1035 lines
32 KiB
C++
1035 lines
32 KiB
C++
#include "ncurses_ui.hh"
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#include "containers.hh"
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#include "display_buffer.hh"
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#include "event_manager.hh"
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#include "keys.hh"
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#include <algorithm>
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#define NCURSES_OPAQUE 0
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#define NCURSES_INTERNALS
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#include <ncurses.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <sys/ioctl.h>
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#include <termios.h>
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#include <unistd.h>
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constexpr char control(char c) { return c & 037; }
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namespace Kakoune
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{
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using std::min;
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using std::max;
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struct NCursesWin : WINDOW {};
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static constexpr StringView assistant_cat[] =
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{ R"( ___ )",
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R"( (__ \ )",
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R"( / / ╭)",
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R"( .' '·. │)",
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R"( ' ” │)",
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R"( ╰ /\_/| │)",
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R"( | . \ │)",
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R"( ╰_J` | | | ╯)",
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R"( ' \__- _/ )",
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R"( \_\ \_\ )",
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R"( )"};
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static constexpr StringView assistant_clippy[] =
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{ " ╭──╮ ",
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" │ │ ",
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" @ @ ╭",
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" ││ ││ │",
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" ││ ││ ╯",
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" │╰─╯│ ",
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" ╰───╯ ",
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" " };
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static void set_attribute(WINDOW* window, int attribute, bool on)
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{
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if (on)
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wattron(window, attribute);
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else
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wattroff(window, attribute);
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}
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template<typename T> T sq(T x) { return x * x; }
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constexpr struct { unsigned char r, g, b; } builtin_colors[] = {
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{0x00,0x00,0x00}, {0x80,0x00,0x00}, {0x00,0x80,0x00}, {0x80,0x80,0x00},
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{0x00,0x00,0x80}, {0x80,0x00,0x80}, {0x00,0x80,0x80}, {0xc0,0xc0,0xc0},
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{0x80,0x80,0x80}, {0xff,0x00,0x00}, {0x00,0xff,0x00}, {0xff,0xff,0x00},
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{0x00,0x00,0xff}, {0xff,0x00,0xff}, {0x00,0xff,0xff}, {0xff,0xff,0xff},
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{0x00,0x00,0x00}, {0x00,0x00,0x5f}, {0x00,0x00,0x87}, {0x00,0x00,0xaf},
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{0x00,0x00,0xd7}, {0x00,0x00,0xff}, {0x00,0x5f,0x00}, {0x00,0x5f,0x5f},
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{0x00,0x5f,0x87}, {0x00,0x5f,0xaf}, {0x00,0x5f,0xd7}, {0x00,0x5f,0xff},
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{0x00,0x87,0x00}, {0x00,0x87,0x5f}, {0x00,0x87,0x87}, {0x00,0x87,0xaf},
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{0x00,0x87,0xd7}, {0x00,0x87,0xff}, {0x00,0xaf,0x00}, {0x00,0xaf,0x5f},
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{0x00,0xaf,0x87}, {0x00,0xaf,0xaf}, {0x00,0xaf,0xd7}, {0x00,0xaf,0xff},
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{0x00,0xd7,0x00}, {0x00,0xd7,0x5f}, {0x00,0xd7,0x87}, {0x00,0xd7,0xaf},
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{0x00,0xd7,0xd7}, {0x00,0xd7,0xff}, {0x00,0xff,0x00}, {0x00,0xff,0x5f},
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{0x00,0xff,0x87}, {0x00,0xff,0xaf}, {0x00,0xff,0xd7}, {0x00,0xff,0xff},
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{0x5f,0x00,0x00}, {0x5f,0x00,0x5f}, {0x5f,0x00,0x87}, {0x5f,0x00,0xaf},
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{0x5f,0x00,0xd7}, {0x5f,0x00,0xff}, {0x5f,0x5f,0x00}, {0x5f,0x5f,0x5f},
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{0x5f,0x5f,0x87}, {0x5f,0x5f,0xaf}, {0x5f,0x5f,0xd7}, {0x5f,0x5f,0xff},
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{0x5f,0x87,0x00}, {0x5f,0x87,0x5f}, {0x5f,0x87,0x87}, {0x5f,0x87,0xaf},
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{0x5f,0x87,0xd7}, {0x5f,0x87,0xff}, {0x5f,0xaf,0x00}, {0x5f,0xaf,0x5f},
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{0x5f,0xaf,0x87}, {0x5f,0xaf,0xaf}, {0x5f,0xaf,0xd7}, {0x5f,0xaf,0xff},
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{0x5f,0xd7,0x00}, {0x5f,0xd7,0x5f}, {0x5f,0xd7,0x87}, {0x5f,0xd7,0xaf},
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{0x5f,0xd7,0xd7}, {0x5f,0xd7,0xff}, {0x5f,0xff,0x00}, {0x5f,0xff,0x5f},
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{0x5f,0xff,0x87}, {0x5f,0xff,0xaf}, {0x5f,0xff,0xd7}, {0x5f,0xff,0xff},
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{0x87,0x00,0x00}, {0x87,0x00,0x5f}, {0x87,0x00,0x87}, {0x87,0x00,0xaf},
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{0x87,0x00,0xd7}, {0x87,0x00,0xff}, {0x87,0x5f,0x00}, {0x87,0x5f,0x5f},
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{0x87,0x5f,0x87}, {0x87,0x5f,0xaf}, {0x87,0x5f,0xd7}, {0x87,0x5f,0xff},
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{0x87,0x87,0x00}, {0x87,0x87,0x5f}, {0x87,0x87,0x87}, {0x87,0x87,0xaf},
