YUI.add('series-area', function (Y, NAME) {

/**

 * Provides functionality for creating a area series.

 *

 * @module charts

 * @submodule series-area

 */

/**

 * The AreaSeries class renders quantitative data on a graph by creating a fill between 0

 * and the relevant data points.

 *

 * @class AreaSeries

 * @extends CartesianSeries

 * @uses Fills

 * @constructor

 * @param {Object} config (optional) Configuration parameters.

 * @submodule series-area

 */

Y.AreaSeries = Y.Base.create("areaSeries", Y.CartesianSeries, [Y.Fills], {

    /**

     * @protected

     *

     * Renders the series.

     *

     * @method drawSeries

     */

    drawSeries: function()

    {

        this.drawFill.apply(this, this._getClosingPoints());

    },

    /**

     * @protected

     *

     * Method used by `styles` setter. Overrides base implementation.

     *

     * @method _setStyles

     * @param {Object} newStyles Hash of properties to update.

     * @return Object

     */

    _setStyles: function(val)

    {

        if(!val.area)

        {

            val = {area:val};

        }

        return Y.AreaSeries.superclass._setStyles.apply(this, [val]);

    },

    /**

     * @protected

     *

     * Gets the default value for the `styles` attribute. Overrides

     * base implementation.

     *

     * @method _getDefaultStyles

     * @return Object

     */

    _getDefaultStyles: function()

    {

        var styles = this._mergeStyles({area:this._getAreaDefaults()}, Y.AreaSeries.superclass._getDefaultStyles());

        return styles;

    }

},

{

    ATTRS: {

        /**

         * Read-only attribute indicating the type of series.

         *

         * @attribute type

         * @type String

         * @default area

         */

        type: {

            value:"area"

        }

        /**

         * Style properties used for drawing area fills. This attribute is inherited from `Renderer`. Below are the default values:

         *

         *  <dl>

         *      <dt>color</dt><dd>The color of the fill. The default value is determined by the order of the series on the graph. The color will be

         *      retrieved from the following array:

         *      `["#66007f", "#a86f41", "#295454", "#996ab2", "#e8cdb7", "#90bdbd","#000000","#c3b8ca", "#968373", "#678585"]`

         *      </dd>

         *      <dt>alpha</dt><dd>Number between 0 and 1 that indicates the opacity of the fill. The default value is 1</dd>

         *  </dl>

         *

         * @attribute styles

         * @type Object

         */

    }

});

}, '@VERSION@', {"requires": ["series-cartesian", "series-fill-util"]});