1 files changed, 47 insertions, 0 deletions
diff --git a/platform/qt/src/qt_geojson.hpp b/platform/qt/src/qt_geojson.hpp
index 07813623fd..f01db51bf7 100644
--- a/platform/qt/src/qt_geojson.hpp
+++ b/platform/qt/src/qt_geojson.hpp
@@ -4,12 +4,59 @@
 #include <mbgl/style/conversion/geojson.hpp>
 #include <mbgl/util/rapidjson.hpp>
 
+#include <QMapbox>
+
 #include <QByteArray>
 #include <QVariant>
 
 #include <sstream>
 #include <string>
 
+namespace QMapbox {
+
+mbgl::LineString<double> asMapboxGLLineString(const QMapbox::Coordinates &lineString) {
+    mbgl::LineString<double> mbglLineString;
+    mbglLineString.reserve(lineString.size());
+    for (const auto &coordinate : lineString) {
+        mbglLineString.emplace_back(mbgl::Point<double> { coordinate.second, coordinate.first });
+    }
+    return mbglLineString;
+};
+
+mbgl::MultiLineString<double> asMapboxGLMultiLineString(const QMapbox::CoordinatesCollection &multiLineString) {
+    mbgl::MultiLineString<double> mbglMultiLineString;
+    mbglMultiLineString.reserve(multiLineString.size());
+    for (const auto &lineString : multiLineString) {
+        mbglMultiLineString.emplace_back(std::forward<mbgl::LineString<double>>(asMapboxGLLineString(lineString)));
+    }
+    return mbglMultiLineString;
+};
+
+mbgl::Polygon<double> asMapboxGLPolygon(const QMapbox::CoordinatesCollection &polygon) {
+    mbgl::Polygon<double> mbglPolygon;
+    mbglPolygon.reserve(polygon.size());
+    for (const auto &linearRing : polygon) {
+        mbgl::LinearRing<double> mbglLinearRing;
+        mbglLinearRing.reserve(linearRing.size());
+        for (const auto &coordinate: linearRing) {
+            mbglLinearRing.emplace_back(mbgl::Point<double> { coordinate.second, coordinate.first });
+        }
+        mbglPolygon.emplace_back(std::move(mbglLinearRing));
+    }
+    return mbglPolygon;
+};
+
+mbgl::MultiPolygon<double> asMapboxGLMultiPolygon(const QMapbox::CoordinatesCollections &multiPolygon) {
+    mbgl::MultiPolygon<double> mbglMultiPolygon;
+    mbglMultiPolygon.reserve(multiPolygon.size());
+    for (const auto &polygon : multiPolygon) {
+        mbglMultiPolygon.emplace_back(std::forward<mbgl::Polygon<double>>(asMapboxGLPolygon(polygon)));
+    }
+    return mbglMultiPolygon;
+};
+
+} // namespace QMapbox
+
 namespace mbgl {
 namespace style {
 namespace conversion {