = Utilities.abs(options.foregroundAlpha)
     options.level = Utilities.toUpperCase(options.level)
@@ -179,2 +183,26 @@ options.padding = Utilities.abs(options.padding)
   /**
+   * Returns the background alpha for the QR code.
+   *
+   * @return {number} The background alpha.
+   * @public
+   */
+  get backgroundAlpha() {
+    return this._backgroundAlpha
+  }
+
+  /**
+   * Sets the background alpha for the QR code to <code>backgroundAlpha</code>.
+   *
+   * @param {number} [backgroundAlpha=1] - the background alpha to be set
+   * @public
+   */
+  set backgroundAlpha(backgroundAlpha) {
+    const changed = Utilities.setter(this, '_backgroundAlpha', backgroundAlpha, QRious.DEFAULTS.backgroundAlpha)
+
+    if (changed) {
+      this.update()
+    }
+  }
+
+  /**
    * Returns the foreground color for the QR code.
@@ -204,2 +232,26 @@ *
   /**
+   * Returns the foreground alpha for the QR code.
+   *
+   * @return {number} The foreground alpha.
+   * @public
+   */
+  get foregroundAlpha() {
+    return this._foregroundAlpha
+  }
+
+  /**
+   * Sets the foreground alpha for the QR code to <code>foregroundAlpha</code>.
+   *
+   * @param {number} [foregroundAlpha=1] - the foreground alpha to be set
+   * @public
+   */
+  set foregroundAlpha(foregroundAlpha) {
+    const changed = Utilities.setter(this, '_foregroundAlpha', foregroundAlpha, QRious.DEFAULTS.foregroundAlpha)
+
+    if (changed) {
+      this.update()
+    }
+  }
+
+  /**
    * Returns the error correction level for the QR code.
@@ -343,5 +395,7 @@ *
  * @property {string} [background="white"] - The background color to be applied to the QR code.
+ * @property {number} [backgroundAlpha=1] - The background alpha to be applied to the QR code.
  * @property {*} [element] - The element to be used to render the QR code which may either be an <code>canvas</code> or
  * <code>img</code>. The element(s) will be created if needed.
  * @property {string} [foreground="black"] - The foreground color to be applied to the QR code.
+ * @property {number} [foregroundAlpha=1] - The foreground alpha to be applied to the QR code.
  * @property {string} [level="L"] - The error correction level to be applied to the QR code.
@@ -348,0 +402,0 @@ * @property {string} [mime="image/png"] - The MIME type to be used to render the image for the QR code.

src/renderer/CanvasRenderer.js

@@ -40,2 +40,3 @@ /*
     context.fillStyle = qrious.foreground
+    context.globalAlpha = qrious.foregroundAlpha
 
@@ -61,2 +62,3 @@ for (let i = 0; i < frame.width; i++) {
     context.fillStyle = qrious.background
+    context.globalAlpha = qrious.backgroundAlpha
     context.fillRect(0, 0, qrious.size, qrious.size)
@@ -63,0 +65,0 @@ }

No alert changes

Improved metrics

Total package byte prevSize

927878

increased by1.64%

Number of package files

28

increased by3.7%

Lines of code

8572

increased by1.97%

Number of lines in readme file

229

increased by2.69%

No dependency changes