def __init__(self, parent=0, name='', flags=0):
"""constructor """
QtOpenGL.QGLWidget.__init__(self, parent)
self.parent = parent
self.setFocusPolicy(QtCore.Qt.ClickFocus)
self.timer = QtCore.QTimer()
self.timer.setInterval(1000.0 /
config.FPS_RENDERING) # in milliseconds
self.camera = None
self.startTime = 0.0
self.loopTime = 10.0
self.is_paused = False
self.still_frame = True
self.current_time = 0
self.audio = None
self.viewer = None
self.orginal_data = None
self.aspect_ratio = None
self.fps_calculator = FPSCalculator(start_time=self.startTime,
smoothness=30)
self.size = None
