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107 lines
4.0 KiB
C++
107 lines
4.0 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"); you may not use this file except
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// in compliance with the License. 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 distributed under the License
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// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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// or implied. See the License for the specific language governing permissions and limitations under
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// the License.
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//
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// Versions of qpdf prior to version 7 were released under the terms of version 2.0 of the Artistic
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// License. At your option, you may continue to consider qpdf to be licensed under those terms.
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// Please see the manual for additional information.
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#ifndef QPDFFILESPECOBJECTHELPER_HH
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#define QPDFFILESPECOBJECTHELPER_HH
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#include <qpdf/QPDFObjectHelper.hh>
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#include <qpdf/DLL.h>
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#include <qpdf/QPDFEFStreamObjectHelper.hh>
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#include <qpdf/QPDFObjectHandle.hh>
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// This class provides a higher level interface around File Specification dictionaries, which are
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// discussed in section 7.11 of the ISO-32000 PDF specification.
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class QPDFFileSpecObjectHelper: public QPDFObjectHelper
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{
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public:
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QPDF_DLL
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QPDFFileSpecObjectHelper(QPDFObjectHandle);
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QPDF_DLL
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virtual ~QPDFFileSpecObjectHelper() = default;
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QPDF_DLL
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std::string getDescription();
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// Get the main filename for this file specification. In priority order, check /UF, /F, /Unix,
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// /DOS, /Mac.
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QPDF_DLL
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std::string getFilename();
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// Return any of /UF, /F, /Unix, /DOS, /Mac filename keys that may be present in the object.
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QPDF_DLL
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std::map<std::string, std::string> getFilenames();
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// Get the requested embedded file stream for this file specification. If key is empty, In
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// priority order, check /UF, /F, /Unix, /DOS, /Mac. Returns a null object if not found. If this
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// is an actual embedded file stream, its data is the content of the attachment. You can also
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// use QPDFEFStreamObjectHelper for higher level access to the parameters.
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QPDF_DLL
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QPDFObjectHandle getEmbeddedFileStream(std::string const& key = "");
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// Return the /EF key of the file spec, which is a map from file name key to embedded file
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// stream.
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QPDF_DLL
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QPDFObjectHandle getEmbeddedFileStreams();
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// Setters return a reference to this object so that they can be used as fluent interfaces, e.g.
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// fsoh.setDescription(x).setFilename(y);
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// Create a new filespec as an indirect object with the given filename, and attach the contents
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// of the specified file as data in an embedded file stream.
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QPDF_DLL
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static QPDFFileSpecObjectHelper
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createFileSpec(QPDF& qpdf, std::string const& filename, std::string const& fullpath);
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// Create a new filespec as an indirect object with the given unicode filename and embedded file
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// stream. The file name will be used as both /UF and /F. If you need to override, call
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// setFilename.
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QPDF_DLL
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static QPDFFileSpecObjectHelper
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createFileSpec(QPDF& qpdf, std::string const& filename, QPDFEFStreamObjectHelper);
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QPDF_DLL
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QPDFFileSpecObjectHelper& setDescription(std::string const&);
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// setFilename sets /UF to unicode_name. If compat_name is empty, it is also set to
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// unicode_name. unicode_name should be a UTF-8 encoded string. compat_name is converted to a
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// string QPDFObjectHandle literally, preserving whatever encoding it might happen to have.
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QPDF_DLL
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QPDFFileSpecObjectHelper&
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setFilename(std::string const& unicode_name, std::string const& compat_name = "");
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private:
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class Members
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{
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friend class QPDFFileSpecObjectHelper;
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public:
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QPDF_DLL
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~Members() = default;
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private:
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Members() = default;
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Members(Members const&) = delete;
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};
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std::shared_ptr<Members> m;
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};
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#endif // QPDFFILESPECOBJECTHELPER_HH
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