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linuswck:master
linuswck:gui_dev-ctrl_panel
linuswck:gui_dev
linuswck:fix_incorrect_dac_cal
linuswck:fix_wrong_current_limit_duty_cycle_cal
linuswck:save_i_set_into_ch_cfg
linuswck:clamp_set_fns_to_design_spec
linuswck:pid_setpoint_kick_fix
linuswck:improve_adc_readings
linuswck:GUI
linuswck:softspi
M-Labs:master
M-Labs:dev-gui
M-Labs:GUI
M-Labs:softspi
...
compare: linuswck:a6c852369f251f4a0f89c35a24d909ed8641c497
Branches Tags
linuswck:gui_dev-ctrl_panel
linuswck:gui_dev
linuswck:fix_incorrect_dac_cal
linuswck:fix_wrong_current_limit_duty_cycle_cal
linuswck:save_i_set_into_ch_cfg
linuswck:clamp_set_fns_to_design_spec
linuswck:pid_setpoint_kick_fix
linuswck:improve_adc_readings
linuswck:master
linuswck:GUI
linuswck:softspi
M-Labs:master
M-Labs:dev-gui
M-Labs:GUI
M-Labs:softspi

16 Commits
38099d6d7b ... a6c852369f

Author SHA1 Message Date
atse
a6c852369f ctrl_panel: Reformat SpinBox text always if valid 
The parameter SpinBoxes previously would only update if the interpreted
value was changed, missing cases where the text would have changed but
the value stays the same, e.g. removing trailing decimal zeros.
 2024-08-07 17:59:32 +08:00
atse
3ed181403f ctrl_panel: Move postfilter into its own group 2024-08-07 17:59:27 +08:00
atse
205f5c0ae9 ctrl_panel: Use new locking mechanism from Kirdy 2024-08-07 17:59:07 +08:00
atse
3c4bc4b50c ctrl_panel: Fix editing fields with unit "°C" 
A faulty regular expression within PyQtGraph causes any Parameter with a
suffix that doesn't begin with an alphanumeric character (as matched
with \w) to act abnormally. For instance, entering "100 °C" into the
input boxes gets interpreted as 10 °C.

Patch the FLOAT_REGEX in PyQtGraph to simply match for any character in
the suffix group.
 2024-08-07 17:59:06 +08:00
atse
3a0bb66212 ctrl_panel: More appropriate steps and fixes 2024-08-07 17:59:06 +08:00
atse
9ebdcfc54f ctrl_panel: Put plotted values into readings group 
For more intuitiveness to first-time users
 2024-08-07 17:59:06 +08:00
atse
980cabefb5 ctrl_panel: Fix max_v to only have unit "V" 
As most users do not need to limit TEC voltage with accuracy of less
than 1mV.
 2024-08-07 17:59:06 +08:00
atse
e1861263b2 ctrl_panel: Indicate active parameter of control 
Instead of hiding the inactive control parameter, underline and bold the
active control parameter title, e.g. "Set Current" when control method
is constant current, and "Setpoint" when it is temperature PID.
 2024-08-07 17:59:06 +08:00
atse
dbbf30bfeb ctrl_panel: Limits fixes 
* PID Autotune test current should be positive

* max_v should be 4 V not 5 V

* r0 should not be negative
 2024-08-07 17:59:06 +08:00
atse
159c70972e ctrl_panel: Code cleanup 
* Remove unnecessary duplication of `THERMOSTAT_PARAMETERS`

* i -> ch

* Separate ParameterTree and Parameter initiation

* Remove extra "channel" option to root parameters, as the "value"
option is already the channel number
 2024-08-07 17:59:06 +08:00
atse
651e323206 ctrl_panel: PID Auto Tune -> PID Autotune 2024-08-07 17:59:06 +08:00
atse
d6ba9be20c ctrl_panel: Stop crushing spinboxes 
It might not be the case on some themes, but on the default Qt theme the
spinbox are a bit too short for the containing numbers. See
https://github.com/pyqtgraph/pyqtgraph/issues/701.
 2024-08-07 17:59:06 +08:00
atse
66556f4c29 ctrl_panel: Pin down units for editable fields 
User input always has the same order of magnitude, so allowing multiple
siPrefixes would be unwanted complexity. Don't allow them to be changed.

