69 lines
2.4 KiB
C++
69 lines
2.4 KiB
C++
#include "multi_polygon.hpp"
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#include "polygon.hpp"
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#include "util.hpp"
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namespace mbgl {
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namespace android {
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namespace geojson {
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jni::Object<MultiPolygon> MultiPolygon::New(JNIEnv& env, const mbgl::MultiPolygon<double>& multiPolygon) {
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auto jarray = jni::Array<jni::Object<java::util::List>>::New(env, multiPolygon.size(), java::util::List::javaClass);
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for (size_t i = 0; i < multiPolygon.size(); i++) {
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auto& geometry = multiPolygon.at(i);
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auto jPolygon = asPointsListsList(env, geometry);
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jarray.Set(env, i, jPolygon);
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jni::DeleteLocalRef(env, jPolygon);
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}
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// Turn into array list
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auto jList = java::util::Arrays::asList(env, jarray);
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jni::DeleteLocalRef(env, jarray);
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// create the MultiPolygon
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static auto method = javaClass.GetStaticMethod<jni::Object<MultiPolygon> (jni::Object<java::util::List>)>(env, "fromLngLats");
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auto jMultiPolygon = javaClass.Call(env, method, jList);
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jni::DeleteLocalRef(env, jList);
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return jMultiPolygon;
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}
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mapbox::geojson::multi_polygon MultiPolygon::convert(jni::JNIEnv &env, jni::Object<MultiPolygon> jMultiPolygon) {
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mapbox::geojson::multi_polygon multiPolygon;
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if (jMultiPolygon) {
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auto jPointListsListList = MultiPolygon::coordinates(env, jMultiPolygon);
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auto jPointListsListArray = java::util::List::toArray<java::util::List>(env, jPointListsListList);
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auto size = jPointListsListArray.Length(env);
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multiPolygon.reserve(size);
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for (size_t i = 0; i < size; i++) {
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auto jPositionListsList = jPointListsListArray.Get(env, i);
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multiPolygon.push_back(Polygon::convert(env, jPositionListsList));
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jni::DeleteLocalRef(env, jPositionListsList);
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}
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jni::DeleteLocalRef(env, jPointListsListArray);
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jni::DeleteLocalRef(env, jPointListsListList);
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}
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return multiPolygon;
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}
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jni::Object<java::util::List> MultiPolygon::coordinates(jni::JNIEnv &env, jni::Object<MultiPolygon> jPolygon) {
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static auto method = MultiPolygon::javaClass.GetMethod<jni::Object<java::util::List> ()>(env, "coordinates");
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return jPolygon.Call(env, method);
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}
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void MultiPolygon::registerNative(jni::JNIEnv &env) {
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// Lookup the class
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javaClass = *jni::Class<MultiPolygon>::Find(env).NewGlobalRef(env).release();
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}
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jni::Class<MultiPolygon> MultiPolygon::javaClass;
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} // namespace geojson
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} // namespace android
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} // namespace mbgl
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