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#include <qpdf/QPDFOutlineObjectHelper.hh>
#include <qpdf/QPDFObjectHandle_private.hh>
#include <qpdf/QPDFOutlineDocumentHelper.hh>
#include <qpdf/QTC.hh>
QPDFOutlineObjectHelper::Members::Members(QPDFOutlineDocumentHelper& dh) :
dh(dh)
{
}
QPDFOutlineObjectHelper::QPDFOutlineObjectHelper(
QPDFObjectHandle a_oh, QPDFOutlineDocumentHelper& dh, int depth) :
QPDFObjectHelper(a_oh),
m(new Members(dh))
{
if (depth > 50) {
// Not exercised in test suite, but was tested manually by temporarily changing max depth
// to 1.
return;
}
if (QPDFOutlineDocumentHelper::Accessor::checkSeen(m->dh, a_oh.getObjGen())) {
a_oh.warn("Loop detected loop in /Outlines tree");
return;
}
QPDFObjGen::set children;
QPDFObjectHandle cur = a_oh.getKey("/First");
while (!cur.null() && cur.isIndirect()) {
if (!children.add(cur)) {
cur.warn("Loop detected loop in /Outlines tree");
break;
}
QPDFOutlineObjectHelper new_ooh(cur, dh, 1 + depth);
new_ooh.m->parent = std::make_shared<QPDFOutlineObjectHelper>(*this);
m->kids.emplace_back(new_ooh);
cur = cur.getKey("/Next");
}
}
std::shared_ptr<QPDFOutlineObjectHelper>
QPDFOutlineObjectHelper::getParent()
{
return m->parent;
}
std::vector<QPDFOutlineObjectHelper>
QPDFOutlineObjectHelper::getKids()
{
return m->kids;
}
QPDFObjectHandle
QPDFOutlineObjectHelper::getDest()
{
auto dest = get("/Dest");
if (dest.null()) {
auto const& A = get("/A");
if (Name(A["/S"]) == "/GoTo") {
dest = A["/D"];
}
}
if (dest.null()) {
return QPDFObjectHandle::newNull();
}
if (dest.isName() || dest.isString()) {
return m->dh.resolveNamedDest(dest);
}
return dest;
}
QPDFObjectHandle
QPDFOutlineObjectHelper::getDestPage()
{
QPDFObjectHandle dest = getDest();
if (!dest.empty() && dest.isArray()) {
return dest.getArrayItem(0);
}
return QPDFObjectHandle::newNull();
}
int
QPDFOutlineObjectHelper::getCount()
{
int count = 0;
if (oh().hasKey("/Count")) {
count = oh().getKey("/Count").getIntValueAsInt();
}
return count;
}
std::string
QPDFOutlineObjectHelper::getTitle()
{
std::string result;
if (oh().hasKey("/Title")) {
result = oh().getKey("/Title").getUTF8Value();
}
return result;
}
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