Filter.h

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//---------------------------------------------------------------------------------------
// Copyright (c) 2001-2008 by PDFTron Systems Inc. All Rights Reserved.
// Consult legal.txt regarding legal and license information.
//---------------------------------------------------------------------------------------

#ifndef   H_CPPFilterFilter
#define   H_CPPFilterFilter

#include <Common/UString.h>
#include <C/Filters/TRN_Filter.h>
#include <C/Common/TRN_Types.h>
#include <stdio.h>

namespace pdftron { 
        namespace Filters {

class Filter
{
public:
         Filter();
         ~Filter ();

         Filter(const Filter& copy);
        
         Filter& operator=(const Filter& other);

         operator bool () { return m_impl!=0;}

         void AttachFilter(Filter attach_filter);

         Filter ReleaseAttachedFilter ();       

         Filter GetAttachedFilter ();

         Filter GetSourceFilter ();

         const char* GetName () const;

         const char* GetDecodeName () const;

         UChar* Begin ();

         ULong Size ();

         void Consume (ULong num_bytes);

         ULong Count ();

         ULong SetCount (ULong new_count);

         void SetStreamLength (ULong bytes); 

         void Flush ();

         void FlushAll ();

         bool IsInputFilter ();

         bool CanSeek ();

        enum ReferencePos 
        { 
                e_begin = SEEK_SET,
                e_end   = SEEK_END, 
                e_cur   = SEEK_CUR
        };

         void Seek (long offset, ReferencePos origin);

         ULong Tell ();

         Filter CreateInputIterator ();

         const UString GetFilePath() const;


        TRN_Filter m_impl;
        Filter(TRN_Filter impl, bool is_owner);
        bool m_owner;
};


#include <Impl/Filter.inl>


        };      // namespace Filters
};      // namespace pdftron

#endif

---

© 2002-2008 PDFTron Systems Inc.