Editor merge selections when they overlap
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5bb37ad755
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@ -99,6 +99,30 @@ std::vector<String> Editor::selections_content() const
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return contents;
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return contents;
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}
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}
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static bool overlaps(const SelectionAndCaptures& lhs,
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const SelectionAndCaptures& rhs)
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{
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return (lhs.first() <= rhs.first() and lhs.last() >= rhs.first()) or
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(lhs.first() <= rhs.last() and lhs.last() >= rhs.last());
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}
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static void merge_overlapping(SelectionAndCapturesList& selections)
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{
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for (size_t i = 0; i < selections.size(); ++i)
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{
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for (size_t j = i+1; j < selections.size();)
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{
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if (overlaps(selections[i], selections[j]))
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{
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selections[i].selection.merge_with(selections[j].selection);
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selections.erase(selections.begin() + j);
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}
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else
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++j;
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}
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}
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}
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void Editor::move_selections(CharCount offset, SelectMode mode)
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void Editor::move_selections(CharCount offset, SelectMode mode)
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{
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{
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assert(mode == SelectMode::Replace or mode == SelectMode::Extend);
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assert(mode == SelectMode::Replace or mode == SelectMode::Extend);
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@ -110,6 +134,7 @@ void Editor::move_selections(CharCount offset, SelectMode mode)
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utf8::previous(buffer().iterator_at_line_end(last)));
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utf8::previous(buffer().iterator_at_line_end(last)));
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sel.selection = Selection(mode == SelectMode::Extend ? sel.first() : last, last);
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sel.selection = Selection(mode == SelectMode::Extend ? sel.first() : last, last);
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}
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}
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merge_overlapping(m_selections);
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}
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}
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void Editor::move_selections(LineCount offset, SelectMode mode)
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void Editor::move_selections(LineCount offset, SelectMode mode)
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@ -122,6 +147,7 @@ void Editor::move_selections(LineCount offset, SelectMode mode)
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BufferIterator last = utf8::finish(m_buffer.iterator_at(pos, true));
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BufferIterator last = utf8::finish(m_buffer.iterator_at(pos, true));
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sel.selection = Selection(mode == SelectMode::Extend ? sel.first() : last, last);
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sel.selection = Selection(mode == SelectMode::Extend ? sel.first() : last, last);
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}
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}
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merge_overlapping(m_selections);
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}
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}
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void Editor::clear_selections()
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void Editor::clear_selections()
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@ -181,9 +207,9 @@ void Editor::select(const Selector& selector, SelectMode mode)
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if (res.captures.empty())
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if (res.captures.empty())
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res.captures = sel.captures;
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res.captures = sel.captures;
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m_selections.push_back(res);
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m_selections.push_back(res);
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return;
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}
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}
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else
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{
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for (auto& sel : m_selections)
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for (auto& sel : m_selections)
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{
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{
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SelectionAndCaptures res = selector(sel.selection);
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SelectionAndCaptures res = selector(sel.selection);
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@ -195,6 +221,8 @@ void Editor::select(const Selector& selector, SelectMode mode)
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if (not res.captures.empty())
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if (not res.captures.empty())
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sel.captures = std::move(res.captures);
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sel.captures = std::move(res.captures);
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}
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}
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}
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merge_overlapping(m_selections);
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}
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}
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struct nothing_selected : public runtime_error
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struct nothing_selected : public runtime_error
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@ -222,6 +250,7 @@ void Editor::multi_select(const MultiSelector& selector)
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if (new_selections.empty())
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if (new_selections.empty())
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throw nothing_selected();
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throw nothing_selected();
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merge_overlapping(new_selections);
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m_selections = std::move(new_selections);
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m_selections = std::move(new_selections);
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}
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}
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