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native_map_view.cpp
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#include "native_map_view.hpp"
#include <cstdlib>
#include <ctime>
#include <cassert>
#include <memory>
#include <list>
#include <tuple>
#include <sys/system_properties.h>
#include <EGL/egl.h>
#include <android/native_window_jni.h>
#include <jni/jni.hpp>
#include <mbgl/map/backend_scope.hpp>
#include <mbgl/math/minmax.hpp>
#include <mbgl/util/constants.hpp>
#include <mbgl/util/event.hpp>
#include <mbgl/util/exception.hpp>
#include <mbgl/util/geo.hpp>
#include <mbgl/util/image.hpp>
#include <mbgl/util/shared_thread_pool.hpp>
#include <mbgl/util/logging.hpp>
#include <mbgl/util/platform.hpp>
#include <mbgl/util/projection.hpp>
#include <mbgl/style/image.hpp>
#include <mbgl/style/filter.hpp>
// Java -> C++ conversion
#include "style/android_conversion.hpp"
#include <mbgl/style/conversion.hpp>
#include <mbgl/style/conversion/filter.hpp>
// C++ -> Java conversion
#include "conversion/conversion.hpp"
#include "conversion/collection.hpp"
#include "style/conversion/filter.hpp"
#include "geojson/conversion/feature.hpp"
#include "jni.hpp"
#include "attach_env.hpp"
#include "bitmap.hpp"
#include "run_loop_impl.hpp"
#include "java/util.hpp"
#include "geometry/lat_lng_bounds.hpp"
#include "map/camera_position.hpp"
namespace mbgl {
namespace android {
NativeMapView::NativeMapView(jni::JNIEnv& _env,
jni::Object<NativeMapView> _obj,
jni::Object<FileSource> jFileSource,
jni::jfloat _pixelRatio,
jni::String _programCacheDir,
jni::jint _availableProcessors,
jni::jlong _totalMemory)
: javaPeer(_obj.NewWeakGlobalRef(_env)),
pixelRatio(_pixelRatio),
availableProcessors(_availableProcessors),
totalMemory(_totalMemory),
threadPool(sharedThreadPool()) {
// Get a reference to the JavaVM for callbacks
if (_env.GetJavaVM(&vm) < 0) {
_env.ExceptionDescribe();
return;
}
// Create the core map
map = std::make_unique<mbgl::Map>(
*this, mbgl::Size{ static_cast<uint32_t>(width), static_cast<uint32_t>(height) },
pixelRatio, mbgl::android::FileSource::getDefaultFileSource(_env, jFileSource), *threadPool,
MapMode::Continuous, GLContextMode::Unique, ConstrainMode::HeightOnly,
ViewportMode::Default, jni::Make<std::string>(_env, _programCacheDir));
recalculateSourceTileCacheSize();
}
void NativeMapView::recalculateSourceTileCacheSize() {
//Calculate a fitting cache size based on device parameters
float zoomFactor = map->getMaxZoom() - map->getMinZoom() + 1;
float cpuFactor = availableProcessors;
float memoryFactor = static_cast<float>(totalMemory) / 1000.0f / 1000.0f / 1000.0f;
float sizeFactor = (static_cast<float>(map->getSize().width) / mbgl::util::tileSize) *
(static_cast<float>(map->getSize().height) / mbgl::util::tileSize);
map->setSourceTileCacheSize(zoomFactor * cpuFactor * memoryFactor * sizeFactor * 0.5f);
}
/**
* Called through NativeMapView#destroy()
*/
NativeMapView::~NativeMapView() {
_terminateContext();
_destroySurface();
_terminateDisplay();
map.reset();
vm = nullptr;
}
/**
* From mbgl::View
*/
void NativeMapView::bind() {
setFramebufferBinding(0);
setViewportSize(getFramebufferSize());
}
/**
* From mbgl::Backend.
*/
gl::ProcAddress NativeMapView::initializeExtension(const char* name) {
return eglGetProcAddress(name);
}
void NativeMapView::activate() {
if (active++) {
return;
}
oldDisplay = eglGetCurrentDisplay();
oldReadSurface = eglGetCurrentSurface(EGL_READ);
oldDrawSurface = eglGetCurrentSurface(EGL_DRAW);
oldContext = eglGetCurrentContext();
assert(vm != nullptr);
if ((display != EGL_NO_DISPLAY) && (surface != EGL_NO_SURFACE) && (context != EGL_NO_CONTEXT)) {
if (!eglMakeCurrent(display, surface, surface, context)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglMakeCurrent() returned error %d",
eglGetError());
throw std::runtime_error("eglMakeCurrent() failed");
}
if (!eglSwapInterval(display, 0)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglSwapInterval() returned error %d", eglGetError());
throw std::runtime_error("eglSwapInterval() failed");
}
} else {
mbgl::Log::Info(mbgl::Event::Android, "Not activating as we are not ready");
}
}
/**
* From mbgl::Backend.
