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36a8ad9157
This will be the first step is making better use of system libraries like fontconfig and CoreText to load system fonts for use by the UI process and the CSS style computer.
79 lines
2.8 KiB
C++
79 lines
2.8 KiB
C++
/*
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* Copyright (c) 2024, Andrew Kaster <andrew@ladybird.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/Format.h>
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#include <AK/LexicalPath.h>
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#include <LibCore/Resource.h>
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#include <LibGfx/Font/PathFontProvider.h>
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#include <LibGfx/Font/ScaledFont.h>
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#include <LibGfx/Font/WOFF/Loader.h>
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namespace Gfx {
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PathFontProvider::PathFontProvider() = default;
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PathFontProvider::~PathFontProvider() = default;
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void PathFontProvider::load_all_fonts_from_uri(StringView uri)
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{
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auto root_or_error = Core::Resource::load_from_uri(uri);
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if (root_or_error.is_error()) {
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if (root_or_error.error().is_errno() && root_or_error.error().code() == ENOENT) {
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return;
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}
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dbgln("PathFontProvider::load_all_fonts_from_uri('{}'): {}", uri, root_or_error.error());
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return;
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}
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auto root = root_or_error.release_value();
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root->for_each_descendant_file([this](Core::Resource const& resource) -> IterationDecision {
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auto uri = resource.uri();
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auto path = LexicalPath(uri.bytes_as_string_view());
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if (path.has_extension(".ttf"sv) || path.has_extension(".ttc"sv)) {
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// FIXME: What about .otf
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if (auto font_or_error = Typeface::try_load_from_resource(resource); !font_or_error.is_error()) {
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auto font = font_or_error.release_value();
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auto& family = m_typeface_by_family.ensure(font->family(), [] {
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return Vector<NonnullRefPtr<Typeface>> {};
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});
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family.append(font);
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}
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} else if (path.has_extension(".woff"sv)) {
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if (auto font_or_error = WOFF::try_load_from_resource(resource); !font_or_error.is_error()) {
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auto font = font_or_error.release_value();
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auto& family = m_typeface_by_family.ensure(font->family(), [] {
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return Vector<NonnullRefPtr<Typeface>> {};
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});
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family.append(font);
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}
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}
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return IterationDecision::Continue;
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});
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}
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RefPtr<Gfx::Font> PathFontProvider::get_font(FlyString const& family, float point_size, unsigned weight, unsigned width, unsigned slope)
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{
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auto it = m_typeface_by_family.find(family);
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if (it == m_typeface_by_family.end())
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return nullptr;
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for (auto const& typeface : it->value) {
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if (typeface->weight() == weight && typeface->width() == width && typeface->slope() == slope)
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return typeface->scaled_font(point_size);
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}
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return nullptr;
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}
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void PathFontProvider::for_each_typeface_with_family_name(FlyString const& family_name, Function<void(Typeface const&)> callback)
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{
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auto it = m_typeface_by_family.find(family_name);
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if (it == m_typeface_by_family.end())
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return;
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for (auto const& typeface : it->value) {
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callback(*typeface);
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}
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}
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}
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