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

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

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.Stacked", dojox.charting.plot2d.Default, {
                calculateAxes: function(dim){
                        var stats = dc.collectStackedStats(this.series);
                        this._maxRunLength = stats.hmax;
                        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, stroke, outline, color, marker;
                        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,
                                        lpoly = dojo.map(acc, function(v, i){
                                                return {
                                                        x: this._hScaler.scale * (i + 1 - this._hScaler.bounds.lower) + offsets.l,
                                                        y: dim.height - offsets.b - this._vScaler.scale * (v - this._vScaler.bounds.lower)
                                                };
                                        }, this);
                                if(!run.fill || !run.stroke){
                                        // need autogenerated color
                                        color = new dojo.Color(t.next("color"));
                                }
                                if(this.opt.areas){
                                        var apoly = dojo.clone(lpoly);
                                        apoly.push({x: lpoly[lpoly.length - 1].x, y: dim.height - offsets.b});
                                        apoly.push({x: lpoly[0].x, y: dim.height - offsets.b});
                                        apoly.push(lpoly[0]);
                                        var fill = run.fill ? run.fill : dc.augmentFill(t.series.fill, color);
                                        s.createPolyline(apoly).setFill(fill);
                                }
                                if(this.opt.lines || this.opt.markers){
                                        // need a stroke
                                        stroke = run.stroke ? dc.makeStroke(run.stroke) : dc.augmentStroke(t.series.stroke, color);
                                        if(run.outline || t.series.outline){
                                                outline = dc.makeStroke(run.outline ? run.outline : t.series.outline);
                                                outline.width = 2 * outline.width + stroke.width;
                                        }
                                }
                                if(this.opt.markers){
                                        // need a marker
                                        marker = run.marker ? run.marker : t.next("marker");
                                }
                                if(this.opt.shadows && stroke){
                                        var sh = this.opt.shadows, shadowColor = new dojo.Color([0, 0, 0, 0.3]),
                                                spoly = dojo.map(lpoly, function(c){
                                                        return {x: c.x + sh.dx, y: c.y + sh.dy};
                                                }),
                                                shadowStroke = dojo.clone(outline ? outline : stroke);
                                        shadowStroke.color = shadowColor;
                                        shadowStroke.width += sh.dw ? sh.dw : 0;
                                        if(this.opt.lines){
                                                s.createPolyline(spoly).setStroke(shadowStroke);
                                        }
                                        if(this.opt.markers){
                                                dojo.forEach(spoly, function(c){
                                                        s.createPath("M" + c.x + " " + c.y + " " + marker).setStroke(shadowStroke).setFill(shadowColor);
                                                }, this);
                                        }
                                }
                                if(this.opt.lines){
                                        if(outline){
                                                s.createPolyline(lpoly).setStroke(outline);
                                        }
                                        s.createPolyline(lpoly).setStroke(stroke);
                                }
                                if(this.opt.markers){
                                        dojo.forEach(lpoly, function(c){
                                                var path = "M" + c.x + " " + c.y + " " + marker;
                                                if(outline){
                                                        s.createPath(path).setStroke(outline);
                                                }
                                                s.createPath(path).setStroke(stroke).setFill(stroke.color);
                                        }, this);
                                }
                                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;
                }
        });
})();

}