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 
  30 import sun.awt.AWTAccessor;
  31 import sun.awt.SunToolkit;
  32 import sun.awt.UNIXToolkit;
  33 import sun.awt.X11GraphicsConfig;
  34 
  35 class XRobotPeer implements RobotPeer {
  36 
  37     private static volatile boolean isGtkSupported;
  38     private X11GraphicsConfig   xgc = null;
  39     /*
  40      * native implementation uses some static shared data (pipes, processes)
  41      * so use a class lock to synchronize native method calls
  42      */
  43     static Object robotLock = new Object();
  44 
  45     XRobotPeer(GraphicsConfiguration gc) {
  46         this.xgc = (X11GraphicsConfig)gc;
  47         SunToolkit tk = (SunToolkit)Toolkit.getDefaultToolkit();
  48         setup(tk.getNumberOfButtons(),
  49                 AWTAccessor.getInputEventAccessor().getButtonDownMasks());
  50 
  51         Toolkit toolkit = Toolkit.getDefaultToolkit();
  52         if (!isGtkSupported) {
  53             if (toolkit instanceof UNIXToolkit
  54                     && ((UNIXToolkit) toolkit).loadGTK()) {
  55                 isGtkSupported = true;
  56             }
  57         }
  58     }
  59 
  60     @Override
  61     public void dispose() {
  62         // does nothing
  63     }
  64 
  65     @Override
  66     public void mouseMove(int x, int y) {
  67         mouseMoveImpl(xgc, xgc.scaleUp(x), xgc.scaleUp(y));
  68     }
  69 
  70     @Override
  71     public void mousePress(int buttons) {
  72         mousePressImpl(buttons);
  73     }
  74 
  75     @Override
  76     public void mouseRelease(int buttons) {
  77         mouseReleaseImpl(buttons);
  78     }
  79 
  80     @Override
  81     public void mouseWheel(int wheelAmt) {
  82         mouseWheelImpl(wheelAmt);
  83     }
  84 
  85     @Override
  86     public void keyPress(int keycode) {
  87         keyPressImpl(keycode);
  88     }
  89 
  90     @Override
  91     public void keyRelease(int keycode) {
  92         keyReleaseImpl(keycode);
  93     }
  94 
  95     @Override
  96     public int getRGBPixel(int x, int y) {
  97         int pixelArray[] = new int[1];
  98         getRGBPixelsImpl(xgc, x, y, 1, 1, xgc.getScale(), pixelArray,
  99                          isGtkSupported);
 100         return pixelArray[0];
 101     }
 102 
 103     @Override
 104     public int [] getRGBPixels(Rectangle bounds) {
 105         int pixelArray[] = new int[bounds.width*bounds.height];
 106         getRGBPixelsImpl(xgc, bounds.x, bounds.y, bounds.width, bounds.height,
 107                          xgc.getScale(), pixelArray, isGtkSupported);
 108         return pixelArray;
 109     }
 110 
 111     private static synchronized native void setup(int numberOfButtons, int[] buttonDownMasks);
 112 
 113     private static synchronized native void mouseMoveImpl(X11GraphicsConfig xgc, int x, int y);
 114     private static synchronized native void mousePressImpl(int buttons);
 115     private static synchronized native void mouseReleaseImpl(int buttons);
 116     private static synchronized native void mouseWheelImpl(int wheelAmt);
 117 
 118     private static synchronized native void keyPressImpl(int keycode);
 119     private static synchronized native void keyReleaseImpl(int keycode);
 120 
 121     private static synchronized native void getRGBPixelsImpl(X11GraphicsConfig xgc,
 122             int x, int y, int width, int height, int scale,
 123             int pixelArray[], boolean isGtkSupported);
 124 }