Fix Bug 678: Deliver key-char value for printable chars on all KeyEventListener (-> On Windows as well)

The following is observed, where t0 and t1 refer to subsequent different timestamps:
  NEWT delivery order:
      PRESSED (t0), RELEASED (t1) and TYPED (t1)

  WINDOWS delivery order:
      PRESSED (t0), TYPED (t0) and RELEASED (t1)
  Windows Auto-Repeat:
      PRESSED (t0), TYPED (t0)

Hence we changed the event reorder-code in NEWT to trigger NEWT-PRESSED on
Windows-TYPED for printable chars, assuring key-char values on all listener callbacks.

- KeyEvent.getKeyChar(): Removed disclaimer dedicated for Windows
- Keyevent.isActionKey(): Completed for all NEWT non-printable action keys; Added static variant
- Keyevent.isPrintableKey(): NEW: returns !isModifierKey(keyCode) && !isActionKey(keyCode) ; With static variant

- Windows WindowDriver:
  - EVENT_KEY_PRESSED handles non-printable chars only
  - EVENT_KEY_TYPE handles printable chars only
  - Native: VK_DELETE passes keyCode

- Unit tests: Wait for completion 1s -> 2s

3 files changed, 139 insertions, 67 deletions

diff --git a/src/newt/classes/com/jogamp/newt/event/KeyEvent.java b/src/newt/classes/com/jogamp/newt/event/KeyEvent.java
index 289aa31f6..ff67b7f57 100644
--- a/src/newt/classes/com/jogamp/newt/event/KeyEvent.java
+++ b/src/newt/classes/com/jogamp/newt/event/KeyEvent.java
@@ -74,12 +74,7 @@ public class KeyEvent extends InputEvent
     }
 
     /** 
-     * Returns the character matching the {@link #getKeyCode() virtual key code}, if exist.
-     * <p>
-     * <b>Disclaimer</b>: Only valid on all platforms at {@link KeyListener#keyTyped(KeyEvent)}.
-     * Precisely, on the Windows platform we currently cannot deliver the proper character
-     * in case of shifted keys where no uppercase exists, e.g. 'shift + 1' doesn't produce '!'.
-     * </p> 
+     * Returns the character matching the {@link #getKeyCode() virtual key code}.
      */
     public char getKeyChar() {
         return keyChar;
@@ -111,7 +106,12 @@ public class KeyEvent extends InputEvent
         }
     }
 
-    /** Returns true if <code>keyCode</code> represents a modifier key, i.e. one of {@link #VK_SHIFT}, {@link #VK_CONTROL}, {@link #VK_ALT}, {@link #VK_ALT_GRAPH}, {@link #VK_META}. */
+    /** 
+     * Returns true if the given <code>keyCode</code> represents a non-printable modifier key. 
+     * <p>
+     * A modifier key is one of {@link #VK_SHIFT}, {@link #VK_CONTROL}, {@link #VK_ALT}, {@link #VK_ALT_GRAPH}, {@link #VK_META}.
+     * </p>
+     */
     public static boolean isModifierKey(int keyCode) {
         switch (keyCode) {
             case VK_SHIFT:
@@ -125,58 +125,116 @@ public class KeyEvent extends InputEvent
         }
     }
     
