fbreader/src/description/Author.h

   1 /*
   2  * Copyright (C) 2004-2008 Geometer Plus <contact@geometerplus.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301, USA.
  18  */
  19
  20 #ifndef __AUTHOR_H__
  21 #define __AUTHOR_H__
  22
  23 #include <string>
  24 #include <vector>
  25
  26 #include <shared_ptr.h>
  27
  28 class Author;
  29 typedef shared_ptr<Author> AuthorPtr;
  30
  31 class Author {
  32
  33 protected:
  34         Author();
  35
  36 public:
  37         virtual ~Author();
  38
  39         virtual const std::string &displayName() const = 0;
  40         virtual const std::string &sortKey() const = 0;
  41         virtual bool isSingle() const = 0;
  42
  43 private:
  44         Author(const Author&);
  45         const Author &operator= (const Author&);
  46 };
  47
  48 class SingleAuthor : public Author {
  49
  50 public:
  51         static AuthorPtr create(const std::string &displayName, const std::string &sortKey);
  52         static AuthorPtr create();
  53
  54 private:
  55         SingleAuthor(const std::string &displayName, const std::string &sortKey);
  56
  57 public:
  58         const std::string &displayName() const;
  59         const std::string &sortKey() const;
  60         bool isSingle() const;
  61
  62 private:
  63         std::string myDisplayName;
  64         std::string mySortKey;
  65 };
  66
  67 class MultiAuthor : public Author {
  68
  69 public:
  70         static AuthorPtr create(AuthorPtr author);
  71
  72 private:
  73         MultiAuthor(AuthorPtr author);
  74
  75 public:
  76         void addAuthor(AuthorPtr author) ;
  77         const std::string &displayName() const;
  78         const std::string &sortKey() const;
  79         bool isSingle() const;
  80
  81 private:
  82         std::vector<AuthorPtr > myAuthors;
  83         mutable std::string myDisplayName;
  84         mutable std::string mySortKey;
  85 };
  86
  87 class AuthorComparator {
  88
  89 public:
  90         AuthorComparator();
  91         ~AuthorComparator();
  92         bool operator() (const AuthorPtr a1, const AuthorPtr a2);
  93 };
  94
  95 inline Author::Author() {}
  96 inline Author::~Author() {}
  97
  98 inline AuthorPtr SingleAuthor::create(const std::string &displayName, const std::string &sortKey) { return new SingleAuthor(displayName, sortKey); }
  99 inline AuthorPtr SingleAuthor::create() { return create("Unknown Author", "___"); }
 100 inline SingleAuthor::SingleAuthor(const std::string &displayName, const std::string &sortKey) : myDisplayName(displayName), mySortKey(sortKey) {}
 101
 102 inline AuthorPtr MultiAuthor::create(AuthorPtr author) { return new MultiAuthor(author); }
 103 inline MultiAuthor::MultiAuthor(AuthorPtr author) { addAuthor(author); }
 104
 105 inline AuthorComparator::AuthorComparator() {}
 106 inline AuthorComparator::~AuthorComparator() {}
 107 inline bool AuthorComparator::operator() (const AuthorPtr a1, const AuthorPtr a2) {
 108         return
 109                 (a1->sortKey() < a2->sortKey()) ||
 110                 ((a1->sortKey() == a2->sortKey()) && (a1->displayName() < a2->displayName()));
 111 }
 112
 113 #endif /* __AUTHOR_H__ */