X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=kernel%2Fsrc%2FbbtkFactory.cxx;h=c024617d59d01416250563110db678ffe8f2855b;hb=4ad5b5ee44357ad873bc8c43230defb6d0a79879;hp=5095c0e81b452368b4aca8f68f53464aa4cf40cc;hpb=cbdd914a561bf6241a5b56d66873e090db933f8b;p=bbtk.git

diff --git a/kernel/src/bbtkFactory.cxx b/kernel/src/bbtkFactory.cxx
index 5095c0e..c024617 100644
--- a/kernel/src/bbtkFactory.cxx
+++ b/kernel/src/bbtkFactory.cxx
@@ -4,8 +4,8 @@ Program:   bbtk
 Module:    $RCSfile: bbtkFactory.cxx,v $
 Language:  C++
 
-Date:      $Date: 2008/02/14 13:44:25 $
-Version:   $Revision: 1.21 $
+Date:      $Date: 2008/04/18 12:59:15 $
+Version:   $Revision: 1.33 $
                                                                                 
 
 Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
@@ -37,30 +37,23 @@ PURPOSE.  See the above copyright notices for more information.
 
 #include <cctype>    // std::toupper
 
-// was in gdcm ...
-/*
-#ifdef _MSC_VER
-#   define getcwd _getcwd
-#endif
-
-#if defined(_MSC_VER) || defined(__BORLANDC__)
-#   include <direct.h>
-#else
-#   include <unistd.h>
-#endif
-
-*/
-
 
 namespace bbtk
 {
-  typedef Package* (*PackageAccessor)();
-  typedef void (*PackageDeleteFunction)();
 
+  //===================================================================
+  /// Default ctor
+  Factory::Pointer Factory::New()
+  {
+    bbtkDebugMessage("Kernel",9,"Factory::New()"<<std::endl);
+    return MakePointer(new Factory());
+  }
+  //===================================================================
 
   //===================================================================
   /// Default ctor
   Factory::Factory()
+    : mExecuter()
   {
     bbtkDebugMessage("Kernel",7,"Factory::Factory()"<<std::endl);
   }
@@ -77,18 +70,6 @@ namespace bbtk
   //===================================================================
 
 
-  //===================================================================
-  void Factory::CloseAllPackages()
-  {
-    bbtkDebugMessageInc("Kernel",7,"Factory::CloseAllPackages()"<<std::endl);
-    while (mPackageMap.begin() != mPackageMap.end())
-      {
-        PackageMapType::iterator i = mPackageMap.begin();
-        ClosePackage(i);
-      }
-    bbtkDebugDecTab("Kernel",7);
-  }
-  //===================================================================
 
   //===================================================================
   void Factory::Reset()
@@ -106,143 +87,26 @@ namespace bbtk
                               std::string path)
   {
     
