47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
#pragma once
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#include <mbgl/style/expression/expression.hpp>
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#include <mbgl/style/expression/parsing_context.hpp>
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#include <mbgl/style/conversion.hpp>
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#include <mbgl/util/range.hpp>
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#include <memory>
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#include <map>
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#include <optional>
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namespace mbgl {
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namespace style {
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namespace expression {
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class Step : public Expression {
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public:
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Step(type::Type type_, std::unique_ptr<Expression> input_, std::map<double, std::unique_ptr<Expression>> stops_);
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EvaluationResult evaluate(const EvaluationContext& params) const override;
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void eachChild(const std::function<void(const Expression&)>& visit) const override;
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std::size_t getStopCount() const { return stops.size(); }
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void eachStop(const std::function<void(double, const Expression&)>& visit) const;
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const std::unique_ptr<Expression>& getInput() const noexcept { return input; }
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Range<float> getCoveringStops(double lower, double upper) const noexcept;
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bool operator==(const Expression& e) const noexcept override;
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std::vector<std::optional<Value>> possibleOutputs() const override;
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static ParseResult parse(const mbgl::style::conversion::Convertible& value, ParsingContext& ctx);
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mbgl::Value serialize() const override;
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std::string getOperator() const override { return "step"; }
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private:
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const std::unique_ptr<Expression> input;
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const std::map<double, std::unique_ptr<Expression>> stops;
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};
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} // namespace expression
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} // namespace style
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} // namespace mbgl
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