Michael Peter Christen
11 years ago
parent
dc38d35986
commit
16e3b357b3
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/*!
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* jquery.tagcloud.js
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* A Simple Tag Cloud Plugin for JQuery
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*
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* https://github.com/addywaddy/jquery.tagcloud.js
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* created by Adam Groves
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*/
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(function($) {
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/*global jQuery*/
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"use strict";
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var compareWeights = function(a, b)
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{
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return a - b;
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};
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// Converts hex to an RGB array
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var toRGB = function(code) {
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if (code.length === 4) {
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code = code.replace(/(\w)(\w)(\w)/gi, "\$1\$1\$2\$2\$3\$3");
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}
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var hex = /(\w{2})(\w{2})(\w{2})/.exec(code);
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return [parseInt(hex[1], 16), parseInt(hex[2], 16), parseInt(hex[3], 16)];
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};
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// Converts an RGB array to hex
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var toHex = function(ary) {
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return "#" + jQuery.map(ary, function(i) {
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var hex = i.toString(16);
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hex = (hex.length === 1) ? "0" + hex : hex;
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return hex;
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}).join("");
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};
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var colorIncrement = function(color, range) {
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return jQuery.map(toRGB(color.end), function(n, i) {
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return (n - toRGB(color.start)[i])/range;
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});
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};
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var tagColor = function(color, increment, weighting) {
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var rgb = jQuery.map(toRGB(color.start), function(n, i) {
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var ref = Math.round(n + (increment[i] * weighting));
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if (ref > 255) {
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ref = 255;
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} else {
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if (ref < 0) {
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ref = 0;
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}
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}
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return ref;
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});
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return toHex(rgb);
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};
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$.fn.tagcloud = function(options) {
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var opts = $.extend({}, $.fn.tagcloud.defaults, options);
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var tagWeights = this.map(function(){
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return $(this).attr("rel");
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});
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tagWeights = jQuery.makeArray(tagWeights).sort(compareWeights);
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var lowest = tagWeights[0];
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var highest = tagWeights.pop();
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var range = highest - lowest;
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if(range === 0) {range = 1;}
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// Sizes
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var fontIncr, colorIncr;
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if (opts.size) {
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fontIncr = (opts.size.end - opts.size.start)/range;
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}
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// Colors
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if (opts.color) {
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colorIncr = colorIncrement (opts.color, range);
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}
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return this.each(function() {
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var weighting = $(this).attr("rel") - lowest;
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if (opts.size) {
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$(this).css({"font-size": opts.size.start + (weighting * fontIncr) + opts.size.unit});
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}
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if (opts.color) {
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$(this).css({"color": tagColor(opts.color, colorIncr, weighting)});
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}
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});
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};
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$.fn.tagcloud.defaults = {
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size: {start: 14, end: 18, unit: "pt"}
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};
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})(jQuery);
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@ -1,8 +0,0 @@
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/*
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* jQuery TagCloud 0.5.0
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* Copyright (c) 2008 Ron Valstar
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* Dual licensed under the MIT and GPL licenses:
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* http://www.opensource.org/licenses/mit-license.php
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* http://www.gnu.org/licenses/gpl.html
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*/
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(function(F){var C;var A={};var G={};var L=2.399963;F.tagcloud={id:"TagCloud",version:"0.5.0",defaults:{height:null,type:"cloud",sizemax:20,sizemin:10,colormax:"00F",colormin:"B4D2FF",seed:null,power:0.5}};F.fn.extend({tagcloud:function(M){C=F.extend({},F.tagcloud.defaults,M);if(C.seed===null){C.seed=Math.ceil(Math.random()*45309714203)}switch(C.type){case"sphere":case"cloud":A={position:"relative"};G={position:"absolute",display:"block"};break;case"list":A={height:"auto"};G={position:"static",display:"inline"};break}B.setSeed(C.seed+123456);return this.each(function(f,a){var q=F(a);var R=q.find(">li");var S=R.length;var Z=q.width();var l=C.height===null?(0.004*Z*S):C.height;q.css({width:Z,height:l,listStyle:"none",margin:0,padding:0});q.css(A);var e=-2147483647;var r=2147483648;var T=-1;for(var d=0;d<S;d++){var p=F(R[d]);var n=p.attr("value")==-1?T++:p.attr("value");if(n>e){e=n}if(n<r){r=n}T=n}var b=e-r;var X=new Array();for(var d=0;d<S;d++){X[d]=d}for(var d,V,c=X.length;c;d=parseInt(B.rand(0,1000)/1000*c),V=X[--c],X[c]=X[d],X[d]=V){}T=-1;for(var d=0;d<S;d++){var p=F(R[d]);var n=p.attr("value")==-1?T++:p.attr("value");T=n;var g=((S-d-1)/(S-1));var g=(n-r)/b;var m=C.sizemin+g*(C.sizemax-C.sizemin);var N=D(C.colormin,C.colormax,g);p.css({fontSize:m,position:"absolute",color:"#"+N,margin:0,padding:0}).children().css({color:"#"+N});var Y=p.width();var h=p.height();var Q={};if(C.type!="list"){if(C.type=="cloud"){var s=B.rand(0,Z-Y);var W=X[d]*(l/S)-h/2}else{var P=Math.pow(d/S,C.power);var U=(d+Math.PI/2)*L;var s=Z/2-Y/2+0.5*Z*P*Math.sin(U);var W=l/2-h/2+0.5*l*P*Math.cos(U)}Q.left=s;Q.top=W}for(var O in G){Q[O]=G[O]}p.css(Q)}})}});var B=new function(){this.seed=23145678901;this.A=48271;this.M=2147483647;this.Q=this.M/this.A;this.R=this.M%this.A;this.oneOverM=1/this.M};B.setSeed=function(M){this.seed=M};B.next=function(){var M=this.seed/this.Q;var N=this.seed%this.Q;var O=this.A*N-this.R*M;this.seed=O+(O>0?0:this.M);return(this.seed*this.oneOverM)};B.rand=function(N,M){return Math.floor((M-N+1)*this.next()+N)};function I(M){return M.toString(16)}function K(M){return parseInt(M,16)}function H(Q){var M=Q.length==3;var O=[];for(var N=0;N<3;N++){var P=Q.substring(N*(M?1:2),(N+1)*(M?1:2));O.push(K(M?P+P:P))}return O}function J(M){var O="";for(var N=0;N<3;N++){var P=I(M[N]);if(P.length==1){P="0"+P}O+=P}return O}function D(R,S,P){var Q=H(R);var M=H(S);var O=[];for(var N=0;N<3;N++){O.push(Q[N]+Math.floor(P*(M[N]-Q[N])))}return J(O)}function E(M){if(window.console&&window.console.log){if(typeof (M)=="string"){window.console.log(M)}else{for(var N in M){window.console.log(N+": "+M[N])}}}}F.fn.TagCloud=F.fn.Tagcloud=F.fn.tagcloud})(jQuery);
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