-#if defined(__GNUC__)
-    
-    void *handler;
-    handler = dlopen(libname.c_str(),
-		     BBTK_RTLD_TIME | BBTK_RTLD_SCOPE );
-    if (!handler)
-      {
-        // The following is *NOT* a debug time message :
-        // It's a user intended message.
-        // Please don't remove it.
-	bbtkError("Could not open shared library [" <<libname<<"] : "
-		  <<dlerror() << std::endl);
-	
-	return false; // try next path
-      }
-    
-    // The following is *NOT* a debug time message :
-    // It's a user intended message.
-    // Please don't remove it.
-    bbtkMessage("Output",2,"   -->[" <<libname<<"] found" << std::endl);
-    
-    // Loads the Package accessor
-    
-    std::string getpackname(pkgname);
-    getpackname += "GetPackage";
-    void *getpack = dlsym(handler, getpackname.c_str());
-    if (!getpack)
-      {
-	dlclose(handler);
-	bbtkError("Shared library ["<<libname<<"] is not a valid bbtk package."
-		  <<" Symbol ["<<getpackname<<"] :"<<dlerror());
-      }
-    
-    // Verifies that the Package delete function is present
-    std::string delfname(pkgname);
-    delfname += "DeletePackage";
-    void *delf = dlsym(handler, delfname.c_str());
-    if (!delf)
-      {
-	dlclose(handler);
-	bbtkError("Shared library ["<<libname<<"] is not a valid bbtk package."
-		  <<" Symbol ["<<delfname<<"] :"<<dlerror());
-      }
-    
-#elif defined(_WIN32)
-    
-    HINSTANCE handler;
-    
-    SetErrorMode(0);
-    handler = LoadLibrary(libname.c_str());
-    if (!handler)
-      {
-	// The following is *NOT* a debug time message :
-	// It's a user intended message.
-	// Please don't remove it.
-	bbtkError("Error loading library [" <<libname<<"]" << std::endl);
-	return false;// Problem with the found library
-      }
-    
-    bbtkMessage("Output",2,"   --->[" <<libname<<"] found" << std::endl);
-    
-    // Loads the Package accessor
-    
-    std::string getpackname(pkgname);
-    getpackname += "GetPackage";
-    void *getpack = GetProcAddress(handler, getpackname.c_str());
-    if (!getpack)
-      {
-	FreeLibrary(handler);
-	bbtkError("[1] Could not load package \""<<pkgname
-		  <<"\" : "<<getpackname<<" symbol not found (is it a bbtk package lib ?)");
-	// look how to get the error message on win
-	//<<dlerror());
-      }
-    // Verifies that the Package delete function is present
-    std::string delfname(pkgname);
-    delfname += "DeletePackage";
-    void *delf = GetProcAddress(handler, delfname.c_str());
-    if (!delf)
-      {
-	FreeLibrary(handler);
-	bbtkError("[2] Could not load package \""<<pkgname
-		  <<"\" : "<<delfname<<" symbol not found (is it a bbtk package lib ?)");
-	// look how to get the error message on win
-	//<<dlerror());
-      }
-#else
-    bbtkError("neither __GNUC__ nor _WIN32 ?!? How did you compile ?");
-#endif
-    
-    // Stores the package
-    PackageInfoType pack;
-    pack.mDynamicLibraryHandler = handler;
-    // Invokes the accessor to the PackageUnit pointer
-    pack.mPackage = ((PackageAccessor)getpack)();
-    
-    mPackageMap[pkgname] = pack;
-    
-    // Test bbtk build version ok
-    if ( pack.mPackage->GetBBTKVersion() != bbtk::GetVersion() )
+    Package::Pointer p = Package::CreateFromDynamicLibrary(libname,
+							   pkgname,
+							   path);
+    if (p!=0)
       {
-	std::string v(pack.mPackage->GetBBTKVersion());
-	UnLoadPackage(pkgname);
-	bbtkError("Cannot load package ["<<libname<<"]. "
-		  <<"Package build with bbtk version "
-		  << v
-		  << " whereas application build with version "
-		  << bbtk::GetVersion());
+	//===================================================================
+	bbtkMessage("Output",2,p->GetName()<<" "
+		    <<p->GetVersion()
+		    <<" "
+		    <<p->GetAuthor() << " Category(s) :"
+		    <<p->GetCategory()
+		    <<std::endl);
+	bbtkMessage("Output",2,p->GetDescription()<<std::endl);
+	//===================================================================
+	p->AddFactory(GetThisPointer<Factory>());
+	mPackageMap[pkgname] = p;
+	return true;
       }
+    return false;
     
-    std::string separator =
-      ConfigurationFile::GetInstance().Get_file_separator ();
-    //BBTK_STRINGIFY_SYMBOL(BBTK_DOC_REL_PATH)
-    std::string docreldoc = 
-      separator + "bbdoc" + separator + pkgname + separator + "index.html";
-    std::string reldoc = 
-      ".." + separator + ".." + docreldoc;
-    std::string doc = path + separator + ".." + separator
-      + BBTK_STRINGIFY_SYMBOL(BBTK_DOC_REL_PATH)
-      + docreldoc;
-    
-    pack.mPackage->SetDocURL(doc);
-    pack.mPackage->SetDocRelativeURL(reldoc);
-    
-    //===================================================================
-    bbtkMessage("Output",2,pack.mPackage->GetName()<<" "
-		<<pack.mPackage->GetVersion()
-		<<" (bbtk "
-		<<pack.mPackage->GetBBTKVersion()<<") "
-		<<pack.mPackage->GetAuthor() << " Category(s) :"
-		<<pack.mPackage->GetCategory()
-		<<std::endl);
-    bbtkMessage("Output",2,pack.mPackage->GetDescription()<<std::endl);
-    //===================================================================
-    
-    bbtkDebugDecTab("Kernel",7);
-    return true;
   }
   
   //===================================================================
@@ -261,8 +125,7 @@ namespace bbtk
   
 
   
