/* 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"); } 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