JUNGFRAU: More user-friendly gain mode / gain setting parameters

See #19 (closed)

src/calng/conditions/JungfrauCondition.py

@@ -2,13 +2,23 @@ import operator
 
 from karabo.middlelayer import AccessMode, Assignment, String
 from .. import base_condition
+from ..corrections.JungfrauCorrection import GainModes, GainSettings
 
 
-def settings_to_gain_setting(setting):
+def gain_mode_translator(gain_mode_string):
+    if gain_mode_string in {"dynamic", "forceswitchg1", "forceswitchg2"}:
+        return GainModes.DYNAMIC_GAIN.name
+    elif gain_mode_string in {"fixg1", "fixg2"}:
+        return GainModes.FIXED_GAIN.name
+    else:
+        raise ValueError(f"Unknown gain mode {gain_mode_string}")
+
+
+def gain_setting_translator(setting):
     if setting == "gain0":
-        return "LOW_CDS"
+        return GainSettings.LOW_CDS.name
     elif setting == "highgain0":
-        return "HIGH_CDS"
+        return GainSettings.HIGH_CDS.name
     else:
         raise ValueError(f"Unknown gain setting {setting}")
 
@@ -32,7 +42,7 @@ class JungfrauCondition(base_condition.ConditionBase):
                     lambda n: n * 1e6,
                 ),
                 ("highVoltage", "biasVoltage", operator.itemgetter(0)),
-                ("settings", "gainSetting", settings_to_gain_setting),
-                ("gainMode", "gainMode", None),
+                ("settings", "gainSetting", gain_setting_translator),
+                ("gainMode", "gainMode", gain_mode_translator),
             ]
         }