forked from M-Labs/thermostat
ctrl_panel: Remove need for "mA" hack
Remove all instances of mA scaling scattered all around the code and specify it in the parameter tree with a single source of truth. Done by adding the option "pinSiPrefix" for all Parameters of type `int` or `float`, and using it for current Parameters with unit "mA".
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d96d36fb0c
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@ -4,6 +4,7 @@ from pyqtgraph.parametertree import (
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Parameter,
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registerParameterType,
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)
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import pytec.gui.view.pin_si_prefix
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class MutexParameter(pTypes.ListParameter):
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@ -136,10 +137,10 @@ class CtrlPanel(QObject):
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)
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self.params[channel].child(
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"pid", "pid_output_clamping", "output_min"
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).setValue(settings["parameters"]["output_min"] * 1000)
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).setValue(settings["parameters"]["output_min"])
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self.params[channel].child(
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"pid", "pid_output_clamping", "output_max"
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).setValue(settings["parameters"]["output_max"] * 1000)
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).setValue(settings["parameters"]["output_max"])
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self.params[channel].child(
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"output", "control_method", "target"
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).setValue(settings["target"])
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@ -154,7 +155,7 @@ class CtrlPanel(QObject):
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)
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self.params[channel].child(
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"output", "control_method", "i_set"
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).setValue(settings["i_set"] * 1000)
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).setValue(settings["i_set"])
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if settings["temperature"] is not None:
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self.params[channel].child("temperature").setValue(
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settings["temperature"]
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@ -188,10 +189,10 @@ class CtrlPanel(QObject):
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pwm_params["max_v"]["value"]
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)
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self.params[channel].child("output", "limits", "max_i_pos").setValue(
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pwm_params["max_i_pos"]["value"] * 1000
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pwm_params["max_i_pos"]["value"]
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)
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self.params[channel].child("output", "limits", "max_i_neg").setValue(
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pwm_params["max_i_neg"]["value"] * 1000
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pwm_params["max_i_neg"]["value"]
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)
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for limit in "max_i_pos", "max_i_neg", "max_v":
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@ -48,14 +48,16 @@
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"title": "Set Current",
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"type": "float",
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"value": 0,
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"step": 100,
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"step": 0.1,
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"limits": [
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-2000,
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2000
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-2,
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2
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],
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"triggerOnShow": true,
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"decimals": 6,
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"suffix": "mA",
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"pinSiPrefix": "m",
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"suffix": "A",
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"siPrefix": true,
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"param": [
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"pwm",
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"ch",
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@ -97,13 +99,15 @@
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"title": "Max Cooling Current",
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"type": "float",
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"value": 0,
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"step": 100,
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"step": 0.1,
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"decimals": 6,
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"limits": [
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0,
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2000
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2
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],
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"suffix": "mA",
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"siPrefix": true,
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"pinSiPrefix": "m",
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"suffix": "A",
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"param": [
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"pwm",
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"ch",
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@ -117,13 +121,15 @@
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"title": "Max Heating Current",
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"type": "float",
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"value": 0,
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"step": 100,
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"step": 0.1,
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"decimals": 6,
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"siPrefix": true,
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"pinSiPrefix": "m",
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"suffix": "A",
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"limits": [
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0,
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2000
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2
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],
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"suffix": "mA",
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"param": [
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"pwm",
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"ch",
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@ -296,13 +302,15 @@
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"name": "output_min",
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"title": "Minimum",
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"type": "float",
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"step": 100,
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"step": 0.1,
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"limits": [
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-2000,
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2000
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-2,
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2
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],
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"decimals": 6,
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"suffix": "mA",
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"siPrefix": true,
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"pinSiPrefix": "m",
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"suffix": "A",
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"param": [
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"pid",
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"ch",
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@ -315,13 +323,15 @@
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"name": "output_max",
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"title": "Maximum",
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"type": "float",
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"step": 100,
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"step": 0.1,
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"limits": [
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-2000,
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2000
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-2,
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2
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],
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"decimals": 6,
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"suffix": "mA",
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"siPrefix": true,
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"pinSiPrefix": "m",
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"suffix": "A",
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"param": [
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"pid",
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"ch",
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@ -358,12 +368,14 @@
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"type": "float",
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"value": 0,
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"decimals": 6,
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"step": 100,
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"step": 0.1,
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"limits": [
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-2000,
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2000
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-2,
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2
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],
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"suffix": "mA",
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"siPrefix": true,
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"pinSiPrefix": "m",
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"suffix": "A",
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"pid_autotune": [
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"test_current",
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"ch"
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95
pytec/pytec/gui/view/pin_si_prefix.py
Normal file
95
pytec/pytec/gui/view/pin_si_prefix.py
Normal file
@ -0,0 +1,95 @@
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from pyqtgraph import SpinBox
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import pyqtgraph.functions as fn
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from pyqtgraph.parametertree import registerParameterItemType
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from pyqtgraph.parametertree.parameterTypes import SimpleParameter, NumericParameterItem
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class PinSIPrefixSpinBox(SpinBox):
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"""
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Extension of PyQtGraph's SpinBox widget.
