| Package | Description | 
|---|---|
| com.google.gwt.activity.shared | Classes used to implement app navigation. | 
| com.google.gwt.logging.client | Log handlers and related classes for java.util.logging support in GWT. | 
| com.google.gwt.user.client.ui | Widgets, Panels, and other user-interface classes. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | ActivityManager. setDisplay(AcceptsOneWidget display)Sets the display for the receiver, and has the side effect of starting or
 stopping its monitoring the event bus for place change events. | 
| void | Activity. start(AcceptsOneWidget panel,
     EventBus eventBus)Called when the Activity should ready its widget for the user. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | LoggingPopupA simple popup to show log messages, which can be resized, minimized, and
 dragged to a different location. | 
| Modifier and Type | Interface and Description | 
|---|---|
| interface  | HasOneWidgetImplemented by panels that have only one widget. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | CustomScrollPanelA custom version of the  ScrollPanelthat allows user provided
 scrollbars. | 
| class  | DeckLayoutPanelA panel that displays all of its child widgets in a 'deck', where only one
 can be visible at a time. | 
| class  | DecoratedPopupPanel
 A  PopupPanelthat wraps its content in a 3x3 grid, which allows users
 to add rounded corners. | 
| class  | DecoratorPanel
 A  SimplePanelthat wraps its contents in stylized boxes, which can be
 used to add rounded corners to aWidget. | 
| class  | DialogBoxA form of popup that has a caption area at the top and can be dragged by the
 user. | 
| class  | FocusPanelA simple panel that makes its contents focusable, and adds the ability to
 catch mouse and keyboard events. | 
| class  | FormPanelA panel that wraps its contents in an HTML <FORM> element. | 
| class  | LazyPanelConvenience class to help lazy loading. | 
| class  | PopupPanelA panel that can "pop up" over other widgets. | 
| class  | ResizeLayoutPanelA simple panel that  ProvidesResizeto its one child, but does notRequiresResize. | 
| class  | ScrollPanelA simple panel that wraps its contents in a scrollable area. | 
| class  | SimpleLayoutPanelA simple panel that  ProvidesResizeto its one child. | 
| class  | SimplePanelBase class for panels that contain only one widget. |