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Image.hh

/*

    libpdf++: a C++ Free library to generate PDF file
    Copyright (C) 2002 Nestal Wan

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/
#ifndef __IMAGE_IMAGE_HEADER_INCLUDED__
#define __IMAGE_IMAGE_HEADER_INCLUDED__

#ifndef __IMAGE_HEADER_HEADER_INCLUDED__
#include "Header.hh"
#endif

#include <vector>

namespace image {

class CImage
{
public :
    typedef std::vector<unsigned char>  CPixelVec ;

    typedef CPixelVec::const_iterator   iterator ;

private :
    CHeader     m_header ;
    
    CPixelVec   m_pixels ;

public :
    CImage( ) ;
    CImage( const CHeader& header, const CPixelVec& pixels ) ;
    ~CImage( ) ;
    
    // change the image data without copying pixels
    void SwapAssign( const CHeader& header, CPixelVec& pixels ) ;
    void SwapPixels( CPixelVec& pixels ) ;
    
    // data access
    const CHeader& Header( ) const ;
    const CPixelVec& Pixels( ) const ;
    
    // STL style functions
    void Assign( const CHeader& header, const CPixelVec& pixels ) ;
    bool Empty( ) const ;
    void Clear( ) ;
    iterator Begin( ) const { return m_pixels.begin( ) ; }
    iterator End( ) const { return m_pixels.end( ) ; }

private :
#ifdef _DEBUG
    bool IsValid( ) const ;
#endif
} ;

} // end of namespace

#endif

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