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YUI.add('axis-category', function (Y, NAME) {
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/**
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 * Provides functionality for drawing a category axis for use with a chart.
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 *
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 * @module charts
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 * @submodule axis-category
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 */
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var Y_Lang = Y.Lang;
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/**
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 * CategoryAxis draws a category axis for a chart.
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 *
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 * @class CategoryAxis
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 * @constructor
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 * @extends Axis
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 * @uses CategoryImpl
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 * @param {Object} config (optional) Configuration parameters.
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 * @submodule axis-category
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 */
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Y.CategoryAxis = Y.Base.create("categoryAxis", Y.Axis, [Y.CategoryImpl], {
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    /**
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     * Returns a string corresponding to the first label on an
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     * axis.
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     *
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     * @method getMinimumValue
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     * @return String
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     */
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    getMinimumValue: function()
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    {
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        var data = this.get("data"),
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            label = data[0];
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        return label;
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    },
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    /**
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     * Returns a string corresponding to the last label on an
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     * axis.
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     *
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     * @method getMaximumValue
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     * @return String
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     */
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    getMaximumValue: function()
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    {
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        var data = this.get("data"),
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            len = data.length - 1,
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            label = data[len];
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        return label;
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    },
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    /**
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     * Calculates and returns a value based on the number of labels and the index of
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     * the current label.
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     *
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     * @method _getLabelByIndex
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     * @param {Number} i Index of the label.
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     * @return String
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     * @private
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     */
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    _getLabelByIndex: function(i)
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    {
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        var label,
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            data = this.get("data");
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        label = data[i];
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        return label;
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    },
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    /**
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     * Returns an object literal containing and array of label values and an array of points.
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     *
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     * @method _getLabelData
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     * @param {Object} startPoint An object containing x and y values.
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     * @param {Number} edgeOffset Distance to offset coordinates.
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     * @param {Number} layoutLength Distance that the axis spans.
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     * @param {Number} count Number of labels.
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     * @param {String} direction Indicates whether the axis is horizontal or vertical.
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     * @param {Array} Array containing values for axis labels.
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     * @return Array
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     * @private
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     */
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    _getLabelData: function(constantVal, staticCoord, dynamicCoord, min, max, edgeOffset, layoutLength, count, dataValues)
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    {
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        var labelValue,
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            i,
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            points = [],
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            values = [],
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            point,
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            labelIndex,
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            data = this.get("data"),
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            offset = edgeOffset;
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        dataValues = dataValues || data;
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        for(i = 0; i < count; i = i + 1)
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        {
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            labelValue = dataValues[i];
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            labelIndex = Y.Array.indexOf(data, labelValue);
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            if(Y_Lang.isNumber(labelIndex) && labelIndex > -1)
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            {
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                point = {};
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                point[staticCoord] = constantVal;
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                point[dynamicCoord] = this._getCoordFromValue(
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                    min,
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                    max,
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                    layoutLength,
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                    labelIndex,
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                    offset
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                );
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                points.push(point);
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                values.push(labelValue);
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            }
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        }
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        return {
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            points: points,
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            values: values
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        };
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    }
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});
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}, '3.18.1', {"requires": ["axis", "axis-category-base"]});