/src/qpdf/libqpdf/QPDFOutlineObjectHelper.cc
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1 | | #include <qpdf/QPDFOutlineObjectHelper.hh> |
2 | | |
3 | | #include <qpdf/QPDFOutlineDocumentHelper.hh> |
4 | | #include <qpdf/QTC.hh> |
5 | | |
6 | | QPDFOutlineObjectHelper::Members::Members(QPDFOutlineDocumentHelper& dh) : |
7 | 3.80k | dh(dh) |
8 | 3.80k | { |
9 | 3.80k | } |
10 | | |
11 | | QPDFOutlineObjectHelper::QPDFOutlineObjectHelper( |
12 | | QPDFObjectHandle a_oh, QPDFOutlineDocumentHelper& dh, int depth) : |
13 | 3.80k | QPDFObjectHelper(a_oh), |
14 | 3.80k | m(new Members(dh)) |
15 | 3.80k | { |
16 | 3.80k | if (depth > 50) { |
17 | | // Not exercised in test suite, but was tested manually by temporarily changing max depth |
18 | | // to 1. |
19 | 0 | return; |
20 | 0 | } |
21 | 3.80k | if (QPDFOutlineDocumentHelper::Accessor::checkSeen(m->dh, a_oh.getObjGen())) { |
22 | 1.44k | QTC::TC("qpdf", "QPDFOutlineObjectHelper loop"); |
23 | 1.44k | return; |
24 | 1.44k | } |
25 | | |
26 | 2.35k | QPDFObjGen::set children; |
27 | 2.35k | QPDFObjectHandle cur = a_oh.getKey("/First"); |
28 | 5.26k | while (!cur.isNull() && cur.isIndirect() && children.add(cur)) { |
29 | 2.90k | QPDFOutlineObjectHelper new_ooh(cur, dh, 1 + depth); |
30 | 2.90k | new_ooh.m->parent = std::make_shared<QPDFOutlineObjectHelper>(*this); |
31 | 2.90k | m->kids.push_back(new_ooh); |
32 | 2.90k | cur = cur.getKey("/Next"); |
33 | 2.90k | } |
34 | 2.35k | } |
35 | | |
36 | | std::shared_ptr<QPDFOutlineObjectHelper> |
37 | | QPDFOutlineObjectHelper::getParent() |
38 | 0 | { |
39 | 0 | return m->parent; |
40 | 0 | } |
41 | | |
42 | | std::vector<QPDFOutlineObjectHelper> |
43 | | QPDFOutlineObjectHelper::getKids() |
44 | 3.60k | { |
45 | 3.60k | return m->kids; |
46 | 3.60k | } |
47 | | |
48 | | QPDFObjectHandle |
49 | | QPDFOutlineObjectHelper::getDest() |
50 | 3.79k | { |
51 | 3.79k | QPDFObjectHandle dest; |
52 | 3.79k | QPDFObjectHandle A; |
53 | 3.79k | if (oh().hasKey("/Dest")) { |
54 | 716 | QTC::TC("qpdf", "QPDFOutlineObjectHelper direct dest"); |
55 | 716 | dest = oh().getKey("/Dest"); |
56 | 3.08k | } else if ( |
57 | 3.08k | (A = oh().getKey("/A")).isDictionary() && A.getKey("/S").isName() && |
58 | 3.08k | (A.getKey("/S").getName() == "/GoTo") && A.hasKey("/D")) { |
59 | 1.18k | QTC::TC("qpdf", "QPDFOutlineObjectHelper action dest"); |
60 | 1.18k | dest = A.getKey("/D"); |
61 | 1.18k | } |
62 | 3.79k | if (!dest) { |
63 | 1.84k | return QPDFObjectHandle::newNull(); |
64 | 1.84k | } |
65 | | |
66 | 1.95k | if (dest.isName() || dest.isString()) { |
67 | 1.28k | QTC::TC("qpdf", "QPDFOutlineObjectHelper named dest"); |
68 | 1.28k | dest = m->dh.resolveNamedDest(dest); |
69 | 1.28k | } |
70 | | |
71 | 1.95k | return dest; |
72 | 3.79k | } |
73 | | |
74 | | QPDFObjectHandle |
75 | | QPDFOutlineObjectHelper::getDestPage() |
76 | 3.79k | { |
77 | 3.79k | QPDFObjectHandle dest = getDest(); |
78 | 3.79k | if ((dest.isArray()) && (dest.getArrayNItems() > 0)) { |
79 | 655 | return dest.getArrayItem(0); |
80 | 655 | } |
81 | 3.14k | return QPDFObjectHandle::newNull(); |
82 | 3.79k | } |
83 | | |
84 | | int |
85 | | QPDFOutlineObjectHelper::getCount() |
86 | 0 | { |
87 | 0 | int count = 0; |
88 | 0 | if (oh().hasKey("/Count")) { |
89 | 0 | count = oh().getKey("/Count").getIntValueAsInt(); |
90 | 0 | } |
91 | 0 | return count; |
92 | 0 | } |
93 | | |
94 | | std::string |
95 | | QPDFOutlineObjectHelper::getTitle() |
96 | 0 | { |
97 | 0 | std::string result; |
98 | 0 | if (oh().hasKey("/Title")) { |
99 | 0 | result = oh().getKey("/Title").getUTF8Value(); |
100 | 0 | } |
101 | 0 | return result; |
102 | 0 | } |