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LibWeb/CSS: Make CSSOKLab inherit from a new CSSLabLike class

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This class provides the common base for both CSSOKLab and the future
CSSLab classes.
This commit is contained in:
Lucas CHOLLET 2024-10-26 16:14:04 -04:00 • committed by Andreas Kling
commit 8efa046e0c
Notes: github-actions[bot] 2024-10-27 09:28:40 +00:00
5 changed files with 42 additions and 33 deletions
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44
Userland/Libraries/LibWeb/CSS/StyleValues/CSSLabLike.cpp Normal file
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/*
* Copyright (c) 2024, Sam Atkins <sam@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "CSSLabLike.h"
#include <AK/TypeCasts.h>
#include <LibWeb/CSS/Serialize.h>
#include <LibWeb/CSS/StyleValues/CSSMathValue.h>
#include <LibWeb/CSS/StyleValues/NumberStyleValue.h>
#include <LibWeb/CSS/StyleValues/PercentageStyleValue.h>
namespace Web::CSS {
bool CSSLabLike::equals(CSSStyleValue const& other) const
{
if (type() != other.type())
return false;
auto const& other_color = other.as_color();
if (color_type() != other_color.color_type())
return false;
auto const& other_lab_like = verify_cast<CSSLabLike>(other_color);
return m_properties == other_lab_like.m_properties;
}
Color CSSOKLab::to_color(Optional<Layout::NodeWithStyle const&>) const
{
auto const l_val = clamp(resolve_with_reference_value(m_properties.l, 1.0).value_or(0), 0, 1);
auto const a_val = resolve_with_reference_value(m_properties.a, 0.4).value_or(0);
auto const b_val = resolve_with_reference_value(m_properties.b, 0.4).value_or(0);
auto const alpha_val = resolve_alpha(m_properties.alpha).value_or(1);
return Color::from_oklab(l_val, a_val, b_val, alpha_val);
}
// https://www.w3.org/TR/css-color-4/#serializing-oklab-oklch
String CSSOKLab::to_string() const
{
// FIXME: Do this properly, taking unresolved calculated values into account.
return serialize_a_srgb_value(to_color({}));
}
}