mirror of https://github.com/qpdf/qpdf.git
102 lines
2.5 KiB
C++
102 lines
2.5 KiB
C++
#include <qpdf/QPDFOutlineObjectHelper.hh>
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#include <qpdf/QPDFOutlineDocumentHelper.hh>
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#include <qpdf/QTC.hh>
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QPDFOutlineObjectHelper::Members::Members(QPDFOutlineDocumentHelper& dh) :
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dh(dh)
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{
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}
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QPDFOutlineObjectHelper::QPDFOutlineObjectHelper(
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QPDFObjectHandle oh, QPDFOutlineDocumentHelper& dh, int depth) :
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QPDFObjectHelper(oh),
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m(new Members(dh))
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{
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if (depth > 50) {
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// Not exercised in test suite, but was tested manually by temporarily changing max depth
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// to 1.
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return;
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}
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if (QPDFOutlineDocumentHelper::Accessor::checkSeen(m->dh, this->oh.getObjGen())) {
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QTC::TC("qpdf", "QPDFOutlineObjectHelper loop");
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return;
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}
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QPDFObjectHandle cur = oh.getKey("/First");
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while (!cur.isNull()) {
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QPDFOutlineObjectHelper new_ooh(cur, dh, 1 + depth);
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new_ooh.m->parent = std::make_shared<QPDFOutlineObjectHelper>(*this);
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m->kids.push_back(new_ooh);
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cur = cur.getKey("/Next");
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}
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}
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std::shared_ptr<QPDFOutlineObjectHelper>
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QPDFOutlineObjectHelper::getParent()
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{
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return m->parent;
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}
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std::vector<QPDFOutlineObjectHelper>
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QPDFOutlineObjectHelper::getKids()
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{
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return m->kids;
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}
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QPDFObjectHandle
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QPDFOutlineObjectHelper::getDest()
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{
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QPDFObjectHandle dest;
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QPDFObjectHandle A;
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if (this->oh.hasKey("/Dest")) {
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QTC::TC("qpdf", "QPDFOutlineObjectHelper direct dest");
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dest = this->oh.getKey("/Dest");
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} else if (
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(A = this->oh.getKey("/A")).isDictionary() && A.getKey("/S").isName() &&
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(A.getKey("/S").getName() == "/GoTo") && A.hasKey("/D")) {
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QTC::TC("qpdf", "QPDFOutlineObjectHelper action dest");
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dest = A.getKey("/D");
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}
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if (!dest.isInitialized()) {
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dest = QPDFObjectHandle::newNull();
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}
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if (dest.isName() || dest.isString()) {
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QTC::TC("qpdf", "QPDFOutlineObjectHelper named dest");
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dest = m->dh.resolveNamedDest(dest);
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}
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return dest;
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}
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QPDFObjectHandle
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QPDFOutlineObjectHelper::getDestPage()
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{
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QPDFObjectHandle dest = getDest();
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if ((dest.isArray()) && (dest.getArrayNItems() > 0)) {
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return dest.getArrayItem(0);
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}
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return QPDFObjectHandle::newNull();
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}
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int
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QPDFOutlineObjectHelper::getCount()
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{
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int count = 0;
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if (this->oh.hasKey("/Count")) {
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count = this->oh.getKey("/Count").getIntValueAsInt();
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}
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return count;
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}
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std::string
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QPDFOutlineObjectHelper::getTitle()
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{
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std::string result;
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if (this->oh.hasKey("/Title")) {
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result = this->oh.getKey("/Title").getUTF8Value();
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}
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return result;
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}
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