Fix Bug 601: Harmonize order of key events incl. auto-repeat and adding AUTOREPEAT_MASK modifier bit. Refine InputEvent toString(..) and list modifiers by name.

As now described in NEWT's KeyEvent:
+/**
+ * Key events are delivered in the following order:
+ * <ol>
+ *   <li>{@link #EVENT_KEY_PRESSED}</li>
+ *   <li>{@link #EVENT_KEY_RELEASED}</li>
+ *   <li>{@link #EVENT_KEY_TYPED}</li>
+ * </ol>
+ * In case the native platform does not
+ * deliver keyboard events in the above order or skip events,
+ * the NEWT driver will reorder and inject synthetic events if required.
+ * <p>
+ * Besides regular modifiers like {@link InputEvent##SHIFT_MASK} etc.,
+ * the {@link InputEvent#AUTOREPEAT_MASK} bit is added if repetition is detected.
+ * </p>
+ */

11 files changed, 214 insertions, 38 deletions

diff --git a/src/newt/classes/com/jogamp/newt/Window.java b/src/newt/classes/com/jogamp/newt/Window.java
index e8537fec5..78e2abc6e 100644
--- a/src/newt/classes/com/jogamp/newt/Window.java
+++ b/src/newt/classes/com/jogamp/newt/Window.java
@@ -245,6 +245,7 @@ public interface Window extends NativeWindow, WindowClosingProtocol {
 
     String getTitle();
 
+    /** @see #setPointerVisible(boolean) */
     boolean isPointerVisible();
 
     /**
@@ -256,6 +257,7 @@ public interface Window extends NativeWindow, WindowClosingProtocol {
      */
     void setPointerVisible(boolean pointerVisible);
 
+    /** @see #confinePointer(boolean) */
     boolean isPointerConfined();
 
     /**
diff --git a/src/newt/classes/com/jogamp/newt/event/InputEvent.java b/src/newt/classes/com/jogamp/newt/event/InputEvent.java
index 819338ccb..148ac5962 100644
--- a/src/newt/classes/com/jogamp/newt/event/InputEvent.java
+++ b/src/newt/classes/com/jogamp/newt/event/InputEvent.java
@@ -34,22 +34,31 @@
 
 package com.jogamp.newt.event;
 
+import com.jogamp.newt.Window;
+
 @SuppressWarnings("serial")
 public abstract class InputEvent extends NEWTEvent
 {
- public static final int  SHIFT_MASK     = 1 <<  0;
- public static final int  CTRL_MASK      = 1 <<  1;
- public static final int  META_MASK      = 1 <<  2;
- public static final int  ALT_MASK       = 1 <<  3;
- public static final int  ALT_GRAPH_MASK = 1 <<  5;
- public static final int  BUTTON1_MASK   = 1 <<  6;
- public static final int  BUTTON2_MASK   = 1 <<  7;
- public static final int  BUTTON3_MASK   = 1 <<  8;
- public static final int  BUTTON4_MASK   = 1 <<  9;
- public static final int  BUTTON5_MASK   = 1 << 10;
- public static final int  BUTTON6_MASK   = 1 << 11;
- public static final int  CONFINED_MASK  = 1 << 16;
- public static final int  INVISIBLE_MASK = 1 << 17;
+ public static final int  SHIFT_MASK       = 1 <<  0;
+ public static final int  CTRL_MASK        = 1 <<  1;
+ public static final int  META_MASK        = 1 <<  2;
+ public static final int  ALT_MASK         = 1 <<  3;
+ public static final int  ALT_GRAPH_MASK   = 1 <<  5;
+ public static final int  BUTTON1_MASK     = 1 <<  6;
+ public static final int  BUTTON2_MASK     = 1 <<  7;
+ public static final int  BUTTON3_MASK     = 1 <<  8;
+ public static final int  BUTTON4_MASK     = 1 <<  9;
+ public static final int  BUTTON5_MASK     = 1 << 10;
+ public static final int  BUTTON6_MASK     = 1 << 11;
+ 
+ /** Event is caused by auto-repeat. */
+ public static final int  AUTOREPEAT_MASK  = 1 << 15;
+ 
+ /** Pointer is confined, see {@link Window#confinePointer(boolean)}. */
+ public static final int  CONFINED_MASK    = 1 << 16;
+ 
+ /** Pointer is invisible, see {@link Window#setPointerVisible(boolean)}. */
+ public static final int  INVISIBLE_MASK   = 1 << 17;
 
