start building device forms

owrx/source/__init__.py

@@ -10,6 +10,9 @@ from abc import ABC, abstractmethod
 from owrx.command import CommandMapper
 from owrx.socket import getAvailablePort
 from owrx.property import PropertyStack, PropertyLayer
+from owrx.form import Input, TextInput, NumberInput
+from owrx.controllers.settings import Section
+from typing import List
 
 import logging
 
@@ -352,3 +355,33 @@ class SdrSource(ABC):
         self.busyState = state
         for c in self.clients:
             c.onBusyStateChange(state)
+
+
+class SdrDeviceDescriptionMissing(Exception):
+    pass
+
+
+class SdrDeviceDescription(object):
+    @staticmethod
+    def getByType(sdr_type: str) -> "SdrDeviceDescription":
+        try:
+            className = "".join(x for x in sdr_type.title() if x.isalnum()) + "DeviceDescription"
+            module = __import__("owrx.source.{0}".format(sdr_type), fromlist=[className])
+            cls = getattr(module, className)
+            return cls()
+        except (ModuleNotFoundError, AttributeError):
+            raise SdrDeviceDescriptionMissing("Device description for type {} not available".format(sdr_type))
+
+    def getInputs(self) -> List[Input]:
+        return [
+            TextInput("name", "Device name"),
+            NumberInput("ppm", "Frequency correction", append="ppm"),
+        ]
+
+    def mergeInputs(self, *args):
+        # build a dictionary indexed by the input id to make sure every id only exists once
+        inputs = {input.id: input for input_list in args for input in input_list}
+        return inputs.values()
+
+    def getSection(self):
+        return Section("Device settings", *self.getInputs())