SharpMuPDF/mupdf/platform/java/jni/pdfobject.c

// Copyright (C) 2004-2025 Artifex Software, Inc.
//
// This file is part of MuPDF.
//
// MuPDF is free software: you can redistribute it and/or modify it under the
// terms of the GNU Affero General Public License as published by the Free
// Software Foundation, either version 3 of the License, or (at your option)
// any later version.
//
// MuPDF 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 Affero General Public License for more
// details.
//
// You should have received a copy of the GNU Affero General Public License
// along with MuPDF. If not, see <https://www.gnu.org/licenses/agpl-3.0.en.html>
//
// Alternative licensing terms are available from the licensor.
// For commercial licensing, see <https://www.artifex.com/> or contact
// Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
// CA 94129, USA, for further information.

/* PDFObject interface */

JNIEXPORT void JNICALL
FUN(PDFObject_finalize)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject_safe(env, self);
	if (!ctx || !obj) return;
	(*env)->SetLongField(env, self, fid_PDFObject_pointer, 0);
	pdf_drop_obj(ctx, obj);
}

JNIEXPORT jint JNICALL
FUN(PDFObject_toIndirect)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	int num = 0;

	if (!ctx || !obj) return 0;

	fz_try(ctx)
		num = pdf_to_num(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return num;
}

JNIEXPORT jboolean JNICALL
FUN(PDFObject_isIndirect)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	int b = 0;

	if (!ctx || !obj) return JNI_FALSE;

	fz_try(ctx)
		b = pdf_is_indirect(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return b ? JNI_TRUE : JNI_FALSE;
}

JNIEXPORT jboolean JNICALL
FUN(PDFObject_isBoolean)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	int b = 0;

	if (!ctx || !obj) return JNI_FALSE;

	fz_try(ctx)
		b = pdf_is_bool(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return b ? JNI_TRUE : JNI_FALSE;
}

JNIEXPORT jboolean JNICALL
FUN(PDFObject_isInteger)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	int b = 0;

	if (!ctx || !obj) return JNI_FALSE;

	fz_try(ctx)
		b = pdf_is_int(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return b ? JNI_TRUE : JNI_FALSE;
}

JNIEXPORT jboolean JNICALL
FUN(PDFObject_isReal)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	int b = 0;

	if (!ctx || !obj) return JNI_FALSE;

	fz_try(ctx)
		b = pdf_is_real(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return b ? JNI_TRUE : JNI_FALSE;
}

JNIEXPORT jboolean JNICALL
FUN(PDFObject_isNumber)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	int b = 0;

	if (!ctx || !obj) return JNI_FALSE;

	fz_try(ctx)
		b = pdf_is_number(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return b ? JNI_TRUE : JNI_FALSE;
}

JNIEXPORT jboolean JNICALL
FUN(PDFObject_isString)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	int b = 0;

	if (!ctx || !obj) return JNI_FALSE;

	fz_try(ctx)
		b = pdf_is_string(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return b ? JNI_TRUE : JNI_FALSE;
}

JNIEXPORT jboolean JNICALL
FUN(PDFObject_isName)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	int b = 0;

	if (!ctx || !obj) return JNI_FALSE;

	fz_try(ctx)
		b = pdf_is_name(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return b ? JNI_TRUE : JNI_FALSE;
}

JNIEXPORT jboolean JNICALL
FUN(PDFObject_isArray)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	int b = 0;

	if (!ctx || !obj) return JNI_FALSE;

	fz_try(ctx)
		b = pdf_is_array(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return b ? JNI_TRUE : JNI_FALSE;
}

JNIEXPORT jboolean JNICALL
FUN(PDFObject_isDictionary)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	int b = 0;

	if (!ctx || !obj) return JNI_FALSE;

	fz_try(ctx)
		b = pdf_is_dict(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return b ? JNI_TRUE : JNI_FALSE;
}

