component.java

java virtual machince kaffe

        /**
            * The associated graphics configuration.
         *
         * @since 1.4
         */
        transient GraphicsConfiguration graphicsConfig;

        /**
            * The buffer strategy for repainting.
         *
         * @since 1.4
         */
        transient BufferStrategy bufferStrategy;

        /**
            * true if requestFocus was called on this component when its
         * top-level ancestor was not focusable.
         */
        private transient FocusEvent pendingFocusRequest = null;


static class TreeLock
{
}
/*
 * JDK serialization.
 *  While this is serializing something like what JDK expects, we don't handle the more complex
 *  things like Properties or popupMenus yet (because I'm not sure how to convert what we do
 *  into what they expect).
 */
//	private Color bgColor;
//	private java.beans.PropertyChangeSupport changeSupport;
//	private int componentSerializedDataVersion;
//	private Cursor cursor;
//	private boolean enabled;
//	private long eventMask;
//	private Font font;
//	private Color foreground;
//	private boolean hasFocus;
//	private int height;
//	private boolean isPacked;
//	private Locale locale;
//	private Dimension minSize;
//	private String name;
//	private boolean nameExplicitlySet;
//	private boolean newEventsOnly;
//	private Font peerFont;
//	private Vector popups;
//	private Dimension prefSize;
//	private boolean valid;
//	private boolean visible;
//	private int width;
//	private int x;
//	private int y;
// 
// private void readDefaultObject() {
// 	setBackground(bgColor);
// 	setCursor(cursor);
// 	setEnabled(enabled);
// 	enableEvents(eventMask);
// 	setFont(font);
// 	setForeground(foreground);
// 	setSize(width, height);
// 	setLocale(locale);
// 	setName(name);
// 	setLocation(x, y);
// 	if (valid) {
// 		validate();
// 	}
// 	else {
// 		invalidate();
// 	}
// 	if (visible) {
// 		show();
// 	}
// 	else {
// 		hide();
// 	}
// }
// 
// private void writeDefaultObject() {
// 	bgColor = Component.this.background;
// 	changeSupport = null;
// 	componentSerializedDataVersion = 0;
// 	cursor = Component.this.cursor;
// 	enabled = isEnabled();
// 	eventMask = Component.this.eventMask;
// 	font = Component.this.font;
// 	foreground = Component.this.foreground;
// 	hasFocus = false;
// 	height = Component.this.height;
// 	isPacked = false;
// 	locale = Component.this.locale;
// 	minSize = getMinimumSize();
// 	name = Component.this.name;
// 	nameExplicitlySet = true;
// 	newEventsOnly = !getClassProperties().useOldEvents;
// 	peerFont = Component.this.font;
// 	popups = null;
// 	prefSize = getPreferredSize();
// 	valid = isValid();
// 	visible = isVisible();
// 	width = Component.this.width;
// 	x = Component.this.x;
// 	y = Component.this.y;
// }
// 
protected Component () {
	cursor = Cursor.defaultCursor;
}

/**
 * @deprecated
 */
public boolean action(Event evt, Object what) {
	return (false);
}

public void add ( PopupMenu menu ) {
	if ( menu.parent != null )
		menu.parent.remove( menu);
		
	if ( (flags & IS_ADD_NOTIFIED) > 0 ) {
		menu.parent = this;
		menu.owner = this;
		menu.addNotify();
	}
		
	if ( popup == null )
		popup = menu;
	else {
		popup.addSeparator();
		popup.addAll( menu);
	}
}

  /**
   * Adds the specified listener to this component. This is harmless if the
   * listener is null, but if the listener has already been registered, it
   * will now be registered twice.
   *
   * @param listener the new listener to add
   * @see ComponentEvent
   * @see #removeComponentListener(ComponentListener)
   * @see #getComponentListeners()
   * @since 1.1
   */
  public synchronized void addComponentListener(ComponentListener listener)
  {
    componentListener = AWTEventMulticaster.add(componentListener, listener);
    if (componentListener != null)
      enableEvents(AWTEvent.COMPONENT_EVENT_MASK);
  }

  /**
   * Removes the specified listener from the component. This is harmless if
   * the listener was not previously registered.
   *
   * @param listener the listener to remove
   * @see ComponentEvent
   * @see #addComponentListener(ComponentListener)
   * @see #getComponentListeners()
   * @since 1.1
   */
  public synchronized void removeComponentListener(ComponentListener listener)
  {
    componentListener = AWTEventMulticaster.remove(componentListener, listener);
  }

