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Java example source code file (XMouseInfoPeer.java)
The XMouseInfoPeer.java Java example source code/* * Copyright (c) 2003, 2006, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package sun.awt.X11; import java.awt.Point; import java.awt.Window; import java.awt.GraphicsEnvironment; import java.awt.GraphicsConfiguration; import java.awt.GraphicsDevice; import java.awt.peer.MouseInfoPeer; public class XMouseInfoPeer implements MouseInfoPeer { /** * Package-private constructor to prevent instantiation. */ XMouseInfoPeer() { } public int fillPointWithCoords(Point point) { long display = XToolkit.getDisplay(); GraphicsEnvironment ge = GraphicsEnvironment. getLocalGraphicsEnvironment(); GraphicsDevice[] gds = ge.getScreenDevices(); int gdslen = gds.length; XToolkit.awtLock(); try { for (int i = 0; i < gdslen; i++) { long screenRoot = XlibWrapper.RootWindow(display, i); boolean pointerFound = XlibWrapper.XQueryPointer( display, screenRoot, XlibWrapper.larg1, // root_return XlibWrapper.larg2, // child_return XlibWrapper.larg3, // xr_return XlibWrapper.larg4, // yr_return XlibWrapper.larg5, // xw_return XlibWrapper.larg6, // yw_return XlibWrapper.larg7); // mask_return if (pointerFound) { point.x = Native.getInt(XlibWrapper.larg3); point.y = Native.getInt(XlibWrapper.larg4); return i; } } } finally { XToolkit.awtUnlock(); } // this should never happen assert false : "No pointer found in the system."; return 0; } public boolean isWindowUnderMouse(Window w) { long display = XToolkit.getDisplay(); // java.awt.Component.findUnderMouseInWindow checks that // the peer is non-null by checking that the component // is showing. long contentWindow = ((XWindow)w.getPeer()).getContentWindow(); long parent = XlibUtil.getParentWindow(contentWindow); XToolkit.awtLock(); try { boolean windowOnTheSameScreen = XlibWrapper.XQueryPointer(display, parent, XlibWrapper.larg1, // root_return XlibWrapper.larg8, // child_return XlibWrapper.larg3, // root_x_return XlibWrapper.larg4, // root_y_return XlibWrapper.larg5, // win_x_return XlibWrapper.larg6, // win_y_return XlibWrapper.larg7); // mask_return long siblingWindow = Native.getWindow(XlibWrapper.larg8); return (siblingWindow == contentWindow && windowOnTheSameScreen); } finally { XToolkit.awtUnlock(); } } } Other Java examples (source code examples)Here is a short list of links related to this Java XMouseInfoPeer.java source code file: |
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