Java HierarchyBoundsListener类代码示例

import java.awt.event.HierarchyBoundsListener; //导入依赖的package包/类
/**
 * 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)
{
  if (listener != null)
    {
      hierarchyBoundsListener =
        AWTEventMulticaster.add(hierarchyBoundsListener, listener);
      newEventsOnly = true;

      // Need to lock the tree, otherwise we might end up inconsistent.
      synchronized (getTreeLock())
      {
        numHierarchyBoundsListeners++;
        if (parent != null)
          parent.updateHierarchyListenerCount
                                   (AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK, 1);
      }
    }
}
 

import java.awt.event.HierarchyBoundsListener; //导入依赖的package包/类
/**
 * 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);

  // Need to lock the tree, otherwise we might end up inconsistent.
  synchronized (getTreeLock())
    {
      numHierarchyBoundsListeners--;
      if (parent != null)
        parent.updateHierarchyListenerCount
                                       (AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK,
                                        -1);
    }
}
 

import java.awt.event.HierarchyBoundsListener; //导入依赖的package包/类
@SuppressWarnings("unchecked")
public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
    if (ComponentListener.class.isAssignableFrom(listenerType)) {
        return (T[]) getComponentListeners();
    } else if (FocusListener.class.isAssignableFrom(listenerType)) {
        return (T[]) getFocusListeners();
    } else if (HierarchyBoundsListener.class.isAssignableFrom(listenerType)) {
        return (T[]) getHierarchyBoundsListeners();
    } else if (HierarchyListener.class.isAssignableFrom(listenerType)) {
        return (T[]) getHierarchyListeners();
    } else if (InputMethodListener.class.isAssignableFrom(listenerType)) {
        return (T[]) getInputMethodListeners();
    } else if (KeyListener.class.isAssignableFrom(listenerType)) {
        return (T[]) getKeyListeners();
    } else if (MouseWheelListener.class.isAssignableFrom(listenerType)) {
        return (T[]) getMouseWheelListeners();
    } else if (MouseMotionListener.class.isAssignableFrom(listenerType)) {
        return (T[]) getMouseMotionListeners();
    } else if (MouseListener.class.isAssignableFrom(listenerType)) {
        return (T[]) getMouseListeners();
    } else if (PropertyChangeListener.class.isAssignableFrom(listenerType)) {
        return (T[]) getPropertyChangeListeners();
    }
    return (T[]) Array.newInstance(listenerType, 0);
}
 

import java.awt.event.HierarchyBoundsListener; //导入依赖的package包/类
/**
 * Deserializes this component. This regenerates all serializable listeners
 * which were registered originally.
 *
 * @param s the stream to read from
 * @throws ClassNotFoundException if deserialization fails
 * @throws IOException if the stream fails
 */
private void readObject(ObjectInputStream s)
  throws ClassNotFoundException, IOException
{
  s.defaultReadObject();
  String key = (String) s.readObject();
  while (key != null)
    {
      Object listener = s.readObject();
      if ("componentL".equals(key))
        addComponentListener((ComponentListener) listener);
      else if ("focusL".equals(key))
        addFocusListener((FocusListener) listener);
      else if ("keyL".equals(key))
        addKeyListener((KeyListener) listener);
      else if ("mouseL".equals(key))
        addMouseListener((MouseListener) listener);
      else if ("mouseMotionL".equals(key))
        addMouseMotionListener((MouseMotionListener) listener);
      else if ("inputMethodL".equals(key))
        addInputMethodListener((InputMethodListener) listener);
      else if ("hierarchyL".equals(key))
        addHierarchyListener((HierarchyListener) listener);
      else if ("hierarchyBoundsL".equals(key))
        addHierarchyBoundsListener((HierarchyBoundsListener) listener);
      else if ("mouseWheelL".equals(key))
        addMouseWheelListener((MouseWheelListener) listener);
      key = (String) s.readObject();
    }
}
 

import java.awt.event.HierarchyBoundsListener; //导入依赖的package包/类
/**
 * Called when an ancestor component of the source is moved.
 *
 * @param e the event describing the ancestor's motion
 */
public void ancestorMoved(HierarchyEvent e)
{
  if (applet != null)
    {
      HierarchyBoundsListener[] l = applet.getHierarchyBoundsListeners();
      for (int i = 0; i < l.length; i++)
        l[i].ancestorMoved(e);
    }
}
 

import java.awt.event.HierarchyBoundsListener; //导入依赖的package包/类
/**
 * Called when an ancestor component is resized.
 *
 * @param e the event describing the ancestor's resizing
 */
public void ancestorResized(HierarchyEvent e)
{
  if (applet != null)
    {
      HierarchyBoundsListener[] l = applet.getHierarchyBoundsListeners();
      for (int i = 0; i < l.length; i++)
        l[i].ancestorResized(e);
    }
}
 

import java.awt.event.HierarchyBoundsListener; //导入依赖的package包/类
public void ancestorMoved(HierarchyEvent e) {
    if ((a != null) && (a instanceof HierarchyBoundsListener)) {
        ((HierarchyBoundsListener) a).ancestorMoved(e);
    }
    if ((b != null) && (b instanceof HierarchyBoundsListener)) {
        ((HierarchyBoundsListener) b).ancestorMoved(e);
    }
}
 

import java.awt.event.HierarchyBoundsListener; //导入依赖的package包/类
public void ancestorResized(HierarchyEvent e) {
    if ((a != null) && (a instanceof HierarchyBoundsListener)) {
        ((HierarchyBoundsListener) a).ancestorResized(e);
    }
    if ((b != null) && (b instanceof HierarchyBoundsListener)) {
        ((HierarchyBoundsListener) b).ancestorResized(e);
    }
}
 

import java.awt.event.HierarchyBoundsListener; //导入依赖的package包/类
protected void processHierarchyBoundsEvent(HierarchyEvent e) {
    for (HierarchyBoundsListener listener : hierarchyBoundsListeners.getUserListeners()) {
        switch (e.getID()) {
            case HierarchyEvent.ANCESTOR_MOVED:
                listener.ancestorMoved(e);
                break;
            case HierarchyEvent.ANCESTOR_RESIZED:
                listener.ancestorResized(e);
                break;
        }
    }
}