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- 'use strict';Object.defineProperty(exports,"__esModule",{value:!0});var _createClass=function(){function a(a,b){for(var c,d=0;d<b.length;d++)c=b[d],c.enumerable=c.enumerable||!1,c.configurable=!0,"value"in c&&(c.writable=!0),Object.defineProperty(a,c.key,c)}return function(b,c,d){return c&&a(b.prototype,c),d&&a(b,d),b}}();function _classCallCheck(a,b){if(!(a instanceof b))throw new TypeError("Cannot call a class as a function")}if(!pv)var pv={map:function(a,b){var c={};return b?a.map(function(a,d){return c.index=d,b.call(c,a)}):a.slice()},naturalOrder:function(c,a){return c<a?-1:c>a?1:0},sum:function(a,b){var c={};return a.reduce(b?function(a,e,d){return c.index=d,a+b.call(c,e)}:function(a,b){return a+b},0)},max:function(a,b){return Math.max.apply(null,b?pv.map(a,b):a)}};var MMCQ=function(){function a(a,c,d){return(a<<10)+(c<<5)+d}function b(a){function b(){c.sort(a),d=!0}var c=[],d=!1;return{push:function(a){c.push(a),d=!1},peek:function(a){return d||b(),void 0===a&&(a=c.length-1),c[a]},pop:function(){return d||b(),c.pop()},size:function(){return c.length},map:function(a){return c.map(a)},debug:function(){return d||b(),c}}}function c(a,b,c,d,e,f,g){var h=this;h.r1=a,h.r2=b,h.g1=c,h.g2=d,h.b1=e,h.b2=f,h.histo=g}function d(){this.vboxes=new b(function(c,a){return pv.naturalOrder(c.vbox.count()*c.vbox.volume(),a.vbox.count()*a.vbox.volume())})}function e(b){var c,d,e,f,g=Array(32768);return b.forEach(function(b){d=b[0]>>3,e=b[1]>>3,f=b[2]>>3,c=a(d,e,f),g[c]=(g[c]||0)+1}),g}function f(a,b){var d,e,f,g=1e6,h=0,i=1e6,j=0,k=1e6,l=0;return a.forEach(function(a){d=a[0]>>3,e=a[1]>>3,f=a[2]>>3,d<g?g=d:d>h&&(h=d),e<i?i=e:e>j&&(j=e),f<k?k=f:f>l&&(l=f)}),new c(g,h,i,j,k,l,b)}function g(b,c){function d(a){var b,d,e,f,g,h=a+"1",i=a+"2",j=0;for(l=c[h];l<=c[i];l++)if(r[l]>q/2){for(e=c.copy(),f=c.copy(),b=l-c[h],d=c[i]-l,g=b<=d?Math.min(c[i]-1,~~(l+d/2)):Math.max(c[h],~~(l-1-b/2));!r[g];)g++;for(j=s[g];!j&&r[g-1];)j=s[--g];return e[i]=g,f[h]=e[i]+1,[e,f]}}if(c.count()){var e=c.r2-c.r1+1,f=c.g2-c.g1+1,g=c.b2-c.b1+1,h=pv.max([e,f,g]);if(1==c.count())return[c.copy()];var l,m,n,o,p,q=0,r=[],s=[];if(h==e)for(l=c.r1;l<=c.r2;l++){for(o=0,m=c.g1;m<=c.g2;m++)for(n=c.b1;n<=c.b2;n++)p=a(l,m,n),o+=b[p]||0;q+=o,r[l]=q}else if(h==f)for(l=c.g1;l<=c.g2;l++){for(o=0,m=c.r1;m<=c.r2;m++)for(n=c.b1;n<=c.b2;n++)p=a(m,l,n),o+=b[p]||0;q+=o,r[l]=q}else for(l=c.b1;l<=c.b2;l++){for(o=0,m=c.r1;m<=c.r2;m++)for(n=c.g1;n<=c.g2;n++)p=a(m,n,l),o+=b[p]||0;q+=o,r[l]=q}return r.forEach(function(a,b){s[b]=q-a}),h==e?d("r"):h==f?d("g"):d("b")}}return c.prototype={volume:function(a){var b=this;return(!b._volume||a)&&(b._volume=(b.r2-b.r1+1)*(b.g2-b.g1+1)*(b.b2-b.b1+1)),b._volume},count:function(b){var c=this,d=c.histo;if(!c._count_set||b){var e,f,g,h,l=0;for(f=c.r1;f<=c.r2;f++)for(g=c.g1;g<=c.g2;g++)for(h=c.b1;h<=c.b2;h++)e=a(f,g,h),l+=d[e]||0;c._count=l,c._count_set=!0}return c._count},copy:function(){var a=this;return new c(a.r1,a.r2,a.g1,a.g2,a.b1,a.b2,a.histo)},avg:function(b){var c=this,d=c.histo;if(!c._avg||b){var e,f,g,h,l,m=0,n=0,o=0,p=0;for(f=c.r1;f<=c.r2;f++)for(g=c.g1;g<=c.g2;g++)for(h=c.b1;h<=c.b2;h++)l=a(f,g,h),e=d[l]||0,m+=e,n+=8*(e*(f+.5)),o+=8*(e*(g+.5)),p+=8*(e*(h+.5));c._avg=m?