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qpdf/libqpdf/QPDFOutlineObjectHelper.cc

118 lines
2.7 KiB
C++

#include <qpdf/QPDFOutlineObjectHelper.hh>
#include <qpdf/QPDFOutlineDocumentHelper.hh>
#include <qpdf/QTC.hh>
QPDFOutlineObjectHelper::Members::~Members()
{
}
QPDFOutlineObjectHelper::Members::Members(QPDFOutlineDocumentHelper& dh) :
dh(dh)
{
}
QPDFOutlineObjectHelper::QPDFOutlineObjectHelper(
QPDFObjectHandle oh, QPDFOutlineDocumentHelper& dh, int depth) :
QPDFObjectHelper(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(
this->m->dh, this->oh.getObjGen()))
{
QTC::TC("qpdf", "QPDFOutlineObjectHelper loop");
return;
}
QPDFObjectHandle cur = oh.getKey("/First");
while (! cur.isNull())
{
QPDFOutlineObjectHelper new_ooh(cur, dh, 1 + depth);
new_ooh.m->parent = new QPDFOutlineObjectHelper(*this);
this->m->kids.push_back(new_ooh);
cur = cur.getKey("/Next");
}
}
PointerHolder<QPDFOutlineObjectHelper>
QPDFOutlineObjectHelper::getParent()
{
return this->m->parent;
}
std::list<QPDFOutlineObjectHelper>
QPDFOutlineObjectHelper::getKids()
{
return this->m->kids;
}
QPDFObjectHandle
QPDFOutlineObjectHelper::getDest()
{
QPDFObjectHandle dest;
QPDFObjectHandle A;
if (this->oh.hasKey("/Dest"))
{
QTC::TC("qpdf", "QPDFOutlineObjectHelper direct dest");
dest = this->oh.getKey("/Dest");
}
else if ((A = this->oh.getKey("/A")).isDictionary() &&
A.getKey("/S").isName() &&
(A.getKey("/S").getName() == "/GoTo") &&
A.hasKey("/D"))
{
QTC::TC("qpdf", "QPDFOutlineObjectHelper action dest");
dest = A.getKey("/D");
}
if (! dest.isInitialized())
{
dest = QPDFObjectHandle::newNull();
}
if (dest.isName() || dest.isString())
{
QTC::TC("qpdf", "QPDFOutlineObjectHelper named dest");
dest = this->m->dh.resolveNamedDest(dest);
}
return dest;
}
QPDFObjectHandle
QPDFOutlineObjectHelper::getDestPage()
{
QPDFObjectHandle dest = getDest();
if ((dest.isArray()) && (dest.getArrayNItems() > 0))
{
return dest.getArrayItem(0);
}
return QPDFObjectHandle::newNull();
}
int
QPDFOutlineObjectHelper::getCount()
{
int count = 0;
if (this->oh.hasKey("/Count"))
{
count = this->oh.getKey("/Count").getIntValue();
}
return count;
}
std::string
QPDFOutlineObjectHelper::getTitle()
{
std::string result;
if (this->oh.hasKey("/Title"))
{
result = this->oh.getKey("/Title").getUTF8Value();
}
return result;
}