GZ/nwyj/.svn/pristine/b7/b7fdf8b02fd881a9f0d29c768b684d3ccdd3fafa.svn-base

if (!dojo._hasResource["dojox.charting.plot2d.StackedBars"]) { // _hasResource
																// checks added
																// by build. Do
																// not use
																// _hasResource
																// directly in
																// your code.
	dojo._hasResource["dojox.charting.plot2d.StackedBars"] = true;
	dojo.provide("dojox.charting.plot2d.StackedBars");

	dojo.require("dojox.charting.plot2d.common");
	dojo.require("dojox.charting.plot2d.Bars");

	dojo.require("dojox.lang.functional");

	(function() {
		var df = dojox.lang.functional, dc = dojox.charting.plot2d.common, purgeGroup = df
				.lambda("item.purgeGroup()");

		dojo.declare("dojox.charting.plot2d.StackedBars",
				dojox.charting.plot2d.Bars, {
					calculateAxes : function(dim) {
						var stats = dc.collectStackedStats(this.series), t;
						this._maxRunLength = stats.hmax;
						stats.hmin -= 0.5;
						stats.hmax += 0.5;
						t = stats.hmin, stats.hmin = stats.vmin, stats.vmin = t;
						t = stats.hmax, stats.hmax = stats.vmax, stats.vmax = t;
						this._calc(dim, stats);
						return this;
					},
					render : function(dim, offsets) {
						// stack all values
						var acc = df.repeat(this._maxRunLength, "-> 0", 0);
						for (var i = 0; i < this.series.length; ++i) {
							var run = this.series[i];
							for (var j = 0; j < run.data.length; ++j) {
								var v = run.data[j];
								if (isNaN(v)) {
									v = 0;
								}
								acc[j] += v;
							}
						}
						// draw runs in backwards
						if (this.dirty) {
							dojo.forEach(this.series, purgeGroup);
							this.cleanGroup();
							var s = this.group;
							df.forEachReversed(this.series, function(item) {
										item.cleanGroup(s);
									});
						}
						var t = this.chart.theme, color, stroke, fill, f, gap = this.opt.gap < this._vScaler.scale
								/ 3 ? this.opt.gap : 0;
						for (var i = this.series.length - 1; i >= 0; --i) {
							var run = this.series[i];
							if (!this.dirty && !run.dirty) {
								continue;
							}
							run.cleanGroup();
							var s = run.group;
							if (!run.fill || !run.stroke) {
								// need autogenerated color
								color = run.dyn.color = new dojo.Color(t
										.next("color"));
							}
							stroke = run.stroke ? run.stroke : dc
									.augmentStroke(t.series.stroke, color);
							fill = run.fill ? run.fill : dc.augmentFill(
									t.series.fill, color);
							for (var j = 0; j < acc.length; ++j) {
								var v = acc[j], width = this._hScaler.scale
										* (v - this._hScaler.bounds.lower), height = this._vScaler.scale
										- 2 * gap;
								if (width >= 1 && height >= 1) {
									var shape = s.createRect({
										x : offsets.l,
										y : dim.height
												- offsets.b
												- this._vScaler.scale
												* (j + 1.5 - this._vScaler.bounds.lower)
												+ gap,
										width : width,
										height : height
									}).setFill(fill).setStroke(stroke);
									run.dyn.fill = shape.getFill();
									run.dyn.stroke = shape.getStroke();
								}
							}
							run.dirty = false;
							// update the accumulator
							for (var j = 0; j < run.data.length; ++j) {
								var v = run.data[j];
								if (isNaN(v)) {
									v = 0;
								}
								acc[j] -= v;
							}
						}
						this.dirty = false;
						return this;
					}
				});
	})();

}