1 /*
   2  * Copyright (c) 2003, 2020, 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.Rectangle;
  29 import java.awt.Toolkit;
  30 import java.awt.peer.RobotPeer;
  31 import java.security.AccessController;
  32 
  33 import sun.awt.AWTAccessor;
  34 import sun.awt.SunToolkit;
  35 import sun.awt.UNIXToolkit;
  36 import sun.awt.X11GraphicsConfig;
  37 import sun.awt.X11GraphicsDevice;
  38 import sun.security.action.GetPropertyAction;
  39 
  40 final class XRobotPeer implements RobotPeer {
  41 
  42     private static final boolean tryGtk;
  43     static {
  44         loadNativeLibraries();
  45         tryGtk = Boolean.parseBoolean(
  46                             AccessController.doPrivileged(
  47                                     new GetPropertyAction("awt.robot.gtk", "true")
  48                             ));
  49     }
  50     private static volatile boolean useGtk;
  51     private final X11GraphicsConfig  xgc;
  52 
  53     XRobotPeer(X11GraphicsDevice gd) {
  54         xgc = (X11GraphicsConfig) gd.getDefaultConfiguration();
  55         SunToolkit tk = (SunToolkit)Toolkit.getDefaultToolkit();
  56         setup(tk.getNumberOfButtons(),
  57                 AWTAccessor.getInputEventAccessor().getButtonDownMasks());
  58 
  59         boolean isGtkSupported = false;
  60         if (tryGtk) {
  61             if (tk instanceof UNIXToolkit && ((UNIXToolkit) tk).loadGTK()) {
  62                 isGtkSupported = true;
  63             }
  64         }
  65 
  66         useGtk = (tryGtk && isGtkSupported);
  67     }
  68 
  69     @Override
  70     public void mouseMove(int x, int y) {
  71         mouseMoveImpl(xgc, xgc.scaleUp(x), xgc.scaleUp(y));
  72     }
  73 
  74     @Override
  75     public void mousePress(int buttons) {
  76         mousePressImpl(buttons);
  77     }
  78 
  79     @Override
  80     public void mouseRelease(int buttons) {
  81         mouseReleaseImpl(buttons);
  82     }
  83 
  84     @Override
  85     public void mouseWheel(int wheelAmt) {
  86         mouseWheelImpl(wheelAmt);
  87     }
  88 
  89     @Override
  90     public void keyPress(int keycode) {
  91         keyPressImpl(keycode);
  92     }
  93 
  94     @Override
  95     public void keyRelease(int keycode) {
  96         keyReleaseImpl(keycode);
  97     }
  98 
  99     @Override
 100     public int getRGBPixel(int x, int y) {
 101         int[] pixelArray = new int[1];
 102         getRGBPixelsImpl(xgc, x, y, 1, 1, pixelArray, useGtk);
 103         return pixelArray[0];
 104     }
 105 
 106     @Override
 107     public int [] getRGBPixels(Rectangle bounds) {
 108         int[] pixelArray = new int[bounds.width*bounds.height];
 109         getRGBPixelsImpl(xgc, bounds.x, bounds.y, bounds.width, bounds.height,
 110                             pixelArray, useGtk);
 111         return pixelArray;
 112     }
 113 
 114     private static synchronized native void setup(int numberOfButtons, int[] buttonDownMasks);
 115     private static native void loadNativeLibraries();
 116 
 117     private static synchronized native void mouseMoveImpl(X11GraphicsConfig xgc, int x, int y);
 118     private static synchronized native void mousePressImpl(int buttons);
 119     private static synchronized native void mouseReleaseImpl(int buttons);
 120     private static synchronized native void mouseWheelImpl(int wheelAmt);
 121 
 122     private static synchronized native void keyPressImpl(int keycode);
 123     private static synchronized native void keyReleaseImpl(int keycode);
 124 
 125     private static synchronized native void getRGBPixelsImpl(X11GraphicsConfig xgc,
 126             int x, int y, int width, int height, int[] pixelArray, boolean isGtkSupported);
 127 }