-  void Factory::LoadPackage( const std::string& name,
-                             bool use_configuration_file)
+  void Factory::LoadPackage( const std::string& name )
   {
   // Note : in the following :
   // name : the user supplied name
@@ -275,8 +138,6 @@ namespace bbtk
 
     bbtkDebugMessageInc("Kernel",7,"Factory::LoadPackage(\""<<name<<"\")"<<std::endl);
     bbtkMessage("Debug",1,"Factory::LoadPackage(\""<<name<<"\")"<<std::endl);
-    bbtkMessage("Debug",1,"use_configuration_file ["
-                 << use_configuration_file << "]" << std::endl);
 
     std::vector<std::string> package_paths;
     std::string libname;  // full path library name
@@ -445,73 +306,51 @@ namespace bbtk
   //===================================================================
 
 
+  //===================================================================
+  void Factory::CloseAllPackages()
+  {
+    bbtkDebugMessageInc("Kernel",7,"Factory::CloseAllPackages()"<<std::endl);
+    while (mPackageMap.begin() != mPackageMap.end())
+      {
+        PackageMapType::iterator i = mPackageMap.begin();
+        ClosePackage(i);
+      }
+    bbtkDebugDecTab("Kernel",7);
+  }
+  //===================================================================
+
   //===================================================================
   /// \brief Close the package referenced by the iterator 
-  ///
-  /// If it is a dynamically loaded package 
-  /// - Loads and calls the function "<name>DeletePackage" of the dynamic library (responsible for package desallocation)
-  /// - Closes the dynamic library
-  /// - Erases the package entry in the packages map
-  ///
-  /// Else simply erases the package entry in the packages map
-  void Factory::ClosePackage(PackageMapType::iterator& i) 
+ ///
+ /// First removes the factory from the set of factories which use the package
+ /// If the set is empty then :
+ /// If it is a dynamically loaded package :
+ /// - Loads and calls the function "<name>DeletePackage" of the dynamic library (responsible for package desallocation)
+ /// - Closes the dynamic library
+ /// Else :
+ /// - deletes the package normally
+ /// 
+ /// Finally erases the package entry in the packages map
+ void Factory::ClosePackage(PackageMapType::iterator& i) 
   {   
      bbtkDebugMessageInc("Kernel",7,"Factory::ClosePackage(\""
-                         <<i->second.mPackage->GetName()
+                         <<i->second->GetName()
                         <<"\")"<<std::endl);
 
-     if (i->second.mDynamicLibraryHandler) 
-     {
- 
-      // If it is a dynamically loaded package
-      // Loads the Package delete function
-
-        std::string delfname(i->second.mPackage->GetName());
-        delfname += "DeletePackage";
-#if defined(__GNUC__)     
-        void *delf = dlsym(i->second.mDynamicLibraryHandler, delfname.c_str());
-        if (!delf)
-        {
-           bbtkError("could not close package \""
-                     <<i->second.mPackage->GetName()
-                     <<"\" :"<<dlerror());
-        }    
-#elif defined(_WIN32)
-   void *delf = GetProcAddress(i->second.mDynamicLibraryHandler, 
-                                 delfname.c_str());
-     if (!delf)
-     {  
-       bbtkError("could not close package \""
-                <<i->second.mPackage->GetName()
-                <<"\" : "<<delfname
-                <<" symbol not found (how did you open it ???");
-               //<<"\" :"<<dlerror());
-     }    
-#endif     
-
-   // deletes the package
-   ((PackageDeleteFunction)delf)();
-
-   // closes the dl handler
-#if defined(__GNUC__)  
-    dlclose(i->second.mDynamicLibraryHandler);  
-#elif defined(_WIN32)
+     
+     // Removes this from the set of factories which use the package
+     i->second->RemoveFactory(GetThisPointer<Factory>());
+     Package::WeakPointer p = i->second;
+     // remove the entry in the map
+     mPackageMap.erase(i);
+     // Release the package if not already destroyed
+     if (p.lock()) Package::Release(p);
 
-    FreeLibrary(i->second.mDynamicLibraryHandler);
-#endif
-    }
-    else 
-    {  
-       // If it is a manually inserted package 
-       delete i->second.mPackage;
-    }
 
-    // remove the entry in the map
-    mPackageMap.erase(i);
-    bbtkDebugDecTab("Kernel",7);
- }
+     bbtkDebugDecTab("Kernel",7);
+  }
   //===================================================================
-
+  
 
 
   //===================================================================  
@@ -525,7 +364,7 @@ namespace bbtk
     {
       bbtkMessage("Help",1, i->first << std::endl);
       if (details) {
-         i->second.mPackage->PrintBlackBoxes(false,adaptors);
+         i->second->PrintBlackBoxes(false,adaptors);
       }
     }
 
