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