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Adds:
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* The "pinSiPrefix" option, where the siPrefix could be fixed to a
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particular scale instead of as determined by its value.
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"""
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def setOpts(self, **opts):
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if "pinSiPrefix" in opts:
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self.opts["pinSiPrefix"] = opts.pop("pinSiPrefix")
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super().setOpts(**opts)
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def formatText(self, prev=None):
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"""
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In addition to pyqtgraph.SpinBox's formatting, incorporate the
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'pinSiPrefix' mechanism, where SI prefixes could be fixed.
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"""
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# Code modified from the PyQtGraph source
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# get the number of decimal places to print
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decimals = self.opts['decimals']
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suffix = self.opts['suffix']
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prefix = self.opts['prefix']
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pin_si_prefix = self.opts.get("pinSiPrefix")
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# format the string
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val = self.value()
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if self.opts['siPrefix'] is True:
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# SI prefix was requested, so scale the value accordingly
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if pin_si_prefix is not None and pin_si_prefix in fn.SI_PREFIX_EXPONENTS:
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# fixed scale
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s = 10**-fn.SI_PREFIX_EXPONENTS[pin_si_prefix]
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p = pin_si_prefix
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elif self.val == 0 and prev is not None:
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# special case: if it's zero use the previous prefix
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(s, p) = fn.siScale(prev)
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else:
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(s, p) = fn.siScale(val)
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parts = {'value': val, 'suffix': suffix, 'decimals': decimals, 'siPrefix': p, 'scaledValue': s*val, 'prefix':prefix}
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else:
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# no SI prefix /suffix requested; scale is 1
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parts = {'value': val, 'suffix': suffix, 'decimals': decimals, 'siPrefix': '', 'scaledValue': val, 'prefix':prefix}
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parts['prefixGap'] = '' if parts['prefix'] == '' else ' '
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parts['suffixGap'] = '' if (parts['suffix'] == '' and parts['siPrefix'] == '') else ' '
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return self.opts['format'].format(**parts)
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class PinSIPrefixNumericParameterItem(NumericParameterItem):
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"""
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Subclasses PyQtGraph's `NumericParameterItem` and uses
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PinSIPrefixSpinBox for editing.
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"""
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def makeWidget(self):
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opts = self.param.opts
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t = opts['type']
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defs = {
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'value': 0, 'min': None, 'max': None,
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'step': 1.0, 'dec': False,
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'siPrefix': False, 'suffix': '', 'decimals': 3,
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'pinSiPrefix': None,
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}
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if t == 'int':
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defs['int'] = True
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defs['minStep'] = 1.0
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for k in defs:
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if k in opts:
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defs[k] = opts[k]
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if 'limits' in opts:
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defs['min'], defs['max'] = opts['limits']
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w = PinSIPrefixSpinBox()
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w.setOpts(**defs)
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w.sigChanged = w.sigValueChanged
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w.sigChanging = w.sigValueChanging
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return w
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registerParameterItemType(
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"float", PinSIPrefixNumericParameterItem, SimpleParameter, override=True
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)
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registerParameterItemType(
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"int", PinSIPrefixNumericParameterItem, SimpleParameter, override=True
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)
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@ -267,9 +267,6 @@ class MainWindow(QtWidgets.QMainWindow):
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for inner_param, change, data in changes:
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if change == "value":
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if inner_param.opts.get("param", None) is not None:
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if inner_param.opts.get("suffix", None) == "mA":
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data /= 1000 # Given in mA
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thermostat_param = inner_param.opts["param"]
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if thermostat_param[1] == "ch":
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thermostat_param[1] = ch
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