JNIEXPORT jboolean JNICALL
FUN(PDFObject_isStream)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	int b = 0;

	if (!ctx || !obj) return JNI_FALSE;

	fz_try(ctx)
		b = pdf_is_stream(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return b ? JNI_TRUE : JNI_FALSE;
}

JNIEXPORT jbyteArray JNICALL
FUN(PDFObject_readStream)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	fz_buffer *buf = NULL;
	jbyteArray arr = NULL;

	if (!ctx || !obj) return NULL;

	fz_var(buf);
	fz_try(ctx)
	{
		unsigned char *data;
		size_t len;

		buf = pdf_load_stream(ctx, obj);
		len = fz_buffer_storage(ctx, buf, &data);

		arr = (*env)->NewByteArray(env, (jsize)len);
		if ((*env)->ExceptionCheck(env))
			fz_throw_java(ctx, env);
		if (!arr)
			fz_throw(ctx, FZ_ERROR_GENERIC, "can not create byte array");

		(*env)->SetByteArrayRegion(env, arr, 0, (jsize)len, (signed char *) data);
		if ((*env)->ExceptionCheck(env))
			fz_throw_java(ctx, env);
	}
	fz_always(ctx)
		fz_drop_buffer(ctx, buf);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return arr;
}

JNIEXPORT jbyteArray JNICALL
FUN(PDFObject_readRawStream)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	fz_buffer *buf = NULL;
	jbyteArray arr = NULL;

	if (!ctx || !obj) return NULL;

	fz_var(buf);
	fz_try(ctx)
	{
		unsigned char *data;
		size_t len;

		buf = pdf_load_raw_stream(ctx, obj);
		len = fz_buffer_storage(ctx, buf, &data);

		arr = (*env)->NewByteArray(env, (jsize)len);
		if ((*env)->ExceptionCheck(env))
			fz_throw_java(ctx, env);
		if (!arr)
			fz_throw(ctx, FZ_ERROR_GENERIC, "cannot create byte array");

		(*env)->SetByteArrayRegion(env, arr, 0, (jsize)len, (signed char *) &data[0]);
		if ((*env)->ExceptionCheck(env))
			fz_throw_java(ctx, env);
	}
	fz_always(ctx)
		fz_drop_buffer(ctx, buf);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return arr;
}

JNIEXPORT void JNICALL
FUN(PDFObject_writeObject)(JNIEnv *env, jobject self, jobject jobj)
{
	fz_context *ctx = get_context(env);
	pdf_obj *ref = from_PDFObject(env, self);
	pdf_document *pdf = pdf_get_bound_document(ctx, ref);
	pdf_obj *obj = from_PDFObject(env, jobj);

	if (!ctx || !obj) return;
	if (!pdf) jni_throw_arg_void(env, "object not bound to document");
	if (!obj) jni_throw_arg_void(env, "object must not be null");

	fz_try(ctx)
		pdf_update_object(ctx, pdf, pdf_to_num(ctx, ref), obj);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_writeStreamBuffer)(JNIEnv *env, jobject self, jobject jbuf)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	pdf_document *pdf = pdf_get_bound_document(ctx, obj);
	fz_buffer *buf = from_Buffer(env, jbuf);

	if (!ctx || !obj) return;
	if (!pdf) jni_throw_arg_void(env, "object not bound to document");
	if (!buf) jni_throw_arg_void(env, "buffer must not be null");

	fz_try(ctx)
		pdf_update_stream(ctx, pdf, obj, buf, 0);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_writeStreamString)(JNIEnv *env, jobject self, jstring jstr)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	pdf_document *pdf = pdf_get_bound_document(ctx, obj);
	const char *str = NULL;
	fz_buffer *buf = NULL;

	if (!ctx || !obj) return;
	if (!pdf) jni_throw_arg_void(env, "object not bound to document");
	if (!jstr) jni_throw_arg_void(env, "string must not be null");

	str = (*env)->GetStringUTFChars(env, jstr, NULL);
	if (!str) return;

	fz_var(buf);

