130 lines
3.0 KiB
C++
130 lines
3.0 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 "selection.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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namespace Kakoune
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{
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class Register;
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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
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{
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public:
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typedef std::function<SelectionAndCaptures (const Selection&)> Selector;
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typedef std::function<SelectionAndCapturesList (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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void insert(const memoryview<String>& strings);
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void append(const String& string);
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void append(const memoryview<String>& strings);
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void replace(const String& string);
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void push_selections();
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void pop_selections();
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void move_selections(const BufferCoord& offset, bool append = false);
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void clear_selections();
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void keep_selection(int index);
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void select(const BufferIterator& iterator);
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void select(const Selector& selector, bool append = false);
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void multi_select(const MultiSelector& selector);
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const SelectionList& selections() const { return m_selections.back(); }
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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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void add_filter(FilterAndId&& filter);
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void remove_filter(const std::string& id);
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CandidateList complete_filterid(const std::string& prefix,
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size_t cursor_pos = std::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 class 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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virtual void on_incremental_insertion_begin() {}
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virtual void on_incremental_insertion_end() {}
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Buffer& m_buffer;
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std::vector<SelectionList> m_selections;
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idvaluemap<std::string, FilterFunc> 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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enum class Mode
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{
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Insert,
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Append,
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Change,
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InsertAtLineBegin,
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AppendAtLineEnd,
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OpenLineBelow,
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OpenLineAbove
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};
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IncrementalInserter(Editor& editor, Mode mode = Mode::Insert);
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~IncrementalInserter();
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void insert(const String& string);
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void insert(const Register& reg);
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void erase();
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void move_cursors(const BufferCoord& offset);
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Buffer& buffer() const { return m_editor.buffer(); }
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private:
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void apply(Modification&& modification) const;
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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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