abstractbutton.java

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  public String getText()
  {
    return text;
  }

  /**
   * Set the button's "label" property. This property is synonymous with the
   * "text" property.
   *
   * @param label The new "label" property
   *
   * @deprecated use <code>setText(text)</code>
   */
  public void setLabel(String label)
  {
    setText(label);
  }

  /**
   * Return the button's "label" property. This property is synonymous with
   * the "text" property.
   *
   * @return The current "label" property
   *
   * @deprecated use <code>getText()</code>
   */
  public String getLabel()
  {
    return getText();
  }

  /**
   * Set the button's "text" property. This property is synonymous with the
   * "label" property.
   *
   * @param t The new "text" property
   */
  public void setText(String t)
  {
    if (text == t)
      return;
    
    String old = text;
    text = t;
    firePropertyChange(TEXT_CHANGED_PROPERTY, old, t);
    revalidate();
    repaint();
  }

  /**
   * Set the value of the {@link #iconTextGap} property.
   * 
   * @param i The new value of the property
   */
  public void setIconTextGap(int i)
  {
    if (iconTextGap == i)
      return;
    
    int old = iconTextGap;
    iconTextGap = i;
    fireStateChanged();
    revalidate();
    repaint();
  }

  /**
   * Get the value of the {@link #iconTextGap} property.
   *
   * @return The current value of the property
   */
  public int getIconTextGap()
  {
    return iconTextGap;
  }

  /**
   * Return the button's "margin" property, which is an {@link Insets} object
   * describing the distance between the button's border and its text and
   * icon.
   *
   * @return The current "margin" property
   */
  public Insets getMargin()
  {
    return margin;
  }

  /**
   * Set the button's "margin" property, which is an {@link Insets} object
   * describing the distance between the button's border and its text and
   * icon.
   *
   * @param m The new "margin" property
   */
  public void setMargin(Insets m)
  {
    if (margin == m)
      return;
    
    Insets old = margin;
    margin = m;
    firePropertyChange(MARGIN_CHANGED_PROPERTY, old, m);
    revalidate();
    repaint();
  }

  /**
   * Return the button's "pressedIcon" property. The look and feel class
   * should paint this icon when the "pressed" property of the button's
   * {@link ButtonModel} is <code>true</code>. This property may be
   * <code>null</code>, in which case the default icon is used.
   *
   * @return The current "pressedIcon" property
   */
  public Icon getPressedIcon()
  {
    return pressed_icon;
  }

  /**
   * Set the button's "pressedIcon" property. The look and feel class
   * should paint this icon when the "pressed" property of the button's
   * {@link ButtonModel} is <code>true</code>. This property may be
   * <code>null</code>, in which case the default icon is used.
   *
   * @param pressedIcon The new "pressedIcon" property
   */
  public void setPressedIcon(Icon pressedIcon)
  {
    if (pressed_icon == pressedIcon)
      return;
    
    Icon old = pressed_icon;
    pressed_icon = pressedIcon;
    firePropertyChange(PRESSED_ICON_CHANGED_PROPERTY, old, pressed_icon);
    revalidate();
    repaint();
  }

  /**
   * Return the button's "disabledIcon" property. The look and feel class
   * should paint this icon when the "enabled" property of the button's
   * {@link ButtonModel} is <code>false</code>. This property may be
   * <code>null</code>, in which case an icon is constructed, based on the
   * default icon.
   *
   * @return The current "disabledIcon" property
   */
  public Icon getDisabledIcon()
  {
    if (disabeldIcon == null && default_icon instanceof ImageIcon)
      {
        Image iconImage = ((ImageIcon) default_icon).getImage();
        Image grayImage = GrayFilter.createDisabledImage(iconImage);
        disabeldIcon = new ImageIcon(grayImage);
      }
      
    return disabeldIcon;
  }

  /**
   * Set the button's "disabledIcon" property. The look and feel class should
   * paint this icon when the "enabled" property of the button's {@link
   * ButtonModel} is <code>false</code>. This property may be
   * <code>null</code>, in which case an icon is constructed, based on the
   * default icon.
   *
   * @param d The new "disabledIcon" property
   */
  public void setDisabledIcon(Icon d)
  {
    disabeldIcon = d;
    revalidate();
    repaint();
  }

