def __init__(self, ipcon, uid, version):
PluginBase.__init__(self, ipcon, uid, 'Heart Rate Bricklet', version)
self.hr = BrickletHeartRate(uid, ipcon)
self.qtcb_heart_rate.connect(self.cb_heart_rate)
self.hr.register_callback(self.hr.CALLBACK_HEART_RATE,
self.qtcb_heart_rate.emit)
self.qtcb_beat_state_changed.connect(self.cb_beat_state_changed)
self.hr.register_callback(self.hr.CALLBACK_BEAT_STATE_CHANGED,
self.qtcb_beat_state_changed.emit)
self.heart_rate_label = HeartRateLabel()
self.heart_white_bitmap = bmp_to_pixmap('plugin_system/plugins/heart_rate/heart_white_small.bmp')
self.heart_red_bitmap = bmp_to_pixmap('plugin_system/plugins/heart_rate/heart_red_small.bmp')
self.heart_icon = QLabel()
self.heart_icon.setPixmap(self.heart_white_bitmap)
self.current_value = None
plot_list = [['', Qt.red, self.get_current_value]]
self.plot_widget = PlotWidget('Heart Rate [BPM]', plot_list)
layout_h = QHBoxLayout()
layout_h.addStretch()
layout_h.addWidget(self.heart_rate_label)
layout_h.addWidget(self.heart_icon)
layout_h.addStretch()
layout = QVBoxLayout(self)
layout.addLayout(layout_h)
layout.addWidget(self.plot_widget)
class HeartRate(PluginBase):
qtcb_heart_rate = pyqtSignal(int)
qtcb_beat_state_changed = pyqtSignal(int)
def __init__(self, ipcon, uid, version):
PluginBase.__init__(self, ipcon, uid, 'Heart Rate Bricklet', version)
self.hr = BrickletHeartRate(uid, ipcon)
self.qtcb_heart_rate.connect(self.cb_heart_rate)
self.hr.register_callback(self.hr.CALLBACK_HEART_RATE,
self.qtcb_heart_rate.emit)
self.qtcb_beat_state_changed.connect(self.cb_beat_state_changed)
self.hr.register_callback(self.hr.CALLBACK_BEAT_STATE_CHANGED,
self.qtcb_beat_state_changed.emit)
self.heart_rate_label = HeartRateLabel()
self.heart_white_bitmap = bmp_to_pixmap('plugin_system/plugins/heart_rate/heart_white_small.bmp')
self.heart_red_bitmap = bmp_to_pixmap('plugin_system/plugins/heart_rate/heart_red_small.bmp')
self.heart_icon = QLabel()
self.heart_icon.setPixmap(self.heart_white_bitmap)
self.current_value = None
plot_list = [['', Qt.red, self.get_current_value]]
self.plot_widget = PlotWidget('Heart Rate [BPM]', plot_list)
layout_h = QHBoxLayout()
layout_h.addStretch()
layout_h.addWidget(self.heart_rate_label)
layout_h.addWidget(self.heart_icon)
layout_h.addStretch()
layout = QVBoxLayout(self)
layout.addLayout(layout_h)
layout.addWidget(self.plot_widget)
def start(self):
async_call(self.hr.get_heart_rate, None, self.cb_heart_rate, self.increase_error_count)
async_call(self.hr.set_heart_rate_callback_period, 100, None, self.increase_error_count)
async_call(self.hr.enable_beat_state_changed_callback, None, None, self.increase_error_count)
self.plot_widget.stop = False
def stop(self):
async_call(self.hr.set_heart_rate_callback_period, 0, None, self.increase_error_count)
async_call(self.hr.disable_beat_state_changed_callback, None, None, self.increase_error_count)
self.plot_widget.stop = True
def get_url_part(self):
return 'heart_rate'
@staticmethod
def has_device_identifier(device_identifier):
return device_identifier == BrickletHeartRate.DEVICE_IDENTIFIER
def get_current_value(self):
return self.current_value
def cb_heart_rate(self, heart_rate):
self.current_value = heart_rate
self.heart_rate_label.setText(str(heart_rate))
def cb_beat_state_changed(self, state):
if state == self.hr.BEAT_STATE_RISING:
self.heart_icon.setPixmap(self.heart_red_bitmap)
else:
self.heart_icon.setPixmap(self.heart_white_bitmap)