01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * The contents of this file are subject to the terms of either the GNU
07: * General Public License Version 2 only ("GPL") or the Common
08: * Development and Distribution License("CDDL") (collectively, the
09: * "License"). You may not use this file except in compliance with the
10: * License. You can obtain a copy of the License at
11: * http://www.netbeans.org/cddl-gplv2.html
12: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
13: * specific language governing permissions and limitations under the
14: * License. When distributing the software, include this License Header
15: * Notice in each file and include the License file at
16: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
17: * particular file as subject to the "Classpath" exception as provided
18: * by Sun in the GPL Version 2 section of the License file that
19: * accompanied this code. If applicable, add the following below the
20: * License Header, with the fields enclosed by brackets [] replaced by
21: * your own identifying information:
22: * "Portions Copyrighted [year] [name of copyright owner]"
23: *
24: * Contributor(s):
25: *
26: * The Original Software is NetBeans. The Initial Developer of the Original
27: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
28: * Microsystems, Inc. All Rights Reserved.
29: *
30: * If you wish your version of this file to be governed by only the CDDL
31: * or only the GPL Version 2, indicate your decision by adding
32: * "[Contributor] elects to include this software in this distribution
33: * under the [CDDL or GPL Version 2] license." If you do not indicate a
34: * single choice of license, a recipient has the option to distribute
35: * your version of this file under either the CDDL, the GPL Version 2 or
36: * to extend the choice of license to its licensees as provided above.
37: * However, if you add GPL Version 2 code and therefore, elected the GPL
38: * Version 2 license, then the option applies only if the new code is
39: * made subject to such option by the copyright holder.
40: */
41: package org.netbeans.modules.visual.action;
42:
43: import org.netbeans.api.visual.widget.Scene;
44: import org.netbeans.api.visual.widget.Widget;
45: import org.netbeans.api.visual.action.WidgetAction;
46: import org.netbeans.api.visual.action.TwoStateHoverProvider;
47:
48: /**
49: * @author David Kaspar
50: */
51: public final class TwoStatedMouseHoverAction extends
52: WidgetAction.Adapter {
53:
54: private long eventID = Integer.MIN_VALUE;
55: private TwoStateHoverProvider provider;
56: private Widget lastWidget;
57:
58: public TwoStatedMouseHoverAction(TwoStateHoverProvider provider) {
59: this .provider = provider;
60: }
61:
62: public State mouseMoved(Widget widget, WidgetMouseEvent event) {
63: long id = event.getEventID();
64: if (id != eventID) {
65: eventID = id;
66: widgetHovered(widget);
67: }
68: return State.REJECTED;
69: }
70:
71: public State mouseExited(Widget widget, WidgetMouseEvent event) {
72: long id = event.getEventID();
73: if (id != eventID) {
74: eventID = id;
75: widgetHovered(null);
76: }
77: return State.REJECTED;
78: }
79:
80: public void widgetHovered(Widget widget) {
81: if (widget instanceof Scene)
82: widget = null;
83:
84: if (lastWidget == widget)
85: return;
86:
87: if (lastWidget != null)
88: provider.unsetHovering(lastWidget);
89:
90: lastWidget = widget;
91:
92: if (widget != null)
93: provider.setHovering(widget);
94: }
95:
96: }
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