[pde-dev] Getting Tablet Events (in OS X)

[Sciss <contact@xxxxxxxx>]

hello,

i'm new to the list. i have a problem: i have using jerry huxtable's  
JNITablet ( http://www.jhlabs.com/java/tablet/ ) successfully for a  
long time now. i am now writing an Eclipse application in Scala,  
using my Java libraries. the code in JNITablet doesn't work any more  
because as it seems there is a stupidity that only one instance of  
NSApplication can exist and that has a non-plugable method sendEvent  
that is for mouse and tablet event notifications.

the approach of JNITablet is a follows: via JNI a call to startup is  
made which instantiates a fake-subclass of NSApplication, using some  
method named poseAsClass:

JNIEXPORT void JNICALL Java_com_jhlabs_jnitablet_TabletWrapper_startup 
(JNIEnv *env, jobject this) {
    [CustomApplication poseAsClass: [NSApplication class]];
    g_object = (*env)->NewGlobalRef( env, this );
    g_class = (*env)->GetObjectClass( env, this );
    g_class = (*env)->NewGlobalRef( env, g_class );
    if( g_class != (jclass) 0 ) {
        g_postMethodID			= (*env)->GetMethodID( env, g_class,  
"postEvent", "(IIFFIIIIIFFFFFSSS)V" );
        g_postProximityMethodID	= (*env)->GetMethodID( env, g_class,  
"postProximityEvent", "(IIZIIIIIIII)V" );
	} else {
		NSLog(@"JNITablet: Couldn't register java methods");
	}
}

this CustomApplication is as follows

@interface CustomApplication : NSApplication
@end

@implementation CustomApplication
- (void) sendEvent:(NSEvent *)event
{
    JNIEnv *env;
    bool shouldDetach = false;
	int clickCount = -1;

    switch ( [event type] ) {
    case NSLeftMouseDown:
    case NSLeftMouseUp:
		clickCount = [event clickCount];
	case NSMouseMoved:
    case NSLeftMouseDragged:
    case NSTabletPoint:
		// ...
		// ... here's the code that calls back into the Java VM
		// ...
	}
    [super sendEvent: event];
}
@end

as it turns out, now that my java code is running inside an eclipse  
application, CustomApplication's sendEvent is not called any more,  
hence i don't receive the tablet events. second problem is, i'm a  
java developer with barely any knowledge of: ObjectiveC, Cocoa, ....  
(and unfortunately, also SWT, as all my code is in Swing, using the  
SWT-to-Swing bridge)

so.... any hints are welcome as how i an reestablish my tablet event  
delivery...

thanks a lot!

ciao, -sciss-