  /**
   * Return the button's "paintFocus" property. This property controls
   * whether or not the look and feel class will paint a special indicator
   * of focus state for the button. If it is false, the button still paints
   * when focused, but no special decoration is painted to indicate the
   * presence of focus.
   *
   * @return The current "paintFocus" property
   */
  public boolean isFocusPainted()
  {
    return focusPainted;
  }

  /**
   * Set the button's "paintFocus" property. This property controls whether
   * or not the look and feel class will paint a special indicator of focus
   * state for the button. If it is false, the button still paints when
   * focused, but no special decoration is painted to indicate the presence
   * of focus.
   *
   * @param p The new "paintFocus" property
   */
  public void setFocusPainted(boolean p)
  {
    if (focusPainted == p)
      return;
    
    boolean old = focusPainted;
    focusPainted = p;
    firePropertyChange(FOCUS_PAINTED_CHANGED_PROPERTY, old, p);
    revalidate();
    repaint();
  }

  /**
   * Verifies that a particular key is one of the valid constants used for
   * describing horizontal alignment and positioning. The valid constants
   * are the following members of {@link SwingConstants}:
   * <code>RIGHT</code>, <code>LEFT</code>, <code>CENTER</code>,
   * <code>LEADING</code> or <code>TRAILING</code>.
   *
   * @param key The key to check
   * @param exception A message to include in an IllegalArgumentException
   *
   * @return the value of key
   *
   * @throws IllegalArgumentException If key is not one of the valid constants
   *
   * @see #setHorizontalTextPosition(int)
   * @see #setHorizontalAlignment(int)
   */
  protected  int checkHorizontalKey(int key, String exception)
  {
    switch (key)
      {
      case SwingConstants.RIGHT:
      case SwingConstants.LEFT:
      case SwingConstants.CENTER:
      case SwingConstants.LEADING:
      case SwingConstants.TRAILING:
        break;
      default:
        throw new IllegalArgumentException(exception);
      }
    return key;
  }

  /**
   * Verifies that a particular key is one of the valid constants used for
   * describing vertical alignment and positioning. The valid constants are
   * the following members of {@link SwingConstants}: <code>TOP</code>,
   * <code>BOTTOM</code> or <code>CENTER</code>.
   *
   * @param key The key to check
   * @param exception A message to include in an IllegalArgumentException
   *
   * @return the value of key
   *
   * @throws IllegalArgumentException If key is not one of the valid constants
   *
   * @see #setVerticalTextPosition(int)
   * @see #setVerticalAlignment(int)
   */
  protected  int checkVerticalKey(int key, String exception)
  {
    switch (key)
      {
      case SwingConstants.TOP:
      case SwingConstants.BOTTOM:
      case SwingConstants.CENTER:
        break;
      default:
        throw new IllegalArgumentException(exception);
      }
    return key;
  }

  /**
   * Configure various properties of the button by reading properties
   * of an {@link Action}. The mapping of properties is as follows:
   *
   * <table>
   *
   * <tr><th>Action keyed property</th> <th>AbstractButton property</th></tr>
   *
   * <tr><td>NAME                 </td> <td>text                   </td></tr>
   * <tr><td>SMALL_ICON           </td> <td>icon                   </td></tr>
   * <tr><td>SHORT_DESCRIPTION    </td> <td>toolTipText            </td></tr>
   * <tr><td>MNEMONIC_KEY         </td> <td>mnemonic               </td></tr>
   * <tr><td>ACTION_COMMAND_KEY   </td> <td>actionCommand          </td></tr>
   *
   * </table>
   *
   * <p>In addition, this method always sets the button's "enabled" property to
   * the value of the Action's "enabled" property.</p>
   *
   * <p>If the provided Action is <code>null</code>, the text, icon, and
   * toolTipText properties of the button are set to <code>null</code>, and
   * the "enabled" property is set to <code>true</code>; the mnemonic and
   * actionCommand properties are unchanged.</p>
   *
   * @param a An Action to configure the button from
   */
  protected void configurePropertiesFromAction(Action a)
  {
    if (a == null)
      {
        setText(null);
        setIcon(null);
        setEnabled(true);
        setToolTipText(null);
      }
    else
      {
        setText((String) (a.getValue(Action.NAME)));
        setIcon((Icon) (a.getValue(Action.SMALL_ICON)));
        setEnabled(a.isEnabled());
        setToolTipText((String) (a.getValue(Action.SHORT_DESCRIPTION)));
        if (a.getValue(Action.MNEMONIC_KEY) != null)
          setMnemonic(((Integer) (a.getValue(Action.MNEMONIC_KEY))).intValue());
        String actionCommand = (String) (a.getValue(Action.ACTION_COMMAND_KEY));

