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// Copyright (c) 2005-2022 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 QPDFXREFENTRY_HH
#define QPDFXREFENTRY_HH
#include <qpdf/DLL.h>
#include <qpdf/Types.h>
class QPDFXRefEntry
{
public:
// Type constants are from the PDF spec section
// "Cross-Reference Streams":
// 0 = free entry; not used
// 1 = "uncompressed"; field 1 = offset
// 2 = "compressed"; field 1 = object stream number, field 2 = index
QPDF_DLL
QPDFXRefEntry();
QPDF_DLL
QPDFXRefEntry(int type, qpdf_offset_t field1, int field2);
QPDF_DLL
int getType() const;
QPDF_DLL
qpdf_offset_t getOffset() const; // only for type 1
QPDF_DLL
int getObjStreamNumber() const; // only for type 2
QPDF_DLL
int getObjStreamIndex() const; // only for type 2
private:
// This class does not use the Members pattern to avoid a memory
// allocation for every one of these. A lot of these get created.
int type;
qpdf_offset_t field1;
int field2;
};
#endif // QPDFXREFENTRY_HH
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