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{0x87,0x87,0xd7}, {0x87,0x87,0xff}, {0x87,0xaf,0x00}, {0x87,0xaf,0x5f},
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{0x87,0xaf,0x87}, {0x87,0xaf,0xaf}, {0x87,0xaf,0xd7}, {0x87,0xaf,0xff},
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{0x87,0xd7,0x00}, {0x87,0xd7,0x5f}, {0x87,0xd7,0x87}, {0x87,0xd7,0xaf},
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{0x87,0xd7,0xd7}, {0x87,0xd7,0xff}, {0x87,0xff,0x00}, {0x87,0xff,0x5f},
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{0x87,0xff,0x87}, {0x87,0xff,0xaf}, {0x87,0xff,0xd7}, {0x87,0xff,0xff},
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{0xaf,0x00,0x00}, {0xaf,0x00,0x5f}, {0xaf,0x00,0x87}, {0xaf,0x00,0xaf},
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{0xaf,0x00,0xd7}, {0xaf,0x00,0xff}, {0xaf,0x5f,0x00}, {0xaf,0x5f,0x5f},
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{0xaf,0x5f,0x87}, {0xaf,0x5f,0xaf}, {0xaf,0x5f,0xd7}, {0xaf,0x5f,0xff},
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{0xaf,0x87,0x00}, {0xaf,0x87,0x5f}, {0xaf,0x87,0x87}, {0xaf,0x87,0xaf},
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{0xaf,0x87,0xd7}, {0xaf,0x87,0xff}, {0xaf,0xaf,0x00}, {0xaf,0xaf,0x5f},
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{0xaf,0xaf,0x87}, {0xaf,0xaf,0xaf}, {0xaf,0xaf,0xd7}, {0xaf,0xaf,0xff},
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{0xaf,0xd7,0x00}, {0xaf,0xd7,0x5f}, {0xaf,0xd7,0x87}, {0xaf,0xd7,0xaf},
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{0xaf,0xd7,0xd7}, {0xaf,0xd7,0xff}, {0xaf,0xff,0x00}, {0xaf,0xff,0x5f},
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{0xaf,0xff,0x87}, {0xaf,0xff,0xaf}, {0xaf,0xff,0xd7}, {0xaf,0xff,0xff},
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{0xd7,0x00,0x00}, {0xd7,0x00,0x5f}, {0xd7,0x00,0x87}, {0xd7,0x00,0xaf},
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{0xd7,0x00,0xd7}, {0xd7,0x00,0xff}, {0xd7,0x5f,0x00}, {0xd7,0x5f,0x5f},
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{0xd7,0x5f,0x87}, {0xd7,0x5f,0xaf}, {0xd7,0x5f,0xd7}, {0xd7,0x5f,0xff},
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{0xd7,0x87,0x00}, {0xd7,0x87,0x5f}, {0xd7,0x87,0x87}, {0xd7,0x87,0xaf},
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{0xd7,0x87,0xd7}, {0xd7,0x87,0xff}, {0xd7,0xaf,0x00}, {0xd7,0xaf,0x5f},
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{0xd7,0xaf,0x87}, {0xd7,0xaf,0xaf}, {0xd7,0xaf,0xd7}, {0xd7,0xaf,0xff},
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{0xd7,0xd7,0x00}, {0xd7,0xd7,0x5f}, {0xd7,0xd7,0x87}, {0xd7,0xd7,0xaf},
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{0xd7,0xd7,0xd7}, {0xd7,0xd7,0xff}, {0xd7,0xff,0x00}, {0xd7,0xff,0x5f},
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{0xd7,0xff,0x87}, {0xd7,0xff,0xaf}, {0xd7,0xff,0xd7}, {0xd7,0xff,0xff},
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{0xff,0x00,0x00}, {0xff,0x00,0x5f}, {0xff,0x00,0x87}, {0xff,0x00,0xaf},
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{0xff,0x00,0xd7}, {0xff,0x00,0xff}, {0xff,0x5f,0x00}, {0xff,0x5f,0x5f},
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{0xff,0x5f,0x87}, {0xff,0x5f,0xaf}, {0xff,0x5f,0xd7}, {0xff,0x5f,0xff},
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{0xff,0x87,0x00}, {0xff,0x87,0x5f}, {0xff,0x87,0x87}, {0xff,0x87,0xaf},
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{0xff,0x87,0xd7}, {0xff,0x87,0xff}, {0xff,0xaf,0x00}, {0xff,0xaf,0x5f},
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{0xff,0xaf,0x87}, {0xff,0xaf,0xaf}, {0xff,0xaf,0xd7}, {0xff,0xaf,0xff},
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{0xff,0xd7,0x00}, {0xff,0xd7,0x5f}, {0xff,0xd7,0x87}, {0xff,0xd7,0xaf},
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{0xff,0xd7,0xd7}, {0xff,0xd7,0xff}, {0xff,0xff,0x00}, {0xff,0xff,0x5f},
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{0xff,0xff,0x87}, {0xff,0xff,0xaf}, {0xff,0xff,0xd7}, {0xff,0xff,0xff},
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{0x08,0x08,0x08}, {0x12,0x12,0x12}, {0x1c,0x1c,0x1c}, {0x26,0x26,0x26},
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{0x30,0x30,0x30}, {0x3a,0x3a,0x3a}, {0x44,0x44,0x44}, {0x4e,0x4e,0x4e},
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{0x58,0x58,0x58}, {0x60,0x60,0x60}, {0x66,0x66,0x66}, {0x76,0x76,0x76},
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{0x80,0x80,0x80}, {0x8a,0x8a,0x8a}, {0x94,0x94,0x94}, {0x9e,0x9e,0x9e},
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{0xa8,0xa8,0xa8}, {0xb2,0xb2,0xb2}, {0xbc,0xbc,0xbc}, {0xc6,0xc6,0xc6},
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{0xd0,0xd0,0xd0}, {0xda,0xda,0xda}, {0xe4,0xe4,0xe4}, {0xee,0xee,0xee},
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};
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int NCursesUI::get_color(Color color)
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{
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auto it = m_colors.find(color);
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if (it != m_colors.end())
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return it->second;
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else if (can_change_color() and COLORS > 16)
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{
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kak_assert(color.color == Color::RGB);
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if (m_next_color > COLORS)
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m_next_color = 16;
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init_color(m_next_color,
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color.r * 1000 / 255,
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color.g * 1000 / 255,
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color.b * 1000 / 255);
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m_colors[color] = m_next_color;
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return m_next_color++;
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}
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else
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{
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kak_assert(color.color == Color::RGB);
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int lowestDist = INT_MAX;
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int closestCol = -1;
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for (int i = 0; i < std::min(256, COLORS); ++i)
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{
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auto& col = builtin_colors[i];
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int dist = sq(color.r - col.r)
