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public class

HeadlessToolkit

extends Toolkit
implements ComponentFactory
/*
 * Copyright (c) 2000, 2007, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */


package sun.awt;

import java.awt.*;
import java.awt.dnd.*;
import java.awt.dnd.peer.DragSourceContextPeer;
import java.awt.event.*;
import java.awt.im.InputMethodHighlight;
import java.awt.im.spi.InputMethodDescriptor;
import java.awt.image.*;
import java.awt.datatransfer.Clipboard;
import java.awt.peer.*;
import java.beans.PropertyChangeListener;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.net.URL;
import java.util.Map;
import java.util.Properties;
import sun.awt.im.InputContext;
import sun.awt.image.ImageRepresentation;

public class HeadlessToolkit extends Toolkit
   
implements ComponentFactory {

   
private Toolkit tk;
   
private ComponentFactory componentFactory;

   
public HeadlessToolkit(Toolkit tk) {
       
this.tk = tk;
       
if (tk instanceof ComponentFactory) {
            componentFactory
= (ComponentFactory)tk;
       
}
   
}

   
public Toolkit getUnderlyingToolkit() {
       
return tk;
   
}

   
/*
     * Component peer objects.
     */


   
/* Lightweight implementation of Canvas and Panel */

   
public CanvasPeer createCanvas(Canvas target) {
       
return (CanvasPeer)createComponent(target);
   
}

   
public PanelPeer createPanel(Panel target) {
       
return (PanelPeer)createComponent(target);
   
}

   
/*
     * Component peer objects - unsupported.
     */


   
public WindowPeer createWindow(Window target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public FramePeer createFrame(Frame target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public DialogPeer createDialog(Dialog target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public ButtonPeer createButton(Button target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public TextFieldPeer createTextField(TextField target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public ChoicePeer createChoice(Choice target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public LabelPeer createLabel(Label target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public ListPeer createList(List target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public CheckboxPeer createCheckbox(Checkbox target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public ScrollbarPeer createScrollbar(Scrollbar target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public ScrollPanePeer createScrollPane(ScrollPane target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public TextAreaPeer createTextArea(TextArea target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public FileDialogPeer createFileDialog(FileDialog target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public MenuBarPeer createMenuBar(MenuBar target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public MenuPeer createMenu(Menu target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public PopupMenuPeer createPopupMenu(PopupMenu target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public MenuItemPeer createMenuItem(MenuItem target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public CheckboxMenuItemPeer createCheckboxMenuItem(CheckboxMenuItem target)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public DragSourceContextPeer createDragSourceContextPeer(
       
DragGestureEvent dge)
       
throws InvalidDnDOperationException {
       
throw new InvalidDnDOperationException("Headless environment");
   
}

   
public RobotPeer createRobot(Robot target, GraphicsDevice screen)
       
throws AWTException, HeadlessException {
       
throw new HeadlessException();
   
}

   
public  KeyboardFocusManagerPeer createKeyboardFocusManagerPeer(KeyboardFocusManager manager) throws HeadlessException {
       
KeyboardFocusManagerPeerImpl peer = new KeyboardFocusManagerPeerImpl(manager);
       
return peer;
   
}

   
public TrayIconPeer createTrayIcon(TrayIcon target)
     
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public SystemTrayPeer createSystemTray(SystemTray target)
     
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public boolean isTraySupported() {
       
return false;
   
}

   
public GlobalCursorManager getGlobalCursorManager()
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
/*
     * Headless toolkit - unsupported.
     */

   
protected void loadSystemColors(int[] systemColors)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public ColorModel getColorModel()
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public int getScreenResolution()
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public Map mapInputMethodHighlight(InputMethodHighlight highlight)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public int getMenuShortcutKeyMask()
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public boolean getLockingKeyState(int keyCode)
       
throws UnsupportedOperationException {
       
throw new HeadlessException();
   
}

   
public void setLockingKeyState(int keyCode, boolean on)
       
throws UnsupportedOperationException {
       
throw new HeadlessException();
   
}

   
public Cursor createCustomCursor(Image cursor, Point hotSpot, String name)
       
throws IndexOutOfBoundsException, HeadlessException {
       
throw new HeadlessException();
   
}

   
public Dimension getBestCursorSize(int preferredWidth, int preferredHeight)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public int getMaximumCursorColors()
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public <T extends DragGestureRecognizer> T
        createDragGestureRecognizer
(Class<T> abstractRecognizerClass,
                                   
