1 /* 2 * Copyright (c) 2003, 2014, 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 sun.awt.X11; 27 28 import java.awt.Point; 29 import java.awt.Window; 30 import java.awt.GraphicsEnvironment; 31 import java.awt.GraphicsConfiguration; 32 import java.awt.GraphicsDevice; 33 import java.awt.peer.MouseInfoPeer; 34 35 public class XMouseInfoPeer implements MouseInfoPeer { 36 37 /** 38 * Package-private constructor to prevent instantiation. 39 */ 40 XMouseInfoPeer() { 41 } 42 43 public int fillPointWithCoords(Point point) { 44 long display = XToolkit.getDisplay(); 45 GraphicsEnvironment ge = GraphicsEnvironment. 46 getLocalGraphicsEnvironment(); 47 GraphicsDevice[] gds = ge.getScreenDevices(); 48 int gdslen = gds.length; 49 50 XToolkit.awtLock(); 51 try { 52 for (int i = 0; i < gdslen; i++) { 53 long screenRoot = XlibWrapper.RootWindow(display, i); 54 boolean pointerFound = XlibWrapper.XQueryPointer( 55 display, screenRoot, 56 XlibWrapper.larg1, // root_return 57 XlibWrapper.larg2, // child_return 58 XlibWrapper.larg3, // xr_return 59 XlibWrapper.larg4, // yr_return 60 XlibWrapper.larg5, // xw_return 61 XlibWrapper.larg6, // yw_return 62 XlibWrapper.larg7); // mask_return 63 if (pointerFound) { 64 point.x = Native.getInt(XlibWrapper.larg3); 65 point.y = Native.getInt(XlibWrapper.larg4); 66 return i; 67 } 68 } 69 } finally { 70 XToolkit.awtUnlock(); 71 } 72 73 // this should never happen 74 assert false : "No pointer found in the system."; 75 return 0; 76 } 77 78 @SuppressWarnings("deprecation") 79 public boolean isWindowUnderMouse(Window w) { 80 81 long display = XToolkit.getDisplay(); 82 83 // java.awt.Component.findUnderMouseInWindow checks that 84 // the peer is non-null by checking that the component 85 // is showing. 86 87 long contentWindow = ((XWindow)w.getPeer()).getContentWindow(); 88 long parent = XlibUtil.getParentWindow(contentWindow); 89 90 XToolkit.awtLock(); 91 try 92 { 93 boolean windowOnTheSameScreen = XlibWrapper.XQueryPointer(display, parent, 94 XlibWrapper.larg1, // root_return 95 XlibWrapper.larg8, // child_return 96 XlibWrapper.larg3, // root_x_return 97 XlibWrapper.larg4, // root_y_return 98 XlibWrapper.larg5, // win_x_return 99 XlibWrapper.larg6, // win_y_return 100 XlibWrapper.larg7); // mask_return 101 long siblingWindow = Native.getWindow(XlibWrapper.larg8); 102 return (siblingWindow == contentWindow && windowOnTheSameScreen); 103 } 104 finally 105 { 106 XToolkit.awtUnlock(); 107 } 108 } 109 }