Merge remote-tracking branch 'origin/master' into feature/custom-vector-source

1 files changed, 61 insertions, 0 deletions

diff --git a/src/mbgl/style/function/identity_stops.cpp b/src/mbgl/style/function/identity_stops.cpp
new file mode 100644
index 0000000000..dfb34e9dd4
--- /dev/null
+++ b/src/mbgl/style/function/identity_stops.cpp
@@ -0,0 +1,61 @@
+#include <mbgl/style/function/identity_stops.hpp>
+#include <mbgl/style/types.hpp>
+#include <mbgl/util/enum.hpp>
+#include <mbgl/util/color.hpp>
+
+#include <array>
+
+namespace mbgl {
+namespace style {
+
+template <>
+optional<float> IdentityStops<float>::evaluate(const Value& value) const {
+    return numericValue<float>(value);
+}
+
+template <>
+optional<std::string> IdentityStops<std::string>::evaluate(const Value& value) const {
+    if (!value.is<std::string>()) {
+        return {};
+    }
+    
+    return value.get<std::string>();
+}
+
+template <>
+optional<Color> IdentityStops<Color>::evaluate(const Value& value) const {
+    if (!value.is<std::string>()) {
+        return {};
+    }
+
+    return Color::parse(value.get<std::string>());
+}
+
+template <>
+optional<TextTransformType> IdentityStops<TextTransformType>::evaluate(const Value& value) const {
+    if (!value.is<std::string>()) {
+        return {};
+    }
+    
+    return Enum<TextTransformType>::toEnum(value.get<std::string>());
+}
+
+template <>
+optional<std::array<float, 2>> IdentityStops<std::array<float, 2>>::evaluate(const Value& value) const {
+    if (!value.is<std::vector<Value>>()) {
+        return {};
+    }
+
+    const std::vector<Value>& vector = value.get<std::vector<Value>>();
+    if (vector.size() != 2 || !numericValue<float>(vector[0]) || !numericValue<float>(vector[1])) {
+        return {};
+    }
+
+    return {{{
+        *numericValue<float>(vector[0]),
+        *numericValue<float>(vector[1])
+    }}};
+}
+
+} // namespace style
+} // namespace mbgl