86 lines
1.8 KiB
C++
86 lines
1.8 KiB
C++
/*
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* Copyright (c) 2022, 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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#include "Frequency.h"
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#include <LibWeb/CSS/StyleValue.h>
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namespace Web::CSS {
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Frequency::Frequency(int value, Type type)
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: m_type(type)
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, m_value(value)
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{
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}
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Frequency::Frequency(float value, Type type)
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: m_type(type)
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, m_value(value)
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{
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}
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Frequency Frequency::make_calculated(NonnullRefPtr<CalculatedStyleValue> calculated_style_value)
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{
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Frequency frequency { 0, Type::Calculated };
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frequency.m_calculated_style = move(calculated_style_value);
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return frequency;
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}
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Frequency Frequency::make_hertz(float value)
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{
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return { value, Type::Hz };
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}
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Frequency Frequency::percentage_of(Percentage const& percentage) const
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{
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VERIFY(!is_calculated());
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return Frequency { percentage.as_fraction() * m_value, m_type };
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}
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String Frequency::to_string() const
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{
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if (is_calculated())
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return m_calculated_style->to_string();
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return String::formatted("{}{}", m_value, unit_name());
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}
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float Frequency::to_hertz() const
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{
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switch (m_type) {
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case Type::Calculated:
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return m_calculated_style->resolve_frequency()->to_hertz();
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case Type::Hz:
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return m_value;
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case Type::kHz:
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return m_value * 1000;
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}
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VERIFY_NOT_REACHED();
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}
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StringView Frequency::unit_name() const
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{
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switch (m_type) {
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case Type::Calculated:
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return "calculated"sv;
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case Type::Hz:
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return "hz"sv;
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case Type::kHz:
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return "khz"sv;
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}
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VERIFY_NOT_REACHED();
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}
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Optional<Frequency::Type> Frequency::unit_from_name(StringView name)
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{
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if (name.equals_ignoring_case("hz"sv)) {
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return Type::Hz;
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} else if (name.equals_ignoring_case("khz"sv)) {
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return Type::kHz;
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}
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return {};
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}
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}
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