/** * @abstract * @class Ext.chart.axis.segmenter.Segmenter * * Interface for a segmenter in an Axis. A segmenter defines the operations you can do to a specific * data type. * * See {@link Ext.chart.axis.Axis}. * */Ext.define('Ext.chart.axis.segmenter.Segmenter', { config: { /** * @cfg {Ext.chart.axis.Axis} axis The axis that the Segmenter is bound. */ axis: null }, constructor: function(config) { this.initConfig(config); }, /** * This method formats the value. * * @param {*} value The value to format. * @param {Object} context Axis layout context. * @return {String} */ renderer: function(value, context) { return String(value); }, /** * Convert from any data into the target type. * @param {*} value The value to convert from * @return {*} The converted value. */ from: function(value) { return value; }, /** * @method * Returns the difference between the min and max value based on the given unit scale. * * @param {*} min The smaller value. * @param {*} max The larger value. * @param {*} unit The unit scale. Unit can be any type. * @return {Number} The number of `unit`s between min and max. It is the minimum n that * min + n * unit >= max. */ diff: Ext.emptyFn, /** * @method * Align value with step of units. * For example, for the date segmenter, if the unit is "Month" and step is 3, the value will be * aligned by seasons. * * @param {*} value The value to be aligned. * @param {Number} step The step of units. * @param {*} unit The unit. * @return {*} Aligned value. */ align: Ext.emptyFn, /** * @method * Add `step` `unit`s to the value. * @param {*} value The value to be added. * @param {Number} step The step of units. Negative value are allowed. * @param {*} unit The unit. */ add: Ext.emptyFn, /** * @method * Given a start point and estimated step size of a range, determine the preferred step size. * * @param {*} start The start point of range. * @param {*} estStepSize The estimated step size. * @return {Object} Return the step size by an object of step x unit. * @return {Number} return.step The step count of units. * @return {Number|Object} return.unit The unit. */ preferredStep: Ext.emptyFn});