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
028: * Microsystems, Inc. All Rights Reserved.
029: *
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:
042: package org.netbeans.modules.compapp.javaee.sunresources.actions;
043:
044: import java.awt.Point;
045: import java.awt.event.MouseEvent;
046:
047: import org.netbeans.api.visual.action.MoveProvider;
048: import org.netbeans.api.visual.action.MoveStrategy;
049: import org.netbeans.api.visual.action.WidgetAction;
050: import org.netbeans.api.visual.widget.Widget;
051:
052: import org.netbeans.modules.compapp.javaee.sunresources.tool.graph.JAXBHandler;
053:
054: /**
055: * @author echou
056: *
057: */
058: public final class WidgetMoveAction extends WidgetAction.LockedAdapter {
059:
060: private MoveStrategy strategy;
061: private MoveProvider provider;
062:
063: private Widget movingWidget = null;
064: private Point dragSceneLocation = null;
065: private Point originalSceneLocation = null;
066:
067: public WidgetMoveAction(JAXBHandler jaxbHandler) {
068: this .strategy = new MoveStrategy() {
069: public Point locationSuggested(Widget widget,
070: Point originalLocation, Point suggestedLocation) {
071: return suggestedLocation;
072: }
073: };
074: this .provider = new WidgetMoveProvider(jaxbHandler);
075: }
076:
077: protected boolean isLocked() {
078: return movingWidget != null;
079: }
080:
081: public State mousePressed(Widget widget, WidgetMouseEvent event) {
082: if (event.getButton() == MouseEvent.BUTTON1
083: && event.getClickCount() == 1) {
084: movingWidget = widget;
085: originalSceneLocation = widget.getPreferredLocation();
086: if (originalSceneLocation == null)
087: originalSceneLocation = new Point();
088: dragSceneLocation = widget.convertLocalToScene(event
089: .getPoint());
090: provider.movementStarted(widget);
091: return State.createLocked(widget, this );
092: }
093: return State.REJECTED;
094: }
095:
096: public State mouseReleased(Widget widget, WidgetMouseEvent event) {
097: boolean state = move(widget, event.getPoint());
098: if (state) {
099: movingWidget = null;
100: provider.movementFinished(widget);
101: }
102: return state ? State.CONSUMED : State.REJECTED;
103: }
104:
105: public State mouseDragged(Widget widget, WidgetMouseEvent event) {
106: return move(widget, event.getPoint()) ? State.createLocked(
107: widget, this ) : State.REJECTED;
108: }
109:
110: private boolean move(Widget widget, Point newLocation) {
111: if (movingWidget != widget)
112: return false;
113: newLocation = widget.convertLocalToScene(newLocation);
114: Point location = new Point(originalSceneLocation.x
115: + newLocation.x - dragSceneLocation.x,
116: originalSceneLocation.y + newLocation.y
117: - dragSceneLocation.y);
118: provider.setNewLocation(widget, strategy.locationSuggested(
119: widget, originalSceneLocation, location));
120: widget.getScene().repaint();
121: return true;
122: }
123:
124: }
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