Add rotation.cpp / hpp filesupstream/galinelle_locationComponent_interpolate_rotation

3 files changed, 67 insertions, 0 deletions

diff --git a/include/mbgl/style/conversion/rotation.hpp b/include/mbgl/style/conversion/rotation.hpp
new file mode 100644
index 0000000000..b250b6e947
--- /dev/null
+++ b/include/mbgl/style/conversion/rotation.hpp
@@ -0,0 +1,18 @@
+#pragma once
+
+#include <mbgl/style/rotation.hpp>
+#include <mbgl/style/conversion.hpp>
+#include <mbgl/util/optional.hpp>
+
+namespace mbgl {
+namespace style {
+namespace conversion {
+
+template <>
+struct Converter<style::Rotation> {
+    optional<style::Rotation> operator()(const Convertible& value, Error& error) const;
+};
+
+} // namespace conversion
+} // namespace style
+} // namespace mbgl
diff --git a/include/mbgl/style/rotation.hpp b/include/mbgl/style/rotation.hpp
new file mode 100644
index 0000000000..30adfb8d50
--- /dev/null
+++ b/include/mbgl/style/rotation.hpp
@@ -0,0 +1,29 @@
+#pragma once
+
+namespace mbgl {
+namespace style {
+
+// Could be made a template class if needed
+// template <size_t Period>
+// size_t period() const noexcept { return Period; }
+class Rotation {
+public:
+   Rotation() = default;
+   Rotation(double angle_) : angle(angle_) {}
+   double period() const noexcept { return 360.0; }
+   double getAngle() const noexcept { return angle; }
+
+    friend bool operator==(const Rotation& lhs, const Rotation& rhs) {
+        return lhs.angle == rhs.angle;
+    }
+
+    friend bool operator!=(const Rotation& lhs, const Rotation& rhs) {
+        return !(lhs == rhs);
+    }
+
+private:
+    double angle;
+};
+
+} // namespace style
+} // namespace mbgl
diff --git a/src/mbgl/style/conversion/rotation.cpp b/src/mbgl/style/conversion/rotation.cpp
new file mode 100644
index 0000000000..9b382b7400
--- /dev/null
+++ b/src/mbgl/style/conversion/rotation.cpp
@@ -0,0 +1,20 @@
+#include <mbgl/style/conversion/rotation.hpp>
+#include <mbgl/style/conversion/constant.hpp>
+#include <mbgl/style/conversion_impl.hpp>
+
+namespace mbgl {
+namespace style {
+namespace conversion {
+
+optional<style::Rotation> Converter<style::Rotation>::operator()(const Convertible& value, Error& error) const {
+    optional<double> converted = toDouble(value);
+    if (!converted) {
+        error.message = "value must be a number";
+        return nullopt;
+    }
+    return {*converted};
+}
+
+} // namespace conversion
+} // namespace style
+} // namespace mbgl