85 lines
3.6 KiB
Python
85 lines
3.6 KiB
Python
# Pause/Resume functionality with position capture/restore
|
|
#
|
|
# Copyright (C) 2019 Eric Callahan <arksine.code@gmail.com>
|
|
#
|
|
# This file may be distributed under the terms of the GNU GPLv3 license.
|
|
|
|
class PauseResume:
|
|
def __init__(self, config):
|
|
self.printer = config.get_printer()
|
|
self.gcode = self.printer.lookup_object('gcode')
|
|
self.recover_velocity = config.getfloat('recover_velocity', 50.)
|
|
self.v_sd = None
|
|
self.is_paused = False
|
|
self.sd_paused = False
|
|
self.pause_command_sent = False
|
|
self.printer.register_event_handler("klippy:ready", self.handle_ready)
|
|
self.gcode.register_command("PAUSE", self.cmd_PAUSE)
|
|
self.gcode.register_command("RESUME", self.cmd_RESUME)
|
|
self.gcode.register_command("CLEAR_PAUSE", self.cmd_CLEAR_PAUSE)
|
|
self.gcode.register_command("CANCEL_PRINT", self.cmd_CANCEL_PRINT)
|
|
webhooks = self.printer.lookup_object('webhooks')
|
|
webhooks.register_endpoint("pause_resume/cancel",
|
|
self._handle_cancel_request)
|
|
webhooks.register_endpoint("pause_resume/pause",
|
|
self._handle_pause_request)
|
|
webhooks.register_endpoint("pause_resume/resume",
|
|
self._handle_resume_request)
|
|
def handle_ready(self):
|
|
self.v_sd = self.printer.lookup_object('virtual_sdcard', None)
|
|
def _handle_cancel_request(self, web_request):
|
|
self.gcode.run_script("CANCEL_PRINT")
|
|
def _handle_pause_request(self, web_request):
|
|
self.gcode.run_script("PAUSE")
|
|
def _handle_resume_request(self, web_request):
|
|
self.gcode.run_script("RESUME")
|
|
def get_status(self, eventtime):
|
|
return {
|
|
'is_paused': self.is_paused
|
|
}
|
|
def send_pause_command(self):
|
|
# This sends the appropriate pause command from an event. Note
|
|
# the difference between pause_command_sent and is_paused, the
|
|
# module isn't officially paused until the PAUSE gcode executes.
|
|
if not self.pause_command_sent:
|
|
if self.v_sd is not None and self.v_sd.is_active():
|
|
# Printing from virtual sd, run pause command
|
|
self.sd_paused = True
|
|
self.v_sd.do_pause()
|
|
else:
|
|
self.sd_paused = False
|
|
self.gcode.respond_info("action:paused")
|
|
self.pause_command_sent = True
|
|
def cmd_PAUSE(self, gcmd):
|
|
if self.is_paused:
|
|
gcmd.respond_info("Print already paused")
|
|
return
|
|
self.send_pause_command()
|
|
self.gcode.run_script_from_command("SAVE_GCODE_STATE STATE=PAUSE_STATE")
|
|
self.is_paused = True
|
|
def cmd_RESUME(self, gcmd):
|
|
if not self.is_paused:
|
|
gcmd.respond_info("Print is not paused, resume aborted")
|
|
return
|
|
velocity = gcmd.get_float('VELOCITY', self.recover_velocity)
|
|
self.gcode.run_script_from_command(
|
|
"RESTORE_GCODE_STATE STATE=PAUSE_STATE MOVE=1 MOVE_SPEED=%.4f"
|
|
% (velocity))
|
|
self.is_paused = False
|
|
self.pause_command_sent = False
|
|
if self.sd_paused:
|
|
# Printing from virtual sd, run pause command
|
|
self.v_sd.cmd_M24(gcmd)
|
|
else:
|
|
gcmd.respond_info("action:resumed")
|
|
def cmd_CLEAR_PAUSE(self, gcmd):
|
|
self.is_paused = self.pause_command_sent = False
|
|
def cmd_CANCEL_PRINT(self, gcmd):
|
|
self.cmd_PAUSE(gcmd)
|
|
if not self.sd_paused:
|
|
gcmd.respond_info("action:cancel")
|
|
self.cmd_CLEAR_PAUSE(gcmd)
|
|
|
|
def load_config(config):
|
|
return PauseResume(config)
|