Mercurial > cgi-bin > hgweb.cgi > JpegWasher
view src/name/blackcap/exifwasher/exiv2/native.cpp @ 7:65d14d44bc3f
Works, but the column layout numbers are WEIRD.
author | David Barts <n5jrn@me.com> |
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date | Fri, 10 Apr 2020 13:44:04 -0700 |
parents | efd9fe2d70d7 |
children | a59d84674fb0 |
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#include <jni.h> #include <exiv2/exiv2.hpp> #include <exception> #include <iostream> #include <iomanip> #include <cassert> /* Functions for class name_blackcap_exifwasher_exiv2_Image */ #ifndef _Included_name_blackcap_exifwasher_exiv2_Image #define _Included_name_blackcap_exifwasher_exiv2_Image #ifdef __cplusplus extern "C" { #endif /* * Utility function to get pointer field. */ jlong getPointer(JNIEnv *jEnv, jobject jThis) { return jEnv->GetLongField(jThis, jEnv->GetFieldID(jEnv->GetObjectClass(jThis), "pointer", "J")); } /* * Class: name_blackcap_exifwasher_exiv2_Image * Method: _ctor * Signature: (Ljava/lang/String;)J */ JNIEXPORT jlong JNICALL Java_name_blackcap_exifwasher_exiv2_Image__1ctor (JNIEnv *jEnv, jobject jThis, jstring path) { const char *cPath = jEnv->GetStringUTFChars(path, NULL); jlong ret = 0; try { ret = reinterpret_cast<jlong> (Exiv2::ImageFactory::open(cPath).release()); } catch (std::exception& e) { jEnv->ExceptionClear(); jclass ex = jEnv->FindClass("name/blackcap/exifwasher/exiv2/Exiv2Exception"); jEnv->ThrowNew(ex, e.what()); } jEnv->ReleaseStringUTFChars(path, cPath); return ret; } /* * Class: name_blackcap_exifwasher_exiv2_Image * Method: _writeMetadata * Signature: ()V */ JNIEXPORT void JNICALL Java_name_blackcap_exifwasher_exiv2_Image__1writeMetadata (JNIEnv *jEnv, jobject jThis) { Exiv2::Image *image = reinterpret_cast<Exiv2::Image *> (getPointer(jEnv, jThis)); if (jEnv->ExceptionCheck()) return; try { image->writeMetadata(); } catch (std::exception& e) { jEnv->ExceptionClear(); jclass ex = jEnv->FindClass("name/blackcap/exifwasher/exiv2/Exiv2Exception"); jEnv->ThrowNew(ex, e.what()); } } /* * Class: name_blackcap_exifwasher_exiv2_Image * Method: _getMetadata * Signature: ()J */ JNIEXPORT jlong JNICALL Java_name_blackcap_exifwasher_exiv2_Image__1getMetadata (JNIEnv *jEnv, jobject jThis) { Exiv2::Image *image = reinterpret_cast<Exiv2::Image *> (getPointer(jEnv, jThis)); if (jEnv->ExceptionCheck()) return 0; try { image->readMetadata(); } catch (std::exception& e) { jEnv->ExceptionClear(); jclass ex = jEnv->FindClass("name/blackcap/exifwasher/exiv2/Exiv2Exception"); jEnv->ThrowNew(ex, e.what()); return 0; } return reinterpret_cast<jlong> (&(image->exifData())); } /* * Class: name_blackcap_exifwasher_exiv2_Image * Method: _dtor * Signature: ()V */ JNIEXPORT void JNICALL Java_name_blackcap_exifwasher_exiv2_Image__1dtor (JNIEnv *jEnv, jobject jThis) { Exiv2::Image *image = reinterpret_cast<Exiv2::Image *> (getPointer(jEnv, jThis)); if (jEnv->ExceptionCheck()) return; delete image; } #ifdef __cplusplus } #endif #endif /* Header for class name_blackcap_exifwasher_exiv2_ExifData */ #ifndef _Included_name_blackcap_exifwasher_exiv2_ExifData #define _Included_name_blackcap_exifwasher_exiv2_ExifData #ifdef __cplusplus extern "C" { #endif /* * Class: name_blackcap_exifwasher_exiv2_ExifData * Method: _erase * Signature: (Ljava/lang/String;)V */ JNIEXPORT void JNICALL Java_name_blackcap_exifwasher_exiv2_ExifData__1erase (JNIEnv *jEnv, jobject jThis, jstring key) { Exiv2::ExifData *data = reinterpret_cast<Exiv2::ExifData *> (getPointer(jEnv, jThis)); if (jEnv->ExceptionCheck()) return; const char *cKey = jEnv->GetStringUTFChars(key, NULL); Exiv2::ExifData::iterator found = data->findKey(Exiv2::ExifKey(std::string(cKey))); try { data->erase(found); } catch (std::exception& e) { jEnv->ExceptionClear(); jclass ex = jEnv->FindClass("name/blackcap/exifwasher/exiv2/Exiv2Exception"); jEnv->ThrowNew(ex, e.what()); } jEnv->ReleaseStringUTFChars(key, cKey); } /* * Class: name_blackcap_exifwasher_exiv2_ExifData * Method: _value * Signature: (Ljava/lang/String;)Lname/blackcap/exifwasher/exiv2/ExifData/Value; */ JNIEXPORT jobject JNICALL Java_name_blackcap_exifwasher_exiv2_ExifData__1value (JNIEnv *jEnv, jobject jThis, jstring key) { Exiv2::ExifData *data = reinterpret_cast<Exiv2::ExifData *> (getPointer(jEnv, jThis)); if (jEnv->ExceptionCheck()) return NULL; const char *cKey = jEnv->GetStringUTFChars(key, NULL); Exiv2::ExifData::const_iterator found = data->findKey(Exiv2::ExifKey(std::string(cKey))); jEnv->ReleaseStringUTFChars(key, cKey); if (found == data->end()) { return NULL; } jclass klass = jEnv->FindClass("name/blackcap/exifwasher/exiv2/ExifData$Value"); if (jEnv->ExceptionCheck()) return NULL; jstring type = jEnv->NewStringUTF(found->typeName()); jstring value = jEnv->NewStringUTF(found->toString().c_str()); jmethodID method = jEnv->GetMethodID(klass, "<init>", "(Ljava/lang/String;Ljava/lang/String;)V"); if (jEnv->ExceptionCheck()) return NULL; return jEnv->NewObject(klass, method, type, value); } /* * Class: name_blackcap_exifwasher_exiv2_ExifData * Method: _keys * Signature: ()[Ljava/lang/String; */ JNIEXPORT jobjectArray JNICALL Java_name_blackcap_exifwasher_exiv2_ExifData__1keys (JNIEnv *jEnv, jobject jThis) { Exiv2::ExifData *data = reinterpret_cast<Exiv2::ExifData *> (getPointer(jEnv, jThis)); if (jEnv->ExceptionCheck()) return NULL; jclass klass = jEnv->FindClass("java/lang/String"); if (jEnv->ExceptionCheck()) return NULL; jobjectArray ret = jEnv->NewObjectArray(data->count(), klass, NULL); if (jEnv->ExceptionCheck()) return NULL; Exiv2::ExifData::const_iterator end = data->end(); jsize j = 0; for (Exiv2::ExifData::const_iterator i = data->begin(); i != end; ++i) { jEnv->SetObjectArrayElement(ret, j++, jEnv->NewStringUTF(i->key().c_str())); if (jEnv->ExceptionCheck()) break; } return ret; } #ifdef __cplusplus } #endif #endif