kakoune/src/window.hh

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#ifndef window_hh_INCLUDED
#define window_hh_INCLUDED
#include <functional>
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#include "buffer.hh"
#include "dynamic_buffer_iterator.hh"
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#include "display_buffer.hh"
#include "completion.hh"
#include "highlighter.hh"
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#include "filter.hh"
#include "idvaluemap.hh"
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namespace Kakoune
{
struct Selection
{
typedef std::vector<BufferString> CaptureList;
Selection(const BufferIterator& first, const BufferIterator& last,
const CaptureList& captures = CaptureList())
: m_first(first), m_last(last), m_captures(captures) {}
Selection(const BufferIterator& first, const BufferIterator& last,
CaptureList&& captures)
: m_first(first), m_last(last), m_captures(captures) {}
BufferIterator begin() const;
BufferIterator end() const;
const BufferIterator& first() const { return m_first; }
const BufferIterator& last() const { return m_last; }
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void merge_with(const Selection& selection);
BufferString capture(size_t index) const;
const CaptureList& captures() const { return m_captures; }
private:
DynamicBufferIterator m_first;
DynamicBufferIterator m_last;
CaptureList m_captures;
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};
typedef std::vector<Selection> SelectionList;
class IncrementalInserter;
class HighlighterGroup;
// A Window is an editing view onto a Buffer
//
// The Window class manage a set of selections and provides means to modify
// both the selections and the buffer. It also handle the display of the
// buffer with it's highlighters.
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class Window
{
public:
typedef BufferString String;
typedef std::function<Selection (const BufferIterator&)> Selector;
typedef std::function<SelectionList (const Selection&)> MultiSelector;
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void erase();
void insert(const String& string);
void append(const String& string);
void replace(const String& string);
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const BufferCoord& position() const { return m_position; }
DisplayCoord cursor_position() const;
BufferIterator cursor_iterator() const;
Buffer& buffer() const { return m_buffer; }
BufferIterator iterator_at(const DisplayCoord& window_pos) const;
DisplayCoord line_and_column_at(const BufferIterator& iterator) const;
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void move_cursor(const DisplayCoord& offset, bool append = false);
void move_cursor_to(const BufferIterator& iterator);
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void clear_selections();
void keep_selection(int index);
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void select(const Selector& selector, bool append = false);
void multi_select(const MultiSelector& selector);
BufferString selection_content() const;
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const SelectionList& selections() const { return m_selections.back(); }
void set_dimensions(const DisplayCoord& dimensions);
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const DisplayBuffer& display_buffer() const { return m_display_buffer; }
void update_display_buffer();
bool undo();
bool redo();
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std::string status_line() const;
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struct id_not_unique : public runtime_error
{
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id_not_unique(const std::string& id)
: runtime_error("id not unique: " + id) {}
};
void add_highlighter(HighlighterAndId&& highlighter);
void remove_highlighter(const std::string& id);
HighlighterGroup& get_highlighter_group(const std::string& id);
CandidateList complete_highlighterid(const std::string& prefix,
size_t cursor_pos);
CandidateList complete_highlighter_groupid(const std::string& prefix,
size_t cursor_pos);
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void add_filter(FilterAndId&& filter);
void remove_filter(const std::string& id);
CandidateList complete_filterid(const std::string& prefix,
size_t cursor_pos = std::string::npos);
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void push_selections();
void pop_selections();
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private:
friend class Buffer;
Window(Buffer& buffer);
Window(const Window&) = delete;
void check_invariant() const;
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void scroll_to_keep_cursor_visible_ifn();
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void erase_noundo();
void insert_noundo(const String& string);
void append_noundo(const String& string);
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SelectionList& selections() { return m_selections.back(); }
friend class IncrementalInserter;
IncrementalInserter* m_current_inserter;
Buffer& m_buffer;
BufferCoord m_position;
DisplayCoord m_dimensions;
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std::vector<SelectionList> m_selections;
DisplayBuffer m_display_buffer;
idvaluemap<std::string, HighlighterFunc> m_highlighters;
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idvaluemap<std::string, FilterFunc> m_filters;
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};
class IncrementalInserter
{
public:
enum class Mode
{
Insert,
Append,
Change,
InsertAtLineBegin,
AppendAtLineEnd,
OpenLineBelow,
OpenLineAbove
};
IncrementalInserter(Window& window, Mode mode = Mode::Insert);
~IncrementalInserter();
void insert(const Window::String& string);
void insert_capture(size_t index);
void erase();
void move_cursor(const DisplayCoord& offset);
private:
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void apply(Modification&& modification) const;
Window& m_window;
};
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}
#endif // window_hh_INCLUDED