diff options
Diffstat (limited to 'include/mbgl/util/feature.hpp')
| -rw-r--r-- | include/mbgl/util/feature.hpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/mbgl/util/feature.hpp b/include/mbgl/util/feature.hpp index 9e2286018c..390cc65720 100644 --- a/include/mbgl/util/feature.hpp +++ b/include/mbgl/util/feature.hpp @@ -1,6 +1,7 @@ #pragma once #include <mbgl/util/optional.hpp> +#include <mbgl/util/string.hpp> #include <mapbox/feature.hpp> @@ -11,6 +12,9 @@ using NullValue = mapbox::feature::null_value_t; using PropertyMap = mapbox::feature::property_map; using FeatureIdentifier = mapbox::feature::identifier; using Feature = mapbox::feature::feature<double>; +using FeatureState = PropertyMap; +using FeatureStates = std::unordered_map<std::string, FeatureState>; // <featureID, FeatureState> +using LayerFeatureStates = std::unordered_map<std::string, FeatureStates>; // <sourceLayer, FeatureStates> template <class T> optional<T> numericValue(const Value& value) { @@ -29,4 +33,15 @@ optional<T> numericValue(const Value& value) { }); } +inline optional<std::string> featureIDtoString(const FeatureIdentifier& id) { + if (id.is<NullValue>()) { + return nullopt; + } + + return id.match( + [](const std::string& value_) { return value_; }, [](uint64_t value_) { return util::toString(value_); }, + [](int64_t value_) { return util::toString(value_); }, [](double value_) { return util::toString(value_); }, + [](const auto&) -> optional<std::string> { return nullopt; }); +} + } // namespace mbgl |