pdf_object.hpp

来自「ncbi源码」· HPP 代码 · 共 178 行

/*
 * ===========================================================================
 * PRODUCTION $Log: pdf_object.hpp,v $
 * PRODUCTION Revision 1000.1  2004/06/01 21:03:47  gouriano
 * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.7
 * PRODUCTION
 * ===========================================================================
 */

#ifndef GUI_UTILS__PDF_OBJECT_HPP
#define GUI_UTILS__PDF_OBJECT_HPP

/*  $Id: pdf_object.hpp,v 1000.1 2004/06/01 21:03:47 gouriano Exp $
 * ===========================================================================
 *
 *                            PUBLIC DOMAIN NOTICE
 *               National Center for Biotechnology Information
 *
 *  This software/database is a "United States Government Work" under the
 *  terms of the United States Copyright Act.  It was written as part of
 *  the author's official duties as a United States Government employee and
 *  thus cannot be copyrighted.  This software/database is freely available
 *  to the public for use. The National Library of Medicine and the U.S.
 *  Government have not placed any restriction on its use or reproduction.
 *
 *  Although all reasonable efforts have been taken to ensure the accuracy
 *  and reliability of the software and data, the NLM and the U.S.
 *  Government do not and cannot warrant the performance or results that
 *  may be obtained by using this software or data. The NLM and the U.S.
 *  Government disclaim all warranties, express or implied, including
 *  warranties of performance, merchantability or fitness for any particular
 *  purpose.
 *
 *  Please cite the author in any work or product based on this material.
 *
 * ===========================================================================
 *
 * Authors:  Peter Meric
 *
 * File Description:
 *   CPdfObject - Stream for output of Adobe PDF objects
 */

#include <corelib/ncbiobj.hpp>
#include <gui/gui.hpp>
#include "pdf_obj.hpp"


BEGIN_NCBI_SCOPE



class NCBI_GUIUTILS_EXPORT CPdfObject : public CObject
{
public:
    typedef CRef<CPdfObj> TPdfObjRef;


    CPdfObject(unsigned int obj_num,
               unsigned int generation = 0,
               bool allowCompression = true
              );
    virtual ~CPdfObject();


    enum EPdfObjectFormat
    {
        eUncompressed,
        eCompressed
    };

    //virtual EPdfObjectFormat GetObjectFormat(void) const = 0;

    // direct access to write buffer
    CNcbiOstream& GetWriteBuffer(void);

    unsigned int GetObjNum(void) const;
    unsigned int GetGeneration(void) const;
    virtual string GetSeparator(void) const;

    // print the CPdfObject
    virtual void PrintTo(CNcbiOstream& stream) const;

    CPdfObject& operator<<(CPdfObject& (*pf)(CPdfObject&));

    CPdfDictionary& GetDictionary(void);
    TPdfObjRef& operator[](const string& key);

protected:
    void x_PrintTo(CNcbiOstream& stream);

private:
    unsigned int m_ObjNum;
    unsigned int m_Generation;
    string m_Obj;
    CNcbiStrstream m_Buffer;
    string m_Separator;
    CPdfDictionary m_Dictionary;
    bool m_AllowCompression;
};


inline CPdfObject& pdfbrk(CPdfObject& pdfstrm)
{
    pdfstrm.GetWriteBuffer() << pdfstrm.GetSeparator();
    return pdfstrm;
}


template <typename T>
inline CPdfObject& operator<<(CPdfObject& pdfobj, const T& obj)
{
    pdfobj.GetWriteBuffer() << obj;
    return pdfobj;
}


inline CNcbiOstream& operator<<(CNcbiOstream& strm, const CPdfObject& obj)
{
    obj.PrintTo(strm);
    return strm;
}


class NCBI_GUIUTILS_EXPORT CPdfTrailer : public CPdfObject
{
public:
    CPdfTrailer();
    virtual ~CPdfTrailer();
    virtual void PrintTo(CNcbiOstream& stream) const;
};


template <typename T>
inline CPdfTrailer& operator<<(CPdfTrailer& pdfobj, const T& obj)
{
    NCBI_THROW(CException, eUnknown, "CPdfObject::operator<< - illegal use of CPdfTrailer");
}



END_NCBI_SCOPE


#endif // GUI_UTILS__PDF_OBJECT_HPP


/*
 * ===========================================================================
 * $Log: pdf_object.hpp,v $
 * Revision 1000.1  2004/06/01 21:03:47  gouriano
 * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.7
 *
 * Revision 1.7  2004/05/03 13:21:36  dicuccio
 * Added gui/gui.hpp
 *
 * Revision 1.6  2003/07/16 17:22:19  ucko
 * Fix typo (missing comma)
 *
 * Revision 1.5  2003/07/16 15:42:30  meric
 * Add flag to specify if object may be compressed
 *
 * Revision 1.4  2003/06/25 18:02:51  meric
 * Source rearrangement: move "private" headers into the src/ tree
 *
 * Revision 1.3  2003/06/18 17:25:27  meric
 * Final phase of print reorg: remove dependence on gui/opengl and OpenGL
 *
 * Revision 1.2  2003/06/16 12:46:21  dicuccio
 * Clean-up after initial commit
 *
 * Revision 1.1  2003/06/13 19:00:30  meric
 * Initial version
 *
 *
 * ===========================================================================
 */