| Interface | Description | 
|---|---|
| Animation | 
 An animation that can be played in series of steps. 
 | 
| FrameAttributes | 
 Attributes to control how a  
ScrollFrame is rendered. | 
| Scrollable | 
 An object that can be rendered in a  
ScrollFrame. | 
| Tree | 
 A tree of objects, drawn in the World Window, that the user can interact with. 
 | 
| TreeAttributes | 
 Attributes to control how a  
Tree is rendered. | 
| TreeLayout | 
 Handles rendering a  
Tree. | 
| TreeModel | 
 Contents of a  
Tree. | 
| TreeNode | 
 Describes a node in a  
Tree. | 
| Class | Description | 
|---|---|
| BasicFrameAttributes | 
 Basic implementation of  
FrameAttributes set. | 
| BasicTree | 
 Basic implementation of a  
Tree control. | 
| BasicTreeAttributes | 
 Basic implementation of  
TreeAttributes set. | 
| BasicTreeLayout | 
 Layout that draws a  
Tree similar to a file browser tree. | 
| BasicTreeLayout.NodeLayout | 
 Class to hold information about how a tree node is laid out. 
 | 
| BasicTreeLayout.TextCacheKey | 
 Cache key for cache text bound cache. 
 | 
| BasicTreeModel | 
 Basic implementation of a  
TreeModel. | 
| BasicTreeNode | 
 Default implementation of a  
TreeNode. | 
| DragControl | 
 A  
TreeHotSpot that can handle drag events. | 
| FrameResizeControl | 
 A screen control for resizing a frame. 
 | 
| ScrollBar | 
 A scrollbar component. 
 | 
| ScrollFrame | 
 A frame that can scroll its contents. 
 | 
| TreeHotSpot | 
 An area of a  
Tree that can receive select and mouse events. | 
| TreePath | 
 A path to a node in a  
Tree. | 
| TreeUtil | 
 Utility methods for drawing tree controls. 
 | 
| WindowShadeAnimation | 
 Animation to minimize a frame with a window shade effect. 
 | 
A tree control drawn in the world window. The user can interact with the tree. The basic tree implementation renders the tree similar to a file browser tree, but other layouts can be provided.
See TreeControl for an example of using the tree. LayerTreeUsage is an example of using the tree control to display a tree of
   layers.