Use a cache for region highlighter
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parent
054ae08a9f
commit
35f12bc5a0
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@ -73,9 +73,8 @@ public:
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void operator()(const Window& window, DisplayBuffer& display_buffer)
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{
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const Buffer& buffer = window.buffer();
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update_cache_ifn(buffer, display_buffer.range());
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for (auto& match : m_caches[&buffer].m_matches)
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auto& cache = update_cache_ifn(window.buffer(), display_buffer.range());
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for (auto& match : cache.m_matches)
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{
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for (size_t n = 0; n < match.size(); ++n)
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{
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@ -101,14 +100,14 @@ private:
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Regex m_regex;
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ColorSpec m_colors;
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void update_cache_ifn(const Buffer& buffer, const BufferRange& range)
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MatchesCache& update_cache_ifn(const Buffer& buffer, const BufferRange& range)
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{
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MatchesCache& cache = m_caches[&buffer];
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if (buffer.timestamp() == cache.m_timestamp and
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range.first >= cache.m_range.first and
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range.second <= cache.m_range.second)
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return;
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return cache;
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cache.m_range.first = buffer.clamp({range.first.line - 10, 0});
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cache.m_range.second = buffer.next(buffer.clamp({range.second.line + 10, INT_MAX}));
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@ -125,6 +124,7 @@ private:
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for (auto& sub : *re_it)
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match.emplace_back(sub.first.coord(), sub.second.coord());
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}
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return cache;
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}
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};
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@ -431,10 +431,34 @@ public:
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void operator()(const Window& window, DisplayBuffer& display_buffer)
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{
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auto& buffer = window.buffer();
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auto& cache = update_cache_ifn(window.buffer());
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for (auto& pair : cache.regions)
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highlight_range(display_buffer, pair.first, pair.second, true,
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[this](DisplayAtom& atom) { atom.colors = m_colors; });
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}
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private:
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String m_begin;
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String m_end;
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String m_ignore_prefix;
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ColorPair m_colors;
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struct RegionCache
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{
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size_t timestamp = -1;
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std::vector<std::pair<BufferCoord, BufferCoord>> regions;
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};
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std::unordered_map<const Buffer*, RegionCache> m_cache;
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RegionCache& update_cache_ifn(const Buffer& buffer)
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{
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RegionCache& cache = m_cache[&buffer];
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if (cache.timestamp == buffer.timestamp())
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return cache;
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cache.regions.clear();
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auto end = buffer.end();
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auto reg_beg = std::search(buffer.begin(), end,
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m_begin.begin(), m_begin.end());
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m_begin.begin(), m_begin.end());
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while (reg_beg != end)
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{
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auto reg_end = reg_beg + m_begin.length();
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@ -448,18 +472,14 @@ public:
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std::equal(m_ignore_prefix.begin(), m_ignore_prefix.end(),
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reg_end - m_end.length() - m_ignore_prefix.length()));
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highlight_range(display_buffer, reg_beg.coord(), reg_end.coord(), true,
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[this](DisplayAtom& atom) { atom.colors = m_colors; });
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cache.regions.emplace_back(reg_beg.coord(), reg_end.coord());
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if (reg_end == end)
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break;
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reg_beg = std::search(reg_end, end, m_begin.begin(), m_begin.end());
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}
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cache.timestamp = buffer.timestamp();
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return cache;
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}
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private:
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String m_begin;
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String m_end;
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String m_ignore_prefix;
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ColorPair m_colors;
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};
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HighlighterAndId region_factory(HighlighterParameters params)
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