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338282f74d
Tests show that we need to preserve whether x or dppx units were used, so the simplest way is to treat them separately.
57 lines
1.2 KiB
C++
57 lines
1.2 KiB
C++
/*
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* Copyright (c) 2022-2025, Sam Atkins <sam@ladybird.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/CSS/SerializationMode.h>
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namespace Web::CSS {
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class Resolution {
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public:
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enum class Type : u8 {
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Dpi,
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Dpcm,
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Dppx,
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X,
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};
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static Optional<Type> unit_from_name(StringView);
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Resolution(double value, Type type);
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static Resolution make_dots_per_pixel(double);
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String to_string(SerializationMode = SerializationMode::Normal) const;
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double to_dots_per_pixel() 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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StringView unit_name() const;
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bool operator==(Resolution 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<=>(Resolution const& other) const
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{
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auto this_dots_per_pixel = to_dots_per_pixel();
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auto other_dots_per_pixel = other.to_dots_per_pixel();
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if (this_dots_per_pixel < other_dots_per_pixel)
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return -1;
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if (this_dots_per_pixel > other_dots_per_pixel)
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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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Type m_type;
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double m_value { 0 };
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};
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}
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