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jlechner |
/* Toolkit.java -- AWT Toolkit superclass
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Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
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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 java.awt;
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import java.awt.datatransfer.Clipboard;
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import java.awt.dnd.DragGestureEvent;
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import java.awt.dnd.DragGestureListener;
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import java.awt.dnd.DragGestureRecognizer;
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import java.awt.dnd.DragSource;
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import java.awt.dnd.peer.DragSourceContextPeer;
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import java.awt.event.AWTEventListener;
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import java.awt.event.KeyEvent;
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import java.awt.im.InputMethodHighlight;
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import java.awt.image.ColorModel;
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import java.awt.image.ImageObserver;
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import java.awt.image.ImageProducer;
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import java.awt.peer.ButtonPeer;
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import java.awt.peer.CanvasPeer;
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import java.awt.peer.CheckboxMenuItemPeer;
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import java.awt.peer.CheckboxPeer;
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import java.awt.peer.ChoicePeer;
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import java.awt.peer.DialogPeer;
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import java.awt.peer.FileDialogPeer;
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import java.awt.peer.FontPeer;
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import java.awt.peer.FramePeer;
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import java.awt.peer.LabelPeer;
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import java.awt.peer.LightweightPeer;
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import java.awt.peer.ListPeer;
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import java.awt.peer.MenuBarPeer;
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import java.awt.peer.MenuItemPeer;
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import java.awt.peer.MenuPeer;
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import java.awt.peer.PanelPeer;
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import java.awt.peer.PopupMenuPeer;
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import java.awt.peer.ScrollPanePeer;
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import java.awt.peer.ScrollbarPeer;
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import java.awt.peer.TextAreaPeer;
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import java.awt.peer.TextFieldPeer;
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import java.awt.peer.WindowPeer;
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import java.beans.PropertyChangeListener;
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import java.beans.PropertyChangeSupport;
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import java.net.URL;
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import java.util.Map;
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import java.util.Properties;
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/**
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* The AWT system uses a set of native peer objects to implement its
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* widgets. These peers are provided by a peer toolkit, that is accessed
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* via a subclass of this superclass. The system toolkit is retrieved
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* by the static methods <code>getDefaultToolkit</code>. This method
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* determines the system toolkit by examining the system property
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* <code>awt.toolkit</code>. That property is set to the name of the
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* <code>Toolkit</code> subclass for the specified peer set. If the
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* <code>awt.toolkit</code> property is not set, then the default
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* toolkit <code>gnu.java.awt.peer.gtk.GtkToolkit</code> is used. This
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* toolkit creates its peers using the GTK+ toolkit.
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*
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* @author Aaron M. Renn (arenn@urbanophile.com)
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*/
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public abstract class Toolkit
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{
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/** The default toolkit name. */
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private static String default_toolkit_name
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= gnu.classpath.Configuration.default_awt_peer_toolkit;
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/**
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* The toolkit in use. Once we load it, we don't ever change it
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* if the awt.toolkit property is set.
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*/
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private static Toolkit toolkit;
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/** The toolkit properties. */
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private static Properties props = new Properties();
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protected final Map desktopProperties = new Properties();
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protected final PropertyChangeSupport desktopPropsSupport
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= new PropertyChangeSupport(this);
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/**
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* Default constructor for subclasses.
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*/
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public Toolkit()
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{
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}
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/**
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* Creates a peer object for the specified <code>Button</code>.
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*
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* @param target The <code>Button</code> to create the peer for.
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*
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* @return The peer for the specified <code>Button</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract ButtonPeer createButton(Button target);
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/**
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* Creates a peer object for the specified <code>TextField</code>.
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*
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* @param target The <code>TextField</code> to create the peer for.
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*
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* @return The peer for the specified <code>TextField</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract TextFieldPeer createTextField(TextField target);
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/**
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* Creates a peer object for the specified <code>Label</code>.
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*
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* @param target The <code>Label</code> to create the peer for.
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*
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* @return The peer for the specified <code>Label</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract LabelPeer createLabel(Label target);
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/**
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* Creates a peer object for the specified <code>List</code>.
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*
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* @param target The <code>List</code> to create the peer for.
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*
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* @return The peer for the specified <code>List</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract ListPeer createList(List target);
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/**
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* Creates a peer object for the specified <code>Checkbox</code>.
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*
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* @param target The <code>Checkbox</code> to create the peer for.
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*
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* @return The peer for the specified <code>Checkbox</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract CheckboxPeer createCheckbox(Checkbox target);
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/**
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* Creates a peer object for the specified <code>Scrollbar</code>.
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*
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* @param target The <code>Scrollbar</code> to create the peer for.
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*
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* @return The peer for the specified <code>Scrollbar</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract ScrollbarPeer createScrollbar(Scrollbar target);
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/**
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* Creates a peer object for the specified <code>ScrollPane</code>.
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*
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* @param target The <code>ScrollPane</code> to create the peer for.
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*
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* @return The peer for the specified <code>ScrollPane</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract ScrollPanePeer createScrollPane(ScrollPane target);
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/**
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* Creates a peer object for the specified <code>TextArea</code>.
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*
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* @param target The <code>TextArea</code> to create the peer for.