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+ sq(color.g - col.g)
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+ sq(color.b - col.b);
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if (dist < lowestDist)
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{
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lowestDist = dist;
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closestCol = i;
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}
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}
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return closestCol;
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}
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}
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int NCursesUI::get_color_pair(const Face& face)
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{
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static int next_pair = 1;
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ColorPair colors{face.fg, face.bg};
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auto it = m_colorpairs.find(colors);
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if (it != m_colorpairs.end())
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return it->second;
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else
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{
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init_pair(next_pair, get_color(face.fg), get_color(face.bg));
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m_colorpairs[colors] = next_pair;
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return next_pair++;
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}
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}
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void NCursesUI::set_face(NCursesWin* window, Face face, const Face& default_face)
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{
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static int current_pair = -1;
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if (current_pair != -1)
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wattroff(window, COLOR_PAIR(current_pair));
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if (face.fg == Color::Default)
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face.fg = default_face.fg;
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if (face.bg == Color::Default)
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face.bg = default_face.bg;
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if (face.fg != Color::Default or face.bg != Color::Default)
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{
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current_pair = get_color_pair(face);
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wattron(window, COLOR_PAIR(current_pair));
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}
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set_attribute(window, A_UNDERLINE, face.attributes & Attribute::Underline);
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set_attribute(window, A_REVERSE, face.attributes & Attribute::Reverse);
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set_attribute(window, A_BLINK, face.attributes & Attribute::Blink);
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set_attribute(window, A_BOLD, face.attributes & Attribute::Bold);
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set_attribute(window, A_DIM, face.attributes & Attribute::Dim);
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#if defined(A_ITALIC)
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set_attribute(window, A_ITALIC, face.attributes & Attribute::Italic);
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#endif
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}
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static sig_atomic_t resize_pending = 0;
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void on_term_resize(int)
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{
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resize_pending = 1;
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EventManager::instance().force_signal(0);
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}
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NCursesUI::NCursesUI()
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: m_stdin_watcher{0, FdEvents::Read,
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[this](FDWatcher&, FdEvents, EventMode mode) {
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if (not m_on_key)
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return;
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while (auto key = get_next_key())
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m_on_key(*key);
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}},
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m_assistant(assistant_clippy),
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m_colors{
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{ Color::Default, -1 },
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{ Color::Black, COLOR_BLACK },
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{ Color::Red, COLOR_RED },
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{ Color::Green, COLOR_GREEN },
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{ Color::Yellow, COLOR_YELLOW },
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{ Color::Blue, COLOR_BLUE },
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{ Color::Magenta, COLOR_MAGENTA },
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{ Color::Cyan, COLOR_CYAN },
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{ Color::White, COLOR_WHITE },
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}
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{
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initscr();
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raw();
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noecho();
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nonl();
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curs_set(0);
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start_color();
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use_default_colors();
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set_escdelay(25);
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enable_mouse(true);
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set_signal_handler(SIGWINCH, on_term_resize);
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set_signal_handler(SIGCONT, on_term_resize);
