2359df0f17
The UI now can send a 'Scroll' key, whose value is the scrolling amount encoded as a signed integer. This replaces the MouseWheelUp and MouseWheelDown keys. The NCursesUI now has a ncurses_wheel_scroll_amount ui_option that controls that amount, it can be negative to swap scrolling direction. Fixes #3045
163 lines
3.9 KiB
C++
163 lines
3.9 KiB
C++
#ifndef ncurses_hh_INCLUDED
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#define ncurses_hh_INCLUDED
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#include "array_view.hh"
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#include "coord.hh"
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#include "event_manager.hh"
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#include "face.hh"
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#include "hash_map.hh"
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#include "optional.hh"
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#include "string.hh"
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#include "user_interface.hh"
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namespace Kakoune
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{
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struct NCursesWin;
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class NCursesUI : public UserInterface
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{
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public:
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NCursesUI();
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~NCursesUI() override;
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NCursesUI(const NCursesUI&) = delete;
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NCursesUI& operator=(const NCursesUI&) = delete;
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bool is_ok() const override { return m_window != nullptr; }
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void draw(const DisplayBuffer& display_buffer,
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const Face& default_face,
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const Face& padding_face) override;
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void draw_status(const DisplayLine& status_line,
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const DisplayLine& mode_line,
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const Face& default_face) override;
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void menu_show(ConstArrayView<DisplayLine> items,
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DisplayCoord anchor, Face fg, Face bg,
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MenuStyle style) override;
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void menu_select(int selected) override;
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void menu_hide() override;
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void info_show(StringView title, StringView content,
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DisplayCoord anchor, Face face,
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InfoStyle style) override;
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void info_hide() override;
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void set_cursor(CursorMode mode, DisplayCoord coord) override;
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void refresh(bool force) override;
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DisplayCoord dimensions() override;
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void set_on_key(OnKeyCallback callback) override;
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void set_ui_options(const Options& options) override;
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static void abort();
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struct Rect
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{
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DisplayCoord pos;
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DisplayCoord size;
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};
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private:
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void check_resize(bool force = false);
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void redraw();
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int get_color(Color color);
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int get_color_pair(const Face& face);
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void set_face(NCursesWin* window, Face face, const Face& default_face);
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void draw_line(NCursesWin* window, const DisplayLine& line,
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ColumnCount col_index, ColumnCount max_column,
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const Face& default_face);
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Optional<Key> get_next_key();
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NCursesWin* m_window = nullptr;
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DisplayCoord m_dimensions;
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using ColorPair = std::pair<Color, Color>;
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HashMap<Color, int, MemoryDomain::Faces> m_colors;
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HashMap<ColorPair, int, MemoryDomain::Faces> m_colorpairs;
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int m_next_color = 16;
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int m_next_pair = 1;
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int m_active_pair = -1;
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struct Window : Rect
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{
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void create(const DisplayCoord& pos, const DisplayCoord& size);
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void destroy();
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void refresh();
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explicit operator bool() const { return win; }
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NCursesWin* win = nullptr;
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};
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void mark_dirty(const Window& win);
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struct Menu : Window
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{
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Vector<DisplayLine, MemoryDomain::Display> items;
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Face fg;
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Face bg;
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DisplayCoord anchor;
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MenuStyle style;
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int selected_item = 0;
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int first_item = 0;
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int columns = 1;
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} m_menu;
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void draw_menu();
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LineCount content_line_offset() const;
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struct Info : Window
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{
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String title;
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String content;
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Face face;
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DisplayCoord anchor;
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InfoStyle style;
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} m_info;
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struct Cursor
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{
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CursorMode mode;
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DisplayCoord coord;
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} m_cursor;
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FDWatcher m_stdin_watcher;
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OnKeyCallback m_on_key;
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bool m_status_on_top = false;
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ConstArrayView<StringView> m_assistant;
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void enable_mouse(bool enabled);
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bool m_mouse_enabled = false;
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int m_wheel_up_button = 4;
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int m_wheel_down_button = 5;
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int m_wheel_scroll_amount = 3;
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static constexpr int default_shift_function_key = 12;
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int m_shift_function_key = default_shift_function_key;
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bool m_set_title = true;
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bool m_change_colors = true;
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bool m_builtin_key_parser = false;
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bool m_dirty = false;
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bool m_resize_pending = false;
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void set_resize_pending();
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ColumnCount m_status_len = 0;
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};
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}
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#endif // ncurses_hh_INCLUDED
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