8952764267
CSS-Typed-OM has the following hierarchy:
CSSStyleValue
- CSSNumericValue
- CSSUnitValue
- CSSMathValue
- ...various math functions...
Somewhat unintuitively, numbers are also stored using CSSUnitValue with
`unit = "number"`.
There are no distinct classes for LengthStyleValue, etc in the spec, but
they're convenient for us, so they are implemented as subclasses of
CSSUnitValue, at least for now.
70 lines
1.5 KiB
C++
70 lines
1.5 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 Angle {
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public:
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enum class Type {
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Deg,
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Grad,
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Rad,
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Turn,
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};
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static Optional<Type> unit_from_name(StringView);
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Angle(double value, Type type);
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static Angle make_degrees(double);
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Angle percentage_of(Percentage const&) const;
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String to_string() const;
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double to_degrees() const;
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double to_radians() 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==(Angle 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<=>(Angle const& other) const
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{
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auto this_degrees = to_degrees();
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auto other_degrees = other.to_degrees();
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if (this_degrees < other_degrees)
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return -1;
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if (this_degrees > other_degrees)
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return 1;
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return 0;
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}
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static Angle resolve_calculated(NonnullRefPtr<CalculatedStyleValue> const&, Layout::Node const&, Angle const& reference_value);
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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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template<>
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struct AK::Formatter<Web::CSS::Angle> : Formatter<StringView> {
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ErrorOr<void> format(FormatBuilder& builder, Web::CSS::Angle const& angle)
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{
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return Formatter<StringView>::format(builder, angle.to_string());
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}
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};
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