mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-04-28 02:27:19 +02:00
baa9b6cc34
This fixes an issue where having an emoji font first in the font-family cascade list would cause us to get the space width from the emoji font as well. We now look at adjacent text chunks when deciding which font to use for space widths, instead of just blindly obeying the font-family value.
68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
/*
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* Copyright (c) 2023-2024, 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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#pragma once
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#include <LibGfx/Font/Font.h>
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#include <LibGfx/Font/UnicodeRange.h>
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namespace Gfx {
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class FontCascadeList : public RefCounted<FontCascadeList> {
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public:
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static NonnullRefPtr<FontCascadeList> create()
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{
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return adopt_ref(*new FontCascadeList());
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}
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size_t size() const { return m_fonts.size(); }
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bool is_empty() const { return m_fonts.is_empty() && !m_last_resort_font; }
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Font const& first() const { return !m_fonts.is_empty() ? *m_fonts.first().font : *m_last_resort_font; }
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template<typename Callback>
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void for_each_font_entry(Callback callback) const
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{
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for (auto const& font : m_fonts)
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callback(font);
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}
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void add(NonnullRefPtr<Font const> font);
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void add(NonnullRefPtr<Font const> font, Vector<UnicodeRange> unicode_ranges);
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void extend(FontCascadeList const& other);
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Gfx::Font const& font_for_code_point(u32 code_point) const;
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bool equals(FontCascadeList const& other) const;
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struct Entry {
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NonnullRefPtr<Font const> font;
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struct RangeData {
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// The enclosing range is the union of all Unicode ranges. Used for fast skipping.
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UnicodeRange enclosing_range;
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Vector<UnicodeRange> unicode_ranges;
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};
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Optional<RangeData> range_data;
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};
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void set_last_resort_font(NonnullRefPtr<Font> font) { m_last_resort_font = move(font); }
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Font const& first_text_face() const
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{
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for (auto const& entry : m_fonts)
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if (!entry.font->is_emoji_font())
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return *entry.font;
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return first();
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}
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private:
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RefPtr<Font const> m_last_resort_font;
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Vector<Entry> m_fonts;
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};
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}
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