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- /*
- * Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
- #pragma once
- #include <AK/RefPtr.h>
- #include <AK/String.h>
- #include <LibWeb/Forward.h>
- namespace Web::CSS {
- class Frequency {
- public:
- enum class Type {
- Calculated,
- Hz,
- kHz
- };
- static Optional<Type> unit_from_name(StringView);
- Frequency(int value, Type type);
- Frequency(float value, Type type);
- static Frequency make_calculated(NonnullRefPtr<CalculatedStyleValue>);
- static Frequency make_hertz(float);
- Frequency percentage_of(Percentage const&) const;
- bool is_calculated() const { return m_type == Type::Calculated; }
- NonnullRefPtr<CalculatedStyleValue> calculated_style_value() const;
- String to_string() const;
- float to_hertz() const;
- bool operator==(Frequency const& other) const
- {
- if (is_calculated())
- return m_calculated_style == other.m_calculated_style;
- return m_type == other.m_type && m_value == other.m_value;
- }
- bool operator!=(Frequency const& other) const
- {
- return !(*this == other);
- }
- private:
- StringView unit_name() const;
- Type m_type;
- float m_value { 0 };
- RefPtr<CalculatedStyleValue> m_calculated_style;
- };
- }
- template<>
- struct AK::Formatter<Web::CSS::Frequency> : Formatter<StringView> {
- ErrorOr<void> format(FormatBuilder& builder, Web::CSS::Frequency const& frequency)
- {
- return Formatter<StringView>::format(builder, frequency.to_string());
- }
- };
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