Class RadioAction

      object --+            
               |            
debug.debugmixin --+        
                   |        
        SelectAction --+    
                       |    
              ListAction --+
                           |
                          RadioAction

Known Subclasses:

• buffers.BufferListSort
• , hsi.hsi_major_mode.ContrastFilterAction
• , hsi.hsi_major_mode.CubeViewAction
• , hsi.hsi_major_mode.MedianFilterAction

Display a group of radio buttons in a menu bar.

This is used to display a list of radio items while only requiring a single action to display the entire list.

The subclass should override the getItems method to return the list of items to display. These items should be strings. Like its ListAction parent, the isEnabled method sets the enable state for all the items in the radio list.

The subclass should also override getIndex to return the position within the list of the selected item in the radio list.

If the items change their text strings, you should add the OnDemandActionMixin and override the getHash method to indicate when the user interface should redraw the menu.