com.bbn.openmap.proj
Interface ProjectionStackTrigger

All Known Implementing Classes:

EmbeddedNavPanel, ProjectionStackTool, ProjMapBeanKeyListener

public interface ProjectionStackTrigger

Provides Projection Stack input by firing BackProkCmd and ForwardProjCmd commands, which cause it to set a projection in the MapBean. The commands used when firing an action event should be the ones listed in the ProjectionStack

Method Summary

void	addActionListener(java.awt.event.ActionListener al) Add an ActionListener for events that trigger events to shift the Projection stack.
void	removeActionListener(java.awt.event.ActionListener al) Remove an ActionListener that receives events that trigger events to shift the Projection stack.
void	updateProjectionStackStatus(boolean containsBackProjections, boolean containsForwardProjections) To receive a status to let the trigger know if any projections in the forward or backward stacks exist, possibly to disable any gui widgets.

Method Detail

addActionListener

void addActionListener(java.awt.event.ActionListener al)

Add an ActionListener for events that trigger events to shift the Projection stack.

removeActionListener

void removeActionListener(java.awt.event.ActionListener al)

Remove an ActionListener that receives events that trigger events to shift the Projection stack.

updateProjectionStackStatus

void updateProjectionStackStatus(boolean containsBackProjections,
                                 boolean containsForwardProjections)

To receive a status to let the trigger know if any projections in the forward or backward stacks exist, possibly to disable any gui widgets.

Parameters:

containsBackProjections - there is at least one past projection in the back cache.

containsForwardProjections - there is at least one future projection in the forward cache. Used when a past projection is being used.