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67fe8d66b2
Before this change, we were only checking for actual glyph containment in a font if unicode ranges were specified. However that is not sufficient for emoji support, where we want to continue searching for a font until one containing emojis is found.
55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
/*
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* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibGfx/FontCascadeList.h>
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namespace Gfx {
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void FontCascadeList::add(NonnullRefPtr<Font> font)
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{
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m_fonts.append({ move(font), {} });
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}
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void FontCascadeList::add(NonnullRefPtr<Font> font, Vector<UnicodeRange> unicode_ranges)
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{
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m_fonts.append({ move(font), move(unicode_ranges) });
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}
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void FontCascadeList::extend(FontCascadeList const& other)
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{
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for (auto const& font : other.m_fonts) {
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m_fonts.append({ font.font, font.unicode_ranges });
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}
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}
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Gfx::Font const& FontCascadeList::font_for_code_point(u32 code_point) const
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{
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for (auto const& entry : m_fonts) {
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if (entry.unicode_ranges.has_value()) {
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for (auto const& range : *entry.unicode_ranges) {
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if (range.contains(code_point) && entry.font->contains_glyph(code_point))
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return entry.font;
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}
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} else if (entry.font->contains_glyph(code_point)) {
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return entry.font;
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}
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}
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return *m_last_resort_font;
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}
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bool FontCascadeList::equals(FontCascadeList const& other) const
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{
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if (m_fonts.size() != other.m_fonts.size())
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return false;
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for (size_t i = 0; i < m_fonts.size(); ++i) {
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if (m_fonts[i].font != other.m_fonts[i].font)
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return false;
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}
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return true;
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}
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}
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