Created src subdirectory.

src/attributes.hpp

@@ -0,0 +1,78 @@
+//! \file settable.hpp
+//! \brief C++ Library (header-only).
+
+//  settable.hpp  ------------------------------------------------------------//
+
+// 
+// Copyright Jens Luedicke 2010
+// 
+//  Distributed under the Boost Software License, Version 1.0. (See accompanying
+//  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//----------------------------------------------------------------------------// 
+
+#ifndef SETTABLE_HPP
+#define SETTABLE_HPP
+
+#include "string2type.hpp"
+
+#include <map>
+#include <string>
+
+#include <boost/shared_ptr.hpp>
+
+class abstract_attribute {
+public:
+    virtual void set_value(const std::string &value) = 0;
+};
+
+template<typename T>
+class attribute : public abstract_attribute {
+public:
+    explicit attribute(T &object)
+        : reference(object) {
+    }
+
+    virtual void set_value(const std::string &value) {
+        reference = string2type::convert<T>(value);
+    }
+
+    virtual T& get_value() const {
+        return reference;
+    }
+
+private:
+    T &reference;
+};
+
+#define REGISTER_ATTRIBUTE(Type, Attribute) \
+    this->register_attribute<Type>(#Attribute, this->Attribute);
+
+class attributes {
+public:
+    void set_attribute(const std::string &attr, const std::string &value) {
+        attributes_map::iterator it = attributes.find(attr);
+
+        if (it != attributes.end()) {
+            it->second->set_value(value);
+        }
+    }
+
+    template<typename T>
+    void register_attribute(const std::string &name, T &object) {
+        typedef attribute<T> specific_attribute;
+
+        attribute_ptr attribute(new specific_attribute(object));
+
+        attributes.insert(std::make_pair(name, attribute));
+    }
+
+private:
+    typedef boost::shared_ptr<abstract_attribute> attribute_ptr;
+    typedef std::map<std::string, attribute_ptr> attributes_map;
+
+    attributes_map attributes;
+};
+
+#endif /* SETTABLE_HPP */
+