        // Set actionCommand to button's text by default if it is not specified
        if (actionCommand != null)
          setActionCommand((String) (a.getValue(Action.ACTION_COMMAND_KEY)));
        else
          setActionCommand(getText());
      }
  }

  /**
   * <p>A factory method which should return an {@link ActionListener} that
   * propagates events from the button's {@link ButtonModel} to any of the
   * button's ActionListeners. By default, this is an inner class which
   * calls {@link AbstractButton#fireActionPerformed} with a modified copy
   * of the incoming model {@link ActionEvent}.</p>
   *
   * <p>The button calls this method during construction, stores the
   * resulting ActionListener in its <code>actionListener</code> member
   * field, and subscribes it to the button's model. If the button's model
   * is changed, this listener is unsubscribed from the old model and
   * subscribed to the new one.</p>
   *
   * @return A new ActionListener 
   */
  protected  ActionListener createActionListener()
  {
    return new ActionListener()
      {
        public void actionPerformed(ActionEvent e)
        {
          AbstractButton.this.fireActionPerformed(e);
        }
      };
  }

  /**
   * <p>A factory method which should return a {@link PropertyChangeListener}
   * that accepts changes to the specified {@link Action} and reconfigure
   * the {@link AbstractButton}, by default using the {@link
   * #configurePropertiesFromAction} method.</p>
   *
   * <p>The button calls this method whenever a new Action is assigned to
   * the button's "action" property, via {@link #setAction}, and stores the
   * resulting PropertyChangeListener in its
   * <code>actionPropertyChangeListener</code> member field. The button
   * then subscribes the listener to the button's new action. If the
   * button's action is changed subsequently, the listener is unsubscribed
   * from the old action and subscribed to the new one.</p>
   *
   * @param a The Action which will be listened to, and which should be 
   * the same as the source of any PropertyChangeEvents received by the
   * new listener returned from this method.
   *
   * @return A new PropertyChangeListener
   */
  protected  PropertyChangeListener createActionPropertyChangeListener(Action a)
  {
    return new PropertyChangeListener()
      {
        public void propertyChange(PropertyChangeEvent e)
        {
          Action act = (Action) (e.getSource());
          if (e.getPropertyName().equals("enabled"))
            setEnabled(act.isEnabled());
          else if (e.getPropertyName().equals(Action.NAME))
            setText((String) (act.getValue(Action.NAME)));
          else if (e.getPropertyName().equals(Action.SMALL_ICON))
            setIcon((Icon) (act.getValue(Action.SMALL_ICON)));
          else if (e.getPropertyName().equals(Action.SHORT_DESCRIPTION))
            setToolTipText((String) (act.getValue(Action.SHORT_DESCRIPTION)));
          else if (e.getPropertyName().equals(Action.MNEMONIC_KEY))
            if (act.getValue(Action.MNEMONIC_KEY) != null)
              setMnemonic(((Integer) (act.getValue(Action.MNEMONIC_KEY)))
                          .intValue());
          else if (e.getPropertyName().equals(Action.ACTION_COMMAND_KEY))
            setActionCommand((String) (act.getValue(Action.ACTION_COMMAND_KEY)));
        }
      };
  }

  /**
   * <p>Factory method which creates a {@link ChangeListener}, used to
   * subscribe to ChangeEvents from the button's model. Subclasses of
   * AbstractButton may wish to override the listener used to subscribe to
   * such ChangeEvents. By default, the listener just propagates the
   * {@link ChangeEvent} to the button's ChangeListeners, via the {@link
   * AbstractButton#fireStateChanged} method.</p>
   *
   * <p>The button calls this method during construction, stores the