Restore named JS/input configs (overrides)

Thanks to jano for pointing out I'd broken this feature!

src/Input/FGDeviceConfigurationMap.cxx

@@ -40,8 +40,17 @@
 using simgear::PropertyList;
 using std::string;
 
-FGDeviceConfigurationMap::FGDeviceConfigurationMap( const string& relative_path)
+FGDeviceConfigurationMap::FGDeviceConfigurationMap( const string& relative_path,
+                                                   SGPropertyNode* nodePath,
+                                                   const std::string& nodeName)
 {
+  // scan for over-ride configurations, loaded via joysticks.xml, etc
+  BOOST_FOREACH(SGPropertyNode_ptr preloaded, nodePath->getChildren(nodeName)) {
+    BOOST_FOREACH(SGPropertyNode* nameProp, preloaded->getChildren("name")) {
+      overrideDict[nameProp->getStringValue()] = preloaded;
+    } // of names iteration
+  } // of defined overrides iteration
+  
   scan_dir( SGPath(globals->get_fg_home(), relative_path));
   scan_dir( SGPath(globals->get_fg_root(), relative_path));
 }
@@ -53,6 +62,12 @@ FGDeviceConfigurationMap::~FGDeviceConfigurationMap()
 SGPropertyNode_ptr
 FGDeviceConfigurationMap::configurationForDeviceName(const std::string& name)
 {
+  NameNodeMap::iterator j = overrideDict.find(name);
+  if (j != overrideDict.end()) {
+    return j->second;
+  }
+  
+// no override, check out list of config files
   NamePathMap::iterator it = namePathMap.find(name);
   if (it == namePathMap.end()) {
     return SGPropertyNode_ptr();
@@ -71,6 +86,11 @@ FGDeviceConfigurationMap::configurationForDeviceName(const std::string& name)
 
 bool FGDeviceConfigurationMap::hasConfiguration(const std::string& name) const
 {
+  NameNodeMap::const_iterator j = overrideDict.find(name);
+  if (j != overrideDict.end()) {
+    return true;
+  }
+  
   return namePathMap.find(name) != namePathMap.end();
 }
 

src/Input/FGDeviceConfigurationMap.hxx

@@ -37,7 +37,9 @@
 class FGDeviceConfigurationMap
 {
 public:
-  FGDeviceConfigurationMap ( const std::string& relative_path);
+  FGDeviceConfigurationMap ( const std::string& relative_path,
+                            SGPropertyNode* nodePath,
+                            const std::string& nodeName);
   virtual ~FGDeviceConfigurationMap();
 
   SGPropertyNode_ptr configurationForDeviceName(const std::string& name);
@@ -49,6 +51,11 @@ private:
   void readCachedData(const SGPath& path);
   void refreshCacheForFile(const SGPath& path);
   
+  typedef std::map<std::string, SGPropertyNode_ptr> NameNodeMap;
+// dictionary of over-ridden configurations, where the config data
+// was explicitly loaded and shoudl be picked over a file search
+  NameNodeMap overrideDict;
+  
   typedef std::map<std::string, SGPath> NamePathMap;
 // mapping from joystick name to XML configuration file path
   NamePathMap namePathMap;

src/Input/FGEventInput.cxx

@@ -294,7 +294,7 @@ void FGInputDevice::SetName( string name )
 const char * FGEventInput::PROPERTY_ROOT = "/input/event";
 
 FGEventInput::FGEventInput() : 
-  configMap( "Input/Event")
+  configMap( "Input/Event", fgGetNode(PROPERTY_ROOT, true), "device-named")
 {
 }
 

src/Input/FGJoystickInput.cxx

@@ -106,7 +106,7 @@ void FGJoystickInput::init()
   SGPropertyNode_ptr js_nodes = fgGetNode("/input/joysticks", true);
   status_node = fgGetNode("/devices/status/joysticks", true);
 
-  FGDeviceConfigurationMap configMap("Input/Joysticks");
+  FGDeviceConfigurationMap configMap("Input/Joysticks",js_nodes, "js-named");
 
   for (int i = 0; i < MAX_JOYSTICKS; i++) {
     jsJoystick * js = new jsJoystick(i);