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scripts.jQuery.treemap.js Maven / Gradle / Ivy
/*
* treemap plugin for jQuery (version 1.0.3 13/8/2008)
* Copyright (c) 2007-2008 Renato Formato
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*/
(function($) {
$.fn.treemap = function(w,h,options) {
options = $.extend({labelCell:0,dataCell:1,colorCell:2,headHeight:20,borderWidth:1,borderColor:"#000",getColor:treemap.getColor,sort:true,nested:false,legend:false},options);
var or_target = options.target;
return this.pushStack($.map(this,function(el){
var data;
if(!options.getData) {
if(!$.nodeName(el,"table")) return;
data = treemap.getDataFromTable(el,options);
} else {
data = options.getData(el);
}
//copy data because during the processing elements are deleted
data = data.concat();
if($.fn.treemap.caller!=treemap.layoutRow) {
options.minColorValue = Number.POSITIVE_INFINITY;
options.maxColorValue = Number.NEGATIVE_INFINITY;
if(!options.colorDiscreteVal) options.colorDiscreteVal = {num:0};
treemap.normalizeValues(data,options);
options.colorDiscrete = options.minColorValue == Number.POSITIVE_INFINITY;
options.rangeColorValue = options.maxColorValue-options.minColorValue;
}
if (options.sort)
data.sort(function(a,b){
var val1 = b[1], val2 = a[1];
val1 = val1.constructor==Array?treemap.getValue(val1):val1;
val2 = val2.constructor==Array?treemap.getValue(val2):val2;
return val1-val2;
});
options.target = or_target || el;
options.numSquare = 0;
treemap.render(data,h,w,options);
if($.fn.treemap.caller!=treemap.layoutRow && options.legend) {
jQuery(options.target).append(treemap.legend(h,options));
}
if(options.target==el && $.nodeName(el,"table")) {
var newObj = jQuery(el).find(">").insertBefore(el);
$(el).remove();
el = newObj.get();
}
return el;
}));
}
$.fn.treemapClone = function() {
return this.pushStack( jQuery.map( this, function(a){
return a.outerHTML ? jQuery(a.outerHTML)[0] : a.cloneNode(true);
}));
}
$.fn.treemapAppend = function(arguments) {
var el = this[0];
for(var i=0,l=arguments.length;ioptions.maxColorValue) options.maxColorValue=color;
if(!options.colorDiscreteVal[color]) options.colorDiscreteVal[color] = options.colorDiscreteVal.num++;
}
},
getDataFromTable : function(table,options) {
var data = [];
if(options.labelCell==undefined) options.labelCell = options.dataCell;
$("tbody tr",table).each(function(){
var cells = $(">",this);
var row = [cells.eq(options.labelCell).html(),
cells.eq(options.dataCell).html(),
cells.eq(options.colorCell).html()];
data.push(row);
});
return data;
},
emptyView: $("").addClass("treemapView"),
render : function(data,h,w,options) {
options.height = h;
options.width = w;
var s = treemap.calculateArea(data);
options.viewAreaCoeff = w*h/s;
options.view = treemap.emptyView.clone().css({'width':w,'height':h});
options.content = [];
treemap.squarify(data,[],h,true,options);
options.view.treemapAppend(options.content);
$(options.target).empty().treemapAppend(options.view);
},
squarify : function(data,row,w,orientation,options) {
if(w<=0) return; //exit if there's no space left on the treemap
var widerRow = row,s,s2,current;
do {
row = widerRow;
s = treemap.calculateArea(row);
if(data.length==0) return treemap.layoutRow(row,w,orientation,s,options,true);
current = data.shift();
widerRow = row.concat();
widerRow.push(current);
s2 = s+(current[1].constructor==Array?treemap.getValue(current[1]):current[1]);
} while (treemap.worst(row,w,s,options.viewAreaCoeff)>=treemap.worst(widerRow,w,s2,options.viewAreaCoeff))
var rowDim = treemap.layoutRow(row,w,orientation,s,options);
data.unshift(current);
if(!rowDim) rowDim = treemap.layoutRow([['',s]],w,orientation,s,options,true);
var width;
if(orientation) {
options.width -= rowDim;
width = options.width;
} else {
options.height -= rowDim;
width = options.height;
}
treemap.squarify(data,[],width,!orientation,options);
},
worst : function(row,w,s,coeff) {
var rl = row.length;
if(!rl) return Number.POSITIVE_INFINITY;
var w2 = w*w, s2 = s*s*coeff;
var r1 = (w2*(row[0][1].constructor==Array?treemap.getValue(row[0][1]):row[0][1]))/s2;
var r2 = s2/(w2*(row[rl-1][1].constructor==Array?treemap.getValue(row[rl-1][1]):row[rl-1][1]));
