gui: fix spinbox bounds

artiq/gui/explorer.py

@@ -6,7 +6,7 @@ from pyqtgraph import LayoutWidget
 
 from artiq.protocols.sync_struct import Subscriber
 from artiq.protocols import pyon
-from artiq.gui.tools import DictSyncModel, force_spinbox_value
+from artiq.gui.tools import DictSyncModel
 from artiq.gui.scan import ScanController
 
 
@@ -79,8 +79,12 @@ class _NumberEntry(QtGui.QDoubleSpinBox):
             self.setSingleStep(procdesc["step"])
         if procdesc["min"] is not None:
             self.setMinimum(procdesc["min"])
+        else:
+            self.setMinimum(float("-inf"))
         if procdesc["max"] is not None:
             self.setMaximum(procdesc["max"])
+        else:
+            self.setMaximum(float("inf"))
         if procdesc["unit"]:
             self.setSuffix(" " + procdesc["unit"])
         if "default" in procdesc:
@@ -90,7 +94,7 @@ class _NumberEntry(QtGui.QDoubleSpinBox):
         return self.value()
 
     def set_argument_value(self, value):
-        force_spinbox_value(self, value)
+        self.setValue(value)
 
 
 class _StringEntry(QtGui.QLineEdit):

artiq/gui/scan.py

@@ -1,8 +1,6 @@
 from quamash import QtGui
 from pyqtgraph import LayoutWidget
 
-from artiq.gui.tools import force_spinbox_value
-
 
 class _Range(LayoutWidget):
     def __init__(self, global_min, global_max, global_step, unit, ndecimals):
@@ -12,8 +10,12 @@ class _Range(LayoutWidget):
             spinbox.setDecimals(ndecimals)
             if global_min is not None:
                 spinbox.setMinimum(global_min)
+            else:
+                spinbox.setMinimum(float("-inf"))
             if global_max is not None:
                 spinbox.setMaximum(global_max)
+            else:
+                spinbox.setMaximum(float("inf"))
             if global_step is not None:
                 spinbox.setSingleStep(global_step)
             if unit:
@@ -36,9 +38,9 @@ class _Range(LayoutWidget):
         self.addWidget(self.npoints, 0, 5)
 
     def set_values(self, min, max, npoints):
-        force_spinbox_value(self.min, min)
-        force_spinbox_value(self.max, max)
-        force_spinbox_value(self.npoints, npoints)
+        self.min.setValue(min)
+        self.max.setValue(max)
+        self.npoints.setValue(npoints)
 
     def get_values(self):
         min = self.min.value()
@@ -68,8 +70,12 @@ class ScanController(LayoutWidget):
         self.v_noscan.setDecimals(ndecimals)
         if gmin is not None:
             self.v_noscan.setMinimum(gmin)
+        else:
+            self.v_noscan.setMinimum(float("-inf"))
         if gmax is not None:
             self.v_noscan.setMaximum(gmax)
+        else:
+            self.v_noscan.setMaximum(float("inf"))
         if gstep is not None:
             self.v_noscan.setSingleStep(gstep)
         if unit:
@@ -135,7 +141,7 @@ class ScanController(LayoutWidget):
     def set_argument_value(self, d):
         if d["ty"] == "NoScan":
             self.noscan.setChecked(True)
-            force_spinbox_value(self.v_noscan, d["value"])
+            self.v_noscan.setValue(d["value"])
         elif d["ty"] == "LinearScan":
             self.linear.setChecked(True)
             self.v_linear.set_values(d["min"], d["max"], d["npoints"])

artiq/gui/tools.py

@@ -37,14 +37,6 @@ def short_format(v):
         return r
 
 
-def force_spinbox_value(spinbox, value):
-    if spinbox.minimum() > value:
-        spinbox.setMinimum(value)
-    if spinbox.maximum() < value:
-        spinbox.setMaximum(value)
-    spinbox.setValue(value)
-
-
 class _SyncSubstruct:
     def __init__(self, update_cb, ref):
         self.update_cb = update_cb