| /* DragGestureRecognizer.java -- |
| Copyright (C) 2002 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package java.awt.dnd; |
| |
| import java.awt.Component; |
| import java.awt.Point; |
| import java.awt.event.InputEvent; |
| import java.io.IOException; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.io.Serializable; |
| import java.util.ArrayList; |
| import java.util.TooManyListenersException; |
| |
| /** |
| * STUBBED |
| * @since 1.2 |
| */ |
| public abstract class DragGestureRecognizer implements Serializable |
| { |
| /** |
| * Compatible with JDK 1.2+. |
| */ |
| private static final long serialVersionUID = 8996673345831063337L; |
| |
| protected DragSource dragSource; |
| protected Component component; |
| protected transient DragGestureListener dragGestureListener; |
| protected int sourceActions; |
| protected ArrayList events = new ArrayList(); |
| |
| protected DragGestureRecognizer(DragSource ds, Component c, int sa, |
| DragGestureListener dgl) |
| { |
| if (ds == null) |
| throw new IllegalArgumentException(); |
| dragSource = ds; |
| component = c; |
| sourceActions = sa; |
| dragGestureListener = dgl; |
| } |
| |
| protected DragGestureRecognizer(DragSource ds, Component c, int sa) |
| { |
| this(ds, c, sa, null); |
| } |
| |
| protected DragGestureRecognizer(DragSource ds, Component c) |
| { |
| this(ds, c, 0, null); |
| } |
| |
| protected DragGestureRecognizer(DragSource ds) |
| { |
| this(ds, null, 0, null); |
| } |
| |
| protected abstract void registerListeners(); |
| |
| protected abstract void unregisterListeners(); |
| |
| public DragSource getDragSource() |
| { |
| return dragSource; |
| } |
| |
| public Component getComponent() |
| { |
| return component; |
| } |
| |
| public void setComponent(Component c) |
| { |
| component = c; |
| } |
| |
| public int getSourceActions() |
| { |
| return sourceActions; |
| } |
| |
| public void setSourceActions(int sa) |
| { |
| sourceActions = sa; |
| } |
| |
| public InputEvent getTriggerEvent() |
| { |
| return events.size() > 0 ? (InputEvent) events.get(0) : null; |
| } |
| |
| public void resetRecognizer() |
| { |
| throw new Error("not implemented"); |
| } |
| |
| /** |
| * Register a new DragGestureListener. |
| * |
| * @exception TooManyListenersException If a DragGestureListener has already |
| * been added. |
| */ |
| public void addDragGestureListener(DragGestureListener dgl) |
| throws TooManyListenersException |
| { |
| if (dragGestureListener != null) |
| throw new TooManyListenersException(); |
| dragGestureListener = dgl; |
| } |
| |
| public void removeDragGestureListener(DragGestureListener dgl) |
| { |
| if (dragGestureListener != dgl) |
| throw new IllegalArgumentException(); |
| dragGestureListener = null; |
| } |
| |
| protected void fireDragGestureRecognized(int dragAction, Point p) |
| { |
| throw new Error("not implemented"); |
| } |
| |
| protected void appendEvent(InputEvent e) |
| { |
| if (e == null) |
| return; |
| events.add(e); |
| } |
| |
| private void readObject(ObjectInputStream s) |
| throws ClassNotFoundException, IOException |
| { |
| s.defaultReadObject(); |
| dragGestureListener = (DragGestureListener) s.readObject(); |
| } |
| |
| private void writeObject(ObjectOutputStream s) throws IOException |
| { |
| s.defaultWriteObject(); |
| s.writeObject(dragGestureListener instanceof Serializable |
| ? dragGestureListener : null); |
| } |
| } // class DragGestureRecognizer |