78 lines
2.5 KiB
Python
78 lines
2.5 KiB
Python
import curses
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import os
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import textwrap
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def read_file(filename):
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with open(filename, 'r', encoding='utf-8') as f:
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return f.read()
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def main(stdscr):
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curses.curs_set(0) # Hide cursor
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stdscr.keypad(1) # Enable special keys
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stdscr.timeout(100) # Set timeout for getch
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current_chapter = 0
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offset = 0 # To keep track of scrolling
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update_needed = True # Flag to check whether an update is needed
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while True:
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# Only clear and refresh the screen if an update is needed
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if update_needed:
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stdscr.clear()
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# Read the file
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if current_chapter == 0:
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text = read_file('chapters/title.txt')
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else:
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text = read_file(f'chapters/chapter{current_chapter}.txt')
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# Split text by lines, then wrap each line
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max_y, max_x = stdscr.getmaxyx()
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lines = text.split('\n')
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wrapped_lines = [textwrap.fill(line, width=max_x) for line in lines]
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final_text = '\n'.join(wrapped_lines)
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final_lines = final_text.split('\n')
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# Display text
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for i, line in enumerate(final_lines[offset:]):
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if i >= max_y - 1:
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break
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stdscr.addstr(i, 0, line)
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stdscr.refresh()
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update_needed = False # Reset the flag after updating
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# Get user input
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c = stdscr.getch()
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# Scroll up/down
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if c == curses.KEY_UP and offset > 0:
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offset -= 1
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update_needed = True
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elif c == curses.KEY_DOWN and offset < len(final_lines) - max_y:
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offset += 1
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update_needed = True
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# Skip a whole screen up/down
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elif c == curses.KEY_SR and offset > 0: # Ctrl+Up
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offset = max(0, offset - max_y)
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update_needed = True
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elif c == curses.KEY_SF and offset < len(final_lines) - max_y: # Ctrl+Down
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offset = min(len(final_lines) - max_y, offset + max_y)
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update_needed = True
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# Change chapters
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elif c == curses.KEY_RIGHT:
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current_chapter += 1
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if not os.path.exists(f'chapters/chapter{current_chapter}.txt'):
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current_chapter -= 1
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offset = 0
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update_needed = True
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elif c == curses.KEY_LEFT and current_chapter > 0:
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current_chapter -= 1
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offset = 0
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update_needed = True
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# Quit
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elif c == ord('q'):
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break # No need to set update_needed since we are exiting
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curses.wrapper(main)
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