	fz_try(ctx)
	{
		buf = fz_new_buffer_from_copied_data(ctx, (const unsigned char *)str, strlen(str));
		pdf_update_stream(ctx, pdf, obj, buf, 0);
	}
	fz_always(ctx)
	{
		fz_drop_buffer(ctx, buf);
		(*env)->ReleaseStringUTFChars(env, jstr, str);
	}
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_writeRawStreamBuffer)(JNIEnv *env, jobject self, jobject jbuf)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	pdf_document *pdf = pdf_get_bound_document(ctx, obj);
	fz_buffer *buf = from_Buffer(env, jbuf);

	if (!ctx || !obj) return;
	if (!pdf) jni_throw_arg_void(env, "object not bound to document");
	if (!buf) jni_throw_arg_void(env, "buffer must not be null");

	fz_try(ctx)
		pdf_update_stream(ctx, pdf, obj, buf, 1);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_writeRawStreamString)(JNIEnv *env, jobject self, jstring jstr)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	pdf_document *pdf = pdf_get_bound_document(ctx, obj);
	const char *str = NULL;
	fz_buffer *buf = NULL;

	if (!ctx || !obj) return;
	if (!pdf) jni_throw_arg_void(env, "object not bound to document");
	if (!jstr) jni_throw_arg_void(env, "string must not be null");

	str = (*env)->GetStringUTFChars(env, jstr, NULL);
	if (!str) return;

	fz_var(buf);

	fz_try(ctx)
	{
		buf = fz_new_buffer_from_copied_data(ctx, (const unsigned char *)str, strlen(str));
		pdf_update_stream(ctx, pdf, obj, buf, 1);
	}
	fz_always(ctx)
	{
		fz_drop_buffer(ctx, buf);
		(*env)->ReleaseStringUTFChars(env, jstr, str);
	}
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT jobject JNICALL
FUN(PDFObject_resolve)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	pdf_obj *ind = NULL;
	jobject jobj;

	if (!ctx) return NULL;

	if (!obj) return to_PDFObject_safe(ctx, env, NULL);

	fz_try(ctx)
		ind = pdf_resolve_indirect(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	pdf_keep_obj(ctx, ind);
	jobj = (*env)->NewObject(env, cls_PDFObject, mid_PDFObject_init, jlong_cast(ind));
	if (!jobj)
		pdf_drop_obj(ctx, ind);
	return jobj;
}

JNIEXPORT jobject JNICALL
FUN(PDFObject_getArray)(JNIEnv *env, jobject self, jint index)
{
	fz_context *ctx = get_context(env);
	pdf_obj *arr = from_PDFObject(env, self);
	pdf_obj *val = NULL;

	if (!ctx) return NULL;

	if (!arr) return to_PDFObject_safe(ctx, env, NULL);

	fz_try(ctx)
		val = pdf_array_get(ctx, arr, index);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return to_PDFObject_safe(ctx, env, val);
}

JNIEXPORT jobject JNICALL
FUN(PDFObject_getDictionary)(JNIEnv *env, jobject self, jstring jname, jboolean inheritable)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	const char *name = NULL;
	pdf_obj *val = NULL;

	if (!ctx) return NULL;
	if (!jname) jni_throw_arg(env, "name must not be null");

	if (!dict) return to_PDFObject_safe(ctx, env, NULL);

	name = (*env)->GetStringUTFChars(env, jname, NULL);
	if (!name) jni_throw_run(env, "cannot get name to lookup");

	fz_try(ctx)
		if (inheritable)
			val = pdf_dict_gets_inheritable(ctx, dict, name);
		else
			val = pdf_dict_gets(ctx, dict, name);
	fz_always(ctx)
		(*env)->ReleaseStringUTFChars(env, jname, name);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return to_PDFObject_safe(ctx, env, val);
}