  /** 
   * Returns the corresponding button mask for the given button.
@@ -76,30 +85,64 @@ public abstract class InputEvent extends NEWTEvent
     this.modifiers=modifiers;
  }
 
+ /** Return the modifier bits of this event, e.g. see {@link #SHIFT_MASK} .. etc. */
  public int getModifiers() {
     return modifiers;
  }
+ /** {@link #getModifiers()} contains {@link #ALT_MASK}. */
  public boolean isAltDown() {
     return (modifiers&ALT_MASK)!=0;
  }
+ /** {@link #getModifiers()} contains {@link #ALT_GRAPH_MASK}. */
  public boolean isAltGraphDown() {
     return (modifiers&ALT_GRAPH_MASK)!=0;
  }
+ /** {@link #getModifiers()} contains {@link #CTRL_MASK}. */
  public boolean isControlDown() {
     return (modifiers&CTRL_MASK)!=0;
  }
+ /** {@link #getModifiers()} contains {@link #META_MASK}. */
  public boolean isMetaDown() {
     return (modifiers&META_MASK)!=0;
  }
+ /** {@link #getModifiers()} contains {@link #SHIFT_MASK}. */
  public boolean isShiftDown()  {
     return (modifiers&SHIFT_MASK)!=0;
  }
+ /** {@link #getModifiers()} contains {@link #AUTOREPEAT_MASK}. */
+ public boolean isAutoRepeat()  {
+    return (modifiers&AUTOREPEAT_MASK)!=0;
+ }
+ /** {@link #getModifiers()} contains {@link #CONFINED_MASK}. Pointer is confined, see {@link Window#confinePointer(boolean)}. */
  public boolean isConfined()  {
     return (modifiers&CONFINED_MASK)!=0;
  }
+ /** {@link #getModifiers()} contains {@link #INVISIBLE_MASK}. Pointer is invisible, see {@link Window#setPointerVisible(boolean)}. */ 
  public boolean isInvisible()  {
     return (modifiers&INVISIBLE_MASK)!=0;
  }
+ 
+ public StringBuilder getModifiersString(StringBuilder sb) {
+    if(null == sb) {
+        sb = new StringBuilder();
+    }
+    sb.append("[");
+    boolean isFirst = true;
+    if(isShiftDown()) { if(!isFirst) { sb.append(", "); } isFirst = false; sb.append("shift"); }
+    if(isControlDown()) { if(!isFirst) { sb.append(", "); } isFirst = false; sb.append("ctrl"); }
+    if(isMetaDown()) { if(!isFirst) { sb.append(", "); } isFirst = false; sb.append("meta"); }    
+    if(isAltDown()) { if(!isFirst) { sb.append(", "); } isFirst = false; sb.append("alt"); }
+    if(isAltGraphDown()) { if(!isFirst) { sb.append(", "); } isFirst = false; sb.append("altg"); }
+    if(isAutoRepeat()) { if(!isFirst) { sb.append(", "); } isFirst = false; sb.append("repeat"); }
+    for(int i=1; i<=MouseEvent.BUTTON_NUMBER; i++) {
+        if(isButtonDown(i)) { if(!isFirst) { sb.append(", "); } isFirst = false; sb.append("button").append(i); }
+    }
+    if(isConfined()) { if(!isFirst) { sb.append(", "); } isFirst = false; sb.append("confined"); }
+    if(isInvisible()) { if(!isFirst) { sb.append(", "); } isFirst = false; sb.append("invisible"); }
+    sb.append("]");
+    
+    return sb;
+ }
 
