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Code Packages Releases Wiki Activity

Merge remote-tracking branch 'upstream/3.4' into merge-3.4

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This commit is contained in:
Alexander Alekhin
2020-01-28 13:16:03 +03:00
parent f856c964e2 223790e6fc
commit 560f85f8e5
40 changed files with 3133 additions and 740 deletions
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modules/java/generator/src/cpp/listconverters.cpp
+51
View File
@@ -57,3 +57,54 @@ void Copy_vector_String_to_List(JNIEnv* env, std::vector<cv::String>& vs, jobjec
env->DeleteLocalRef(element);
}
}
jobject vector_string_to_List(JNIEnv* env, std::vector<std::string>& vs) {
static jclass juArrayList = ARRAYLIST(env);
static jmethodID m_create = CONSTRUCTOR(env, juArrayList);
jmethodID m_add = LIST_ADD(env, juArrayList);
jobject result = env->NewObject(juArrayList, m_create, vs.size());
for (std::vector<std::string>::iterator it = vs.begin(); it != vs.end(); ++it) {
jstring element = env->NewStringUTF((*it).c_str());
env->CallBooleanMethod(result, m_add, element);
env->DeleteLocalRef(element);
}
return result;
}
std::vector<std::string> List_to_vector_string(JNIEnv* env, jobject list)
{
static jclass juArrayList = ARRAYLIST(env);
jmethodID m_size = LIST_SIZE(env,juArrayList);
jmethodID m_get = LIST_GET(env, juArrayList);
jint len = env->CallIntMethod(list, m_size);
std::vector<std::string> result;
result.reserve(len);
for (jint i=0; i<len; i++)
{
jstring element = static_cast<jstring>(env->CallObjectMethod(list, m_get, i));
const char* pchars = env->GetStringUTFChars(element, NULL);
result.push_back(pchars);
env->ReleaseStringUTFChars(element, pchars);
env->DeleteLocalRef(element);
}
return result;
}
void Copy_vector_string_to_List(JNIEnv* env, std::vector<std::string>& vs, jobject list)
{
static jclass juArrayList = ARRAYLIST(env);
jmethodID m_clear = LIST_CLEAR(env, juArrayList);
jmethodID m_add = LIST_ADD(env, juArrayList);
env->CallVoidMethod(list, m_clear);
for (std::vector<std::string>::iterator it = vs.begin(); it != vs.end(); ++it)
{
jstring element = env->NewStringUTF((*it).c_str());
env->CallBooleanMethod(list, m_add, element);
env->DeleteLocalRef(element);
}
}
modules/java/generator/src/cpp/listconverters.hpp
+7
View File
@@ -16,4 +16,11 @@ std::vector<cv::String> List_to_vector_String(JNIEnv* env, jobject list);
void Copy_vector_String_to_List(JNIEnv* env, std::vector<cv::String>& vs, jobject list);
jobject vector_string_to_List(JNIEnv* env, std::vector<std::string>& vs);
std::vector<std::string> List_to_vector_string(JNIEnv* env, jobject list);
void Copy_vector_string_to_List(JNIEnv* env, std::vector<std::string>& vs, jobject list);
#endif /* LISTCONVERTERS_HPP */