andy@file03:~/linuxcnc/configs/my_LinuxCNC_machine_QTDragon$
cat pause_pin.py
print('\nUser command file for pause pin found\n')
# import the handlerfile to get reference to it's libraries.
# use <screenname>_handler
import qtdragon_hd_handler as SELF
# needed to instance patch
# reference:
ruivieira.dev/python-monkey-patching-for-readability.html
import types
############################################
# add new functions for new HAL pins to call
############################################
# external pin will call this
def external_pause_changed(data):
# only if runnung a program
if not SELF.STATUS.is_auto_running():
return
# only on true state of pin
# mean can only pause with the external pin
# toggle might be nicer...
if data:
# set pause button
self.w.action_pause.setChecked(data)
self.w.action_pause.clicked.emit(data)
# set spindle pause button
self.w.btn_spindle_pause.setChecked(data)
self.w.btn_spindle_pause.clicked.emit(data)
# unpause machine if external offsets state is false
def external_offset_state_changed(data):
# only if running a program
if not SELF.STATUS.is_auto_running():
return
# only if machine in on
if not SELF.STATUS.machine_is_on():
return
# only if pin is false
if not data:
print('automatic unpause')
# set pause button
self.w.action_pause.setChecked(data)
self.w.action_pause.clicked.emit(data)
###############################################
# add hook to make HAL pins at the right time
###############################################
# add a HAL pin with a call back
def after_override__(self):
try:
pin = SELF.QHAL.newpin("external-pause", SELF.QHAL.HAL_BIT, SELF.QHAL.HAL_IN)
pin.value_changed.connect(external_pause_changed)
pin = SELF.QHAL.newpin("external-eoffset-state", SELF.QHAL.HAL_BIT, SELF.QHAL.HAL_IN)
pin.value_changed.connect(external_offset_state_changed)
except Exception as e:
print(e)
# Here we are instance patching the original handler file to add a new
# function that calls our new function (of the same name)
# defined in this file
self.after_override__ = types.MethodType(after_override__, self)
#########################################
# override disable_spindle_pause method
#########################################
def disable_spindle_pause(self):
if self.w.action_pause.isChecked():
# set spindle pause button
self.w.btn_spindle_pause.setChecked(True)
self.w.btn_spindle_pause.clicked.emit(True)
# instance patch voodoo
self.disable_spindle_pause = types.MethodType(disable_spindle_pause, self)
#####################################
# override pause key binding method
#####################################
def on_keycall_pause(self,event,state,shift,cntrl):
if state and SELF.STATUS.is_auto_mode() and self.use_keyboard():
if not SELF.STATUS.stat.paused:
external_pause_changed(state)
else:
self.w.btn_spindle_pause.setChecked(False)
self.w.btn_spindle_pause.clicked.emit(False)
# instance patch voodoo
self.on_keycall_pause = types.MethodType(on_keycall_pause, self)
##############################################
# modify stop button to call an MDI command
##############################################
self.w.action_abort.setProperty('abort_action',False)
self.w.action_abort.setProperty('true_python_cmd_string', 'ACTION.ABORT();ACTION.CALL_INI_MDI(0)')