DragSource ds, Component c,
                                   
int srcActions, DragGestureListener dgl)
   
{
       
return null;
   
}

   
public int getScreenHeight()
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public int getScreenWidth()
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public Dimension getScreenSize()
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public Insets getScreenInsets(GraphicsConfiguration gc)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public void setDynamicLayout(boolean dynamic)
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
protected boolean isDynamicLayoutSet()
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public boolean isDynamicLayoutActive()
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
public Clipboard getSystemClipboard()
       
throws HeadlessException {
       
throw new HeadlessException();
   
}

   
/*
     * Printing
     */

   
public PrintJob getPrintJob(Frame frame, String jobtitle,
       
JobAttributes jobAttributes,
       
PageAttributes pageAttributes) {
       
if (frame != null) {
           
// Should never happen
           
throw new HeadlessException();
       
}
       
throw new IllegalArgumentException(
               
"PrintJob not supported in a headless environment");
   
}

   
public PrintJob getPrintJob(Frame frame, String doctitle, Properties props)
   
{
       
if (frame != null) {
           
// Should never happen
           
throw new HeadlessException();
       
}
       
throw new IllegalArgumentException(
               
"PrintJob not supported in a headless environment");
   
}

   
/*
     * Headless toolkit - supported.
     */


   
public void sync() {
       
// Do nothing
   
}

   
public void beep() {
       
// Send alert character
       
System.out.write(0x07);
   
}

   
/*
     * Event Queue
     */

   
public EventQueue getSystemEventQueueImpl() {
       
return SunToolkit.getSystemEventQueueImplPP();
   
}

   
/*
     * Images.
     */

   
public int checkImage(Image img, int w, int h, ImageObserver o) {
       
return tk.checkImage(img, w, h, o);
   
}

   
public boolean prepareImage(
       
Image img, int w, int h, ImageObserver o) {
       
return tk.prepareImage(img, w, h, o);
   
}

   
public Image getImage(String filename) {
       
return tk.getImage(filename);
   
}

   
public Image getImage(URL url) {
       
return tk.getImage(url);
   
}

   
public Image createImage(String filename) {
       
return tk.createImage(filename);
   
}

   
public Image createImage(URL url) {
       
return tk.createImage(url);
   
}

   
public Image createImage(byte[] data, int offset, int length) {
       
return tk.createImage(data, offset, length);
   
}

   
public Image createImage(ImageProducer producer) {
       
return tk.createImage(producer);
   
}

   
public Image createImage(byte[] imagedata) {
       
return tk.createImage(imagedata);
   
}


   
/*
     * Fonts
     */

   
public FontPeer getFontPeer(String name, int style) {
       
if (componentFactory != null) {
           
return componentFactory.getFontPeer(name, style);
       
}
       
return null;
   
}

   
public FontMetrics getFontMetrics(Font font) {
       
return tk.getFontMetrics(font);
   
}

   
public String[] getFontList() {
       
return tk.getFontList();
   
}

   
/*
     * Desktop properties
     */


   
public void addPropertyChangeListener(String name,
       
PropertyChangeListener pcl) {
        tk
.addPropertyChangeListener(name, pcl);
   
}

   
public void removePropertyChangeListener(String name,
       
PropertyChangeListener pcl) {
        tk
.removePropertyChangeListener(name, pcl);
   
}

   
/*
     * Modality
     */

   
public boolean isModalityTypeSupported(Dialog.ModalityType modalityType) {
       
return false;
   
}

   
public boolean isModalExclusionTypeSupported(Dialog.ModalExclusionType exclusionType) {
       
return false;
   
}

   
/*
     * Always on top
     */

   
public boolean isAlwaysOnTopSupported() {
       
return false;
   
}

   
/*
     * AWT Event listeners
     */


   
public void addAWTEventListener(AWTEventListener listener,
       
long eventMask) {
        tk
.addAWTEventListener(listener, eventMask);
   
}

   
public void removeAWTEventListener(AWTEventListener listener) {
        tk
.removeAWTEventListener(listener);
   
}

   
public AWTEventListener[] getAWTEventListeners() {
       
return tk.getAWTEventListeners();
   
}

   
public boolean isDesktopSupported() {
       
return false;
   
}

   
public DesktopPeer createDesktopPeer(Desktop target)
   
throws HeadlessException{
       
throw new HeadlessException();
   
}
}