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 ScopedDirectory public header */
26 #ifndef HH_ScopedDirectory_
27 #define HH_ScopedDirectory_ 1
30 #include <boost/utility.hpp>
31 #include <boost/type_traits/is_convertible.hpp>
34 //#include "ScopedDirectory.mpp"
35 ///////////////////////////////hh.p////////////////////////////////////////
40 /** \brief Internal: Node creation helper traits (ScopedDirectory proxy)
42 This class is used like NodeCreateTraits to customize the child node creation. This trait
43 class is used however by the ScopedDirectory 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;
58 static NodeType & create(DirectoryNode & node, Owner & owner,
59 std::string const & name, Object const & ob);
63 /** \brief Internal: Marker base class for all ScopedDirectory proxies
65 class ScopedDirectoryBase
68 DirectoryNode & node() const; ///< Access the proxied DirectoryNode
70 ///////////////////////////////////////////////////////////////////////////
71 ///\name Proxied members (see DirectoryNode)
74 GenericNode::ptr remove(std::string const & name);
75 bool hasChild(std::string const & name) const;
76 DirectoryNode & getDirectory(std::string const & name) const;
77 DirectoryNode & operator[](std::string const & name) const;
78 CommandNode & getCommand(std::string const & name) const;
79 CommandNode & operator()(std::string const & name) const;
80 GenericNode & get(std::string const & name) const;
81 DirectoryNode & mkdir(std::string const & name);
82 DirectoryNode::ChildrenRange children() const;
83 DirectoryNode & doc(std::string const & doc);
88 ScopedDirectoryBase();
89 ~ScopedDirectoryBase();
92 DirectoryNode::ptr node_;
95 /** \brief DirectoryNode member proxy
97 ScopedDirectory is used whenever a class wants to manage it's own directory. The class
98 allows to declare the directory as a public member object. This allows the user of the class
99 to register the directory in the command tree. By using the proxy, the node is automatically
100 detached from the tree (and thereby destroyed) when the object (and thereby the proxy) is
107 ScopedDirectory<MyClass> configDir;
109 MyClass() : configDir(this)
116 The ScopedDirectory proxy implements 'add()' to add new children to the proxied
117 DirectoryNode. All add() variants supported by DirectoryNode are supported by
120 \idea This proxy could be made obsolete by allowing to allocate node objects
121 statically. This could be achieved by moving back to an intrusive_ptr implementation for
122 normal pointing needs with an added twist: Give each node a smart_ptr member pointing to
123 itself with a null deleter. This allows to create weak_ptr's to the nodes which will
124 automatically expire when the node is deleted (either statically or by the
129 template <class Owner=void>
130 class ScopedDirectory : public ScopedDirectoryBase
133 ///////////////////////////////////////////////////////////////////////////
138 ///////////////////////////////////////////////////////////////////////////
139 ///\name Structors and default members
142 ScopedDirectory(Owner * owner);
145 ///////////////////////////////////////////////////////////////////////////
147 template <class Object>
148 typename OwnerNodeCreateTraits<Owner, Object>::NodeType & add(std::string const & name,
150 ///< Create new child node
151 /**< Adds a new child node to the (proxied)
152 DirectoryNode. How the node is added is configured
153 using the OwnerNodeCreateTraits template. The default
154 implementation just forwards the call to the proxied
164 class ScopedDirectory<void> : public ScopedDirectoryBase
167 template <class Object>
168 typename NodeCreateTraits<Object>::NodeType & add(std::string const & name,
173 template <class Owner, class Function>
174 SimpleCommandNode & senf_console_add_node(
175 DirectoryNode & node, Owner & owner, std::string const & name, Function const & fn);
177 template <class Owner>
178 SimpleCommandNode & senf_console_add_node(
179 DirectoryNode & node, Owner & owner, std::string const & name,
180 void (Owner::*fn)(std::ostream &, ParseCommandInfo const &));
182 template <class Node>
183 DirectoryNode & senf_console_add_node(
184 DirectoryNode & dir, std::string const & name, Node const & node, int,
185 typename boost::enable_if< boost::is_convertible<Node*, ScopedDirectoryBase*> >::type * = 0);
190 ///////////////////////////////hh.e////////////////////////////////////////
191 #include "ScopedDirectory.cci"
192 //#include "ScopedDirectory.ct"
193 #include "ScopedDirectory.cti"
200 // comment-column: 40
201 // c-file-style: "senf"
202 // indent-tabs-mode: nil
203 // ispell-local-dictionary: "american"
204 // compile-command: "scons -u test"