java类java.awt.event.ComponentListener的实例源码

/**
 * This method is called when the component is resized.
 *
 * @param event the <code>ComponentEvent</code> indicating the resize
 */
public void componentResized(ComponentEvent event)
{
  if (applet != null)
    {
      ComponentListener[] l = applet.getComponentListeners();
      for (int i = 0; i < l.length; i++)
        l[i].componentResized(event);
    }
}

/**
 * This method is called when the component is moved.
 *
 * @param event the <code>ComponentEvent</code> indicating the move
 */
public void componentMoved(ComponentEvent event)
{
  if (applet != null)
    {
      ComponentListener[] l = applet.getComponentListeners();
      for (int i = 0; i < l.length; i++)
        l[i].componentMoved(event);
    }
}

/**
 * This method is called when the component is made visible.
 *
 * @param event the <code>ComponentEvent</code> indicating the visibility
 */
public void componentShown(ComponentEvent event)
{
  if (applet != null)
    {
      ComponentListener[] l = applet.getComponentListeners();
      for (int i = 0; i < l.length; i++)
        l[i].componentShown(event);
    }
}

/**
 * This method is called when the component is hidden.
 *
 * @param event the <code>ComponentEvent</code> indicating the visibility
 */
public void componentHidden(ComponentEvent event)
{
  if (applet != null)
    {
      ComponentListener[] l = applet.getComponentListeners();
      for (int i = 0; i < l.length; i++)
        l[i].componentHidden(event);
    }
}

/**
 * This method is called when the component is resized.
 *
 * @param event the <code>ComponentEvent</code> indicating the resize
 */
public void componentResized(ComponentEvent event)
{
  if (applet != null)
    {
      ComponentListener[] l = applet.getComponentListeners();
      for (int i = 0; i < l.length; i++)
        l[i].componentResized(event);
    }
}

/**
 * This method is called when the component is moved.
 *
 * @param event the <code>ComponentEvent</code> indicating the move
 */
public void componentMoved(ComponentEvent event)
{
  if (applet != null)
    {
      ComponentListener[] l = applet.getComponentListeners();
      for (int i = 0; i < l.length; i++)
        l[i].componentMoved(event);
    }
}

/**
 * This method is called when the component is made visible.
 *
 * @param event the <code>ComponentEvent</code> indicating the visibility
 */
public void componentShown(ComponentEvent event)
{
  if (applet != null)
    {
      ComponentListener[] l = applet.getComponentListeners();
      for (int i = 0; i < l.length; i++)
        l[i].componentShown(event);
    }
}

/**
 * This method is called when the component is hidden.
 *
 * @param event the <code>ComponentEvent</code> indicating the visibility
 */
public void componentHidden(ComponentEvent event)
{
  if (applet != null)
    {
      ComponentListener[] l = applet.getComponentListeners();
      for (int i = 0; i < l.length; i++)
        l[i].componentHidden(event);
    }
}

private static FrameState findFrameState(@NotNull Component component) {
  for (ComponentListener listener : component.getComponentListeners()) {
    if (listener instanceof FrameState) {
      return (FrameState)listener;
    }
  }
  return null;
}

/**
* Returns true if the {@link Popup} this class handles is visible. Since
* there is no available method in the {@link Popup} class to check whether
* it is visible, it checks if listeners are attached to the owning frame or
* glass pane instead.
*/
  public boolean isPopupVisible() {
    ComponentListener[] componentListeners = owningFrame.getComponentListeners();
    if (Arrays.asList(componentListeners).contains(resizeListener)) {
        return true;
    }

    MouseListener[] mouseListeners = glassPane.getMouseListeners();
    if (Arrays.asList(mouseListeners).contains(clickListener)) {
        return true;
    }

    return false;

  }