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qpdf/include/qpdf/QPDFDocumentHelper.hh
2020-01-26 16:57:27 -05:00

67 lines
2.0 KiB
C++

// Copyright (c) 2005-2020 Jay Berkenbilt
//
// This file is part of qpdf.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Versions of qpdf prior to version 7 were released under the terms
// of version 2.0 of the Artistic License. At your option, you may
// continue to consider qpdf to be licensed under those terms. Please
// see the manual for additional information.
#ifndef QPDFDOCUMENTHELPER_HH
#define QPDFDOCUMENTHELPER_HH
#include <qpdf/DLL.h>
#include <qpdf/QPDF.hh>
// This is a base class for QPDF Document Helper classes. Document
// helpers are classes that provide a convenient, higher-level API for
// accessing document-level structures with a PDF file. Document
// helpers are always initialized with a reference to a QPDF object,
// and the object can always be retrieved. The intention is that you
// may freely intermix use of document helpers with the underlying
// QPDF object unless there is a specific comment in a specific helper
// method that says otherwise. The pattern of using helper objects was
// introduced to allow creation of higher level helper functions
// without polluting the public interface of QPDF.
class QPDFDocumentHelper
{
public:
QPDF_DLL
QPDFDocumentHelper(QPDF& qpdf) :
qpdf(qpdf)
{
}
QPDF_DLL
virtual ~QPDFDocumentHelper()
{
}
QPDF_DLL
QPDF& getQPDF()
{
return this->qpdf;
}
QPDF_DLL
QPDF const& getQPDF() const
{
return this->qpdf;
}
protected:
QPDF& qpdf;
};
#endif // QPDFDOCUMENTHELPER_HH