/**
 * 单选按钮组
 *
 * Created by GUY on 2015/9/7.
 * @class BI.Segment
 * @extends BI.Widget
 */
BI.Segment = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.Segment.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-segment",
            items: [],
            height: 24
        });
    },
    _init: function () {
        BI.Segment.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        this.buttonGroup = BI.createWidget({
            element: this,
            type: "bi.button_group",
            value: o.value,
            items: BI.createItems(o.items, {
                type: "bi.segment_button",
                height: o.height - 2,
                whiteSpace: o.whiteSpace
            }),
            layout: [
                {
                    type: "bi.center"
                }
            ]
        });
        this.buttonGroup.on(BI.Controller.EVENT_CHANGE, function () {
            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
        });
        this.buttonGroup.on(BI.ButtonGroup.EVENT_CHANGE, function (value, obj) {
            self.fireEvent(BI.Segment.EVENT_CHANGE, value, obj);
        });
    },

    setValue: function (v) {
        this.buttonGroup.setValue(v);
    },

    setEnabledValue: function (v) {
        this.buttonGroup.setEnabledValue(v);
    },

    getValue: function () {
        return this.buttonGroup.getValue();
    }
});
BI.Segment.EVENT_CHANGE = "EVENT_CHANGE";
BI.shortcut("bi.segment", BI.Segment);