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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 QPDFANNOTATIONOBJECTHELPER_HH
#define QPDFANNOTATIONOBJECTHELPER_HH
#include <qpdf/QPDFObjectHelper.hh>
#include <qpdf/DLL.h>
class QPDFAnnotationObjectHelper: public QPDFObjectHelper
{
public:
QPDF_DLL
QPDFAnnotationObjectHelper(QPDFObjectHandle);
// This class provides helper methods for certain types of
// annotations. At its introduction, it only supports Widget
// annotations, but other types of annotations may be supported in
// the future. For additional information about interactive forms,
// please see the comments at the top of
// QPDFAcroFormDocumentHelper.hh.
// Return the subtype of the annotation as a string (e.g.
// "/Widget"). Returns the empty string if the subtype (which is
// required by the spec) is missing.
QPDF_DLL
std::string getSubtype();
QPDF_DLL
QPDFObjectHandle::Rectangle getRect();
QPDF_DLL
QPDFObjectHandle getAppearanceDictionary();
// Return the appearance state as given in "/AS", or the empty
// string if none is given.
QPDF_DLL
std::string getAppearanceState();
// Return a specific stream. "which" may be one of "/N", "/R", or
// "/D" to indicate the normal, rollover, or down appearance
// stream. (Any value may be passed to "which"; if an appearance
// stream of that name exists, it will be returned.) If the value
// associated with "which" in the appearance dictionary is a
// subdictionary, an appearance state may be specified to select
// which appearance stream is desired. If not specified, the
// appearance state in "/AS" will used.
QPDF_DLL
QPDFObjectHandle getAppearanceStream(std::string const& which,
std::string const& state = "");
private:
class Members
{
friend class QPDFPageObjectHelper;
public:
QPDF_DLL
~Members();
private:
Members();
Members(Members const&);
};
PointerHolder<Members> m;
};
#endif // QPDFANNOTATIONOBJECTHELPER_HH
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