216 lines
15 KiB
JavaScript
216 lines
15 KiB
JavaScript
var labelType, useGradients, nativeTextSupport, animate;
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(function() {
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var ua = navigator.userAgent,
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iStuff = ua.match(/iPhone/i) || ua.match(/iPad/i),
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typeOfCanvas = typeof HTMLCanvasElement,
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nativeCanvasSupport = (typeOfCanvas == 'object' || typeOfCanvas == 'function'),
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textSupport = nativeCanvasSupport
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&& (typeof document.createElement('canvas').getContext('2d').fillText == 'function');
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//I'm setting this based on the fact that ExCanvas provides text support for IE
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//and that as of today iPhone/iPad current text support is lame
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labelType = (!nativeCanvasSupport || (textSupport && !iStuff))? 'Native' : 'HTML';
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nativeTextSupport = labelType == 'Native';
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useGradients = nativeCanvasSupport;
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animate = !(iStuff || !nativeCanvasSupport);
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})();
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var Log = {
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elem: false,
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write: function(text){
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if (!this.elem)
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this.elem = document.getElementById('log');
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this.elem.innerHTML = text;
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this.elem.style.left = (500 - this.elem.offsetWidth / 2) + 'px';
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}
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};
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function init(){
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//init data
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var json = "{id:\"node02\", name:\"0.2\", data:{}, children:[{id:\"node13\", name:\"1.3\", data:{}, children:[{id:\"node24\", name:\"2.4\", data:{}, children:[{id:\"node35\", name:\"3.5\", data:{}, children:[{id:\"node46\", name:\"4.6\", data:{}, children:[]}]}, {id:\"node37\", name:\"3.7\", data:{}, children:[{id:\"node48\", name:\"4.8\", data:{}, children:[]}, {id:\"node49\", name:\"4.9\", data:{}, children:[]}, {id:\"node410\", name:\"4.10\", data:{}, children:[]}, {id:\"node411\", name:\"4.11\", data:{}, children:[]}]}, {id:\"node312\", name:\"3.12\", data:{}, children:[{id:\"node413\", name:\"4.13\", data:{}, children:[]}]}, {id:\"node314\", name:\"3.14\", data:{}, children:[{id:\"node415\", name:\"4.15\", data:{}, children:[]}, {id:\"node416\", name:\"4.16\", data:{}, children:[]}, {id:\"node417\", name:\"4.17\", data:{}, children:[]}, {id:\"node418\", name:\"4.18\", data:{}, children:[]}]}, {id:\"node319\", name:\"3.19\", data:{}, children:[{id:\"node420\", name:\"4.20\", data:{}, children:[]}, {id:\"node421\", name:\"4.21\", data:{}, children:[]}]}]}, {id:\"node222\", name:\"2.22\", data:{}, children:[{id:\"node323\", name:\"3.23\", data:{}, children:[{id:\"node424\", name:\"4.24\", data:{}, children:[]}]}]}]}, {id:\"node125\", name:\"1.25\", data:{}, children:[{id:\"node226\", name:\"2.26\", data:{}, children:[{id:\"node327\", name:\"3.27\", data:{}, children:[{id:\"node428\", name:\"4.28\", data:{}, children:[]}, {id:\"node429\", name:\"4.29\", data:{}, children:[]}]}, {id:\"node330\", name:\"3.30\", data