Deploy script for Windows
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Marco
165
audio_player.py
165
audio_player.py
@@ -1,5 +1,4 @@
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import os
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from pydub import AudioSegment
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from pygame import mixer
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from PyQt5.QtCore import QTimer, pyqtSlot, QObject
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@@ -7,123 +6,139 @@ from constants import Constants
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import qtawesome as qta
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class AudioPlayer(QObject): # Maybe useless inheriting from QObject
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"""This is the audio player widget. The only public methods are the __init__
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class AudioPlayer(QObject):
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"""Subclass QObject. Audio player widget for the audio samples.
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The only public methods are the __init__
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method, set_audio_player, which loads the current file and refresh_btns_colors.
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Everything else is managed internally."""
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__time_step = 500 # Milliseconds.
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_TIME_STEP = 500 # Milliseconds.
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def __init__(self, play, pause, stop, volume, audio_progress, active_color, inactive_color):
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def __init__(self, play,
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pause,
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stop,
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volume,
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audio_progress,
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active_color,
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inactive_color):
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"""Initialize the player."""
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super().__init__()
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self.__paused = False
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self.__first_call = True
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self.__play = play
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self.__pause = pause
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self.__stop = stop
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self.__volume = volume
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self.__audio_progress = audio_progress
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self.__audio_file = None
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self.__timer = QTimer()
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self.__timer.timeout.connect(self.__update_bar)
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self.__play.clicked.connect(self.__play_audio)
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self.__pause.clicked.connect(self.__pause_audio)
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self.__stop.clicked.connect(self.__stop_audio)
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self.__volume.valueChanged.connect(self.__set_volume)
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self.__play.setIconSize(self.__play.size())
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self.__pause.setIconSize(self.__pause.size())
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self.__stop.setIconSize(self.__stop.size())
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self._paused = False
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self._first_call = True
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self._play = play
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self._pause = pause
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self._stop = stop
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self._volume = volume
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self._audio_progress = audio_progress
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self._audio_file = None
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self._timer = QTimer()
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self._timer.timeout.connect(self._update_bar)
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self._play.clicked.connect(self._play_audio)
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self._pause.clicked.connect(self._pause_audio)
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self._stop.clicked.connect(self._stop_audio)
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self._volume.valueChanged.connect(self._set_volume)
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self._play.setIconSize(self._play.size())
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self._pause.setIconSize(self._pause.size())
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self._stop.setIconSize(self._stop.size())
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self.refresh_btns_colors(active_color, inactive_color)
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def refresh_btns_colors(self, active_color, inactive_color):
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self.__play.setIcon(qta.icon('fa5.play-circle',
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color=active_color,
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color_disabled=inactive_color))
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self.__pause.setIcon(qta.icon('fa5.pause-circle',
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color=active_color,
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color_disabled=inactive_color))
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self.__stop.setIcon(qta.icon('fa5.stop-circle',
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"""Repaint the buttons of the widgetd after the theme has changed."""
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self._play.setIcon(qta.icon('fa5.play-circle',
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color=active_color,
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color_disabled=inactive_color))
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self._pause.setIcon(qta.icon('fa5.pause-circle',
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color=active_color,
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color_disabled=inactive_color))
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self._stop.setIcon(qta.icon('fa5.stop-circle',
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color=active_color,
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color_disabled=inactive_color))
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@pyqtSlot()
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def __set_volume(self):
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def _set_volume(self):
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"""Set the volume of the audio samples."""
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if mixer.get_init():
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mixer.music.set_volume(
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self.__volume.value() / self.__volume.maximum()
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self._volume.value() / self._volume.maximum()
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)
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def __reset_audio_widget(self):
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def _reset_audio_widget(self):
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"""Reset the widget. Stop all playing samples."""
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if mixer.get_init():
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if mixer.music.get_busy():
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mixer.music.stop()
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self.__timer.stop()
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self._timer.stop()
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mixer.quit()
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self.__audio_progress.reset()
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self.__enable_buttons(False, False, False)
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self.__paused = False
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self._audio_progress.reset()
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self._enable_buttons(False, False, False)
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self._paused = False
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@pyqtSlot()
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def __update_bar(self):
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def _update_bar(self):
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"""Update the progress bar."""
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pos = mixer.music.get_pos()
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if pos == -1:
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self.__timer.stop()
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self.__audio_progress.reset()
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self.__enable_buttons(True, False, False)
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self._timer.stop()
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self._audio_progress.reset()
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self._enable_buttons(True, False, False)
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else:
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self.__audio_progress.setValue(pos)
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self._audio_progress.setValue(pos)
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def __set_max_progress_bar(self):
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self.__audio_progress.setMaximum(
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mixer.Sound(self.__audio_file).get_length() * 1000
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def _set_max_progress_bar(self):
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"""Set the maximum value of the progress bar."""
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self._audio_progress.setMaximum(
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mixer.Sound(self._audio_file).get_length() * 1000
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)
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def set_audio_player(self, fname = ""):
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self.__first_call = True
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self.__reset_audio_widget()
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def set_audio_player(self, fname=""):
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"""Set the current audio sample."""
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self._first_call = True
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self._reset_audio_widget()
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full_name = os.path.join(
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Constants.DATA_FOLDER,
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Constants.AUDIO_FOLDER,
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fname + '.ogg'
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)
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if os.path.exists(full_name):
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self.__play.setEnabled(True)
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self.__audio_file = full_name
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self._play.setEnabled(True)
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self._audio_file = full_name
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@pyqtSlot()
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def __play_audio(self):
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if not self.__paused:
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if self.__first_call:
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self.__first_call = False
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mixer.init(frequency=AudioSegment.from_ogg(
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self.__audio_file
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).frame_rate,
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buffer=2048)
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mixer.music.load(self.__audio_file)
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self.__set_volume()
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self.__set_max_progress_bar()
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def _play_audio(self):
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"""Play the audio sample."""
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if not self._paused:
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if self._first_call:
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self._first_call = False
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mixer.init(48000, -16, 1, 1024)
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mixer.music.load(self._audio_file)
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self._set_volume()
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self._set_max_progress_bar()
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mixer.music.play()
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else:
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mixer.music.unpause()
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self.__paused = False
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self.__timer.start(self.__time_step)
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self.__enable_buttons(False, True, True)
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self._paused = False
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self._timer.start(self._TIME_STEP)
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self._enable_buttons(False, True, True)
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@pyqtSlot()
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def __stop_audio(self):
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def _stop_audio(self):
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"""Stop the audio sample."""
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mixer.music.stop()
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self.__audio_progress.reset()
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self.__timer.stop()
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self.__enable_buttons(True, False, False)
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self._audio_progress.reset()
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self._timer.stop()
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self._enable_buttons(True, False, False)
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@pyqtSlot()
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def __pause_audio(self):
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def _pause_audio(self):
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"""Pause the audio sample."""
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mixer.music.pause()
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self.__timer.stop()
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self.__paused = True
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self.__enable_buttons(True, False, False)
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self._timer.stop()
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self._paused = True
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self._enable_buttons(True, False, False)
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def __enable_buttons(self, play_en, pause_en, stop_en):
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self.__play.setEnabled(play_en)
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self.__pause.setEnabled(pause_en)
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self.__stop.setEnabled(stop_en)
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def _enable_buttons(self, play_en, pause_en, stop_en):
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"""Set the three buttons status."""
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self._play.setEnabled(play_en)
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self._pause.setEnabled(pause_en)
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self._stop.setEnabled(stop_en)
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