Source Code Cross Referenced for MouseInfoPeer.java in  » 6.0-JDK-Core » AWT » java » awt » peer » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Core » AWT » java.awt.peer 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01        /*
02         * Copyright 2003 Sun Microsystems, Inc.  All Rights Reserved.
03         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04         *
05         * This code is free software; you can redistribute it and/or modify it
06         * under the terms of the GNU General Public License version 2 only, as
07         * published by the Free Software Foundation.  Sun designates this
08         * particular file as subject to the "Classpath" exception as provided
09         * by Sun in the LICENSE file that accompanied this code.
10         *
11         * This code is distributed in the hope that it will be useful, but WITHOUT
12         * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13         * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14         * version 2 for more details (a copy is included in the LICENSE file that
15         * accompanied this code).
16         *
17         * You should have received a copy of the GNU General Public License version
18         * 2 along with this work; if not, write to the Free Software Foundation,
19         * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20         *
21         * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22         * CA 95054 USA or visit www.sun.com if you need additional information or
23         * have any questions.
24         */
25
26        package java.awt.peer;
27
28        import java.awt.Window;
29        import java.awt.Point;
30
31        /**
32         * The peer interfaces are intended only for use in porting
33         * the AWT. They are not intended for use by application
34         * developers, and developers should not implement peers
35         * nor invoke any of the peer methods directly on the peer
36         * instances.
37         */
38        public interface MouseInfoPeer {
39
40            /**
41             * This method does two things: it fills the point fields with
42             * the current coordinates of the mouse cursor and returns the
43             * number of the screen device where the pointer is located.
44             * The number of the screen device is only returned for independent
45             * devices (which are not parts of a virtual screen device).
46             * For virtual screen devices, 0 is returned.
47             * Mouse coordinates are also calculated depending on whether
48             * or not the screen device is virtual. For virtual screen
49             * devices, pointer coordinates are calculated in the virtual
50             * coordinate system. Otherwise, coordinates are calculated in
51             * the coordinate system of the screen device where the pointer
52             * is located.
53             * See java.awt.GraphicsConfiguration documentation for more 
54             * details about virtual screen devices.
55             */
56            int fillPointWithCoords(Point point);
57
58            /**
59             * Returns whether or not the window is located under the mouse
60             * pointer. The window is considered to be under the mouse pointer
61             * if it is showing on the screen, and the mouse pointer is above
62             * the part of the window that is not obscured by any other windows.
63             */
64            boolean isWindowUnderMouse(Window w);
65
66        }
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