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check_resize(true);
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redraw();
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}
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NCursesUI::~NCursesUI()
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{
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enable_mouse(false);
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if (can_change_color()) // try to reset palette
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{
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fputs("\033]104;\007", stdout);
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fflush(stdout);
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}
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endwin();
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set_signal_handler(SIGWINCH, SIG_DFL);
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set_signal_handler(SIGCONT, SIG_DFL);
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}
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void NCursesUI::Window::create(const DisplayCoord& p, const DisplayCoord& s)
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{
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pos = p;
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size = s;
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win = (NCursesWin*)newpad((int)size.line, (int)size.column);
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}
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void NCursesUI::Window::destroy()
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{
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delwin(win);
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win = nullptr;
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pos = DisplayCoord{};
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size = DisplayCoord{};
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}
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void NCursesUI::Window::refresh()
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{
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if (not win)
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return;
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DisplayCoord max_pos = pos + size - DisplayCoord{1,1};
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pnoutrefresh(win, 0, 0, (int)pos.line, (int)pos.column,
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(int)max_pos.line, (int)max_pos.column);
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}
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void NCursesUI::redraw()
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{
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pnoutrefresh(m_window, 0, 0, 0, 0,
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(int)m_dimensions.line + 1, (int)m_dimensions.column);
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m_menu.refresh();
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m_info.refresh();
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doupdate();
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}
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void NCursesUI::refresh(bool force)
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{
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if (force)
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redrawwin(m_window);
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if (m_dirty or force)
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redraw();
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m_dirty = false;
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}
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void add_str(WINDOW* win, StringView str)
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{
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waddnstr(win, str.begin(), (int)str.length());
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}
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void NCursesUI::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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{
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for (const DisplayAtom& atom : line)
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{
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set_face(window, atom.face, default_face);
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StringView content = atom.content();
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if (content.empty())
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continue;
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const auto remaining_columns = max_column - col_index;
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if (content.back() == '\n' and
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content.column_length() - 1 < remaining_columns)
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{
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add_str(window, content.substr(0, content.length()-1));
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waddch(window, ' ');
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}
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else
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{
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content = content.substr(0_col, remaining_columns);
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add_str(window, content);
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col_index += content.column_length();
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}
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}
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}
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static const DisplayLine empty_line = String(" ");
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void NCursesUI::draw(const DisplayBuffer& display_buffer,
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const Face& default_face,
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const Face& padding_face)
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{
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wbkgdset(m_window, COLOR_PAIR(get_color_pair(default_face)));
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|
|
check_resize();
|
|
|
|
LineCount line_index = m_status_on_top ? 1 : 0;
|
|
for (const DisplayLine& line : display_buffer.lines())
|
|
{
|
|
wmove(m_window, (int)line_index, 0);
|
|
wclrtoeol(m_window);
|
|
draw_line(m_window, line, 0, m_dimensions.column, default_face);
|
|
++line_index;
|
|
}
|
|
|
|