  /**
   * @return Array of pressed mouse buttons  [{@link MouseEvent#BUTTON1} .. {@link MouseEvent#BUTTON6}]. 
@@ -124,7 +167,18 @@ public abstract class InputEvent extends NEWTEvent
  }
  
  public String toString() {
-     return "InputEvent[modifiers: 0x"+Integer.toHexString(modifiers)+", "+super.toString()+"]";
+     return toString(null).toString();
+ }
+ 
+ public StringBuilder toString(StringBuilder sb) {
+     if(null == sb) {
+         sb = new StringBuilder();
+     }
+     sb.append("InputEvent[modifiers: ");
+     getModifiersString(sb);
+     sb.append(", ");
+     super.toString(sb).append("]");
+     return sb;
  }
 
  private final int modifiers;
diff --git a/src/newt/classes/com/jogamp/newt/event/KeyEvent.java b/src/newt/classes/com/jogamp/newt/event/KeyEvent.java
index 4db661eeb..bd48981da 100644
--- a/src/newt/classes/com/jogamp/newt/event/KeyEvent.java
+++ b/src/newt/classes/com/jogamp/newt/event/KeyEvent.java
@@ -34,6 +34,21 @@
 
 package com.jogamp.newt.event;
 
+/**
+ * Key events are delivered in the following order:
+ * <ol>
+ *   <li>{@link #EVENT_KEY_PRESSED}</li>
+ *   <li>{@link #EVENT_KEY_RELEASED}</li>
+ *   <li>{@link #EVENT_KEY_TYPED}</li>
+ * </ol>
+ * In case the native platform does not
+ * deliver keyboard events in the above order or skip events, 
+ * the NEWT driver will reorder and inject synthetic events if required. 
+ * <p>
+ * Besides regular modifiers like {@link InputEvent##SHIFT_MASK} etc., 
+ * the {@link InputEvent#AUTOREPEAT_MASK} bit is added if repetition is detected.
+ * </p>
+ */
 @SuppressWarnings("serial")
 public class KeyEvent extends InputEvent
 {
@@ -54,8 +69,15 @@ public class KeyEvent extends InputEvent
  }
 
  public String toString() {
-    return "KeyEvent["+getEventTypeString(getEventType())+
-                     ", code "+keyCode+"("+toHexString(keyCode)+"), char '"+keyChar+"' ("+toHexString((int)keyChar)+"), isActionKey "+isActionKey()+", "+super.toString()+"]";
+     return toString(null).toString();
+ }
+ 
+ public StringBuilder toString(StringBuilder sb) {
+     if(null == sb) {
+         sb = new StringBuilder();
+     }
+     sb.append("KeyEvent[").append(getEventTypeString(getEventType())).append(", code ").append(keyCode).append("(").append(toHexString(keyCode)).append("), char '").append(keyChar).append("' (").append(toHexString((int)keyChar)).append("), isActionKey ").append(isActionKey()).append(", ");
+     return super.toString(sb).append("]");
  }
 
  public static String getEventTypeString(int type) {
diff --git a/src/newt/classes/com/jogamp/newt/event/MouseEvent.java b/src/newt/classes/com/jogamp/newt/event/MouseEvent.java
index ceaf7d47a..d293d2db7 100644
--- a/src/newt/classes/com/jogamp/newt/event/MouseEvent.java
+++ b/src/newt/classes/com/jogamp/newt/event/MouseEvent.java
@@ -165,7 +165,13 @@ public class MouseEvent extends InputEvent
     }
 
     public String toString() {
-        StringBuilder sb = new StringBuilder();
+        return toString(null).toString();
+    }
+
+    public StringBuilder toString(StringBuilder sb) {
+        if(null == sb) {
+            sb = new StringBuilder();
+        }
         sb.append("MouseEvent[").append(getEventTypeString(getEventType()))
         .append(", ").append(x).append("/").append(y)
         .append(", button ").append(button).append(", count ")
@@ -182,8 +188,8 @@ public class MouseEvent extends InputEvent
             }
             sb.append("]");
         }        
-        sb.append(", ").append(super.toString()).append("]");
-        return sb.toString();
+        sb.append(", ");
+        return super.toString(sb).append("]");
     }
 
