291 lines
8.0 KiB
Java
291 lines
8.0 KiB
Java
/* JWindow.java --
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Copyright (C) 2002, 2003, 2004, 2005 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., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 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.AWTEvent;
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import java.awt.BorderLayout;
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import java.awt.Component;
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import java.awt.Container;
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import java.awt.Dimension;
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import java.awt.Frame;
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import java.awt.Graphics;
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import java.awt.GraphicsConfiguration;
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import java.awt.LayoutManager;
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import java.awt.Window;
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import java.awt.event.KeyEvent;
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import javax.accessibility.Accessible;
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import javax.accessibility.AccessibleContext;
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/**
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* Unlike JComponent derivatives, JWindow inherits from
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* java.awt.Window. But also lets a look-and-feel component to its work.
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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 JWindow extends Window implements Accessible, RootPaneContainer
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{
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/**
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* Provides accessibility support for <code>JWindow</code>.
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*/
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protected class AccessibleJWindow extends Window.AccessibleAWTWindow
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{
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/**
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* Creates a new instance of <code>AccessibleJWindow</code>.
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*/
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protected AccessibleJWindow()
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{
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super();
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// Nothing to do here.
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}
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}
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private static final long serialVersionUID = 5420698392125238833L;
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protected JRootPane rootPane;
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/**
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* @specnote rootPaneCheckingEnabled is false to comply with J2SE 5.0
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*/
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protected boolean rootPaneCheckingEnabled = false;
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protected AccessibleContext accessibleContext;
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/**
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* Creates a new <code>JWindow</code> that has a shared invisible owner frame
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* as its parent.
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*/
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public JWindow()
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{
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super(SwingUtilities.getOwnerFrame(null));
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windowInit();
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}
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/**
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* Creates a new <code>JWindow</code> that uses the specified graphics
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* environment. This can be used to open a window on a different screen for
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* example.
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*
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* @param gc the graphics environment to use
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*/
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public JWindow(GraphicsConfiguration gc)
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{
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super(SwingUtilities.getOwnerFrame(null), gc);
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windowInit();
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}
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/**
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* Creates a new <code>JWindow</code> that has the specified
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* <code>owner</code> frame. If <code>owner</code> is <code>null</code>, then
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* an invisible shared owner frame is installed as owner frame.
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*
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* @param owner the owner frame of this window; if <code>null</code> a shared
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* invisible owner frame is used
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*/
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public JWindow(Frame owner)
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{
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super(SwingUtilities.getOwnerFrame(owner));
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windowInit();
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}
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/**
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* Creates a new <code>JWindow</code> that has the specified
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* <code>owner</code> window. If <code>owner</code> is <code>null</code>,
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* then an invisible shared owner frame is installed as owner frame.
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*
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* @param owner the owner window of this window; if <code>null</code> a
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* shared invisible owner frame is used
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*/
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public JWindow(Window owner)
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{
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super(SwingUtilities.getOwnerFrame(owner));
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windowInit();
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}
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/**
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* Creates a new <code>JWindow</code> for the given graphics configuration
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* and that has the specified <code>owner</code> window. If
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* <code>owner</code> is <code>null</code>, then an invisible shared owner
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* frame is installed as owner frame.
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*
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* The <code>gc</code> parameter can be used to open the window on a
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* different screen for example.
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*
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* @param owner the owner window of this window; if <code>null</code> a
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* shared invisible owner frame is used
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* @param gc the graphics configuration to use
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*/
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public JWindow(Window owner, GraphicsConfiguration gc)
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{
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super(SwingUtilities.getOwnerFrame(owner), gc);
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windowInit();
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}
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protected void windowInit()
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{
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// We need to explicitly enable events here so that our processKeyEvent()
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// and processWindowEvent() gets called.
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enableEvents(AWTEvent.KEY_EVENT_MASK);
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super.setLayout(new BorderLayout(1, 1));
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getRootPane(); // will do set/create
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// Now we're done init stage, adds and layouts go to content pane.
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setRootPaneCheckingEnabled(true);
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}
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public Dimension getPreferredSize()
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{
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return super.getPreferredSize();
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}
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public void setLayout(LayoutManager manager)
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{
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// Check if we're in initialization stage. If so, call super.setLayout
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// otherwise, valid calls go to the content pane.
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if (isRootPaneCheckingEnabled())
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getContentPane().setLayout(manager);
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else
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super.setLayout(manager);
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}
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public void setLayeredPane(JLayeredPane layeredPane)
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{
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getRootPane().setLayeredPane(layeredPane);
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}
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public JLayeredPane getLayeredPane()
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{
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return getRootPane().getLayeredPane();
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}
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public JRootPane getRootPane()
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{
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if (rootPane == null)
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setRootPane(createRootPane());
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return rootPane;
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}
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protected void setRootPane(JRootPane root)
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{
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if (rootPane != null)
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remove(rootPane);
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rootPane = root;
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add(rootPane, BorderLayout.CENTER);
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}
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protected JRootPane createRootPane()
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{
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return new JRootPane();
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}
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public Container getContentPane()
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{
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return getRootPane().getContentPane();
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}
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public void setContentPane(Container contentPane)
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{
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getRootPane().setContentPane(contentPane);
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}
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public Component getGlassPane()
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{
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return getRootPane().getGlassPane();
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}
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public void setGlassPane(Component glassPane)
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{
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getRootPane().setGlassPane(glassPane);
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}
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protected void addImpl(Component comp, Object constraints, int index)
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{
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// If we're adding in the initialization stage use super.add.
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// otherwise pass the add onto the content pane.
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if (isRootPaneCheckingEnabled())
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getContentPane().add(comp, constraints, index);
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else
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super.addImpl(comp, constraints, index);
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}
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public void remove(Component comp)
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{
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// If we're removing the root pane, use super.remove. Otherwise
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// pass it on to the content pane instead.
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if (comp == rootPane)
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super.remove(rootPane);
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else
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getContentPane().remove(comp);
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}
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protected boolean isRootPaneCheckingEnabled()
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{
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return rootPaneCheckingEnabled;
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}
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protected void setRootPaneCheckingEnabled(boolean enabled)
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{
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rootPaneCheckingEnabled = enabled;
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}
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public void update(Graphics g)
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{
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paint(g);
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}
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protected void processKeyEvent(KeyEvent e)
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{
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super.processKeyEvent(e);
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}
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public AccessibleContext getAccessibleContext()
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{
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if (accessibleContext == null)
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accessibleContext = new AccessibleJWindow();
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return accessibleContext;
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}
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protected String paramString()
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{
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return "JWindow";
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}
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}
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