4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
5 // Competence Center NETwork research (NET), St. Augustin, GERMANY
6 // Stefan Bund <g0dil@berlios.de>
8 // This program is free software; you can redistribute it and/or modify
9 // it under the terms of the GNU General Public License as published by
10 // the Free Software Foundation; either version 2 of the License, or
11 // (at your option) any later version.
13 // This program is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the
20 // Free Software Foundation, Inc.,
21 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 \brief ObjectDirectory public header */
26 #ifndef HH_ObjectDirectory_
27 #define HH_ObjectDirectory_ 1
30 #include <boost/utility.hpp>
31 #include <boost/type_traits/is_convertible.hpp>
34 //#include "ObjectDirectory.mpp"
35 ///////////////////////////////hh.p////////////////////////////////////////
40 /** \brief Internal: Node creation helper traits (ObjectDirectory proxy)
42 This class is used like NodeCreateTraits to customize the child node creation. This trait
43 class is used however by the ObjectDirectory proxy.
45 template <class Owner, class Object>
46 struct OwnerNodeCreateTraits
48 typedef BOOST_TYPEOF_TPL( senf_console_add_node(
49 * static_cast<DirectoryNode *>(0),
50 * static_cast<Owner *>(0),
51 * static_cast<std::string const *>(0),
52 * static_cast<Object const *>(0)) ) result_type;
54 typedef typename boost::remove_reference<result_type>::type NodeType;
57 static NodeType & create(DirectoryNode & node, Owner & owner,
58 std::string const & name, Object const & ob);
62 /** \brief Internal: Marker base class for all ObjectDirectory proxies
64 struct ObjectDirectoryBase {};
66 /** \brief DirectoryNode member proxy
68 ObjectDirectory is used whenever a class wants to manage it's own directory. The class
69 allows to declare the directory as a public member object. This allows the user of the class
70 to register the directory in the command tree. By using the proxy, the node is automatically
71 detached from the tree (and thereby destroyed) when the object (and thereby the proxy) is
78 ObjectDirectory<MyClass> configDir;
80 MyClass() : configDir(this)
87 The ObjectDirectory proxy implements 'add()' to add new children to the proxied
88 DirectoryNode. All add() variants supported by DirectoryNode are supported by
91 \idea This proxy could be made obsolete by allowing to allocate node objects
92 statically. This could be achieved by moving back to an intrusive_ptr implementation for
93 normal pointing needs with an added twist: Give each node a smart_ptr member pointing to
94 itself with a null deleter. This allows to create weak_ptr's to the nodes which will
95 automatically expire when the node is deleted (either statically or by the
98 template <class Owner>
99 class ObjectDirectory : public ObjectDirectoryBase
102 ///////////////////////////////////////////////////////////////////////////
107 ///////////////////////////////////////////////////////////////////////////
108 ///\name Structors and default members
111 ObjectDirectory(Owner * owner);
115 ///////////////////////////////////////////////////////////////////////////
117 template <class Object>
118 typename OwnerNodeCreateTraits<Owner, Object>::NodeType & add(std::string const & name,
120 ///< Create new child node
121 /**< Adds a new child node to the (proxied)
122 DirectoryNode. How the node is added is configured
123 using the OwnerNodeCreateTraits template. The default
124 implementation just forwards the call to the proxied
127 DirectoryNode & node() const; ///< Access the proxied DirectoryNode
132 DirectoryNode::ptr node_;
137 template <class Owner, class Function>
138 SimpleCommandNode & senf_console_add_node(
139 DirectoryNode & node, Owner & owner, std::string const & name, Function const & fn);
141 template <class Owner>
142 SimpleCommandNode & senf_console_add_node(
143 DirectoryNode & node, Owner & owner, std::string const & name,
144 void (Owner::*fn)(std::ostream & output, CommandNode::Arguments const & arguments));
146 template <class Node>
147 DirectoryNode & senf_console_add_node(
148 DirectoryNode & dir, std::string const & name, Node const & node, int,
149 typename boost::enable_if< boost::is_convertible<Node*, ObjectDirectoryBase*> >::type * = 0);
154 ///////////////////////////////hh.e////////////////////////////////////////
155 //#include "ObjectDirectory.cci"
156 //#include "ObjectDirectory.ct"
157 #include "ObjectDirectory.cti"
164 // comment-column: 40
165 // c-file-style: "senf"
166 // indent-tabs-mode: nil
167 // ispell-local-dictionary: "american"
168 // compile-command: "scons -u test"