Tide 0.1.0

seek_element.h

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00001 /* Tide
00002  *
00003  * Header file for the Seek element, a child of SeekHead.
00004  *
00005  * Copyright 2011 Geoffrey Biggs geoffrey.biggs@aist.go.jp
00006  *     RT-Synthesis Research Group
00007  *     Intelligent Systems Research Institute,
00008  *     National Institute of Advanced Industrial Science and Technology (AIST),
00009  *     Japan
00010  *     All rights reserved.
00011  *
00012  * This file is part of Tide.
00013  *
00014  * Tide is free software; you can redistribute it and/or modify it under
00015  * the terms of the GNU Lesser General Public License as published by
00016  * the Free Software Foundation; either version 2.1 of the License, or
00017  * (at your option) any later version.
00018  *
00019  * Tide is distributed in the hope that it will be useful, but WITHOUT
00020  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00021  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
00022  * License for more details.
00023  *
00024  * You should have received a copy of the GNU Lesser General Public
00025  * License along with Tide. If not, see <http://www.gnu.org/licenses/>.
00026  */
00027 
00028 #if !defined(TIDE_SEEK_ELEMENT_H_)
00029 #define TIDE_SEEK_ELEMENT_H_
00030 
00031 #include <ios>
00032 #include <tide/binary_element.h>
00033 #include <tide/el_ids.h>
00034 #include <tide/master_element.h>
00035 #include <tide/uint_element.h>
00036 #include <tide/win_dll.h>
00037 
00040 
00041 namespace tide
00042 {
00051     class TIDE_EXPORT SeekElement : public MasterElement
00052     {
00053         public:
00061             SeekElement(ids::ID id, std::streampos offset);
00062 
00064             virtual ~SeekElement() {}
00065 
00067             ids::ID indexed_id() const;
00069             void indexed_id(ids::ID id);
00070 
00072             std::streamsize offset() const { return offset_.value(); }
00074             void offset(std::streamsize offset) { offset_.value(offset); }
00075 
00077             virtual std::streamsize write_body(std::ostream& output);
00078 
00079         protected:
00080             BinaryElement indexed_id_;
00081             UIntElement offset_;
00082 
00084             virtual std::streamsize body_size() const;
00085 
00087             virtual std::streamsize read_body(std::istream& input,
00088                     std::streamsize size);
00089     }; // class SeekElement
00090 }; // namespace tide
00091 
00093 
00094 #endif // TIDE_SEEK_ELEMENT_H_
00095 
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