*/
void NativeMapView::deactivate() {
if (--active) {
return;
}
assert(vm != nullptr);
if (oldContext != context && oldContext != EGL_NO_CONTEXT) {
if (!eglMakeCurrent(oldDisplay, oldDrawSurface, oldReadSurface, oldContext)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglMakeCurrent() returned error %d",
eglGetError());
throw std::runtime_error("eglMakeCurrent() failed");
}
} else if (display != EGL_NO_DISPLAY) {
if (!eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglMakeCurrent(EGL_NO_CONTEXT) returned error %d",
eglGetError());
throw std::runtime_error("eglMakeCurrent() failed");
}
} else {
mbgl::Log::Info(mbgl::Event::Android, "Not deactivating as we are not ready");
}
}
/**
* From mbgl::Backend. Callback to java NativeMapView#onInvalidate().
*
* May be called from any thread
*/
void NativeMapView::invalidate() {
android::UniqueEnv _env = android::AttachEnv();
static auto onInvalidate = javaClass.GetMethod<void ()>(*_env, "onInvalidate");
javaPeer->Call(*_env, onInvalidate);
}
/**
* From mbgl::Backend. Callback to java NativeMapView#onMapChanged(int).
*
* May be called from any thread
*/
void NativeMapView::notifyMapChange(mbgl::MapChange change) {
assert(vm != nullptr);
android::UniqueEnv _env = android::AttachEnv();
static auto onMapChanged = javaClass.GetMethod<void (int)>(*_env, "onMapChanged");
javaPeer->Call(*_env, onMapChanged, (int) change);
}
void NativeMapView::onCameraWillChange(MapObserver::CameraChangeMode mode) {
if (mode == MapObserver::CameraChangeMode::Immediate) {
notifyMapChange(MapChange::MapChangeRegionWillChange);
} else {
notifyMapChange(MapChange::MapChangeRegionWillChangeAnimated);
}
}
void NativeMapView::onCameraIsChanging() {
notifyMapChange(MapChange::MapChangeRegionIsChanging);
}
void NativeMapView::onCameraDidChange(MapObserver::CameraChangeMode mode) {
if (mode == MapObserver::CameraChangeMode::Immediate) {
notifyMapChange(MapChange::MapChangeRegionDidChange);
} else {
notifyMapChange(MapChange::MapChangeRegionDidChangeAnimated);
}
}
void NativeMapView::onWillStartLoadingMap() {
notifyMapChange(MapChange::MapChangeWillStartLoadingMap);
}
void NativeMapView::onDidFinishLoadingMap() {
notifyMapChange(MapChange::MapChangeDidFinishLoadingMap);
}
void NativeMapView::onDidFailLoadingMap(std::exception_ptr) {
notifyMapChange(MapChange::MapChangeDidFailLoadingMap);
}
void NativeMapView::onWillStartRenderingFrame() {
notifyMapChange(MapChange::MapChangeWillStartRenderingFrame);
}
void NativeMapView::onDidFinishRenderingFrame(MapObserver::RenderMode mode) {
if (mode == MapObserver::RenderMode::Partial) {
notifyMapChange(MapChange::MapChangeDidFinishRenderingFrame);
} else {
notifyMapChange(MapChange::MapChangeDidFinishRenderingFrameFullyRendered);
}
}
void NativeMapView::onWillStartRenderingMap() {
notifyMapChange(MapChange::MapChangeWillStartRenderingMap);
}
void NativeMapView::onDidFinishRenderingMap(MapObserver::RenderMode mode) {
if (mode == MapObserver::RenderMode::Partial) {
notifyMapChange(MapChange::MapChangeDidFinishRenderingMap);
} else {
notifyMapChange(MapChange::MapChangeDidFinishRenderingMapFullyRendered);
}
}
void NativeMapView::onDidFinishLoadingStyle() {
notifyMapChange(MapChange::MapChangeDidFinishLoadingStyle);
}
void NativeMapView::onSourceChanged(mbgl::style::Source&) {
notifyMapChange(MapChange::MapChangeSourceDidChange);
}
// JNI Methods //
void NativeMapView::initializeDisplay(jni::JNIEnv&) {
_initializeDisplay();
}
void NativeMapView::terminateDisplay(jni::JNIEnv&) {
_terminateDisplay();
}
void NativeMapView::initializeContext(jni::JNIEnv&) {
_initializeContext();
}
void NativeMapView::terminateContext(jni::JNIEnv&) {
_terminateContext();
}
void NativeMapView::createSurface(jni::JNIEnv& env, jni::Object<> _surface) {
_createSurface(ANativeWindow_fromSurface(&env, jni::Unwrap(*_surface)));
}
void NativeMapView::destroySurface(jni::JNIEnv&) {