@@ -545,22 +384,22 @@ namespace bbtk
       {
       bbtkMessage("Help",1, "Package "<<i->first<<" ");
       
-      if (i->second.mPackage->GetVersion().length()>0)
-        bbtkMessageCont("Help",1,"v" <<i->second.mPackage->GetVersion());
+      if (i->second->GetVersion().length()>0)
+        bbtkMessageCont("Help",1,"v" <<i->second->GetVersion());
         
-      if (i->second.mPackage->GetAuthor().length()>0)
-        bbtkMessageCont("Help",1,"- "<<i->second.mPackage->GetAuthor());
+      if (i->second->GetAuthor().length()>0)
+        bbtkMessageCont("Help",1,"- "<<i->second->GetAuthor());
         
-      if (i->second.mPackage->GetCategory().length()>0)
-        bbtkMessageCont("Help",1,"- "<<i->second.mPackage->GetCategory());        
+      if (i->second->GetCategory().length()>0)
+        bbtkMessageCont("Help",1,"- "<<i->second->GetCategory());        
         
       bbtkMessageCont("Help",1,std::endl);
       bbtkIncTab("Help",1);
-      bbtkMessage("Help",1,i->second.mPackage->GetDescription()<<std::endl);
-      if (i->second.mPackage->GetNumberOfBlackBoxes()>0) 
+      bbtkMessage("Help",1,i->second->GetDescription()<<std::endl);
+      if (i->second->GetNumberOfBlackBoxes()>0) 
         {
           bbtkMessage("Help",1, "Black boxes : "<<std::endl);
-          i->second.mPackage->PrintBlackBoxes(true,adaptors);
+          i->second->PrintBlackBoxes(true,adaptors);
         }
       else 
         {
@@ -592,10 +431,10 @@ namespace bbtk
     PackageMapType::const_iterator i;
     for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
       {
-      if (i->second.mPackage->ContainsBlackBox(name)) 
+      if (i->second->ContainsBlackBox(name)) 
         {
-          i->second.mPackage->HelpBlackBox(name,full);
-	      package = i->second.mPackage->GetName();
+          i->second->HelpBlackBox(name,full);
+	      package = i->second->GetName();
           found = true;
         }
       }
@@ -612,24 +451,25 @@ namespace bbtk
 
   //=================================================================== 
   /// Inserts a package in the factory
-  void Factory::InsertPackage( Package* p )
+  void Factory::InsertPackage( Package::Pointer p )
   {
     bbtkDebugMessageInc("Kernel",9,"Factory::InsertPackage(\""<<
                         p->GetName()<<"\")"<<std::endl);
 
-    PackageInfoType pack;
-    pack.mDynamicLibraryHandler = 0;
-    
-    pack.mPackage = p;
+    std::cout << p.use_count() <<std::endl;
+
+    p->AddFactory(GetThisPointer<Factory>());
+    mPackageMap[p->GetName()] = p;
+
+    std::cout << p.use_count() <<std::endl;
 
-    mPackageMap[p->GetName()] = pack;
     bbtkDebugDecTab("Kernel",9);
   }
   //===================================================================
   
   //=================================================================== 
   /// Removes a package from the factory (and deletes it)
-  void Factory::RemovePackage( Package* p )
+  void Factory::RemovePackage( Package::Pointer p )
   {
     bbtkDebugMessageInc("Kernel",9,"Factory::RemovePackage(\""<<
                         p->GetName()<<"\")"<<std::endl);
@@ -637,17 +477,17 @@ namespace bbtk
     PackageMapType::iterator i;
     for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
       {
-         if (i->second.mPackage == p) break;
+         if (i->second == p) break;
       };
     
     if (i!=mPackageMap.end())
       {
-      ClosePackage(i);
+	ClosePackage(i);
       }
     else 
       {
-      bbtkError("Factory::RemovePackage(\""<<
-                 p->GetName()<<"\") : package absent from factory");
+	bbtkError("Factory::RemovePackage(\""<<
+		  p->GetName()<<"\") : package absent from factory");
       }
 
     bbtkDebugDecTab("Kernel",9);
@@ -657,17 +497,17 @@ namespace bbtk
 
   //===================================================================
   /// Creates an instance of a black box of type <type> with name <name>
-  BlackBox* Factory::NewBlackBox(const std::string& type, 
+  BlackBox::Pointer Factory::NewBlackBox(const std::string& type, 
                                  const std::string& name) const
   {
     bbtkDebugMessageInc("Kernel",7,"Factory::NewBlackBox(\""
                         <<type<<"\",\""<<name<<"\")"<<std::endl);
 