The Parameter option "noUnitEditing" is added to do so by the following
measures:

1. Don't validate for changed siPrefix (if pinned) and suffix, which
avoids their removal.

2. Avoid getting the cursor embedded within the unit.
 2024-08-07 17:59:06 +08:00
atse
c59e3e7ac4 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".
 2024-08-07 17:59:06 +08:00
atse
d96d36fb0c ctrl_panel: Appropriate units for measured current 
Allow the readonly display of current to vary its SI prefix in the unit,
since as a display entry it won't have the unit adjustment problem.
 2024-08-07 17:59:06 +08:00
atse
ef7dbf9b5e ctrl_panel: Improve postfilter description 2024-08-07 17:59:03 +08:00
4 changed files with 377 additions and 164 deletions
Show Stats Expand all files Collapse all files

154
pytec/pytec/gui/view/ctrl_panel.py
View File

@ -4,42 +4,7 @@ from pyqtgraph.parametertree import (
Parameter, Parameter,
registerParameterType, registerParameterType,
) )
import pytec.gui.view.unitful
class MutexParameter(pTypes.ListParameter):
"""
Mutually exclusive parameter where only one of its children is visible at a time, list selectable.
The ordering of the list items determines which children will be visible.
"""
def __init__(self, **opts):
super().__init__(**opts)
self.sigValueChanged.connect(self.show_chosen_child)
self.sigValueChanged.emit(self, self.opts["value"])
def _get_param_from_value(self, value):
if isinstance(self.opts["limits"], dict):
values_list = list(self.opts["limits"].values())
else:
values_list = self.opts["limits"]
return self.children()[values_list.index(value)]
@pyqtSlot(object, object)
def show_chosen_child(self, value):
for param in self.children():
param.hide()
child_to_show = self._get_param_from_value(value.value())
child_to_show.show()
if child_to_show.opts.get("triggerOnShow", None):
child_to_show.sigValueChanged.emit(child_to_show, child_to_show.value())
registerParameterType("mutex", MutexParameter)
def set_tree_label_tips(tree): def set_tree_label_tips(tree):
@ -65,57 +30,50 @@ class CtrlPanel(QObject):
self.trees_ui = trees_ui self.trees_ui = trees_ui
self.NUM_CHANNELS = len(trees_ui) self.NUM_CHANNELS = len(trees_ui)
self.THERMOSTAT_PARAMETERS = [param_tree for i in range(self.NUM_CHANNELS)] def _set_value_with_lock(self, value):
if not self.opts.get("lock"):
self.setValue(value)
Parameter.set_value_with_lock = _set_value_with_lock
self.params = [ self.params = [
Parameter.create( Parameter.create(
name=f"Thermostat Channel {ch} Parameters", name=f"Thermostat Channel {ch} Parameters",
type="group", type="group",
value=ch, value=ch,
children=self.THERMOSTAT_PARAMETERS[ch], children=param_tree,
) )
for ch in range(self.NUM_CHANNELS) for ch in range(self.NUM_CHANNELS)
] ]
for i, param in enumerate(self.params): for ch, tree in enumerate(self.trees_ui):
param.channel = i
for i, tree in enumerate(self.trees_ui):
tree.setHeaderHidden(True) tree.setHeaderHidden(True)
tree.setParameters(self.params[i], showTop=False) tree.setParameters(self.params[ch], showTop=False)
self.params[i].setValue = self._setValue
self.params[i].sigTreeStateChanged.connect(sigTreeStateChanged_handle)
set_tree_label_tips(tree) set_tree_label_tips(tree)
for handle in sigActivated_handles[i]: for ch, param in enumerate(self.params):
self.params[i].child(*handle[0]).sigActivated.connect(handle[1]) param.sigTreeStateChanged.connect(sigTreeStateChanged_handle)
def _setValue(self, value, blockSignal=None): for handle in sigActivated_handles[ch]:
""" param.child(*handle[0]).sigActivated.connect(handle[1])
Implement 'lock' mechanism for Parameter Type
Modified from the source def _highlight_usage(param, control_method):
""" for item in param.child("i_set").items:
try: font = item.font(0)
if blockSignal is not None: font.setUnderline(control_method == "constant_current")
self.sigValueChanged.disconnect(blockSignal) font.setBold(control_method == "constant_current")
value = self._interpretValue(value) item.setFont(0, font)
if fn.eq(self.opts["value"], value): for item in param.child("target").items:
return value font = item.font(0)
font.setUnderline(control_method == "temperature_pid")
font.setBold(control_method == "temperature_pid")
item.setFont(0, font)
if "lock" in self.opts.keys(): param.child("output", "control_method").sigValueChanged.connect(_highlight_usage)
if self.opts["lock"]: for item in param.child("output", "control_method").items:
return value font = item.font(0)
self.opts["value"] = value font.setBold(True)
self.sigValueChanged.emit( item.setFont(0, font)
self, value
) # value might change after signal is received by tree item
finally:
if blockSignal is not None:
self.sigValueChanged.connect(blockSignal)
return self.opts["value"]
def change_params_title(self, channel, path, title): def change_params_title(self, channel, path, title):
self.params[channel].child(*path).setOpts(title=title) self.params[channel].child(*path).setOpts(title=title)
@ -125,57 +83,59 @@ class CtrlPanel(QObject):
for settings in pid_settings: for settings in pid_settings:
channel = settings["channel"] channel = settings["channel"]
