cc8641d33a
Update copyright for files that have been modified starting July 2008 to Dec 2008 Reviewed-by: katleman, ohair, tbell
671 lines
23 KiB
Java
671 lines
23 KiB
Java
/*
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* Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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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 java.beans.PropertyChangeListener;
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import java.util.Locale;
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import java.util.Vector;
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import java.io.Serializable;
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import javax.accessibility.*;
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/**
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* A <code>JWindow</code> is a container that can be displayed anywhere on the
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* user's desktop. It does not have the title bar, window-management buttons,
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* or other trimmings associated with a <code>JFrame</code>, but it is still a
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* "first-class citizen" of the user's desktop, and can exist anywhere
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* on it.
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* <p>
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* The <code>JWindow</code> component contains a <code>JRootPane</code>
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* as its only child. The <code>contentPane</code> should be the parent
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* of any children of the <code>JWindow</code>.
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* As a conveniance <code>add</code> and its variants, <code>remove</code> and
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* <code>setLayout</code> have been overridden to forward to the
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* <code>contentPane</code> as necessary. This means you can write:
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* <pre>
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* window.add(child);
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* </pre>
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* And the child will be added to the contentPane.
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* The <code>contentPane</code> will always be non-<code>null</code>.
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* Attempting to set it to <code>null</code> will cause the <code>JWindow</code>
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* to throw an exception. The default <code>contentPane</code> will have a
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* <code>BorderLayout</code> manager set on it.
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* Refer to {@link javax.swing.RootPaneContainer}
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* for details on adding, removing and setting the <code>LayoutManager</code>
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* of a <code>JWindow</code>.
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* <p>
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* Please see the {@link JRootPane} documentation for a complete description of
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* the <code>contentPane</code>, <code>glassPane</code>, and
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* <code>layeredPane</code> components.
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* <p>
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* In a multi-screen environment, you can create a <code>JWindow</code>
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* on a different screen device. See {@link java.awt.Window} for more
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* information.
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* <p>
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* <strong>Warning:</strong> Swing is not thread safe. For more
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* information see <a
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* href="package-summary.html#threading">Swing's Threading
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* Policy</a>.
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* <p>
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* <strong>Warning:</strong>
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* Serialized objects of this class will not be compatible with
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* future Swing releases. The current serialization support is
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* appropriate for short term storage or RMI between applications running
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* the same version of Swing. As of 1.4, support for long term storage
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* of all JavaBeans<sup><font size="-2">TM</font></sup>
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* has been added to the <code>java.beans</code> package.
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* Please see {@link java.beans.XMLEncoder}.
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*
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* @see JRootPane
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*
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* @beaninfo
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* attribute: isContainer true
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* attribute: containerDelegate getContentPane
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* description: A toplevel window which has no system border or controls.
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*
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* @author David Kloba
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*/
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public class JWindow extends Window implements Accessible,
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RootPaneContainer,
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TransferHandler.HasGetTransferHandler
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{
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/**
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* The <code>JRootPane</code> instance that manages the
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* <code>contentPane</code>
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* and optional <code>menuBar</code> for this frame, as well as the
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* <code>glassPane</code>.
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*
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* @see #getRootPane
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* @see #setRootPane
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*/
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protected JRootPane rootPane;
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/**
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* If true then calls to <code>add</code> and <code>setLayout</code>
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* will be forwarded to the <code>contentPane</code>. This is initially
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* false, but is set to true when the <code>JWindow</code> is constructed.
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*
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* @see #isRootPaneCheckingEnabled
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* @see #setRootPaneCheckingEnabled
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* @see javax.swing.RootPaneContainer
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*/
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protected boolean rootPaneCheckingEnabled = false;
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/**
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* The <code>TransferHandler</code> for this window.
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*/
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private TransferHandler transferHandler;
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/**
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* Creates a window with no specified owner. This window will not be
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* focusable.
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* <p>
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* This constructor sets the component's locale property to the value
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* returned by <code>JComponent.getDefaultLocale</code>.
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*
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* @throws HeadlessException if
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* <code>GraphicsEnvironment.isHeadless()</code> returns true.
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* @see java.awt.GraphicsEnvironment#isHeadless
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* @see #isFocusableWindow
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* @see JComponent#getDefaultLocale
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*/
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public JWindow() {
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this((Frame)null);
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}
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/**
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* Creates a window with the specified <code>GraphicsConfiguration</code>
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* of a screen device. This window will not be focusable.