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*
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* @return The peer for the specified <code>TextArea</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract TextAreaPeer createTextArea(TextArea target);
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/**
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* Creates a peer object for the specified <code>Choice</code>.
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*
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* @param target The <code>Choice</code> to create the peer for.
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*
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* @return The peer for the specified <code>Choice</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract ChoicePeer createChoice(Choice target);
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/**
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* Creates a peer object for the specified <code>Frame</code>.
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*
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* @param target The <code>Frame</code> to create the peer for.
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*
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* @return The peer for the specified <code>Frame</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract FramePeer createFrame(Frame target);
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/**
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* Creates a peer object for the specified <code>Canvas</code>.
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*
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* @param target The <code>Canvas</code> to create the peer for.
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*
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* @return The peer for the specified <code>Canvas</code> object.
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*/
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protected abstract CanvasPeer createCanvas(Canvas target);
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/**
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* Creates a peer object for the specified <code>Panel</code>.
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*
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* @param target The <code>Panel</code> to create the peer for.
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*
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* @return The peer for the specified <code>Panel</code> object.
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*/
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protected abstract PanelPeer createPanel(Panel target);
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/**
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* Creates a peer object for the specified <code>Window</code>.
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*
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* @param target The <code>Window</code> to create the peer for.
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*
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* @return The peer for the specified <code>Window</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract WindowPeer createWindow(Window target);
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/**
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* Creates a peer object for the specified <code>Dialog</code>.
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*
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* @param target The dialog to create the peer for
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*
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* @return The peer for the specified font name.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract DialogPeer createDialog(Dialog target);
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/**
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* Creates a peer object for the specified <code>MenuBar</code>.
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*
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* @param target The <code>MenuBar</code> to create the peer for.
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*
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* @return The peer for the specified <code>MenuBar</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract MenuBarPeer createMenuBar(MenuBar target);
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/**
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* Creates a peer object for the specified <code>Menu</code>.
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*
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* @param target The <code>Menu</code> to create the peer for.
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*
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* @return The peer for the specified <code>Menu</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract MenuPeer createMenu(Menu target);
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/**
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* Creates a peer object for the specified <code>PopupMenu</code>.
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*
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* @param target The <code>PopupMenu</code> to create the peer for.
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*
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* @return The peer for the specified <code>PopupMenu</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract PopupMenuPeer createPopupMenu(PopupMenu target);
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/**
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* Creates a peer object for the specified <code>MenuItem</code>.
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*
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* @param target The <code>MenuItem</code> to create the peer for.
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*
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* @return The peer for the specified <code>MenuItem</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract MenuItemPeer createMenuItem(MenuItem target);
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/**
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* Creates a peer object for the specified <code>FileDialog</code>.
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*
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* @param target The <code>FileDialog</code> to create the peer for.
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*
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* @return The peer for the specified <code>FileDialog</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract FileDialogPeer createFileDialog(FileDialog target);
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/**
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* Creates a peer object for the specified <code>CheckboxMenuItem</code>.
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*
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* @param target The <code>CheckboxMenuItem</code> to create the peer for.
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*
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* @return The peer for the specified <code>CheckboxMenuItem</code> object.
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*
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* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
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*/
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protected abstract CheckboxMenuItemPeer
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createCheckboxMenuItem(CheckboxMenuItem target);
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/**
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* Creates a peer object for the specified <code>Component</code>. The
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* peer returned by this method is not a native windowing system peer
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* with its own native window. Instead, this method allows the component
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* to draw on its parent window as a "lightweight" widget.
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*
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* @param target The <code>Component</code> to create the peer for.
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*
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* @return The peer for the specified <code>Component</code> object.
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*/
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protected LightweightPeer createComponent(Component target)
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{
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return new gnu.java.awt.peer.GLightweightPeer (target);
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}
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/**
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* Creates a peer object for the specified font name.
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|
*
|
358 |
|
|
* @param name The font to create the peer for.
|
359 |
|
|
* @param style The font style to create the peer for.
|
360 |
|
|
*
|
361 |
|
|
* @return The peer for the specified font name.
|
362 |
|
|
*
|
363 |
|
|
* @deprecated
|
364 |
|
|
*/
|
365 |
|
|
protected abstract FontPeer getFontPeer(String name, int style);
|
366 |
|
|
|
367 |
|
|
/**
|
368 |
|
|
* Copies the current system colors into the specified array. This is
|
369 |
|
|
* the interface used by the <code>SystemColor</code> class. Although
|
370 |
|
|
* this method fills in the array with some default colors a real Toolkit
|
371 |
|
|
* should override this method and provide real system colors for the
|
372 |
|
|
* native GUI platform.
|
373 |
|
|
*
|
374 |
|
|
* @param systemColors The array to copy the system colors into.
|
375 |
|
|
* It must be at least 26 elements.
