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extruder_widget.py
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import kivy
from kivy.app import App
from kivy.properties import NumericProperty, ObjectProperty, DictProperty, BooleanProperty
from kivy.uix.boxlayout import BoxLayout
from kivy.logger import Logger
import math
class ExtruderWidget(BoxLayout):
bed_dg = ObjectProperty()
hotend_dg = ObjectProperty()
last_bed_temp = NumericProperty()
last_hotend_temp = NumericProperty()
curtool = NumericProperty(-1)
has_T1 = BooleanProperty(False)
def __init__(self, **kwargs):
super(ExtruderWidget, self).__init__(**kwargs)
self.app = App.get_running_app()
self.last_bed_temp = self.app.config.getfloat('Extruder', 'last_bed_temp')
self.last_hotend_temp = self.app.config.getfloat('Extruder', 'last_hotend_temp')
self.temp_changed = False
self.temp_set = False
self.app.bind(is_connected=self._connected)
def switch_active(self, instance, type, on, value):
if on:
if value == 'select':
MessageBox(text='Select a temperature first!').open()
instance.active = False
else:
self.set_temp(type, value)
self.temp_changed = True
# save temp whenever we turn it on (not saved if it is changed while already on)
if float(value) > 0:
self.set_last_temp(type, value)
else:
self.set_temp(type, '0')
self.temp_changed = True
def selected_temp(self, type, temp):
# new temp selected from dropdown
if type == 'hotend':
self.ids.set_hotend_temp.text = temp
self.last_hotend_temp = float(temp)
if self.ids.hotend_switch.active:
# update temp
self.set_temp(type, self.last_hotend_temp)
self.temp_changed = True
elif type == 'bed':
self.ids.set_bed_temp.text = temp
self.last_bed_temp = float(temp)
if self.ids.bed_switch.active:
# update temp
self.set_temp(type, self.last_bed_temp)
self.temp_changed = True
def adjust_temp(self, type, value):
if type == 'bed':
t = float(self.ids.set_bed_temp.text.split()[0])
self.ids.set_bed_temp.text = '{:1.1f}'.format(t + float(value))
self.selected_temp(type, self.ids.set_bed_temp.text)
else:
t = float(self.ids.set_hotend_temp.text)
self.ids.set_hotend_temp.text = '{:1.1f}'.format(t + float(value))
self.selected_temp(type, self.ids.set_hotend_temp.text)
def set_last_temp(self, type, value):
if type == 'bed':
self.last_bed_temp = float(value)
else:
self.last_hotend_temp = float(value)
self.app.config.set('Extruder', 'last_{}_temp'.format(type), value)
self.app.config.write()
def set_temp(self, type, temp):
''' called when the target temp is changed '''
if type == 'bed':
self.app.comms.write('M140 S{0}\n'.format(str(temp)))
elif type == 'hotend':
self.app.comms.write('M104 S{0}\n'.format(str(temp)))
def update_temp(self, temperatures):
''' called to update the temperature display'''
if self.temp_changed:
# This allows the setpoint to update on smoothie before using it to turn the heater on/off again
self.temp_changed = False
return
for type in temperatures:
temp, setpoint = temperatures[type]
if self.ids.temps_screen.current == 'graph':
self.ids.graph_view.update_temperature(type, temp, setpoint)
return
if type == 'bed':
if math.isinf(temp):
self.bed_dg.value = float('inf')
continue
self.bed_dg.value = temp
if not math.isnan(setpoint):
if setpoint > 0:
self.ids.set_bed_temp.text = str(setpoint)
self.bed_dg.setpoint_value = setpoint
else:
self.bed_dg.setpoint_value = float('nan')
if self.bed_switch.active:
self.bed_switch.active = False
elif type == 'hotend0' or type == 'hotend1':
if type == 'hotend1' and not self.has_T1:
self.has_T1 = True
if (self.ids.tool_t0.state == 'down' and type == 'hotend0') or (self.ids.tool_t1.state == 'down' and type == 'hotend1'):
if math.isinf(temp):
self.hotend_dg.value = float('inf')
continue
self.hotend_dg.value = temp
if not math.isnan(setpoint):
if setpoint > 0:
self.ids.set_hotend_temp.text = str(setpoint)
self.hotend_dg.setpoint_value = setpoint
else:
self.hotend_dg.setpoint_value = float('nan')
if self.hotend_switch.active:
self.hotend_switch.active = False
else:
self.hotend_dg.value = float('inf')
else:
Logger.error('Extruder: unknown temp type - ' + type)
def set_tool(self, t):
self.app.comms.write('T{}\n'.format(str(t)))
def update_length(self):
self.app.config.set('Extruder', 'length', self.ids.extrude_length.text)
self.app.config.write()
def update_speed(self):
self.app.config.set('Extruder', 'speed', self.ids.extrude_speed.text)
self.app.config.write()
def extrude(self):
''' called when the extrude button is pressed '''
Logger.debug(f'Extruder: extrude {self.ids.extrude_length.text} mm @ {self.ids.extrude_speed.text} mm/min')
if self.app.is_v2:
self.app.comms.write(f"$J E{self.ids.extrude_length.text} F{self.ids.extrude_speed.text}\n")
else:
self.app.comms.write('M120 G91 G1 E{0} F{1} M121\n'.format(self.ids.extrude_length.text, self.ids.extrude_speed.text))
def reverse(self):
''' called when the reverse button is pressed '''
Logger.debug('Extruder: reverse {0} mm @ {1} mm/min'.format(self.ids.extrude_length.text, self.ids.extrude_speed.text))
if self.app.is_v2:
self.app.comms.write(f"$J E-{self.ids.extrude_length.text} F{self.ids.extrude_speed.text}\n")
else:
self.app.comms.write('M120 G91 G1 E-{0} F{1} M121\n'.format(self.ids.extrude_length.text, self.ids.extrude_speed.text))
def update_buttons(self):
return "$I\n"
def _on_curtool(self):
self.ids.tool_t0.state = 'down' if self.curtool == 0 else 'normal'
self.ids.tool_t1.state = 'down' if self.curtool == 1 else 'normal'
def _connected(self, w, b):
if not b:
# disconnected so reset everything
self.ids.graph_view.update_temperature("disconnected", 0, 0)
self.bed_dg.value = float('inf')
self.hotend_dg.value = float('inf')
self.hotend_dg.setpoint_value = float('nan')
self.bed_dg.setpoint_value = float('nan')
self.bed_switch.active = False
self.hotend_switch.active = False
def on_touch_down(self, touch):
if self.ids.temps_screen.collide_point(touch.x, touch.y):
if touch.is_double_tap:
n = self.ids.temps_screen.next()
self.ids.temps_screen.current = n
return True
return super(ExtruderWidget, self).on_touch_down(touch)