NEWT/JOGL: MacOSX Update

Feature related:

- Added always-on-top

- Added translucency

- Child Window Position

  - AWT parent: manual traverse up the tree and calc position on screen
    (Problem: the parent view rect is not at the proper position,
     but covers the whole frame)

EDTUtil related:

- Works now w/ AWT ot headless (again)

- OSX native JNI callbacks gathering JNIEnv properly
  and attaches/detaches thread.

- AWT case: using AWT-Event which properly dispatches our cocoa events

- MainThread (headless) case: Fork off thread w/ main class
  and kick off NSApp run().
  This leads to same behavior as w/ AWT case.

- Using DefaultEDTUtil

- Cleanup MainThread (implements EDTUtil)
  - Currently not used as EDTUtil (osx), just as launcher
  - Removed EDTUtil impl code, reuse DefaultEDTUtil

- Cleanup AWTEDTUtil (implements EDTUtil)
  - Currently not used as EDTUtil (osx)

1 files changed, 27 insertions, 0 deletions

diff --git a/src/newt/native/NewtCommon.c b/src/newt/native/NewtCommon.c
index f44d71901..3713cfd6c 100644
--- a/src/newt/native/NewtCommon.c
+++ b/src/newt/native/NewtCommon.c
@@ -53,3 +53,30 @@ jchar* NewtCommon_GetNullTerminatedStringChars(JNIEnv* env, jstring str)
     return strChars;
 }
 
+JNIEnv* NewtCommon_GetJNIEnv(JavaVM * jvmHandle, int jvmVersion, int * shallBeDetached) {
+    JNIEnv* curEnv = NULL;
+    JNIEnv* newEnv = NULL;
+    int envRes;
+
+    // retrieve this thread's JNIEnv curEnv - or detect it's detached
+    envRes = (*jvmHandle)->GetEnv(jvmHandle, (void **) &curEnv, jvmVersion) ;
+    if( JNI_EDETACHED == envRes ) {
+        // detached thread - attach to JVM
+        if( JNI_OK != ( envRes = (*jvmHandle)->AttachCurrentThread(jvmHandle, (void**) &newEnv, NULL) ) ) {
+            fprintf(stderr, "JNIEnv: can't attach thread: %d\n", envRes);
+            return NULL;
+        }
+        curEnv = newEnv;
+    } else if( JNI_OK != envRes ) {
+        // oops ..
+        fprintf(stderr, "can't GetEnv: %d\n", envRes);
+        return NULL;
+    }
+    if (curEnv==NULL) {
+        fprintf(stderr, "env is NULL\n");
+        return NULL;
+    }
+    *shallBeDetached = NULL != newEnv;
+    return curEnv;
+}
+