org.esa.beam.framework.ui.command
Interface CommandStateListener

All Superinterfaces:

EventListener

All Known Subinterfaces:

CommandListener

All Known Implementing Classes:

CommandAdapter

public interface CommandStateListener
extends EventListener

The listener for receiving command events from ExecCommands, ToolCommands and CommandGroups.

This listener contains the updateState method which is called each time a command should check and eventually update its state. When you create a command (or command group) you provide this listener.

Method Summary

void	updateState(CommandEvent event) Called when a command should update its state.

Method Detail

updateState

void updateState(CommandEvent event)

Called when a command should update its state.

This method can contain some code which analyzes the underlying element and makes a decision whether this item or group should be made visible/invisible or enabled/disabled etc.

Parameters:

event - the command event