-    /** Returns true if {@link #getKeyCode()} represents a modifier key, i.e. one of {@link #VK_SHIFT}, {@link #VK_CONTROL}, {@link #VK_ALT}, {@link #VK_ALT_GRAPH}, {@link #VK_META}. */
+    /** 
+     * Returns true if {@link #getKeyCode()} represents a non-printable modifier key. 
+     * <p>
+     * See {@link #isModifierKey(int)} for details.
+     * </p>
+     */
     public boolean isModifierKey() {
         return isModifierKey(keyCode);
     }
-    
-    public boolean isActionKey() {
+
+    /** 
+     * Returns true if the given <code>keyCode</code> represents a non-printable action key, which is not a {@link #isModifierKey(int) modifier key}.
+     * <p>
+     * An action key is one of {@link #VK_HOME}, {@link #VK_END}, {@link #VK_PAGE_UP}, {@link #VK_PAGE_DOWN}, {@link #VK_UP}, {@link #VK_PAGE_DOWN}, 
+     * {@link #VK_LEFT}, {@link #VK_RIGHT}, {@link #VK_F1}-{@link #VK_F24}, {@link #VK_PRINTSCREEN}, {@link #VK_CAPS_LOCK}, {@link #VK_PAUSE}, 
+     * {@link #VK_INSERT}, {@link #VK_HELP}, {@link #VK_WINDOWS}, etc ...
+     * </p>
+     */
+    public static boolean isActionKey(int keyCode) {
+        if( ( VK_F1             <= keyCode && keyCode <= VK_F24                 ) ||
+            ( VK_ALL_CANDIDATES <= keyCode && keyCode <= VK_INPUT_METHOD_ON_OFF ) ||
+            ( VK_CUT            <= keyCode && keyCode <= VK_STOP                ) ) {
+            return true;
+        }
+                
         switch (keyCode) {
-            case VK_HOME:
-            case VK_END:
+            case VK_CANCEL:
+            case VK_CLEAR:
+            case VK_PAUSE:
+            case VK_CAPS_LOCK:
+            case VK_ESCAPE:
             case VK_PAGE_UP:
             case VK_PAGE_DOWN:
-            case VK_UP:
-            case VK_DOWN:
+            case VK_END:
+            case VK_HOME:
             case VK_LEFT:
+            case VK_UP:
             case VK_RIGHT:
-    
-            case VK_F1:
-            case VK_F2:
-            case VK_F3:
-            case VK_F4:
-            case VK_F5:
-            case VK_F6:
-            case VK_F7:
-            case VK_F8:
-            case VK_F9:
-            case VK_F10:
-            case VK_F11:
-            case VK_F12:
-            case VK_F13:
-            case VK_F14:
-            case VK_F15:
-            case VK_F16:
-            case VK_F17:
-            case VK_F18:
-            case VK_F19:
-            case VK_F20:
-            case VK_F21:
-            case VK_F22:
-            case VK_F23:
-            case VK_F24:
+            case VK_DOWN:
+            case VK_DELETE:
+            case VK_NUM_LOCK:
+            case VK_SCROLL_LOCK:
+                    
             case VK_PRINTSCREEN:
-            case VK_CAPS_LOCK:
-            case VK_PAUSE:
             case VK_INSERT:
-    
             case VK_HELP:
+            case VK_META:
+            case VK_KP_UP:
+            case VK_KP_DOWN:
+            case VK_KP_LEFT:
+            case VK_KP_RIGHT:
+                
+            case VK_DEAD_VOICED_SOUND:
+            case VK_DEAD_SEMIVOICED_SOUND:
+                
             case VK_WINDOWS:
+            case VK_CONTEXT_MENU:
+            case VK_FINAL:
+                
+            case VK_CONVERT: 
+            case VK_NONCONVERT:
+            case VK_ACCEPT:
+            case VK_MODECHANGE:
+
+            case VK_KANA:
+            case VK_KANJI:
+                
+            case VK_ALPHANUMERIC:
+            case VK_KATAKANA:
+            case VK_HIRAGANA:
+            case VK_FULL_WIDTH:
+            case VK_HALF_WIDTH:
+            case VK_ROMAN_CHARACTERS:
+                
+            case VK_COMPOSE:
+            case VK_BEGIN:
+                    
                 return true;
         }
         return false;
     }
+    
+    /** 
+     * Returns true if {@link #getKeyCode() keyCode} represents a non-printable action key, which is not a {@link #isModifierKey(int) modifier key}.
+     * <p>
+     * See {@link #isActionKey(int)} for details.
+     * </p>
+     */
+    public boolean isActionKey() {
+        return isActionKey(keyCode);
+    }
+    
+    /** 
+     * Returns true if given <code>keyKode</code> represents a printable character, which is neither a {@link #isModifierKey(int) modifier key}
+     * nor an {@link #isActionKey(int) action key}.
+     * Otherwise returns <code>false</code>.
+     */
+    public static boolean isPrintableKey(int keyCode) {
+        return !isModifierKey(keyCode) && !isActionKey(keyCode);
+    }
 
