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Serenity Operating System
1/*
2 * Copyright (c) 2018-2023, Andreas Kling <kling@serenityos.org>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#pragma once
8
9#include <AK/FlyString.h>
10#include <AK/HashMap.h>
11#include <LibGfx/Font/Font.h>
12#include <LibGfx/Forward.h>
13
14struct FontSelector {
15 FlyString family;
16 float point_size { 0 };
17 int weight { 0 };
18 int width { 0 };
19 int slope { 0 };
20
21 bool operator==(FontSelector const& other) const
22 {
23 return family == other.family && point_size == other.point_size && weight == other.weight && width == other.width && slope == other.slope;
24 }
25};
26
27namespace AK {
28template<>
29struct Traits<FontSelector> : public GenericTraits<FontSelector> {
30 static unsigned hash(FontSelector const& key) { return pair_int_hash(pair_int_hash(key.family.hash(), key.weight), key.point_size); }
31};
32}
33
34class FontCache {
35public:
36 static FontCache& the();
37 RefPtr<Gfx::Font const> get(FontSelector const&) const;
38 void set(FontSelector const&, NonnullRefPtr<Gfx::Font const>);
39
40private:
41 FontCache() = default;
42 mutable HashMap<FontSelector, NonnullRefPtr<Gfx::Font const>> m_fonts;
43};