/**
 * Provides functionality for creating a stacked combo series.
 *
 * @module charts
 * @submodule series-combo-stacked
 */
/**
 * The StackedComboSeries class renders a combination of lines, plots and area fills in a single series. Series
 * are stacked along the value axis to indicate each series contribution to a cumulative total. Each
 * series type has a corresponding boolean attribute indicating if it is rendered. By default, all three types are
 * rendered.
 *
 * @class StackedComboSeries
 * @extends ComboSeries
 * @uses StackingUtil
 * @constructor
 * @param {Object} config (optional) Configuration parameters.
 * @submodule series-combo-stacked
 */
Y.StackedComboSeries = Y.Base.create("stackedComboSeries", Y.ComboSeries, [Y.StackingUtil], {
    /**
     * @protected
     *
     * Calculates the coordinates for the series. Overrides base implementation.
     *
     * @method setAreaData
     */
    setAreaData: function()
    {
        Y.StackedComboSeries.superclass.setAreaData.apply(this);
        this._stackCoordinates.apply(this);
    },

    /**
     * @protected
     *
     * Draws the series.
     *
     * @method drawSeries
     */
    drawSeries: function()
    {
        if(this.get("showAreaFill"))
        {
            this.drawFill.apply(this, this._getStackedClosingPoints());
        }
        if(this.get("showLines"))
        {
            this.drawLines();
        }
        if(this.get("showMarkers"))
        {
            this.drawPlots();
        }
    }

}, {
    ATTRS : {
        /**
         * Read-only attribute indicating the type of series.
         *
         * @attribute type
         * @type String
         * @default stackedCombo
         */
        type: {
            value: "stackedCombo"
        },

        /**
         * Indicates whether a fill is displayed.
         *
         * @attribute showAreaFill
         * @type Boolean
         * @default true
         */
        showAreaFill: {
            value: true
        }
    }
});