1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
// Copyright (c) 2005-2024 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 QPDFOUTLINEDOCUMENTHELPER_HH
#define QPDFOUTLINEDOCUMENTHELPER_HH
#include <qpdf/QPDF.hh>
#include <qpdf/QPDFDocumentHelper.hh>
#include <qpdf/QPDFNameTreeObjectHelper.hh>
#include <qpdf/QPDFObjGen.hh>
#include <qpdf/QPDFOutlineObjectHelper.hh>
#include <map>
#include <vector>
#include <qpdf/DLL.h>
// This is a document helper for outlines, also known as bookmarks. Outlines are discussed in
// section 12.3.3 of the PDF spec (ISO-32000). With the help of QPDFOutlineObjectHelper, the
// outlines tree is traversed, and a bidirectional map is made between pages and outlines. See also
// QPDFOutlineObjectHelper.
class QPDFOutlineDocumentHelper: public QPDFDocumentHelper
{
public:
QPDF_DLL
QPDFOutlineDocumentHelper(QPDF&);
QPDF_DLL
~QPDFOutlineDocumentHelper() override = default;
QPDF_DLL
bool hasOutlines();
QPDF_DLL
std::vector<QPDFOutlineObjectHelper> getTopLevelOutlines();
// If the name is a name object, look it up in the /Dests key of the document catalog. If the
// name is a string, look it up in the name tree pointed to by the /Dests key of the names
// dictionary.
QPDF_DLL
QPDFObjectHandle resolveNamedDest(QPDFObjectHandle name);
// Return a list outlines that are known to target the specified page.
QPDF_DLL
std::vector<QPDFOutlineObjectHelper> getOutlinesForPage(QPDFObjGen const&);
class Accessor
{
friend class QPDFOutlineObjectHelper;
// ABI: remove QPDF_DLL and pass og by value.
QPDF_DLL
static bool
checkSeen(QPDFOutlineDocumentHelper& dh, QPDFObjGen const& og)
{
return !dh.m->seen.add(og);
}
};
private:
void initializeByPage();
class Members
{
friend class QPDFOutlineDocumentHelper;
public:
QPDF_DLL
~Members() = default;
private:
Members() = default;
Members(Members const&) = delete;
std::vector<QPDFOutlineObjectHelper> outlines;
QPDFObjGen::set seen;
QPDFObjectHandle dest_dict;
std::shared_ptr<QPDFNameTreeObjectHelper> names_dest;
std::map<QPDFObjGen, std::vector<QPDFOutlineObjectHelper>> by_page;
};
std::shared_ptr<Members> m;
};
#endif // QPDFOUTLINEDOCUMENTHELPER_HH
|
