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[android][core] Add Map::latLngBoundsForCameraUnwrapped and jni binding for getVisibleCoordinateBounds. (#16069)

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* [android] Add getVisibleCoordinateBounds method.
* Fix Map::latLngBoundsForCamera, add Android binding for getVisibleRegionBounds.
* Add unit tests for CameraToLatLngBoundsWithRotation and CameraToLatLngBoundsCrossDateLine.
* Move API breaking changes to a new method name latLngBoundsForCameraUnwrapped.
This commit is contained in:
Peng Liu
2020-01-09 15:53:23 +02:00
committed by GitHub
parent d3a5ed968c
commit 236afc0395
5 changed files with 87 additions and 0 deletions
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21
platform/android/src/native_map_view.cpp
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@@ -529,6 +529,26 @@ void NativeMapView::setVisibleCoordinateBounds(JNIEnv& env, const jni::Array<jni
map->easeTo(cameraOptions, animationOptions);
}
void NativeMapView::getVisibleCoordinateBounds(JNIEnv& env, jni::Array<jdouble>& output) {
auto latlngBounds = map->latLngBoundsForCameraUnwrapped(map->getCameraOptions(mbgl::nullopt));
double latNorth = latlngBounds.north();
double lonEast = latlngBounds.east();
double latSouth = latlngBounds.south();
double lonWest = latlngBounds.west();
std::vector<jdouble> buffer;
buffer.reserve(4);
// Order of the LatLngBounds: double latNorth, double lonEast, double latSouth, double lonWest
buffer.push_back(latNorth);
buffer.push_back(lonEast);
buffer.push_back(latSouth);
buffer.push_back(lonWest);
output.SetRegion<std::vector<jdouble>>(env, 0, buffer);
}
void NativeMapView::scheduleSnapshot(jni::JNIEnv&) {
mapRenderer.requestSnapshot([&](PremultipliedImage image) {
auto _env = android::AttachEnv();
@@ -1172,6 +1192,7 @@ void NativeMapView::registerNative(jni::JNIEnv& env) {
METHOD(&NativeMapView::projectedMetersForLatLng, "nativeProjectedMetersForLatLng"),
METHOD(&NativeMapView::pixelForLatLng, "nativePixelForLatLng"),
METHOD(&NativeMapView::pixelsForLatLngs, "nativePixelsForLatLngs"),
METHOD(&NativeMapView::getVisibleCoordinateBounds, "nativeGetVisibleCoordinateBounds"),
METHOD(&NativeMapView::latLngForProjectedMeters, "nativeLatLngForProjectedMeters"),
METHOD(&NativeMapView::latLngForPixel, "nativeLatLngForPixel"),
METHOD(&NativeMapView::latLngsForPixels, "nativeLatLngsForPixels"),