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
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011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
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014: * License. When distributing the software, include this License Header
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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
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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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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.MoveControlPointProvider;
044: import org.netbeans.api.visual.action.WidgetAction;
045: import org.netbeans.api.visual.widget.ConnectionWidget;
046: import org.netbeans.api.visual.widget.Widget;
047:
048: import java.awt.*;
049: import java.awt.event.MouseEvent;
050:
051: /**
052: * @author David Kaspar
053: */
054: public final class MoveControlPointAction extends
055: WidgetAction.LockedAdapter {
056:
057: private MoveControlPointProvider provider;
058: private ConnectionWidget.RoutingPolicy routingPolicy;
059:
060: private ConnectionWidget movingWidget = null;
061: private Point controlPointLocation;
062: private int controlPointIndex;
063: private Point lastLocation = null;
064:
065: public MoveControlPointAction(MoveControlPointProvider provider,
066: ConnectionWidget.RoutingPolicy routingPolicy) {
067: this .provider = provider;
068: this .routingPolicy = routingPolicy;
069: }
070:
071: protected boolean isLocked() {
072: return movingWidget != null;
073: }
074:
075: public State mousePressed(Widget widget, WidgetMouseEvent event) {
076: if (isLocked())
077: return State.createLocked(widget, this );
078: if (event.getButton() == MouseEvent.BUTTON1
079: && event.getClickCount() == 1) {
080: if (widget instanceof ConnectionWidget) {
081: ConnectionWidget conn = (ConnectionWidget) widget;
082: controlPointIndex = conn.getControlPointHitAt(event
083: .getPoint());
084: if (controlPointIndex >= 0) {
085: movingWidget = conn;
086: controlPointLocation = new Point(conn
087: .getControlPoints().get(controlPointIndex));
088: lastLocation = new Point(event.getPoint());
089: return State.createLocked(widget, this );
090: } else {
091: movingWidget = null;
092: }
093: }
094: }
095: return State.REJECTED;
096: }
097:
098: public State mouseReleased(Widget widget, WidgetMouseEvent event) {
099: State state = move(widget, event.getPoint());
100: if (state.isConsumed())
101: movingWidget = null;
102: return state;
103: }
104:
105: public State mouseDragged(Widget widget, WidgetMouseEvent event) {
106: return move(widget, event.getPoint());
107: }
108:
109: private State move(Widget widget, Point newLocation) {
110: if (movingWidget != widget)
111: return State.REJECTED;
112:
113: java.util.List<Point> controlPoints = movingWidget
114: .getControlPoints();
115: if (controlPointIndex < 0
116: || controlPointIndex >= controlPoints.size())
117: return State.REJECTED;
118:
119: Point location = new Point(controlPointLocation);
120: location.translate(newLocation.x - lastLocation.x,
121: newLocation.y - lastLocation.y);
122:
123: controlPoints = provider.locationSuggested(movingWidget,
124: controlPointIndex, location);
125: if (controlPoints == null)
126: return State.REJECTED;
127:
128: if (routingPolicy != null)
129: movingWidget.setRoutingPolicy(routingPolicy);
130: movingWidget.setControlPoints(controlPoints, false);
131: return State.createLocked(widget, this);
132: }
133:
134: }
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