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#pragma once
#include <mbgl/style/layer.hpp>
#include <mbgl/style/conversion.hpp>
#include <mbgl/style/conversion/constant.hpp>
#include <mbgl/style/conversion/property_value.hpp>
#include <mbgl/style/conversion/data_driven_property_value.hpp>
#include <mbgl/style/conversion/transition_options.hpp>
#include <string>
namespace mbgl {
namespace style {
namespace conversion {
template <class V>
using PropertySetter = optional<Error> (*) (Layer&, const V&);
template <class V, class L, class PropertyValue, void (L::*setter)(PropertyValue)>
optional<Error> setProperty(Layer& layer, const V& value) {
auto* typedLayer = layer.as<L>();
if (!typedLayer) {
return Error { "layer doesn't support this property" };
}
Error error;
optional<PropertyValue> typedValue = convert<PropertyValue>(value, error);
if (!typedValue) {
return error;
}
(typedLayer->*setter)(*typedValue);
return {};
}
template <class V, class L, void (L::*setter)(const TransitionOptions&)>
optional<Error> setTransition(Layer& layer, const V& value) {
auto* typedLayer = layer.as<L>();
if (!typedLayer) {
return Error { "layer doesn't support this property" };
}
Error error;
optional<TransitionOptions> transition = convert<TransitionOptions>(value, error);
if (!transition) {
return error;
}
(typedLayer->*setter)(*transition);
return {};
}
template <class V>
optional<Error> setVisibility(Layer& layer, const V& value) {
if (isUndefined(value)) {
layer.setVisibility(VisibilityType::Visible);
return {};
}
Error error;
optional<VisibilityType> visibility = convert<VisibilityType>(value, error);
if (!visibility) {
return error;
}
layer.setVisibility(*visibility);
return {};
}
} // namespace conversion
} // namespace style
} // namespace mbgl
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