_destroySurface();
}
void NativeMapView::render(jni::JNIEnv& env) {
BackendScope guard(*this);
if (framebufferSizeChanged) {
setViewportSize(getFramebufferSize());
framebufferSizeChanged = false;
}
map->render(*this);
if(snapshot){
snapshot = false;
// take snapshot
auto image = readFramebuffer(getFramebufferSize());
auto bitmap = Bitmap::CreateBitmap(env, std::move(image));
// invoke Mapview#OnSnapshotReady
android::UniqueEnv _env = android::AttachEnv();
static auto onSnapshotReady = javaClass.GetMethod<void (jni::Object<Bitmap>)>(*_env, "onSnapshotReady");
javaPeer->Call(*_env, onSnapshotReady, bitmap);
}
if ((display != EGL_NO_DISPLAY) && (surface != EGL_NO_SURFACE)) {
if (!eglSwapBuffers(display, surface)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglSwapBuffers() returned error %d",
eglGetError());
throw std::runtime_error("eglSwapBuffers() failed");
}
updateFps();
} else {
mbgl::Log::Info(mbgl::Event::Android, "Not swapping as we are not ready");
}
}
void NativeMapView::update(jni::JNIEnv&) {
invalidate();
}
void NativeMapView::resizeView(jni::JNIEnv&, int w, int h) {
width = util::max(64, w);
height = util::max(64, h);
map->setSize({ static_cast<uint32_t>(width), static_cast<uint32_t>(height) });
recalculateSourceTileCacheSize();
}
void NativeMapView::resizeFramebuffer(jni::JNIEnv&, int w, int h) {
fbWidth = w;
fbHeight = h;
framebufferSizeChanged = true;
invalidate();
}
jni::String NativeMapView::getStyleUrl(jni::JNIEnv& env) {
return jni::Make<jni::String>(env, map->getStyleURL());
}
void NativeMapView::setStyleUrl(jni::JNIEnv& env, jni::String url) {
map->setStyleURL(jni::Make<std::string>(env, url));
}
jni::String NativeMapView::getStyleJson(jni::JNIEnv& env) {
return jni::Make<jni::String>(env, map->getStyleJSON());
}
void NativeMapView::setStyleJson(jni::JNIEnv& env, jni::String json) {
map->setStyleJSON(jni::Make<std::string>(env, json));
}
void NativeMapView::setLatLngBounds(jni::JNIEnv& env, jni::Object<mbgl::android::LatLngBounds> jBounds) {
if (jBounds) {
map->setLatLngBounds(mbgl::android::LatLngBounds::getLatLngBounds(env, jBounds));
} else {
map->setLatLngBounds(mbgl::LatLngBounds::world());
}
}
void NativeMapView::cancelTransitions(jni::JNIEnv&) {
map->cancelTransitions();
}
void NativeMapView::setGestureInProgress(jni::JNIEnv&, jni::jboolean inProgress) {
map->setGestureInProgress(inProgress);
}
void NativeMapView::moveBy(jni::JNIEnv&, jni::jdouble dx, jni::jdouble dy, jni::jlong duration) {
mbgl::AnimationOptions animationOptions;
if (duration > 0) {
animationOptions.duration.emplace(mbgl::Milliseconds(duration));
animationOptions.easing.emplace(mbgl::util::UnitBezier { 0, 0.3, 0.6, 1.0 });
}
map->moveBy({dx, dy}, animationOptions);
}
void NativeMapView::jumpTo(jni::JNIEnv&, jni::jdouble angle, jni::jdouble latitude, jni::jdouble longitude, jni::jdouble pitch, jni::jdouble zoom) {
mbgl::CameraOptions options;
if (angle != -1) {
options.angle = (angle - 180 * M_PI) / 180;
}
options.center = mbgl::LatLng(latitude, longitude);
options.padding = insets;
if (pitch != -1) {
options.pitch = pitch * M_PI / 180;
}
if (zoom != -1) {
options.zoom = zoom;
}
map->jumpTo(options);
}
void NativeMapView::easeTo(jni::JNIEnv&, jni::jdouble angle, jni::jdouble latitude, jni::jdouble longitude, jni::jlong duration, jni::jdouble pitch, jni::jdouble zoom, jni::jboolean easing) {
mbgl::CameraOptions cameraOptions;
if (angle != -1) {
cameraOptions.angle = (angle - 180 * M_PI) / 180;
}
cameraOptions.center = mbgl::LatLng(latitude, longitude);
cameraOptions.padding = insets;
if (pitch != -1) {
cameraOptions.pitch = pitch * M_PI / 180;
}
if (zoom != -1) {
cameraOptions.zoom = zoom;
}
mbgl::AnimationOptions animationOptions;
animationOptions.duration.emplace(mbgl::Milliseconds(duration));
if (!easing) {
// add a linear interpolator instead of easing
