210 lines
5.4 KiB
Java
210 lines
5.4 KiB
Java
/* JRootPane.java --
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.swing;
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import java.awt.*;
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import java.awt.event.*;
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import javax.accessibility.AccessibleContext;
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import javax.accessibility.AccessibleRole;
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import javax.accessibility.AccessibleState;
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import javax.accessibility.AccessibleStateSet;
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/**
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* This class is where JComponents are added to.
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* Unlike awt where you could just say frame.add(),
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* with swing you need to say frame.getRootPane()
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* (which delivers an instance of this class)
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* and add your components to that.
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*
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* It is implemented by several 'layers' (pane() should be read as plane())
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* each on top of the others
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* where you can add components to.
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* (getContentPane(), getGlassPane(), getLayeredPane())
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*
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* @author Ronald Veldema (rveldema@cs.vu.nl)
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*/
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public class JRootPane extends JComponent
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{
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// The class used to obtain the accessible role for this object.
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static protected class AccessibleJRootPane
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{
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}
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//A custom layout manager
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static protected class RootLayout extends BorderLayout
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{
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public Dimension preferredLayoutSize ( Container c )
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{
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Dimension p = super.preferredLayoutSize(c);
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System.out.println(" PREF-SIZE from RootLayout = " + p);
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return p;
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}
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}
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/***********************************************************/
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//The glass pane that overlays the menu bar and content pane, so it can intercept mouse movements and such.
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protected Component glassPane;
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//The layered pane that manages the menu bar and content pane.
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protected JLayeredPane layeredPane;
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// The menu bar.
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protected JMenuBar menuBar;
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protected Container contentPane;
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/********************************************************/
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public String getUIClassID()
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{ return "JPanel"; }
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void setJMenuBar(JMenuBar m)
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{ menuBar = m; }
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JMenuBar getJMenuBar()
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{ return menuBar; }
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public Container getContentPane()
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{
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if (contentPane == null)
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{
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setContentPane(createContentPane());
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}
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return contentPane;
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}
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public void setContentPane(Container p)
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{
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contentPane = p;
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getLayeredPane().add(contentPane, 0);
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}
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protected void addImpl(Component comp,
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Object constraints,
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int index)
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{
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super.addImpl(comp, constraints, index);
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//System.out.println("don't do that !");
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}
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public Component getGlassPane()
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{
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if (glassPane == null)
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setGlassPane(createGlassPane());
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return glassPane;
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}
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public void setGlassPane(Component f)
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{
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if (glassPane != null)
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remove(glassPane);
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glassPane = f;
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glassPane.setVisible(false);
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add(glassPane, 0);
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}
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public JLayeredPane getLayeredPane()
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{
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if (layeredPane == null)
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setLayeredPane(createLayeredPane());
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return layeredPane;
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}
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public void setLayeredPane(JLayeredPane f)
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{
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if (layeredPane != null)
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remove(layeredPane);
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layeredPane = f;
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add(f, -1);
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}
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/********************************************************/
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JRootPane()
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{
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setLayout(createRootLayout());
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getGlassPane();
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getLayeredPane();
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getContentPane();
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setDoubleBuffered(true);
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updateUI();
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}
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protected LayoutManager createRootLayout() {
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return new RootLayout();
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}
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JComponent createContentPane()
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{
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JPanel p = new JPanel();
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p.setName(this.getName()+".contentPane");
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p.setLayout(new BorderLayout());
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// p.setVisible(true);
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System.out.println("Created ContentPane: " + p);
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return p;
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}
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Component createGlassPane()
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{
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JPanel p = new JPanel();
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p.setName(this.getName()+".glassPane");
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p.setLayout(new BorderLayout());
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p.setVisible(false);
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System.out.println("created the glasspane: "+p);
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return p;
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}
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JLayeredPane createLayeredPane()
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{
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JLayeredPane l = new JLayeredPane();
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return l;
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}
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}
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