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src/java.desktop/unix/classes/sun/awt/X11/XRobotPeer.java

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rev 15059 : 8150954: Taking screenshots on x11 composite desktop produce wrong result
Summary: The AWT Robot X11 code that takes screenshots uses the default root window, which may not contain the final composited desktop.
Reviewed-by: alexsch, ssadetsky


  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     private static volatile boolean isGtkSupported;







  39     private X11GraphicsConfig   xgc = null;

  40     /*
  41      * native implementation uses some static shared data (pipes, processes)
  42      * so use a class lock to synchronize native method calls
  43      */
  44     static Object robotLock = new Object();
  45 
  46     XRobotPeer(GraphicsConfiguration gc) {
  47         this.xgc = (X11GraphicsConfig)gc;
  48         SunToolkit tk = (SunToolkit)Toolkit.getDefaultToolkit();
  49         setup(tk.getNumberOfButtons(),
  50                 AWTAccessor.getInputEventAccessor().getButtonDownMasks());
  51 
  52         Toolkit toolkit = Toolkit.getDefaultToolkit();
  53         if (!isGtkSupported) {
  54             if (toolkit instanceof UNIXToolkit
  55                     && ((UNIXToolkit) toolkit).loadGTK()) {
  56                 isGtkSupported = true;
  57             }
  58         }


  59     }
  60 
  61     @Override
  62     public void dispose() {
  63         // does nothing
  64     }
  65 
  66     @Override
  67     public void mouseMove(int x, int y) {
  68         X11GraphicsEnvironment x11ge = (X11GraphicsEnvironment)
  69                 GraphicsEnvironment.getLocalGraphicsEnvironment();
  70         if(x11ge.runningXinerama()) {
  71             Rectangle sb = xgc.getBounds();
  72             mouseMoveImpl(xgc, xgc.scaleUp(x + sb.x), xgc.scaleUp(y + sb.y));
  73         } else {
  74             mouseMoveImpl(xgc, xgc.scaleUp(x), xgc.scaleUp(y));
  75         }
  76     }
  77 
  78     @Override


  87 
  88     @Override
  89     public void mouseWheel(int wheelAmt) {
  90         mouseWheelImpl(wheelAmt);
  91     }
  92 
  93     @Override
  94     public void keyPress(int keycode) {
  95         keyPressImpl(keycode);
  96     }
  97 
  98     @Override
  99     public void keyRelease(int keycode) {
 100         keyReleaseImpl(keycode);
 101     }
 102 
 103     @Override
 104     public int getRGBPixel(int x, int y) {
 105         int pixelArray[] = new int[1];
 106         getRGBPixelsImpl(xgc, x, y, 1, 1, xgc.getScale(), pixelArray,
 107                          isGtkSupported);
 108         return pixelArray[0];
 109     }
 110 
 111     @Override
 112     public int [] getRGBPixels(Rectangle bounds) {
 113         int pixelArray[] = new int[bounds.width*bounds.height];
 114         getRGBPixelsImpl(xgc, bounds.x, bounds.y, bounds.width, bounds.height,
 115                          xgc.getScale(), pixelArray, isGtkSupported);
 116         return pixelArray;
 117     }
 118 
 119     private static synchronized native void setup(int numberOfButtons, int[] buttonDownMasks);

 120 
 121     private static synchronized native void mouseMoveImpl(X11GraphicsConfig xgc, int x, int y);
 122     private static synchronized native void mousePressImpl(int buttons);
 123     private static synchronized native void mouseReleaseImpl(int buttons);
 124     private static synchronized native void mouseWheelImpl(int wheelAmt);
 125 
 126     private static synchronized native void keyPressImpl(int keycode);
 127     private static synchronized native void keyReleaseImpl(int keycode);
 128 
 129     private static synchronized native void getRGBPixelsImpl(X11GraphicsConfig xgc,
 130             int x, int y, int width, int height, int scale,
 131             int pixelArray[], boolean isGtkSupported);
 132 }


  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 boolean isGtkSupported =  false;
  45     private static volatile boolean useGtk;
  46     private X11GraphicsConfig   xgc = null;
  47 
  48     /*
  49      * native implementation uses some static shared data (pipes, processes)
  50      * so use a class lock to synchronize native method calls
  51      */
  52     static Object robotLock = new Object();
  53 
  54     XRobotPeer(GraphicsConfiguration gc) {
  55         this.xgc = (X11GraphicsConfig)gc;
  56         SunToolkit tk = (SunToolkit)Toolkit.getDefaultToolkit();
  57         setup(tk.getNumberOfButtons(),
  58                 AWTAccessor.getInputEventAccessor().getButtonDownMasks());
  59 
  60         boolean isGtkSupported = false;
  61         if (tryGtk) {
  62             if (tk instanceof UNIXToolkit && ((UNIXToolkit) tk).loadGTK()) {

  63                 isGtkSupported = true;
  64             }
  65         }
  66 
  67         useGtk = (tryGtk && isGtkSupported);
  68     }
  69 
  70     @Override
  71     public void dispose() {
  72         // does nothing
  73     }
  74 
  75     @Override
  76     public void mouseMove(int x, int y) {
  77         X11GraphicsEnvironment x11ge = (X11GraphicsEnvironment)
  78                 GraphicsEnvironment.getLocalGraphicsEnvironment();
  79         if(x11ge.runningXinerama()) {
  80             Rectangle sb = xgc.getBounds();
  81             mouseMoveImpl(xgc, xgc.scaleUp(x + sb.x), xgc.scaleUp(y + sb.y));
  82         } else {
  83             mouseMoveImpl(xgc, xgc.scaleUp(x), xgc.scaleUp(y));
  84         }
  85     }
  86 
  87     @Override


  96 
  97     @Override
  98     public void mouseWheel(int wheelAmt) {
  99         mouseWheelImpl(wheelAmt);
 100     }
 101 
 102     @Override
 103     public void keyPress(int keycode) {
 104         keyPressImpl(keycode);
 105     }
 106 
 107     @Override
 108     public void keyRelease(int keycode) {
 109         keyReleaseImpl(keycode);
 110     }
 111 
 112     @Override
 113     public int getRGBPixel(int x, int y) {
 114         int pixelArray[] = new int[1];
 115         getRGBPixelsImpl(xgc, x, y, 1, 1, xgc.getScale(), pixelArray,
 116                          useGtk);
 117         return pixelArray[0];
 118     }
 119 
 120     @Override
 121     public int [] getRGBPixels(Rectangle bounds) {
 122         int pixelArray[] = new int[bounds.width*bounds.height];
 123         getRGBPixelsImpl(xgc, bounds.x, bounds.y, bounds.width, bounds.height,
 124                          xgc.getScale(), pixelArray, useGtk);
 125         return pixelArray;
 126     }
 127 
 128     private static synchronized native void setup(int numberOfButtons, int[] buttonDownMasks);
 129     private static native void loadNativeLibraries();
 130 
 131     private static synchronized native void mouseMoveImpl(X11GraphicsConfig xgc, int x, int y);
 132     private static synchronized native void mousePressImpl(int buttons);
 133     private static synchronized native void mouseReleaseImpl(int buttons);
 134     private static synchronized native void mouseWheelImpl(int wheelAmt);
 135 
 136     private static synchronized native void keyPressImpl(int keycode);
 137     private static synchronized native void keyReleaseImpl(int keycode);
 138 
 139     private static synchronized native void getRGBPixelsImpl(X11GraphicsConfig xgc,
 140             int x, int y, int width, int height, int scale,
 141             int pixelArray[], boolean isGtkSupported);
 142 }
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