:{}, children:[{id:\"node431\", name:\"4.31\", data:{}, children:[]}]}, {id:\"node332\", name:\"3.32\", data:{}, children:[{id:\"node433\", name:\"4.33\", data:{}, children:[]}, {id:\"node434\", name:\"4.34\", data:{}, children:[]}, {id:\"node435\", name:\"4.35\", data:{}, children:[]}, {id:\"node436\", name:\"4.36\", data:{}, children:[]}]}]}, {id:\"node237\", name:\"2.37\", data:{}, children:[{id:\"node338\", name:\"3.38\", data:{}, children:[{id:\"node439\", name:\"4.39\", data:{}, children:[]}, {id:\"node440\", name:\"4.40\", data:{}, children:[]}, {id:\"node441\", name:\"4.41\", data:{}, children:[]}]}, {id:\"node342\", name:\"3.42\", data:{}, children:[{id:\"node443\", name:\"4.43\", data:{}, children:[]}]}, {id:\"node344\", name:\"3.44\", data:{}, children:[{id:\"node445\", name:\"4.45\", data:{}, children:[]}, {id:\"node446\", name:\"4.46\", data:{}, children:[]}, {id:\"node447\", name:\"4.47\", data:{}, children:[]}]}, {id:\"node348\", name:\"3.48\", data:{}, children:[{id:\"node449\", name:\"4.49\", data:{}, children:[]}, {id:\"node450\", name:\"4.50\", data:{}, children:[]}, {id:\"node451\", name:\"4.51\", data:{}, children:[]}, {id:\"node452\", name:\"4.52\", data:{}, children:[]}, {id:\"node453\", name:\"4.53\", data:{}, children:[]}]}, {id:\"node354\", name:\"3.54\", data:{}, children:[{id:\"node455\", name:\"4.55\", data:{}, children:[]}, {id:\"node456\", name:\"4.56\", data:{}, children:[]}, {id:\"node457\", name:\"4.57\", data:{}, children:[]}]}]}, {id:\"node258\", name:\"2.58\", data:{}, children:[{id:\"node359\", name:\"3.59\", data:{}, children:[{id:\"node460\", name:\"4.60\", data:{}, children:[]}, {id:\"node461\", name:\"4.61\", data:{}, children:[]}, {id:\"node462\", name:\"4.62\", data:{}, children:[]}, {id:\"node463\", name:\"4.63\", data:{}, children:[]}, {id:\"node464\", name:\"4.64\", data:{}, children:[]}]}]}]}, {id:\"node165\", name:\"1.65\", data:{}, children:[{id:\"node266\", name:\"2.66\", data:{}, children:[{id:\"node367\", name:\"3.67\", data:{}, children:[{id:\"node468\", name:\"4.68\", data:{}, children:[]}, {id:\"node469\", name:\"4.69\", data:{}, children:[]}, {id:\"node470\", name:\"4.70\", data:{}, children:[]}, {id:\"node471\", name:\"4.71\", data:{}, children:[]}]}, {id:\"node372\", name:\"3.72\", data:{}, children:[{id:\"node473\", name:\"4.73\", data:{}, children:[]}, {id:\"node474\", name:\"4.74\", data:{}, children:[]}, {id:\"node475\", name:\"4.75\", data:{}, children:[]}, {id:\"node476\", name:\"4.76\", data:{}, children:[]}]}, {id:\"node377\", name:\"3.77\", data:{}, children:[{id:\"node478\", name:\"4.78\", data:{}, children:[]}, {id:\"node479\", name:\"4.79\", data:{}, children:[]}]}, {id:\"node380\", name:\"3.80\", data:{}, children:[{id:\"node481\", name:\"4.81\", data:{}, children:[]}, {id:\"node482\", name:\"4.82\", data:{}, children:[]}]}]}, {id:\"node283\", name:\"2.83\", data:{}, children:[{id:\"node384\", name:\"3.84\", data:{}, children:[{id:\"node485\", name:\"4.85\", data:{}, children:[]}]}, {id:\"node386\", name:\"3.86\", data:{}, children:[{id:\"node487\", name:\"4.87\", data:{}, children:[]}, {id:\"node488\", name:\"4.88\", data:{}, children:[]}, {id:\"node489\", name:\"4.89\", data:{}, children:[]}, {id:\"node490\", name:\"4.90\", data:{}, children:[]}, {id:\"node491\", name:\"4.91\", data:{}, children:[]}]}, {id:\"node392\", name:\"3.92\", data:{}, children:[{id:\"node493\", name:\"4.93\", data:{}, children:[]}, {id:\"node494\", name:\"4.94\", data:{}, children:[]}, {id:\"node495\", name:\"4.95\", data:{}, children:[]}, {id:\"node496\", name:\"4.96\", data:{}, children:[]}]}, {id:\"node397\", name:\"3.97\", data:{}, children:[{id:\"node498\", name:\"4.98\", data:{}, children:[]}]}, {id:\"node399\", name:\"3.99\", data:{}, children:[{id:\"node4100\", name:\"4.100\", data:{}, children:[]}, {id:\"node4101\", name:\"4.101\", data:{}, children:[]}, {id:\"node4102\", name:\"4.102\", data:{}, children:[]}, {id:\"node4103\", name:\"4.103\", data:{}, children:[]}]}]}, {id:\"node2104\", name:\"2.104\", data:{}, children:[{id:\"node3105\", name:\"3.105\", data:{}, children:[{id:\"node4106\", name:\"4.106\", data:{}, children:[]}, {id:\"node4107\", name:\"4.107\", data:{}, children:[]}, {id:\"node4108\", name:\"4.108\", data:{}, children:[]}]}]}, {id:\"node2109\", name:\"2.109\", data:{}, children:[{id:\"node3110\", name:\"3.110\", data:{}, children:[{id:\"node4111\", name:\"4.111\", data:{}, children:[]}, {id:\"node4112\", name:\"4.112\", data:{}, children:[]}]}, {id:\"node3113\", name:\"3.113\", data:{}, children:[{id:\"node4114\", name:\"4.114\", data:{}, children:[]}, {id:\"node4115\", name:\"4.115\", data:{}, children:[]}, {id:\"node4116\", name:\"4.116\", data:{}, children:[]}]}, {id:\"node3117\", name:\"3.117\", data:{}, children:[{id:\"node4118\", name:\"4.118\", data:{}, children:[]}, {id:\"node4119\", name:\"4.119\", data:{}, children:[]}, {id:\"node4120\", name:\"4.120\", data:{}, children:[]}, {id:\"node4121\", name:\"4.121\", data:{}, children:[]}]}, {id:\"node3122\", name:\"3.122\", data:{}, children:[{id:\"node4123\", name:\"4.123\", data:{}, children:[]}, {id:\"node4124\", name:\"4.124\", data:{}, children:[]}]}]}, {id:\"node2125\", name:\"2.125\", data:{}, children:[{id:\"node3126\", name:\"3.126\", data:{}, children:[{id:\"node4127\", name:\"4.127\", data:{}, children:[]}, {id:\"node4128\", name:\"4.128\", data:{}, children:[]}, {id:\"node4129\", name:\"4.129\", data:{}, children:[]}]}]}]}, {id:\"node1130\", name:\"1.130\", data:{}, children:[{id:\"node2131\", name:\"2.131\", data:{}, children:[{id:\"node3132\", name:\"3.132\", data:{}, children:[{id:\"node4133\", name:\"4.133\", data:{}, children:[]}, {id:\"node4134\", name:\"4.134\", data:{}, children:[]}, {id:\"node4135\", name:\"4.135\", data:{}, children:[]}, {id:\"node4136\", name:\"4.136\", data:{}, children:[]}, {id:\"node4137\", name:\"4.137\", data:{}, children:[]}]}]}, {id:\"node2138\", name:\"2.138\", data:{}, children:[{id:\"node3139\", name:\"3.139\", data:{}, children:[{id:\"node4140\", name:\"4.140\", data:{}, children:[]}, {id:\"node4141\", name:\"4.141\", data:{}, children:[]}]}, {id:\"node3142\", name:\"3.142\", data:{}, children:[{id:\"node4143\", name:\"4.143\", data:{}, children:[]}, {id:\"node4144\", name:\"4.144\", data:{}, children:[]}, {id:\"node4145\", name:\"4.145\", data:{}, children:[]}, {id:\"node4146\", name:\"4.146\", data:{}, children:[]}, {id:\"node4147\", name:\"4.147\", data:{}, children:[]}]}]}]}]}";
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//end
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//A client-side tree generator
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var getTree = (function() {
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var i = 0;
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return function(nodeId, level) {
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var subtree = eval('(' + json.replace(/id:\"([a-zA-Z0-9]+)\"/g,
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function(all, match) {
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return "id:\"" + match + "_" + i + "\""
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}) + ')');
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$jit.json.prune(subtree, level); i++;
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return {
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'id': nodeId,
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'children': subtree.children
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};
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};
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})();
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//Implement a node rendering function called 'nodeline' that plots a straight line
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//when contracting or expanding a subtree.
