dsto.dfc.swing.commands
Class CompositeCmdMenuProvider

java.lang.Object
  dsto.dfc.swing.commands.CompositeCmdMenuProvider

All Implemented Interfaces:

CustomMenuProvider, ActionListener, EventListener

public class CompositeCmdMenuProvider
extends Object
implements CustomMenuProvider, ActionListener

Implements the command menu provider interface for composite commands.

Version:

$Revision$

Author:

shahinm

Field Summary

protected ButtonGroup	buttonGroup
protected ArrayList	changeListeners
protected CompositeCommand	compositeCmd

Constructor Summary

CompositeCmdMenuProvider(CompositeCommand command)

Method Summary

void	actionPerformed(ActionEvent e)
void	addChangeListener(ChangeListener l) Custom menu providers should fire change events when the menu UI needs to be updated.
protected JMenuItem	createMenuItem(ButtonGroup itemButtonGroup, Command childCmd) Create a menu item for the child command
List	createMenuItems() Create the menu items that represent the UI for the command.
void	destroyMenuItems(List menuItems) Destroy menu items created by createMenuItems ().
protected void	fireStateChanged()
protected void	fireStateChanged(ChangeEvent e) Informs all the change listeners that the state of this menu provider has changed.
boolean	isSelected(Command childCmd)
void	removeChangeListener(ChangeListener l)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

compositeCmd

protected CompositeCommand compositeCmd

changeListeners

protected transient ArrayList changeListeners

buttonGroup

protected ButtonGroup buttonGroup

Constructor Detail

CompositeCmdMenuProvider

public CompositeCmdMenuProvider(CompositeCommand command)

Method Detail

isSelected

public boolean isSelected(Command childCmd)

createMenuItems

public List createMenuItems()

Description copied from interface: CustomMenuProvider

Create the menu items that represent the UI for the command.

Specified by:

createMenuItems in interface CustomMenuProvider

Returns:

A new list of JComponent's to be added to the menu for the command.

destroyMenuItems

public void destroyMenuItems(List menuItems)

Description copied from interface: CustomMenuProvider

Destroy menu items created by createMenuItems ().

Specified by:

destroyMenuItems in interface CustomMenuProvider

createMenuItem

protected JMenuItem createMenuItem(ButtonGroup itemButtonGroup,
                                   Command childCmd)

Create a menu item for the child command

Parameters:

itemButtonGroup - the button group to add the menu item to.

childCmd - the command that a menu item is to be created for.

Returns:

The JMenuItem that represents the child command.

actionPerformed

public void actionPerformed(ActionEvent e)

Specified by:

actionPerformed in interface ActionListener

removeChangeListener

public void removeChangeListener(ChangeListener l)

Specified by:

removeChangeListener in interface CustomMenuProvider

addChangeListener

public void addChangeListener(ChangeListener l)

Description copied from interface: CustomMenuProvider

Custom menu providers should fire change events when the menu UI needs to be updated. This event will trigger any interested listeners to destroy old menu items (destroyMenuItems ()) and create new ones (createMenuItems ()).

Specified by:

addChangeListener in interface CustomMenuProvider

fireStateChanged

protected void fireStateChanged()

fireStateChanged

protected void fireStateChanged(ChangeEvent e)

Informs all the change listeners that the state of this menu provider has changed.