JNIEXPORT jobject JNICALL
FUN(PDFObject_getDictionaryKey)(JNIEnv *env, jobject self, jint index)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	pdf_obj *key = NULL;

	if (!ctx) return NULL;

	if (!dict) return to_PDFObject_safe(ctx, env, NULL);

	fz_try(ctx)
		key = pdf_dict_get_key(ctx, dict, index);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return to_PDFObject_safe(ctx, env, key);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putArrayBoolean)(JNIEnv *env, jobject self, jint index, jboolean b)
{
	fz_context *ctx = get_context(env);
	pdf_obj *arr = from_PDFObject(env, self);

	if (!ctx || !arr) return;

	fz_try(ctx)
		pdf_array_put(ctx, arr, index, b ? PDF_TRUE : PDF_FALSE);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putArrayInteger)(JNIEnv *env, jobject self, jint index, jint i)
{
	fz_context *ctx = get_context(env);
	pdf_obj *arr = from_PDFObject(env, self);

	if (!ctx || !arr) return;

	fz_try(ctx)
		pdf_array_put_drop(ctx, arr, index, pdf_new_int(ctx, i));
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putArrayFloat)(JNIEnv *env, jobject self, jint index, jfloat f)
{
	fz_context *ctx = get_context(env);
	pdf_obj *arr = from_PDFObject(env, self);

	if (!ctx || !arr) return;

	fz_try(ctx)
		pdf_array_put_drop(ctx, arr, index, pdf_new_real(ctx, f));
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putArrayString)(JNIEnv *env, jobject self, jint index, jstring jstr)
{
	fz_context *ctx = get_context(env);
	pdf_obj *arr = from_PDFObject(env, self);
	const char *str = NULL;

	if (!ctx || !arr) return;
	if (jstr)
	{
		str = (*env)->GetStringUTFChars(env, jstr, NULL);
		if (!str) return;
	}

	fz_try(ctx)
	{
		if (str)
			pdf_array_put_string(ctx, arr, index, str, strlen(str));
		else
			pdf_array_put(ctx, arr, index, PDF_NULL);
	}
	fz_always(ctx)
	{
		if (str)
			(*env)->ReleaseStringUTFChars(env, jstr, str);
	}
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putArrayPDFObject)(JNIEnv *env, jobject self, jint index, jobject jobj)
{
	fz_context *ctx = get_context(env);
	pdf_obj *arr = from_PDFObject(env, self);
	pdf_obj *obj = from_PDFObject(env, jobj);

	if (!ctx || !arr) return;

	fz_try(ctx)
		pdf_array_put(ctx, arr, index, obj);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putDictionaryStringBoolean)(JNIEnv *env, jobject self, jstring jname, jboolean b)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	const char *name = NULL;
	pdf_obj *key = NULL;

	if (!ctx || !dict) return;
	if (jname)
	{
		name = (*env)->GetStringUTFChars(env, jname, NULL);
		if (!name) return;
	}

	fz_var(key);

	fz_try(ctx)
	{
		key = name ? pdf_new_name(ctx, name) : NULL;
		pdf_dict_put(ctx, dict, key, b ? PDF_TRUE : PDF_FALSE);
	}
	fz_always(ctx)
	{
		pdf_drop_obj(ctx, key);
		if (name)
			(*env)->ReleaseStringUTFChars(env, jname, name);
	}
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putDictionaryStringInteger)(JNIEnv *env, jobject self, jstring jname, jint i)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	const char *name = NULL;
	pdf_obj *key = NULL;

	if (!ctx || !dict) return;
	if (jname)
	{
		name = (*env)->GetStringUTFChars(env, jname, NULL);
		if (!name) return;
	}

	fz_var(key);

	fz_try(ctx)
	{
		key = name ? pdf_new_name(ctx, name) : NULL;
		pdf_dict_put_int(ctx, dict, key, i);
	}
	fz_always(ctx)
	{
		pdf_drop_obj(ctx, key);
		if (name)
			(*env)->ReleaseStringUTFChars(env, jname, name);
	}
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putDictionaryStringFloat)(JNIEnv *env, jobject self, jstring jname, jfloat f)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	const char *name = NULL;
	pdf_obj *key = NULL;

