001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
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030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
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035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041: package org.netbeans.modules.visual.action;
042:
043: import org.netbeans.api.visual.action.AcceptProvider;
044: import org.netbeans.api.visual.action.ConnectorState;
045: import org.netbeans.api.visual.action.WidgetAction;
046: import org.netbeans.api.visual.widget.Widget;
047:
048: import java.awt.dnd.DnDConstants;
049:
050: /**
051: * @author David Kaspar
052: */
053: public final class AcceptAction extends WidgetAction.Adapter {
054:
055: private AcceptProvider provider;
056:
057: public AcceptAction(AcceptProvider provider) {
058: this .provider = provider;
059: }
060:
061: public State dragEnter(Widget widget,
062: WidgetDropTargetDragEvent event) {
063: ConnectorState acceptable = provider.isAcceptable(widget, event
064: .getPoint(), event.getTransferable());
065:
066: if (acceptable == ConnectorState.ACCEPT) {
067: event.acceptDrag(DnDConstants.ACTION_COPY_OR_MOVE);
068: return State.CONSUMED;
069: } else if (acceptable == ConnectorState.REJECT_AND_STOP) {
070: event.rejectDrag();
071: return State.CONSUMED;
072: }
073: return State.REJECTED;
074: }
075:
076: public State dragOver(Widget widget, WidgetDropTargetDragEvent event) {
077: ConnectorState acceptable = provider.isAcceptable(widget, event
078: .getPoint(), event.getTransferable());
079:
080: if (acceptable == ConnectorState.ACCEPT) {
081: event.acceptDrag(DnDConstants.ACTION_COPY_OR_MOVE);
082: return State.CONSUMED;
083: } else if (acceptable == ConnectorState.REJECT_AND_STOP) {
084: event.rejectDrag();
085: return State.CONSUMED;
086: }
087: return State.REJECTED;
088: }
089:
090: public State dropActionChanged(Widget widget,
091: WidgetDropTargetDragEvent event) {
092: ConnectorState acceptable = provider.isAcceptable(widget, event
093: .getPoint(), event.getTransferable());
094:
095: if (acceptable == ConnectorState.ACCEPT) {
096: event.acceptDrag(DnDConstants.ACTION_COPY_OR_MOVE);
097: return State.CONSUMED;
098: } else if (acceptable == ConnectorState.REJECT_AND_STOP) {
099: event.rejectDrag();
100: return State.CONSUMED;
101: }
102: return State.REJECTED;
103: }
104:
105: public State drop(Widget widget, WidgetDropTargetDropEvent event) {
106: ConnectorState acceptable = provider.isAcceptable(widget, event
107: .getPoint(), event.getTransferable());
108:
109: if (acceptable == ConnectorState.ACCEPT) {
110: event.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE);
111: provider.accept(widget, event.getPoint(), event
112: .getTransferable());
113: return State.CONSUMED;
114: } else if (acceptable == ConnectorState.REJECT_AND_STOP) {
115: event.rejectDrop();
116: return State.CONSUMED;
117: }
118: return State.REJECTED;
119: }
120:
121: }
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