Files
MapLibreParticleLab/include/mbgl/style/expression/image_expression.hpp
Alexander Shalamov c6f3cc8b60 [core] Implement image expression (#15877)
* [core] Bump gl-js version
* [core] Implement image expression
* [core] Use new image expression
* [core] Coerce image expression to / from string
* [core] Serialize evaluated image
* [core] Pass available images to layout
* [core] Pass images to evaluation context
* [core] Set available flag value based on image availability
* [core] Allow image coercion to boolean to indicate image availability
* [core] Coalesce image expression
* [core] Add image expression to next build system
* [core] Align serialization format and evaluated type with gl-js
* [core] Add images to expression evaluation method
* [core] Add support for Image expression to expression test runner
* [core] Unskip image expression tests
* [core] Update unit tests
* [core] Use image expression in annotation manager
* [core] Add string to ImageExpression conversion
* [core] Add image expression to expression dsl
* [core] Convert tokens for implicitly created Image literal
* [core] Fix clang format
* [core] Split generated style code lines that are over 120 characters
* [core] Add unit test for image expression equality
* [core] Add image property expression evaluation unit test
* [core] Unskip image expression render test
* [core] Skip 'in' expression tests
* [core] Ignore fill-pattern/update-feature-state render test
* [core] Rename Image::serialize to Image::toValue
2019-11-11 18:20:01 +02:00

34 lines
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#pragma once
#include <mbgl/style/expression/expression.hpp>
namespace mbgl {
namespace style {
namespace expression {
class ParsingContext;
class ImageExpression final : public Expression {
public:
explicit ImageExpression(std::unique_ptr<Expression> imageID);
EvaluationResult evaluate(const EvaluationContext&) const override;
static ParseResult parse(const mbgl::style::conversion::Convertible&, ParsingContext&);
void eachChild(const std::function<void(const Expression&)>&) const override;
bool operator==(const Expression& e) const override;
std::vector<optional<Value>> possibleOutputs() const override { return {nullopt}; }
mbgl::Value serialize() const override;
std::string getOperator() const override { return "image"; }
private:
std::shared_ptr<Expression> imageID;
};
} // namespace expression
} // namespace style
} // namespace mbgl