/*

YUI 3.10.3 (build 2fb5187)

Copyright 2013 Yahoo! Inc. All rights reserved.

Licensed under the BSD License.

http://yuilibrary.com/license/

*/

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

/**

 * Provides functionality for creating a candlestick series.

 *

 * @module charts

 * @submodule series-candlestick

 */

/**

 * The CandlestickSeries class renders columns (candles) and lines (wicks) representing the open, high, low and close

 * values for a chart.

 *

 * @class CandlestickSeries

 * @extends RangeSeries

 * @constructor

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

 * @submodule series-candlestick

 */

function CandlestickSeries()

{

    CandlestickSeries.superclass.constructor.apply(this, arguments);

}

CandlestickSeries.NAME = "candlestickSeries";

CandlestickSeries.ATTRS = {

    /**

     * Read-only attribute indicating the type of series.

     *

     * @attribute type

     * @type String

     * @readOnly

     * @default candlestick

     */

    type: {

        value: "candlestick"

    },

    /**

     * The graphic in which drawings will be rendered.

     *

     * @attribute graphic

     * @type Graphic

     */

    graphic: {

        lazyAdd: false,

        setter: function(val) {

            //woraround for Attribute order of operations bug

            if(!this.get("rendered")) {

                this.set("rendered", true);

            }

            this.set("upcandle", val.addShape({

               type: "path"

            }));

            this.set("downcandle", val.addShape({

               type: "path"

            }));

            this.set("wick", val.addShape({

               type: "path"

            }));

            return val;

        }

    },

    /**

     * Reference to the candlestick used when the close value is higher than the open value.

     *

     * @attribute upcandle

     * @type Path

     */

    upcandle: {},

    /**

     * Reference to the candlestick used when the open value is higher than the close value.

     *

     * @attribute downcandle

     * @type Path

     */

    downcandle: {},

    /**

     * Reference to the line drawn between the high and low values.

     *

     * @attribute wick

     * @type Path

     */

    wick: {}

    /**

     * Style properties used for drawing candles and wicks. This attribute is inherited from `RangeSeries`. Below are the default values:

     *  <dl>

     *      <dt>upcandle</dt><dd>Properties for a candle representing a period that closes higher than it opens.

     *          <dl>

     *              <dt>fill</dt><dd>A hash containing the following values:

     *                  <dl>

     *                      <dt>color</dt><dd>Color of the fill. The default value is "#00aa00".</dd>

     *                      </dd>

     *                      <dt>alpha</dt><dd>Number from 0 to 1 indicating the opacity of the marker fill. The default value is 1.</dd>

     *                  </dl>

     *              </dd>

     *              <dt>border</dt><dd>A hash containing the following values:

     *                  <dl>

     *                      <dt>color</dt><dd>Color of the border. The default value is "#000000".</dd>

     *                      <dt>alpha</dt><dd>Number from 0 to 1 indicating the opacity of the marker border. The default value is 1.</dd>

     *                      <dt>weight</dt><dd>Number indicating the width of the border. The default value is 0.</dd>

     *                  </dl>

     *              </dd>

     *          </dl>

     *      </dd>

     *      <dt>downcandle</dt><dd>Properties for a candle representing a period that opens higher than it closes.

     *          <dl>

     *              <dt>fill</dt><dd>A hash containing the following values:

     *                  <dl>

     *                      <dt>color</dt><dd>Color of the fill. The default value is "#aa0000".</dd>

     *                      </dd>

     *                      <dt>alpha</dt><dd>Number from 0 to 1 indicating the opacity of the marker fill. The default value is 1.</dd>

     *                  </dl>

     *              </dd>

     *              <dt>border</dt><dd>A hash containing the following values:

     *                  <dl>

     *                      <dt>color</dt><dd>Color of the border. The default value is "#000000".</dd>

     *                      <dt>alpha</dt><dd>Number from 0 to 1 indicating the opacity of the marker border. The default value is 1.</dd>

     *                      <dt>weight</dt><dd>Number indicating the width of the border. The default value is 0.</dd>

     *                  </dl>

     *              </dd>

     *          </dl>

     *      </dd>

     *      <dt>wick</dt><dd>Properties for the wick, which is a line drawn from the high point of the period to the low point of the period.

