* A Component or Element by which to position this component according to the {@link #defaultAlign}.* @cfg {Ext.plugin.Abstract[]/Ext.plugin.Abstract/Object[]/Object/Ext.enums.Plugin[]/Ext.enums.Plugin} plugins* The data used by {@link #renderTpl} in addition to the following property values of the component:* Fires after the component is shown when calling the {@link Ext.Component#method-show show} method.* - **a string** : it is assumed to be the id of an existing element and is used as the component id* - **anything else** : it is assumed to be a standard config object and is applied to the component* @param {Number/undefined} oldHeight The old height, or `undefined` if this was the initial layout.