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LibWeb: Implement CSS Resolution class

This corresponds to `<resolution>` in the grammar.
This commit is contained in:
Sam Atkins 2022-02-21 17:51:01 +00:00 committed by Andreas Kling
parent bd79c303f6
commit 0465abcfec
7 changed files with 160 additions and 0 deletions

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/*
* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/String.h>
#include <LibWeb/Forward.h>
namespace Web::CSS {
class Resolution {
public:
enum class Type {
Dpi,
Dpcm,
Dppx,
};
static Optional<Type> unit_from_name(StringView);
Resolution(int value, Type type);
Resolution(float value, Type type);
String to_string() const;
float to_dots_per_pixel() const;
bool operator==(Resolution const& other) const
{
return m_type == other.m_type && m_value == other.m_value;
}
bool operator!=(Resolution const& other) const
{
return !(*this == other);
}
private:
StringView unit_name() const;
Type m_type;
float m_value { 0 };
};
}