/*

 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

#import "NS_Java_ConversionUtils.h"

#import <Cocoa/Cocoa.h>

@interface JavaAppleScriptBaseConverter : NSObject <JNFTypeCoercion>

@end

@interface JavaAppleScriptImageConverter : NSObject <JNFTypeCoercion>

@end

@interface JavaAppleScriptVersionConverter : NSObject <JNFTypeCoercion>

@end

@interface JavaAppleScriptNullConverter : NSObject <JNFTypeCoercion>

@end

@implementation JavaAppleScriptEngineCoercion

static JNFTypeCoercer *appleScriptCoercer = nil;

+ (JNFTypeCoercer *) coercer {

    if (appleScriptCoercer) return appleScriptCoercer;

    id asSpecificCoercions = [[JNFDefaultCoercions defaultCoercer] deriveCoercer];

    [asSpecificCoercions addCoercion:[[[JavaAppleScriptImageConverter alloc] init] autorelease] forNSClass:[NSImage class] javaClass:@"java/awt/Image"];

    [asSpecificCoercions addCoercion:[[[JavaAppleScriptVersionConverter alloc] init] autorelease] forNSClass:[NSAppleEventDescriptor class] javaClass:nil];

    [asSpecificCoercions addCoercion:[[[JavaAppleScriptNullConverter alloc] init] autorelease] forNSClass:[NSNull class] javaClass:nil];

    return appleScriptCoercer = [asSpecificCoercions retain];

}

@end

// [NSObject description] <-> java.lang.Object.toString()

@implementation JavaAppleScriptBaseConverter

// by default, bizzare NSObjects will have -description called on them, and passed back to Java like that

- (jobject) coerceNSObject:(id)obj withEnv:(JNIEnv *)env usingCoercer:(JNFTypeCoercion *)coercer {

    return JNFNSToJavaString(env, [obj description]);

}

// by default, bizzare Java objects will be toString()'d and passed to AppleScript like that

- (id) coerceJavaObject:(jobject)obj withEnv:(JNIEnv *)env usingCoercer:(JNFTypeCoercion *)coercer {

    return JNFObjectToString(env, obj);

}

@end

// NSImage <-> apple.awt.CImage

@implementation JavaAppleScriptImageConverter

static JNF_CLASS_CACHE(jc_CImage, "apple/awt/CImage");

static JNF_STATIC_MEMBER_CACHE(jm_CImage_getCreator, jc_CImage, "getCreator", "()Lapple/awt/CImage$Creator;");

static JNF_MEMBER_CACHE(jm_CImage_getNSImage, jc_CImage, "getNSImage", "()J");

static JNF_CLASS_CACHE(jc_CImage_Generator, "apple/awt/CImage$Creator");

static JNF_MEMBER_CACHE(jm_CImage_Generator_createImageFromPtr, jc_CImage_Generator, "createImage", "(J)Ljava/awt/image/BufferedImage;");

static JNF_MEMBER_CACHE(jm_CImage_Generator_createImageFromImg, jc_CImage_Generator, "createImage", "(Ljava/awt/Image;)Lapple/awt/CImage;");

- (jobject) coerceNSObject:(id)obj withEnv:(JNIEnv *)env usingCoercer:(JNFTypeCoercion *)coercer {

    NSImage *img = (NSImage *)obj;

    CFRetain(img);

    jobject creator = JNFCallStaticObjectMethod(env, jm_CImage_getCreator);

    jobject jobj = JNFCallObjectMethod(env, creator, jm_CImage_Generator_createImageFromPtr, ptr_to_jlong(img));

    return jobj;

}

- (id) coerceJavaObject:(jobject)obj withEnv:(JNIEnv *)env usingCoercer:(JNFTypeCoercion *)coercer {

    jobject cimage = obj;

    if (!JNFIsInstanceOf(env, obj, &jc_CImage)) {

        jobject creator = JNFCallStaticObjectMethod(env, jm_CImage_getCreator);

        cimage = JNFCallObjectMethod(env, creator, jm_CImage_Generator_createImageFromImg, obj);

    }

    jlong nsImagePtr = JNFCallLongMethod(env, cimage, jm_CImage_getNSImage);

    NSImage *img = (NSImage *)jlong_to_ptr(nsImagePtr);

    return [[img retain] autorelease];

}

@end

// NSAppleEventDescriptor('vers') -> java.lang.String

@implementation JavaAppleScriptVersionConverter

- (jobject) coerceNSObject:(id)obj withEnv:(JNIEnv *)env usingCoercer:(JNFTypeCoercion *)coercer {

    NSAppleEventDescriptor *desc = (NSAppleEventDescriptor *)obj;

    const AEDesc *aeDesc = [desc aeDesc];

    if (aeDesc->descriptorType == typeNull) {

        return NULL;

    }

    return JNFNSToJavaString(env, [obj description]);

}

- (id) coerceJavaObject:(jobject)obj withEnv:(JNIEnv *)env usingCoercer:(JNFTypeCoercion *)coercer {

    return nil; // there is no Java object that represents a "version"

}

@end

// NSNull <-> null

@implementation JavaAppleScriptNullConverter

- (jobject) coerceNSObject:(id)obj withEnv:(JNIEnv *)env usingCoercer:(JNFTypeCoercion *)coercer {

    return NULL;

}

- (id) coerceJavaObject:(jobject)obj withEnv:(JNIEnv *)env usingCoercer:(JNFTypeCoercion *)coercer {

    return nil;

}

@end