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* <p>
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* This constructor sets the component's locale property to the value
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* returned by <code>JComponent.getDefaultLocale</code>.
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*
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* @param gc the <code>GraphicsConfiguration</code> that is used
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* to construct the new window with; if gc is <code>null</code>,
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* the system default <code>GraphicsConfiguration</code>
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* is assumed
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* @throws HeadlessException If
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* <code>GraphicsEnvironment.isHeadless()</code> returns true.
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* @throws IllegalArgumentException if <code>gc</code> is not from
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* a screen device.
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*
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* @see java.awt.GraphicsEnvironment#isHeadless
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* @see #isFocusableWindow
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* @see JComponent#getDefaultLocale
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*
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* @since 1.3
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*/
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public JWindow(GraphicsConfiguration gc) {
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this(null, gc);
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super.setFocusableWindowState(false);
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}
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/**
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* Creates a window with the specified owner frame.
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* If <code>owner</code> is <code>null</code>, the shared owner
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* will be used and this window will not be focusable. Also,
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* this window will not be focusable unless its owner is showing
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* on the screen.
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* <p>
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* This constructor sets the component's locale property to the value
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* returned by <code>JComponent.getDefaultLocale</code>.
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*
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* @param owner the frame from which the window is displayed
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* @throws HeadlessException if GraphicsEnvironment.isHeadless()
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* returns true.
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* @see java.awt.GraphicsEnvironment#isHeadless
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* @see #isFocusableWindow
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* @see JComponent#getDefaultLocale
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*/
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public JWindow(Frame owner) {
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super(owner == null? SwingUtilities.getSharedOwnerFrame() : owner);
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if (owner == null) {
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WindowListener ownerShutdownListener =
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SwingUtilities.getSharedOwnerFrameShutdownListener();
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addWindowListener(ownerShutdownListener);
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}
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windowInit();
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}
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/**
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* Creates a window with the specified owner window. This window
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* will not be focusable unless its owner is showing on the screen.
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* If <code>owner</code> is <code>null</code>, the shared owner
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* will be used and this window will not be focusable.
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* <p>
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* This constructor sets the component's locale property to the value
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* returned by <code>JComponent.getDefaultLocale</code>.
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*
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* @param owner the window from which the window is displayed
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* @throws HeadlessException if
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* <code>GraphicsEnvironment.isHeadless()</code> returns true.
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* @see java.awt.GraphicsEnvironment#isHeadless
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* @see #isFocusableWindow
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* @see JComponent#getDefaultLocale
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*/
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public JWindow(Window owner) {
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super(owner == null ? (Window)SwingUtilities.getSharedOwnerFrame() :
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owner);
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if (owner == null) {
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WindowListener ownerShutdownListener =
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SwingUtilities.getSharedOwnerFrameShutdownListener();
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addWindowListener(ownerShutdownListener);
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}
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windowInit();
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}
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/**
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* Creates a window with the specified owner window and
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* <code>GraphicsConfiguration</code> of a screen device. If
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* <code>owner</code> is <code>null</code>, the shared owner will be used
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* and this window will not be focusable.
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* <p>
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* This constructor sets the component's locale property to the value
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* returned by <code>JComponent.getDefaultLocale</code>.
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*
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* @param owner the window from which the window is displayed
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* @param gc the <code>GraphicsConfiguration</code> that is used
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* to construct the new window with; if gc is <code>null</code>,
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* the system default <code>GraphicsConfiguration</code>
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* is assumed, unless <code>owner</code> is also null, in which
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* case the <code>GraphicsConfiguration</code> from the
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* shared owner frame will be used.
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* @throws HeadlessException if
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* <code>GraphicsEnvironment.isHeadless()</code> returns true.
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* @throws IllegalArgumentException if <code>gc</code> is not from
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* a screen device.
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*
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* @see java.awt.GraphicsEnvironment#isHeadless
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* @see #isFocusableWindow
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* @see JComponent#getDefaultLocale
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*
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* @since 1.3
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*/
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public JWindow(Window owner, GraphicsConfiguration gc) {
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super(owner == null ? (Window)SwingUtilities.getSharedOwnerFrame() :
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owner, gc);
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if (owner == null) {
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WindowListener ownerShutdownListener =
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SwingUtilities.getSharedOwnerFrameShutdownListener();
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addWindowListener(ownerShutdownListener);
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}
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windowInit();
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}
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/**
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* Called by the constructors to init the <code>JWindow</code> properly.
