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47 lines
1.5 KiB
47 lines
1.5 KiB
"""Color definitions for curses."""
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import curses
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import logging
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from enum import IntEnum
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class ColorPair(IntEnum):
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# Colors for specific Gemtext line type.
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NORMAL = 0
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ERROR = 1
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LINK = 2
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LINK_ID = 3
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TITLE_1 = 4
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TITLE_2 = 5
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TITLE_3 = 6
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PREFORMATTED = 7
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BLOCKQUOTE = 8
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# Colors for other usage in the browser.
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DEBUG = 9
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LINK_PREVIEW = 10
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A_ITALIC = curses.A_ITALIC if hasattr(curses, "A_ITALIC") else curses.A_NORMAL
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def init_colors(bg: int =-1):
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curses.use_default_colors()
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curses.init_pair(ColorPair.DEBUG, curses.COLOR_BLACK, curses.COLOR_GREEN)
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try:
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curses.init_pair(ColorPair.NORMAL, curses.COLOR_WHITE, bg)
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curses.init_pair(ColorPair.ERROR, curses.COLOR_RED, bg)
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curses.init_pair(ColorPair.LINK, curses.COLOR_CYAN, bg)
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curses.init_pair(ColorPair.LINK_ID, curses.COLOR_WHITE, bg)
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curses.init_pair(ColorPair.TITLE_1, curses.COLOR_GREEN, bg)
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curses.init_pair(ColorPair.TITLE_2, curses.COLOR_MAGENTA, bg)
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curses.init_pair(ColorPair.TITLE_3, curses.COLOR_MAGENTA, bg)
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curses.init_pair(ColorPair.PREFORMATTED, curses.COLOR_YELLOW, bg)
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curses.init_pair(ColorPair.BLOCKQUOTE, curses.COLOR_BLUE, bg)
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curses.init_pair(ColorPair.LINK_PREVIEW, curses.COLOR_WHITE, bg)
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except curses.error:
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logging.error("Failed to init colors.")
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if bg == -1:
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logging.debug("Retrying with black background…")
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init_colors(bg=curses.COLOR_BLACK)
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