def __init__(self, parent):
# parent is the main_window object
self.__main_window = parent
# command line window
self.__edit_ctrl = CmdLineDock('Command', self.__main_window)
# dictionary with file action objects
self.__actions = {}
# categories in which commands are stored
self.__category = CmdCategory(self.__main_window)
# icons search path
self.__icon_dir = os.path.join(os.getcwd(), 'icons')
#add custom event
return
