LayoutProvider

Type Parameters:

V - the vertex type

E - the edge type

G - the graph type

All Known Subinterfaces:

LayoutProviderExtensionPoint<V,E,G>

All Known Implementing Classes:

AbstractLayoutProvider, JungLayoutProvider
```
public interface LayoutProvider<V extends VisualVertex,E extends VisualEdge<V>,G extends VisualGraph<V,E>>
```
A layout provider creates VisualGraphLayout instances. This class provides a name and icon for use in a UI. These features can be used to create a menu of layouts that may be applied.
The pattern of usage for this class is for it to create the layout that it represents and then to apply the locations of that layout to the vertices (and edges, in the case of articulating edges) of the graph before returning the new layout.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`javax.swing.Icon`	`getActionIcon()`	Returns an icon that can be used to show the provider a menu or toolbar.
`VisualGraphLayout<V,E>`	`getLayout(G graph, TaskMonitor monitor)`	Returns a new instance of the layout that this class provides
`java.lang.String`	`getLayoutName()`	Returns the name of this layout
`int`	`getPriorityLevel()`	Returns an arbitrary value that is relative to other LayoutProviders.

- Method Detail
  - getLayout
```
VisualGraphLayout<V,E> getLayout(G graph,
                                       TaskMonitor monitor)
                                throws CancelledException
```
    Returns a new instance of the layout that this class provides
    
    Parameters:
    
    graph - the graph
    
    monitor - a task monitor
    
    Returns:
    
    the new layout
    
    Throws:
    
    CancelledException - if the monitor was cancelled
  - getLayoutName
```
java.lang.String getLayoutName()
```
    Returns the name of this layout
    
    Returns:
    
    the name of this layout
  - getActionIcon
```
javax.swing.Icon getActionIcon()
```
    Returns an icon that can be used to show the provider a menu or toolbar. This may return null, as an icon is not a requirement.
    
    Returns:
    
    an icon that can be used to show the provider a menu or toolbar
  - getPriorityLevel
```
int getPriorityLevel()
```
    Returns an arbitrary value that is relative to other LayoutProviders. The higher the value the more preferred the provider will be over other providers.
    
    Returns:
    
    the priority