improved debug printout of VariableMapper

include/PropertyDescription.h

@@ -38,6 +38,10 @@ namespace ChimeraTK{
       virtual const std::type_info& type() const{
         return typeid(PropertyDescription);
       }
+      virtual void print(std::ostream & os = std::cout) const{
+        os << location << " / " << name
+           << std::endl;
+      }
     };
 
     // Combines property attributes and the base description
@@ -58,6 +62,10 @@ namespace ChimeraTK{
       virtual const std::type_info& type() const override{
         return typeid(AutoPropertyDescription);
       }
+      virtual void print(std::ostream & os = std::cout) const{
+        os << source << " -> " << location << " / " << name
+           << std::endl;
+      }
     };
 
     struct ArrayDescription: public AutoPropertyDescription{
@@ -106,6 +114,12 @@ namespace ChimeraTK{
       virtual const std::type_info& type() const{
         return typeid(SpectrumDescription);
       }
+      virtual void print(std::ostream & os = std::cout) const{
+        os << source << " -> " << location << " / " << name
+           << " (startSource = " << startSource 
+           << ", incrementSource = " << incrementSource <<")"
+           << std::endl;
+      }
     };
     
 //    struct SpectrumDescription:

src/VariableMapper.cc

@@ -342,14 +342,11 @@ namespace ChimeraTK{
 
   /// printing the map is useful for debugging
   void VariableMapper::print(std::ostream & os) const {
+    os << "====== VariableMapper =====" << std::endl;
     for (auto & description : _descriptions ){
-      // FIXME: commenting out the history already shows that there is something wrong
-      // each description needs << overloaded.
-      os << description->location << " / " << description->name
-        // << " hasHistory:" << propertyDescription.hasHistory
-        // << " isWriteable:" << propertyDescription.isWriteable
-         << std::endl;
+      description->print(os);
     }
+    os << "======= Mapping End =======" << std::endl;
   }
 
   bool VariableMapper::evaluateBool(std::string txt){

src/eq_create.cc

@@ -32,7 +32,7 @@ void eq_init_prolog() {
       std::cerr << "WARNIUNG: No XML file for the Doocs variable config found. Trying direct import." << std::endl;
       ChimeraTK::VariableMapper::getInstance().directImport(pvNames);
     }
-    std::cout << "here is the mapping:" << std::endl;
+    // print the mapping for debug purposes
     ChimeraTK::VariableMapper::getInstance().print();
     
     // activate the advanced archiver to have histories