71 lines
1.8 KiB
Python
71 lines
1.8 KiB
Python
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# vim:fileencoding=utf-8:noet
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from powerline.renderer import Renderer
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from powerline.colorscheme import ATTR_BOLD, ATTR_ITALIC, ATTR_UNDERLINE
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def int_to_rgb(num):
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r = (num >> 16) & 0xff
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g = (num >> 8) & 0xff
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b = num & 0xff
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return r, g, b
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class ShellRenderer(Renderer):
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'''Powerline shell segment renderer.'''
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escape_hl_start = ''
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escape_hl_end = ''
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term_truecolor = False
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tmux_escape = False
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screen_escape = False
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def hlstyle(self, fg=None, bg=None, attr=None):
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'''Highlight a segment.
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If an argument is None, the argument is ignored. If an argument is
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False, the argument is reset to the terminal defaults. If an argument
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is a valid color or attribute, it's added to the ANSI escape code.
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'''
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ansi = [0]
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if fg is not None:
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if fg is False or fg[0] is False:
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ansi += [39]
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else:
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if self.term_truecolor:
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ansi += [38, 2] + list(int_to_rgb(fg[1]))
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else:
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ansi += [38, 5, fg[0]]
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if bg is not None:
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if bg is False or bg[0] is False:
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ansi += [49]
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else:
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if self.term_truecolor:
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ansi += [48, 2] + list(int_to_rgb(bg[1]))
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else:
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ansi += [48, 5, bg[0]]
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if attr is not None:
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if attr is False:
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ansi += [22]
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else:
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if attr & ATTR_BOLD:
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ansi += [1]
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elif attr & ATTR_ITALIC:
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# Note: is likely not to work or even be inverse in place of
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# italic. Omit using this in colorschemes.
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ansi += [3]
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elif attr & ATTR_UNDERLINE:
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ansi += [4]
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r = '\033[{0}m'.format(';'.join(str(attr) for attr in ansi))
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if self.tmux_escape:
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r = '\033Ptmux;' + r.replace('\033', '\033\033') + '\033\\'
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elif self.screen_escape:
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r = '\033P' + r.replace('\033', '\033\033') + '\033\\'
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return self.escape_hl_start + r + self.escape_hl_end
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@staticmethod
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def escape(string):
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return string.replace('\\', '\\\\')
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renderer = ShellRenderer
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