418f9ceadd
In case we've looked up the family name before and cached the result of font fallback, we now invalidate any cached entries with the same family name so that the next lookup may consider the newly downloaded font.
49 lines
1.5 KiB
C++
49 lines
1.5 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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#include <AK/DeprecatedFlyString.h>
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#include <LibGfx/Font/Font.h>
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#include <LibWeb/FontCache.h>
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namespace Web {
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RefPtr<Gfx::Font const> FontCache::get(FontSelector const& font_selector) const
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{
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auto cached_font = m_fonts.get(font_selector);
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if (cached_font.has_value())
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return cached_font.value();
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return nullptr;
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}
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NonnullRefPtr<Gfx::Font const> FontCache::scaled_font(Gfx::Font const& font, float scale_factor)
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{
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auto device_font_pt_size = font.point_size() * scale_factor;
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FontSelector font_selector = { FlyString::from_deprecated_fly_string(font.family()).release_value_but_fixme_should_propagate_errors(), device_font_pt_size, font.weight(), font.width(), font.slope() };
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if (auto cached_font = get(font_selector)) {
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return *cached_font;
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}
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if (auto font_with_device_pt_size = font.with_size(device_font_pt_size)) {
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set(font_selector, *font_with_device_pt_size);
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return font_with_device_pt_size.release_nonnull();
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}
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return font;
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}
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void FontCache::set(FontSelector const& font_selector, NonnullRefPtr<Gfx::Font const> font)
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{
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m_fonts.set(font_selector, move(font));
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}
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void FontCache::did_load_font(Badge<CSS::StyleComputer>, FlyString const& family_name)
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{
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m_fonts.remove_all_matching([&family_name](auto& key, auto&) -> bool {
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return key.family == family_name;
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});
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}
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}
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