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#pragma once
#include <mbgl/style/conversion.hpp>
#include <mbgl/util/font_stack.hpp>
#include <mbgl/util/optional.hpp>
#include <mbgl/util/variant.hpp>
#include <vector>
#include <string>
namespace mbgl {
namespace style {
namespace expression {
extern const char* const kFormattedSectionFontScale;
extern const char* const kFormattedSectionTextFont;
extern const char* const kFormattedSectionID;
using FormattedSectionID = variant<double, std::string>;
template<class Variant>
optional<FormattedSectionID> toFormattedSectionID(const Variant& variant) {
return variant.match(
[] (double t) -> FormattedSectionID { return t; },
[] (const std::string& t) -> FormattedSectionID { return t;},
[] (auto&) -> optional<FormattedSectionID> { return nullopt; });
}
struct FormattedSection {
FormattedSection(std::string text_, optional<double> fontScale_,
optional<FontStack> fontStack_, optional<FormattedSectionID> id_)
: text(std::move(text_))
, fontScale(std::move(fontScale_))
, fontStack(std::move(fontStack_))
, id(std::move(id_))
{}
std::string text;
optional<double> fontScale;
optional<FontStack> fontStack;
optional<FormattedSectionID> id;
};
class Formatted {
public:
Formatted() = default;
Formatted(const char* plainU8String) {
sections.emplace_back(std::string(plainU8String), nullopt, nullopt, nullopt);
}
Formatted(std::vector<FormattedSection> sections_)
: sections(std::move(sections_))
{}
bool operator==(const Formatted& ) const;
std::string toString() const;
bool empty() const {
return sections.empty() || sections.at(0).text.empty();
}
std::vector<FormattedSection> sections;
};
} // namespace expression
namespace conversion {
template <>
struct Converter<mbgl::style::expression::Formatted> {
public:
optional<mbgl::style::expression::Formatted> operator()(const Convertible& value, Error& error) const;
};
} // namespace conversion
} // namespace style
} // namespace mbgl
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