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# end_info.hpp

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    00001 /*
    00002  * Copyright (C) 2007,2008   Alex Shulgin
    00003  *
    00004  * This file is part of png++ the C++ wrapper for libpng.  PNG++ is free
    00005  * software; the exact copying conditions are as follows:
    00006  *
    00007  * Redistribution and use in source and binary forms, with or without
    00008  * modification, are permitted provided that the following conditions are met:
    00009  *
    00010  * 1. Redistributions of source code must retain the above copyright notice,
    00011  * this list of conditions and the following disclaimer.
    00012  *
    00013  * 2. Redistributions in binary form must reproduce the above copyright
    00014  * notice, this list of conditions and the following disclaimer in the
    00015  * documentation and/or other materials provided with the distribution.
    00016  *
    00017  * 3. The name of the author may not be used to endorse or promote products
    00018  * derived from this software without specific prior written permission.
    00019  *
    00020  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
    00021  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
    00022  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
    00023  * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    00024  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
    00025  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
    00026  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
    00027  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
    00028  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    00029  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    00030  */
    00031 #ifndef PNGPP_END_INFO_HPP_INCLUDED
    00032 #define PNGPP_END_INFO_HPP_INCLUDED
    00033
    00034 #include "info_base.hpp"
    00035
    00036 namespace png
    00037 {
    00038
    00044     class end_info
    00045         : public info_base
    00046     {
    00047     public:
    00048         end_info(io_base& io, png_struct* png)
    00049             : info_base(io, png)
    00050         {
    00051         }
    00052
    00053         void destroy()
    00054         {
    00055             assert(m_info);
    00056             png_destroy_info_struct(m_png, & m_info);
    00057         }
    00058
    00059         void read()
    00060         {
    00061             png_read_end(m_png, m_info);
    00062         }
    00063
    00064         void write() const
    00065         {
    00066             png_write_end(m_png, m_info);
    00067         }
    00068
    00069         // TODO: add methods to read/write text comments etc.
    00070     };
    00071
    00072 } // namespace png
    00073
    00074 #endif // PNGPP_END_INFO_HPP_INCLUDED