143 lines
3.4 KiB
C++
143 lines
3.4 KiB
C++
#ifndef editor_hh_INCLUDED
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#define editor_hh_INCLUDED
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#include "buffer.hh"
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#include "dynamic_selection_list.hh"
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#include "filter.hh"
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#include "idvaluemap.hh"
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#include "memoryview.hh"
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#include "filter_group.hh"
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namespace Kakoune
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{
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class Register;
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enum class SelectMode
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{
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Replace,
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Extend,
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Append,
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ReplaceLast,
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};
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enum class InsertMode : unsigned
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{
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Insert,
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Append,
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Replace,
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InsertAtLineBegin,
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InsertAtNextLineBegin,
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AppendAtLineEnd,
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OpenLineBelow,
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OpenLineAbove
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};
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// An Editor is a buffer mutator
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//
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// The Editor class provides methods to manipulate a set of selections
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// and to use these selections to mutate it's buffer.
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class Editor : public SafeCountable
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{
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public:
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typedef std::function<Selection (const Selection&)> Selector;
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typedef std::function<SelectionList (const Selection&)> MultiSelector;
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Editor(Buffer& buffer);
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virtual ~Editor() {}
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Buffer& buffer() const { return *m_buffer; }
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void erase();
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void insert(const String& string,
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InsertMode mode = InsertMode::Insert);
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void insert(const memoryview<String>& strings,
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InsertMode mode = InsertMode::Insert);
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void move_selections(LineCount move,
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SelectMode mode = SelectMode::Replace);
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void move_selections(CharCount move,
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SelectMode mode = SelectMode::Replace);
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void clear_selections();
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void flip_selections();
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void keep_selection(int index);
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void remove_selection(int index);
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void select(const BufferIterator& it,
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SelectMode mode = SelectMode::Replace)
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{ select(Selection{ it, it }, mode); }
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void select(const Selection& sel,
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SelectMode mode = SelectMode::Replace);
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void select(const Selector& selector,
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SelectMode mode = SelectMode::Replace);
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void select(SelectionList selections);
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void multi_select(const MultiSelector& selector);
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const SelectionList& selections() const { return m_selections; }
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std::vector<String> selections_content() const;
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bool undo();
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bool redo();
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FilterGroup& filters() { return m_filters; }
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CandidateList complete_filterid(const String& prefix,
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size_t cursor_pos = String::npos);
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bool is_editing() const { return m_edition_level!= 0; }
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private:
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friend struct scoped_edition;
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void begin_edition();
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void end_edition();
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int m_edition_level;
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void check_invariant() const;
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friend class IncrementalInserter;
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safe_ptr<Buffer> m_buffer;
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DynamicSelectionList m_selections;
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FilterGroup m_filters;
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};
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struct scoped_edition
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{
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scoped_edition(Editor& editor)
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: m_editor(editor)
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{ m_editor.begin_edition(); }
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~scoped_edition()
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{ m_editor.end_edition(); }
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private:
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Editor& m_editor;
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};
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// An IncrementalInserter manage insert mode
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class IncrementalInserter
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{
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public:
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IncrementalInserter(Editor& editor, InsertMode mode = InsertMode::Insert);
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~IncrementalInserter();
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void insert(String content);
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void insert(const memoryview<String>& strings);
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void erase();
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void move_cursors(CharCount move);
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void move_cursors(LineCount move);
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Buffer& buffer() const { return m_editor.buffer(); }
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Editor& editor() const { return m_editor; }
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private:
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InsertMode m_mode;
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Editor& m_editor;
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scoped_edition m_edition;
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};
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}
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#endif // editor_hh_INCLUDED
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