class ActionsComponent(Component):
u"""
Simple component that provides undo/redo, record quantization toggle
and clip quantization handling.
"""
undo_button = ButtonControl(**ACTION_BUTTON_COLORS)
redo_button = ButtonControl(color=u'Misc.Shift',
pressed_color=u'Misc.ShiftOn',
disabled_color=u'DefaultButton.Disabled')
quantization_on_button = ToggleButtonControl(untoggled_color=u'Misc.Shift',
toggled_color=u'Misc.ShiftOn')
def __init__(self, *a, **k):
self.suppressing_control_notifications = BooleanContext()
super(ActionsComponent, self).__init__(*a, **k)
self._record_quantization = RecordingQuantization.rec_q_sixtenth
self._on_record_quantization_changed_in_live.subject = self.song
self._on_record_quantization_changed_in_live()
self._metronome_toggle = ToggleComponent(u'metronome', self.song)
def control_notifications_enabled(self):
return self.is_enabled() and not self.suppressing_control_notifications
def quantize_clip(self, clip):
raise isinstance(clip, Live.Clip.Clip) or AssertionError
clip.quantize(self._record_quantization, 1.0)
@undo_button.pressed
def undo_button(self, button):
if self.song.can_undo:
self.song.undo()
@redo_button.pressed
def redo_button(self, button):
if self.song.can_redo:
self.song.redo()
@quantization_on_button.toggled
def quantization_on_button(self, is_toggled, button):
self._record_quantization_on = is_toggled
self.song.midi_recording_quantization = self._record_quantization if self._record_quantization_on else RecordingQuantization.rec_q_no_q
@listens(u'midi_recording_quantization')
def _on_record_quantization_changed_in_live(self):
quant_value = self.song.midi_recording_quantization
quant_on = quant_value != RecordingQuantization.rec_q_no_q
if quant_on:
self._record_quantization = quant_value
self._record_quantization_on = quant_on
with self.suppressing_control_notifications():
self.quantization_on_button.is_toggled = quant_on
def set_metronome_button(self, button):
self._metronome_toggle.set_toggle_button(button)
def update(self):
super(ActionsComponent, self).update()
self._metronome_toggle.update()
class TransportComponent(TransportComponentBase):
play_button = ButtonControl(color=u'Transport.PlayOff')
jump_encoder = EncoderControl()
loop_start_encoder = EncoderControl()
def __init__(self, *a, **k):
super(TransportComponent, self).__init__(*a, **k)
self.__on_signature_numerator_changed.subject = self.song
self.__on_signature_denominator_changed.subject = self.song
self._session_record_toggle = ToggleComponent(u'session_record',
self.song,
parent=self)
self._calculate_distance_to_move()
def set_play_button(self, button):
self.play_button.set_control_element(button)
def set_session_record_button(self, button):
self._session_record_toggle.set_toggle_button(button)
@play_button.pressed
def play_button(self, _):
self.song.start_playing()
@jump_encoder.value
def jump_encoder(self, value, _):
self.song.jump_by(value * self._distance_to_move)
@loop_start_encoder.value
def loop_start_encoder(self, value, _):
self.song.loop_start = max(
0.0, self.song.loop_start + value * self._distance_to_move)
@listens(u'signature_numerator')
def __on_signature_numerator_changed(self):
self._calculate_distance_to_move()
@listens(u'signature_denominator')
def __on_signature_denominator_changed(self):
self._calculate_distance_to_move()
def _calculate_distance_to_move(self):
self._distance_to_move = old_div(4.0, self.song.signature_denominator
) * self.song.signature_numerator * 64
def _update_button_states(self):
super(TransportComponent, self)._update_button_states()
self.play_button.color = u'Transport.PlayOn' if self.song.is_playing else u'Transport.PlayOff'
def _update_stop_button_color(self):
self.stop_button.color = u'Transport.PlayOff' if self.song.is_playing else u'Transport.PlayOn'