[~~(n/m),~~(o/m),~~(p/m)]:[~~(8*(c.r1+c.r2+1)/2),~~(8*(c.g1+c.g2+1)/2),~~(8*(c.b1+c.b2+1)/2)]}return c._avg},contains:function(a){var b=this,c=a[0]>>3;return gval=a[1]>>3,bval=a[2]>>3,c>=b.r1&&c<=b.r2&&gval>=b.g1&&gval<=b.g2&&bval>=b.b1&&bval<=b.b2}},d.prototype={push:function(a){this.vboxes.push({vbox:a,color:a.avg()})},palette:function(){return this.vboxes.map(function(a){return a.color})},size:function(){return this.vboxes.size()},map:function(a){for(var b=this.vboxes,c=0;c<b.size();c++)if(b.peek(c).vbox.contains(a))return b.peek(c).color;return this.nearest(a)},nearest:function(a){for(var b,c,d,e=Math.pow,f=this.vboxes,g=0;g<f.size();g++)c=Math.sqrt(e(a[0]-f.peek(g).color[0],2)+e(a[1]-f.peek(g).color[1],2)+e(a[2]-f.peek(g).color[2],2)),(c<b||void 0===b)&&(b=c,d=f.peek(g).color);return d},forcebw:function(){var a=this.vboxes;a.sort(function(c,a){return pv.naturalOrder(pv.sum(c.color),pv.sum(a.color))});var b=a[0].color;5>b[0]&&5>b[1]&&5>b[2]&&(a[0].color=[0,0,0]);var c=a.length-1,d=a[c].color;251<d[0]&&251<d[1]&&251<d[2]&&(a[c].color=[255,255,255])}},{quantize:function(a,c){function h(a,b){for(var c,d=1,e=0;1000>e;){if(c=a.pop(),!c.count()){a.push(c),e++;continue}var f=g(i,c),h=f[0],j=f[1];if(!h)return;if(a.push(h),j&&(a.push(j),d++),d>=b)return;if(1000<e++)return}}if(!a.length||2>c||256<c)return!1;var i=e(a),j=0;i.forEach(function(){j++}),j<=c;var k=f(a,i),l=new b(function(c,a){return pv.naturalOrder(c.count(),a.count())});l.push(k),h(l,.75*c);for(var m=new b(function(c,a){return pv.naturalOrder(c.count()*c.volume(),a.count()*a.volume())});l.size();)m.push(l.pop());h(m,c-m.size());for(var n=new d;m.size();)n.push(m.pop());return n}}}(),ColorAnalysis=function(){function a(b){_classCallCheck(this,a),this.canvasId=b}return _createClass(a,[{key:"getPalette",value:function(a,c){var b=this,d=a.width,e=a.height,f=a.imgPath,h=a.maxColors,j=a.step;("undefined"==typeof h||2>h)&&(h=2),256<h&&(h=10),("undefined"==typeof j||1>j)&&(j=10);var g=uni.createCanvasContext(this.canvasId);g.drawImage(f,0,0,d,e),g.draw(!1,function(){uni.canvasGetImageData({canvasId:b.canvasId,x:0,y:0,width:d,height:e,success:function(f){for(var k,l,m,n,o,p=f.data,q=[],s=0;s<d*e;s+=j)k=4*s,l=p[k+0],m=p[k+1],n=p[k+2],o=p[k+3],125<=o&&!(250<l&&250<m&&250<n)&&q.push([l,m,n]);var t=MMCQ.quantize(q,h),u=t?t.palette():null;c&&c(u)}})})}}]),a}();exports.default=ColorAnalysis;
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