wbkgdset(m_window, COLOR_PAIR(get_color_pair(padding_face)));
|
|
set_face(m_window, padding_face, default_face);
|
|
|
|
while (line_index < m_dimensions.line + (m_status_on_top ? 1 : 0))
|
|
{
|
|
wmove(m_window, (int)line_index++, 0);
|
|
wclrtoeol(m_window);
|
|
waddch(m_window, '~');
|
|
}
|
|
|
|
m_dirty = true;
|
|
}
|
|
|
|
void NCursesUI::draw_status(const DisplayLine& status_line,
|
|
const DisplayLine& mode_line,
|
|
const Face& default_face)
|
|
{
|
|
const int status_line_pos = m_status_on_top ? 0 : (int)m_dimensions.line;
|
|
wmove(m_window, status_line_pos, 0);
|
|
|
|
wbkgdset(m_window, COLOR_PAIR(get_color_pair(default_face)));
|
|
wclrtoeol(m_window);
|
|
|
|
draw_line(m_window, status_line, 0, m_dimensions.column, default_face);
|
|
|
|
const auto mode_len = mode_line.length();
|
|
const auto remaining = m_dimensions.column - status_line.length();
|
|
if (mode_len < remaining)
|
|
{
|
|
ColumnCount col = m_dimensions.column - mode_len;
|
|
wmove(m_window, status_line_pos, (int)col);
|
|
draw_line(m_window, mode_line, col, m_dimensions.column, default_face);
|
|
}
|
|
else if (remaining > 2)
|
|
{
|
|
DisplayLine trimmed_mode_line = mode_line;
|
|
trimmed_mode_line.trim(mode_len + 2 - remaining, remaining - 2, false);
|
|
trimmed_mode_line.insert(trimmed_mode_line.begin(), { "…" });
|
|
kak_assert(trimmed_mode_line.length() == remaining - 1);
|
|
|
|
ColumnCount col = m_dimensions.column - remaining + 1;
|
|
wmove(m_window, status_line_pos, (int)col);
|
|
draw_line(m_window, trimmed_mode_line, col, m_dimensions.column, default_face);
|
|
}
|
|
|
|
if (m_set_title)
|
|
{
|
|
constexpr char suffix[] = " - Kakoune\007";
|
|
char buf[4 + 511 + 2] = "\033]2;";
|
|
// Fill title escape sequence buffer, removing non ascii characters
|
|
auto buf_it = &buf[4], buf_end = &buf[4 + 511 - (sizeof(suffix) - 2)];
|
|
for (auto& atom : mode_line)
|
|
{
|
|
const auto str = atom.content();
|
|
for (auto it = str.begin(), end = str.end();
|
|
it != end and buf_it != buf_end; utf8::to_next(it, end))
|
|
*buf_it++ = (*it >= 0x20 and *it <= 0x7e) ? *it : '?';
|
|
}
|
|
for (auto c : suffix)
|
|
*buf_it++ = c;
|
|
|
|
fputs(buf, stdout);
|
|
fflush(stdout);
|
|
}
|
|
|
|
m_dirty = true;
|
|
}
|
|
|
|
void NCursesUI::check_resize(bool force)
|
|
{
|
|
if (not force and not resize_pending)
|
|
return;
|
|
|
|
resize_pending = 0;
|
|
|
|
const int fd = open("/dev/tty", O_RDWR);
|
|
auto close_fd = on_scope_end([fd]{ close(fd); });
|
|
winsize ws;
|
|
if (ioctl(fd, TIOCGWINSZ, (void*)&ws) == 0)
|
|
{
|
|
const bool info = (bool)m_info;
|
|
const bool menu = (bool)m_menu;
|
|
if (m_window) delwin(m_window);
|
|
if (info) m_info.destroy();
|
|
if (menu) m_menu.destroy();
|
|
|
|
resize_term(ws.ws_row, ws.ws_col);
|
|
|
|
m_window = (NCursesWin*)newpad(ws.ws_row, ws.ws_col);
|
|
intrflush(m_window, false);
|
|
keypad(m_window, true);
|
|
|
|
m_dimensions = DisplayCoord{ws.ws_row-1, ws.ws_col};
|
|
|
|
if (char* csr = tigetstr((char*)"csr"))
|
|
putp(tparm(csr, 0, ws.ws_row));
|
|
|
|
if (menu)
|
|
{
|
|
auto items = std::move(m_menu.items);
|
|
menu_show(items, m_menu.anchor, m_menu.fg, m_menu.bg, m_menu.style);
|
|
}
|
|
if (info)
|
|
info_show(m_info.title, m_info.content, m_info.anchor, m_info.face, m_info.style);
|
|
}
|
|
else
|
|
kak_assert(false);
|
|
|
|
ungetch(KEY_RESIZE);
|
|
clearok(curscr, true);
|
|
werase(curscr);
|
|
}
|
|
|
|
void NCursesUI::on_sighup()
|
|
{
|
|
set_signal_handler(SIGWINCH, SIG_DFL);
|
|
set_signal_handler(SIGCONT, SIG_DFL);
|
|
|
|
m_window = nullptr;
|
|
}
|
|
|
|
Optional<Key> NCursesUI::get_next_key()
|
|
{
|
|
if (not m_window)
|
|
return {};
|
|
|
|
check_resize();
|
|
|
|
wtimeout(m_window, 0);
|
|
const int c = wgetch(m_window);
|
|
wtimeout(m_window, -1);
|
|
|
|
if (c == ERR)
|
|
return {};
|
|
|
|
if (c == KEY_MOUSE)
|
|
{
|
|
MEVENT ev;
|
|
if (getmouse(&ev) == OK)
|
|
{
|
|
auto get_modifiers = [this](mmask_t mask) {
|
|
Key::Modifiers res{};
|
|
|
|
if (mask & BUTTON_CTRL)
|
|
res |= Key::Modifiers::Control;
|
|
if (mask & BUTTON_ALT)
|
|
res |= Key::Modifiers::Alt;
|
|
|
|
if (BUTTON_PRESS(mask, 1))
|
|
return res | Key::Modifiers::MousePress;
|
|
if (BUTTON_RELEASE(mask, 1))
|
|
return res | Key::Modifiers::MouseRelease;
|
|
if (BUTTON_PRESS(mask, m_wheel_down_button))
|
|
return res | Key::Modifiers::MouseWheelDown;
|
|
if (BUTTON_PRESS(mask, m_wheel_up_button))
|
|
return res | Key::Modifiers::MouseWheelUp;
|
|
return res | Key::Modifiers::MousePos;
|
|
};
|
|
|
|
return Key{ get_modifiers(ev.bstate),
|
|
encode_coord({ ev.y - (m_status_on_top ? 1 : 0), ev.x }) };
|
|
}
|
|
}
|
|
|
|
if (c > 0 and c < 27)
|
|
{
|
|
if (c == control('m') or c == control('j'))
|
|
return {Key::Return};
|
|
if (c == control('i'))
|
|
return {Key::Tab};
|
|
if (c == control('z'))
|
|
{
|
|
raise(SIGTSTP);
|
|
return {};
|
|
}
|
|
return ctrl(Codepoint(c) - 1 + 'a');
|
|
}
|
|
else if (c == 27)
|
|
{
|
|
wtimeout(m_window, 0);
|
|
const Codepoint new_c = wgetch(m_window);
|
|
if (new_c == '[') // potential CSI
|
|
{
|
|
const Codepoint csi_val = wgetch(m_window);
|
|
switch (csi_val)
|
|
{
|
|
case 'I': return {Key::FocusIn};
|
|
case 'O': return {Key::FocusOut};
|
|
default: break; // nothing
|
|
}
|
|
}
|
|
wtimeout(m_window, -1);
|
|
if (new_c != ERR)
|
|
{
|
|
if (new_c > 0 and new_c < 27)
|
|
return ctrlalt(Codepoint(new_c) - 1 + 'a');
|
|
return alt(new_c);
|
|
}
|
|
else
|
|
return {Key::Escape};
|
|
}
|
|
else switch (c)
|
|
{
|
|
case KEY_BACKSPACE: case 127: return {Key::Backspace};
|
|
case KEY_DC: return {Key::Delete};
|
|
case KEY_UP: return {Key::Up};
|
|
case KEY_DOWN: return {Key::Down};
|
|
case KEY_LEFT: return {Key::Left};
|
|
case KEY_RIGHT: return {Key::Right};
|
|
case KEY_PPAGE: return {Key::PageUp};
|
|
case KEY_NPAGE: return {Key::PageDown};
|
|
case KEY_HOME: return {Key::Home};
|
|
case KEY_END: return {Key::End};
|
|
case KEY_BTAB: return {Key::BackTab};
|
|
case KEY_RESIZE: return resize(m_dimensions);
|
|
}
|
|
|
|
for (int i = 0; i < 12; ++i)
|
|
{
|
|
if (c == KEY_F(i+1))
|
|
return {Key::F1 + i};
|
|
}
|
|
|
|
if (c >= 0 and c < 256)
|
|
{
|
|
ungetch(c);
|
|
struct getch_iterator
|
|
{
|
|
getch_iterator(WINDOW* win) : window(win) {}
|
|
int operator*() { return wgetch(window); }
|
|
getch_iterator& operator++() { return *this; }
|
|
getch_iterator& operator++(int) { return *this; }
|
|
bool operator== (const getch_iterator&) const { return false; }
|
|
|
|
WINDOW* window;
|
|
};
|
|
return Key{utf8::codepoint(getch_iterator{m_window},
|
|
getch_iterator{m_window})};
|
|
}
|
|
return {};
|
|
}
|
|
|
|
template<typename T>
|
|
T div_round_up(T a, T b)
|
|
{
|
|
return (a - T(1)) / b + T(1);
|
|
}
|
|
|
|
void NCursesUI::draw_menu()
|
|
{
|
|
// menu show may have not created the window if it did not fit.