     public static String getEventTypeString(int type) {
diff --git a/src/newt/classes/com/jogamp/newt/event/NEWTEvent.java b/src/newt/classes/com/jogamp/newt/event/NEWTEvent.java
index 3f3817b91..fd5b69ccc 100644
--- a/src/newt/classes/com/jogamp/newt/event/NEWTEvent.java
+++ b/src/newt/classes/com/jogamp/newt/event/NEWTEvent.java
@@ -151,7 +151,14 @@ public class NEWTEvent extends java.util.EventObject {
     }
 
     public String toString() {
-        return "NEWTEvent[sys:"+isSystemEvent()+", source:"+getSource().getClass().getName()+", when:"+getWhen()+" d "+(System.currentTimeMillis()-getWhen())+"ms]";
+        return toString(null).toString();
+    }
+
+    public StringBuilder toString(StringBuilder sb) {
+        if(null == sb) {
+            sb = new StringBuilder();
+        }
+        return sb.append("NEWTEvent[sys:").append(isSystemEvent()).append(", source:").append(getSource().getClass().getName()).append(", when:").append(getWhen()).append(" d ").append((System.currentTimeMillis()-getWhen())).append("ms]");
     }
 
     public static String toHexString(int hex) {
@@ -161,5 +168,4 @@ public class NEWTEvent extends java.util.EventObject {
     public static String toHexString(long hex) {
         return "0x" + Long.toHexString(hex);
     }
-
 }
diff --git a/src/newt/classes/com/jogamp/newt/event/WindowEvent.java b/src/newt/classes/com/jogamp/newt/event/WindowEvent.java
index f3d62d8c6..163b51439 100644
--- a/src/newt/classes/com/jogamp/newt/event/WindowEvent.java
+++ b/src/newt/classes/com/jogamp/newt/event/WindowEvent.java
@@ -39,6 +39,7 @@ package com.jogamp.newt.event;
  * NEWT will automatically handle component moves and resizes internally, regardless of whether a program is receiving these events or not. <br>
  * The actual event semantic, here move and resize, is processed before the event is send.<br>
  */
+@SuppressWarnings("serial")
 public class WindowEvent extends NEWTEvent {
     public static final int EVENT_WINDOW_RESIZED = 100;
     public static final int EVENT_WINDOW_MOVED   = 101; 
@@ -64,8 +65,16 @@ public class WindowEvent extends NEWTEvent {
             default: return "unknown (" + type + ")";
         }
     }
+    
     public String toString() {
-        return "WindowEvent["+getEventTypeString(getEventType()) +
-            ", " + super.toString() + "]";
+        return toString(null).toString();
+    }
+
+    public StringBuilder toString(StringBuilder sb) {
+        if(null == sb) {
+            sb = new StringBuilder();
+        }
+        sb.append("WindowEvent[").append(getEventTypeString(getEventType())).append(", ");
+        return super.toString(sb).append("]");
     }
 }
diff --git a/src/newt/classes/com/jogamp/newt/event/WindowUpdateEvent.java b/src/newt/classes/com/jogamp/newt/event/WindowUpdateEvent.java
index 505939de2..e3f0373ec 100644
--- a/src/newt/classes/com/jogamp/newt/event/WindowUpdateEvent.java
+++ b/src/newt/classes/com/jogamp/newt/event/WindowUpdateEvent.java
@@ -30,6 +30,7 @@ package com.jogamp.newt.event;
 
 import javax.media.nativewindow.util.Rectangle;
 
+@SuppressWarnings("serial")
 public class WindowUpdateEvent extends WindowEvent {
     final Rectangle bounds;
 
@@ -44,6 +45,14 @@ public class WindowUpdateEvent extends WindowEvent {
     }
 
     public String toString() {
-        return "WindowUpdateEvent["+super.toString()+", "+bounds+"]";
+        return toString(null).toString();
+    }
+
+    public StringBuilder toString(StringBuilder sb) {
+        if(null == sb) {
+            sb = new StringBuilder();
+        }
+        sb.append("WindowUpdateEvent[").append(bounds).append(", ");
+        return super.toString(sb).append("]");
     }
 }
diff --git a/src/newt/classes/jogamp/newt/driver/macosx/WindowDriver.java b/src/newt/classes/jogamp/newt/driver/macosx/WindowDriver.java
index d0c0b8b20..4eeafb244 100644
--- a/src/newt/classes/jogamp/newt/driver/macosx/WindowDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/macosx/WindowDriver.java
@@ -49,6 +49,7 @@ import jogamp.newt.WindowImpl;
 import jogamp.newt.driver.DriverClearFocus;
 import jogamp.newt.driver.DriverUpdatePosition;
 
