git.pond.sub.org Git - eow/blob - static/dojo-release-1.1.1/dojox/charting/plot2d/ClusteredColumns.js

   1 if(!dojo._hasResource["dojox.charting.plot2d.ClusteredColumns"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
   2 dojo._hasResource["dojox.charting.plot2d.ClusteredColumns"] = true;
   3 dojo.provide("dojox.charting.plot2d.ClusteredColumns");
   4
   5 dojo.require("dojox.charting.plot2d.common");
   6 dojo.require("dojox.charting.plot2d.Columns");
   7
   8 dojo.require("dojox.lang.functional");
   9 dojo.require("dojox.lang.functional.reversed");
  10
  11 (function(){
  12         var df = dojox.lang.functional, dc = dojox.charting.plot2d.common,
  13                 purgeGroup = df.lambda("item.purgeGroup()");
  14
  15         dojo.declare("dojox.charting.plot2d.ClusteredColumns", dojox.charting.plot2d.Columns, {
  16                 render: function(dim, offsets){
  17                         if(this.dirty){
  18                                 dojo.forEach(this.series, purgeGroup);
  19                                 this.cleanGroup();
  20                                 var s = this.group;
  21                                 df.forEachRev(this.series, function(item){ item.cleanGroup(s); });
  22                         }
  23                         var t = this.chart.theme, color, stroke, fill, f,
  24                                 gap = this.opt.gap < this._hScaler.scale / 3 ? this.opt.gap : 0,
  25                                 thickness = (this._hScaler.scale - 2 * gap) / this.series.length;
  26                         for(var i = 0; i < this.series.length; ++i){
  27                                 var run = this.series[i];
  28                                 if(!this.dirty && !run.dirty){ continue; }
  29                                 run.cleanGroup();
  30                                 var s = run.group;
  31                                 if(!run.fill || !run.stroke){
  32                                         // need autogenerated color
  33                                         color = run.dyn.color = new dojo.Color(t.next("color"));
  34                                 }
  35                                 stroke = run.stroke ? run.stroke : dc.augmentStroke(t.series.stroke, color);
  36                                 fill = run.fill ? run.fill : dc.augmentFill(t.series.fill, color);
  37                                 var baseline = Math.max(0, this._vScaler.bounds.lower),
  38                                         xoff = offsets.l + this._hScaler.scale * (0.5 - this._hScaler.bounds.lower) + gap + thickness * i,
  39                                         yoff = dim.height - offsets.b - this._vScaler.scale * (baseline - this._vScaler.bounds.lower);
  40                                 for(var j = 0; j < run.data.length; ++j){
  41                                         var v = run.data[j],
  42                                                 width  = thickness,
  43                                                 height = this._vScaler.scale * (v - baseline),
  44                                                 h = Math.abs(height);
  45                                         if(width >= 1 && h >= 1){
  46                                                 var shape = s.createRect({
  47                                                         x: xoff + this._hScaler.scale * j,
  48                                                         y: yoff - (height < 0 ? 0 : height),
  49                                                         width: width, height: h
  50                                                 }).setFill(fill).setStroke(stroke);
  51                                                 run.dyn.fill   = shape.getFill();
  52                                                 run.dyn.stroke = shape.getStroke();
  53                                         }
  54                                 }
  55                                 run.dirty = false;
  56                         }
  57                         this.dirty = false;
  58                         return this;
  59                 }
  60         });
  61 })();
  62
  63 }