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b3e32445d3
I've also renamed the `m_type` and `type()` members to be `m_unit` and `unit()` instead, to match what they actually are.
78 lines
2.1 KiB
C++
78 lines
2.1 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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#include <AK/Math.h>
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#include <LibWeb/CSS/Angle.h>
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#include <LibWeb/CSS/Percentage.h>
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#include <LibWeb/CSS/Serialize.h>
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#include <LibWeb/CSS/StyleValues/CalculatedStyleValue.h>
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namespace Web::CSS {
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Angle::Angle(double value, AngleUnit unit)
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: m_unit(unit)
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, m_value(value)
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{
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}
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Angle Angle::make_degrees(double value)
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{
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return { value, AngleUnit::Deg };
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}
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Angle Angle::percentage_of(Percentage const& percentage) const
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{
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return Angle { percentage.as_fraction() * m_value, m_unit };
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}
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String Angle::to_string(SerializationMode serialization_mode) const
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{
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// https://drafts.csswg.org/cssom/#serialize-a-css-value
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// -> <angle>
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// The <number> component serialized as per <number> followed by the unit in canonical form as defined in its
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// respective specification.
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if (serialization_mode == SerializationMode::ResolvedValue) {
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StringBuilder builder;
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serialize_a_number(builder, to_degrees());
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builder.append("deg"sv);
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return builder.to_string_without_validation();
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}
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StringBuilder builder;
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serialize_a_number(builder, raw_value());
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builder.append(unit_name());
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return builder.to_string_without_validation();
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}
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double Angle::to_degrees() const
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{
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switch (m_unit) {
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case AngleUnit::Deg:
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return m_value;
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case AngleUnit::Grad:
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return m_value * (360.0 / 400.0);
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case AngleUnit::Rad:
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return AK::to_degrees(m_value);
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case AngleUnit::Turn:
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return m_value * 360.0;
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}
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VERIFY_NOT_REACHED();
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}
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double Angle::to_radians() const
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{
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return AK::to_radians(to_degrees());
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}
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Angle Angle::resolve_calculated(NonnullRefPtr<CalculatedStyleValue const> const& calculated, Layout::Node const& layout_node, Angle const& reference_value)
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{
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CalculationResolutionContext context {
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.percentage_basis = reference_value,
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.length_resolution_context = Length::ResolutionContext::for_layout_node(layout_node),
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};
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return calculated->resolve_angle(context).value();
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}
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}
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