with QSignalBlocker(self.params[channel]): with QSignalBlocker(self.params[channel]):
self.params[channel].child("pid", "kp").setValue( self.params[channel].child("pid", "kp").set_value_with_lock(
settings["parameters"]["kp"] settings["parameters"]["kp"]
) )
self.params[channel].child("pid", "ki").setValue( self.params[channel].child("pid", "ki").set_value_with_lock(
settings["parameters"]["ki"] settings["parameters"]["ki"]
) )
self.params[channel].child("pid", "kd").setValue( self.params[channel].child("pid", "kd").set_value_with_lock(
settings["parameters"]["kd"] settings["parameters"]["kd"]
) )
self.params[channel].child( self.params[channel].child(
"pid", "pid_output_clamping", "output_min" "pid", "pid_output_clamping", "output_min"
).setValue(settings["parameters"]["output_min"] * 1000) ).set_value_with_lock(settings["parameters"]["output_min"])
self.params[channel].child( self.params[channel].child(
"pid", "pid_output_clamping", "output_max" "pid", "pid_output_clamping", "output_max"
).setValue(settings["parameters"]["output_max"] * 1000) ).set_value_with_lock(settings["parameters"]["output_max"])
self.params[channel].child( self.params[channel].child(
"output", "control_method", "target" "output", "control_method", "target"
).setValue(settings["target"]) ).set_value_with_lock(settings["target"])
@pyqtSlot("QVariantList") @pyqtSlot("QVariantList")
def update_report(self, report_data): def update_report(self, report_data):
for settings in report_data: for settings in report_data:
channel = settings["channel"] channel = settings["channel"]
with QSignalBlocker(self.params[channel]): with QSignalBlocker(self.params[channel]):
self.params[channel].child("output", "control_method").setValue( self.params[channel].child(
"output", "control_method"
).set_value_with_lock(
"temperature_pid" if settings["pid_engaged"] else "constant_current" "temperature_pid" if settings["pid_engaged"] else "constant_current"
) )
self.params[channel].child( self.params[channel].child(
"output", "control_method", "i_set" "output", "control_method", "i_set"
).setValue(settings["i_set"] * 1000) ).set_value_with_lock(settings["i_set"])
if settings["temperature"] is not None: if settings["temperature"] is not None:
self.params[channel].child("temperature").setValue( self.params[channel].child(
settings["temperature"] "readings", "temperature"
) ).set_value_with_lock(settings["temperature"])
if settings["tec_i"] is not None: if settings["tec_i"] is not None:
self.params[channel].child("tec_i").setValue( self.params[channel].child(
settings["tec_i"] * 1000 "readings", "tec_i"
) ).set_value_with_lock(settings["tec_i"])
@pyqtSlot("QVariantList") @pyqtSlot("QVariantList")
def update_thermistor(self, sh_data): def update_thermistor(self, sh_data):
for sh_param in sh_data: for sh_param in sh_data:
channel = sh_param["channel"] channel = sh_param["channel"]
with QSignalBlocker(self.params[channel]): with QSignalBlocker(self.params[channel]):
self.params[channel].child("thermistor", "t0").setValue( self.params[channel].child("thermistor", "t0").set_value_with_lock(
sh_param["params"]["t0"] - 273.15 sh_param["params"]["t0"] - 273.15
) )
self.params[channel].child("thermistor", "r0").setValue( self.params[channel].child("thermistor", "r0").set_value_with_lock(
sh_param["params"]["r0"] sh_param["params"]["r0"]
) )
self.params[channel].child("thermistor", "b").setValue( self.params[channel].child("thermistor", "b").set_value_with_lock(
sh_param["params"]["b"] sh_param["params"]["b"]
) )
@ -186,15 +146,15 @@ class CtrlPanel(QObject):
for pwm_params in pwm_data: for pwm_params in pwm_data:
channel = pwm_params["channel"] channel = pwm_params["channel"]
with QSignalBlocker(self.params[channel]): with QSignalBlocker(self.params[channel]):
self.params[channel].child("output", "limits", "max_v").setValue( self.params[channel].child(
pwm_params["max_v"]["value"] "output", "limits", "max_v"
) ).set_value_with_lock(pwm_params["max_v"]["value"])
self.params[channel].child("output", "limits", "max_i_pos").setValue( self.params[channel].child(
pwm_params["max_i_pos"]["value"] * 1000 "output", "limits", "max_i_pos"
) ).set_value_with_lock(pwm_params["max_i_pos"]["value"])
self.params[channel].child("output", "limits", "max_i_neg").setValue( self.params[channel].child(
pwm_params["max_i_neg"]["value"] * 1000 "output", "limits", "max_i_neg"
) ).set_value_with_lock(pwm_params["max_i_neg"]["value"])
for limit in "max_i_pos", "max_i_neg", "max_v": for limit in "max_i_pos", "max_i_neg", "max_v":
if pwm_params[limit]["value"] == 0.0: if pwm_params[limit]["value"] == 0.0:
@ -206,6 +166,6 @@ class CtrlPanel(QObject):
for postfilter_params in postfilter_data: for postfilter_params in postfilter_data:
channel = postfilter_params["channel"] channel = postfilter_params["channel"]
with QSignalBlocker(self.params[channel]): with QSignalBlocker(self.params[channel]):
self.params[channel].child("thermistor", "rate").setValue( self.params[channel].child("postfilter", "rate").set_value_with_lock(
postfilter_params["rate"] postfilter_params["rate"]
) )

