Add AdvancedLinkSettings fact to the general app settings

This setting enables/disables the LinkIndicator toolbar in which the primary link can be chosen.

src/Settings/App.SettingsGroup.json

@@ -124,6 +124,13 @@
     "type":             "bool",
     "defaultValue":     false
 },
+{
+    "name":             "AdvancedLinkSettings",
+    "shortDescription": "Allow advanced link settings.",
+    "longDescription":  "Allow the user to pick the priority link and adding the high latency property to a link.",
+    "type":             "bool",
+    "defaultValue":     false
+},
 {
     "name":             "BaseDeviceFontPointSize",
     "shortDescription": "Application font size",

src/Settings/AppSettings.cc

@@ -34,6 +34,7 @@ const char* AppSettings::showLargeCompassName =                         "ShowLar
 const char* AppSettings::savePathName =                                 "SavePath";
 const char* AppSettings::autoLoadMissionsName =                         "AutoLoadMissions";
 const char* AppSettings::useChecklistName =                             "UseChecklist";
+const char* AppSettings::advancedLinkSettingsName =                     "AdvancedLinkSettings";
 const char* AppSettings::mapboxTokenName =                              "MapboxToken";
 const char* AppSettings::esriTokenName =                                "EsriToken";
 const char* AppSettings::defaultFirmwareTypeName =                      "DefaultFirmwareType";
@@ -367,6 +368,15 @@ Fact* AppSettings::autoLoadMissions(void)
     return _autoLoadMissionsFact;
 }
 
+Fact* AppSettings::advancedLinkSettings(void)
+{
+    if (!_advancedLinkSettingsFact) {
+        _advancedLinkSettingsFact = _createSettingsFact(advancedLinkSettingsName);
+    }
+
+    return _advancedLinkSettingsFact;
+}
+
 Fact* AppSettings::mapboxToken(void)
 {
     if (!_mapboxTokenFact) {

src/Settings/AppSettings.h

@@ -38,6 +38,7 @@ public:
     Q_PROPERTY(Fact* savePath                           READ savePath                           CONSTANT)
     Q_PROPERTY(Fact* autoLoadMissions                   READ autoLoadMissions                   CONSTANT)
     Q_PROPERTY(Fact* useChecklist                       READ useChecklist                       CONSTANT)
+    Q_PROPERTY(Fact* advancedLinkSettings               READ advancedLinkSettings               CONSTANT)
     Q_PROPERTY(Fact* mapboxToken                        READ mapboxToken                        CONSTANT)
     Q_PROPERTY(Fact* esriToken                          READ esriToken                          CONSTANT)
     Q_PROPERTY(Fact* defaultFirmwareType                READ defaultFirmwareType                CONSTANT)
@@ -77,6 +78,7 @@ public:
     Fact* savePath                          (void);
     Fact* autoLoadMissions                  (void);
     Fact* useChecklist                      (void);
+    Fact* advancedLinkSettings              (void);
     Fact* mapboxToken                       (void);
     Fact* esriToken                         (void);
     Fact* defaultFirmwareType               (void);
@@ -113,6 +115,7 @@ public:
     static const char* savePathName;
     static const char* autoLoadMissionsName;
     static const char* useChecklistName;
+    static const char* advancedLinkSettingsName;
     static const char* mapboxTokenName;
     static const char* esriTokenName;
     static const char* defaultFirmwareTypeName;
@@ -164,6 +167,7 @@ private:
     SettingsFact* _savePathFact;
     SettingsFact* _autoLoadMissionsFact;
     SettingsFact* _useChecklistFact;
+    SettingsFact* _advancedLinkSettingsFact;
     SettingsFact* _mapboxTokenFact;
     SettingsFact* _esriTokenFact;
     SettingsFact* _defaultFirmwareTypeFact;

src/ui/preferences/GeneralSettings.qml

@@ -378,6 +378,16 @@ QGCView {
                             property Fact _autoLoad: QGroundControl.settingsManager.appSettings.autoLoadMissions
                         }
 
+                        //-----------------------------------------------------------------
+                        //-- Advanced Link Settings
+                        FactCheckBox {
+                            text:       qsTr("Advanced Link Settings")
+                            fact:       _advancedLinkSettings
+                            visible:    _advancedLinkSettings.visible
+
+                            property Fact _advancedLinkSettings: QGroundControl.settingsManager.appSettings.advancedLinkSettings
+                        }
+
                         //-----------------------------------------------------------------
                         //-- Save path
                         RowLayout {

src/ui/toolbar/LinkIndicator.qml

@@ -32,6 +32,7 @@ Item {
         font.pointSize:         ScreenTools.mediumFontPointSize
         color:                  qgcPal.buttonText
         anchors.verticalCenter: parent.verticalCenter
+        visible:                QGroundControl.settingsManager.appSettings.advancedLinkSettings.rawValue
         Menu {
             id: linkSelectionMenu
         }