+    /** 
+     * Returns true if {@link #getKeyCode() keyCode} represents a printable character, which is neither a {@link #isModifierKey(int) modifier key}
+     * nor an {@link #isActionKey(int) action key}.
+     * Otherwise returns <code>false</code>.
+     */
+    public boolean isPrintableKey() {
+        return isPrintableKey(keyCode);
+    }
+    
     private final int keyCode;
     private final char keyChar;
 
diff --git a/src/newt/classes/jogamp/newt/driver/windows/WindowDriver.java b/src/newt/classes/jogamp/newt/driver/windows/WindowDriver.java
index b2e518f45..650958f25 100644
--- a/src/newt/classes/jogamp/newt/driver/windows/WindowDriver.java
+++ b/src/newt/classes/jogamp/newt/driver/windows/WindowDriver.java
@@ -273,53 +273,67 @@ public class WindowDriver extends WindowImpl {
     private IntIntHashMap typedKeyCode2KeyChar = new IntIntHashMap(KeyEvent.VK_CONTEXT_MENU+1); 
 
     private final void handleKeyEvent(boolean send, boolean wait, int eventType, int modifiers, int keyCode, char keyChar) {
-        final boolean isModifierKeyCode = KeyEvent.isModifierKey(keyCode);
-        // System.err.println("*** handleKeyEvent: event "+KeyEvent.getEventTypeString(eventType)+", keyCode "+toHexString(keyCode)+", keyChar <"+keyChar+">, mods "+toHexString(modifiers)+", was: pressed "+isKeyPressed(keyCode)+", repeat "+isKeyInAutoRepeat(keyCode)+", isModifierKeyCode "+isModifierKeyCode);
+        final boolean isPrintableKey = KeyEvent.isPrintableKey(keyCode);
+        final boolean isModifierKey = KeyEvent.isModifierKey(keyCode);
+        // System.err.println("*** handleKeyEvent: event "+KeyEvent.getEventTypeString(eventType)+", keyCode "+toHexString(keyCode)+", keyChar <"+keyChar+">, mods "+toHexString(modifiers)+", was: pressed "+isKeyPressed(keyCode)+", repeat "+isKeyInAutoRepeat(keyCode)+", printableKey "+isPrintableKey+" [modifierKey "+isModifierKey+"] - "+System.currentTimeMillis());
         
