ifddir.h

00001 /*
00002  * libopenraw - ifddir.h
00003  *
00004  * Copyright (C) 2006 Hubert Figuiere
00005  *
00006  * This library is free software; you can redistribute it and/or
00007  * modify it under the terms of the GNU Lesser General Public
00008  * License as published by the Free Software Foundation; either
00009  * version 2.1 of the License, or (at your option) any later version.
00010  *
00011  * This library is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Lesser General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public
00017  * License along with this library; if not, write to the Free Software
00018  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00019  */
00020 
00021 
00022 #ifndef _OPENRAW_INTERNALS_IFDDIR_H
00023 #define _OPENRAW_INTERNALS_IFDDIR_H
00024 
00025 #include <map>
00026 
00027 #include <boost/shared_ptr.hpp>
00028 #include "ifdentry.h"
00029 
00030 namespace OpenRaw {
00031     namespace Internals {
00032         
00033         class IFDFileContainer;
00034 
00035         class IFDDir
00036         {
00037         public:
00038             typedef boost::shared_ptr<IFDDir> Ref;
00039 
00040             IFDDir(off_t _offset, IFDFileContainer & _container);
00041             virtual ~IFDDir();
00042             
00044             off_t offset() const
00045                 {
00046                     return m_offset;
00047                 }
00048 
00050             bool load();
00052             int numTags()
00053                 {
00054                     return m_entries.size();
00055                 }
00056             IFDEntry::Ref getEntry(int id);
00057 
00066             bool getIntegerValue(int id, uint32_t &v);
00072             bool getLongValue(int id, uint32_t &v);
00078             bool getShortValue(int id, uint16_t &v);
00082             off_t nextIFD();
00083 
00087             Ref getSubIFD();
00088 
00092             Ref getExifIFD();
00093         private:
00094             off_t m_offset;
00095             IFDFileContainer & m_container;
00096             std::map<int, IFDEntry::Ref> m_entries;
00097         };
00098 
00099 
00100     }
00101 }
00102 
00103 
00104 #endif
00105 

Generated on Sat Jan 27 11:36:13 2007 for libopenraw by  doxygen 1.4.7