|
376 |
|
|
*
|
377 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
378 |
|
|
*
|
379 |
|
|
* @see java.awt.SystemColor
|
380 |
|
|
*/
|
381 |
|
|
protected void loadSystemColors(int systemColors[])
|
382 |
|
|
{
|
383 |
|
|
systemColors[SystemColor.DESKTOP] = 0xFF005C5C;
|
384 |
|
|
systemColors[SystemColor.ACTIVE_CAPTION] = 0xFF000080;
|
385 |
|
|
systemColors[SystemColor.ACTIVE_CAPTION_TEXT] = 0xFFFFFFFF;
|
386 |
|
|
systemColors[SystemColor.ACTIVE_CAPTION_BORDER] = 0xFFC0C0C0;
|
387 |
|
|
systemColors[SystemColor.INACTIVE_CAPTION] = 0xFF808080;
|
388 |
|
|
systemColors[SystemColor.INACTIVE_CAPTION_TEXT] = 0xFFC0C0C0;
|
389 |
|
|
systemColors[SystemColor.INACTIVE_CAPTION_BORDER] = 0xFFC0C0C0;
|
390 |
|
|
systemColors[SystemColor.WINDOW] = 0xFFFFFFFF;
|
391 |
|
|
systemColors[SystemColor.WINDOW_BORDER] = 0xFF000000;
|
392 |
|
|
systemColors[SystemColor.WINDOW_TEXT] = 0xFF000000;
|
393 |
|
|
systemColors[SystemColor.MENU] = 0xFFC0C0C0;
|
394 |
|
|
systemColors[SystemColor.MENU_TEXT] = 0xFF000000;
|
395 |
|
|
systemColors[SystemColor.TEXT] = 0xFFC0C0C0;
|
396 |
|
|
systemColors[SystemColor.TEXT_TEXT] = 0xFF000000;
|
397 |
|
|
systemColors[SystemColor.TEXT_HIGHLIGHT] = 0xFF000090;
|
398 |
|
|
systemColors[SystemColor.TEXT_HIGHLIGHT_TEXT] = 0xFFFFFFFF;
|
399 |
|
|
systemColors[SystemColor.TEXT_INACTIVE_TEXT] = 0xFF808080;
|
400 |
|
|
systemColors[SystemColor.CONTROL] = 0xFFC0C0C0;
|
401 |
|
|
systemColors[SystemColor.CONTROL_TEXT] = 0xFF000000;
|
402 |
|
|
systemColors[SystemColor.CONTROL_HIGHLIGHT] = 0xFFFFFFFF;
|
403 |
|
|
systemColors[SystemColor.CONTROL_LT_HIGHLIGHT] = 0xFFE0E0E0;
|
404 |
|
|
systemColors[SystemColor.CONTROL_SHADOW] = 0xFF808080;
|
405 |
|
|
systemColors[SystemColor.CONTROL_DK_SHADOW] = 0xFF000000;
|
406 |
|
|
systemColors[SystemColor.SCROLLBAR] = 0xFFE0E0E0;
|
407 |
|
|
systemColors[SystemColor.INFO] = 0xFFE0E000;
|
408 |
|
|
systemColors[SystemColor.INFO_TEXT] = 0xFF000000;
|
409 |
|
|
}
|
410 |
|
|
|
411 |
|
|
/**
|
412 |
|
|
* @since 1.4
|
413 |
|
|
*
|
414 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
415 |
|
|
*/
|
416 |
|
|
public void setDynamicLayout(boolean dynamic)
|
417 |
|
|
{
|
418 |
|
|
}
|
419 |
|
|
|
420 |
|
|
/**
|
421 |
|
|
* @since 1.4
|
422 |
|
|
*
|
423 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
424 |
|
|
*/
|
425 |
|
|
protected boolean isDynamicLayoutSet()
|
426 |
|
|
{
|
427 |
|
|
return false;
|
428 |
|
|
}
|
429 |
|
|
|
430 |
|
|
/**
|
431 |
|
|
* @since 1.4
|
432 |
|
|
*
|
433 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
434 |
|
|
*/
|
435 |
|
|
public boolean isDynamicLayoutActive()
|
436 |
|
|
{
|
437 |
|
|
return false;
|
438 |
|
|
}
|
439 |
|
|
|
440 |
|
|
/**
|
441 |
|
|
* Returns the dimensions of the screen in pixels.
|
442 |
|
|
*
|
443 |
|
|
* @return The dimensions of the screen in pixels.
|
444 |
|
|
*
|
445 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
446 |
|
|
*/
|
447 |
|
|
public abstract Dimension getScreenSize();
|
448 |
|
|
|
449 |
|
|
/**
|
450 |
|
|
* Returns the screen resolution in dots per square inch.
|
451 |
|
|
*
|
452 |
|
|
* @return The screen resolution in dots per square inch.
|
453 |
|
|
*
|
454 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
455 |
|
|
*/
|
456 |
|
|
public abstract int getScreenResolution();
|
457 |
|
|
|
458 |
|
|
/**
|
459 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
460 |
|
|
*
|
461 |
|
|
* @since 1.4
|
462 |
|
|
*/
|
463 |
|
|
public Insets getScreenInsets(GraphicsConfiguration gc)
|
464 |
|
|
{
|
465 |
|
|
return null;
|
466 |
|
|
}
|
467 |
|
|
|
468 |
|
|
/**
|
469 |
|
|
* Returns the color model of the screen.
|
470 |
|
|
*
|
471 |
|
|
* @return The color model of the screen.