|
|
// so be tolerant.
|
|
if (not m_menu)
|
|
return;
|
|
|
|
const auto menu_bg = get_color_pair(m_menu.bg);
|
|
wattron(m_menu.win, COLOR_PAIR(menu_bg));
|
|
wbkgdset(m_menu.win, COLOR_PAIR(menu_bg));
|
|
|
|
const int item_count = (int)m_menu.items.size();
|
|
const LineCount menu_lines = div_round_up(item_count, m_menu.columns);
|
|
const LineCount& win_height = m_menu.size.line;
|
|
kak_assert(win_height <= menu_lines);
|
|
|
|
const ColumnCount column_width = (m_menu.size.column - 1) / m_menu.columns;
|
|
|
|
const LineCount mark_height = min(div_round_up(sq(win_height), menu_lines),
|
|
win_height);
|
|
const LineCount mark_line = (win_height - mark_height) * m_menu.top_line /
|
|
max(1_line, menu_lines - win_height);
|
|
for (auto line = 0_line; line < win_height; ++line)
|
|
{
|
|
wmove(m_menu.win, (int)line, 0);
|
|
for (int col = 0; col < m_menu.columns; ++col)
|
|
{
|
|
const int item_idx = (int)(m_menu.top_line + line) * m_menu.columns
|
|
+ col;
|
|
if (item_idx >= item_count)
|
|
break;
|
|
|
|
const DisplayLine& item = m_menu.items[item_idx];
|
|
draw_line(m_menu.win, item, 0, column_width,
|
|
item_idx == m_menu.selected_item ? m_menu.fg : m_menu.bg);
|
|
const ColumnCount pad = column_width - item.length();
|
|
add_str(m_menu.win, String{' ', pad});
|
|
}
|
|
const bool is_mark = line >= mark_line and
|
|
line < mark_line + mark_height;
|
|
wclrtoeol(m_menu.win);
|
|
wmove(m_menu.win, (int)line, (int)m_menu.size.column - 1);
|
|
wattron(m_menu.win, COLOR_PAIR(menu_bg));
|
|
add_str(m_menu.win, is_mark ? "█" : "░");
|
|
}
|
|
m_dirty = true;
|
|
}
|
|
|
|
void NCursesUI::menu_show(ConstArrayView<DisplayLine> items,
|
|
DisplayCoord anchor, Face fg, Face bg,
|
|
MenuStyle style)
|
|
{
|
|
menu_hide();
|
|
|
|
m_menu.fg = fg;
|
|
m_menu.bg = bg;
|
|
m_menu.style = style;
|
|
m_menu.anchor = anchor;
|
|
|
|
if (style == MenuStyle::Prompt)
|
|
anchor = DisplayCoord{m_status_on_top ? 0_line : m_dimensions.line, 0};
|
|
else if (m_status_on_top)
|
|
anchor.line += 1;
|
|
|
|
DisplayCoord maxsize = m_dimensions;
|
|
maxsize.column -= anchor.column;
|
|
if (maxsize.column <= 2)
|
|
return;
|
|
|
|
const int item_count = items.size();
|
|
m_menu.items.clear(); // make sure it is empty
|
|
m_menu.items.reserve(item_count);
|
|
ColumnCount longest = 1;
|
|
for (auto& item : items)
|
|
longest = max(longest, item.length());
|
|
|
|
const bool is_prompt = style == MenuStyle::Prompt;
|
|
m_menu.columns = is_prompt ? max((int)((maxsize.column-1) / (longest+1)), 1) : 1;
|
|
|
|
ColumnCount maxlen = maxsize.column-1;
|
|
if (m_menu.columns > 1 and item_count > 1)
|
|
maxlen = maxlen / m_menu.columns - 1;
|
|
|
|
for (auto& item : items)
|
|
{
|
|
m_menu.items.push_back(item);
|
|
m_menu.items.back().trim(0, maxlen, false);
|
|
kak_assert(m_menu.items.back().length() <= maxlen);
|
|
}
|
|
|
|
int height = min(10, div_round_up(item_count, m_menu.columns));
|
|
|
|
int line = (int)anchor.line + 1;
|
|
if (line + height >= (int)maxsize.line)
|
|
line = (int)anchor.line - height;
|
|
m_menu.selected_item = item_count;
|
|
m_menu.top_line = 0;
|
|
|
|
auto width = is_prompt ? maxsize.column : min(longest+1, maxsize.column);
|
|
m_menu.create({line, anchor.column}, {height, width});
|
|
draw_menu();
|
|
|
|
if (m_info)
|
|
info_show(m_info.title, m_info.content,
|
|
m_info.anchor, m_info.face, m_info.style);
|
|
}
|
|
|
|
void NCursesUI::menu_select(int selected)
|
|
{
|
|
const int item_count = m_menu.items.size();
|
|
const LineCount menu_lines = div_round_up(item_count, m_menu.columns);
|
|
if (selected < 0 or selected >= item_count)
|
|
{
|
|
m_menu.selected_item = -1;
|
|
m_menu.top_line = 0;
|
|
}
|
|
else
|
|
{
|
|
m_menu.selected_item = selected;
|
|
const LineCount selected_line = m_menu.selected_item / m_menu.columns;
|
|
const LineCount win_height = m_menu.size.line;
|
|
kak_assert(menu_lines >= win_height);
|
|
if (selected_line < m_menu.top_line)
|
|
m_menu.top_line = selected_line;
|
|