	if (!ctx || !dict) return;
	if (jname)
	{
		name = (*env)->GetStringUTFChars(env, jname, NULL);
		if (!name) return;
	}

	fz_var(key);

	fz_try(ctx)
	{
		key = name ? pdf_new_name(ctx, name) : NULL;
		pdf_dict_put_real(ctx, dict, key, f);
	}
	fz_always(ctx)
	{
		pdf_drop_obj(ctx, key);
		if (name)
			(*env)->ReleaseStringUTFChars(env, jname, name);
	}
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putDictionaryStringString)(JNIEnv *env, jobject self, jstring jname, jstring jstr)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	const char *name = NULL;
	const char *str = NULL;
	pdf_obj *key = NULL;

	if (!ctx || !dict) return;
	if (jname)
	{
		name = (*env)->GetStringUTFChars(env, jname, NULL);
		if (!name) return;
	}
	if (jstr)
	{
		str = (*env)->GetStringUTFChars(env, jstr, NULL);
		if (!str)
		{
			(*env)->ReleaseStringUTFChars(env, jname, str);
			return;
		}
	}

	fz_var(key);

	fz_try(ctx)
	{
		key = name ? pdf_new_name(ctx, name) : NULL;
		if (str)
			pdf_dict_put_string(ctx, dict, key, str, strlen(str));
		else
			pdf_dict_put(ctx, dict, key, PDF_NULL);
	}
	fz_always(ctx)
	{
		pdf_drop_obj(ctx, key);
		if (str)
			(*env)->ReleaseStringUTFChars(env, jstr, str);
		if (name)
			(*env)->ReleaseStringUTFChars(env, jname, name);
	}
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putDictionaryStringPDFObject)(JNIEnv *env, jobject self, jstring jname, jobject jobj)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	pdf_obj *val = from_PDFObject(env, jobj);
	const char *name = NULL;
	pdf_obj *key = NULL;

	if (!ctx || !dict) return;
	if (jname)
	{
		name = (*env)->GetStringUTFChars(env, jname, NULL);
		if (!name) return;
	}

	fz_var(key);

	fz_try(ctx)
	{
		key = name ? pdf_new_name(ctx, name) : NULL;
		pdf_dict_put(ctx, dict, key, val);
	}
	fz_always(ctx)
	{
		pdf_drop_obj(ctx, key);
		if (name)
			(*env)->ReleaseStringUTFChars(env, jname, name);
	}
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putDictionaryPDFObjectBoolean)(JNIEnv *env, jobject self, jobject jname, jboolean b)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	pdf_obj *name = from_PDFObject(env, jname);

	if (!ctx || !dict) return;

	fz_try(ctx)
		pdf_dict_put(ctx, dict, name, b ? PDF_TRUE : PDF_FALSE);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putDictionaryPDFObjectInteger)(JNIEnv *env, jobject self, jobject jname, jint i)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	pdf_obj *name = from_PDFObject(env, jname);

	if (!ctx || !dict) return;

	fz_try(ctx)
		pdf_dict_put_int(ctx, dict, name, i);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putDictionaryPDFObjectFloat)(JNIEnv *env, jobject self, jobject jname, jfloat f)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	pdf_obj *name = from_PDFObject(env, jname);

	if (!ctx || !dict) return;

	fz_try(ctx)
		pdf_dict_put_real(ctx, dict, name, f);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putDictionaryPDFObjectString)(JNIEnv *env, jobject self, jobject jname, jstring jstr)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	pdf_obj *name = from_PDFObject(env, jname);
	const char *str = NULL;

	if (!ctx || !dict) return;
	if (jstr)
	{
		str = (*env)->GetStringUTFChars(env, jstr, NULL);
		if (!str) return;
	}

