File: FileInputSource.hh

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// Copyright (c) 2005-2018 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_FILEINPUTSOURCE_HH__
#define __QPDF_FILEINPUTSOURCE_HH__

#include <qpdf/InputSource.hh>

class FileInputSource: public InputSource
{
  public:
    QPDF_DLL
    FileInputSource();
    QPDF_DLL
    void setFilename(char const* filename);
    QPDF_DLL
    void setFile(char const* description, FILE* filep, bool close_file);
    QPDF_DLL
    virtual ~FileInputSource();
    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:
    FileInputSource(FileInputSource const&);
    FileInputSource& operator=(FileInputSource const&);

    void destroy();

    bool close_file;
    std::string filename;
    FILE* file;
};

#endif // __QPDF_FILEINPUTSOURCE_HH__