+import com.jogamp.newt.event.InputEvent;
 import com.jogamp.newt.event.KeyEvent;
 
 public class WindowDriver extends WindowImpl implements MutableSurface, DriverClearFocus, DriverUpdatePosition {
@@ -313,6 +314,14 @@ public class WindowDriver extends WindowImpl implements MutableSurface, DriverCl
         final boolean valid = validateKeyEvent(eventType, modifiers, keyCode);
         if(DEBUG_IMPLEMENTATION) System.err.println("MacWindow.sendKeyEvent "+Thread.currentThread().getName()+" char: 0x"+Integer.toHexString(keyChar)+", code 0x"+Integer.toHexString(keyCode)+" -> 0x"+Integer.toHexString(keyCode2)+", valid "+valid);
         if(valid) {
+            if(pressedKeyBalance > 1) {
+                // Auto-Repeat: OSX delivers only PRESSED
+                // inject auto-repeat RELEASE and TYPED keys _before_
+                pressedKeyBalance--;
+                modifiers |= InputEvent.AUTOREPEAT_MASK;
+                super.sendKeyEvent(KeyEvent.EVENT_KEY_RELEASED, modifiers, keyCode, (char)-1); // RELEASED
+                super.sendKeyEvent(KeyEvent.EVENT_KEY_TYPED, modifiers, keyCode, keyChar); // TYPED
+            }       
             // only deliver keyChar on key Typed events, harmonizing platform behavior
             keyChar = KeyEvent.EVENT_KEY_TYPED == eventType ? keyChar : (char)-1;
             super.sendKeyEvent(eventType, modifiers, keyCode2, keyChar);
@@ -327,6 +336,14 @@ public class WindowDriver extends WindowImpl implements MutableSurface, DriverCl
         final boolean valid = validateKeyEvent(eventType, modifiers, keyCode);
         if(DEBUG_IMPLEMENTATION) System.err.println("MacWindow.enqueueKeyEvent "+Thread.currentThread().getName()+" char: 0x"+Integer.toHexString(keyChar)+", code 0x"+Integer.toHexString(keyCode)+" -> 0x"+Integer.toHexString(keyCode2)+", valid "+valid);
         if(valid) {
+            if(pressedKeyBalance > 1) {
+                // Auto-Repeat: OSX delivers only PRESSED
+                // inject auto-repeat RELEASE and TYPED keys _before_
+                pressedKeyBalance--;
+                modifiers |= InputEvent.AUTOREPEAT_MASK;
+                super.enqueueKeyEvent(wait, KeyEvent.EVENT_KEY_RELEASED, modifiers, keyCode, (char)-1); // RELEASED
+                super.enqueueKeyEvent(wait, KeyEvent.EVENT_KEY_TYPED, modifiers, keyCode, keyChar); // TYPED
+            }       
             // only deliver keyChar on key Typed events, harmonizing platform behavior
             keyChar = KeyEvent.EVENT_KEY_TYPED == eventType ? keyChar : (char)-1;
             super.enqueueKeyEvent(wait, eventType, modifiers, keyCode2, keyChar);
@@ -335,14 +352,17 @@ public class WindowDriver extends WindowImpl implements MutableSurface, DriverCl
 
     private int keyDownModifiers = 0;
     private int keyDownCode = 0;
+    private int pressedKeyBalance = 0;
     
