| /* DragSourceContext.java -- |
| Copyright (C) 2002 Free Software Foundation |
| |
| 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.Cursor; |
| import java.awt.Image; |
| import java.awt.Point; |
| import java.awt.datatransfer.Transferable; |
| import java.awt.dnd.peer.DragSourceContextPeer; |
| import java.io.Serializable; |
| import java.util.TooManyListenersException; |
| |
| /** |
| * @since 1.2 |
| */ |
| public class DragSourceContext |
| implements DragSourceListener, DragSourceMotionListener, Serializable |
| { |
| /** |
| * Compatible with JDK 1.2+ |
| */ |
| static final long serialVersionUID = -115407898692194719L; |
| |
| protected static final int DEFAULT = 0; |
| protected static final int ENTER = 1; |
| protected static final int OVER = 2; |
| protected static final int CHANGED = 3; |
| |
| private DragSourceContextPeer peer; |
| private Cursor cursor; |
| private Transferable transferable; |
| private DragGestureEvent trigger; |
| private DragSourceListener dragSourceListener; |
| private boolean useCustomCursor; // FIXME: currently unused but needed for serialization. |
| private int sourceActions; // FIXME: currently unused but needed for serialization. |
| private Image image; |
| private Point offset; |
| |
| /** |
| * Initializes a drag source context. |
| * |
| * @exception IllegalArgumentException If Component or DragSource of trigger |
| * are null, the drag action for the trigger event is DnDConstants.ACTION_NONE |
| * or if the source actions for the DragGestureRecognizer associated with the |
| * trigger event are equal to DnDConstants.ACTION_NONE. |
| * @exception NullPointerException If peer or trigger is null. |
| */ |
| public DragSourceContext (DragSourceContextPeer peer, |
| DragGestureEvent trigger, Cursor cursor, |
| Image image, Point offset, Transferable trans, |
| DragSourceListener dsl) |
| { |
| if (peer == null |
| || trigger == null) |
| throw new NullPointerException (); |
| |
| if (trigger.getComponent () == null |
| || trigger.getDragSource () == null |
| || trigger.getDragAction () == DnDConstants.ACTION_NONE |
| || trigger.getSourceAsDragGestureRecognizer () |
| .getSourceActions () == DnDConstants.ACTION_NONE) |
| throw new IllegalArgumentException (); |
| |
| this.peer = peer; |
| this.trigger = trigger; |
| this.cursor = cursor; |
| this.image = image; |
| this.offset = offset; |
| this.transferable = trans; |
| this.dragSourceListener = dsl; |
| |
| throw new Error ("not implemented"); |
| } |
| |
| public DragSource getDragSource() |
| { |
| return trigger.getDragSource (); |
| } |
| |
| public Component getComponent() |
| { |
| return trigger.getComponent (); |
| } |
| |
| public DragGestureEvent getTrigger() |
| { |
| return trigger; |
| } |
| |
| public int getSourceActions() |
| { |
| return trigger.getSourceAsDragGestureRecognizer ().getSourceActions (); |
| } |
| |
| public void setCursor (Cursor cursor) |
| { |
| this.cursor = cursor; |
| // FIXME: Check if we need to do more here |
| } |
| |
| public Cursor getCursor() |
| { |
| return cursor; |
| } |
| |
| /** |
| * Adds a <code>DragSourceListener</code>. |
| * |
| * @exception TooManyListenersException If a <code>DragSourceListener</code> |
| * has already been added. |
| */ |
| public void addDragSourceListener (DragSourceListener dsl) |
| throws TooManyListenersException |
| { |
| if (dragSourceListener != null) |
| throw new TooManyListenersException (); |
| |
| dragSourceListener = dsl; |
| } |
| |
| public void removeDragSourceListener (DragSourceListener dsl) |
| { |
| if (dragSourceListener == dsl) |
| dragSourceListener = null; |
| } |
| |
| public void transferablesFlavorsChanged() |
| { |
| } |
| |
| public void dragEnter(DragSourceDragEvent e) |
| { |
| } |
| |
| public void dragOver(DragSourceDragEvent e) |
| { |
| } |
| |
| public void dragExit(DragSourceEvent e) |
| { |
| } |
| |
| public void dropActionChanged(DragSourceDragEvent e) |
| { |
| } |
| |
| public void dragDropEnd(DragSourceDropEvent e) |
| { |
| } |
| |
| public void dragMouseMoved(DragSourceDragEvent e) |
| { |
| } |
| |
| public Transferable getTransferable() |
| { |
| return transferable; |
| } |
| |
| protected void updateCurrentCursor(int dropOp, int targetAct, int status) |
| { |
| } |
| } // class DragSourceContext |