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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 QPDFFILESPECOBJECTHELPER_HH
#define QPDFFILESPECOBJECTHELPER_HH
#include <qpdf/QPDFObjectHelper.hh>
#include <qpdf/DLL.h>
#include <qpdf/QPDFEFStreamObjectHelper.hh>
#include <qpdf/QPDFObjectHandle.hh>
// This class provides a higher level interface around File
// Specification dictionaries, which are discussed in section 7.11 of
// the ISO-32000 PDF specification.
class QPDFFileSpecObjectHelper: public QPDFObjectHelper
{
public:
QPDF_DLL
QPDFFileSpecObjectHelper(QPDFObjectHandle);
QPDF_DLL
virtual ~QPDFFileSpecObjectHelper() = default;
QPDF_DLL
std::string getDescription();
// Get the main filename for this file specification. In priority
// order, check /UF, /F, /Unix, /DOS, /Mac.
QPDF_DLL
std::string getFilename();
// Return any of /UF, /F, /Unix, /DOS, /Mac filename keys that may
// be present in the object.
QPDF_DLL
std::map<std::string, std::string> getFilenames();
// Get the requested embedded file stream for this file
// specification. If key is empty, In priority order, check /UF,
// /F, /Unix, /DOS, /Mac. Returns a null object if not found. If
// this is an actual embedded file stream, its data is the content
// of the attachment. You can also use
// QPDFEFStreamObjectHelper for higher level access to
// the parameters.
QPDF_DLL
QPDFObjectHandle getEmbeddedFileStream(std::string const& key = "");
// Return the /EF key of the file spec, which is a map from file
// name key to embedded file stream.
QPDF_DLL
QPDFObjectHandle getEmbeddedFileStreams();
// Setters return a reference to this object so that they can be
// used as fluent interfaces, e.g.
// fsoh.setDescription(x).setFilename(y);
// Create a new filespec as an indirect object with the given
// filename, and attach the contents of the specified file as data
// in an embedded file stream.
QPDF_DLL
static QPDFFileSpecObjectHelper createFileSpec(
QPDF& qpdf, std::string const& filename, std::string const& fullpath);
// Create a new filespec as an indirect object with the given
// unicode filename and embedded file stream. The file name will
// be used as both /UF and /F. If you need to override, call
// setFilename.
QPDF_DLL
static QPDFFileSpecObjectHelper createFileSpec(
QPDF& qpdf, std::string const& filename, QPDFEFStreamObjectHelper);
QPDF_DLL
QPDFFileSpecObjectHelper& setDescription(std::string const&);
// setFilename sets /UF to unicode_name. If compat_name is empty,
// it is also set to unicode_name. unicode_name should be a UTF-8
// encoded string. compat_name is converted to a string
// QPDFObjectHandle literally, preserving whatever encoding it
// might happen to have.
QPDF_DLL
QPDFFileSpecObjectHelper& setFilename(
std::string const& unicode_name, std::string const& compat_name = "");
private:
class Members
{
friend class QPDFFileSpecObjectHelper;
public:
QPDF_DLL
~Members() = default;
private:
Members() = default;
Members(Members const&) = delete;
};
std::shared_ptr<Members> m;
};
#endif // QPDFFILESPECOBJECTHELPER_HH
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