157
pytec/pytec/gui/view/param_tree.json
View File

@ -1,10 +1,17 @@
{ {
"ctrl_panel": [ "ctrl_panel": [
{
"name": "readings",
"title": "Readings",
"type": "group",
"tip": "Thermostat readings",
"children": [
{ {
"name": "temperature", "name": "temperature",
"title": "Temperature", "title": "Temperature",
"type": "float", "type": "float",
"format": "{value:.4f} °C", "format": "{value:.4f} {suffix}",
"suffix": "°C",
"readonly": true, "readonly": true,
"tip": "The measured temperature at the thermistor" "tip": "The measured temperature at the thermistor"
}, },
@ -12,10 +19,13 @@
"name": "tec_i", "name": "tec_i",
"title": "Current through TEC", "title": "Current through TEC",
"type": "float", "type": "float",
"suffix": "mA", "siPrefix": true,
"suffix": "A",
"decimals": 6, "decimals": 6,
"readonly": true, "readonly": true,
"tip": "The measured current through the TEC" "tip": "The measured current through the TEC"
}
]
}, },
{ {
"name": "output", "name": "output",
@ -27,7 +37,7 @@
{ {
"name": "control_method", "name": "control_method",
"title": "Control Method", "title": "Control Method",
"type": "mutex", "type": "list",
"limits": { "limits": {
"Constant Current": "constant_current", "Constant Current": "constant_current",
"Temperature PID": "temperature_pid" "Temperature PID": "temperature_pid"
@ -47,14 +57,17 @@
"title": "Set Current", "title": "Set Current",
"type": "float", "type": "float",
"value": 0, "value": 0,
"step": 100, "step": 0.1,
"limits": [ "limits": [
-2000, -2,
2000 2
], ],
"triggerOnShow": true,
"decimals": 6, "decimals": 6,
"suffix": "mA", "pinSiPrefix": "m",
"suffix": "A",
"siPrefix": true,
"noUnitEditing": true,
"compactHeight": false,
"param": [ "param": [
"pwm", "pwm",
"ch", "ch",
@ -73,7 +86,10 @@
-273, -273,
300 300
], ],
"format": "{value:.4f} °C", "format": "{value:.4f} {suffix}",
"suffix": "°C",
"noUnitEditing": true,
"compactHeight": false,
"param": [ "param": [
"pid", "pid",
"ch", "ch",
@ -96,13 +112,17 @@
"title": "Max Cooling Current", "title": "Max Cooling Current",
"type": "float", "type": "float",
"value": 0, "value": 0,
"step": 100, "step": 0.1,
"decimals": 6, "decimals": 6,
"limits": [ "limits": [
0, 0,
2000 2
], ],
"suffix": "mA", "siPrefix": true,
"pinSiPrefix": "m",
"suffix": "A",
"noUnitEditing": true,
"compactHeight": false,
"param": [ "param": [
"pwm", "pwm",
"ch", "ch",
@ -116,13 +136,17 @@
"title": "Max Heating Current", "title": "Max Heating Current",
"type": "float", "type": "float",
"value": 0, "value": 0,
"step": 100, "step": 0.1,
"decimals": 6, "decimals": 6,
"siPrefix": true,
"pinSiPrefix": "m",
"suffix": "A",
"noUnitEditing": true,
"limits": [ "limits": [
0, 0,
2000 2
], ],
"suffix": "mA", "compactHeight": false,
"param": [ "param": [
"pwm", "pwm",
"ch", "ch",
@ -137,12 +161,14 @@