-    BlackBox* b = 0; 
+    BlackBox::Pointer b; 
     PackageMapType::const_iterator i;
     for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
       {
-      b = i->second.mPackage->NewBlackBox(type,name);
+      b = i->second->NewBlackBox(type,name);
       if (b) break; 
       }
     if (!b) 
@@ -682,29 +522,27 @@ namespace bbtk
 
   //===================================================================
   /// Creates an instance of a black box of type <type> with name <name>
-  BlackBox* Factory::NewAdaptor(TypeInfo typein,
-                     TypeInfo typeout,
-                     const std::string& name) const
+  BlackBox::Pointer Factory::NewAdaptor(const DataInfo& typein,
+				const DataInfo& typeout,
+				const std::string& name) const
   {
-    bbtkDebugMessageInc("Kernel",8,"Factory::NewAdaptor(<"
-                        <<TypeName(typein)<<">,<"
-                        <<TypeName(typeout)<<">,\""
+    bbtkDebugMessageInc("Kernel",8,"Factory::NewAdaptor("
+                        <<typein<<","
+                        <<typeout<<",\""
                         <<name<<"\")"<<bbtkendl);
 
 
-    BlackBox* b = 0; 
+    BlackBox::Pointer b; 
     PackageMapType::const_iterator i;
     for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
       {
-      b = i->second.mPackage->NewAdaptor(typein,typeout,name);
+      b = i->second->NewAdaptor(typein,typeout,name);
       if (b) break; 
       }
     if (!b) 
       {
-      bbtkError("no <"
-          <<TypeName(typein)<<"> to <"
-          <<TypeName(typeout)
-          <<"> adaptor available");
+	bbtkError("no "<<typein<<" to "<<typeout
+		  <<" adaptor available");
       } 
     
     bbtkDebugDecTab("Kernel",7);
@@ -712,72 +550,186 @@ namespace bbtk
   }
   //===================================================================
 
+
   //===================================================================
-  /// Creates an instance of a connection
-  Connection* Factory::NewConnection(BlackBox* from,
-                                     const std::string& output,
-                                     BlackBox* to,
-                                     const std::string& input) const
+  /// Creates an instance of a black box of type <type> with name <name>
+  BlackBox::Pointer Factory::NewWidgetAdaptor(const DataInfo& typein,
+				      const DataInfo& typeout,
+				      const std::string& name) const
   {
-    bbtkDebugMessage("Kernel",7,"Factory::NewConnection(\""
-                      <<from->bbGetName()<<"\",\""<<output<<"\",\""
-                      <<to->bbGetName()<<"\",\""<<input
-                      <<"\")"<<std::endl);
+    bbtkDebugMessageInc("Kernel",8,"Factory::NewWidgetAdaptor(<"
+                        <<typein<<">,<"
+                        <<typeout<<">,\""
+                        <<name<<"\")"<<bbtkendl);
+
+
+    BlackBox::Pointer b; 
+    PackageMapType::const_iterator i;
+    for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
+      {
+	b = i->second->NewWidgetAdaptor(typein,
+						 typeout,
+						 name);
+      if (b) break; 
+      }
+    if (!b) 
+      {
+	bbtkError("no "<<typein<<" to "<<typeout
+		  <<"> widget adaptor available");
+      } 
     
-    return new Connection(from,output,to,input);
-    /*  
-       Connection* c;
-    // !!! WARNING : WE NEED TO TEST THE TYPE NAME EQUALITY 
-    // BECAUSE IN DIFFERENT DYN LIBS THE type_info EQUALITY CAN 
-    // BE FALSE (DIFFERENT INSTANCES !)
-  
-    std::string t1 ( from->bbGetOutputType(output).name() );
-    std::string t2 ( to->bbGetInputType(input).name() );
+    bbtkDebugDecTab("Kernel",7);
+    return b; 
+  }
+  //===================================================================
 
+  //===================================================================
+  /// Creates an instance of a black box of type <type> with name <name>
+  bool Factory::FindAdaptor(const DataInfo& typein,
+				  const DataInfo& typeout,
+				  std::string& adaptor) const
+  {
+    bbtkDebugMessageInc("Kernel",8,"Factory::FindAdaptor(<"
+                        <<typein<<">,<"
+                        <<typeout<<">)"<<bbtkendl);
+    
+    bool b = false;
+    PackageMapType::const_iterator i;
+    for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
+      {
+	b = i->second->FindAdaptor(typein,
+					    typeout,
+					    adaptor);
+	if (b) break; 
+      }
+    /*
+    if (!b) 
+      {
+	bbtkError("no "<<typein<<" to "<<typeout
+		  <<"> widget adaptor available");
+      } 
+    */
 