animationOptions.easing.emplace(mbgl::util::UnitBezier { 0, 0, 1, 1 });
}
map->easeTo(cameraOptions, animationOptions);
}
void NativeMapView::flyTo(jni::JNIEnv&, jni::jdouble angle, jni::jdouble latitude, jni::jdouble longitude, jni::jlong duration, jni::jdouble pitch, jni::jdouble zoom) {
mbgl::CameraOptions cameraOptions;
if (angle != -1) {
cameraOptions.angle = (angle - 180 * M_PI / 180);
}
cameraOptions.center = mbgl::LatLng(latitude, longitude);
cameraOptions.padding = insets;
if (pitch != -1) {
cameraOptions.pitch = pitch * M_PI / 180;
}
if (zoom != -1) {
cameraOptions.zoom = zoom;
}
mbgl::AnimationOptions animationOptions;
animationOptions.duration.emplace(mbgl::Milliseconds(duration));
map->flyTo(cameraOptions, animationOptions);
}
jni::Object<LatLng> NativeMapView::getLatLng(JNIEnv& env) {
return LatLng::New(env, map->getLatLng(insets));
}
void NativeMapView::setLatLng(jni::JNIEnv&, jni::jdouble latitude, jni::jdouble longitude, jni::jlong duration) {
map->setLatLng(mbgl::LatLng(latitude, longitude), insets, mbgl::AnimationOptions{mbgl::Milliseconds(duration)});
}
jni::Object<CameraPosition> NativeMapView::getCameraForLatLngBounds(jni::JNIEnv& env, jni::Object<LatLngBounds> jBounds) {
return CameraPosition::New(env, map->cameraForLatLngBounds(mbgl::android::LatLngBounds::getLatLngBounds(env, jBounds), insets));
}
void NativeMapView::setReachability(jni::JNIEnv&, jni::jboolean reachable) {
if (reachable) {
mbgl::NetworkStatus::Reachable();
}
}
void NativeMapView::resetPosition(jni::JNIEnv&) {
map->resetPosition();
}
jni::jdouble NativeMapView::getPitch(jni::JNIEnv&) {
return map->getPitch();
}
void NativeMapView::setPitch(jni::JNIEnv&, jni::jdouble pitch, jni::jlong duration) {
map->setPitch(pitch, mbgl::AnimationOptions{mbgl::Milliseconds(duration)});
}
void NativeMapView::setZoom(jni::JNIEnv&, jni::jdouble zoom, jni::jdouble x, jni::jdouble y, jni::jlong duration) {
map->setZoom(zoom, mbgl::ScreenCoordinate{x,y}, mbgl::AnimationOptions{mbgl::Milliseconds(duration)});
}
jni::jdouble NativeMapView::getZoom(jni::JNIEnv&) {
return map->getZoom();
}
void NativeMapView::resetZoom(jni::JNIEnv&) {
map->resetZoom();
}
void NativeMapView::setMinZoom(jni::JNIEnv&, jni::jdouble zoom) {
map->setMinZoom(zoom);
recalculateSourceTileCacheSize();
}
jni::jdouble NativeMapView::getMinZoom(jni::JNIEnv&) {
return map->getMinZoom();
}
void NativeMapView::setMaxZoom(jni::JNIEnv&, jni::jdouble zoom) {
map->setMaxZoom(zoom);
recalculateSourceTileCacheSize();
}
jni::jdouble NativeMapView::getMaxZoom(jni::JNIEnv&) {
return map->getMaxZoom();
}
void NativeMapView::rotateBy(jni::JNIEnv&, jni::jdouble sx, jni::jdouble sy, jni::jdouble ex, jni::jdouble ey, jni::jlong duration) {
mbgl::ScreenCoordinate first(sx, sy);
mbgl::ScreenCoordinate second(ex, ey);
map->rotateBy(first, second, mbgl::AnimationOptions{mbgl::Milliseconds(duration)});
}
void NativeMapView::setBearing(jni::JNIEnv&, jni::jdouble degrees, jni::jlong duration) {
map->setBearing(degrees, mbgl::AnimationOptions{mbgl::Milliseconds(duration)});
}
void NativeMapView::setBearingXY(jni::JNIEnv&, jni::jdouble degrees, jni::jdouble cx, jni::jdouble cy, jni::jlong duration) {
mbgl::ScreenCoordinate center(cx, cy);
map->setBearing(degrees, center, mbgl::AnimationOptions{mbgl::Milliseconds(duration)});
}
jni::jdouble NativeMapView::getBearing(jni::JNIEnv&) {
return map->getBearing();
}
void NativeMapView::resetNorth(jni::JNIEnv&) {
map->resetNorth();
}
void NativeMapView::setVisibleCoordinateBounds(JNIEnv& env, jni::Array<jni::Object<LatLng>> coordinates, jni::Object<RectF> padding, jdouble direction, jni::jlong duration) {
NullCheck(env, &coordinates);
std::size_t count = coordinates.Length(env);
std::vector<mbgl::LatLng> latLngs;
latLngs.reserve(count);
for (std::size_t i = 0; i < count; i++) {
auto latLng = coordinates.Get(env, i);
latLngs.push_back(LatLng::getLatLng(env, latLng));
