ladybird/Libraries/LibWeb/CSS/FontFeatureData.h

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/*
* Copyright (c) 2024, Johan Dahlin <jdahlin@gmail.com>
* Copyright (c) 2026, Callum Law <callumlaw1709@outlook.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/FlyString.h>
#include <AK/HashMap.h>
#include <LibGfx/Font/FontVariant.h>
#include <LibGfx/ShapeFeature.h>
#include <LibWeb/CSS/Enums.h>
#pragma once
namespace Web::CSS {
struct FontFeatureData {
Optional<Gfx::FontVariantAlternates> font_variant_alternates;
FontVariantCaps font_variant_caps;
Optional<Gfx::FontVariantEastAsian> font_variant_east_asian;
FontVariantEmoji font_variant_emoji;
Optional<Gfx::FontVariantLigatures> font_variant_ligatures;
Optional<Gfx::FontVariantNumeric> font_variant_numeric;
FontVariantPosition font_variant_position;
HashMap<FlyString, u8> font_feature_settings;
FontKerning font_kerning;
TextRendering text_rendering;
Gfx::ShapeFeatures to_shape_features() const;
bool operator==(FontFeatureData const& other) const = default;
};
}
namespace AK {
template<>
struct Traits<Web::CSS::FontFeatureData> : public DefaultTraits<Web::CSS::FontFeatureData> {
static unsigned hash(Web::CSS::FontFeatureData const& data)
{
u32 hash = 0;
hash = pair_int_hash(hash, data.font_variant_alternates.has_value() ? Traits<Gfx::FontVariantAlternates>::hash(data.font_variant_alternates.value()) : -1);
hash = pair_int_hash(hash, to_underlying(data.font_variant_caps));
hash = pair_int_hash(hash, data.font_variant_east_asian.has_value() ? Traits<Gfx::FontVariantEastAsian>::hash(data.font_variant_east_asian.value()) : -1);
hash = pair_int_hash(hash, to_underlying(data.font_variant_emoji));
hash = pair_int_hash(hash, data.font_variant_ligatures.has_value() ? Traits<Gfx::FontVariantLigatures>::hash(data.font_variant_ligatures.value()) : -1);
hash = pair_int_hash(hash, data.font_variant_numeric.has_value() ? Traits<Gfx::FontVariantNumeric>::hash(data.font_variant_numeric.value()) : -1);
hash = pair_int_hash(hash, to_underlying(data.font_variant_position));
hash = pair_int_hash(hash, to_underlying(data.font_kerning));
hash = pair_int_hash(hash, to_underlying(data.text_rendering));
for (auto const& [key, value] : data.font_feature_settings)
hash = pair_int_hash(hash, pair_int_hash(key.hash(), value));
return hash;
}
};
}