fbreader/src/formats/chm/CHMFileImage.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 <ZLFile.h>
  21
  22 #include "CHMFileImage.h"
  23
  24 CHMFileImage::CHMFileImage(shared_ptr<CHMFileInfo> info, const std::string &entry) : ZLStreamImage("image/auto", 0, 0), myInfo(info), myEntry(entry) {
  25 }
  26
  27 shared_ptr<ZLInputStream> CHMFileImage::inputStream() const {
  28         shared_ptr<ZLInputStream> baseStream = ZLFile(myInfo->fileName()).inputStream();
  29         if (baseStream.isNull() || !baseStream->open()) {
  30                 return 0;
  31         }
  32         return myInfo->entryStream(baseStream, myEntry);
  33 }