terminal.py

import os
import contextlib

os.system("")

class ColorProperty:
    colors = ("red", "green", "cyan", "blue", "black", "magenta", "white", "yellow", "blank")
    fg_colors_dict = {
        "black": "\033[30m", 
        "red": "\033[31m",
        "green": "\033[32m", 
        "yellow": "\033[33m", 
        "blue": "\033[34m", 
        "magenta": "\033[35m", 
        "cyan": "\033[36m", 
        "white": "\033[37m", 
        }
    
    bg_colors_dict = {
        "black": "\033[40m", 
        "red": "\033[41m",
        "green": "\033[42m", 
        "yellow": "\033[43m", 
        "blue": "\033[44m", 
        "magenta": "\033[45m", 
        "cyan": "\033[46m", 
        "white": "\033[47m",
        "blank": "" 
        }
    
    
    def __init__(self, default_fg_color, default_bg_color) -> None:
        if default_fg_color is not None and (default_fg_color not in self.colors or default_fg_color == "blank"):
            raise ValueError(f"default foreground color {default_fg_color} is unsupported")
        if default_bg_color is not None and default_bg_color not in self.colors:
            raise ValueError(f"default background color {default_bg_color} is unsupported")
        self.default_fg_color = default_fg_color
        self.default_bg_color = default_bg_color

        self._fg_color = None
        self._bg_color = None

    @property
    def fg_color(self):
        return self._fg_color or self.default_fg_color
    
    @fg_color.setter
    def fg_color(self, color):
        if color not in self.colors:
            raise ValueError(f"color {color} not supported by terminal")
        self._fg_color = color
    
    @property
    def bg_color(self):
        return self._bg_color or self.default_bg_color
    
    @bg_color.setter
    def bg_color(self, color):
        if color is not None and color not in self.colors:
            raise ValueError(f"color {color} not supported by terminal")
        self._bg_color = color
    
    @property
    def final_color(self):
        return  self.fg_colors_dict[self.fg_color] + self.bg_colors_dict[self.bg_color]

class Font:
    reset_font = "\033[0m"
    bold_font = "\033[1m"
    faint_font = "\033[2m"
    italics_font = "\033[3m"
    underline_font = "\033[4m"
    slow_blink_font = "\033[5m"
    rapid_blink_font = "\033[6m"
    invert_font = "\033[7m"
    hide_font = "\033[8m"
    strike_font = "\033[9m"

class TerminalCursor:
    def toggle(self, visiblity):
        if visiblity:
            print('\033[?25h', end="")
        else:
            print('\033[?25l', end="")
        
    def move_up(self, by): 
        print(f"\033[{by}A")
    
    def move_down(self, by):
        print(f"\033[{by}B")

    def move_left(self, by): 
        print(f"\033[{by}C")

    def move_right(self, by): 
        print(f"\033[{by}D")

    def set_cursor_position(self, x, y): 
        print(f"\033[{x};{y}H")


@contextlib.contextmanager
def terminal_cursor(visible=False):
    crsr = TerminalCursor()
    crsr.toggle(visiblity=visible)
    try:
        yield crsr
    finally:
        crsr.toggle(visiblity=not visible)

    
# print("\x1B[0F" + , end="")