"type": "float", "type": "float",
"value": 0, "value": 0,
"step": 0.1, "step": 0.1,
"decimals": 3,
"limits": [ "limits": [
0, 0,
5 4
], ],
"siPrefix": true,
"suffix": "V", "suffix": "V",
"noUnitEditing": true,
"compactHeight": false,
"param": [ "param": [
"pwm", "pwm",
"ch", "ch",
@ -160,7 +186,7 @@
"title": "Thermistor Settings", "title": "Thermistor Settings",
"expanded": true, "expanded": true,
"type": "group", "type": "group",
"tip": "Settings of the connected thermistor\n- Parameters for the resistance to temperature conversion (with the B-Parameter equation)\n- Settings for the 50/60 Hz filter with the thermistor", "tip": "Parameters for the resistance to temperature conversion with the B-Parameter equation",
"children": [ "children": [
{ {
"name": "t0", "name": "t0",
@ -172,7 +198,10 @@
-100, -100,
100 100
], ],
"format": "{value:.4f} °C", "format": "{value:.4f} {suffix}",
"suffix": "°C",
"noUnitEditing": true,
"compactHeight": false,
"param": [ "param": [
"s-h", "s-h",
"ch", "ch",
@ -186,9 +215,13 @@
"title": "R₀", "title": "R₀",
"type": "float", "type": "float",
"value": 10000, "value": 10000,
"step": 1, "step": 100,
"min": 0,
"siPrefix": true, "siPrefix": true,
"pinSiPrefix": "k",
"suffix": "Ω", "suffix": "Ω",
"noUnitEditing": true,
"compactHeight": false,
"param": [ "param": [
"s-h", "s-h",
"ch", "ch",
@ -202,9 +235,11 @@
"title": "B", "title": "B",
"type": "float", "type": "float",
"value": 3950, "value": 3950,
"step": 1, "step": 10,
"suffix": "K", "suffix": "K",
"noUnitEditing": true,
"decimals": 4, "decimals": 4,
"compactHeight": false,
"param": [ "param": [
"s-h", "s-h",
"ch", "ch",
@ -212,10 +247,18 @@
], ],
"tip": "The Beta Parameter", "tip": "The Beta Parameter",
"lock": false "lock": false
}
]
}, },
{
"name": "postfilter",
"title": "50/60 Hz filter settings",
"type": "group",
"tip": "Settings for the 50/60 Hz filter with the thermistor",
"children": [
{ {
"name": "rate", "name": "rate",
"title": "Postfilter Rate", "title": "Rejection",
"type": "list", "type": "list",
"value": 16.67, "value": 16.67,
"param": [ "param": [
@ -224,11 +267,11 @@
"rate" "rate"
], ],
"limits": { "limits": {
"Off": null, "Off @ 10 Hz": null,
"16.67 Hz": 16.67, "47 dB @ 10.41 Hz": 27.0,
"20 Hz": 20.0, "62 dB @ 10 Hz": 21.25,
"21.25 Hz": 21.25, "86 dB @ 9.1 Hz": 20.0,
"27 Hz": 27.0 "92 dB @ 8.4 Hz": 16.67
}, },
"tip": "Trade off effective sampling rate and rejection of (50±1) Hz and (60±1) Hz", "tip": "Trade off effective sampling rate and rejection of (50±1) Hz and (60±1) Hz",
"lock": false "lock": false
@ -247,7 +290,7 @@
"title": "Kp", "title": "Kp",
"type": "float", "type": "float",
"step": 0.1, "step": 0.1,
"suffix": "", "compactHeight": false,
"param": [ "param": [
"pid", "pid",
"ch", "ch",
@ -262,6 +305,8 @@
"type": "float", "type": "float",