-    if ( t1 == t2 ) 
-       //from->bbGetOutputType(output) ==
-       // to->bbGetInputType(input) )
+    bbtkDebugDecTab("Kernel",7);
+    return b; 
+  }
+  //===================================================================
+
+  //===================================================================
+  /// Creates an instance of a black box of type <type> with name <name>
+  bool Factory::FindWidgetAdaptor(const DataInfo& typein,
+				  const DataInfo& typeout,
+				  std::string& adaptor) const
+  {
+    bbtkDebugMessageInc("Kernel",8,"Factory::FindWidgetAdaptor(<"
+                        <<typein<<">,<"
+                        <<typeout<<">)"<<bbtkendl);
+    
+    bool b = false;
+    PackageMapType::const_iterator i;
+    for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
       {
-         c = new Connection(from,output,to,input);
+	b = i->second->FindWidgetAdaptor(typein,
+						  typeout,
+						  adaptor);
+	if (b) break; 
       }
-    else 
+    bbtkDebugDecTab("Kernel",7);
+    return b; 
+  }
+  //===================================================================
+
+  //===================================================================
+  /// Creates an instance of a black box of type <type> with name <name>
+  bool Factory::FindWidgetAdaptor2(const DataInfo& typein,
+				  const DataInfo& typeout,
+				  std::string& widget,
+				  std::string& adaptor) const
+  {
+    bbtkDebugMessageInc("Kernel",8,"Factory::FindWidgetAdaptor(<"
+                        <<typein<<">,<"
+                        <<typeout<<">)"<<bbtkendl);
+    
+    bool b = false;
+    adaptor = widget = "";
+    PackageMapType::const_iterator i;
+    for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
       {
-         //   std::cout << "Adaptive connection "<<std::endl;
-         std::string name;
-         name = from->bbGetName() + "." + output + "-" 
-                                  + to->bbGetName() + "." + input; 
-
-         BlackBox* b = 0; 
-         PackageMapType::const_iterator i;
-         for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
-         {
-             b = i->second.mPackage->NewAdaptor(from->bbGetOutputType(output),
-                                                  to->bbGetInputType(input),
-                                                  name);
-             if (b) break; 
-         } 
-         if (!b)  
-         {  
-            bbtkError("did not find any <"
-                       <<TypeName(from->bbGetOutputType(output))
-                       <<"> to <"
-                       <<TypeName(to->bbGetInputType(input))
-                       <<"> adaptor");
-         } 
-         c = new AdaptiveConnection(from,output,to,input,b);
+	b = i->second->FindWidgetAdaptor(typein,
+						  typeout,
+						  widget);
+	if (b) break; 
       }
-      bbtkDebugDecTab("Kernel",7);
+    if (!b) 
+      {
+	// Look for a widget adaptor with good nature out
+	bbtkMessage("Kernel",5,
+		    "*** Looking for a two pieces widget adaptor for : "
+		    << typein << "->"<<typeout<<std::endl);
+	for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
+	  {
+	    Package::AdaptorMapType::const_iterator j;
+	    for (j=i->second->GetAdaptorMap().begin();
+		 j!=i->second->GetAdaptorMap().end();
+		 ++j)
+	      {
+		if ( ( j->first.mKind ==  
+		       BlackBoxDescriptor::DEFAULT_WIDGET_ADAPTOR) &&
+		     //(j->first.mTypeIn == typein) &&
+		     (j->first.mTypeOut.GetNature() == typeout.GetNature() ) 
+		     )
+		  {
+		    widget = j->second.lock()->GetTypeName();
+		    bbtkMessage("Kernel",5,
+				"===> Found first part : "<<widget
+				<< " "<<j->first.mTypeIn<<"->"
+				<<j->first.mTypeOut<<std::endl);
+		    DataInfo ti( j->first.mTypeOut.GetType(), "");
+		    DataInfo to( typeout.GetType(), "");
+		    b = FindAdaptor( ti, to, adaptor );
+		    if (b) 
+		      {
+			bbtkMessage("Kernel",5,
+				    "===> Found second part : "<<adaptor
+				    <<std::endl);
+			break;
+		      }
+		    else
+		      {
+			bbtkMessage("Kernel",5,
+				    "===> No second part found"<<std::endl);
+		      }
+		  }
+	      }
+	    if (b) break;
+	  }
+      }
+    bbtkDebugDecTab("Kernel",7);
+    return b; 
+  }
+  //===================================================================
+
+  //===================================================================
+  /// Creates an instance of a connection
+  Connection::Pointer Factory::NewConnection(BlackBox::Pointer from,
+					     const std::string& output,
+					     BlackBox::Pointer to,
+					     const std::string& input) const
+  {
+    bbtkDebugMessage("Kernel",7,"Factory::NewConnection(\""
+                      <<from->bbGetName()<<"\",\""<<output<<"\",\""
+                      <<to->bbGetName()<<"\",\""<<input
+                      <<"\")"<<std::endl);
     
