allow frequency display precision to be set via configuration

config_webrx.py

@@ -269,6 +269,10 @@ waterfall_auto_level_margin = {"min": 3, "max": 10, "min_range": 50}
 #        \_waterfall_auto_level_margin["min"]_/ |__ current_min_power_level          | \_waterfall_auto_level_margin["max"]_/
 #                                                          current_max_power_level __|
 
+# This setting allows you to modify the precision of the frequency displays in OpenWebRX.
+# Set this to the number of digits you would like to see:
+frequency_display_precision = 5
+
 # This setting tells the auto-squelch the offset to add to the current signal level to use as the new squelch level.
 # Lowering this setting will give you a more sensitive squelch, but it may also cause unwanted squelch openings when
 # using the auto squelch.

htdocs/lib/DemodulatorPanel.js

@@ -11,6 +11,8 @@ function DemodulatorPanel(el) {
         self.getDemodulator().set_offset_frequency(freq - self.center_freq);
     });
 
+    this.mouseFrequencyDisplay = el.find('.webrx-mouse-freq').frequencyDisplay();
+
     Modes.registerModePanel(this);
     el.on('click', '.openwebrx-demodulator-button', function() {
         var modulation = $(this).data('modulation');
@@ -332,6 +334,15 @@ DemodulatorPanel.prototype.getSquelchMargin = function() {
     return this.squelchMargin;
 };
 
+DemodulatorPanel.prototype.setMouseFrequency = function(freq) {
+    this.mouseFrequencyDisplay.setFrequency(freq);
+};
+
+DemodulatorPanel.prototype.setFrequencyPrecision = function(precision) {
+    this.tuneableFrequencyDisplay.setFrequencyPrecision(precision);
+    this.mouseFrequencyDisplay.setFrequencyPrecision(precision);
+};
+
 $.fn.demodulatorPanel = function(){
     if (!this.data('panel')) {
         this.data('panel', new DemodulatorPanel(this));

htdocs/lib/FrequencyDisplay.js

@@ -1,6 +1,7 @@
 function FrequencyDisplay(element) {
     this.element = $(element);
     this.digits = [];
+    this.precision = 4;
     this.setupElements();
     this.setFrequency(0);
 }
@@ -14,7 +15,10 @@ FrequencyDisplay.prototype.setupElements = function() {
 
 FrequencyDisplay.prototype.setFrequency = function(freq) {
     this.frequency = freq;
-    var formatted = (freq / 1e6).toLocaleString(undefined, {maximumFractionDigits: 4, minimumFractionDigits: 4});
+    var formatted = (freq / 1e6).toLocaleString(
+        undefined,
+        {maximumFractionDigits: this.precision, minimumFractionDigits: this.precision}
+    );
     var children = this.digitContainer.children();
     for (var i = 0; i < formatted.length; i++) {
         if (!this.digits[i]) {
@@ -34,6 +38,12 @@ FrequencyDisplay.prototype.setFrequency = function(freq) {
     }
 };
 
+FrequencyDisplay.prototype.setFrequencyPrecision = function(precision) {
+    if (!precision) return;
+    this.precision = precision;
+    this.setFrequency(this.frequency);
+};
+
 function TuneableFrequencyDisplay(element) {
     FrequencyDisplay.call(this, element);
     this.setupEvents();

htdocs/openwebrx.js

@@ -292,7 +292,7 @@ function scale_canvas_mousemove(evt) {
 
 function frequency_container_mousemove(evt) {
     var frequency = center_freq + scale_offset_freq_from_px(evt.pageX);
-    $('.webrx-mouse-freq').frequencyDisplay().setFrequency(frequency);
+    $('#openwebrx-panel-receiver').demodulatorPanel().setMouseFrequency(frequency);
 }
 
 function scale_canvas_end_drag(x) {
@@ -570,7 +570,7 @@ function canvas_mousemove(evt) {
             bookmarks.position();
         }
     } else {
-        $('.webrx-mouse-freq').frequencyDisplay().setFrequency(canvas_get_frequency(relativeX));
+        $('#openwebrx-panel-receiver').demodulatorPanel().setMouseFrequency(canvas_get_frequency(relativeX));
     }
 }
 
@@ -734,6 +734,8 @@ function on_ws_recv(evt) {
                         currentprofile = config['sdr_id'] + '|' + config['profile_id'];
                         $('#openwebrx-sdr-profiles-listbox').val(currentprofile);
 
+                        $('#openwebrx-panel-receiver').demodulatorPanel().setFrequencyPrecision(config['frequency_display_precision']);
+
                         break;
                     case "secondary_config":
                         var s = json['value'];
@@ -1241,7 +1243,6 @@ function openwebrx_init() {
     secondary_demod_init();
     digimodes_init();
     initPanels();
-    $('.webrx-mouse-freq').frequencyDisplay();
     $('#openwebrx-panel-receiver').demodulatorPanel();
     window.addEventListener("resize", openwebrx_resize);
     bookmarks = new BookmarkBar();

owrx/connection.py

@@ -124,6 +124,7 @@ class OpenWebRxReceiverClient(OpenWebRxClient, SdrSourceEventClient):
         "initial_squelch_level",
         "profile_id",
         "squelch_auto_margin",
+        "frequency_display_precision",
     ]
 
     def __init__(self, conn):