BLT/include/blt/logging/ansi.h

354 lines
8.9 KiB
C++

#pragma once
/*
* Copyright (C) 2024 Brett Terpstra
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef BLT_LOGGING_COLORS_H
#define BLT_LOGGING_COLORS_H
#include <array>
#include <stdexcept>
#include <string>
#include <variant>
#include <blt/std/types.h>
#define BLT_ANSI_ESCAPE "\x1B"
#define BLT_ANSI_CSI BLT_ANSI_ESCAPE "["
#define BLT_ANSI_DSC BLT_ANSI_ESCAPE "P"
#define BLT_ANSI_OSC BLT_ANSI_ESCAPE "]"
// https://gist.github.com/fnky/458719343aabd01cfb17a3a4f7296797
namespace blt::logging::ansi
{
namespace color
{
inline std::array<u8, 10> reset_sequences = {0, 22, 22, 23, 24, 25, 26, 27, 28, 29};
enum class color_mode : u8
{
RESET_ALL = 0,
BOLD = 1,
DIM = 2,
ITALIC = 3,
UNDERLINE = 4,
BLINK = 5,
REVERSE = 7,
HIDDEN = 8,
STRIKE_THROUGH = 9, };
enum class color8 : u8
{
BLACK = 0,
RED = 1,
GREEN = 2,
YELLOW = 3,
BLUE = 4,
MAGENTA = 5,
CYAN = 6,
WHITE = 7,
DEFAULT = 9
};
enum class color8_bright : u8
{
BLACK = 0,
RED = 1,
GREEN = 2,
YELLOW = 3,
BLUE = 4,
MAGENTA = 5,
CYAN = 6,
WHITE = 7
};
struct rgb_t
{
u8 r, g, b;
};
struct color256
{
explicit color256(u8 index) : color(index)
{}
color256(const u8 r, const u8 g, const u8 b) : color(rgb_t{r, g, b})
{
if (r > 5)
throw std::invalid_argument("r must be between 0 and 5");
if (g > 5)
throw std::invalid_argument("g must be between 0 and 5");
if (b > 5)
throw std::invalid_argument("b must be between 0 and 5");
}
[[nodiscard]] u8 index() const
{
if (std::holds_alternative<u8>(color))
return std::get<u8>(color);
const auto [r, g, b] = std::get<rgb_t>(color);
return (r * 36) + (g * 6) + b + 16;
}
private:
std::variant<u8, rgb_t> color;
};
struct color_rgb
{
color_rgb(const u8 r, const u8 g, const u8 b) : color(rgb_t{r, g, b})
{}
rgb_t color;
};
namespace detail
{
template <typename T>
struct color_holder
{
using value_type = T;
T color;
bool alt = false;
};
template <typename T>
struct color_converter
{};
template <>
struct color_converter<color8>
{
static std::string to_string(const color_holder<color8> color)
{
return (color.alt ? "4" : "3") + std::to_string(static_cast<u8>(color.color));
}
};
template <>
struct color_converter<color8_bright>
{
static std::string to_string(const color_holder<color8_bright> color)
{
return (color.alt ? "10" : "9") + std::to_string(static_cast<u8>(color.color));
}
};
template <>
struct color_converter<color_mode>
{
static std::string to_string(const color_holder<color_mode> color)
{
return color.alt ? std::to_string(reset_sequences[static_cast<u8>(color.color)]) : std::to_string(static_cast<u8>(color.color));
}
};
template <>
struct color_converter<color256>
{
static std::string to_string(const color_holder<color256> color)
{
return (color.alt ? "48;5;" : "38;5;") + std::to_string(color.color.index());
}
};
template <>
struct color_converter<color_rgb>
{
static std::string to_string(const color_holder<color_rgb> color)
{
return (color.alt ? "48;2;" : "38;2;") + std::to_string(color.color.color.r) + ";" + std::to_string(color.color.color.g) + ";" +
std::to_string(color.color.color.b);
}
};
template <typename T>
struct ensure_holder
{
static color_holder<T> make(const T& color)
{
return color_holder<T>{color, false};
}
};
template <typename T>
struct ensure_holder<color_holder<T>>
{
static color_holder<T> make(const color_holder<T>& color)
{
return color;
}
};
template<typename T>
struct decay
{
using type = std::decay_t<T>;
};
template<typename T>
struct decay<color_holder<T>>
{
using type = std::decay_t<T>;
};
template<typename T>
using decay_t = typename decay<T>::type;
}
template <typename T>
auto fg(const T& color)
{
return detail::color_holder<T>{color, false};
}
template <typename T>
auto bg(const T& color)
{
return detail::color_holder<T>{color, true};
}
template <typename... Args>
std::string build(const Args&... args)
{
