| Class | Description | 
|---|---|
| DataView | A DataView coordinates the asynchronous loading of WSDL WebService and XML Schema definitions in applications created by
 Reify. | 
| Deck | A simple container that implements the policy that at most one of its contained components is visible at any given time. | 
| FlowLayout | Arranges a set of Canvas components into rows, flowing into available space so that different numbers of components may
 appear in each row. | 
| HLayout | A subclass of Layout that applies a sizing policy along the horizontal axis, interpreting  percent and "*" sizes as
 proportions of the width of the layout. | 
| HStack | A subclass of Layout that simply stacks members on the horizontal axis without trying to manage their width. | 
| ImgSectionHeader | SectionHeader class based on an HLayout with  StretchImgbackground. | 
| Layout | Arranges a set of "member" Canvases in horizontal or vertical stacks, applying a layout policy to determine member
 heights and widths. | 
| LayoutSpacer | Add a spacer to a  Layoutthat takes up space just like a normal member,
 without actually drawing anything. | 
| NavigationBar | Navigation control implemented as a horizontal layout showing back and forward controls  and a title. | 
| NavigationBarViewState | Encapsulates state of a  NavigationBar's view. | 
| NavItem | Properties for a navigation item in a  NavPanel. | 
| NavPanel | Provides a list or tree of  navigation items, each of which specifies
 a component to be displayed in a mutually exclusive fashion in thenavDeck. | 
| PortalLayout | A PortalLayout is a special subclass of Layout designed to display  Portletwindows. | 
| PortalPosition | Represents the position of a  Portletwithin aPortalLayout, indicating the column, row, and position within the row. | 
| Portlet | Custom subclass of Window configured to be embedded within a PortalLayout. | 
| ScreenLoader | The ScreenLoader component can be used to load  ComponentXML Screensinto a
 running application. | 
| SectionHeader | Simple SectionHeader class based on a Label with an icon, skinnable via CSS. | 
| SectionStack | A container that manages a list of sections of widgets, each with a header. | 
| SectionStackSection | Section descriptor used by a SectionStack to describe a section of items which are shown or hidden together along with
 their associated header. | 
| SplitPane | A device- and orientation-sensitive layout that implements the common pattern of rendering two panes side-by-side on
 desktop machines and on tablets in landscape orientation, while switching to showing a single pane for handset-sized
 devices or tablets in portrait orientation (this type of behavior is sometimes called "responsive design"). | 
| VLayout | A subclass of Layout that applies a sizing policy along the vertical axis, interpreting  percent and "*" sizes as
 proportions of the height of the layout. | 
| VStack | A subclass of Layout that simply stacks members on the vertical axis without trying to manage their height. |