/**
 * @class Ext.slider.Single
 * @extends Ext.slider.MultiSlider
 * Slider which supports vertical or horizontal orientation, keyboard adjustments,
 * configurable snapping, axis clicking and animation. Can be added as an item to
 * any container. Example usage:

new Ext.slider.Single({
    renderTo: Ext.getBody(),
    width: 200,
    value: 50,
    increment: 10,
    minValue: 0,
    maxValue: 100
});

 * The class Ext.slider.Single is aliased to Ext.Slider for backwards compatibility.
 */
Ext.define('Ext.slider.Single', {
    extend: 'Ext.slider.Multi',
    alias: ['widget.slider', 'widget.sliderfield'],
    alternateClassName: ['Ext.Slider', 'Ext.form.SliderField'],

    constructor: function(config) {
      config = config || {};

      Ext.applyIf(config, {
          values: [config.value || 0]
      });

      Ext.slider.Single.superclass.constructor.call(this, config);
    },

    
/**
     * Returns the current value of the slider
     * @return {Number} The current value of the slider
     */
    getValue: function() {
        //just returns the value of the first thumb, which should be the only one in a single slider
        return Ext.slider.Single.superclass.getValue.call(this, 0);
    },

    
/**
     * Programmatically sets the value of the Slider. Ensures that the value is constrained within
     * the minValue and maxValue.
     * @param {Number} value The value to set the slider to. (This will be constrained within minValue and maxValue)
     * @param {Boolean} animate Turn on or off animation, defaults to true
     */
    setValue: function(value, animate) {
        var args = Ext.toArray(arguments),
            len  = args.length;

        //this is to maintain backwards compatiblity for sliders with only one thunb. Usually you must pass the thumb
        //index to setValue, but if we only have one thumb we inject the index here first if given the multi-slider
        //signature without the required index. The index will always be 0 for a single slider
        if (len == 1 || (len <= 3 && typeof arguments[1] != 'number')) {
            args.unshift(0);
        }

        return Ext.slider.Single.superclass.setValue.apply(this, args);
    },

    // private
    getNearest : function(){
        // Since there's only 1 thumb, it's always the nearest
        return this.thumbs[0];
    }
});