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1 /* |
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2 * Copyright 2003-2006 Sun Microsystems, Inc. All Rights Reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Sun designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Sun in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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22 * CA 95054 USA or visit www.sun.com if you need additional information or |
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23 * have any questions. |
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24 */ |
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25 |
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26 package sun.awt.X11; |
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27 |
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28 import java.awt.Point; |
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29 import java.awt.Window; |
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30 import java.awt.GraphicsEnvironment; |
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31 import java.awt.GraphicsConfiguration; |
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32 import java.awt.GraphicsDevice; |
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33 import java.awt.peer.MouseInfoPeer; |
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34 |
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35 public class XMouseInfoPeer implements MouseInfoPeer { |
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36 |
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37 /** |
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38 * Package-private constructor to prevent instantiation. |
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39 */ |
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40 XMouseInfoPeer() { |
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41 } |
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42 |
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43 public int fillPointWithCoords(Point point) { |
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44 long display = XToolkit.getDisplay(); |
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45 GraphicsEnvironment ge = GraphicsEnvironment. |
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46 getLocalGraphicsEnvironment(); |
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47 GraphicsDevice[] gds = ge.getScreenDevices(); |
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48 int gdslen = gds.length; |
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49 |
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50 XToolkit.awtLock(); |
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51 try { |
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52 for (int i = 0; i < gdslen; i++) { |
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53 long screenRoot = XlibWrapper.RootWindow(display, i); |
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54 boolean pointerFound = XlibWrapper.XQueryPointer( |
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55 display, screenRoot, |
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56 XlibWrapper.larg1, // root_return |
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57 XlibWrapper.larg2, // child_return |
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58 XlibWrapper.larg3, // xr_return |
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59 XlibWrapper.larg4, // yr_return |
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60 XlibWrapper.larg5, // xw_return |
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61 XlibWrapper.larg6, // yw_return |
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62 XlibWrapper.larg7); // mask_return |
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63 if (pointerFound) { |
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64 point.x = Native.getInt(XlibWrapper.larg3); |
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65 point.y = Native.getInt(XlibWrapper.larg4); |
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66 return i; |
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67 } |
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68 } |
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69 } finally { |
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70 XToolkit.awtUnlock(); |
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71 } |
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72 |
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73 // this should never happen |
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74 assert false : "No pointer found in the system."; |
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75 return 0; |
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76 } |
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77 |
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78 public boolean isWindowUnderMouse(Window w) { |
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79 |
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80 long display = XToolkit.getDisplay(); |
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81 |
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82 // java.awt.Component.findUnderMouseInWindow checks that |
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83 // the peer is non-null by checking that the component |
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84 // is showing. |
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85 |
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86 long contentWindow = ((XWindow)w.getPeer()).getContentWindow(); |
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87 long parent = XlibUtil.getParentWindow(contentWindow); |
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88 |
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89 XToolkit.awtLock(); |
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90 try |
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91 { |
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92 boolean windowOnTheSameScreen = XlibWrapper.XQueryPointer(display, parent, |
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93 XlibWrapper.larg1, // root_return |
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94 XlibWrapper.larg8, // child_return |
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95 XlibWrapper.larg3, // root_x_return |
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96 XlibWrapper.larg4, // root_y_return |
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97 XlibWrapper.larg5, // win_x_return |
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98 XlibWrapper.larg6, // win_y_return |
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99 XlibWrapper.larg7); // mask_return |
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100 long siblingWindow = Native.getWindow(XlibWrapper.larg8); |
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101 return (siblingWindow == contentWindow && windowOnTheSameScreen); |
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102 } |
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103 finally |
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104 { |
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105 XToolkit.awtUnlock(); |
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106 } |
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107 } |
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108 } |