jni::DeleteLocalRef(env, latLng);
}
mbgl::EdgeInsets mbglInsets = { RectF::getTop(env, padding), RectF::getLeft(env, padding), RectF::getBottom(env, padding), RectF::getRight(env, padding) };
mbgl::CameraOptions cameraOptions = map->cameraForLatLngs(latLngs, mbglInsets);
if (direction >= 0) {
// convert from degrees to radians
cameraOptions.angle = (-direction * M_PI) / 180;
}
mbgl::AnimationOptions animationOptions;
if (duration > 0) {
animationOptions.duration.emplace(mbgl::Milliseconds(duration));
// equivalent to kCAMediaTimingFunctionDefault in iOS
animationOptions.easing.emplace(mbgl::util::UnitBezier { 0.25, 0.1, 0.25, 0.1 });
}
map->easeTo(cameraOptions, animationOptions);
}
void NativeMapView::setContentPadding(JNIEnv&, double top, double left, double bottom, double right) {
insets = {top, left, bottom, right};
}
void NativeMapView::scheduleSnapshot(jni::JNIEnv&) {
snapshot = true;
}
void NativeMapView::enableFps(jni::JNIEnv&, jni::jboolean enable) {
fpsEnabled = enable;
}
jni::Object<CameraPosition> NativeMapView::getCameraPosition(jni::JNIEnv& env) {
return CameraPosition::New(env, map->getCameraOptions(insets));
}
void NativeMapView::updateMarker(jni::JNIEnv& env, jni::jlong markerId, jni::jdouble lat, jni::jdouble lon, jni::String jid) {
if (markerId == -1) {
return;
}
std::string iconId = jni::Make<std::string>(env, jid);
// Because Java only has int, not unsigned int, we need to bump the annotation id up to a long.
map->updateAnnotation(markerId, mbgl::SymbolAnnotation { mbgl::Point<double>(lon, lat), iconId });
}
jni::Array<jni::jlong> NativeMapView::addMarkers(jni::JNIEnv& env, jni::Array<jni::Object<Marker>> jmarkers) {
jni::NullCheck(env, &jmarkers);
std::size_t len = jmarkers.Length(env);
std::vector<jni::jlong> ids;
ids.reserve(len);
for (std::size_t i = 0; i < len; i++) {
jni::Object<Marker> marker = jmarkers.Get(env, i);
ids.push_back(map->addAnnotation(mbgl::SymbolAnnotation {
Marker::getPosition(env, marker),
Marker::getIconId(env, marker)
}));
jni::DeleteLocalRef(env, marker);
}
auto result = jni::Array<jni::jlong>::New(env, len);
result.SetRegion<std::vector<jni::jlong>>(env, 0, ids);
return result;
}
void NativeMapView::onLowMemory(JNIEnv&) {
map->onLowMemory();
}
using DebugOptions = mbgl::MapDebugOptions;
void NativeMapView::setDebug(JNIEnv&, jni::jboolean debug) {
DebugOptions debugOptions = debug ? DebugOptions::TileBorders | DebugOptions::ParseStatus | DebugOptions::Collision
: DebugOptions::NoDebug;
map->setDebug(debugOptions);
fpsEnabled = debug;
}
void NativeMapView::cycleDebugOptions(JNIEnv&) {
map->cycleDebugOptions();
fpsEnabled = map->getDebug() != DebugOptions::NoDebug;
}
jni::jboolean NativeMapView::getDebug(JNIEnv&) {
return map->getDebug() != DebugOptions::NoDebug;
}
jni::jboolean NativeMapView::isFullyLoaded(JNIEnv&) {
return map->isFullyLoaded();
}
jni::jdouble NativeMapView::getMetersPerPixelAtLatitude(JNIEnv&, jni::jdouble lat, jni::jdouble zoom) {
return mbgl::Projection::getMetersPerPixelAtLatitude(lat, zoom);
}
jni::Object<ProjectedMeters> NativeMapView::projectedMetersForLatLng(JNIEnv& env, jni::jdouble latitude, jni::jdouble longitude) {
mbgl::ProjectedMeters projectedMeters = mbgl::Projection::projectedMetersForLatLng(mbgl::LatLng(latitude, longitude));
return ProjectedMeters::New(env, projectedMeters.northing(), projectedMeters.easting());
}
jni::Object<LatLng> NativeMapView::latLngForProjectedMeters(JNIEnv& env, jdouble northing, jdouble easting) {
return LatLng::New(env, mbgl::Projection::latLngForProjectedMeters(mbgl::ProjectedMeters(northing, easting)));
}
jni::Object<PointF> NativeMapView::pixelForLatLng(JNIEnv& env, jdouble latitude, jdouble longitude) {
mbgl::ScreenCoordinate pixel = map->pixelForLatLng(mbgl::LatLng(latitude, longitude));
return PointF::New(env, static_cast<float>(pixel.x), static_cast<float>(pixel.y));