-      return c;
-    */
+    return Connection::New(from,output,to,input,
+			   GetThisPointer<Factory>());
   }
   //===================================================================
 
 
 
   //===================================================================
-  const Package* Factory::GetPackage(const std::string& name) const
+  Package::Pointer Factory::GetPackage(const std::string& name) const
   {
     bbtkDebugMessageInc("Kernel",9,"Factory::GetPackage(\""<<name<<"\")"
                          <<std::endl);
@@ -786,7 +738,7 @@ namespace bbtk
     if ( i != mPackageMap.end() ) 
     {
       bbtkDebugDecTab("Kernel",9); 
-      return i->second.mPackage;
+      return i->second;
     }
     else 
     {
@@ -798,31 +750,26 @@ namespace bbtk
   }
   //===================================================================
   
+
   //===================================================================
-  Package* Factory::GetPackage(const std::string& name) 
+  void Factory::CheckPackages() const
   {
-    bbtkDebugMessageInc("Kernel",9,"Factory::GetPackage(\""<<name<<"\")"
-                         <<std::endl);
-
-    PackageMapType::const_iterator i = mPackageMap.find(name);
-    if ( i != mPackageMap.end() ) 
-    {
-      bbtkDebugDecTab("Kernel",9); 
-      return i->second.mPackage;
-    }
-    else 
-    {
-       bbtkDebugDecTab("Kernel",9);
-       bbtkError("package \""<<name<<"\" unknown");
-    }
-    
-    bbtkDebugDecTab("Kernel",9);  
+    bbtkMessage("Debug",1,"****** Checking Factory "<<(void*)this
+		 <<std::endl);
+    PackageMapType::const_iterator i;
+    for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
+      {
+	i->second->CheckBoxes();
+      }
+    bbtkMessage("Debug",1,"****** Checking Factory "<<(void*)this
+		<<" ... OK"<<std::endl);
   }
   //===================================================================
 
   //===================================================================
   void Factory::WriteDotFilePackagesList(FILE *ff)
   {
+
     bbtkDebugMessageInc("Kernel",9,"Factory::WriteDotFilePackagesList()"
                          <<std::endl);
 
@@ -848,11 +795,12 @@ namespace bbtk
 
  void Factory::ShowGraphTypes(const std::string& name) const
  {
+
    bool found = false;
    PackageMapType::const_iterator i;
    for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
    {
-      if (i->second.mPackage->ContainsBlackBox(name)) 
+      if (i->second->ContainsBlackBox(name)) 
       {
          std::string separator = ConfigurationFile::GetInstance().Get_file_separator ();
 
@@ -871,11 +819,11 @@ namespace bbtk
         ff=fopen(filename2.c_str(),"w");
 
         fprintf(ff,"<html><head><title>TMP</title> <script type=\"text/javascript\"> <!--\n");
-        fprintf(ff,"  window.location=\"%s#%s\";\n" , i->second.mPackage->GetDocURL().c_str(),name.c_str() );
+        fprintf(ff,"  window.location=\"%s#%s\";\n" , i->second->GetDocURL().c_str(),name.c_str() );
         fprintf(ff,"//--></script></head><body></body></html>\n");
 
 
-        //fprintf(ff, "<a  href=\"%s#%s\">Link</a>\n", i->second.mPackage->GetDocURL().c_str(),name.c_str() );
+        //fprintf(ff, "<a  href=\"%s#%s\">Link</a>\n", i->second->GetDocURL().c_str(),name.c_str() );
         fclose(ff);
         system( command.c_str() );      
         found = true;
@@ -901,13 +849,14 @@ namespace bbtk
     
     std::string title;
 
