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// Copyright (c) 2005-2019 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 QPDF_BUFFERINPUTSOURCE_HH
#define QPDF_BUFFERINPUTSOURCE_HH
#include <qpdf/InputSource.hh>
#include <qpdf/Buffer.hh>
class BufferInputSource: public InputSource
{
public:
// If own_memory is true, BufferInputSource will delete the buffer
// when finished with it. Otherwise, the caller owns the memory.
QPDF_DLL
BufferInputSource(std::string const& description, Buffer* buf,
bool own_memory = false);
QPDF_DLL
BufferInputSource(std::string const& description,
std::string const& contents);
QPDF_DLL
virtual ~BufferInputSource();
QPDF_DLL
virtual qpdf_offset_t findAndSkipNextEOL();
QPDF_DLL
virtual std::string const& getName() const;
QPDF_DLL
virtual qpdf_offset_t tell();
QPDF_DLL
virtual void seek(qpdf_offset_t offset, int whence);
QPDF_DLL
virtual void rewind();
QPDF_DLL
virtual size_t read(char* buffer, size_t length);
QPDF_DLL
virtual void unreadCh(char ch);
private:
static void range_check(qpdf_offset_t cur, qpdf_offset_t delta);
class Members
{
friend class BufferInputSource;
public:
QPDF_DLL
~Members();
private:
Members(bool own_memory, std::string const& description, Buffer* buf);
Members(Members const&);
bool own_memory;
std::string description;
Buffer* buf;
qpdf_offset_t cur_offset;
qpdf_offset_t max_offset;
};
PointerHolder<Members> m;
};
#endif // QPDF_BUFFERINPUTSOURCE_HH
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