source: Dev/trunk/src/client/dojox/charting/plot2d/StackedColumns.js

define(["dojo/_base/declare", "./Columns", "./commonStacked"], 
        function( declare, Columns, commonStacked){

        return declare("dojox.charting.plot2d.StackedColumns", Columns, {
                // summary:
                //              The plot object representing a stacked column chart (vertical bars).
                getSeriesStats: function(){
                        // summary:
                        //              Calculate the min/max on all attached series in both directions.
                        // returns: Object
                        //              {hmin, hmax, vmin, vmax} min/max in both directions.
                        var stats = commonStacked.collectStats(this.series);
                        stats.hmin -= 0.5;
                        stats.hmax += 0.5;
                        return stats; // Object
                },
                getValue: function(value, index, seriesIndex, indexed){
                        var x, y;
                        if(indexed){
                                x = index;
                                y = commonStacked.getIndexValue(this.series, seriesIndex, x);
                        }else{
                                x = value.x - 1;
                                y = commonStacked.getValue(this.series, seriesIndex, value.x);
                                y = [  y[0]?y[0].y:null, y[1]?y[1]:null ];
                        }
                        // in py we return the previous stack value as we need it to position labels on columns
                        return { x: x, y: y[0], py: y[1] };
                }
        });
});