Changeset 3325 for code/trunk/src/core/Identifier.h

Timestamp:

Jul 19, 2009, 3:48:00 PM (16 years ago)

Author:

rgrieder

Message:

Merged orxonox_cast related revisions from core4 back to trunk.

Location:

code/trunk

Files:

• . (modified) (1 prop)
• src/core/Identifier.h (modified) (6 diffs)

code/trunk/src/core/Identifier.h

@@ -224 +224 @@
 
             /** @brief Returns the network ID to identify a class through the network. @return the network ID */
-            inline const uint32_t getNetworkID() const { return this->classID_; }
+            inline const uint32_t getNetworkID() const { return this->networkID_; }
 
             /** @brief Sets the network ID to a new value. @param id The new value */
             void setNetworkID(uint32_t id);
+
+            /** @brief Returns the unique ID of the class */
+            FORCEINLINE unsigned int getClassID() const { return this->classID_; }
 
             void addConfigValueContainer(const std::string& varname, ConfigValueContainer* container);
@@ -305 +308 @@
             BaseFactory* factory_;                                         //!< The Factory, able to create new objects of the given class (if available)
             static int hierarchyCreatingCounter_s;                         //!< Bigger than zero if at least one Identifier stores its parents (its an int instead of a bool to avoid conflicts with multithreading)
-            uint32_t classID_;                                             //!< The network ID to identify a class through the network
+            uint32_t networkID_;                                           //!< The network ID to identify a class through the network
+            const unsigned int classID_;                                   //!< Uniquely identifies a class (might not be the same as the networkID_)
+            static unsigned int classIDCounter_s;                          //!< Static counter for the unique classIDs
 
             bool bHasConfigValues_;                                        //!< True if this class has at least one assigned config value
@@ -344 +349 @@
             static ClassIdentifier<T> *getIdentifier();
             static ClassIdentifier<T> *getIdentifier(const std::string& name);
-            void addObject(T* object);
+
+            bool initialiseObject(T* object, const std::string& className, bool bRootClass);
 
             void updateConfigValues(bool updateChildren = true) const;
@@ -423 +429 @@
     */
     template <class T>
-    inline void ClassIdentifier<T>::addObject(T* object)
-    {
-        COUT(5) << "*** ClassIdentifier: Added object to " << this->getName() << "-list." << std::endl;
-        object->getMetaList().add(this->objects_, this->objects_->add(new ObjectListElement<T>(object)));
+    bool ClassIdentifier<T>::initialiseObject(T* object, const std::string& className, bool bRootClass)
+    {
+        if (bRootClass)
+            COUT(5) << "*** Register Root-Object: " << className << std::endl;
+        else
+            COUT(5) << "*** Register Object: " << className << std::endl;
+
+        object->identifier_ = this;
+        if (Identifier::isCreatingHierarchy())
+        {
+            if (bRootClass && !object->parents_)
+                object->parents_ = new std::set<const Identifier*>();
+
+            if (object->parents_)
+            {
+                this->initializeClassHierarchy(object->parents_, bRootClass);
+                object->parents_->insert(object->parents_->end(), this);
+            }
+
+            object->setConfigValues();
+            return true;
+        }
+        else
+        {
+            COUT(5) << "*** ClassIdentifier: Added object to " << this->getName() << "-list." << std::endl;
+            object->metaList_->add(this->objects_, this->objects_->add(new ObjectListElement<T>(object)));
+
+            // Add pointer of type T to the map in the OrxonoxClass instance that enables "dynamic_casts"
+            object->objectPointers_.push_back(std::make_pair(this->getClassID(), reinterpret_cast<void*>(object)));
+            return false;
+        }
     }
 
@@ -444 +477 @@
             for (std::set<const Identifier*>::const_iterator it = this->getChildrenBegin(); it != this->getChildrenEnd(); ++it)
                 (*it)->updateConfigValues(false);
+    }
+
+
+    // ###############################
+    // ###      orxonox_cast       ###
+    // ###############################
+    //! Helper struct to have orxonox_cast<T*> instead of orxonox_cast<T>
+    template <class T, class U>
+    struct OrxonoxCaster
+    {
+        static T* cast(U* source)
+        {
+            // If you see this function in a compiler error description, it means
+            // you were misusing orxonox_cast. You must always cast to a pointer type!
+            *****T();
+        }
+    };
+
+    //! Helper struct to have orxonox_cast<T*> instead of orxonox_cast<T*>
+    template <class T, class U>
+    struct OrxonoxCaster<T*, U>
+    {
+        FORCEINLINE static T* cast(U* source)
+        {
+#ifdef ORXONOX_COMPILER_MSVC
+            return source->template getDerivedPointer<T>(ClassIdentifier<T>::getIdentifier()->getClassID());
+#else
+            return dynamic_cast<T*>(source);
+#endif
+        }
+    };
+
+    /**
+    @brief
+        Casts on object of type OrxonoxClass to any derived type that is
+        registered in the class hierarchy.
+    @return
+        Returns NULL if the cast is not possible
+    @note
+        In case of NULL return (and using MSVC), a dynamic_cast might still be possible if
+        a class forgot to register its objects.
+        Also note that the function is implemented differently for GCC/MSVC.
+    */
+    template <class T, class U>
+    FORCEINLINE T orxonox_cast(U* source)
+    {
+        return OrxonoxCaster<T, U>::cast(source);
     }
 
@@ -539 +619 @@
                 if (newObject)
                 {
-                    return dynamic_cast<T*>(newObject);
+                    return orxonox_cast<T*>(newObject);
                 }
                 else