move the detection of deleted properties to where the events are wired

csdr/chain/selector.py

@@ -1,7 +1,6 @@
 from csdr.chain import Chain
 from pycsdr.modules import Shift, FirDecimate, Bandpass, Squelch, FractionalDecimator, Writer
 from pycsdr.types import Format
-from owrx.property import PropertyDeleted
 import math
 
 
@@ -134,15 +133,11 @@ class Selector(Chain):
             scaled = [x / self.outputRate for x in self.bandpassCutoffs]
             self.bandpass.setBandpass(*scaled)
 
-    def setLowCut(self, lowCut: float) -> None:
-        if lowCut is PropertyDeleted:
-            lowCut = None
+    def setLowCut(self, lowCut: float | None) -> None:
         self.bandpassCutoffs[0] = lowCut
         self.setBandpass(*self.bandpassCutoffs)
 
-    def setHighCut(self, highCut: float) -> None:
-        if highCut is PropertyDeleted:
-            highCut = None
+    def setHighCut(self, highCut: float | None) -> None:
         self.bandpassCutoffs[1] = highCut
         self.setBandpass(*self.bandpassCutoffs)
 

owrx/dsp.py

@@ -1,5 +1,5 @@
 from owrx.source import SdrSourceEventClient, SdrSourceState, SdrClientClass
-from owrx.property import PropertyStack, PropertyLayer, PropertyValidator
+from owrx.property import PropertyStack, PropertyLayer, PropertyValidator, PropertyDeleted, PropertyDeletion
 from owrx.property.validators import OrValidator, RegexValidator, BoolValidator
 from owrx.modes import Modes, DigitalMode
 from csdr.chain import Chain
@@ -220,10 +220,10 @@ class ClientDemodulatorChain(Chain):
         else:
             self.selector.setSquelchLevel(self.squelchLevel)
 
-    def setLowCut(self, lowCut):
+    def setLowCut(self, lowCut: float | None):
         self.selector.setLowCut(lowCut)
 
-    def setHighCut(self, highCut):
+    def setHighCut(self, highCut: float | None):
         self.selector.setHighCut(highCut)
 
     def setBandpass(self, lowCut, highCut):
@@ -485,8 +485,8 @@ class DspManager(SdrSourceEventClient, ClientDemodulatorSecondaryDspEventClient)
             self.props.wireProperty("offset_freq", self.chain.setFrequencyOffset),
             self.props.wireProperty("center_freq", self.chain.setCenterFrequency),
             self.props.wireProperty("squelch_level", self.chain.setSquelchLevel),
-            self.props.wireProperty("low_cut", self.chain.setLowCut),
-            self.props.wireProperty("high_cut", self.chain.setHighCut),
+            self.props.wireProperty("low_cut", self.setLowCut),
+            self.props.wireProperty("high_cut", self.setHighCut),
             self.props.wireProperty("mod", self.setDemodulator),
             self.props.wireProperty("dmr_filter", self.chain.setSlotFilter),
             self.props.wireProperty("wfm_deemphasis_tau", self.chain.setWfmDeemphasisTau),
@@ -648,6 +648,12 @@ class DspManager(SdrSourceEventClient, ClientDemodulatorSecondaryDspEventClient)
         self.chain.setSecondaryFftWriter(buffer)
         self.wireOutput("secondary_fft", buffer)
 
+    def setLowCut(self, lowCut: float | PropertyDeletion):
+        self.chain.setLowCut(None if lowCut is PropertyDeleted else lowCut)
+
+    def setHighCut(self, highCut: float | PropertyDeletion):
+        self.chain.setHighCut(None if highCut is PropertyDeleted else highCut)
+
     def start(self):
         if self.sdrSource.isAvailable():
             self.chain.setReader(self.sdrSource.getBuffer().getReader())