|
472 |
|
|
*
|
473 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
474 |
|
|
*/
|
475 |
|
|
public abstract ColorModel getColorModel();
|
476 |
|
|
|
477 |
|
|
/**
|
478 |
|
|
* Returns the names of the available fonts.
|
479 |
|
|
*
|
480 |
|
|
* @return The names of the available fonts.
|
481 |
|
|
*
|
482 |
|
|
* @deprecated
|
483 |
|
|
*/
|
484 |
|
|
public abstract String[] getFontList();
|
485 |
|
|
|
486 |
|
|
/**
|
487 |
|
|
* Return the font metrics for the specified font
|
488 |
|
|
*
|
489 |
|
|
* @param name The name of the font to return metrics for.
|
490 |
|
|
*
|
491 |
|
|
* @return The requested font metrics.
|
492 |
|
|
*
|
493 |
|
|
* @deprecated
|
494 |
|
|
*/
|
495 |
|
|
public abstract FontMetrics getFontMetrics(Font name);
|
496 |
|
|
|
497 |
|
|
/**
|
498 |
|
|
* Flushes any buffered data to the screen so that it is in sync with
|
499 |
|
|
* what the AWT system has drawn to it.
|
500 |
|
|
*/
|
501 |
|
|
public abstract void sync();
|
502 |
|
|
|
503 |
|
|
/**
|
504 |
|
|
* Returns an instance of the default toolkit. The default toolkit is
|
505 |
|
|
* the subclass of <code>Toolkit</code> specified in the system property
|
506 |
|
|
* <code>awt.toolkit</code>, or <code>gnu.java.awt.peer.gtk.GtkToolkit</code>
|
507 |
|
|
* if the property is not set.
|
508 |
|
|
*
|
509 |
|
|
* @return An instance of the system default toolkit.
|
510 |
|
|
*
|
511 |
|
|
* @throws AWTError If the toolkit cannot be loaded.
|
512 |
|
|
*/
|
513 |
|
|
public static Toolkit getDefaultToolkit()
|
514 |
|
|
{
|
515 |
|
|
if (toolkit != null)
|
516 |
|
|
return toolkit;
|
517 |
|
|
String toolkit_name = System.getProperty("awt.toolkit",
|
518 |
|
|
default_toolkit_name);
|
519 |
|
|
try
|
520 |
|
|
{
|
521 |
|
|
Class cls = Class.forName(toolkit_name);
|
522 |
|
|
Object obj = cls.newInstance();
|
523 |
|
|
if (!(obj instanceof Toolkit))
|
524 |
|
|
throw new AWTError(toolkit_name + " is not a subclass of " +
|
525 |
|
|
"java.awt.Toolkit");
|
526 |
|
|
toolkit = (Toolkit) obj;
|
527 |
|
|
return toolkit;
|
528 |
|
|
}
|
529 |
|
|
catch (ThreadDeath death)
|
530 |
|
|
{
|
531 |
|
|
throw death;
|
532 |
|
|
}
|
533 |
|
|
catch (Throwable t)
|
534 |
|
|
{
|
535 |
|
|
AWTError e = new AWTError("Cannot load AWT toolkit: " + toolkit_name);
|
536 |
|
|
throw (AWTError) e.initCause(t);
|
537 |
|
|
}
|
538 |
|
|
}
|
539 |
|
|
|
540 |
|
|
/**
|
541 |
|
|
* Returns an image from the specified file, which must be in a
|
542 |
|
|
* recognized format. Supported formats vary from toolkit to toolkit.
|
543 |
|
|
*
|
544 |
|
|
* @return name The name of the file to read the image from.
|
545 |
|
|
*/
|
546 |
|
|
public abstract Image getImage(String name);
|
547 |
|
|
|
548 |
|
|
/**
|
549 |
|
|
* Returns an image from the specified URL, which must be in a
|
550 |
|
|
* recognized format. Supported formats vary from toolkit to toolkit.
|
551 |
|
|
*
|
552 |
|
|
* @return url The URl to read the image from.
|
553 |
|
|
*/
|
554 |
|
|
public abstract Image getImage(URL url);
|
555 |
|
|
|
556 |
|
|
public abstract Image createImage(String filename);
|
557 |
|
|
|
558 |
|
|
public abstract Image createImage(URL url);
|
559 |
|
|
|
560 |
|
|
/**
|
561 |
|
|
* Readies an image to be rendered on the screen. The width and height
|
562 |
|
|
* values can be set to the default sizes for the image by passing -1
|
563 |
|
|
* in those parameters.
|
564 |
|
|
*
|
565 |
|
|
* @param image The image to prepare for rendering.
|
566 |
|
|
* @param width The width of the image.
|
567 |
|
|
* @param height The height of the image.
|
568 |
|
|
* @param observer The observer to receive events about the preparation
|
569 |
|
|
* process.
|
570 |
|
|
*
|
571 |
|
|
* @return <code>true</code> if the image is already prepared for rendering,
|
572 |
|
|
* <code>false</code> otherwise.
