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//
// CVObjcUtil.h
//
// Created by Giles Payne on 2020/01/02.
//
#pragma once
#ifndef CV_EXPORTS
#ifdef __cplusplus
#define CV_EXPORTS __attribute__ ((visibility ("default")))
#else
#define CV_EXPORTS
#endif
#endif
#ifdef __cplusplus
#import <vector>
template <typename CV, typename OBJC> std::vector<CV> objc2cv(NSArray<OBJC*>* _Nonnull array, CV& (* _Nonnull converter)(OBJC* _Nonnull)) {
std::vector<CV> ret;
for (OBJC* obj in array) {
ret.push_back(converter(obj));
}
return ret;
}
#define OBJC2CV(CV_CLASS, OBJC_CLASS, v, a) \
std::vector<CV_CLASS> v = objc2cv<CV_CLASS, OBJC_CLASS>(a, [](OBJC_CLASS* objc) -> CV_CLASS& { return objc.nativeRef; })
#define OBJC2CV_CUSTOM(CV_CLASS, OBJC_CLASS, v, a, CONV) \
std::vector<CV_CLASS> v; \
for (OBJC_CLASS* obj in a) { \
CV_CLASS tmp = CONV(obj); \
v.push_back(tmp); \
}
template <typename CV, typename OBJC> void cv2objc(std::vector<CV>& vector, NSMutableArray<OBJC*>* _Nonnull array, OBJC* _Nonnull (* _Nonnull converter)(CV&)) {
[array removeAllObjects];
for (size_t index = 0; index < vector.size(); index++) {
[array addObject:converter(vector[index])];
}
}
#define CV2OBJC(CV_CLASS, OBJC_CLASS, v, a) \
cv2objc<CV_CLASS, OBJC_CLASS>(v, a, [](CV_CLASS& cv) -> OBJC_CLASS* { return [OBJC_CLASS fromNative:cv]; })
#define CV2OBJC_CUSTOM(CV_CLASS, OBJC_CLASS, v, a, UNCONV) \
[a removeAllObjects]; \
for (size_t index = 0; index < v.size(); index++) { \
OBJC_CLASS *tmp = UNCONV(v[index]); \
[a addObject:tmp]; \
}
template <typename CV, typename OBJC> std::vector<std::vector<CV>> objc2cv2(NSArray<NSArray<OBJC*>*>* _Nonnull array, CV& (* _Nonnull converter)(OBJC* _Nonnull)) {
std::vector<std::vector<CV>> ret;
for (NSArray<OBJC*>* innerArray in array) {
std::vector<CV> innerVector;
for (OBJC* obj in innerArray) {
innerVector.push_back(converter(obj));
}
ret.push_back(innerVector);
}
return ret;
}
#define OBJC2CV2(CV_CLASS, OBJC_CLASS, v, a) \
std::vector<std::vector<CV_CLASS>> v = objc2cv2<CV_CLASS, OBJC_CLASS>(a, [](OBJC_CLASS* objc) -> CV_CLASS& { return objc.nativeRef; })
template <typename CV, typename OBJC> void cv2objc2(std::vector<std::vector<CV>>& vector, NSMutableArray<NSMutableArray<OBJC*>*>* _Nonnull array, OBJC* _Nonnull (* _Nonnull converter)(CV&)) {
[array removeAllObjects];
for (size_t index = 0; index < vector.size(); index++) {
std::vector<CV>& innerVector = vector[index];
NSMutableArray<OBJC*>* innerArray = [NSMutableArray arrayWithCapacity:innerVector.size()];
for (size_t index2 = 0; index2 < innerVector.size(); index2++) {
[innerArray addObject:converter(innerVector[index2])];
}
[array addObject:innerArray];
}
}
#define CV2OBJC2(CV_CLASS, OBJC_CLASS, v, a) \
cv2objc2<CV_CLASS, OBJC_CLASS>(v, a, [](CV_CLASS& cv) -> OBJC_CLASS* { return [OBJC_CLASS fromNative:cv]; })
#endif
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