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$jit.ST.Plot.NodeTypes.implement({
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'nodeline': {
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'render': function(node, canvas, animating) {
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if(animating === 'expand' || animating === 'contract') {
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var pos = node.pos.getc(true), nconfig = this.node, data = node.data;
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var width = nconfig.width, height = nconfig.height;
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var algnPos = this.getAlignedPos(pos, width, height);
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var ctx = canvas.getCtx(), ort = this.config.orientation;
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ctx.beginPath();
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if(ort == 'left' || ort == 'right') {
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ctx.moveTo(algnPos.x, algnPos.y + height / 2);
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ctx.lineTo(algnPos.x + width, algnPos.y + height / 2);
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} else {
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ctx.moveTo(algnPos.x + width / 2, algnPos.y);
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ctx.lineTo(algnPos.x + width / 2, algnPos.y + height);
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}
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ctx.stroke();
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}
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}
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}
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});
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//init Spacetree
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//Create a new ST instance
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var st = new $jit.ST({
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'injectInto': 'infovis',
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//set duration for the animation
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duration: 800,
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//set animation transition type
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transition: $jit.Trans.Quart.easeInOut,
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//set distance between node and its children
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levelDistance: 50,
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//set max levels to show. Useful when used with
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//the request method for requesting trees of specific depth
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levelsToShow: 2,
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//set node and edge styles
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//set overridable=true for styling individual
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//nodes or edges
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Node: {
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height: 20,
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width: 40,
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//use a custom
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//node rendering function
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type: 'nodeline',
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color:'#23A4FF',
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lineWidth: 2,
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align:"center",
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overridable: true
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},
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Edge: {
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type: 'bezier',
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lineWidth: 2,
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color:'#23A4FF',
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overridable: true
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},
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//Add a request method for requesting on-demand json trees.
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//This method gets called when a node
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//is clicked and its subtree has a smaller depth
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//than the one specified by the levelsToShow parameter.
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//In that case a subtree is requested and is added to the dataset.
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//This method is asynchronous, so you can make an Ajax request for that
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//subtree and then handle it to the onComplete callback.
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//Here we just use a client-side tree generator (the getTree function).
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request: function(nodeId, level, onComplete) {
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var ans = getTree(nodeId, level);
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onComplete.onComplete(nodeId, ans);
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},
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onBeforeCompute: function(node){
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Log.write("loading " + node.name);
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},
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onAfterCompute: function(){
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Log.write("done");
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},
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//This method is called on DOM label creation.
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//Use this method to add event handlers and styles to
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//your node.
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onCreateLabel: function(label, node){
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label.id = node.id;
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label.innerHTML = node.name;
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label.onclick = function(){
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st.onClick(node.id);
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};
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//set label styles
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var style = label.style;
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style.width = 40 + 'px';
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style.height = 17 + 'px';
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style.cursor = 'pointer';
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style.color = '#fff';
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//style.backgroundColor = '#1a1a1a';
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style.fontSize = '0.8em';
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style.textAlign= 'center';
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style.textDecoration = 'underline';
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style.paddingTop = '3px';
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},
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//This method is called right before plotting
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//a node. It's useful for changing an individual node
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//style properties before plotting it.
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//The data properties prefixed with a dollar
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//sign will override the global node style properties.
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onBeforePlotNode: function(node){
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//add some color to the nodes in the path between the
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//root node and the selected node.
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if (node.selected) {
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node.data.$color = "#ff7";
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}
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else {
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delete node.data.$color;
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}
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},
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//This method is called right before plotting
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//an edge. It's useful for changing an individual edge
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//style properties before plotting it.
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//Edge data proprties prefixed with a dollar sign will
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//override the Edge global style properties.
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onBeforePlotLine: function(adj){
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if (adj.nodeFrom.selected && adj.nodeTo.selected) {
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adj.data.$color = "#eed";
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adj.data.$lineWidth = 3;
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}
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else {
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delete adj.data.$color;
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delete adj.data.$lineWidth;
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}
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}
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});
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//load json data
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st.loadJSON(eval( '(' + json + ')' ));
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//compute node positions and layout
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st.compute();
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//emulate a click on the root node.
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st.onClick(st.root);
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//end
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//Add event handlers to switch spacetree orientation.
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function get(id) {
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return document.getElementById(id);
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};
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var top = get('r-top'),
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left = get('r-left'),
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bottom = get('r-bottom'),
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right = get('r-right');
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function changeHandler() {
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if(this.checked) {
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top.disabled = bottom.disabled = right.disabled = left.disabled = true;
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st.switchPosition(this.value, "animate", {
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onComplete: function(){
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top.disabled = bottom.disabled = right.disabled = left.disabled = false;
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}
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});
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}
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};
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top.onchange = left.onchange = bottom.onchange = right.onchange = changeHandler;
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//end
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}
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