1 /*
   2  * Copyright (c) 2003, 2015, 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 package sun.awt.X11;
  26 
  27 import java.awt.*;
  28 import java.awt.peer.*;
  29 import java.security.AccessController;
  30 import sun.security.action.GetPropertyAction;
  31 
  32 import sun.awt.AWTAccessor;
  33 import sun.awt.SunToolkit;
  34 import sun.awt.UNIXToolkit;
  35 import sun.awt.X11GraphicsConfig;
  36 import sun.awt.X11GraphicsEnvironment;
  37 
  38 class XRobotPeer implements RobotPeer {
  39 
  40     static final boolean tryGtk;
  41     static {
  42         loadNativeLibraries();
  43         tryGtk = Boolean.parseBoolean(
  44                             AccessController.doPrivileged(
  45                                     new GetPropertyAction("awt.robot.gtk", "true")
  46                             ));
  47     }
  48     private static volatile boolean useGtk;
  49     private X11GraphicsConfig   xgc = null;
  50 
  51     /*
  52      * native implementation uses some static shared data (pipes, processes)
  53      * so use a class lock to synchronize native method calls
  54      */
  55     static Object robotLock = new Object();
  56 
  57     XRobotPeer(GraphicsConfiguration gc) {
  58         this.xgc = (X11GraphicsConfig)gc;
  59         SunToolkit tk = (SunToolkit)Toolkit.getDefaultToolkit();
  60         setup(tk.getNumberOfButtons(),
  61                 AWTAccessor.getInputEventAccessor().getButtonDownMasks());
  62 
  63         boolean isGtkSupported = false;
  64         if (tryGtk) {
  65             if (tk instanceof UNIXToolkit && ((UNIXToolkit) tk).loadGTK()) {
  66                 isGtkSupported = true;
  67             }
  68         }
  69 
  70         useGtk = (tryGtk && isGtkSupported);
  71     }
  72 
  73     @Override
  74     public void dispose() {
  75         // does nothing
  76     }
  77 
  78     @Override
  79     public void mouseMove(int x, int y) {
  80         X11GraphicsEnvironment x11ge = (X11GraphicsEnvironment)
  81                 GraphicsEnvironment.getLocalGraphicsEnvironment();
  82         if(x11ge.runningXinerama()) {
  83             Rectangle sb = xgc.getBounds();
  84             mouseMoveImpl(xgc, xgc.scaleUp(x + sb.x), xgc.scaleUp(y + sb.y));
  85         } else {
  86             mouseMoveImpl(xgc, xgc.scaleUp(x), xgc.scaleUp(y));
  87         }
  88     }
  89 
  90     @Override
  91     public void mousePress(int buttons) {
  92         mousePressImpl(buttons);
  93     }
  94 
  95     @Override
  96     public void mouseRelease(int buttons) {
  97         mouseReleaseImpl(buttons);
  98     }
  99 
 100     @Override
 101     public void mouseWheel(int wheelAmt) {
 102         mouseWheelImpl(wheelAmt);
 103     }
 104 
 105     @Override
 106     public void keyPress(int keycode) {
 107         keyPressImpl(keycode);
 108     }
 109 
 110     @Override
 111     public void keyRelease(int keycode) {
 112         keyReleaseImpl(keycode);
 113     }
 114 
 115     @Override
 116     public int getRGBPixel(int x, int y) {
 117         int pixelArray[] = new int[1];
 118         getRGBPixelsImpl(xgc, x, y, 1, 1, xgc.getScale(), pixelArray,
 119                          useGtk);
 120         return pixelArray[0];
 121     }
 122 
 123     @Override
 124     public int [] getRGBPixels(Rectangle bounds) {
 125         int pixelArray[] = new int[bounds.width*bounds.height];
 126         getRGBPixelsImpl(xgc, bounds.x, bounds.y, bounds.width, bounds.height,
 127                          xgc.getScale(), pixelArray, useGtk);
 128         return pixelArray;
 129     }
 130 
 131     private static synchronized native void setup(int numberOfButtons, int[] buttonDownMasks);
 132     private static native void loadNativeLibraries();
 133 
 134     private static synchronized native void mouseMoveImpl(X11GraphicsConfig xgc, int x, int y);
 135     private static synchronized native void mousePressImpl(int buttons);
 136     private static synchronized native void mouseReleaseImpl(int buttons);
 137     private static synchronized native void mouseWheelImpl(int wheelAmt);
 138 
 139     private static synchronized native void keyPressImpl(int keycode);
 140     private static synchronized native void keyReleaseImpl(int keycode);
 141 
 142     private static synchronized native void getRGBPixelsImpl(X11GraphicsConfig xgc,
 143             int x, int y, int width, int height, int scale,
 144             int pixelArray[], boolean isGtkSupported);
 145 }