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klippy: Add ConfigWrapper.getchoice method 

Add helper function that ensures a config option is one of several
choices.  This helps ensure that a proper error is raised if an
invalid choice is made.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2016-11-30 15:50:28 -05:00
parent 57244de37d
commit 2f97b2d7c2
3 changed files with 10 additions and 5 deletions
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5
klippy/heater.py
View File

@ -26,7 +26,7 @@ class PrinterHeater:
self.printer = printer self.printer = printer
self.config = config self.config = config
self.mcu_pwm = self.mcu_adc = None self.mcu_pwm = self.mcu_adc = None
self.thermistor_c = Thermistors.get(config.get('thermistor_type')) self.thermistor_c = config.getchoice('thermistor_type', Thermistors)
self.pullup_r = config.getfloat('pullup_resistor', 4700.) self.pullup_r = config.getfloat('pullup_resistor', 4700.)
self.min_extrude_temp = config.getfloat('min_extrude_temp', 170.) self.min_extrude_temp = config.getfloat('min_extrude_temp', 170.)
self.can_extrude = (self.min_extrude_temp <= 0.) self.can_extrude = (self.min_extrude_temp <= 0.)
@ -48,9 +48,8 @@ class PrinterHeater:
self.mcu_adc.set_minmax( self.mcu_adc.set_minmax(
SAMPLE_TIME, SAMPLE_COUNT, minval=min_adc, maxval=max_adc) SAMPLE_TIME, SAMPLE_COUNT, minval=min_adc, maxval=max_adc)
self.mcu_adc.set_adc_callback(REPORT_TIME, self.adc_callback) self.mcu_adc.set_adc_callback(REPORT_TIME, self.adc_callback)
control_algo = self.config.get('control', 'watermark')
algos = {'watermark': ControlBangBang, 'pid': ControlPID} algos = {'watermark': ControlBangBang, 'pid': ControlPID}
self.control = algos[control_algo](self, self.config) self.control = self.config.getchoice('control', algos)(self, self.config)
if self.printer.mcu.is_fileoutput(): if self.printer.mcu.is_fileoutput():
self.can_extrude = True self.can_extrude = True
def set_pwm(self, read_time, value): def set_pwm(self, read_time, value):

7
klippy/klippy.py
View File

@ -61,6 +61,13 @@ class ConfigWrapper:
def getboolean(self, option, default=sentinel): def getboolean(self, option, default=sentinel):
return self.get_wrapper( return self.get_wrapper(
self.printer.fileconfig.getboolean, option, default) self.printer.fileconfig.getboolean, option, default)
def getchoice(self, option, choices, default=sentinel):
c = self.get(option, default)
if c not in choices:
raise self.error(
"Option '%s' in section '%s' is not a valid choice" % (
option, self.section))
return choices[c]
def getsection(self, section): def getsection(self, section):
return ConfigWrapper(self.printer, section) return ConfigWrapper(self.printer, section)

3
klippy/toolhead.py
View File

@ -161,8 +161,7 @@ class ToolHead:
self.extruder = printer.objects.get('extruder') self.extruder = printer.objects.get('extruder')
kintypes = {'cartesian': cartesian.CartKinematics, kintypes = {'cartesian': cartesian.CartKinematics,
'delta': delta.DeltaKinematics} 'delta': delta.DeltaKinematics}
kin = config.get('kinematics', 'cartesian') self.kin = config.getchoice('kinematics', kintypes)(printer, config)
self.kin = kintypes[kin](printer, config)
self.max_speed, self.max_accel = self.kin.get_max_speed() self.max_speed, self.max_accel = self.kin.get_max_speed()
self.junction_deviation = config.getfloat('junction_deviation', 0.02) self.junction_deviation = config.getfloat('junction_deviation', 0.02)
self.move_queue = MoveQueue() self.move_queue = MoveQueue()