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fbfce2e73e
This is to make it easier to bounds-check their values during parsing. Length is left out because many length units are relative to the context in which they are used, and so we cannot easily compare `10px` and `1em`, for example.
65 lines
1.4 KiB
C++
65 lines
1.4 KiB
C++
/*
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* Copyright (c) 2022-2023, Sam Atkins <atkinssj@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/String.h>
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#include <LibWeb/Forward.h>
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namespace Web::CSS {
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class Frequency {
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public:
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enum class Type {
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Hz,
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kHz
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};
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static Optional<Type> unit_from_name(StringView);
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Frequency(int value, Type type);
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Frequency(double value, Type type);
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static Frequency make_hertz(double);
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Frequency percentage_of(Percentage const&) const;
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ErrorOr<String> to_string() const;
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double to_hertz() const;
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Type type() const { return m_type; }
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double raw_value() const { return m_value; }
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bool operator==(Frequency const& other) const
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{
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return m_type == other.m_type && m_value == other.m_value;
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}
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int operator<=>(Frequency const& other) const
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{
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auto this_hertz = to_hertz();
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auto other_hertz = other.to_hertz();
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if (this_hertz < other_hertz)
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return -1;
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if (this_hertz > other_hertz)
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return 1;
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return 0;
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}
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private:
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StringView unit_name() const;
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Type m_type;
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double m_value { 0 };
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};
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}
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template<>
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struct AK::Formatter<Web::CSS::Frequency> : Formatter<StringView> {
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ErrorOr<void> format(FormatBuilder& builder, Web::CSS::Frequency const& frequency)
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{
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return Formatter<StringView>::format(builder, TRY(frequency.to_string()));
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}
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};
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