  /**
   * Returns an array of all specified listeners registered on this component.
   *
   * @return an array of listeners
   * @see #addComponentListener(ComponentListener)
   * @see #removeComponentListener(ComponentListener)
   * @since 1.4
   */
  public synchronized ComponentListener[] getComponentListeners()
  {
    return (ComponentListener[])
      AWTEventMulticaster.getListeners(componentListener,
                                       ComponentListener.class);
  }

  /**
   * Adds the specified listener to this component. This is harmless if the
   * listener is null, but if the listener has already been registered, it
   * will now be registered twice.
   *
   * @param listener the new listener to add
   * @see FocusEvent
   * @see #removeFocusListener(FocusListener)
   * @see #getFocusListeners()
   * @since 1.1
   */
  public synchronized void addFocusListener(FocusListener listener)
  {
    focusListener = AWTEventMulticaster.add(focusListener, listener);
    if (focusListener != null)
      enableEvents(AWTEvent.FOCUS_EVENT_MASK);
  }

  /**
   * Removes the specified listener from the component. This is harmless if
   * the listener was not previously registered.
   *
   * @param listener the listener to remove
   * @see FocusEvent
   * @see #addFocusListener(FocusListener)
   * @see #getFocusListeners()
   * @since 1.1
   */
  public synchronized void removeFocusListener(FocusListener listener)
  {
    focusListener = AWTEventMulticaster.remove(focusListener, listener);
  }

  /**
   * Returns an array of all specified listeners registered on this component.
   *
   * @return an array of listeners
   * @see #addFocusListener(FocusListener)
   * @see #removeFocusListener(FocusListener)
   * @since 1.4
   */
  public synchronized FocusListener[] getFocusListeners()
  {
    return (FocusListener[])
      AWTEventMulticaster.getListeners(focusListener, FocusListener.class);
  }

  /**
   * Adds the specified listener to this component. This is harmless if the
   * listener is null, but if the listener has already been registered, it
   * will now be registered twice.
   *
   * @param listener the new listener to add
   * @see HierarchyEvent
   * @see #removeHierarchyListener(HierarchyListener)
   * @see #getHierarchyListeners()
   * @since 1.3
   */
  public synchronized void addHierarchyListener(HierarchyListener listener)
  {
    hierarchyListener = AWTEventMulticaster.add(hierarchyListener, listener);
    if (hierarchyListener != null)
      enableEvents(AWTEvent.HIERARCHY_EVENT_MASK);
  }

  /**
   * Removes the specified listener from the component. This is harmless if
   * the listener was not previously registered.
   *
   * @param listener the listener to remove
   * @see HierarchyEvent
   * @see #addHierarchyListener(HierarchyListener)
   * @see #getHierarchyListeners()
   * @since 1.3
   */
  public synchronized void removeHierarchyListener(HierarchyListener listener)
  {
    hierarchyListener = AWTEventMulticaster.remove(hierarchyListener, listener);
  }

  /**
   * Returns an array of all specified listeners registered on this component.
   *
   * @return an array of listeners
   * @see #addHierarchyListener(HierarchyListener)
   * @see #removeHierarchyListener(HierarchyListener)
   * @since 1.4
   */
  public synchronized HierarchyListener[] getHierarchyListeners()
  {
    return (HierarchyListener[])
      AWTEventMulticaster.getListeners(hierarchyListener,
                                       HierarchyListener.class);
  }

  /**
   * Adds the specified listener to this component. This is harmless if the
   * listener is null, but if the listener has already been registered, it
   * will now be registered twice.
   *
   * @param listener the new listener to add
   * @see HierarchyEvent
   * @see #removeHierarchyBoundsListener(HierarchyBoundsListener)
   * @see #getHierarchyBoundsListeners()
   * @since 1.3
   */
  public synchronized void
    addHierarchyBoundsListener(HierarchyBoundsListener listener)
  {
    hierarchyBoundsListener =
      AWTEventMulticaster.add(hierarchyBoundsListener, listener);
    if (hierarchyBoundsListener != null)
      enableEvents(AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK);
  }

  /**
   * Removes the specified listener from the component. This is harmless if
   * the listener was not previously registered.
   *
   * @param listener the listener to remove
   * @see HierarchyEvent
   * @see #addHierarchyBoundsListener(HierarchyBoundsListener)
   * @see #getHierarchyBoundsListeners()
   * @since 1.3
   */
  public synchronized void
    removeHierarchyBoundsListener(HierarchyBoundsListener listener)
  {
    hierarchyBoundsListener =
      AWTEventMulticaster.remove(hierarchyBoundsListener, listener);
  }

