/*

File: JavaQCView.m

Abstract:  Native implementation of QCView-CocoaComponent

    integration with Java.  Two operations are implemented using the

    asynchronous awtMessage API: loading a .qtz file and playing it. 

Version: 1.0

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*/

#import "JavaQCView.h"

/*

 * Class:     apple_dts_samplecode_qccocoacomponent_JavaQCView

 * Method:    nativeCreateNSViewLong

 * Signature: ()J

 */

JNIEXPORT jlong JNICALL Java_apple_dts_samplecode_qccocoacomponent_JavaQCView_createNSViewLong

  (JNIEnv *env, jobject caller) {

    JavaQCView *newView = [[[JavaQCView alloc] init] autorelease];

    return (jlong)newView;

}

@implementation JavaQCView

// Messages from Java peer via CocoaComponent.sendMessage

// These messages are received asynchronously from Java on the main AppKit thread

- (void) awtMessage:(jint)messageID message:(jobject)message env:(JNIEnv *)env {

    switch (messageID) {

        case apple_dts_samplecode_qccocoacomponent_JavaQCView_LOAD_MESSAGE:

            // CocoaComponent.sendMessage takes an Object; we need a String here

            if ((*env)->IsInstanceOf(env, message, (*env)->FindClass(env, "java/lang/String"))) {

                const jchar * chars = (*env)->GetStringChars(env, message, NULL);

                NSString *cocoaPath = [NSString stringWithCharacters:(unichar *)chars length:(*env)->GetStringLength(env, message)];

                [self loadCompositionFromFile:cocoaPath];

                (*env)->ReleaseStringChars(env, message, chars);

            } else {

                jclass argExcClass = (*env)->FindClass(env, "java/lang/IllegalArgumentException");

                (*env)->ThrowNew(env, argExcClass, "JavaQCView: sendMessage with an ID of LOAD_MESSAGE must be accompanied by a String");

            }

            break;

        case apple_dts_samplecode_qccocoacomponent_JavaQCView_START_MESSAGE:

            [self startRendering];

            break;

        default:

            break;

    }

}

@end