from libqtile import bar, hook
from libqtile.widget import base
[docs]
class Chord(base._TextBox):
"""Display current key chord"""
defaults = [
(
"chords_colors",
{},
"colors per chord in form of tuple {'chord_name': ('bg', 'fg')}. "
"Where a chord name is not in the dictionary, the default ``background`` and ``foreground``"
" values will be used.",
),
(
"name_transform",
lambda txt: txt,
"preprocessor for chord name it is pure function string -> string",
),
]
def __init__(self, width=bar.CALCULATED, **config):
base._TextBox.__init__(self, "", width, **config)
self.add_defaults(Chord.defaults)
def _configure(self, qtile, bar):
base._TextBox._configure(self, qtile, bar)
self.default_background = self.background
self.default_foreground = self.foreground
self.text = ""
self._setup_hooks()
def _setup_hooks(self):
def hook_enter_chord(chord_name):
if chord_name is True:
self.text = ""
self.reset_colours()
return
self.text = self.name_transform(chord_name)
if chord_name in self.chords_colors:
self.background, self.layout.colour = self.chords_colors.get(chord_name)
else:
self.reset_colours()
self.bar.draw()
hook.subscribe.enter_chord(hook_enter_chord)
hook.subscribe.leave_chord(self.clear)
def reset_colours(self):
self.background = self.default_background
self.layout.colour = self.default_foreground
def clear(self, *args):
self.reset_colours()
self.text = ""
self.bar.draw()