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YUI.add('series-bar', function (Y, NAME) {
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/**
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* Provides functionality for creating a bar series.
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*
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* @module charts
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* @submodule series-bar
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*/
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/**
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* The BarSeries class renders bars positioned vertically along a category or time axis. The bars'
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* lengths are proportional to the values they represent along a horizontal axis.
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* and the relevant data points.
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*
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* @class BarSeries
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* @extends MarkerSeries
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* @uses Histogram
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* @constructor
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* @param {Object} config (optional) Configuration parameters.
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* @submodule series-bar
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*/
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Y.BarSeries = Y.Base.create("barSeries", Y.MarkerSeries, [Y.Histogram], {
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/**
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* Helper method for calculating the size of markers.
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*
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* @method _getMarkerDimensions
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* @param {Number} xcoord The x-coordinate representing the data point for the marker.
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* @param {Number} ycoord The y-coordinate representing the data point for the marker.
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* @param {Number} calculatedSize The calculated size for the marker. For a `BarSeries` is it the width. For a `ColumnSeries` it is the height.
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* @param {Number} offset Distance of position offset dictated by other marker series in the same graph.
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* @return Object
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* @private
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*/
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_getMarkerDimensions: function(xcoord, ycoord, calculatedSize, offset)
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{
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var config = {
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top: ycoord + offset
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};
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if(xcoord >= this._leftOrigin)
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{
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config.left = this._leftOrigin;
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config.calculatedSize = xcoord - config.left;
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}
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else
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{
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config.left = xcoord;
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config.calculatedSize = this._leftOrigin - xcoord;
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}
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return config;
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},
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/**
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* Resizes and positions markers based on a mouse interaction.
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*
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* @method updateMarkerState
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* @param {String} type state of the marker
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* @param {Number} i index of the marker
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* @protected
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*/
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updateMarkerState: function(type, i)
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{
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if(this._markers && this._markers[i])
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{
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var styles = this._copyObject(this.get("styles").marker),
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markerStyles,
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state = this._getState(type),
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xcoords = this.get("xcoords"),
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ycoords = this.get("ycoords"),
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marker = this._markers[i],
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markers,
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seriesCollection = this.get("seriesTypeCollection"),
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seriesLen = seriesCollection ? seriesCollection.length : 0,
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seriesStyles,
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seriesSize = 0,
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offset = 0,
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renderer,
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n = 0,
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ys = [],
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order = this.get("order"),
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config;
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markerStyles = state === "off" || !styles[state] ? styles : styles[state];
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markerStyles.fill.color = this._getItemColor(markerStyles.fill.color, i);
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markerStyles.border.color = this._getItemColor(markerStyles.border.color, i);
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config = this._getMarkerDimensions(xcoords[i], ycoords[i], styles.height, offset);
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markerStyles.width = config.calculatedSize;
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markerStyles.height = Math.min(this._maxSize, markerStyles.height);
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marker.set(markerStyles);
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for(; n < seriesLen; ++n)
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{
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ys[n] = ycoords[i] + seriesSize;
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seriesStyles = seriesCollection[n].get("styles").marker;
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seriesSize += Math.min(this._maxSize, seriesStyles.height);
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if(order > n)
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{
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offset = seriesSize;
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}
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offset -= seriesSize/2;
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}
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for(n = 0; n < seriesLen; ++n)
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{
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markers = seriesCollection[n].get("markers");
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if(markers)
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{
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renderer = markers[i];
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if(renderer && renderer !== undefined)
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{
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renderer.set("y", (ys[n] - seriesSize/2));
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}
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}
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}
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}
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}
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}, {
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ATTRS: {
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/**
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* Read-only attribute indicating the type of series.
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*
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* @attribute type
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* @type String
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* @default bar
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*/
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type: {
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value: "bar"
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},
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/**
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* Indicates the direction of the category axis that the bars are plotted against.
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*
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* @attribute direction
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* @type String
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*/
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direction: {
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value: "vertical"
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}
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/**
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* Style properties used for drawing markers. This attribute is inherited from `MarkerSeries`. Below are the default values:
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* <dl>
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* <dt>fill</dt><dd>A hash containing the following values:
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* <dl>
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* <dt>color</dt><dd>Color of the fill. The default value is determined by the order of the series on the graph. The color
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* will be retrieved from the below array:<br/>
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* `["#66007f", "#a86f41", "#295454", "#996ab2", "#e8cdb7", "#90bdbd","#000000","#c3b8ca", "#968373", "#678585"]`
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* </dd>
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* <dt>alpha</dt><dd>Number from 0 to 1 indicating the opacity of the marker fill. The default value is 1.</dd>
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* </dl>
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* </dd>
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* <dt>border</dt><dd>A hash containing the following values:
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* <dl>
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* <dt>color</dt><dd>Color of the border. The default value is determined by the order of the series on the graph. The color
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* will be retrieved from the below array:<br/>
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* `["#205096", "#b38206", "#000000", "#94001e", "#9d6fa0", "#e55b00", "#5e85c9", "#adab9e", "#6ac291", "#006457"]`
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* <dt>alpha</dt><dd>Number from 0 to 1 indicating the opacity of the marker border. The default value is 1.</dd>
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* <dt>weight</dt><dd>Number indicating the width of the border. The default value is 1.</dd>
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* </dl>
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* </dd>
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* <dt>height</dt><dd>indicates the width of the marker. The default value is 12.</dd>
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* <dt>over</dt><dd>hash containing styles for markers when highlighted by a `mouseover` event. The default
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* values for each style is null. When an over style is not set, the non-over value will be used. For example,
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* the default value for `marker.over.fill.color` is equivalent to `marker.fill.color`.</dd>
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* </dl>
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*
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* @attribute styles
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* @type Object
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*/
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}
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});
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}, '3.18.1', {"requires": ["series-marker", "series-histogram-base"]});
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