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89 lines
3.4 KiB
C++
89 lines
3.4 KiB
C++
/*
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* Copyright (c) 2024, Sam Atkins <sam@ladybird.org>
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* Copyright (c) 2025, Tim Ledbetter <tim.ledbetter@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 "CSSLabLike.h"
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#include <AK/TypeCasts.h>
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#include <LibWeb/CSS/CSSStyleValue.h>
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#include <LibWeb/CSS/Serialize.h>
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#include <LibWeb/CSS/StyleValues/CalculatedStyleValue.h>
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#include <LibWeb/CSS/StyleValues/NumberStyleValue.h>
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#include <LibWeb/CSS/StyleValues/PercentageStyleValue.h>
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namespace Web::CSS {
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bool CSSLabLike::equals(CSSStyleValue const& other) const
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{
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if (type() != other.type())
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return false;
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auto const& other_color = other.as_color();
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if (color_type() != other_color.color_type())
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return false;
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auto const& other_lab_like = as<CSSLabLike>(other_color);
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return m_properties == other_lab_like.m_properties;
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}
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Color CSSOKLab::to_color(Optional<Layout::NodeWithStyle const&>) const
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{
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auto const l_val = clamp(resolve_with_reference_value(m_properties.l, 1.0).value_or(0), 0, 1);
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auto const a_val = resolve_with_reference_value(m_properties.a, 0.4).value_or(0);
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auto const b_val = resolve_with_reference_value(m_properties.b, 0.4).value_or(0);
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auto const alpha_val = resolve_alpha(m_properties.alpha).value_or(1);
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return Color::from_oklab(l_val, a_val, b_val, alpha_val);
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}
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// https://www.w3.org/TR/css-color-4/#serializing-oklab-oklch
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String CSSOKLab::to_string(SerializationMode mode) const
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{
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StringBuilder builder;
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builder.append("oklab("sv);
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serialize_color_component(builder, mode, m_properties.l, 1.0f, 0, 1);
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builder.append(' ');
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serialize_color_component(builder, mode, m_properties.a, 0.4f);
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builder.append(' ');
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serialize_color_component(builder, mode, m_properties.b, 0.4f);
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if ((!m_properties.alpha->is_number() || m_properties.alpha->as_number().number() < 1)
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&& (!m_properties.alpha->is_percentage() || m_properties.alpha->as_percentage().percentage().as_fraction() < 1)) {
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builder.append(" / "sv);
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serialize_alpha_component(builder, mode, m_properties.alpha);
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}
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builder.append(')');
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return MUST(builder.to_string());
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}
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Color CSSLab::to_color(Optional<Layout::NodeWithStyle const&>) const
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{
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auto const l_val = clamp(resolve_with_reference_value(m_properties.l, 100).value_or(0), 0, 100);
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auto const a_val = resolve_with_reference_value(m_properties.a, 125).value_or(0);
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auto const b_val = resolve_with_reference_value(m_properties.b, 125).value_or(0);
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auto const alpha_val = resolve_alpha(m_properties.alpha).value_or(1);
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return Color::from_lab(l_val, a_val, b_val, alpha_val);
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}
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// https://www.w3.org/TR/css-color-4/#serializing-lab-lch
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String CSSLab::to_string(SerializationMode mode) const
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{
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StringBuilder builder;
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builder.append("lab("sv);
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serialize_color_component(builder, mode, m_properties.l, 100, 0, 100);
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builder.append(' ');
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serialize_color_component(builder, mode, m_properties.a, 125);
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builder.append(' ');
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serialize_color_component(builder, mode, m_properties.b, 125);
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if ((!m_properties.alpha->is_number() || m_properties.alpha->as_number().number() < 1)
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&& (!m_properties.alpha->is_percentage() || m_properties.alpha->as_percentage().percentage().as_fraction() < 1)) {
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builder.append(" / "sv);
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serialize_alpha_component(builder, mode, m_properties.alpha);
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}
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builder.append(')');
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return MUST(builder.to_string());
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}
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}
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