class FGNavRecord;
typedef SGSharedPtr<FGNavRecord> FGNavRecordPtr;
-class FGNavRadio : public SGSubsystem
+class FGNavRadio : public SGSubsystem, public SGPropertyChangeListener
{
FGMorse morse;
SGInterpTable *low_tbl;
SGInterpTable *high_tbl;
+ SGPropertyNode_ptr _radio_node;
SGPropertyNode_ptr lon_node;
SGPropertyNode_ptr lat_node;
SGPropertyNode_ptr alt_node;
SGPropertyNode_ptr gs_deflection_deg_node;
SGPropertyNode_ptr gs_deflection_norm_node;
SGPropertyNode_ptr gs_rate_of_climb_node;
+ SGPropertyNode_ptr gs_rate_of_climb_fpm_node;
SGPropertyNode_ptr gs_dist_node;
SGPropertyNode_ptr gs_inrange_node;
SGPropertyNode_ptr nav_id_node;
SGPropertyNode_ptr gps_to_flag_node;
SGPropertyNode_ptr gps_from_flag_node;
SGPropertyNode_ptr gps_has_gs_node;
+ SGPropertyNode_ptr gps_course_node;
+ SGPropertyNode_ptr gps_xtrack_error_nm_node;
+ SGPropertyNode_ptr _magvarNode;
+
+ // realism setting, are false courses and GS lobes enabled?
+ SGPropertyNode_ptr falseCoursesEnabledNode;
// internal (private) values
+ bool _operable; ///< is the unit serviceable, on, powered, etc
int play_count;
time_t last_time;
FGNavRecordPtr _navaid;
double last_x;
double last_loc_dist;
double last_xtrack_error;
+ double xrate_ms;
double _localizerWidth; // cached localizer width in degrees
string _name;
double _gsNeedleDeflection;
double _gsNeedleDeflectionNorm;
- // realism setting, are false courses and GS lobes enabled?
- bool _falseCoursesEnabled;
-
SGSharedPtr<SGSampleGroup> _sgr;
+ std::vector<SGPropertyNode_ptr> _tiedNodes;
bool updateWithPower(double aDt);
void clearOutputs();
+ FGNavRecord* findPrimaryNavaid(const SGGeod& aPos, double aFreqMHz);
+
+ /// accessor for tied, read-only 'operable' property
+ bool isOperable() const
+ { return _operable; }
+
/**
- * Compute the localizer width in degrees - see implementation for
- * more information on the relevant standards and formulae.
+ * Tied-properties helper, record nodes which are tied for easy un-tie-ing
*/
- double localizerWidth(FGNavRecord* aLOC);
- FGNavRecord* findPrimaryNavaid(const SGGeod& aPos, double aFreqMHz);
+ template <typename T>
+ void tie(const char* aRelPath, const SGRawValue<T>& aRawValue)
+ {
+ SGPropertyNode_ptr nd = _radio_node->getNode(aRelPath, true);
+ _tiedNodes.push_back(nd);
+ nd->tie(aRawValue);
+ }
+
+ // implement SGPropertyChangeListener
+ virtual void valueChanged (SGPropertyNode * prop);
public:
FGNavRadio(SGPropertyNode *node);