std::string result = BLT_ANSI_CSI;
((result += detail::color_converter<detail::decay_t<Args>>::to_string(detail::ensure_holder<Args>::make(args)), result += ';'), ...);
return result.substr(0, result.size() - 1) + "m";
}
}
namespace general
{
inline const std::string bell = "\x07";
inline const std::string bs = "\x08";
inline const std::string horizontal_tab = "\x09";
inline const std::string linefeed = "\x0A";
inline const std::string vertical_tab = "\x0B";
inline const std::string form_feed = "\x0C";
inline const std::string carriage_return = "\x0D";
inline const std::string escape = BLT_ANSI_ESCAPE;
inline const std::string del = "\x7F";
inline const std::string csi = BLT_ANSI_CSI;
inline const std::string dsc = BLT_ANSI_DSC;
inline const std::string osc = BLT_ANSI_OSC;
}
namespace cursor
{
inline const std::string home = BLT_ANSI_CSI "H";
inline const std::string lower_left_corner = BLT_ANSI_ESCAPE " F";
inline const std::string hide_cursor = BLT_ANSI_CSI "?2 5l";
inline const std::string show_cursor = BLT_ANSI_CSI "?2 5h";
inline const std::string report_position = BLT_ANSI_CSI "6n";
template <bool UseH = true>
std::string move_to(const i64 line, const i64 column)
{
if constexpr (UseH)
return std::string(BLT_ANSI_CSI) + std::to_string(line) + ";" + std::to_string(column) + "H";
else
return std::string(BLT_ANSI_CSI) + std::to_string(line) + ";" + std::to_string(column) + "f";
}
inline std::string move_up(const i64 lines)
{
return std::string(BLT_ANSI_CSI) + std::to_string(lines) + "A";
}
inline std::string move_down(const i64 lines)
{
return std::string(BLT_ANSI_CSI) + std::to_string(lines) + "B";
}
inline std::string move_right(const i64 columns)
{
return std::string(BLT_ANSI_CSI) + std::to_string(columns) + "C";
}
inline std::string move_left(const i64 columns)
{
return std::string(BLT_ANSI_CSI) + std::to_string(columns) + "D";
}
inline std::string move_begin_down(const i64 lines)
{
return std::string(BLT_ANSI_CSI) + std::to_string(lines) + "E";
}
inline std::string move_begin_up(const i64 lines)
{
return std::string(BLT_ANSI_CSI) + std::to_string(lines) + "F";
}
inline std::string move_to(const i64 column)
{
return std::string(BLT_ANSI_CSI) + std::to_string(column) + "G";
}
inline const std::string request_cursor_position = BLT_ANSI_CSI "6n";
inline const std::string move_up_one_line = BLT_ANSI_ESCAPE " M";
inline const std::string save_cursor_position_dec = BLT_ANSI_ESCAPE " 7";
inline const std::string restore_cursor_position_dec = BLT_ANSI_ESCAPE " 8";
inline const std::string save_cursor_position_sco = BLT_ANSI_CSI "s";
inline const std::string restore_cursor_position_sco = BLT_ANSI_CSI "u";
}
namespace scroll
{
inline std::string scroll_up(const int lines)
{
return std::string(BLT_ANSI_CSI) + std::to_string(lines) + "S";
};
}
namespace erase
{
inline const std::string to_end_of_screen = BLT_ANSI_CSI "0J";
inline const std::string from_begin_of_screen = BLT_ANSI_CSI "1J";
inline const std::string entire_screen = BLT_ANSI_CSI "2J";
inline const std::string saved_lines = BLT_ANSI_CSI "3J";
inline const std::string to_end_of_line = BLT_ANSI_CSI "0K";
inline const std::string from_begin_of_line = BLT_ANSI_CSI "1K";
inline const std::string entire_line = BLT_ANSI_CSI "2K";
}
enum class mode : u8
{
mono40x25_text = 0,
color40x25_text = 1,
mono80x25_text = 2,
color80x25_text = 3,
color320x200_4color_graphics = 4,
mono320x200_graphics = 5,
mono640x200_graphics = 6,
line_wrapping = 7,
color320x200_graphics = 13,
color640x200_16color_graphics = 14,
mono640x350_2color_graphics = 15,
color640x350_16color_graphics = 16,
mono640x480_2color_graphics = 17,
color640x480_16color_graphics = 18,
color320_200_256color_graphics = 19
};
inline std::string use_mode(const mode mode)
{
return std::string(BLT_ANSI_CSI) + "=" + std::to_string(static_cast<u8>(mode)) + "h";
}
}
#endif //BLT_LOGGING_COLORS_H