	fz_try(ctx)
	{
		if (str)
			pdf_dict_put_string(ctx, dict, name, str, strlen(str));
		else
			pdf_dict_put(ctx, dict, name, PDF_NULL);
	}
	fz_always(ctx)
	{
		if (str)
			(*env)->ReleaseStringUTFChars(env, jstr, str);
	}
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putDictionaryPDFObjectPDFObject)(JNIEnv *env, jobject self, jobject jname, jobject jobj)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	pdf_obj *name = from_PDFObject(env, jname);
	pdf_obj *obj = from_PDFObject(env, jobj);

	if (!ctx || !dict) return;

	fz_try(ctx)
		pdf_dict_put(ctx, dict, name, obj);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putDictionaryPDFObjectRect)(JNIEnv *env, jobject self, jobject jname, jobject jrect)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	pdf_obj *name = from_PDFObject(env, jname);
	fz_rect rect  = from_Rect(env, jrect);

	if (!ctx || !dict) return;

	fz_try(ctx)
		pdf_dict_put_rect(ctx, dict, name, rect);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putDictionaryPDFObjectMatrix)(JNIEnv *env, jobject self, jobject jname, jobject jmatrix)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	pdf_obj *name = from_PDFObject(env, jname);
	fz_matrix matrix = from_Matrix(env, jmatrix);

	if (!ctx || !dict) return;

	fz_try(ctx)
		pdf_dict_put_matrix(ctx, dict, name, matrix);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putDictionaryPDFObjectDate)(JNIEnv *env, jobject self, jobject jname, jlong secs)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	pdf_obj *name = from_PDFObject(env, jname);

	if (!ctx || !dict) return;

	fz_try(ctx)
		pdf_dict_put_date(ctx, dict, name, secs);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putDictionaryStringRect)(JNIEnv *env, jobject self, jstring jname, jobject jrect)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	fz_rect rect  = from_Rect(env, jrect);
	const char *name = NULL;
	pdf_obj *key = NULL;

	if (!ctx || !dict) return;
	if (jname)
	{
		name = (*env)->GetStringUTFChars(env, jname, NULL);
		if (!name) return;
	}

	fz_var(key);

	fz_try(ctx)
	{
		key = name ? pdf_new_name(ctx, name) : NULL;
		pdf_dict_put_rect(ctx, dict, key, rect);
	}
	fz_always(ctx)
	{
		pdf_drop_obj(ctx, key);
		if (name)
			(*env)->ReleaseStringUTFChars(env, jname, name);
	}
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putDictionaryStringMatrix)(JNIEnv *env, jobject self, jstring jname, jobject jmatrix)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	fz_matrix matrix  = from_Matrix(env, jmatrix);
	const char *name = NULL;
	pdf_obj *key = NULL;

	if (!ctx || !dict) return;
	if (jname)
	{
		name = (*env)->GetStringUTFChars(env, jname, NULL);
		if (!name) return;
	}

	fz_var(key);

	fz_try(ctx)
	{
		key = name ? pdf_new_name(ctx, name) : NULL;
		pdf_dict_put_matrix(ctx, dict, key, matrix);
	}
	fz_always(ctx)
	{
		pdf_drop_obj(ctx, key);
		if (name)
			(*env)->ReleaseStringUTFChars(env, jname, name);
	}
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_putDictionaryStringDate)(JNIEnv *env, jobject self, jstring jname, jlong time)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	const char *name = NULL;
	pdf_obj *key = NULL;

	if (!ctx || !dict) return;
	if (jname)
	{
		name = (*env)->GetStringUTFChars(env, jname, NULL);
		if (!name) return;
	}

	fz_var(key);

	fz_try(ctx)
	{
		key = name ? pdf_new_name(ctx, name) : NULL;
		pdf_dict_put_date(ctx, dict, key, time);
	}
	fz_always(ctx)
	{
		pdf_drop_obj(ctx, key);
		if (name)
			(*env)->ReleaseStringUTFChars(env, jname, name);
	}
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}