"step": 0.1, "step": 0.1,
"suffix": "Hz", "suffix": "Hz",
"noUnitEditing": true,
"compactHeight": false,
"param": [ "param": [
"pid", "pid",
"ch", "ch",
@ -276,6 +321,8 @@
"type": "float", "type": "float",
"step": 0.1, "step": 0.1,
"suffix": "s", "suffix": "s",
"noUnitEditing": true,
"compactHeight": false,
"param": [ "param": [
"pid", "pid",
"ch", "ch",
@ -295,13 +342,17 @@
"name": "output_min", "name": "output_min",
"title": "Minimum", "title": "Minimum",
"type": "float", "type": "float",
"step": 100, "step": 0.1,
"limits": [ "limits": [
-2000, -2,
2000 2
], ],
"decimals": 6, "decimals": 6,
"suffix": "mA", "siPrefix": true,
"pinSiPrefix": "m",
"suffix": "A",
"noUnitEditing": true,
"compactHeight": false,
"param": [ "param": [
"pid", "pid",
"ch", "ch",
@ -314,13 +365,17 @@
"name": "output_max", "name": "output_max",
"title": "Maximum", "title": "Maximum",
"type": "float", "type": "float",
"step": 100, "step": 0.1,
"limits": [ "limits": [
-2000, -2,
2000 2
], ],
"decimals": 6, "decimals": 6,
"suffix": "mA", "siPrefix": true,
"pinSiPrefix": "m",
"suffix": "A",
"noUnitEditing": true,
"compactHeight": false,
"param": [ "param": [
"pid", "pid",
"ch", "ch",
@ -333,7 +388,7 @@
}, },
{ {
"name": "pid_autotune", "name": "pid_autotune",
"title": "PID Auto Tune", "title": "PID Autotune",
"expanded": false, "expanded": false,
"type": "group", "type": "group",
"tip": "Automatically tune PID parameters", "tip": "Automatically tune PID parameters",
@ -344,7 +399,10 @@
"type": "float", "type": "float",
"value": 20, "value": 20,
"step": 0.1, "step": 0.1,
"format": "{value:.4f} °C", "format": "{value:.4f} {suffix}",
"suffix": "°C",
"noUnitEditing": true,
"compactHeight": false,
"pid_autotune": [ "pid_autotune": [
"target_temp", "target_temp",
"ch" "ch"
@ -357,12 +415,16 @@
"type": "float", "type": "float",
"value": 0, "value": 0,
"decimals": 6, "decimals": 6,
"step": 100, "step": 0.1,
"limits": [ "limits": [
-2000, 0,
2000 2
], ],
"suffix": "mA", "siPrefix": true,
"pinSiPrefix": "m",
"suffix": "A",
"noUnitEditing": true,
"compactHeight": false,
"pid_autotune": [ "pid_autotune": [
"test_current", "test_current",
"ch" "ch"
@ -375,8 +437,10 @@
"type": "float", "type": "float",
"value": 1.5, "value": 1.5,
"step": 0.1, "step": 0.1,
"prefix": "±", "format": "{value:.4f} {suffix}",
"format": "{value:.4f} °C", "suffix": "K",
"noUnitEditing": true,
"compactHeight": false,
"pid_autotune": [ "pid_autotune": [
"temp_swing", "temp_swing",
"ch" "ch"
@ -389,7 +453,10 @@
"type": "float", "type": "float",
"value": 3.0, "value": 3.0,
"step": 0.1, "step": 0.1,
"format": "{value:.4f} s", "format": "{value:.4f} {suffix}",
"noUnitEditing": true,
"suffix": "s",
"compactHeight": false,
"pid_autotune": [ "pid_autotune": [
"lookback", "lookback",
"ch" "ch"

