/* * Copyright (c) 2024, Sam Atkins * Copyright (c) 2025, Tim Ledbetter * * SPDX-License-Identifier: BSD-2-Clause */ #include "CSSLCHLike.h" #include #include #include #include #include #include #include namespace Web::CSS { bool CSSLCHLike::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_oklch_like = as(other_color); return m_properties == other_oklch_like.m_properties; } Optional CSSLCH::to_color(Optional, CalculationResolutionContext const& resolution_context) const { auto raw_l_val = resolve_with_reference_value(m_properties.l, 100, resolution_context); auto c_val = resolve_with_reference_value(m_properties.c, 150, resolution_context); auto raw_h_val = resolve_hue(m_properties.h, resolution_context); auto alpha_val = resolve_alpha(m_properties.alpha, resolution_context); if (!raw_l_val.has_value() || !c_val.has_value() || !raw_h_val.has_value() || !alpha_val.has_value()) return {}; auto l_val = clamp(raw_l_val.value(), 0, 100); auto h_val = AK::to_radians(raw_h_val.value()); return Color::from_lab(l_val, c_val.value() * cos(h_val), c_val.value() * sin(h_val), alpha_val.value()); } // https://www.w3.org/TR/css-color-4/#serializing-lab-lch String CSSLCH::to_string(SerializationMode mode) const { StringBuilder builder; builder.append("lch("sv); serialize_color_component(builder, mode, m_properties.l, 100, 0, 100); builder.append(' '); serialize_color_component(builder, mode, m_properties.c, 150, 0, 230); builder.append(' '); serialize_hue_component(builder, mode, m_properties.h); if ((!m_properties.alpha->is_number() || m_properties.alpha->as_number().number() < 1) && (!m_properties.alpha->is_percentage() || m_properties.alpha->as_percentage().percentage().as_fraction() < 1)) { builder.append(" / "sv); serialize_alpha_component(builder, mode, m_properties.alpha); } builder.append(')'); return MUST(builder.to_string()); } Optional CSSOKLCH::to_color(Optional, CalculationResolutionContext const& resolution_context) const { auto raw_l_val = resolve_with_reference_value(m_properties.l, 1.0, resolution_context); auto raw_c_val = resolve_with_reference_value(m_properties.c, 0.4, resolution_context); auto raw_h_val = resolve_hue(m_properties.h, resolution_context); auto alpha_val = resolve_alpha(m_properties.alpha, resolution_context); if (!raw_l_val.has_value() || !raw_c_val.has_value() || !raw_h_val.has_value() || !alpha_val.has_value()) return {}; auto l_val = clamp(raw_l_val.value(), 0, 1); auto c_val = max(raw_c_val.value(), 0); auto h_val = AK::to_radians(raw_h_val.value()); return Color::from_oklab(l_val, c_val * cos(h_val), c_val * sin(h_val), alpha_val.value()); } // https://www.w3.org/TR/css-color-4/#serializing-oklab-oklch String CSSOKLCH::to_string(SerializationMode mode) const { StringBuilder builder; builder.append("oklch("sv); serialize_color_component(builder, mode, m_properties.l, 1.0f, 0, 1); builder.append(' '); serialize_color_component(builder, mode, m_properties.c, 0.4f, 0, 2.3); builder.append(' '); serialize_hue_component(builder, mode, m_properties.h); if ((!m_properties.alpha->is_number() || m_properties.alpha->as_number().number() < 1) && (!m_properties.alpha->is_percentage() || m_properties.alpha->as_percentage().percentage().as_fraction() < 1)) { builder.append(" / "sv); serialize_alpha_component(builder, mode, m_properties.alpha); } builder.append(')'); return MUST(builder.to_string()); } }