1 /* 2 * Copyright (c) 2003, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package java.awt.peer; 27 28 import java.awt.Window; 29 import java.awt.Point; 30 31 /** 32 * Peer interface for {@link MouseInfo}. This is used to get some additional 33 * information about the mouse. 34 * 35 * The peer interfaces are intended only for use in porting 36 * the AWT. They are not intended for use by application 37 * developers, and developers should not implement peers 38 * nor invoke any of the peer methods directly on the peer 39 * instances. 40 */ 41 public interface MouseInfoPeer { 42 43 /** 44 * This method does two things: it fills the point fields with 45 * the current coordinates of the mouse cursor and returns the 46 * number of the screen device where the pointer is located. 47 * The number of the screen device is only returned for independent 48 * devices (which are not parts of a virtual screen device). 49 * For virtual screen devices, 0 is returned. 50 * Mouse coordinates are also calculated depending on whether 51 * or not the screen device is virtual. For virtual screen 52 * devices, pointer coordinates are calculated in the virtual 53 * coordinate system. Otherwise, coordinates are calculated in 54 * the coordinate system of the screen device where the pointer 55 * is located. 56 * See java.awt.GraphicsConfiguration documentation for more 57 * details about virtual screen devices. 58 */ 59 int fillPointWithCoords(Point point); 60 61 /** 62 * Returns whether or not the window is located under the mouse 63 * pointer. The window is considered to be under the mouse pointer 64 * if it is showing on the screen, and the mouse pointer is above 65 * the part of the window that is not obscured by any other windows. 66 */ 67 boolean isWindowUnderMouse(Window w); 68 69 }