home/src/ncurses_ui.hh
2020-03-27 07:54:21 +11:00

183 lines
4.3 KiB
C++

#ifndef ncurses_hh_INCLUDED
#define ncurses_hh_INCLUDED
#include "array_view.hh"
#include "coord.hh"
#include "display_buffer.hh"
#include "event_manager.hh"
#include "face.hh"
#include "hash_map.hh"
#include "optional.hh"
#include "string.hh"
#include "user_interface.hh"
#include <termios.h>
namespace Kakoune
{
struct DisplayAtom;
struct NCursesWin;
class NCursesUI : public UserInterface, public Singleton<NCursesUI>
{
public:
NCursesUI();
~NCursesUI() override;
NCursesUI(const NCursesUI&) = delete;
NCursesUI& operator=(const NCursesUI&) = delete;
bool is_ok() const override { return (bool)m_window; }
void draw(const DisplayBuffer& display_buffer,
const Face& default_face,
const Face& padding_face) override;
void draw_status(const DisplayLine& status_line,
const DisplayLine& mode_line,
const Face& default_face) override;
void menu_show(ConstArrayView<DisplayLine> items,
DisplayCoord anchor, Face fg, Face bg,
MenuStyle style) override;
void menu_select(int selected) override;
void menu_hide() override;
void info_show(const DisplayLine& title, const DisplayLineList& content,
DisplayCoord anchor, Face face,
InfoStyle style) override;
void info_hide() override;
void set_cursor(CursorMode mode, DisplayCoord coord) override;
void refresh(bool force) override;
DisplayCoord dimensions() override;
void set_on_key(OnKeyCallback callback) override;
void set_ui_options(const Options& options) override;
static void abort();
void suspend();
struct Rect
{
DisplayCoord pos;
DisplayCoord size;
};
private:
void check_resize(bool force = false);
void redraw(bool force);
Optional<Key> get_next_key();
struct Palette
{
private:
static const std::initializer_list<HashMap<Kakoune::Color, int>::Item> default_colors;
using ColorPair = std::pair<Color, Color>;
HashMap<Color, int, MemoryDomain::Faces> m_colors = default_colors;
HashMap<ColorPair, int, MemoryDomain::Faces> m_colorpairs;
int m_next_color = 16;
int m_next_pair = 1;
bool m_change_colors = true;
int get_color(Color color);
public:
int get_color_pair(const Face& face);
bool get_change_colors() const { return m_change_colors; }
bool set_change_colors(bool change_colors);
};
Palette m_palette;
struct Window : Rect
{
void create(const DisplayCoord& pos, const DisplayCoord& size);
void destroy();
void refresh(bool force);
void move_cursor(DisplayCoord coord);
void draw(Palette& palette, ConstArrayView<DisplayAtom> atoms,
const Face& default_face);
explicit operator bool() const { return win; }
NCursesWin* win = nullptr;
int m_active_pair = -1;
};
Window m_window;
DisplayCoord m_dimensions;
termios m_original_termios{};
void set_terminal_mode() const;
void restore_terminal_mode() const;
struct Menu : Window
{
Vector<DisplayLine, MemoryDomain::Display> items;
Face fg;
Face bg;
DisplayCoord anchor;
MenuStyle style;
int selected_item = 0;
int first_item = 0;
int columns = 1;
} m_menu;
void draw_menu();
LineCount content_line_offset() const;
struct Info : Window
{
DisplayLine title;
DisplayLineList content;
Face face;
DisplayCoord anchor;
InfoStyle style;
} m_info;
struct Cursor
{
CursorMode mode;
DisplayCoord coord;
} m_cursor;
FDWatcher m_stdin_watcher;
OnKeyCallback m_on_key;
bool m_status_on_top = false;
ConstArrayView<StringView> m_assistant;
void enable_mouse(bool enabled);
bool m_mouse_enabled = false;
int m_wheel_up_button = 4;
int m_wheel_down_button = 5;
int m_wheel_scroll_amount = 3;
int m_mouse_state = 0;
static constexpr int default_shift_function_key = 12;
int m_shift_function_key = default_shift_function_key;
bool m_set_title = true;
bool m_dirty = false;
bool m_resize_pending = false;
void set_resize_pending();
ColumnCount m_status_len = 0;
};
}
#endif // ncurses_hh_INCLUDED