com.jstatcom.component
Class CardPanelAction

java.lang.Object
  javax.swing.AbstractAction
      com.jstatcom.component.CardPanelAction

All Implemented Interfaces:

java.awt.event.ActionListener, java.io.Serializable, java.lang.Cloneable, java.util.EventListener, javax.swing.Action

public final class CardPanelAction
extends javax.swing.AbstractAction

An action for the task of showing a "card" component in a CardDisplayPanel.

The "card" component is only constructed when getComponent is called the first time. This way the component gets only created when the respective CardPanelAction is actually called. This may led to faster program start.

Author:

A. Benkwitz, M. Kraetzig

See Also:

CardDisplayPanel, Serialized Form

Field Summary

Fields inherited from interface javax.swing.Action

ACCELERATOR_KEY, ACTION_COMMAND_KEY, DEFAULT, DISPLAYED_MNEMONIC_INDEX_KEY, LARGE_ICON_KEY, LONG_DESCRIPTION, MNEMONIC_KEY, NAME, SELECTED_KEY, SHORT_DESCRIPTION, SMALL_ICON

Constructor Summary

CardPanelAction(java.lang.String className, CardDisplayPanel parent, boolean enabled, java.lang.String name)
Creates an action object that constructs a component on demand according to the arguments.

CardPanelAction(java.lang.String className, CardDisplayPanel parent, boolean enabled, java.lang.String name, javax.swing.Icon icon)
Creates an action object that constructs a component on demand according to the arguments.

Method Summary

void	actionPerformed(java.awt.event.ActionEvent arg1) Invoked when this action is called.
javax.swing.JComponent	getComponent() Gets the component defined via className in the constructor.

Methods inherited from class javax.swing.AbstractAction

addPropertyChangeListener, getKeys, getPropertyChangeListeners, getValue, isEnabled, putValue, removePropertyChangeListener, setEnabled

Methods inherited from class java.lang.Object

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

Constructor Detail

CardPanelAction

public CardPanelAction(java.lang.String className,
                       CardDisplayPanel parent,
                       boolean enabled,
                       java.lang.String name)

Creates an action object that constructs a component on demand according to the arguments.

Parameters:

className - the string with the fully qualified class name of the component to construct when this action is called

parent - the parent panel

enabled - true if this action should be enabled

name - the name of this action

Throws:

java.lang.IllegalArgumentException - if (className == null) or if (parent == null)

CardPanelAction

public CardPanelAction(java.lang.String className,
                       CardDisplayPanel parent,
                       boolean enabled,
                       java.lang.String name,
                       javax.swing.Icon icon)

Creates an action object that constructs a component on demand according to the arguments.

Parameters:

className - the string with the fully qualified class name of the component to construct when this action is called

parent - the parent panel

enabled - true if this action should be enabled

name - the name of this action

icon - an icon to be displayed by components taking this AbstractAction as argument

Throws:

java.lang.IllegalArgumentException - if (className == null) or if (parent == null)

Method Detail

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent arg1)

Invoked when this action is called. Creates the respective component if it has not been created before and calls showCard of the parent CardDisplayPanel.

Parameters:

arg1 - argument is ignored and can be null

getComponent

public javax.swing.JComponent getComponent()

Gets the component defined via className in the constructor. If this method is called the first time, the component is first created.

Returns:

the component that has been defined via its class name in the constructor of this action, if the object construction failes, am empty JPanel with a message is returned