185
pytec/pytec/gui/view/unitful.py Normal file
View File

@ -0,0 +1,185 @@
import re
from PyQt6.QtCore import QSignalBlocker
from PyQt6.QtGui import QValidator
from pyqtgraph import SpinBox
import pyqtgraph.functions as fn
from pyqtgraph.parametertree import registerParameterItemType
from pyqtgraph.parametertree.parameterTypes import SimpleParameter, NumericParameterItem
# See https://github.com/pyqtgraph/pyqtgraph/issues/3115
fn.FLOAT_REGEX = re.compile(
r"(?P<number>[+-]?((((\d+(\.\d*)?)|(\d*\.\d+))([eE][+-]?\d+)?)|((?i:nan)|(inf))))\s*"
+ r"((?P<siPrefix>[u" + fn.SI_PREFIXES + r"]?)(?P<suffix>.*))?$"
)
class UnitfulSpinBox(SpinBox):
"""
Extension of PyQtGraph's SpinBox widget.
Adds:
* The "pinSiPrefix" option, where the siPrefix could be fixed to a
particular scale instead of as determined by its value.
* The "noUnitEditing" option, where the unit portion of the
SpinBox text, including the siPrefix, is fixed and uneditable.
"""
def __init__(self, parent=None, value=0.0, **kwargs):
super().__init__(parent, value, **kwargs)
self.lineEdit().cursorPositionChanged.connect(
self._editor_cursor_position_changed
)
def validate(self, strn, pos):
ret, strn, pos = super().validate(strn, pos)
if self.opts.get("noUnitEditing") is True:
suffix = self.opts["suffix"]
pinned_si_prefix = self.opts.get("pinSiPrefix")
suffix_edited = not strn.endswith(suffix)
pinned_si_prefix_edited = (
pinned_si_prefix is not None
and not strn.removesuffix(suffix).endswith(pinned_si_prefix)
)
if suffix_edited or pinned_si_prefix_edited:
ret = QValidator.State.Invalid
return ret, strn, pos
def _editor_cursor_position_changed(self, oldpos, newpos):
# Called on cursor position change
# Skips over the suffix and pinned SI prefix on cursor navigation if option
# noUnitEditing is enabled.
# Modified from the original Qt C++ source,
# QAbstractSpinBox::editorCursorPositionChanged.
# Their suffix is different than our suffix; there's no obvious way to set
# theirs here in the derived class since it is private.
if self.opts.get("noUnitEditing") is True:
edit = self.lineEdit()
if edit.hasSelectedText():
return # Allow for selecting units, for copy-and-paste
pinned_si_prefix = self.opts.get("pinSiPrefix") or ""
unit_len = len(pinned_si_prefix) + len(self.opts["suffix"])
text_len = len(edit.text())
pos = -1
# Cursor in unit
if text_len - unit_len < newpos < text_len:
if oldpos == text_len:
pos = text_len - unit_len
else:
pos = text_len
if pos != -1:
with QSignalBlocker(edit):
edit.setCursorPosition(pos)
def setOpts(self, **opts):
if "pinSiPrefix" in opts:
self.opts["pinSiPrefix"] = opts.pop("pinSiPrefix")
if "noUnitEditing" in opts:
self.opts["noUnitEditing"] = opts.pop("noUnitEditing")
super().setOpts(**opts)
def editingFinishedEvent(self):
# Modified from pyqtgraph.SpinBox.editingFinishedEvent source
new_text = self.lineEdit().text()
if new_text == self.lastText:
return
try:
val = self.interpret()
except Exception:
return
if val is False:
return
if val == self.val:
self.updateText() # still update text so that values are reformatted pretty-like
return
self.setValue(val, delaySignal=False) ## allow text update so that values are reformatted pretty-like
def formatText(self, prev=None):
"""
In addition to pyqtgraph.SpinBox's formatting, incorporate the
'pinSiPrefix' mechanism, where SI prefixes could be fixed.
"""
# Code modified from the PyQtGraph source
# get the number of decimal places to print
decimals = self.opts['decimals']
suffix = self.opts['suffix']
prefix = self.opts['prefix']
pin_si_prefix = self.opts.get("pinSiPrefix")
# format the string
val = self.value()
if self.opts['siPrefix'] is True:
# SI prefix was requested, so scale the value accordingly
if pin_si_prefix is not None and pin_si_prefix in fn.SI_PREFIX_EXPONENTS:
# fixed scale
s = 10**-fn.SI_PREFIX_EXPONENTS[pin_si_prefix]
p = pin_si_prefix
elif self.val == 0 and prev is not None:
# special case: if it's zero use the previous prefix
(s, p) = fn.siScale(prev)
else:
(s, p) = fn.siScale(val)
parts = {'value': val, 'suffix': suffix, 'decimals': decimals, 'siPrefix': p, 'scaledValue': s*val, 'prefix':prefix}
else:
# no SI prefix /suffix requested; scale is 1
parts = {'value': val, 'suffix': suffix, 'decimals': decimals, 'siPrefix': '', 'scaledValue': val, 'prefix':prefix}
parts['prefixGap'] = '' if parts['prefix'] == '' else ' '
parts['suffixGap'] = '' if (parts['suffix'] == '' and parts['siPrefix'] == '') else ' '
return self.opts['format'].format(**parts)
class UnitfulNumericParameterItem(NumericParameterItem):
"""
Subclasses PyQtGraph's `NumericParameterItem` and uses
UnitfulSpinBox for editing.
"""
def makeWidget(self):
opts = self.param.opts
t = opts['type']
defs = {
'value': 0, 'min': None, 'max': None,
'step': 1.0, 'dec': False,
'siPrefix': False, 'suffix': '', 'decimals': 3,
'pinSiPrefix': None, 'noUnitEditing': False,
}
if t == 'int':
defs['int'] = True
defs['minStep'] = 1.0
for k in defs:
if k in opts:
defs[k] = opts[k]
if 'limits' in opts:
defs['min'], defs['max'] = opts['limits']
w = UnitfulSpinBox()
w.setOpts(**defs)
w.sigChanged = w.sigValueChanged
w.sigChanging = w.sigValueChanging
return w
registerParameterItemType(
"float", UnitfulNumericParameterItem, SimpleParameter, override=True
)
registerParameterItemType(
"int", UnitfulNumericParameterItem, SimpleParameter, override=True
)

