MouseOverAction.java revision 1472:c18cbe5936b8 
1/*
2 * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24package com.sun.hotspot.igv.view.actions;
25
26import org.netbeans.api.visual.action.HoverProvider;
27import org.netbeans.api.visual.action.WidgetAction;
28import org.netbeans.api.visual.action.WidgetAction.State;
29import org.netbeans.api.visual.widget.Widget;
30
31/**
32 *
33 * @author Thomas Wuerthinger
34 */
35public class MouseOverAction extends WidgetAction.Adapter {
36
37    private long eventID = Integer.MIN_VALUE;
38    private HoverProvider provider;
39
40    public MouseOverAction(HoverProvider provider) {
41        this.provider = provider;
42    }
43
44    @Override
45    public State mouseMoved(Widget widget, WidgetMouseEvent event) {
46        long id = event.getEventID();
47        if (id != eventID) {
48            eventID = id;
49            provider.widgetHovered(widget);
50        }
51        return State.REJECTED;
52    }
53
54    @Override
55    public State mouseExited(Widget widget, WidgetMouseEvent event) {
56        provider.widgetHovered(null);
57        return State.REJECTED;
58    }
59}
60