if (selected_line >= m_menu.top_line + win_height)
|
|
m_menu.top_line = min(selected_line, menu_lines - win_height);
|
|
}
|
|
draw_menu();
|
|
}
|
|
|
|
void NCursesUI::menu_hide()
|
|
{
|
|
if (not m_menu)
|
|
return;
|
|
m_menu.items.clear();
|
|
mark_dirty(m_menu);
|
|
m_menu.destroy();
|
|
m_dirty = true;
|
|
}
|
|
|
|
static DisplayCoord compute_needed_size(StringView str)
|
|
{
|
|
DisplayCoord res{1,0};
|
|
ColumnCount line_len = 0;
|
|
for (auto it = str.begin(), end = str.end();
|
|
it != end; it = utf8::next(it, end))
|
|
{
|
|
if (*it == '\n')
|
|
{
|
|
// ignore last '\n', no need to show an empty line
|
|
if (it+1 == end)
|
|
break;
|
|
|
|
res.column = max(res.column, line_len);
|
|
line_len = 0;
|
|
++res.line;
|
|
}
|
|
else
|
|
{
|
|
++line_len;
|
|
res.column = max(res.column, line_len);
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static DisplayCoord compute_pos(DisplayCoord anchor, DisplayCoord size,
|
|
NCursesUI::Rect rect, NCursesUI::Rect to_avoid,
|
|
bool prefer_above)
|
|
{
|
|
DisplayCoord pos;
|
|
if (prefer_above)
|
|
{
|
|
pos = anchor - DisplayCoord{size.line};
|
|
if (pos.line < 0)
|
|
prefer_above = false;
|
|
}
|
|
auto rect_end = rect.pos + rect.size;
|
|
if (not prefer_above)
|
|
{
|
|
pos = anchor + DisplayCoord{1_line};
|
|
if (pos.line + size.line > rect_end.line)
|
|
pos.line = max(rect.pos.line, anchor.line - size.line);
|
|
}
|
|
if (pos.column + size.column > rect_end.column)
|
|
pos.column = max(rect.pos.column, rect_end.column - size.column);
|
|
|
|
if (to_avoid.size != DisplayCoord{})
|
|
{
|
|
DisplayCoord to_avoid_end = to_avoid.pos + to_avoid.size;
|
|
|
|
DisplayCoord end = pos + size;
|
|
|
|
// check intersection
|
|
if (not (end.line < to_avoid.pos.line or end.column < to_avoid.pos.column or
|
|
pos.line > to_avoid_end.line or pos.column > to_avoid_end.column))
|
|
{
|
|
pos.line = min(to_avoid.pos.line, anchor.line) - size.line;
|
|
// if above does not work, try below
|
|
if (pos.line < 0)
|
|
pos.line = max(to_avoid_end.line, anchor.line);
|
|
}
|
|
}
|
|
|
|
return pos;
|
|
}
|
|
|
|
String make_info_box(StringView title, StringView message, ColumnCount max_width,
|
|
ConstArrayView<StringView> assistant)
|
|
{
|
|
DisplayCoord assistant_size;
|
|
if (not assistant.empty())
|
|
assistant_size = { (int)assistant.size(), assistant[0].column_length() };
|
|
|
|
String result;
|
|
|
|
const ColumnCount max_bubble_width = max_width - assistant_size.column - 6;
|
|
if (max_bubble_width < 4)
|
|
return result;
|
|
|
|
Vector<StringView> lines = wrap_lines(message, max_bubble_width);
|
|
|
|
ColumnCount bubble_width = title.column_length() + 2;
|
|
for (auto& line : lines)
|
|
bubble_width = max(bubble_width, line.column_length());
|
|
|
|
auto line_count = max(assistant_size.line-1,
|
|
LineCount{(int)lines.size()} + 2);
|
|
for (LineCount i = 0; i < line_count; ++i)
|
|
{
|
|
constexpr Codepoint dash{L'─'};
|
|
if (not assistant.empty())
|
|
result += assistant[min((int)i, (int)assistant_size.line-1)];
|
|
if (i == 0)
|
|
{
|
|
if (title.empty())
|
|
result += "╭─" + String{dash, bubble_width} + "─╮";
|
|
else
|
|
{
|
|
auto dash_count = bubble_width - title.column_length() - 2;
|
|
String left{dash, dash_count / 2};
|
|
String right{dash, dash_count - dash_count / 2};
|
|
result += "╭─" + left + "┤" + title +"├" + right +"─╮";
|
|
}
|
|
}
|
|
else if (i < lines.size() + 1)
|
|
{
|
|
auto& line = lines[(int)i - 1];
|
|
const ColumnCount padding = bubble_width - line.column_length();
|
|
result += "│ " + line + String{' ', padding} + " │";
|
|
}
|
|
else if (i == lines.size() + 1)
|
|
result += "╰─" + String(dash, bubble_width) + "─╯";
|
|
|
|
result += "\n";
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void NCursesUI::info_show(StringView title, StringView content,
|
|
DisplayCoord anchor, Face face, InfoStyle style)
|
|
{
|
|
info_hide();
|
|
|
|
m_info.title = title.str();
|
|
m_info.content = content.str();
|
|
m_info.anchor = anchor;
