mirror of https://github.com/qpdf/qpdf.git
96 lines
2.3 KiB
C++
96 lines
2.3 KiB
C++
// Copyright (c) 2005-2023 Jay Berkenbilt
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//
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// This file is part of qpdf.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Versions of qpdf prior to version 7 were released under the terms
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// of version 2.0 of the Artistic License. At your option, you may
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// continue to consider qpdf to be licensed under those terms. Please
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// see the manual for additional information.
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#ifndef QPDFOBJGEN_HH
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#define QPDFOBJGEN_HH
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#include <qpdf/DLL.h>
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#include <iostream>
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// This class represents an object ID and generation pair. It is
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// suitable to use as a key in a map or set.
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class QPDFObjGen
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{
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public:
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QPDF_DLL
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QPDFObjGen() :
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obj(0),
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gen(0)
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{
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}
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QPDF_DLL
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explicit QPDFObjGen(int obj, int gen) :
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obj(obj),
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gen(gen)
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{
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}
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QPDF_DLL
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bool
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operator<(QPDFObjGen const& rhs) const
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{
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return (obj < rhs.obj) || ((obj == rhs.obj) && (gen < rhs.gen));
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}
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QPDF_DLL
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bool
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operator==(QPDFObjGen const& rhs) const
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{
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return (obj == rhs.obj) && (gen == rhs.gen);
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}
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QPDF_DLL
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bool
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operator!=(QPDFObjGen const& rhs) const
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{
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return (obj != rhs.obj) || (gen != rhs.gen);
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}
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QPDF_DLL
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int
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getObj() const
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{
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return obj;
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}
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QPDF_DLL
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int
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getGen() const
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{
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return gen;
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}
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QPDF_DLL
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bool
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isIndirect() const
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{
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return obj != 0;
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}
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QPDF_DLL
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std::string unparse(char separator = ',') const;
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QPDF_DLL
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friend std::ostream& operator<<(std::ostream& os, const QPDFObjGen& og);
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private:
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// This class does not use the Members pattern to avoid a memory
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// allocation for every one of these. A lot of these get created
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// and destroyed.
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int obj;
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int gen;
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};
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#endif // QPDFOBJGEN_HH
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