return Math.max( r1, r2 );
},
emptyCell: $("
").addClass("treemapCell").css({'float':'left','overflow':'hidden'}),
emptySquare: $("
").addClass("treemapSquare").css('float','left'),
layoutRow : function(row,w,orientation,s,options,last) {
var square = treemap.emptySquare.treemapClone();
var rowDim, h = s/w;
if(orientation) {
rowDim = last?options.width:Math.min(Math.round(h*options.viewAreaCoeff),options.width);
square.css({'width':rowDim,'height':w}).addClass("treemapV");
} else {
rowDim = last?options.height:Math.min(Math.round(h*options.viewAreaCoeff),options.height);
square.css({'height':rowDim,'width':w}).addClass("treemapH");
}
var rl = row.length-1,sum = 0, bw = options.borderWidth, bc = options.borderColor, bw2 = bw*2, cells = [];
for(var i=0;i<=rl;i++) {
var n = row[i],hier = n[1].constructor == Array, head = [], val = hier?treemap.getValue(n[1]):n[1];
var cell = treemap.emptyCell.treemapClone();
if(!hier) cell.append(n[0]); //[0].title = cell.text()+' ('+val+')' ;
var lastCell = i==rl;
var fixedDim = rowDim, varDim = lastCell ? w-sum : Math.round(val/h);
if(varDim<=0) break;
sum += varDim;
var cellStyles = {};
if(bw && rowDim>bw2 && varDim>bw2) {
if(jQuery.boxModel) {
fixedDim -= bw*(2-(options.numSquare>=2 || !options.numSquare && options.nested?1:0)-(last && options.nested?1:0));
varDim -= bw*(2-(!lastCell||options.nested?1:0)-(options.numSquare>=1 && !i?1:0));
}
cellStyles.border = bw+'px solid ' + bc;
if(!lastCell || options.nested)
cellStyles['border'+(orientation?'Bottom':'Right')] = 'none';
if(options.numSquare>=2 || !options.numSquare && options.nested)
cellStyles['border'+(orientation?'Left':'Top')] = 'none';
if(options.numSquare>=1 && !i)
cellStyles['border'+(orientation?'Top':'Left')] = 'none';
if(last && options.nested)
cellStyles['border'+(orientation?'Right':'Bottom')] = 'none';
}
var height = orientation?varDim:fixedDim, width = orientation?fixedDim:varDim;
cellStyles.height = height+'px';
cellStyles.width = width+'px';
if(hier) {
if(options.headHeight) {
head = $("
").css({"width":width,"height":options.headHeight,"overflow":"hidden"}).html(n[0]); //.attr('title',n[0]+' ('+val+')')
if(orientation)
height = varDim -= options.headHeight;
else
height = fixedDim -= options.headHeight;
}
if(height>0) {
var new_opt = {};
for(var prop in options) new_opt[prop] = options[prop];
new_opt["target"] = null;
new_opt = jQuery.extend(new_opt,{getData:function(){return n[1].concat()},nested:true});
cell.treemap(width,height,new_opt);
}
cell.prepend(head);
} else {
if(n[2]) cellStyles.backgroundColor = options.getColor(n[2],options);
}
if (n[3]) {
cell.attr({"id": n[3]});
}
//cell.css(cellStyles);
var cellstyle = cell[0].style;
for(var prop in cellStyles)
cellstyle[prop] = cellStyles[prop];
cells.push(cell[0]);
}
options.content.push(square.treemapAppend(cells)[0]);
options.numSquare++;
return rowDim;
},
calculateArea : function(row) {
if(row.total) return row.total;
var s = 0,rl = row.length;
for(var i=0;i
").css({position:'absolute',left:25,width:200}),
legend : function(h,options) {
var l = $("").css({position:'relative','float':'left',height:h-2});
var bar = $("
").css({width:20,height:h-2,border:"1px solid"});
options.view.css({'float':'left','marginRight':20});
if(options.colorDiscrete) {
$.each(options.colorDiscreteVal,function(i,n){
if(i!='num') {
i = options.descriptionCallback ? options.descriptionCallback(i):i;
var height = Math.round(n*h/options.colorDiscreteVal.num);
var bar = $("
").css({height:20,width:20,backgroundColor:treemap.getColor(i,options),position:'absolute',bottom:height});
var desc = treemap.emptyLegendDescr.clone().text(i).css('bottom',height);
l.append(bar).append(desc);
}
});
} else {
for(var i=h-1;i>1;i--) {
var color = $("
").height(1).css("backgroundColor",treemap.getColorCode(i/h));
bar.append(color);
};
l.append(bar);
for(var i=0;i<10;i++) {
var val = i*options.rangeColorValue/10+options.minColorValue;
val = options.descriptionCallback ? options.descriptionCallback(val):val;
var desc = treemap.emptyLegendDescr.clone().text(val.toString()).css('bottom',Math.round(i*h/10));
l.append(desc);
};
}
return l;
}
}
})(jQuery)