JNIEXPORT void JNICALL
FUN(PDFObject_deleteArray)(JNIEnv *env, jobject self, jint index)
{
	fz_context *ctx = get_context(env);
	pdf_obj *arr = from_PDFObject(env, self);

	if (!ctx || !arr) return;

	fz_try(ctx)
		pdf_array_delete(ctx, arr, index);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_deleteDictionaryString)(JNIEnv *env, jobject self, jstring jname)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	const char *name = NULL;

	if (!ctx || !dict) return;
	if (jname)
	{
		name = (*env)->GetStringUTFChars(env, jname, NULL);
		if (!name) return;
	}

	fz_try(ctx)
	{
		pdf_dict_dels(ctx, dict, name);
	}
	fz_always(ctx)
	{
		if (name)
			(*env)->ReleaseStringUTFChars(env, jname, name);
	}
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_deleteDictionaryPDFObject)(JNIEnv *env, jobject self, jobject jname)
{
	fz_context *ctx = get_context(env);
	pdf_obj *dict = from_PDFObject(env, self);
	pdf_obj *name = from_PDFObject(env, jname);

	if (!ctx || !dict) return;

	fz_try(ctx)
		pdf_dict_del(ctx, dict, name);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT jboolean JNICALL
FUN(PDFObject_asBoolean)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	int b = 0;

	if (!ctx || !obj) return JNI_FALSE;

	fz_try(ctx)
		b = pdf_to_bool(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return b ? JNI_TRUE : JNI_FALSE;
}

JNIEXPORT jint JNICALL
FUN(PDFObject_asInteger)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	int i = 0;

	if (!ctx || !obj) return 0;

	fz_try(ctx)
		i = pdf_to_int(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return i;
}

JNIEXPORT jfloat JNICALL
FUN(PDFObject_asFloat)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	float f = 0;

	if (!ctx || !obj) return 0;

	fz_try(ctx)
		f = pdf_to_real(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return f;
}

JNIEXPORT jint JNICALL
FUN(PDFObject_asIndirect)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	int ind = 0;

	if (!ctx || !obj) return 0;

	fz_try(ctx)
		ind = pdf_to_num(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return ind;
}

JNIEXPORT jstring JNICALL
FUN(PDFObject_asString)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	const char *str = NULL;

	if (!ctx || !obj) return NULL;

	fz_try(ctx)
		str = pdf_to_text_string(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return (*env)->NewStringUTF(env, str);
}

JNIEXPORT jobject JNICALL
FUN(PDFObject_asByteString)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	const char *str = NULL;
	jobject jbs = NULL;
	jbyte *bs = NULL;
	size_t len;

	if (!ctx || !obj) return NULL;

	fz_try(ctx)
	{
		str = pdf_to_str_buf(ctx, obj);
		len = pdf_to_str_len(ctx, obj);
	}
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	jbs = (*env)->NewByteArray(env, len);
	if ((*env)->ExceptionCheck(env)) return NULL;
	if (!jbs) jni_throw_run(env, "cannot create byte array");
	bs = (*env)->GetByteArrayElements(env, jbs, NULL);
	if (!bs) return NULL;

	memcpy(bs, str, len);

	(*env)->ReleaseByteArrayElements(env, jbs, bs, 0);

	return jbs;
}

JNIEXPORT jstring JNICALL
FUN(PDFObject_asName)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	const char *str = NULL;

	if (!ctx || !obj) return NULL;

	fz_try(ctx)
		str = pdf_to_name(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return (*env)->NewStringUTF(env, str);
}

JNIEXPORT jint JNICALL
FUN(PDFObject_size)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject(env, self);
	int len;

	if (!ctx || !obj) return 0;

	fz_try(ctx)
	{
		if (pdf_is_array(ctx, obj))
			len = pdf_array_len(ctx, obj);
		else if (pdf_is_dict(ctx, obj))
			len = pdf_dict_len(ctx, obj);
		else
			len = 0;
	}
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return len;
}

