1/*
2 kmime_header_factory.h
3
4 KMime, the KDE Internet mail/usenet news message library.
5 Copyright (c) 2009 Constantin Berzan <exit3219@gmail.com>
6
7 This library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Library General Public
9 License as published by the Free Software Foundation; either
10 version 2 of the License, or (at your option) any later version.
11
12 This library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Library General Public License for more details.
16
17 You should have received a copy of the GNU Library General Public License
18 along with this library; see the file COPYING.LIB. If not, write to
19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA.
21*/
22/**
23 @file
24 This file is part of the API for handling @ref MIME data and
25 defines the HeaderFactory class.
26
27 @brief
28 Defines the HeaderFactory class.
29
30 @authors Constantin Berzan \<exit3219@gmail.com\>
31*/
32
33#ifndef __KMIME_HEADERFACTORY_H__
34#define __KMIME_HEADERFACTORY_H__
35
36#include "kmime_export.h"
37
38#include <QtCore/QByteArray>
39
40namespace KMime {
41
42namespace Headers {
43 class Base;
44}
45
46class HeaderMakerBase
47{
48 public:
49 virtual ~HeaderMakerBase() {}
50 virtual Headers::Base *create() const = 0;
51};
52
53template <typename T>
54class HeaderMaker : public HeaderMakerBase
55{
56 public:
57 virtual Headers::Base *create() const
58 {
59 return new T;
60 }
61};
62
63class HeaderFactoryPrivate;
64
65/**
66 docu TODO
67*/
68class HeaderFactory
69{
70 public:
71 static HeaderFactory* self();
72
73 template<typename T> inline bool registerHeader()
74 {
75 T dummy;
76 return registerHeaderMaker( QByteArray( dummy.type() ), new HeaderMaker<T>() );
77 }
78
79 Headers::Base *createHeader( const QByteArray &type );
80
81 private:
82 explicit HeaderFactory( HeaderFactoryPrivate *dd );
83 HeaderFactory( const HeaderFactory &other ); // undefined
84 HeaderFactory& operator=( const HeaderFactory &other ); // undefined
85 ~HeaderFactory();
86
87 bool registerHeaderMaker( const QByteArray &type, HeaderMakerBase *maker );
88
89 friend class HeaderFactoryPrivate;
90 HeaderFactoryPrivate *const d;
91};
92
93} // namespace KMime
94
95#endif /* __KMIME_HEADERFACTORY_H__ */
96