-    typedef std::map<std::string, std::vector<BlackBoxDescriptor*> > IndexType;
+    typedef std::map<std::string, 
+      std::vector<BlackBoxDescriptor::Pointer> > IndexType;
     IndexType index;
     // Builds the index map
     PackageMapType::const_iterator i;
     for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
       {
-	Package* pack = i->second.mPackage;
+	Package::Pointer pack = i->second;
 	if (pack->GetName()=="user") continue;
 	Package::BlackBoxMapType::const_iterator j;
 	for (j = pack->GetBlackBoxMap().begin(); 
@@ -915,6 +864,16 @@ namespace bbtk
 	     ++j)
 	  {
 	    
+	    // Skip adaptors 
+	    if ( type==Adaptors )
+	      {  
+		if (j->second->GetKind() == BlackBoxDescriptor::STANDARD )
+		  continue;
+	      }
+	    else 
+	      if (j->second->GetKind() != BlackBoxDescriptor::STANDARD )
+		continue;
+
 	    std::vector<std::string> keys;
 	    if (type==Packages)
 	      {
@@ -923,7 +882,7 @@ namespace bbtk
 		keys.push_back(k);
 		title = "Boxes by package";
 	      }
-	    else if (type==Initials)
+	    else if ((type==Initials) || (type==Adaptors))
 	      {
 		std::string init(" ");
 		init[0] =  std::toupper(j->second->GetTypeName()[0]);
@@ -940,6 +899,7 @@ namespace bbtk
 		  keys.push_back(" NONE");
 		title = "Boxes by category";
 	      }
+    
 	    
 	    std::vector<std::string>::const_iterator k;
 	    for (k=keys.begin(); k!=keys.end(); ++k )
@@ -952,7 +912,7 @@ namespace bbtk
 		  }
 		else 
 		  {
-		    std::vector<BlackBoxDescriptor*> v;
+		    std::vector<BlackBoxDescriptor::Pointer> v;
 		    v.push_back(j->second);
 		    index[*k] = v;
 		  }
@@ -1004,7 +964,7 @@ namespace bbtk
     IndexType::iterator ii;
     for (ii=index.begin();ii!=index.end();++ii)
       {
-	s << "<a href=\"#"<<ii->first<<"\">"<<ii->first<<"</a>&nbsp;";	
+	s << "<a href=\"#"<<ii->first<<"\">"<<ii->first<<"</a>&nbsp;&nbsp;";	
       }
 
     for (ii=index.begin();ii!=index.end();++ii)
@@ -1016,6 +976,11 @@ namespace bbtk
 	    s << "<a name=\""<<ii->first<<"\"></a>\n"; 
 	    s << "<p><a href=\""<<ii->first<<"/index.html\">"
 	      << ii->first<<"</a>\n"; 
+
+	    s << "&nbsp;&nbsp;-&nbsp;&nbsp;\n"; 
+
+	    s << "<a name=\"doxygen\"></a>\n"; 
+	    s << "<a href=..\\doxygen\\" << ii->first << "/main.html>(Doxygen documentation of the source)</a>\n"; 
 	  }
 	else 
 	  {
@@ -1026,7 +991,7 @@ namespace bbtk
 
 	s << "<p><TABLE cellspacing=0  cellpadding=3>\n";
 
-	std::vector<BlackBoxDescriptor*>::iterator di;
+	std::vector<BlackBoxDescriptor::Pointer>::iterator di;
 	for (di=ii->second.begin();di!=ii->second.end();++di)
 	  {
 	    std::string pack = (*di)->GetPackage()->GetName();
@@ -1066,6 +1031,50 @@ namespace bbtk
     bbtkDebugDecTab("Kernel",9);
   }
 
+ //==========================================================================
+  std::string Factory::GetObjectName() const
+  {
+    return std::string("Factory");
+  }
+  //==========================================================================
+  
+  //==========================================================================
+  std::string  Factory::GetObjectInfo() const 
+  {
+    std::stringstream i;
+    return i.str();
+  }
+  //==========================================================================
+
+  //==========================================================================
+size_t  Factory::GetObjectSize() const 
+{
+  size_t s = Superclass::GetObjectSize();
+  s += Factory::GetObjectInternalSize();
+  return s;
+  }
+  //==========================================================================
+  //==========================================================================
+size_t  Factory::GetObjectInternalSize() const 
+{
+  size_t s = sizeof(Factory);
+  return s;
+  }
+  //==========================================================================
+  //==========================================================================
+  size_t  Factory::GetObjectRecursiveSize() const 
+  {
+    size_t s = Superclass::GetObjectRecursiveSize();
+    s += Factory::GetObjectInternalSize();
+
+    PackageMapType::const_iterator i;
+    for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
+    {
+      s += i->second->GetObjectRecursiveSize();
+    }
+    return s;
+  }
+  //==========================================================================
 
 }