-        // Reorder: WINDOWS delivery order is PRESSED, TYPED and RELEASED -> NEWT order: PRESSED, RELEASED and TYPED
-        // Auto-Repeat: WINDOWS delivers only PRESSED and TYPED.        
+        // Reorder: WINDOWS delivery order is PRESSED (t0), TYPED (t0) and RELEASED (t1) -> NEWT order: PRESSED (t0), RELEASED (t1) and TYPED (t1)
+        // Auto-Repeat: WINDOWS delivers only PRESSED (t0) and TYPED (t0).        
         switch(eventType) {
             case KeyEvent.EVENT_KEY_RELEASED:
+                final int keyCharTyped = typedKeyCode2KeyChar.put(keyCode, 0);
+                if( 0 != keyCharTyped ) {
+                    keyChar = (char)keyCharTyped;
+                }
                 if( isKeyCodeTracked(keyCode) ) {
-                    if( keyRepeatState.put(keyCode, false) && !isModifierKeyCode ) {
+                    if( keyRepeatState.put(keyCode, false) && !isModifierKey ) {
                         // AR out - send out missing PRESSED
                         emitKeyEvent(send, wait, KeyEvent.EVENT_KEY_PRESSED, modifiers | InputEvent.AUTOREPEAT_MASK, keyCode, keyChar);
                     }
                     keyPressedState.put(keyCode, false);
                 }
-                final int keyCharTyped = typedKeyCode2KeyChar.put(keyCode, 0);
-                if( 0 != keyCharTyped ) {
-                    keyChar = (char)keyCharTyped;
-                }
                 emitKeyEvent(send, wait, eventType, modifiers, keyCode, keyChar);
                 emitKeyEvent(send, wait, KeyEvent.EVENT_KEY_TYPED, modifiers, keyCode, keyChar);
                 break;
             case KeyEvent.EVENT_KEY_PRESSED:
-                if( isKeyCodeTracked(keyCode) ) {
-                    if( keyPressedState.put(keyCode, true) ) {
-                        // key was already pressed
-                        if( keyRepeatState.put(keyCode, true) && !isModifierKeyCode ) {
-                            emitKeyEvent(send, wait, eventType, modifiers | InputEvent.AUTOREPEAT_MASK, keyCode, keyChar);
-                        } // else AR in - skip already send PRESSED ; or ALT
-                    } else {
-                        emitKeyEvent(send, wait, eventType, modifiers, keyCode, keyChar);
+                // TYPED is delivered right after PRESSED for printable keys and contains the key-char information,
+                // hence we only deliver non printable keys (action and modifier keys) here.
+                // Modifier keys shall not AR.
+                if( !isPrintableKey ) {
+                    if( !handlePressTypedAutoRepeat(isModifierKey, send, wait, modifiers, keyCode, keyChar) ) {
+                        emitKeyEvent(send, wait, KeyEvent.EVENT_KEY_PRESSED, modifiers, keyCode, keyChar);
                     }
-                } else {
-                    emitKeyEvent(send, wait, eventType, modifiers, keyCode, keyChar);
                 }
                 break;
             case KeyEvent.EVENT_KEY_TYPED:
-                if( 1 == isKeyInAutoRepeat(keyCode) ) {
-                    modifiers |= InputEvent.AUTOREPEAT_MASK;
-                    emitKeyEvent(send, wait, KeyEvent.EVENT_KEY_RELEASED, modifiers, keyCode, keyChar);
-                    emitKeyEvent(send, wait, eventType, modifiers, keyCode, keyChar);
-                } else if( 0 != keyCode ) {
+                if( isPrintableKey ) {
                     typedKeyCode2KeyChar.put(keyCode, keyChar);
+                    if( !handlePressTypedAutoRepeat(isModifierKey, send, wait, modifiers, keyCode, keyChar) ) {
+                        emitKeyEvent(send, wait, KeyEvent.EVENT_KEY_PRESSED, modifiers, keyCode, keyChar);
+                    }
                 }
                 break;
         }
     }
     
+    private final boolean handlePressTypedAutoRepeat(boolean isModifierKey, boolean send, boolean wait, int modifiers, int keyCode, char keyChar) {
+        if( isKeyCodeTracked(keyCode) && keyPressedState.put(keyCode, true) ) {
+            final boolean preKeyRepeatState = keyRepeatState.put(keyCode, true);
+            if( !isModifierKey ) {
+                // AR: Key was already pressed: Either [enter | within] AR mode
+                modifiers |= InputEvent.AUTOREPEAT_MASK;
+                if( preKeyRepeatState ) {
+                    // AR: Within AR mode
+                    emitKeyEvent(send, wait, KeyEvent.EVENT_KEY_PRESSED, modifiers, keyCode, keyChar);
+                } // else { AR: Enter AR mode - skip already send PRESSED ; or ALT }
+                emitKeyEvent(send, wait, KeyEvent.EVENT_KEY_RELEASED, modifiers, keyCode, keyChar);
+                emitKeyEvent(send, wait, KeyEvent.EVENT_KEY_TYPED, modifiers, keyCode, keyChar);
+            }
+            return true;
+        } 
+        return false;
+    }
+    
     @Override
     public void sendKeyEvent(int eventType, int modifiers, int keyCode, char keyChar) {
         handleKeyEvent(true, false, eventType, modifiers, keyCode, keyChar);
diff --git a/src/newt/native/WindowsWindow.c b/src/newt/native/WindowsWindow.c
index 17b93cfce..24d513c68 100644
--- a/src/newt/native/WindowsWindow.c
+++ b/src/newt/native/WindowsWindow.c
@@ -605,7 +605,7 @@ static int WmKeyDown(JNIEnv *env, jobject window, UINT wkey, WORD repCnt, BYTE s
         (*env)->CallVoidMethod(env, window, sendKeyEventID,
                                (jint) EVENT_KEY_TYPED,
                                modifiers,
-                               (jint) 0,
+                               (jint) jkey,
                                (jchar) '\177');
     }