| /* GtkDragSourceContextPeer.java -- |
| Copyright (C) 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 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 gnu.java.awt.dnd.peer.gtk; |
| |
| import gnu.java.awt.peer.gtk.GtkGenericPeer; |
| |
| import java.awt.Component; |
| import java.awt.Cursor; |
| import java.awt.Image; |
| import java.awt.Point; |
| import java.awt.dnd.DragGestureEvent; |
| import java.awt.dnd.DragSourceContext; |
| import java.awt.dnd.DragSourceDragEvent; |
| import java.awt.dnd.DragSourceDropEvent; |
| import java.awt.dnd.DragSourceEvent; |
| import java.awt.dnd.InvalidDnDOperationException; |
| import java.awt.dnd.peer.DragSourceContextPeer; |
| import java.awt.peer.ComponentPeer; |
| import java.awt.peer.LightweightPeer; |
| |
| public class GtkDragSourceContextPeer |
| extends GtkGenericPeer |
| implements DragSourceContextPeer |
| { |
| private ComponentPeer peer; |
| private Cursor cursor; |
| private DragSourceContext context; |
| |
| native void nativeStartDrag(Image i, int x, int y, int action, String target); |
| native void connectSignals(ComponentPeer comp); |
| native void create(ComponentPeer comp); |
| native void nativeSetCursor(int cursor); |
| |
| public GtkDragSourceContextPeer(DragGestureEvent e) |
| { |
| super(e.getComponent()); |
| Component comp = e.getComponent(); |
| peer = getComponentPeer(comp); |
| |
| create(peer); |
| connectSignals(peer); |
| cursor = comp.getCursor(); |
| } |
| |
| ComponentPeer getComponentPeer(Component c) |
| { |
| Component curr = c; |
| while (curr.getPeer() instanceof LightweightPeer) |
| curr = curr.getParent(); |
| |
| if (curr != null) |
| return curr.getPeer(); |
| return null; |
| } |
| |
| public void startDrag(DragSourceContext context, Cursor c, Image i, Point p) |
| throws InvalidDnDOperationException |
| { |
| this.context = context; |
| |
| if (p == null) |
| p = new Point(); |
| |
| // FIXME: use proper DataFlavor, not "text/plain". |
| // Also, add check to determine if dragging. |
| |
| setCursor(c); |
| nativeStartDrag(i, p.x, p.y, context.getTrigger().getDragAction(), |
| "text/plain"); |
| } |
| |
| public Cursor getCursor() |
| { |
| return cursor; |
| } |
| |
| public void setCursor(Cursor c) throws InvalidDnDOperationException |
| { |
| if (c != null) |
| { |
| nativeSetCursor(c.getType()); |
| cursor = c; |
| } |
| } |
| |
| public void transferablesFlavorsChanged() |
| { |
| // Nothing to do here. |
| } |
| |
| /** |
| * Called from native code. |
| */ |
| |
| public void dragEnter(int action, int modifiers) |
| { |
| context.dragEnter(new DragSourceDragEvent(context, action, |
| action |
| & context.getSourceActions(), |
| modifiers)); |
| } |
| |
| public void dragExit(int action, int x, int y) |
| { |
| context.dragExit(new DragSourceEvent(context, x, y)); |
| } |
| |
| public void dragDropEnd(int action, boolean success, int x, int y) |
| { |
| context.dragDropEnd(new DragSourceDropEvent(context, action, success, x, y)); |
| } |
| |
| public void dragMouseMoved(int action, int modifiers) |
| { |
| context.dragMouseMoved(new DragSourceDragEvent(context, |
| action, |
| action |
| & context.getSourceActions(), |
| modifiers)); |
| } |
| |
| public void dragOver(int action, int modifiers) |
| { |
| context.dragOver(new DragSourceDragEvent(context, action, |
| action |
| & context.getSourceActions(), |
| modifiers)); |
| } |
| |
| public void dragActionChanged(int newAction, int modifiers) |
| { |
| context.dropActionChanged(new DragSourceDragEvent(context, |
| newAction, |
| newAction |
| & context.getSourceActions(), |
| modifiers)); |
| } |
| } |