|
|
m_info.face = face;
|
|
m_info.style = style;
|
|
|
|
String info_box;
|
|
if (style == InfoStyle::Prompt)
|
|
{
|
|
info_box = make_info_box(m_info.title, m_info.content,
|
|
m_dimensions.column, m_assistant);
|
|
anchor = DisplayCoord{m_status_on_top ? 0 : m_dimensions.line,
|
|
m_dimensions.column-1};
|
|
}
|
|
else
|
|
{
|
|
if (m_status_on_top)
|
|
anchor.line += 1;
|
|
ColumnCount col = anchor.column;
|
|
if (style == InfoStyle::MenuDoc and m_menu)
|
|
col = m_menu.pos.column + m_menu.size.column;
|
|
|
|
const ColumnCount max_width = m_dimensions.column - col;
|
|
if (max_width < 4)
|
|
return;
|
|
|
|
for (auto& line : wrap_lines(m_info.content, max_width))
|
|
info_box += line + "\n";
|
|
}
|
|
|
|
DisplayCoord size = compute_needed_size(info_box), pos;
|
|
const Rect rect = {m_status_on_top ? 1_line : 0_line, m_dimensions};
|
|
if (style == InfoStyle::MenuDoc and m_menu)
|
|
pos = m_menu.pos + DisplayCoord{0_line, m_menu.size.column};
|
|
else
|
|
pos = compute_pos(anchor, size, rect, m_menu, style == InfoStyle::InlineAbove);
|
|
|
|
// The info box does not fit
|
|
if (pos < rect.pos or pos + size > rect.pos + rect.size)
|
|
return;
|
|
|
|
m_info.create(pos, size);
|
|
|
|
wbkgd(m_info.win, COLOR_PAIR(get_color_pair(face)));
|
|
int line = 0;
|
|
auto it = info_box.begin(), end = info_box.end();
|
|
while (true)
|
|
{
|
|
wmove(m_info.win, line++, 0);
|
|
auto eol = std::find_if(it, end, [](char c) { return c == '\n'; });
|
|
add_str(m_info.win, {it, eol});
|
|
if (eol == end)
|
|
break;
|
|
it = eol + 1;
|
|
}
|
|
m_dirty = true;
|
|
}
|
|
|
|
void NCursesUI::info_hide()
|
|
{
|
|
if (not m_info)
|
|
return;
|
|
mark_dirty(m_info);
|
|
m_info.destroy();
|
|
m_dirty = true;
|
|
}
|
|
|
|
void NCursesUI::mark_dirty(const Window& win)
|
|
{
|
|
wredrawln(m_window, (int)win.pos.line, (int)win.size.line);
|
|
}
|
|
|
|
void NCursesUI::set_on_key(OnKeyCallback callback)
|
|
{
|
|
m_on_key = std::move(callback);
|
|
}
|
|
|
|
DisplayCoord NCursesUI::dimensions()
|
|
{
|
|
return m_dimensions;
|
|
}
|
|
|
|
void NCursesUI::abort()
|
|
{
|
|
endwin();
|
|
}
|
|
|
|
void NCursesUI::enable_mouse(bool enabled)
|
|
{
|
|
if (enabled == m_mouse_enabled)
|
|
return;
|
|
|
|
m_mouse_enabled = enabled;
|
|
if (enabled)
|
|
{
|
|
mousemask(ALL_MOUSE_EVENTS | REPORT_MOUSE_POSITION, nullptr);
|
|
mouseinterval(0);
|
|
// force enable report mouse position
|
|
fputs("\033[?1002h", stdout);
|
|
// force enable report focus events
|
|
fputs("\033[?1004h", stdout);
|
|
}
|
|
else
|
|
{
|
|
mousemask(0, nullptr);
|
|
fputs("\033[?1004l", stdout);
|
|
fputs("\033[?1002l", stdout);
|
|
}
|
|
fflush(stdout);
|
|
}
|
|
|
|
void NCursesUI::set_ui_options(const Options& options)
|
|
{
|
|
{
|
|
auto it = options.find("ncurses_assistant");
|
|
if (it == options.end() or it->value == "clippy")
|
|
m_assistant = assistant_clippy;
|
|
else if (it->value == "cat")
|
|
m_assistant = assistant_cat;
|
|
else if (it->value == "none" or it->value == "off")
|
|
m_assistant = ConstArrayView<StringView>{};
|
|
}
|
|
|
|
{
|
|
auto it = options.find("ncurses_status_on_top");
|
|
m_status_on_top = it != options.end() and
|
|
(it->value == "yes" or it->value == "true");
|
|
}
|
|
|
|
{
|
|
auto it = options.find("ncurses_set_title");
|
|
m_set_title = it == options.end() or
|
|
(it->value == "yes" or it->value == "true");
|
|
}
|
|
|
|
{
|
|
auto enable_mouse_it = options.find("ncurses_enable_mouse");
|
|
enable_mouse(enable_mouse_it == options.end() or
|
|
enable_mouse_it->value == "yes" or
|
|
enable_mouse_it->value == "true");
|
|
|
|
auto wheel_up_it = options.find("ncurses_wheel_up_button");
|
|
m_wheel_up_button = wheel_up_it != options.end() ?
|
|
str_to_int_ifp(wheel_up_it->value).value_or(4) : 4;
|
|
|
|
auto wheel_down_it = options.find("ncurses_wheel_down_button");
|
|
m_wheel_down_button = wheel_down_it != options.end() ?
|
|
str_to_int_ifp(wheel_down_it->value).value_or(5) : 5;
|
|
}
|
|
}
|
|
|
|
}
|