diff options
Diffstat (limited to 'include/mbgl/style/conversion_impl.hpp')
-rw-r--r-- | include/mbgl/style/conversion_impl.hpp | 54 |
1 files changed, 53 insertions, 1 deletions
diff --git a/include/mbgl/style/conversion_impl.hpp b/include/mbgl/style/conversion_impl.hpp index f049ba4ffb..7ac4ec649b 100644 --- a/include/mbgl/style/conversion_impl.hpp +++ b/include/mbgl/style/conversion_impl.hpp @@ -1,11 +1,17 @@ #pragma once +#include <mbgl/style/color_ramp_property_value.hpp> #include <mbgl/style/conversion.hpp> -#include <mbgl/util/optional.hpp> +#include <mbgl/style/property_value.hpp> #include <mbgl/util/feature.hpp> #include <mbgl/util/geojson.hpp> +#include <mbgl/util/optional.hpp> +#include <mapbox/value.hpp> + +#include <array> #include <string> +#include <type_traits> namespace mbgl { namespace style { @@ -288,6 +294,52 @@ optional<T> convert(const Convertible& value, Error& error, Args&&...args) { return Converter<T>()(value, error, std::forward<Args>(args)...); } +template <typename T, typename = void> +struct ValueFactory; + +template <typename T> +struct ValueArrayFactory { + static Value make(const T& arg) { return mapbox::base::ValueArray(arg.begin(), arg.end()); } +}; + +template <> +struct ValueFactory<std::array<float, 2>> : public ValueArrayFactory<std::array<float, 2>> {}; + +template <> +struct ValueFactory<std::vector<float>> : public ValueArrayFactory<std::vector<float>> {}; + +template <> +struct ValueFactory<ColorRampPropertyValue> { + static Value make(const ColorRampPropertyValue& value) { return value.getExpression().serialize(); } +}; + +template <> +struct ValueFactory<Color> { + static Value make(const Color& color) { return color.toObject(); } +}; + +template <typename T> +struct ValueFactory<T, typename std::enable_if<!std::is_enum<T>::value>::type> { + static Value make(const T& arg) { return {arg}; } +}; + +template <typename T> +struct ValueFactory<T, typename std::enable_if<std::is_enum<T>::value>::type> { + static Value make(T arg) { return {int64_t(arg)}; } +}; + +template <typename T> +Value makeValue(T&& arg) { + return ValueFactory<std::decay_t<T>>::make(std::forward<T>(arg)); +} + +template <typename T> +Value makeValue(const PropertyValue<T>& value) { + return value.match([](const Undefined&) -> Value { return {}; }, + [](const T& t) -> Value { return makeValue(t); }, + [](const PropertyExpression<T>& fn) { return fn.getExpression().serialize(); }); +} + } // namespace conversion } // namespace style } // namespace mbgl |