Back to index...

	/*
	* Copyright (c) 2000, 2012, 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 sun.awt.datatransfer.DataTransferer;

	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.image.*;
	import java.awt.datatransfer.Clipboard;
	import java.awt.peer.*;
	import java.beans.PropertyChangeListener;
	import java.net.URL;
	import java.util.Map;
	import java.util.Properties;

	public class HeadlessToolkit extends Toolkit
	implements ComponentFactory, KeyboardFocusManagerPeerProvider {

	private static final KeyboardFocusManagerPeer kfmPeer = new KeyboardFocusManagerPeer() {
	public void setCurrentFocusedWindow(Window win) {}
	public Window getCurrentFocusedWindow() { return null; }
	public void setCurrentFocusOwner(Component comp) {}
	public Component getCurrentFocusOwner() { return null; }
	public void clearGlobalFocusOwner(Window activeWindow) {}
	};

	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 getKeyboardFocusManagerPeer() {
	// See 6833019.
	return kfmPeer;
	}

	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 NullPointerException("frame must not be null");
	}

	public PrintJob getPrintJob(Frame frame, String doctitle, Properties props)
	{
	if (frame != null) {
	// Should never happen
	throw new HeadlessException();
	}
	throw new NullPointerException("frame must not be null");
	}

	/*
	* 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
	*/
	@SuppressWarnings("deprecation")
	public FontPeer getFontPeer(String name, int style) {
	if (componentFactory != null) {
	return componentFactory.getFontPeer(name, style);
	}
	return null;
	}

	@Override
	public DataTransferer getDataTransferer() {
	return null;
	}

	@SuppressWarnings("deprecation")
	public FontMetrics getFontMetrics(Font font) {
	return tk.getFontMetrics(font);
	}

	@SuppressWarnings("deprecation")
	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 AWTEventListener[] getAWTEventListeners(long eventMask) {
	return tk.getAWTEventListeners(eventMask);
	}

	public boolean isDesktopSupported() {
	return false;
	}

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

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

Back to index...