fbreader/src/collection/LastOpenedBooks.cpp

   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 #include <algorithm>
  21
  22 #include <ZLStringUtil.h>
  23 #include <ZLOptions.h>
  24
  25 #include "BookCollection.h"
  26
  27 const std::string GROUP = "LastOpenedBooks";
  28 const std::string BOOK = "Book";
  29
  30 LastOpenedBooks::LastOpenedBooks() :
  31         MaxListSizeOption(ZLCategoryKey::STATE, GROUP, "MaxSize", 1, 100, 10) {
  32
  33         const int size = MaxListSizeOption.value();
  34         for (int i = 0; i < size; ++i) {
  35                 std::string num = BOOK;
  36                 ZLStringUtil::appendNumber(num, i);
  37                 std::string name = ZLStringOption(ZLCategoryKey::STATE, GROUP, num, "").value();
  38                 if (!name.empty()) {
  39                         BookDescriptionPtr description = BookDescription::getDescription(name);
  40                         if (!description.isNull()) {
  41                                 myBooks.push_back(description);
  42                         }
  43                 }
  44         }
  45 }
  46
  47 LastOpenedBooks::~LastOpenedBooks() {
  48         const int size = std::min(MaxListSizeOption.value(), (long)myBooks.size());
  49         for (int i = 0; i < size; ++i) {
  50                 std::string num = BOOK;
  51                 ZLStringUtil::appendNumber(num, i);
  52                 ZLStringOption(ZLCategoryKey::STATE, GROUP, num, "").setValue(myBooks[i]->fileName());
  53         }
  54 }
  55
  56 void LastOpenedBooks::addBook(const std::string &fileName) {
  57         for (Books::iterator it = myBooks.begin(); it != myBooks.end(); ++it) {
  58                 if ((*it)->fileName() == fileName) {
  59                         myBooks.erase(it);
  60                         break;
  61                 }
  62         }
  63         BookDescriptionPtr description = BookDescription::getDescription(fileName);
  64         if (!description.isNull()) {
  65                 myBooks.insert(myBooks.begin(), description);
  66         }
  67         const size_t maxSize = MaxListSizeOption.value();
  68         if (myBooks.size() > maxSize) {
  69                 myBooks.erase(myBooks.begin() + maxSize, myBooks.end());
  70         }
  71 }