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Diffstat (limited to 'platform/default/mbgl/map/map_snapshotter.cpp')
-rw-r--r--platform/default/mbgl/map/map_snapshotter.cpp21
1 files changed, 20 insertions, 1 deletions
diff --git a/platform/default/mbgl/map/map_snapshotter.cpp b/platform/default/mbgl/map/map_snapshotter.cpp
index e542e2fb54..3e930c31f1 100644
--- a/platform/default/mbgl/map/map_snapshotter.cpp
+++ b/platform/default/mbgl/map/map_snapshotter.cpp
@@ -3,9 +3,11 @@
#include <mbgl/actor/actor_ref.hpp>
#include <mbgl/gl/headless_frontend.hpp>
#include <mbgl/map/map.hpp>
+#include <mbgl/map/transform_state.hpp>
#include <mbgl/storage/file_source.hpp>
#include <mbgl/style/style.hpp>
#include <mbgl/util/event.hpp>
+#include <mbgl/map/transform.hpp>
namespace mbgl {
@@ -62,7 +64,24 @@ MapSnapshotter::Impl::Impl(FileSource& fileSource,
void MapSnapshotter::Impl::snapshot(ActorRef<MapSnapshotter::Callback> callback) {
map.renderStill([this, callback = std::move(callback)] (std::exception_ptr error) mutable {
- callback.invoke(&MapSnapshotter::Callback::operator(), error, error ? PremultipliedImage() : frontend.readStillImage());
+
+ // Create lambda that captures the current transform state
+ // and can be used to translate for geographic to screen
+ // coordinates
+ assert (frontend.getTransformState());
+ PointForFn pointForFn { [=, center=map.getLatLng(), transformState = *frontend.getTransformState()] (const LatLng& latLng) {
+ LatLng unwrappedLatLng = latLng.wrapped();
+ unwrappedLatLng.unwrapForShortestPath(center);
+ Transform transform { transformState };
+ return transform.latLngToScreenCoordinate(unwrappedLatLng);
+ }};
+
+ callback.invoke(
+ &MapSnapshotter::Callback::operator(),
+ error,
+ error ? PremultipliedImage() : frontend.readStillImage(),
+ std::move(pointForFn)
+ );
});
}