code: def __init__(self, parent=None):
      QtWidgets.QPushButton.__init__(self, parent)
      self.radius = 200
      self.setCheckable(True)
      self.state = None
      self.setState(0, 0)
      self.setFixedWidth(50)
      self.setFixedHeight(50)
  
file_path: pyqtgraph/pyqtgraph/widgets/JoystickButton.py
imports: from math import hypot
  from ..Qt import QtCore, QtGui, QtWidgets
label_desc: Use image node_id 1 to create a new JoystickButton object from inherited base classes: QtWidgets with example: obj = JoystickButton(parent)