change display precision behavior to reference Hertz

owrx/config/defaults.py

@@ -2,7 +2,7 @@ from owrx.property import PropertyLayer
 
 
 defaultConfig = PropertyLayer(
-    version=5,
+    version=6,
     max_clients=20,
     receiver_name="[Callsign]",
     receiver_location="Budapest, Hungary",
@@ -25,7 +25,7 @@ defaultConfig = PropertyLayer(
     waterfall_scheme="GoogleTurboWaterfall",
     waterfall_levels=PropertyLayer(min=-88, max=-20),
     waterfall_auto_level_margin=PropertyLayer(min=3, max=10, min_range=50),
-    frequency_display_precision=4,
+    tuning_precision=2,
     squelch_auto_margin=10,
     nmux_memory=50,
     google_maps_api_key="",

owrx/config/migration.py

@@ -89,13 +89,23 @@ class ConfigMigratorVersion4(ConfigMigrator):
         config["version"] = 5
 
 
+class ConfigMigratorVersion5(ConfigMigrator):
+    def migrate(self, config):
+        if "frequency_display_precision" in config:
+            # old config was always in relation to the display in MHz (1e6 Hz, hence the 6)
+            config["tuning_precision"] = 6 - config["frequency_display_precision"]
+            del config["frequency_display_precision"]
+        config["version"] = 6
+
+
 class Migrator(object):
-    currentVersion = 5
+    currentVersion = 6
     migrators = {
         1: ConfigMigratorVersion1(),
         2: ConfigMigratorVersion2(),
         3: ConfigMigratorVersion3(),
         4: ConfigMigratorVersion4(),
+        5: ConfigMigratorVersion5(),
     }
 
     @staticmethod