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*/
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protected void windowInit() {
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setLocale( JComponent.getDefaultLocale() );
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setRootPane(createRootPane());
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setRootPaneCheckingEnabled(true);
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sun.awt.SunToolkit.checkAndSetPolicy(this, true);
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}
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/**
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* Called by the constructor methods to create the default
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* <code>rootPane</code>.
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*/
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protected JRootPane createRootPane() {
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JRootPane rp = new JRootPane();
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// NOTE: this uses setOpaque vs LookAndFeel.installProperty as there
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// is NO reason for the RootPane not to be opaque. For painting to
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// work the contentPane must be opaque, therefor the RootPane can
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// also be opaque.
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rp.setOpaque(true);
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return rp;
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}
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/**
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* Returns whether calls to <code>add</code> and
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* <code>setLayout</code> are forwarded to the <code>contentPane</code>.
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*
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* @return true if <code>add</code> and <code>setLayout</code>
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* are fowarded; false otherwise
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*
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* @see #addImpl
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* @see #setLayout
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* @see #setRootPaneCheckingEnabled
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* @see javax.swing.RootPaneContainer
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*/
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protected boolean isRootPaneCheckingEnabled() {
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return rootPaneCheckingEnabled;
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}
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/**
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* Sets the {@code transferHandler} property, which is a mechanism to
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* support transfer of data into this component. Use {@code null}
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* if the component does not support data transfer operations.
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* <p>
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* If the system property {@code suppressSwingDropSupport} is {@code false}
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* (the default) and the current drop target on this component is either
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* {@code null} or not a user-set drop target, this method will change the
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* drop target as follows: If {@code newHandler} is {@code null} it will
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* clear the drop target. If not {@code null} it will install a new
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* {@code DropTarget}.
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* <p>
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* Note: When used with {@code JWindow}, {@code TransferHandler} only
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* provides data import capability, as the data export related methods
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* are currently typed to {@code JComponent}.
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* <p>
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* Please see
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* <a href="http://java.sun.com/docs/books/tutorial/uiswing/misc/dnd.html">
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* How to Use Drag and Drop and Data Transfer</a>, a section in
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* <em>The Java Tutorial</em>, for more information.
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*
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* @param newHandler the new {@code TransferHandler}
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*
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* @see TransferHandler
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* @see #getTransferHandler
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* @see java.awt.Component#setDropTarget
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* @since 1.6
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*
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* @beaninfo
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* bound: true
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* hidden: true
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* description: Mechanism for transfer of data into the component
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*/
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public void setTransferHandler(TransferHandler newHandler) {
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TransferHandler oldHandler = transferHandler;
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transferHandler = newHandler;
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SwingUtilities.installSwingDropTargetAsNecessary(this, transferHandler);
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firePropertyChange("transferHandler", oldHandler, newHandler);
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}
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/**
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* Gets the <code>transferHandler</code> property.
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*
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* @return the value of the <code>transferHandler</code> property
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*
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* @see TransferHandler
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* @see #setTransferHandler
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* @since 1.6
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*/
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public TransferHandler getTransferHandler() {
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return transferHandler;
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}
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/**
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* Calls <code>paint(g)</code>. This method was overridden to
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* prevent an unnecessary call to clear the background.
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*
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* @param g the <code>Graphics</code> context in which to paint
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*/
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public void update(Graphics g) {
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paint(g);
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}
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/**
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* Sets whether calls to <code>add</code> and
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* <code>setLayout</code> are forwarded to the <code>contentPane</code>.
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*
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* @param enabled true if <code>add</code> and <code>setLayout</code>
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* are forwarded, false if they should operate directly on the
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* <code>JWindow</code>.
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*
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* @see #addImpl
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* @see #setLayout
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* @see #isRootPaneCheckingEnabled
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* @see javax.swing.RootPaneContainer
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* @beaninfo
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* hidden: true
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* description: Whether the add and setLayout methods are forwarded
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*/
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protected void setRootPaneCheckingEnabled(boolean enabled) {
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rootPaneCheckingEnabled = enabled;
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}
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/**
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* Adds the specified child <code>Component</code>.
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* This method is overridden to conditionally forward calls to the
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* <code>contentPane</code>.
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* By default, children are added to the <code>contentPane</code> instead
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* of the frame, refer to {@link javax.swing.RootPaneContainer} for
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* details.
