WindowHighlighterFactory class which passes the Window to the higlighter function
This commit is contained in:
Maxime Coste
parent
d1cc86d95d
commit
30bc1bad8f
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@ -98,7 +98,7 @@ HighlighterAndId colorize_regex_factory(Window& window,
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std::string id = "colre'" + params[0] + "'";
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return HighlighterAndId(id, std::bind(colorize_regex, std::placeholders::_1,
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ex, fg_color, bg_color));
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ex, fg_color, bg_color));
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}
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void expand_tabulations(DisplayBuffer& display_buffer)
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@ -178,6 +178,93 @@ void show_line_numbers(DisplayBuffer& display_buffer)
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}
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}
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void highlight_selections(Window& window, DisplayBuffer& display_buffer)
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{
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typedef std::pair<BufferIterator, BufferIterator> BufferRange;
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std::vector<BufferRange> selections;
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for (auto& sel : window.selections())
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selections.push_back(BufferRange(sel.begin(), sel.end()));
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std::sort(selections.begin(), selections.end(),
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[](const BufferRange& lhs, const BufferRange& rhs)
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{ return lhs.first < rhs.first; });
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auto atom_it = display_buffer.begin();
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auto sel_it = selections.begin();
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// underline each selections
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while (atom_it != display_buffer.end()
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and sel_it != selections.end())
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{
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BufferRange& sel = *sel_it;
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DisplayAtom& atom = *atom_it;
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if (atom.attribute() & Attributes::Final)
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{
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++atom_it;
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continue;
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}
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// [###------]
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if (atom.begin() >= sel.first and atom.begin() < sel.second and
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atom.end() > sel.second)
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{
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atom_it = display_buffer.split(atom_it, sel.second);
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atom_it->attribute() |= Attributes::Underline;
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++atom_it;
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++sel_it;
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}
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// [---###---]
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else if (atom.begin() < sel.first and atom.end() > sel.second)
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{
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atom_it = display_buffer.split(atom_it, sel.first);
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atom_it = display_buffer.split(++atom_it, sel.second);
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atom_it->attribute() |= Attributes::Underline;
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++atom_it;
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++sel_it;
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}
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// [------###]
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else if (atom.begin() < sel.first and atom.end() > sel.first)
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{
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atom_it = ++display_buffer.split(atom_it, sel.first);
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atom_it->attribute() |= Attributes::Underline;
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++atom_it;
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}
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// [#########]
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else if (atom.begin() >= sel.first and atom.end() <= sel.second)
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{
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atom_it->attribute() |= Attributes::Underline;
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++atom_it;
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}
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// [---------]
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else if (atom.begin() >= sel.second)
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++sel_it;
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// [---------]
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else if (atom.end() <= sel.first)
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++atom_it;
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else
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assert(false);
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}
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// invert selection last char
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for (auto& sel : window.selections())
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{
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const BufferIterator& last = sel.last();
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DisplayBuffer::iterator atom_it = display_buffer.atom_containing(last);
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if (atom_it == display_buffer.end())
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continue;
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if (atom_it->begin() < last)
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atom_it = ++display_buffer.split(atom_it, last);
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if (atom_it->end() > last + 1)
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atom_it = display_buffer.split(atom_it, last + 1);
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atom_it->attribute() |= Attributes::Reverse;
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}
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}
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template<void (*highlighter_func)(DisplayBuffer&)>
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class SimpleHighlighterFactory
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{
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@ -193,110 +280,20 @@ private:
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std::string m_id;
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};
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class SelectionsHighlighter
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template<void (*highlighter_func)(Window&, DisplayBuffer&)>
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class WindowHighlighterFactory
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{
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public:
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SelectionsHighlighter(Window& window)
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: m_window(window)
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WindowHighlighterFactory(const std::string& id) : m_id(id) {}
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HighlighterAndId operator()(Window& window,
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const HighlighterParameters& params) const
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{
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using namespace std::placeholders;
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return HighlighterAndId(m_id, std::bind(highlighter_func, std::ref(window), _1));
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}
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void operator()(DisplayBuffer& display_buffer)
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{
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typedef std::pair<BufferIterator, BufferIterator> BufferRange;
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std::vector<BufferRange> selections;
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for (auto& sel : m_window.selections())
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selections.push_back(BufferRange(sel.begin(), sel.end()));
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std::sort(selections.begin(), selections.end(),
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[](const BufferRange& lhs, const BufferRange& rhs)
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{ return lhs.first < rhs.first; });
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auto atom_it = display_buffer.begin();
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auto sel_it = selections.begin();
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// underline each selections
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while (atom_it != display_buffer.end()
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and sel_it != selections.end())
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{
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BufferRange& sel = *sel_it;
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DisplayAtom& atom = *atom_it;
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if (atom.attribute() & Attributes::Final)
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{
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++atom_it;
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continue;
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}
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// [###------]
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if (atom.begin() >= sel.first and atom.begin() < sel.second and
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atom.end() > sel.second)
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{
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atom_it = display_buffer.split(atom_it, sel.second);
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atom_it->attribute() |= Attributes::Underline;
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++atom_it;
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++sel_it;
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}
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// [---###---]
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else if (atom.begin() < sel.first and atom.end() > sel.second)
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{
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atom_it = display_buffer.split(atom_it, sel.first);
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atom_it = display_buffer.split(++atom_it, sel.second);
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atom_it->attribute() |= Attributes::Underline;
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++atom_it;
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++sel_it;
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}
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// [------###]
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else if (atom.begin() < sel.first and atom.end() > sel.first)
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{
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atom_it = ++display_buffer.split(atom_it, sel.first);
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atom_it->attribute() |= Attributes::Underline;
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++atom_it;
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}
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// [#########]
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else if (atom.begin() >= sel.first and atom.end() <= sel.second)
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{
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atom_it->attribute() |= Attributes::Underline;
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++atom_it;
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}
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// [---------]
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else if (atom.begin() >= sel.second)
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++sel_it;
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// [---------]
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else if (atom.end() <= sel.first)
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++atom_it;
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else
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assert(false);
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}
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// invert selection last char
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for (auto& sel : m_window.selections())
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{
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const BufferIterator& last = sel.last();
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DisplayBuffer::iterator atom_it = display_buffer.atom_containing(last);
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if (atom_it == display_buffer.end())
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continue;
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if (atom_it->begin() < last)
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atom_it = ++display_buffer.split(atom_it, last);
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if (atom_it->end() > last + 1)
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atom_it = display_buffer.split(atom_it, last + 1);
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atom_it->attribute() |= Attributes::Reverse;
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}
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}
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static HighlighterAndId create(Window& window,
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const HighlighterParameters& params)
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{
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return HighlighterAndId("highlight_selections",
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SelectionsHighlighter(window));
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}
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private:
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const Window& m_window;
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std::string m_id;
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};
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HighlighterAndId highlighter_group_factory(Window& window,
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@ -312,7 +309,7 @@ void register_highlighters()
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{
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HighlighterRegistry& registry = HighlighterRegistry::instance();
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registry.register_factory("highlight_selections", SelectionsHighlighter::create);
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registry.register_factory("highlight_selections", WindowHighlighterFactory<highlight_selections>("highlight_selections"));
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registry.register_factory("expand_tabs", SimpleHighlighterFactory<expand_tabulations>("expand_tabs"));
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registry.register_factory("number_lines", SimpleHighlighterFactory<show_line_numbers>("number_lines"));
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registry.register_factory("regex", colorize_regex_factory);
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