Constructor # new ZoomController() 缩放控制 Author: xyj Extends Widget Members # enable Overrides: Widget#enable Type: string # readonly state 状态 - 枚举值 [abled |disabled] Overrides: Widget#state Type: string # readonly type 类型 Methods # hide() 隐藏组件 Overrides: Widget#hide # install() 将组件实例化到viewer Overrides: Widget#install See: Viewer # setContent(content) → {Widget} 设置组件内容 Parameters: Name Type Description content String | Element 需要设置的内容 Overrides: Widget#setContent Returns: 返回自身，链式调用 Type: Widget