  /**
   * Returns an array of all specified listeners registered on this component.
   *
   * @return an array of listeners
   * @see #addHierarchyBoundsListener(HierarchyBoundsListener)
   * @see #removeHierarchyBoundsListener(HierarchyBoundsListener)
   * @since 1.4
   */
  public synchronized HierarchyBoundsListener[] getHierarchyBoundsListeners()
  {
    return (HierarchyBoundsListener[])
      AWTEventMulticaster.getListeners(hierarchyBoundsListener,
                                       HierarchyBoundsListener.class);
  }

  /**
   * Adds the specified listener to this component. This is harmless if the
   * listener is null, but if the listener has already been registered, it
   * will now be registered twice.
   *
   * @param listener the new listener to add
   * @see KeyEvent
   * @see #removeKeyListener(KeyListener)
   * @see #getKeyListeners()
   * @since 1.1
   */
  public synchronized void addKeyListener(KeyListener listener)
  {
    keyListener = AWTEventMulticaster.add(keyListener, listener);
    if (keyListener != null)
      enableEvents(AWTEvent.KEY_EVENT_MASK);
  }

  /**
   * Removes the specified listener from the component. This is harmless if
   * the listener was not previously registered.
   *
   * @param listener the listener to remove
   * @see KeyEvent
   * @see #addKeyListener(KeyListener)
   * @see #getKeyListeners()
   * @since 1.1
   */
  public synchronized void removeKeyListener(KeyListener listener)
  {
    keyListener = AWTEventMulticaster.remove(keyListener, listener);
  }

  /**
   * Returns an array of all specified listeners registered on this component.
   *
   * @return an array of listeners
   * @see #addKeyListener(KeyListener)
   * @see #removeKeyListener(KeyListener)
   * @since 1.4
   */
  public synchronized KeyListener[] getKeyListeners()
  {
    return (KeyListener[])
      AWTEventMulticaster.getListeners(keyListener, KeyListener.class);
  }

  /**
   * Adds the specified listener to this component. This is harmless if the
   * listener is null, but if the listener has already been registered, it
   * will now be registered twice.
   *
   * @param listener the new listener to add
   * @see MouseEvent
   * @see #removeMouseListener(MouseListener)
   * @see #getMouseListeners()
   * @since 1.1
   */
  public synchronized void addMouseListener(MouseListener listener)
  {
    mouseListener = AWTEventMulticaster.add(mouseListener, listener);
    if (mouseListener != null)
      enableEvents(AWTEvent.MOUSE_EVENT_MASK);

    // TODO is this still needed ?
    flags |= IS_MOUSE_AWARE;
  }

  /**
   * Removes the specified listener from the component. This is harmless if
   * the listener was not previously registered.
   *
   * @param listener the listener to remove
   * @see MouseEvent
   * @see #addMouseListener(MouseListener)
   * @see #getMouseListeners()
   * @since 1.1
   */
  public synchronized void removeMouseListener(MouseListener listener)
  {
    mouseListener = AWTEventMulticaster.remove(mouseListener, listener);
    // TODO is this still needed?
    checkMouseAware();
  }

  /**
   * Returns an array of all specified listeners registered on this component.
   *
   * @return an array of listeners
   * @see #addMouseListener(MouseListener)
   * @see #removeMouseListener(MouseListener)
   * @since 1.4
   */
  public synchronized MouseListener[] getMouseListeners()
  {
    return (MouseListener[])
      AWTEventMulticaster.getListeners(mouseListener, MouseListener.class);
  }

  /**
   * Adds the specified listener to this component. This is harmless if the
   * listener is null, but if the listener has already been registered, it
   * will now be registered twice.
   *
   * @param listener the new listener to add
   * @see MouseEvent
   * @see #removeMouseMotionListener(MouseMotionListener)
   * @see #getMouseMotionListeners()
   * @since 1.1
   */
  public synchronized void addMouseMotionListener(MouseMotionListener listener)
  {
    mouseMotionListener = AWTEventMulticaster.add(mouseMotionListener, listener);
    if (mouseMotionListener != null)
      enableEvents(AWTEvent.MOUSE_MOTION_EVENT_MASK);

    // TODO is this still needed ?