|
573 |
|
|
*/
|
574 |
|
|
public abstract boolean prepareImage(Image image, int width, int height,
|
575 |
|
|
ImageObserver observer);
|
576 |
|
|
|
577 |
|
|
/**
|
578 |
|
|
* Checks the status of specified image as it is being readied for
|
579 |
|
|
* rendering.
|
580 |
|
|
*
|
581 |
|
|
* @param image The image to prepare for rendering.
|
582 |
|
|
* @param width The width of the image.
|
583 |
|
|
* @param height The height of the image.
|
584 |
|
|
* @param observer The observer to receive events about the preparation
|
585 |
|
|
* process.
|
586 |
|
|
*
|
587 |
|
|
* @return A union of the bitmasks from
|
588 |
|
|
* <code>java.awt.image.ImageObserver</code> that indicates the current
|
589 |
|
|
* state of the imaging readying process.
|
590 |
|
|
*/
|
591 |
|
|
public abstract int checkImage(Image image, int width, int height,
|
592 |
|
|
ImageObserver observer);
|
593 |
|
|
|
594 |
|
|
/**
|
595 |
|
|
* Creates an image using the specified <code>ImageProducer</code>
|
596 |
|
|
*
|
597 |
|
|
* @param producer The <code>ImageProducer</code> to create the image from.
|
598 |
|
|
*
|
599 |
|
|
* @return The created image.
|
600 |
|
|
*/
|
601 |
|
|
public abstract Image createImage(ImageProducer producer);
|
602 |
|
|
|
603 |
|
|
/**
|
604 |
|
|
* Creates an image from the specified byte array. The array must be in
|
605 |
|
|
* a recognized format. Supported formats vary from toolkit to toolkit.
|
606 |
|
|
*
|
607 |
|
|
* @param data The raw image data.
|
608 |
|
|
*
|
609 |
|
|
* @return The created image.
|
610 |
|
|
*/
|
611 |
|
|
public Image createImage(byte[] data)
|
612 |
|
|
{
|
613 |
|
|
return createImage(data, 0, data.length);
|
614 |
|
|
}
|
615 |
|
|
|
616 |
|
|
/**
|
617 |
|
|
* Creates an image from the specified portion of the byte array passed.
|
618 |
|
|
* The array must be in a recognized format. Supported formats vary from
|
619 |
|
|
* toolkit to toolkit.
|
620 |
|
|
*
|
621 |
|
|
* @param data The raw image data.
|
622 |
|
|
* @param offset The offset into the data where the image data starts.
|
623 |
|
|
* @param len The length of the image data.
|
624 |
|
|
*
|
625 |
|
|
* @return The created image.
|
626 |
|
|
*/
|
627 |
|
|
public abstract Image createImage(byte[] data, int offset, int len);
|
628 |
|
|
|
629 |
|
|
/**
|
630 |
|
|
* Returns a instance of <code>PrintJob</code> for the specified
|
631 |
|
|
* arguments.
|
632 |
|
|
*
|
633 |
|
|
* @param frame The window initiating the print job.
|
634 |
|
|
* @param title The print job title.
|
635 |
|
|
* @param props The print job properties.
|
636 |
|
|
*
|
637 |
|
|
* @return The requested print job, or <code>null</code> if the job
|
638 |
|
|
* was cancelled.
|
639 |
|
|
*
|
640 |
|
|
* @exception NullPointerException If frame is null,
|
641 |
|
|
* or GraphicsEnvironment.isHeadless() returns true.
|
642 |
|
|
* @exception SecurityException If this thread is not allowed to initiate
|
643 |
|
|
* a print job request.
|
644 |
|
|
*/
|
645 |
|
|
public abstract PrintJob getPrintJob(Frame frame, String title,
|
646 |
|
|
Properties props);
|
647 |
|
|
|
648 |
|
|
/**
|
649 |
|
|
* Returns a instance of <code>PrintJob</code> for the specified
|
650 |
|
|
* arguments.
|
651 |
|
|
*
|
652 |
|
|
* @param frame The window initiating the print job.
|
653 |
|
|
* @param title The print job title.
|
654 |
|
|
* @param jobAttr A set of job attributes which will control the print job.
|
655 |
|
|
* @param pageAttr A set of page attributes which will control the print job.
|
656 |
|
|
*
|
657 |
|
|
* @exception NullPointerException If frame is null, and either jobAttr is null
|
658 |
|
|
* or jobAttr.getDialog() returns JobAttributes.DialogType.NATIVE.
|
659 |
|
|
* @exception IllegalArgumentException If pageAttrspecifies differing cross
|
660 |
|
|
* feed and feed resolutions, or when GraphicsEnvironment.isHeadless() returns
|
661 |
|
|
* true.
|
662 |
|
|
* @exception SecurityException If this thread is not allowed to initiate
|
663 |
|
|
* a print job request.
|
664 |
|
|
*
|
665 |
|
|
* @since 1.3
|
666 |
|
|
*/
|
667 |
|
|
public PrintJob getPrintJob(Frame frame, String title,
|
668 |
|
|
JobAttributes jobAttr, PageAttributes pageAttr)
|
669 |
|
|
{
|
670 |
|
|
return null;
|
671 |
|
|
}
|
672 |
|
|
|
673 |
|
|
/**
|
674 |
|
|
* Causes a "beep" tone to be generated.
