429b2e5860
This effectively makes it per-Document, but we hang it off of StyleComputer since that's what it's used for. The purpose of this is to prevent downloaded fonts from escaping the context that loaded them. There's probably a more elegant solution where we still share caching of system fonts, but let's start here.
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
/*
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* Copyright (c) 2018-2023, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/FlyString.h>
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#include <AK/HashMap.h>
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#include <LibGfx/Font/Font.h>
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#include <LibGfx/Forward.h>
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struct FontSelector {
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FlyString family;
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float point_size { 0 };
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int weight { 0 };
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int width { 0 };
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int slope { 0 };
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bool operator==(FontSelector const& other) const
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{
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return family == other.family && point_size == other.point_size && weight == other.weight && width == other.width && slope == other.slope;
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}
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};
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namespace AK {
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template<>
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struct Traits<FontSelector> : public GenericTraits<FontSelector> {
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static unsigned hash(FontSelector const& key) { return pair_int_hash(pair_int_hash(key.family.hash(), key.weight), key.point_size); }
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};
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}
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class FontCache {
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public:
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FontCache() = default;
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RefPtr<Gfx::Font const> get(FontSelector const&) const;
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void set(FontSelector const&, NonnullRefPtr<Gfx::Font const>);
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NonnullRefPtr<Gfx::Font const> scaled_font(Gfx::Font const&, float scale_factor);
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private:
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mutable HashMap<FontSelector, NonnullRefPtr<Gfx::Font const>> m_fonts;
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};
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