JNIEXPORT void JNICALL
FUN(PDFObject_pushBoolean)(JNIEnv *env, jobject self, jboolean b)
{
	fz_context *ctx = get_context(env);
	pdf_obj *arr = from_PDFObject(env, self);

	if (!ctx || !arr) return;

	fz_try(ctx)
		pdf_array_push_bool(ctx, arr, b);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_pushInteger)(JNIEnv *env, jobject self, jint i)
{
	fz_context *ctx = get_context(env);
	pdf_obj *arr = from_PDFObject(env, self);

	if (!ctx || !arr) return;

	fz_try(ctx)
		pdf_array_push_int(ctx, arr, i);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_pushFloat)(JNIEnv *env, jobject self, jfloat f)
{
	fz_context *ctx = get_context(env);
	pdf_obj *arr = from_PDFObject(env, self);

	if (!ctx || !arr) return;

	fz_try(ctx)
		pdf_array_push_real(ctx, arr, f);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_pushString)(JNIEnv *env, jobject self, jstring jstr)
{
	fz_context *ctx = get_context(env);
	pdf_obj *arr = from_PDFObject(env, self);
	const char *str = NULL;

	if (!ctx || !arr) return;
	if (jstr)
	{
		str = (*env)->GetStringUTFChars(env, jstr, NULL);
		if (!str) return;
	}

	fz_try(ctx)
	{
		if (str)
			pdf_array_push_string(ctx, arr, str, strlen(str));
		else
			pdf_array_push(ctx, arr, PDF_NULL);
	}
	fz_always(ctx)
	{
		if (str)
			(*env)->ReleaseStringUTFChars(env, jstr, str);
	}
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT void JNICALL
FUN(PDFObject_pushPDFObject)(JNIEnv *env, jobject self, jobject jitem)
{
	fz_context *ctx = get_context(env);
	pdf_obj *arr = from_PDFObject(env, self);
	pdf_obj *item = from_PDFObject(env, jitem);

	if (!ctx || !arr) return;

	fz_try(ctx)
		pdf_array_push(ctx, arr, item);
	fz_always(ctx)
		pdf_drop_obj(ctx, item);
	fz_catch(ctx)
		jni_rethrow_void(env, ctx);
}

JNIEXPORT jstring JNICALL
FUN(PDFObject_toString)(JNIEnv *env, jobject self, jboolean tight, jboolean ascii)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject_safe(env, self);
	jstring string = NULL;
	char *s = NULL;
	size_t n = 0;

	if (!ctx || !obj) return NULL;

	fz_var(s);

	fz_try(ctx)
	{
		s = pdf_sprint_obj(ctx, NULL, 0, &n, obj, tight, ascii);
		string = (*env)->NewStringUTF(env, s);
	}
	fz_always(ctx)
		fz_free(ctx, s);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return string;
}

JNIEXPORT jboolean JNICALL
FUN(PDFObject_equals)(JNIEnv *env, jobject self, jobject jother)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject_safe(env, self);
	pdf_obj *other = NULL;
	int result = 0;

	if (!ctx) return JNI_FALSE;

	if (!(*env)->IsInstanceOf(env, jother, cls_PDFObject))
		return JNI_FALSE;

	other = from_PDFObject_safe(env, jother);

	fz_try(ctx)
		result = pdf_objcmp(ctx, obj, other);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return result == 0 ? JNI_TRUE : JNI_FALSE;
}

JNIEXPORT jboolean JNICALL
FUN(PDFObject_isFileSpec)(JNIEnv *env, jobject self)
{
	fz_context *ctx = get_context(env);
	pdf_obj *obj = from_PDFObject_safe(env, self);
	int result = 0;

	if (!ctx) return JNI_FALSE;

	fz_try(ctx)
		result = pdf_is_filespec(ctx, obj);
	fz_catch(ctx)
		jni_rethrow(env, ctx);

	return result ? JNI_TRUE : JNI_FALSE;
}