|
675 |
|
|
*/
|
676 |
|
|
public abstract void beep();
|
677 |
|
|
|
678 |
|
|
/**
|
679 |
|
|
* Returns the system clipboard.
|
680 |
|
|
*
|
681 |
|
|
* @return THe system clipboard.
|
682 |
|
|
*
|
683 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
684 |
|
|
*/
|
685 |
|
|
public abstract Clipboard getSystemClipboard();
|
686 |
|
|
|
687 |
|
|
/**
|
688 |
|
|
* Gets the singleton instance of the system selection as a Clipboard object.
|
689 |
|
|
*
|
690 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
691 |
|
|
*
|
692 |
|
|
* @since 1.4
|
693 |
|
|
*/
|
694 |
|
|
public Clipboard getSystemSelection()
|
695 |
|
|
{
|
696 |
|
|
return null;
|
697 |
|
|
}
|
698 |
|
|
|
699 |
|
|
/**
|
700 |
|
|
* Returns the accelerator key mask for menu shortcuts. The default is
|
701 |
|
|
* <code>Event.CTRL_MASK</code>. A toolkit must override this method
|
702 |
|
|
* to change the default.
|
703 |
|
|
*
|
704 |
|
|
* @return The key mask for the menu accelerator key.
|
705 |
|
|
*
|
706 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
707 |
|
|
*/
|
708 |
|
|
public int getMenuShortcutKeyMask()
|
709 |
|
|
{
|
710 |
|
|
return Event.CTRL_MASK;
|
711 |
|
|
}
|
712 |
|
|
|
713 |
|
|
/**
|
714 |
|
|
* Returns whether the given locking key on the keyboard is currently in its
|
715 |
|
|
* "on" state.
|
716 |
|
|
*
|
717 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
718 |
|
|
* @exception IllegalArgumentException If keyCode is not one of the valid keys.
|
719 |
|
|
* @exception UnsupportedOperationException If the host system doesn't allow
|
720 |
|
|
* getting the state of this key programmatically, or if the keyboard doesn't
|
721 |
|
|
* have this key.
|
722 |
|
|
*/
|
723 |
|
|
public boolean getLockingKeyState(int keyCode)
|
724 |
|
|
{
|
725 |
|
|
if (keyCode != KeyEvent.VK_CAPS_LOCK
|
726 |
|
|
&& keyCode != KeyEvent.VK_NUM_LOCK
|
727 |
|
|
&& keyCode != KeyEvent.VK_SCROLL_LOCK)
|
728 |
|
|
throw new IllegalArgumentException();
|
729 |
|
|
|
730 |
|
|
throw new UnsupportedOperationException();
|
731 |
|
|
}
|
732 |
|
|
|
733 |
|
|
/**
|
734 |
|
|
* Sets the state of the given locking key on the keyboard.
|
735 |
|
|
*
|
736 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
737 |
|
|
* @exception IllegalArgumentException If keyCode is not one of the valid keys.
|
738 |
|
|
* @exception UnsupportedOperationException If the host system doesn't allow
|
739 |
|
|
* getting the state of this key programmatically, or if the keyboard doesn't
|
740 |
|
|
* have this key.
|
741 |
|
|
*/
|
742 |
|
|
public void setLockingKeyState(int keyCode, boolean on)
|
743 |
|
|
{
|
744 |
|
|
if (keyCode != KeyEvent.VK_CAPS_LOCK
|
745 |
|
|
&& keyCode != KeyEvent.VK_NUM_LOCK
|
746 |
|
|
&& keyCode != KeyEvent.VK_SCROLL_LOCK)
|
747 |
|
|
throw new IllegalArgumentException();
|
748 |
|
|
|
749 |
|
|
throw new UnsupportedOperationException();
|
750 |
|
|
}
|
751 |
|
|
|
752 |
|
|
/**
|
753 |
|
|
* Returns the native container object of the specified component. This
|
754 |
|
|
* method is necessary because the parent component might be a lightweight
|
755 |
|
|
* component.
|
756 |
|
|
*
|
757 |
|
|
* @param component The component to fetch the native container for.
|
758 |
|
|
*
|
759 |
|
|
* @return The native container object for this component.
|
760 |
|
|
*/
|
761 |
|
|
protected static Container getNativeContainer(Component component)
|
762 |
|
|
{
|
763 |
|
|
component = component.getParent();
|
764 |
|
|
while (true)
|
765 |
|
|
{
|
766 |
|
|
if (component == null)
|
767 |
|
|
return null;
|
768 |
|
|
if (! (component instanceof Container))
|
769 |
|
|
{
|
770 |
|
|
component = component.getParent();
|
771 |
|
|
continue;
|
772 |
|
|
}
|
773 |
|
|
if (component.getPeer() instanceof LightweightPeer)
|
774 |
|
|
{
|
775 |
|
|
component = component.getParent();
|
776 |
|
|
continue;
|
777 |
|
|
}
|
778 |
|
|
return (Container) component;
|
779 |
|
|
}
|
780 |
|
|
}
|
781 |
|
|
|
782 |
|
|
/**
|
783 |
|
|
* Creates a new custom cursor object.
