112 lines
3.0 KiB
Python
Executable File
112 lines
3.0 KiB
Python
Executable File
from core import colors, cursor, mode, files, buffer
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import os
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import curses
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import argparse
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def start_screen(stdscr):
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# Get window height and width
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height, width = stdscr.getmaxyx()
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# Startup text
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title = "λ Lambda"
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subtext = [
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"Next generation hackable text editor for nerds",
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"",
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"Type :h to open the README.md document",
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"Type :o <file> to open a file and edit",
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"Type :q or <C-c> to quit lambda.py"
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]
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# Centering calculations
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start_x_title = int((width // 2) - (len(title) // 2) - len(title) % 2)
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start_y = int((height // 2) - 2)
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# Rendering title
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stdscr.addstr(start_y, start_x_title, title, curses.color_pair(7) | curses.A_BOLD)
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# Print the subtext
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for text in subtext:
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start_y += 1
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start_x = int((width // 2) - (len(text) // 2) - len(text) % 2)
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stdscr.addstr(start_y, start_x, text)
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def start(stdscr, buffer_name, buffer_list):
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# Initialise data before starting
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data = {
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"cursor_y": 0,
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"cursor_x": 0,
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"height": 0,
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"width": 0,
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"mode": "normal",
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"icon": "λ",
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"info_bar": [" "],
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"buffer_name": buffer_name,
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"buffer_list": buffer_list,
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"statusbar_theme": "filled"
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}
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# Initialise colors
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colors.init_colors()
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# Change the cursor shape
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cursor.cursor_mode("block")
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# Start the screen
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if data["buffer_name"] == "[No Name]":
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start_screen(stdscr)
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# Main loop
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while True:
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# Get the height and width of the screen
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data["height"], data["width"] = stdscr.getmaxyx()
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# Write the buffer to the screen
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buffer.write_buffer(stdscr, data)
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# Activate the next mode
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data = mode.activate(stdscr, data)
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# Refresh and clear the screen
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stdscr.refresh()
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stdscr.clear()
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def main():
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parser = argparse.ArgumentParser(description="Next generation hackable text editor for nerds.")
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parser.add_argument("file", metavar="file", type=str, nargs="?",
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help="The name of a file for lambda to open")
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args = parser.parse_args()
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# Check if a file name has been inputted
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if args.file:
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buffer_name = args.file
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# Only if the file exists
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if os.path.exists(args.file):
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# Load the file into the buffer
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buffer_list = files.open_file(buffer_name)
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# Convert each line into a list of lists with each element of the sublist representing one character
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for index, line in enumerate(buffer_list):
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buffer_list[index] = list(line)
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else:
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buffer_list = [[""]]
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else:
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buffer_name = "[No Name]"
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buffer_list = [[""]]
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# Change the escape delay to 25ms
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# Fixes an issue where esc takes too long to press
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os.environ.setdefault("ESCDELAY", "25")
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# Initialise the screen
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curses.wrapper(start, buffer_name, buffer_list)
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if __name__ == "__main__":
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main()
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