     private boolean validateKeyEvent(int eventType, int modifiers, int keyCode) {
         switch(eventType) {
             case KeyEvent.EVENT_KEY_PRESSED:
+                pressedKeyBalance++;
                 keyDownModifiers = modifiers;
                 keyDownCode = keyCode;
                 return true;
             case KeyEvent.EVENT_KEY_RELEASED:
+                pressedKeyBalance--;
                 return keyDownModifiers == modifiers && keyDownCode == keyCode;
             case KeyEvent.EVENT_KEY_TYPED:
                 final boolean matchKeyDown = keyDownModifiers == modifiers && keyDownCode == keyCode;
diff --git a/src/newt/classes/jogamp/newt/driver/windows/WindowDriver.java b/src/newt/classes/jogamp/newt/driver/windows/WindowDriver.java
index 5dbdeb458..18cc88472 100644
--- a/src/newt/classes/jogamp/newt/driver/windows/WindowDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/windows/WindowDriver.java
@@ -46,6 +46,7 @@ import javax.media.nativewindow.util.Insets;
 import javax.media.nativewindow.util.InsetsImmutable;
 import javax.media.nativewindow.util.Point;
 
+import com.jogamp.newt.event.InputEvent;
 import com.jogamp.newt.event.KeyEvent;
 import com.jogamp.newt.event.MouseAdapter;
 import com.jogamp.newt.event.MouseEvent;
@@ -258,9 +259,14 @@ public class WindowDriver extends WindowImpl {
         // nop - using event driven insetsChange(..)         
     }
     
-    private final int validateKeyCode(int eventType, int keyCode) {
+    private final int validateKeyCode(int eventType, int modifiers, int keyCode, char keyChar) {
         switch(eventType) {
+            case KeyEvent.EVENT_KEY_RELEASED:
+                pressedKeyBalance--;
+                lastPressedKeyCode = keyCode;
+                break;
             case KeyEvent.EVENT_KEY_PRESSED:
+                pressedKeyBalance++;
                 lastPressedKeyCode = keyCode;
                 break;
             case KeyEvent.EVENT_KEY_TYPED:
@@ -273,18 +279,40 @@ public class WindowDriver extends WindowImpl {
         return keyCode;
     }
     private int lastPressedKeyCode = 0;
+    private int pressedKeyBalance = 0;
+    private int autoRepeat = 0;
     
     @Override
     public void sendKeyEvent(int eventType, int modifiers, int keyCode, char keyChar) {
         // Note that we have to regenerate the keyCode for EVENT_KEY_TYPED on this platform
-        keyCode = validateKeyCode(eventType, keyCode);
-        super.sendKeyEvent(eventType, modifiers, keyCode, keyChar);        
+        keyCode = validateKeyCode(eventType, modifiers, keyCode, keyChar);
+        switch(eventType) {
+            case KeyEvent.EVENT_KEY_RELEASED:
+                // reorder: WINDOWS delivery order is PRESSED, TYPED and RELEASED -> NEWT order: PRESSED, RELEASED and TYPED
+                break;
+            case KeyEvent.EVENT_KEY_PRESSED:
+                if(pressedKeyBalance > 1) {
+                    // Auto-Repeat: WINDOWS delivers only PRESSED and TYPED.
+                    // Since reordering already injects RELEASE, we only need to set the AUTOREPEAT_MASK.
+                    pressedKeyBalance--;
+                    autoRepeat |= InputEvent.AUTOREPEAT_MASK;
+                } else {
+                    autoRepeat &= ~InputEvent.AUTOREPEAT_MASK;
+                }
+                super.sendKeyEvent(eventType, modifiers | autoRepeat, keyCode, (char)-1);
+                break;
+            case KeyEvent.EVENT_KEY_TYPED:
+                modifiers |= autoRepeat;
+                super.sendKeyEvent(KeyEvent.EVENT_KEY_RELEASED, modifiers, keyCode, (char)-1);
+                super.sendKeyEvent(eventType, modifiers, keyCode, keyChar);
+                break;
+        }
     }
     
     @Override
     public void enqueueKeyEvent(boolean wait, int eventType, int modifiers, int keyCode, char keyChar) {
         // Note that we have to regenerate the keyCode for EVENT_KEY_TYPED on this platform
-        keyCode = validateKeyCode(eventType, keyCode);
+        keyCode = validateKeyCode(eventType, modifiers, keyCode, keyChar);
         super.enqueueKeyEvent(wait, eventType, modifiers, keyCode, keyChar);
     }
     
diff --git a/src/newt/native/InputEvent.h b/src/newt/native/InputEvent.h
index b42c06d21..51c56c474 100644
--- a/src/newt/native/InputEvent.h
+++ b/src/newt/native/InputEvent.h
@@ -34,13 +34,19 @@
 #ifndef _INPUT_EVENT_H_
 #define _INPUT_EVENT_H_
 