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*
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* @param comp the component to be enhanced
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* @param constraints the constraints to be respected
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* @param index the index
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* @exception IllegalArgumentException if <code>index</code> is invalid
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* @exception IllegalArgumentException if adding the container's parent
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* to itself
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* @exception IllegalArgumentException if adding a window to a container
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*
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* @see #setRootPaneCheckingEnabled
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* @see javax.swing.RootPaneContainer
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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(isRootPaneCheckingEnabled()) {
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getContentPane().add(comp, constraints, index);
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}
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else {
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super.addImpl(comp, constraints, index);
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}
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}
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/**
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* Removes the specified component from the container. If
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* <code>comp</code> is not the <code>rootPane</code>, this will forward
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* the call to the <code>contentPane</code>. This will do nothing if
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* <code>comp</code> is not a child of the <code>JWindow</code> or
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* <code>contentPane</code>.
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*
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* @param comp the component to be removed
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* @throws NullPointerException if <code>comp</code> is null
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* @see #add
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* @see javax.swing.RootPaneContainer
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*/
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public void remove(Component comp) {
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if (comp == rootPane) {
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super.remove(comp);
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} else {
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getContentPane().remove(comp);
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}
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}
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/**
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* Sets the <code>LayoutManager</code>.
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* Overridden to conditionally forward the call to the
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* <code>contentPane</code>.
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* Refer to {@link javax.swing.RootPaneContainer} for
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* more information.
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*
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* @param manager the <code>LayoutManager</code>
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* @see #setRootPaneCheckingEnabled
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* @see javax.swing.RootPaneContainer
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*/
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public void setLayout(LayoutManager manager) {
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if(isRootPaneCheckingEnabled()) {
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getContentPane().setLayout(manager);
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}
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else {
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super.setLayout(manager);
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}
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}
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/**
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* Returns the <code>rootPane</code> object for this window.
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* @return the <code>rootPane</code> property for this window
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*
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* @see #setRootPane
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* @see RootPaneContainer#getRootPane
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*/
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public JRootPane getRootPane() {
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return rootPane;
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}
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/**
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* Sets the new <code>rootPane</code> object for this window.
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* This method is called by the constructor.
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*
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* @param root the new <code>rootPane</code> property
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* @see #getRootPane
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*
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* @beaninfo
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* hidden: true
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* description: the RootPane object for this window.
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*/
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protected void setRootPane(JRootPane root) {
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if(rootPane != null) {
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remove(rootPane);
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}
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rootPane = root;
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if(rootPane != null) {
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boolean checkingEnabled = isRootPaneCheckingEnabled();
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try {
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setRootPaneCheckingEnabled(false);
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add(rootPane, BorderLayout.CENTER);
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}
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finally {
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setRootPaneCheckingEnabled(checkingEnabled);
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}
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}
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}
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/**
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* Returns the <code>Container</code> which is the <code>contentPane</code>
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* for this window.
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*
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* @return the <code>contentPane</code> property
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* @see #setContentPane
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* @see RootPaneContainer#getContentPane
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*/
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public Container getContentPane() {
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return getRootPane().getContentPane();
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}
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/**
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* Sets the <code>contentPane</code> property for this window.
|
|
* This method is called by the constructor.
|
|
*
|
|
* @param contentPane the new <code>contentPane</code>
|
|
*
|
|
* @exception IllegalComponentStateException (a runtime
|
|
* exception) if the content pane parameter is <code>null</code>
|
|
* @see #getContentPane
|
|
* @see RootPaneContainer#setContentPane
|
|
*
|
|
* @beaninfo
|
|
* hidden: true
|
|
* description: The client area of the window where child
|
|
* components are normally inserted.
|
|
*/
|
|
public void setContentPane(Container contentPane) {
|
|
getRootPane().setContentPane(contentPane);
|
|
}
|
|
|
|
/**
|
|
* Returns the <code>layeredPane</code> object for this window.
|
|
*
|
|
* @return the <code>layeredPane</code> property
|
|
* @see #setLayeredPane
|
|
* @see RootPaneContainer#getLayeredPane
|
|
*/
|
|
public JLayeredPane getLayeredPane() {
|
|
return getRootPane().getLayeredPane();
|
|
}
|
|
|
|
/**
|
|
* Sets the <code>layeredPane</code> property.
|
|
* This method is called by the constructor.