17
pytec/tec_qt.py
View File

@ -82,7 +82,7 @@ class MainWindow(QtWidgets.QMainWindow):
[["load"], partial(self.thermostat.load_cfg, ch)], [["load"], partial(self.thermostat.load_cfg, ch)],
[ [
["pid", "pid_autotune", "run_pid"], ["pid", "pid_autotune", "run_pid"],
partial(self.pid_auto_tune_request, ch), partial(self.pid_autotune_request, ch),
], ],
] ]
for ch in range(self.NUM_CHANNELS) for ch in range(self.NUM_CHANNELS)
@ -262,14 +262,11 @@ class MainWindow(QtWidgets.QMainWindow):
@asyncSlot(object, object) @asyncSlot(object, object)
async def send_command(self, param, changes): async def send_command(self, param, changes):
"""Translates parameter tree changes into thermostat set_param calls""" """Translates parameter tree changes into thermostat set_param calls"""
ch = param.channel ch = param.value()
for inner_param, change, data in changes: for inner_param, change, data in changes:
if change == "value": if change == "value":
if inner_param.opts.get("param", None) is not None: if inner_param.opts.get("param", None) is not None:
if inner_param.opts.get("suffix", None) == "mA":
data /= 1000 # Given in mA
thermostat_param = inner_param.opts["param"] thermostat_param = inner_param.opts["param"]
if thermostat_param[1] == "ch": if thermostat_param[1] == "ch":
thermostat_param[1] = ch thermostat_param[1] = ch
@ -283,10 +280,10 @@ class MainWindow(QtWidgets.QMainWindow):
param.child(*param.childPath(inner_param)).setOpts(lock=False) param.child(*param.childPath(inner_param)).setOpts(lock=False)
if inner_param.opts.get("pid_autotune", None) is not None: if inner_param.opts.get("pid_autotune", None) is not None:
auto_tuner_param = inner_param.opts["pid_autotune"][0] autotuner_param = inner_param.opts["pid_autotune"][0]
if inner_param.opts["pid_autotune"][1] != "ch": if inner_param.opts["pid_autotune"][1] != "ch":
ch = inner_param.opts["pid_autotune"][1] ch = inner_param.opts["pid_autotune"][1]
self.autotuners.set_params(auto_tuner_param, ch, data) self.autotuners.set_params(autotuner_param, ch, data)
if inner_param.opts.get("activaters", None) is not None: if inner_param.opts.get("activaters", None) is not None:
activater = inner_param.opts["activaters"][ activater = inner_param.opts["activaters"][
@ -296,9 +293,13 @@ class MainWindow(QtWidgets.QMainWindow):
if activater[1] == "ch": if activater[1] == "ch":
activater[1] = ch activater[1] = ch
await self.client.set_param(*activater) await self.client.set_param(*activater)
else:
await self.client.set_param(
"pwm", ch, "i_set", inner_param.child("i_set").value()
)
@asyncSlot() @asyncSlot()
async def pid_auto_tune_request(self, ch=0): async def pid_autotune_request(self, ch=0):
match self.autotuners.get_state(ch): match self.autotuners.get_state(ch):
case PIDAutotuneState.STATE_OFF | PIDAutotuneState.STATE_FAILED: case PIDAutotuneState.STATE_OFF | PIDAutotuneState.STATE_FAILED:
self.autotuners.load_params_and_set_ready(ch) self.autotuners.load_params_and_set_ready(ch)