     *          <dl>

     *              <dt>color</dt><dd>The color of the wick. The default value is "#000000".</dd>

     *              <dt>weight</dt><dd>The weight of the wick. The default value is 1.</dd>

     *              <dt>alpha</dt><dd>Number from 0 to 1 indicating the opacity of the wick. The default value is 1.</dd>

     *          </dl>

     *      </dd>

     *  </dl>

     *

     * @attribute styles

     * @type Object

     */

};

Y.extend(CandlestickSeries, Y.RangeSeries, {

    /**

     * Draws markers for an Candlestick series.

     *

     * @method

     * @param {Array} xcoords The xcoordinates to be plotted.

     * @param {Array} opencoords The coordinates representing the open values.

     * @param {Array} highcoords The coordinates representing the high values.

     * @param {Array} lowcoords The coordinates representing the low values.

     * @param {Array} closecoords The coordinates representing the close values.

     * @param {Number} len The number of x coordinates to plot.

     * @param {Number} width The width of each candlestick marker.

     * @param {Number} halfwidth Half the width of each candlestick marker.

     * @param {Object} styles The styles for the series.

     * @private

     */

    _drawMarkers: function(xcoords, opencoords, highcoords, lowcoords, closecoords, len, width, halfwidth, styles)

    {

        var upcandle = this.get("upcandle"),

            downcandle = this.get("downcandle"),

            wick = this.get("wick"),

            cx,

            opencoord,

            highcoord,

            lowcoord,

            closecoord,

            left,

            right,

            top,

            bottom,

            leftPadding = styles.padding.left,

            up;

        upcandle.set(styles.upcandle);

        downcandle.set(styles.downcandle);

        wick.set(styles.wick);

        upcandle.clear();

        downcandle.clear();

        wick.clear();

        for(i = 0; i < len; i = i + 1)

        {

            cx = xcoords[i] + leftPadding;

            left = cx - halfwidth;

            right = cx + halfwidth;

            opencoord = opencoords[i];

            highcoord = highcoords[i];

            lowcoord = lowcoords[i];

            closecoord = closecoords[i];

            up = opencoord > closecoord;

            top = up ? closecoord : opencoord;

            bottom = up ? opencoord : closecoord;

            height = bottom - top;

            candle = up ? upcandle : downcandle;

            candle.drawRect(left, top, width, height);

            wick.moveTo(cx, highcoord);

            wick.lineTo(cx, lowcoord);

        }

        upcandle.end();

        downcandle.end();

        wick.end();

        wick.toBack();

    },

    /**

     * Toggles visibility

     *

     * @method _toggleVisible

     * @param {Boolean} visible indicates visibilitye

     * @private

     */

    _toggleVisible: function(visible)

    {

        this.get("upcandle").set("visible", visible);

        this.get("downcandle").set("visible", visible);

        this.get("wick").set("visible", visible);

    },

    /**

     * Destructor implementation for the CartesianSeries class. Calls destroy on all Graphic instances.

     *

     * @method destructor

     * @protected

     */

    destructor: function()

    {

        var upcandle = this.get("upcandle"),

            downcandle = this.get("downcandle"),

            wick = this.get("wick");

        if(upcandle)

        {

            upcandle.destroy();

        }

        if(downcandle)

        {

            downcandle.destroy();

        }

        if(wick)

        {

            wick.destroy();

        }

    },

    /**

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

     * base implementation.

     *

     * @method _getDefaultStyles

     * @return Object

     * @private

     */

    _getDefaultStyles: function()

    {

        var styles = {

            upcandle: {

                fill: {

                    color: "#00aa00",

                    alpha: 1

                },

                stroke: {

                    color: "#000000",

                    alpha: 1,

                    weight: 0

                }

            },

            downcandle: {

                fill: {

                    color: "#aa0000",

                    alpha: 1

                },

                stroke: {

                    color: "#000000",

                    alpha: 1,

                    weight: 0

                }

            },

            wick: {

                stroke: {

                    color: "#000000",

                    alpha: 1,

                    weight: 1

                }

            }

        };

        return this._mergeStyles(styles, CandlestickSeries.superclass._getDefaultStyles());

    }

});

Y.CandlestickSeries = CandlestickSeries;

}, '3.10.3', {"requires": ["series-range"]});