}
jni::Object<LatLng> NativeMapView::latLngForPixel(JNIEnv& env, jfloat x, jfloat y) {
return LatLng::New(env, map->latLngForPixel(mbgl::ScreenCoordinate(x, y)));
}
jni::Array<jlong> NativeMapView::addPolylines(JNIEnv& env, jni::Array<jni::Object<Polyline>> polylines) {
NullCheck(env, &polylines);
std::size_t len = polylines.Length(env);
std::vector<jni::jlong> ids;
ids.reserve(len);
for (std::size_t i = 0; i < len; i++) {
auto polyline = polylines.Get(env, i);
mbgl::LineAnnotation annotation = Polyline::toAnnotation(env, polyline);
ids.push_back(map->addAnnotation(annotation));
jni::DeleteLocalRef(env, polyline);
}
auto result = jni::Array<jni::jlong>::New(env, len);
result.SetRegion<std::vector<jni::jlong>>(env, 0, ids);
return result;
}
jni::Array<jlong> NativeMapView::addPolygons(JNIEnv& env, jni::Array<jni::Object<Polygon>> polygons) {
NullCheck(env, &polygons);
std::size_t len = polygons.Length(env);
std::vector<jni::jlong> ids;
ids.reserve(len);
for (std::size_t i = 0; i < len; i++) {
auto polygon = polygons.Get(env, i);
mbgl::FillAnnotation annotation = Polygon::toAnnotation(env, polygon);
ids.push_back(map->addAnnotation(annotation));
jni::DeleteLocalRef(env, polygon);
}
auto result = jni::Array<jni::jlong>::New(env, len);
result.SetRegion<std::vector<jni::jlong>>(env, 0, ids);
return result;
}
//TODO: Move to Polyline class and make native peer
void NativeMapView::updatePolyline(JNIEnv& env, jlong polylineId, jni::Object<Polyline> polyline) {
mbgl::LineAnnotation annotation = Polyline::toAnnotation(env, polyline);
map->updateAnnotation(polylineId, annotation);
}
//TODO: Move to Polygon class and make native peer
void NativeMapView::updatePolygon(JNIEnv& env, jlong polygonId, jni::Object<Polygon> polygon) {
mbgl::FillAnnotation annotation = Polygon::toAnnotation(env, polygon);
map->updateAnnotation(polygonId, annotation);
}
void NativeMapView::removeAnnotations(JNIEnv& env, jni::Array<jlong> ids) {
NullCheck(env, &ids);
std::size_t len = ids.Length(env);
auto elements = jni::GetArrayElements(env, *ids);
jlong* jids = std::get<0>(elements).get();
for (std::size_t i = 0; i < len; i++) {
if(jids[i] == -1L) {
continue;
}
map->removeAnnotation(jids[i]);
}
}
void NativeMapView::addAnnotationIcon(JNIEnv& env, jni::String symbol, jint w, jint h, jfloat scale, jni::Array<jbyte> jpixels) {
const std::string symbolName = jni::Make<std::string>(env, symbol);
NullCheck(env, &jpixels);
std::size_t size = jpixels.Length(env);
mbgl::PremultipliedImage premultipliedImage({ static_cast<uint32_t>(w), static_cast<uint32_t>(h) });
if (premultipliedImage.bytes() != uint32_t(size)) {
throw mbgl::util::SpriteImageException("Sprite image pixel count mismatch");
}
jni::GetArrayRegion(env, *jpixels, 0, size, reinterpret_cast<jbyte*>(premultipliedImage.data.get()));
map->addAnnotationImage(symbolName,
std::make_unique<mbgl::style::Image>(std::move(premultipliedImage), float(scale)));
}
jdouble NativeMapView::getTopOffsetPixelsForAnnotationSymbol(JNIEnv& env, jni::String symbolName) {
return map->getTopOffsetPixelsForAnnotationImage(jni::Make<std::string>(env, symbolName));
}
jlong NativeMapView::getTransitionDuration(JNIEnv&) {
const auto transitionOptions = map->getTransitionOptions();
return std::chrono::duration_cast<std::chrono::milliseconds>(transitionOptions.duration.value_or(mbgl::Duration::zero())).count();
}
void NativeMapView::setTransitionDuration(JNIEnv&, jlong duration) {
auto transitionOptions = map->getTransitionOptions();
transitionOptions.duration.emplace(mbgl::Milliseconds(duration));
map->setTransitionOptions(transitionOptions);
}
jlong NativeMapView::getTransitionDelay(JNIEnv&) {
const auto transitionOptions = map->getTransitionOptions();
return std::chrono::duration_cast<std::chrono::milliseconds>(transitionOptions.delay.value_or(mbgl::Duration::zero())).count();
}
