67 lines
2.8 KiB
C++
67 lines
2.8 KiB
C++
#include "map_snapshot.hpp"
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#include "../bitmap.hpp"
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#include "../jni/collection.hpp"
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#include <memory>
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namespace mbgl {
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namespace android {
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MapSnapshot::MapSnapshot(float pixelRatio_, MapSnapshot::PointForFn pointForFn_, MapSnapshot::LatLngForFn latLngForFn_)
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: pixelRatio(pixelRatio_)
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, pointForFn(std::move(pointForFn_))
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, latLngForFn(std::move(latLngForFn_)) {
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}
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MapSnapshot::~MapSnapshot() = default;
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jni::Object<PointF> MapSnapshot::pixelForLatLng(jni::JNIEnv& env, jni::Object<LatLng> jLatLng) {
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ScreenCoordinate point = pointForFn(LatLng::getLatLng(env, jLatLng));
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return PointF::New(env, point.x * pixelRatio, point.y * pixelRatio);
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}
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jni::Object<LatLng> MapSnapshot::latLngForPixel(jni::JNIEnv& env, jni::Object<PointF>jPoint) {
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return LatLng::New(env, latLngForFn(PointF::getScreenCoordinate(env, jPoint)));
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}
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// Static methods //
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jni::Object<MapSnapshot> MapSnapshot::New(JNIEnv& env,
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PremultipliedImage&& image,
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float pixelRatio,
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std::vector<std::string> attributions,
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bool showLogo,
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mbgl::MapSnapshotter::PointForFn pointForFn,
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mbgl::MapSnapshotter::LatLngForFn latLngForFn) {
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// Create the bitmap
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auto bitmap = Bitmap::CreateBitmap(env, std::move(image));
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// Create the Mapsnapshot peers
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static auto constructor = javaClass.GetConstructor<jni::jlong, jni::Object<Bitmap>, jni::Array<jni::String>, jni::jboolean>(env);
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auto nativePeer = std::make_unique<MapSnapshot>(pixelRatio, pointForFn, latLngForFn);
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return javaClass.New(env, constructor, reinterpret_cast<jlong>(nativePeer.release()), bitmap, jni::Make<jni::Array<jni::String>>(env, attributions), (jni::jboolean) showLogo);
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}
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jni::Class<MapSnapshot> MapSnapshot::javaClass;
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void MapSnapshot::registerNative(jni::JNIEnv& env) {
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// Lookup the class
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MapSnapshot::javaClass = *jni::Class<MapSnapshot>::Find(env).NewGlobalRef(env).release();
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#define METHOD(MethodPtr, name) jni::MakeNativePeerMethod<decltype(MethodPtr), (MethodPtr)>(name)
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// Register the peer
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jni::RegisterNativePeer<MapSnapshot>(env, MapSnapshot::javaClass,
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"nativePtr",
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std::make_unique<MapSnapshot, JNIEnv&>,
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"initialize",
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"finalize",
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METHOD(&MapSnapshot::latLngForPixel, "latLngForPixel"),
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METHOD(&MapSnapshot::pixelForLatLng, "pixelForLatLng")
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);
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}
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} // namespace android
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} // namespace mbgl
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