# vim:fileencoding=utf-8:noet

from powerline.renderer import Renderer
from powerline.colorscheme import ATTR_BOLD, ATTR_ITALIC, ATTR_UNDERLINE


class TmuxRenderer(Renderer):
	'''Powerline tmux segment renderer.'''
	def hlstyle(self, fg=None, bg=None, attr=None):
		'''Highlight a segment.'''
		# We don't need to explicitly reset attributes, so skip those calls
		if not attr and not bg and not fg:
			return ''
		tmux_attr = []
		if fg is not None:
			if fg is False or fg[0] is False:
				tmux_attr += ['fg=default']
			else:
				tmux_attr += ['fg=colour' + str(fg[0])]
		if bg is not None:
			if bg is False or bg[0] is False:
				tmux_attr += ['bg=default']
			else:
				tmux_attr += ['bg=colour' + str(bg[0])]
		if attr is not None:
			if attr is False:
				tmux_attr += ['nobold', 'noitalics', 'nounderscore']
			else:
				if attr & ATTR_BOLD:
					tmux_attr += ['bold']
				else:
					tmux_attr += ['nobold']
				if attr & ATTR_ITALIC:
					tmux_attr += ['italics']
				else:
					tmux_attr += ['noitalics']
				if attr & ATTR_UNDERLINE:
					tmux_attr += ['underscore']
				else:
					tmux_attr += ['nounderscore']
		return '#[' + ','.join(tmux_attr) + ']'


renderer = TmuxRenderer