void NativeMapView::setTransitionDelay(JNIEnv&, jlong delay) {
auto transitionOptions = map->getTransitionOptions();
transitionOptions.delay.emplace(mbgl::Milliseconds(delay));
map->setTransitionOptions(transitionOptions);
}
jni::Array<jlong> NativeMapView::queryPointAnnotations(JNIEnv& env, jni::Object<RectF> rect) {
using namespace mbgl::style;
using namespace mbgl::style::conversion;
// Convert input
mbgl::ScreenBox box = {
{ RectF::getLeft(env, rect), RectF::getTop(env, rect) },
{ RectF::getRight(env, rect), RectF::getBottom(env, rect) },
};
// Assume only points for now
mbgl::AnnotationIDs ids = map->queryPointAnnotations(box);
// Convert result
std::vector<jlong> longIds(ids.begin(), ids.end());
auto result = jni::Array<jni::jlong>::New(env, ids.size());
result.SetRegion<std::vector<jni::jlong>>(env, 0, longIds);
return result;
}
jni::Array<jni::Object<geojson::Feature>> NativeMapView::queryRenderedFeaturesForPoint(JNIEnv& env, jni::jfloat x, jni::jfloat y,
jni::Array<jni::String> layerIds,
jni::Array<jni::Object<>> jfilter) {
using namespace mbgl::android::conversion;
using namespace mbgl::android::geojson;
mbgl::optional<std::vector<std::string>> layers;
if (layerIds != nullptr && layerIds.Length(env) > 0) {
layers = android::conversion::toVector(env, layerIds);
}
mapbox::geometry::point<double> point = {x, y};
return *convert<jni::Array<jni::Object<Feature>>, std::vector<mbgl::Feature>>(env, map->queryRenderedFeatures(point, { layers, toFilter(env, jfilter) }));
}
jni::Array<jni::Object<geojson::Feature>> NativeMapView::queryRenderedFeaturesForBox(JNIEnv& env, jni::jfloat left, jni::jfloat top,
jni::jfloat right, jni::jfloat bottom, jni::Array<jni::String> layerIds,
jni::Array<jni::Object<>> jfilter) {
using namespace mbgl::android::conversion;
using namespace mbgl::android::geojson;
mbgl::optional<std::vector<std::string>> layers;
if (layerIds != nullptr && layerIds.Length(env) > 0) {
layers = toVector(env, layerIds);
}
mapbox::geometry::box<double> box = {
mapbox::geometry::point<double>{ left, top},
mapbox::geometry::point<double>{ right, bottom }
};
return *convert<jni::Array<jni::Object<Feature>>, std::vector<mbgl::Feature>>(env, map->queryRenderedFeatures(box, { layers, toFilter(env, jfilter) }));
}
jni::Array<jni::Object<Layer>> NativeMapView::getLayers(JNIEnv& env) {
// Get the core layers
std::vector<style::Layer*> layers = map->getLayers();
// Convert
jni::Array<jni::Object<Layer>> jLayers = jni::Array<jni::Object<Layer>>::New(env, layers.size(), Layer::javaClass);
int index = 0;
for (auto layer : layers) {
auto jLayer = jni::Object<Layer>(createJavaLayerPeer(env, *map, *layer));
jLayers.Set(env, index, jLayer);
jni::DeleteLocalRef(env, jLayer);
index++;
}
return jLayers;
}
jni::Object<Layer> NativeMapView::getLayer(JNIEnv& env, jni::String layerId) {
// Find the layer
mbgl::style::Layer* coreLayer = map->getLayer(jni::Make<std::string>(env, layerId));
if (!coreLayer) {
mbgl::Log::Debug(mbgl::Event::JNI, "No layer found");
return jni::Object<Layer>();
}
// Create and return the layer's native peer
return jni::Object<Layer>(createJavaLayerPeer(env, *map, *coreLayer));
}
void NativeMapView::addLayer(JNIEnv& env, jlong nativeLayerPtr, jni::String before) {
assert(nativeLayerPtr != 0);
Layer *layer = reinterpret_cast<Layer *>(nativeLayerPtr);
try {
layer->addToMap(*map, before ? mbgl::optional<std::string>(jni::Make<std::string>(env, before)) : mbgl::optional<std::string>());
} catch (const std::runtime_error& error) {
jni::ThrowNew(env, jni::FindClass(env, "com/mapbox/mapboxsdk/style/layers/CannotAddLayerException"), error.what());
}
}
void NativeMapView::addLayerAbove(JNIEnv& env, jlong nativeLayerPtr, jni::String above) {
assert(nativeLayerPtr != 0);
Layer *layer = reinterpret_cast<Layer *>(nativeLayerPtr);
// Find the sibling
auto layers = map->getLayers();
