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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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,
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package sun.awt.X11;

import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Point;
import java.awt.Window;
import java.awt.peer.MouseInfoPeer;

import sun.awt.AWTAccessor;
import sun.awt.X11GraphicsDevice;

public final class XMouseInfoPeer implements MouseInfoPeer {

    
Package-private constructor to prevent instantiation.
/** * 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); GraphicsDevice device = gds[i]; if (device instanceof X11GraphicsDevice) { int scale = ((X11GraphicsDevice) device).getScaleFactor(); point.x = XlibUtil.scaleDown(point.x, scale); point.y = XlibUtil.scaleDown(point.y, scale); } return i; } } } finally { XToolkit.awtUnlock(); } // this should never happen assert false : "No pointer found in the system."; return 0; } @SuppressWarnings("deprecation") public boolean isWindowUnderMouse(Window w) { if (w == null) { return false; } XWindow peer = AWTAccessor.getComponentAccessor().getPeer(w); if (peer == null) { return false; } long display = XToolkit.getDisplay(); long contentWindow = peer.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(); } } }