|
|
*
|
|
* @param layeredPane the new <code>layeredPane</code> object
|
|
*
|
|
* @exception IllegalComponentStateException (a runtime
|
|
* exception) if the content pane parameter is <code>null</code>
|
|
* @see #getLayeredPane
|
|
* @see RootPaneContainer#setLayeredPane
|
|
*
|
|
* @beaninfo
|
|
* hidden: true
|
|
* description: The pane which holds the various window layers.
|
|
*/
|
|
public void setLayeredPane(JLayeredPane layeredPane) {
|
|
getRootPane().setLayeredPane(layeredPane);
|
|
}
|
|
|
|
/**
|
|
* Returns the <code>glassPane Component</code> for this window.
|
|
*
|
|
* @return the <code>glassPane</code> property
|
|
* @see #setGlassPane
|
|
* @see RootPaneContainer#getGlassPane
|
|
*/
|
|
public Component getGlassPane() {
|
|
return getRootPane().getGlassPane();
|
|
}
|
|
|
|
/**
|
|
* Sets the <code>glassPane</code> property.
|
|
* This method is called by the constructor.
|
|
* @param glassPane the <code>glassPane</code> object for this window
|
|
*
|
|
* @see #getGlassPane
|
|
* @see RootPaneContainer#setGlassPane
|
|
*
|
|
* @beaninfo
|
|
* hidden: true
|
|
* description: A transparent pane used for menu rendering.
|
|
*/
|
|
public void setGlassPane(Component glassPane) {
|
|
getRootPane().setGlassPane(glassPane);
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*
|
|
* @since 1.6
|
|
*/
|
|
public Graphics getGraphics() {
|
|
JComponent.getGraphicsInvoked(this);
|
|
return super.getGraphics();
|
|
}
|
|
|
|
/**
|
|
* Repaints the specified rectangle of this component within
|
|
* <code>time</code> milliseconds. Refer to <code>RepaintManager</code>
|
|
* for details on how the repaint is handled.
|
|
*
|
|
* @param time maximum time in milliseconds before update
|
|
* @param x the <i>x</i> coordinate
|
|
* @param y the <i>y</i> coordinate
|
|
* @param width the width
|
|
* @param height the height
|
|
* @see RepaintManager
|
|
* @since 1.6
|
|
*/
|
|
public void repaint(long time, int x, int y, int width, int height) {
|
|
if (RepaintManager.HANDLE_TOP_LEVEL_PAINT) {
|
|
RepaintManager.currentManager(this).addDirtyRegion(
|
|
this, x, y, width, height);
|
|
}
|
|
else {
|
|
super.repaint(time, x, y, width, height);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns a string representation of this <code>JWindow</code>.
|
|
* This method
|
|
* is intended to be used only for debugging purposes, and the
|
|
* content and format of the returned string may vary between
|
|
* implementations. The returned string may be empty but may not
|
|
* be <code>null</code>.
|
|
*
|
|
* @return a string representation of this <code>JWindow</code>
|
|
*/
|
|
protected String paramString() {
|
|
String rootPaneCheckingEnabledString = (rootPaneCheckingEnabled ?
|
|
"true" : "false");
|
|
|
|
return super.paramString() +
|
|
",rootPaneCheckingEnabled=" + rootPaneCheckingEnabledString;
|
|
}
|
|
|
|
|
|
/////////////////
|
|
// Accessibility support
|
|
////////////////
|
|
|
|
/** The accessible context property. */
|
|
protected AccessibleContext accessibleContext = null;
|
|
|
|
/**
|
|
* Gets the AccessibleContext associated with this JWindow.
|
|
* For JWindows, the AccessibleContext takes the form of an
|
|
* AccessibleJWindow.
|
|
* A new AccessibleJWindow instance is created if necessary.
|
|
*
|
|
* @return an AccessibleJWindow that serves as the
|
|
* AccessibleContext of this JWindow
|
|
*/
|
|
public AccessibleContext getAccessibleContext() {
|
|
if (accessibleContext == null) {
|
|
accessibleContext = new AccessibleJWindow();
|
|
}
|
|
return accessibleContext;
|
|
}
|
|
|
|
|
|
/**
|
|
* This class implements accessibility support for the
|
|
* <code>JWindow</code> class. It provides an implementation of the
|
|
* Java Accessibility API appropriate to window user-interface
|
|
* elements.
|
|
*/
|
|
protected class AccessibleJWindow extends AccessibleAWTWindow {
|
|
// everything is in the new parent, AccessibleAWTWindow
|
|
}
|
|
|
|
}
|