|
784 |
|
|
*
|
785 |
|
|
* @exception IndexOutOfBoundsException If the hotSpot values are outside
|
786 |
|
|
* the bounds of the cursor.
|
787 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
788 |
|
|
*/
|
789 |
|
|
public Cursor createCustomCursor(Image cursor, Point hotSpot, String name)
|
790 |
|
|
{
|
791 |
|
|
// Presumably the only reason this isn't abstract is for backwards
|
792 |
|
|
// compatibility? FIXME?
|
793 |
|
|
if (GraphicsEnvironment.isHeadless())
|
794 |
|
|
throw new HeadlessException("No custom cursor in an headless graphics "
|
795 |
|
|
+ "environment.");
|
796 |
|
|
return null;
|
797 |
|
|
}
|
798 |
|
|
|
799 |
|
|
/**
|
800 |
|
|
* Returns the supported cursor dimension which is closest to the
|
801 |
|
|
* desired sizes.
|
802 |
|
|
*
|
803 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
804 |
|
|
*/
|
805 |
|
|
public Dimension getBestCursorSize(int preferredWidth, int preferredHeight)
|
806 |
|
|
{
|
807 |
|
|
if (GraphicsEnvironment.isHeadless())
|
808 |
|
|
throw new HeadlessException("No best cursor size in an headless "
|
809 |
|
|
+ "graphics environment.");
|
810 |
|
|
return new Dimension (0,0);
|
811 |
|
|
}
|
812 |
|
|
|
813 |
|
|
/**
|
814 |
|
|
* Returns the maximum number of colors the Toolkit supports in a custom
|
815 |
|
|
* cursor palette.
|
816 |
|
|
*
|
817 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
818 |
|
|
*/
|
819 |
|
|
public int getMaximumCursorColors()
|
820 |
|
|
{
|
821 |
|
|
return 0;
|
822 |
|
|
}
|
823 |
|
|
|
824 |
|
|
/**
|
825 |
|
|
* Returns whether Toolkit supports this state for Frames.
|
826 |
|
|
*
|
827 |
|
|
* @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
|
828 |
|
|
*
|
829 |
|
|
* @since 1.4
|
830 |
|
|
*/
|
831 |
|
|
public boolean isFrameStateSupported(int state)
|
832 |
|
|
{
|
833 |
|
|
return false;
|
834 |
|
|
}
|
835 |
|
|
|
836 |
|
|
/**
|
837 |
|
|
* Returns the value of the property with the specified name, or the
|
838 |
|
|
* default value if the property does not exist.
|
839 |
|
|
*
|
840 |
|
|
* @param key The name of the property to retrieve.
|
841 |
|
|
* @param def The default value of the property.
|
842 |
|
|
*/
|
843 |
|
|
public static String getProperty(String key, String def)
|
844 |
|
|
{
|
845 |
|
|
return props.getProperty(key, def);
|
846 |
|
|
}
|
847 |
|
|
|
848 |
|
|
|
849 |
|
|
/**
|
850 |
|
|
* Returns the event queue that is suitable for the calling context.
|
851 |
|
|
*
|
852 |
|
|
* <p>Despite the word “System” in the name of this
|
853 |
|
|
* method, a toolkit may provide different event queues for each
|
854 |
|
|
* applet. There is no guarantee that the same queue is shared
|
855 |
|
|
* system-wide.
|
856 |
|
|
*
|
857 |
|
|
* <p>The implementation first checks whether a
|
858 |
|
|
* SecurityManager has been installed. If so, its {@link
|
859 |
|
|
* java.lang.SecurityManager#checkAwtEventQueueAccess()} method gets
|
860 |
|
|
* called. The security manager will throw a SecurityException if it
|
861 |
|
|
* does not grant the permission to access the event queue.
|
862 |
|
|
*
|
863 |
|
|
* <p>Next, the call is delegated to {@link
|
864 |
|
|
* #getSystemEventQueueImpl()}.
|
865 |
|
|
*
|
866 |
|
|
* @return The event queue for this applet (or application).
|
867 |
|
|
*
|
868 |
|
|
* @throws SecurityException if a security manager has been
|
869 |
|
|
* installed, and it does not grant the permission to access the
|
870 |
|
|
* event queue.
|
871 |
|
|
*/
|
872 |
|
|
public final EventQueue getSystemEventQueue()
|
873 |
|
|
{
|
874 |
|
|
SecurityManager sm;
|
875 |
|
|
|
876 |
|
|
sm = System.getSecurityManager();
|
877 |
|
|
if (sm != null)
|
878 |
|
|
sm.checkAwtEventQueueAccess();
|
879 |
|
|
|
880 |
|
|
return getSystemEventQueueImpl();
|
881 |
|
|
}
|
882 |
|
|
|
883 |
|
|
|
884 |
|
|
/**
|
885 |
|
|
* Returns the event queue that is suitable for the calling context.
|
886 |
|
|
*
|
887 |
|
|
* <p>Despite the word “System” in the name of this
|
888 |
|
|
* method, a toolkit may provide different event queues for each
|
889 |
|
|
* applet. There is no guarantee that the same queue is shared
|
890 |
|
|
* system-wide.
