diff options
Diffstat (limited to 'platform/android/src/geojson/conversion/geometry.hpp')
-rw-r--r-- | platform/android/src/geojson/conversion/geometry.hpp | 184 |
1 files changed, 8 insertions, 176 deletions
diff --git a/platform/android/src/geojson/conversion/geometry.hpp b/platform/android/src/geojson/conversion/geometry.hpp index 48b9089692..242a68df02 100644 --- a/platform/android/src/geojson/conversion/geometry.hpp +++ b/platform/android/src/geojson/conversion/geometry.hpp @@ -1,192 +1,24 @@ #pragma once -#include "../../conversion/constant.hpp" -#include "../../conversion/collection.hpp" - #include <mapbox/geometry.hpp> +#include "../geometry.hpp" #include <jni/jni.hpp> -#include "../../jni/local_object.hpp" namespace mbgl { namespace android { namespace conversion { /** - * Turn mapbox::geometry type into Java GeoJson Geometries - */ -template <typename T> -class GeometryEvaluator { -public: - - jni::JNIEnv& env; - - /** - * static Point fromLngLat(double longitude,double latitude) - */ - jni::jobject* operator()(const mapbox::geometry::point<T> &geometry) const { - static jni::jclass* javaClass = jni::NewGlobalRef(env, &jni::FindClass(env, "com/mapbox/geojson/Point")).release(); - static jni::jmethodID* fromLngLat = &jni::GetStaticMethodID(env, *javaClass, "fromLngLat", "(DD)Lcom/mapbox/geojson/Point;"); - - return reinterpret_cast<jni::jobject*>(jni::CallStaticMethod<jni::jobject*>(env, *javaClass, *fromLngLat, geometry.x, geometry.y)); - } - - /** - * static LineString fromLngLats(double [][]) - */ - jni::jobject* operator()(const mapbox::geometry::line_string<T> &geometry) const { - static jni::jclass* javaClass = jni::NewGlobalRef(env, &jni::FindClass(env, "com/mapbox/geojson/LineString")).release(); - static jni::jmethodID* fromLngLats = &jni::GetStaticMethodID(env, *javaClass, "fromLngLats", "([[D)Lcom/mapbox/geojson/LineString;"); - - // Create - jni::LocalObject<jni::jarray<jni::jobject>> lngLatsArray = - jni::NewLocalObject(env, toLngLatArray(env, geometry)); - return reinterpret_cast<jni::jobject*>(jni::CallStaticMethod<jni::jobject*>(env, *javaClass, *fromLngLats, lngLatsArray.get())); - } - - /** - * static MultiPoint fromLngLats(double [][]) - */ - jni::jobject* operator()(const mapbox::geometry::multi_point<T> &geometry) const { - static jni::jclass* javaClass = jni::NewGlobalRef(env, &jni::FindClass(env, "com/mapbox/geojson/MultiPoint")).release(); - static jni::jmethodID* fromLngLats = &jni::GetStaticMethodID(env, *javaClass, "fromLngLats", "([[D)Lcom/mapbox/geojson/MultiPoint;"); - - // Create - jni::LocalObject<jni::jarray<jni::jobject>> lngLatsArray = - jni::NewLocalObject(env, toLngLatArray(env, geometry)); - return reinterpret_cast<jni::jobject*>(jni::CallStaticMethod<jni::jobject*>(env, *javaClass, *fromLngLats, lngLatsArray.get())); - } - - /** - * static Polygon fromLngLats(double [][][]) - */ - jni::jobject* operator()(const mapbox::geometry::polygon<T> &geometry) const { - static jni::jclass* javaClass = jni::NewGlobalRef(env, &jni::FindClass(env, "com/mapbox/geojson/Polygon")).release(); - static jni::jmethodID* fromLngLats = &jni::GetStaticMethodID(env, *javaClass, "fromLngLats", "([[[D)Lcom/mapbox/geojson/Polygon;"); - - // Create - jni::LocalObject<jni::jarray<jni::jobject>> shape = - jni::NewLocalObject(env, shapeToLngLatArray<>(env, geometry)); - return reinterpret_cast<jni::jobject*>(jni::CallStaticMethod<jni::jobject*>(env, *javaClass, *fromLngLats, shape.get())); - } - - /** - * static MultiLineString fromLngLats(double [][][]) - */ - jni::jobject* operator()(const mapbox::geometry::multi_line_string<T> &geometry) const { - static jni::jclass* javaClass = jni::NewGlobalRef(env, &jni::FindClass(env, "com/mapbox/geojson/MultiLineString")).release(); - static jni::jmethodID* fromLngLats = &jni::GetStaticMethodID(env, *javaClass, "fromLngLats", "([[[D)Lcom/mapbox/geojson/MultiLineString;"); - - // Create - jni::LocalObject<jni::jarray<jni::jobject>> shape = - jni::NewLocalObject(env,shapeToLngLatArray<>(env, geometry)); - return reinterpret_cast<jni::jobject*>(jni::CallStaticMethod<jni::jobject*>(env, *javaClass, *fromLngLats, shape.get())); - } - - /** - * MultiPolygon (double[][][][]) -> [[[D + Object array == [[[[D - */ - jni::jobject* operator()(const mapbox::geometry::multi_polygon<T> &geometry) const { - - static jni::jclass* arrayClass = jni::NewGlobalRef(env, &jni::FindClass(env, "[[[D")).release(); - jni::LocalObject<jni::jarray<jni::jobject>> jarray = - jni::NewLocalObject(env, &jni::NewObjectArray(env, geometry.size(), *arrayClass)); - - for(size_t i = 0; i < geometry.size(); i = i + 1) { - jni::LocalObject<jni::jarray<jni::jobject>> shape = - jni::NewLocalObject(env, shapeToLngLatArray<>(env, geometry.at(i))); - jni::SetObjectArrayElement(env, *jarray, i, shape.get()); - } - - // Create the MultiPolygon - static jni::jclass* javaClass = jni::NewGlobalRef(env, &jni::FindClass(env, "com/mapbox/geojson/MultiPolygon")).release(); - static jni::jmethodID* fromGeometries = &jni::GetStaticMethodID(env, *javaClass, "fromLngLats", "([[[[D)Lcom/mapbox/geojson/MultiPolygon;"); - return reinterpret_cast<jni::jobject*>(jni::CallStaticMethod<jni::jobject*>(env, *javaClass, *fromGeometries, jarray.get())); - } - - /** - * GeometryCollection - */ - jni::jobject* operator()(const mapbox::geometry::geometry_collection<T> &collection) const { - static jni::jclass* geometryClass = jni::NewGlobalRef(env, &jni::FindClass(env, "com/mapbox/geojson/Geometry")).release(); - jni::LocalObject<jni::jarray<jni::jobject>> jarray = jni::NewLocalObject(env, &jni::NewObjectArray(env, collection.size(), *geometryClass)); - - for(size_t i = 0; i < collection.size(); i = i + 1) { - auto& geometry = collection.at(i); - jni::LocalObject<jni::jobject> converted = jni::NewLocalObject(env, mapbox::geometry::geometry<T>::visit(geometry, *this)); - jni::SetObjectArrayElement(env, *jarray, i, converted.get()); - } - - // Turn into array list and create the GeometryCollection - static jni::jclass* javaClass = jni::NewGlobalRef(env, &jni::FindClass(env, "com/mapbox/geojson/GeometryCollection")).release(); - static jni::jmethodID* fromGeometries = &jni::GetStaticMethodID(env, *javaClass, "fromGeometries", "(Ljava/util/List;)Lcom/mapbox/geojson/GeometryCollection;"); - - jni::LocalObject<jni::jobject> list = jni::NewLocalObject(env, toArrayList<>(env, *jarray)); - return reinterpret_cast<jni::jobject*>(jni::CallStaticMethod<jni::jobject*>(env, *javaClass, *fromGeometries, list.get())); - } - -private: - - /** - * x, y -> jarray<jdouble> ([x,y]) - * - */ - static jni::jarray<jni::jdouble> *toLngLatArray(JNIEnv &env, double x, double y) { - jni::jarray<jni::jdouble> &jarray = jni::NewArray<jni::jdouble>(env, 2); - jni::jdouble array[] = {x, y}; - jni::SetArrayRegion(env, jarray, 0, 2, array); - return &jarray; - } - - /** - * vector<point<T>> -> jarray<jobject> -> [D + Object array == [[D (double[][]) - */ - static jni::jarray<jni::jobject>* toLngLatArray(JNIEnv &env, - std::vector<mapbox::geometry::point<T>> points) { - - static jni::jclass* javaClass = jni::NewGlobalRef(env, &jni::FindClass(env, "[D")).release(); - jni::jarray<jni::jobject >& jarray = jni::NewObjectArray(env, points.size(), *javaClass); - - for(size_t i = 0; i < points.size(); i = i + 1) { - mapbox::geometry::point<T> point = points.at(i); - jni::jarray<jni::jdouble> *lngLatArray = toLngLatArray(env, point.x, point.y); - jni::SetObjectArrayElement(env, jarray, i, lngLatArray); - } - - return &jarray; - } - - /** - * polygon<T> - * multi_line_string<T> -> jarray<jobject> -> [[D + Object array == [[[D (double[][][]) - */ - template <class SHAPE> - static jni::jarray<jni::jobject>* shapeToLngLatArray(JNIEnv &env, SHAPE value) { - static jni::jclass *javaClass = jni::NewGlobalRef(env, &jni::FindClass(env, "[[D")).release(); - jni::jarray<jni::jobject> &jarray = jni::NewObjectArray(env, value.size(), *javaClass); - - for (size_t i = 0; i < value.size(); i = i + 1) { - jni::LocalObject<jni::jarray<jni::jobject>> lngLatsArray = - jni::NewLocalObject(env, toLngLatArray(env, value.at(i))); - jni::SetObjectArrayElement(env, jarray, i, lngLatsArray.get()); - } - - return &jarray; - } -}; - -/** - * mapbox::geometry::geometry<T> -> Java GeoJson Geometry<> + * mapbox::geometry::geometry<T> -> Java GeoJson Geometry */ template <class T> -struct Converter<jni::jobject*, mapbox::geometry::geometry<T>> { - Result<jni::jobject*> operator()(jni::JNIEnv& env, const mapbox::geometry::geometry<T>& value) const { - GeometryEvaluator<double> evaluator { env } ; - jni::jobject* converted = mapbox::geometry::geometry<double>::visit(value, evaluator); - return {converted}; +struct Converter<jni::Object<android::geojson::Geometry>, mapbox::geometry::geometry<T>> { + Result<jni::Object<android::geojson::Geometry>> operator()(jni::JNIEnv& env, const mapbox::geometry::geometry<T>& value) const { + return { android::geojson::Geometry::New(env, value) }; } }; -} -} -} +} // conversion +} // android +} // mbgl |