auto siblingId = jni::Make<std::string>(env, above);
size_t index = 0;
for (auto l : layers) {
if (l->getID() == siblingId) {
break;
}
index++;
}
// Check if we found a sibling to place before
mbgl::optional<std::string> before;
if (index + 1 > layers.size()) {
// Not found
jni::ThrowNew(env, jni::FindClass(env, "com/mapbox/mapboxsdk/style/layers/CannotAddLayerException"),
std::string("Could not find layer: ").append(siblingId).c_str());
return;
} else if (index + 1 < layers.size()) {
// Place before the sibling
before = { layers.at(index + 1)->getID() };
}
// Add the layer
try {
layer->addToMap(*map, before);
} catch (const std::runtime_error& error) {
jni::ThrowNew(env, jni::FindClass(env, "com/mapbox/mapboxsdk/style/layers/CannotAddLayerException"), error.what());
}
}
void NativeMapView::addLayerAt(JNIEnv& env, jlong nativeLayerPtr, jni::jint index) {
assert(nativeLayerPtr != 0);
Layer *layer = reinterpret_cast<Layer *>(nativeLayerPtr);
auto layers = map->getLayers();
// Check index
int numLayers = layers.size() - 1;
if (index > numLayers || index < 0) {
Log::Error(Event::JNI, "Index out of range: %i", index);
jni::ThrowNew(env, jni::FindClass(env, "com/mapbox/mapboxsdk/style/layers/CannotAddLayerException"),
std::string("Invalid index").c_str());
return;
}
// Insert it below the current at that index
try {
layer->addToMap(*map, layers.at(index)->getID());
} catch (const std::runtime_error& error) {
jni::ThrowNew(env, jni::FindClass(env, "com/mapbox/mapboxsdk/style/layers/CannotAddLayerException"), error.what());
}
}
/**
* Remove by layer id.
*/
jni::Object<Layer> NativeMapView::removeLayerById(JNIEnv& env, jni::String id) {
std::unique_ptr<mbgl::style::Layer> coreLayer = map->removeLayer(jni::Make<std::string>(env, id));
if (coreLayer) {
return jni::Object<Layer>(createJavaLayerPeer(env, *map, std::move(coreLayer)));
} else {
return jni::Object<Layer>();
}
}
/**
* Remove layer at index.
*/
jni::Object<Layer> NativeMapView::removeLayerAt(JNIEnv& env, jni::jint index) {
auto layers = map->getLayers();
// Check index
int numLayers = layers.size() - 1;
if (index > numLayers || index < 0) {
Log::Warning(Event::JNI, "Index out of range: %i", index);
return jni::Object<Layer>();
}
std::unique_ptr<mbgl::style::Layer> coreLayer = map->removeLayer(layers.at(index)->getID());
if (coreLayer) {
return jni::Object<Layer>(createJavaLayerPeer(env, *map, std::move(coreLayer)));
} else {
return jni::Object<Layer>();
}
}
/**
* Remove with wrapper object id. Ownership is transferred back to the wrapper
*/
void NativeMapView::removeLayer(JNIEnv&, jlong layerPtr) {
assert(layerPtr != 0);
mbgl::android::Layer *layer = reinterpret_cast<mbgl::android::Layer *>(layerPtr);
std::unique_ptr<mbgl::style::Layer> coreLayer = map->removeLayer(layer->get().getID());
if (coreLayer) {
layer->setLayer(std::move(coreLayer));
}
}
jni::Array<jni::Object<Source>> NativeMapView::getSources(JNIEnv& env) {
// Get the core sources
std::vector<style::Source*> sources = map->getSources();
// Convert
jni::Array<jni::Object<Source>> jSources = jni::Array<jni::Object<Source>>::New(env, sources.size(), Source::javaClass);
int index = 0;
for (auto source : sources) {
auto jSource = jni::Object<Source>(createJavaSourcePeer(env, *map, *source));
jSources.Set(env, index, jSource);
jni::DeleteLocalRef(env, jSource);
index++;
}
return jSources;
}
jni::Object<Source> NativeMapView::getSource(JNIEnv& env, jni::String sourceId) {
// Find the source
mbgl::style::Source* coreSource = map->getSource(jni::Make<std::string>(env, sourceId));
if (!coreSource) {
mbgl::Log::Debug(mbgl::Event::JNI, "No source found");
return jni::Object<Source>();
}
// Create and return the source's native peer
return jni::Object<Source>(createJavaSourcePeer(env, *map, *coreSource));
}
void NativeMapView::addSource(JNIEnv& env, jni::jlong sourcePtr) {
assert(sourcePtr != 0);