|
891 |
|
|
*
|
892 |
|
|
* <p>No security checks are performed, which is why this method
|
893 |
|
|
* may only be called by Toolkits.
|
894 |
|
|
*
|
895 |
|
|
* @see #getSystemEventQueue()
|
896 |
|
|
*/
|
897 |
|
|
protected abstract EventQueue getSystemEventQueueImpl();
|
898 |
|
|
|
899 |
|
|
|
900 |
|
|
/**
|
901 |
|
|
* @since 1.3
|
902 |
|
|
*/
|
903 |
|
|
public abstract DragSourceContextPeer
|
904 |
|
|
createDragSourceContextPeer(DragGestureEvent e);
|
905 |
|
|
|
906 |
|
|
/**
|
907 |
|
|
* @since 1.3
|
908 |
|
|
*/
|
909 |
|
|
public DragGestureRecognizer
|
910 |
|
|
createDragGestureRecognizer(Class recognizer, DragSource ds,
|
911 |
|
|
Component comp, int actions,
|
912 |
|
|
DragGestureListener l)
|
913 |
|
|
{
|
914 |
|
|
return null;
|
915 |
|
|
}
|
916 |
|
|
|
917 |
|
|
public final Object getDesktopProperty(String propertyName)
|
918 |
|
|
{
|
919 |
|
|
return desktopProperties.get(propertyName);
|
920 |
|
|
}
|
921 |
|
|
|
922 |
|
|
protected final void setDesktopProperty(String name, Object newValue)
|
923 |
|
|
{
|
924 |
|
|
Object oldValue = getDesktopProperty(name);
|
925 |
|
|
desktopProperties.put(name, newValue);
|
926 |
|
|
desktopPropsSupport.firePropertyChange(name, oldValue, newValue);
|
927 |
|
|
}
|
928 |
|
|
|
929 |
|
|
protected Object lazilyLoadDesktopProperty(String name)
|
930 |
|
|
{
|
931 |
|
|
// FIXME - what is this??
|
932 |
|
|
return null;
|
933 |
|
|
}
|
934 |
|
|
|
935 |
|
|
protected void initializeDesktopProperties()
|
936 |
|
|
{
|
937 |
|
|
// Overridden by toolkit implementation?
|
938 |
|
|
}
|
939 |
|
|
|
940 |
|
|
public void addPropertyChangeListener(String name,
|
941 |
|
|
PropertyChangeListener pcl)
|
942 |
|
|
{
|
943 |
|
|
desktopPropsSupport.addPropertyChangeListener(name, pcl);
|
944 |
|
|
}
|
945 |
|
|
|
946 |
|
|
public void removePropertyChangeListener(String name,
|
947 |
|
|
PropertyChangeListener pcl)
|
948 |
|
|
{
|
949 |
|
|
desktopPropsSupport.removePropertyChangeListener(name, pcl);
|
950 |
|
|
}
|
951 |
|
|
|
952 |
|
|
/**
|
953 |
|
|
* @since 1.4
|
954 |
|
|
*/
|
955 |
|
|
public PropertyChangeListener[] getPropertyChangeListeners()
|
956 |
|
|
{
|
957 |
|
|
return desktopPropsSupport.getPropertyChangeListeners();
|
958 |
|
|
}
|
959 |
|
|
|
960 |
|
|
/**
|
961 |
|
|
* @since 1.4
|
962 |
|
|
*/
|
963 |
|
|
public PropertyChangeListener[] getPropertyChangeListeners(String name)
|
964 |
|
|
{
|
965 |
|
|
return desktopPropsSupport.getPropertyChangeListeners(name);
|
966 |
|
|
}
|
967 |
|
|
|
968 |
|
|
public void addAWTEventListener(AWTEventListener listener, long eventMask)
|
969 |
|
|
{
|
970 |
|
|
// SecurityManager s = System.getSecurityManager();
|
971 |
|
|
// if (s != null)
|
972 |
|
|
// s.checkPermission(AWTPermission("listenToAllAWTEvents"));
|
973 |
|
|
// FIXME
|
974 |
|
|
}
|
975 |
|
|
|
976 |
|
|
public void removeAWTEventListener(AWTEventListener listener)
|
977 |
|
|
{
|
978 |
|
|
// FIXME
|
979 |
|
|
}
|
980 |
|
|
|
981 |
|
|
/**
|
982 |
|
|
* @since 1.4
|
983 |
|
|
*/
|
984 |
|
|
public AWTEventListener[] getAWTEventListeners()
|
985 |
|
|
{
|
986 |
|
|
return null;
|
987 |
|
|
}
|
988 |
|
|
|
989 |
|
|
/**
|
990 |
|
|
* @since 1.4
|
991 |
|
|
*/
|
992 |
|
|
public AWTEventListener[] getAWTEventListeners(long mask)
|
993 |
|
|
{
|
994 |
|
|
return null;
|
995 |
|
|
}
|
996 |
|
|
|
997 |
|
|
/**
|
998 |
|
|
* @since 1.3
|
999 |
|
|
*/
|
1000 |
|
|
public abstract Map mapInputMethodHighlight(InputMethodHighlight highlight);
|
1001 |
|
|
} // class Toolkit
|