-#define EVENT_SHIFT_MASK      1
-#define EVENT_CTRL_MASK       2
-#define EVENT_META_MASK       4
-#define EVENT_ALT_MASK        8
-#define EVENT_ALT_GRAPH_MASK 32
-#define EVENT_BUTTON1_MASK   (1<<6)
-#define EVENT_BUTTON2_MASK   (1<<7)
-#define EVENT_BUTTON3_MASK   (1<<8)
+#define EVENT_SHIFT_MASK      (1 <<  0)
+#define EVENT_CTRL_MASK       (1 <<  1)
+#define EVENT_META_MASK       (1 <<  2)
+#define EVENT_ALT_MASK        (1 <<  3)
+#define EVENT_ALT_GRAPH_MASK  (1 <<  5)
+#define EVENT_BUTTON1_MASK    (1 <<  6)
+#define EVENT_BUTTON2_MASK    (1 <<  7)
+#define EVENT_BUTTON3_MASK    (1 <<  8)
+#define EVENT_BUTTON4_MASK    (1 <<  9)
+#define EVENT_BUTTON5_MASK    (1 << 10)
+#define EVENT_BUTTON6_MASK    (1 << 11)
+#define EVENT_AUTOREPEAT_MASK (1 << 15)
+#define EVENT_CONFINED_MASK   (1 << 16)
+#define EVENT_INVISIBLE_MASK  (1 << 17)
 
 #endif
diff --git a/src/newt/native/X11Display.c b/src/newt/native/X11Display.c
index 3157538c3..84b3a7630 100644
--- a/src/newt/native/X11Display.c
+++ b/src/newt/native/X11Display.c
@@ -400,6 +400,7 @@ JNIEXPORT void JNICALL Java_jogamp_newt_driver_x11_DisplayDriver_DispatchMessage
     Display * dpy = (Display *) (intptr_t) display;
     Atom wm_delete_atom = (Atom)windowDeleteAtom;
     int num_events = 100;
+    int autoRepeatModifiers = 0;
 
     if ( NULL == dpy ) {
         return;
@@ -458,6 +459,19 @@ JNIEXPORT void JNICALL Java_jogamp_newt_driver_x11_DisplayDriver_DispatchMessage
  
         switch(evt.type) {
             case KeyRelease:
+                if (XEventsQueued(dpy, QueuedAfterReading)) {
+                  XEvent nevt;
+                  XPeekEvent(dpy, &nevt);
+
+                  if (nevt.type == KeyPress && nevt.xkey.time == evt.xkey.time &&
+                      nevt.xkey.keycode == evt.xkey.keycode)
+                  {
+                    autoRepeatModifiers |= EVENT_AUTOREPEAT_MASK;
+                  } else {
+                    autoRepeatModifiers &= ~EVENT_AUTOREPEAT_MASK;
+                  }
+                }
+                // fall through intended
             case KeyPress:
                 if(XLookupString(&evt.xkey,text,255,&keySym,0)==1) {
                     KeySym lower_return = 0, upper_return = 0;
@@ -469,13 +483,13 @@ JNIEXPORT void JNICALL Java_jogamp_newt_driver_x11_DisplayDriver_DispatchMessage
                     keyChar=0;
                     keySym = X11KeySym2NewtVKey(keySym);
                 }
-                modifiers = X11InputState2NewtModifiers(evt.xkey.state);
+                modifiers |= X11InputState2NewtModifiers(evt.xkey.state) | autoRepeatModifiers;
                 break;
 
             case ButtonPress:
             case ButtonRelease:
             case MotionNotify:
-                modifiers = X11InputState2NewtModifiers(evt.xbutton.state);
+                modifiers |= X11InputState2NewtModifiers(evt.xbutton.state);
                 break;
 
             default: