146 lines
3.3 KiB
C++
146 lines
3.3 KiB
C++
#ifndef window_hh_INCLUDED
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#define window_hh_INCLUDED
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#include <functional>
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#include "line_and_column.hh"
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#include "buffer.hh"
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#include "display_buffer.hh"
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namespace Kakoune
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{
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struct WindowCoord : LineAndColumn<WindowCoord>
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{
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WindowCoord(int line = 0, int column = 0)
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: LineAndColumn(line, column) {}
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};
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struct Selection
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{
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Selection(const BufferIterator& first, const BufferIterator& last)
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: m_first(first), m_last(last) {}
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BufferIterator begin() const;
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BufferIterator end() const;
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const BufferIterator& first() const { return m_first; }
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const BufferIterator& last() const { return m_last; }
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void offset(int offset);
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private:
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BufferIterator m_first;
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BufferIterator m_last;
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};
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typedef std::vector<Selection> SelectionList;
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class IncrementalInserter;
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class Window
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{
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public:
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typedef BufferString String;
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typedef std::function<Selection (const BufferIterator&)> Selector;
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enum class SelectMode
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{
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Normal,
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Append,
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LineAppend,
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};
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void erase();
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void insert(const String& string);
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void append(const String& string);
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const BufferCoord& position() const { return m_position; }
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WindowCoord cursor_position() const;
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Buffer& buffer() const { return m_buffer; }
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BufferCoord window_to_buffer(const WindowCoord& window_pos) const;
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WindowCoord buffer_to_window(const BufferCoord& buffer_pos) const;
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BufferIterator iterator_at(const WindowCoord& window_pos) const;
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WindowCoord line_and_column_at(const BufferIterator& iterator) const;
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void move_cursor(const WindowCoord& offset);
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void move_cursor_to(const WindowCoord& new_pos);
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void clear_selections();
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void select(const Selector& selector);
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BufferString selection_content() const;
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void set_dimensions(const WindowCoord& dimensions);
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const DisplayBuffer& display_buffer() const { return m_display_buffer; }
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void update_display_buffer();
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bool undo();
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bool redo();
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SelectMode select_mode() const { return m_select_mode; }
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void set_select_mode(SelectMode select_mode) { m_select_mode = select_mode; }
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std::string status_line() const;
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private:
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friend class Buffer;
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Window(Buffer& buffer);
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Window(const Window&) = delete;
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void check_invariant() const;
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void scroll_to_keep_cursor_visible_ifn();
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void erase_noundo();
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void insert_noundo(const String& string);
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void append_noundo(const String& string);
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friend class IncrementalInserter;
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IncrementalInserter* m_current_inserter;
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friend class HighlightSelections;
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SelectMode m_select_mode;
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Buffer& m_buffer;
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BufferCoord m_position;
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WindowCoord m_dimensions;
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SelectionList m_selections;
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DisplayBuffer m_display_buffer;
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typedef std::vector<std::function<void (DisplayBuffer&)>> FilterList;
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FilterList m_filters;
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};
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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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OpenLineBelow,
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OpenLineAbove
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};
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IncrementalInserter(Window& window, Mode mode = Mode::Insert);
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~IncrementalInserter();
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void insert(const Window::String& string);
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void erase();
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void move_cursor(const WindowCoord& offset);
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private:
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Window& m_window;
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};
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}
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#endif // window_hh_INCLUDED
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