jrootpane.java

gcc的组建

  protected Component glassPane;

  /** DOCUMENT ME! */
  protected JLayeredPane layeredPane;

  /** DOCUMENT ME! */
  protected JMenuBar menuBar;

  /** DOCUMENT ME! */
  protected Container contentPane;

  protected JButton defaultButton;

  /**
   * This field is unused since JDK1.3. To override the default action you
   * should modify the JRootPane's ActionMap.
   *
   * @deprecated since JDK1.3
   *
   * @specnote the specs indicate that the type of this field is
   *           a package private inner class
   *           javax.swing.JRootPane.DefaultAction. I assume that the closest
   *           public superclass is javax.swing.Action.
   */
  protected Action defaultPressAction;

  /**
   * This field is unused since JDK1.3. To override the default action you
   * should modify the JRootPane's ActionMap.
   *
   * @deprecated since JDK1.3
   *
   * @specnote the specs indicate that the type of this field is
   *           a package private inner class
   *           javax.swing.JRootPane.DefaultAction. I assume that the closest
   *           public superclass is javax.swing.Action.
   */
  protected Action defaultReleaseAction;

  /**
   * @since 1.4
   */
  private int windowDecorationStyle = NONE;
  
  /**
   * DOCUMENT ME!
   *
   * @param m DOCUMENT ME!
   */
  public void setJMenuBar(JMenuBar m)
  {
    JLayeredPane jlPane = getLayeredPane();
    if (menuBar != null)
      jlPane.remove(menuBar);
    menuBar = m;
    if (menuBar != null)
      jlPane.add(menuBar, JLayeredPane.FRAME_CONTENT_LAYER);
  }

  /**
   * @deprecated Replaced by <code>setJMenuBar()</code>
   */
  public void setMenuBar(JMenuBar m)
  {
    setJMenuBar(m);
  }

  /**
   * DOCUMENT ME!
   *
   * @return DOCUMENT ME!
   */
  public JMenuBar getJMenuBar()
  {
    return menuBar;
  }

  /**
   * @deprecated Replaced by <code>getJMenuBar()</code>
   */
  public JMenuBar getMenuBar()
  {
    return getJMenuBar();
  }

  /**
   * DOCUMENT ME!
   *
   * @return DOCUMENT ME!
   */
  public boolean isValidateRoot()
  {
    return true;
  }

  /**
   * DOCUMENT ME!
   *
   * @return DOCUMENT ME!
   */
  public Container getContentPane()
  {
    if (contentPane == null)
      setContentPane(createContentPane());
    return contentPane;
  }

  /**
   * Sets the JRootPane's content pane.  The content pane should typically be
   * opaque for painting to work properly.  This method also 
   * removes the old content pane from the layered pane.
   *
   * @param p the Container that will be the content pane
   * @throws IllegalComponentStateException if p is null
   */
  public void setContentPane(Container p)
  {
    if (p == null)
      throw new IllegalComponentStateException ("cannot " +
            "have a null content pane");
    else
      {
        if (contentPane != null && contentPane.getParent() == layeredPane)
          layeredPane.remove(contentPane);
        contentPane = p;
        getLayeredPane().add(contentPane, JLayeredPane.FRAME_CONTENT_LAYER);
      }
  }

  /**
   * DOCUMENT ME!
   *
   * @param comp DOCUMENT ME!
   * @param constraints DOCUMENT ME!
   * @param index DOCUMENT ME!
   */
  protected void addImpl(Component comp, Object constraints, int index)
  {
    super.addImpl(comp, constraints, index);
  }

  /**
   * DOCUMENT ME!
   *
   * @return DOCUMENT ME!
   */
  public Component getGlassPane()
  {
    if (glassPane == null)
      setGlassPane(createGlassPane());
    return glassPane;
  }

  /**
   * DOCUMENT ME!
   *
   * @param f DOCUMENT ME!
   */
  public void setGlassPane(Component f)
  {
    if (glassPane != null)
      remove(glassPane);

    glassPane = f;

    glassPane.setVisible(false);
    add(glassPane, 0);
  }

  /**
   * DOCUMENT ME!
   *
   * @return DOCUMENT ME!
   */
  public JLayeredPane getLayeredPane()
  {
    if (layeredPane == null)
      setLayeredPane(createLayeredPane());
    return layeredPane;
  }

  /**
   * DOCUMENT ME!
   *
   * @param f DOCUMENT ME!
   */
  public void setLayeredPane(JLayeredPane f)
  {
    if (layeredPane != null)
      remove(layeredPane);

    layeredPane = f;
    add(f, -1);
  }

  /**
   * Creates a new <code>JRootPane</code> object.
   */
  public JRootPane()
  {
    setLayout(createRootLayout());
    getGlassPane();
    getLayeredPane();
    getContentPane();
    updateUI();
  }

  /**
   * DOCUMENT ME!
   *
   * @return DOCUMENT ME!
   */
  protected LayoutManager createRootLayout()
  {
    return new RootLayout();
  }

  /**
   * DOCUMENT ME!
   *
   * @return DOCUMENT ME!
   */
  protected Container createContentPane()
  {
    JPanel p = new JPanel();
    p.setName(this.getName() + ".contentPane");
    p.setLayout(new BorderLayout());
    return p;
  }

  /**
   * DOCUMENT ME!
   *
   * @return DOCUMENT ME!
   */
  protected Component createGlassPane()
  {
    JPanel p = new JPanel();
    p.setName(this.getName() + ".glassPane");
    p.setVisible(false);
    p.setOpaque(false);
    return p;
  }

  /**
   * DOCUMENT ME!
   *
   * @return DOCUMENT ME!
   */
  protected JLayeredPane createLayeredPane()
  {
    JLayeredPane l = new JLayeredPane();
    l.setLayout(null);
    return l;
  }

  /**
   * DOCUMENT ME!
   *
   * @return DOCUMENT ME!
   */
  public RootPaneUI getUI()
  {
    return (RootPaneUI) ui;
  }

  /**
   * DOCUMENT ME!
   *
   * @param ui DOCUMENT ME!
   */
  public void setUI(RootPaneUI ui)
  {
    super.setUI(ui);
  }

  /**
   * DOCUMENT ME!
   */
  public void updateUI()
  {
    setUI((RootPaneUI) UIManager.getUI(this));
  }

  /**
   * DOCUMENT ME!
   *
   * @return DOCUMENT ME!
   */
  public String getUIClassID()
  {
    return "RootPaneUI";
  }

  public JButton getDefaultButton()
  {
    return defaultButton;
  }
  
  public void setDefaultButton(JButton newButton)
  {
    if (defaultButton == newButton)
      return;
    
    JButton oldButton = defaultButton;
    defaultButton = newButton;
    firePropertyChange("defaultButton", oldButton, newButton);
  }

  /**
   * @since 1.4
   */
  public int getWindowDecorationStyle()
  {
    return windowDecorationStyle;
  }

  /**
   * @since 1.4
   */
  public void setWindowDecorationStyle(int style)
  {
    if (style != NONE
        && style != FRAME
        && style != INFORMATION_DIALOG
        && style != ERROR_DIALOG
        && style != COLOR_CHOOSER_DIALOG
        && style != FILE_CHOOSER_DIALOG
        && style != QUESTION_DIALOG
        && style != WARNING_DIALOG
        && style != PLAIN_DIALOG)
      throw new IllegalArgumentException("invalid style");
    
    int oldStyle = windowDecorationStyle;
    windowDecorationStyle = style;
    firePropertyChange("windowDecorationStyle", oldStyle, style);
  }
}