QPDFFileSpecObjectHelper.cc
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#include <qpdf/QPDFFileSpecObjectHelper.hh>
#include <qpdf/QPDF.hh>
#include <qpdf/QTC.hh>
#include <qpdf/QUtil.hh>
#include <string>
#include <vector>
QPDFFileSpecObjectHelper::QPDFFileSpecObjectHelper(QPDFObjectHandle oh) :
QPDFObjectHelper(oh)
{
if (!oh.isDictionary()) {
oh.warnIfPossible("Embedded file object is not a dictionary");
return;
}
if (!oh.isDictionaryOfType("/Filespec")) {
oh.warnIfPossible("Embedded file object's type is not /Filespec");
}
}
static std::vector<std::string> name_keys = {"/UF", "/F", "/Unix", "/DOS", "/Mac"};
std::string
QPDFFileSpecObjectHelper::getDescription()
{
std::string result;
auto desc = oh().getKey("/Desc");
if (desc.isString()) {
result = desc.getUTF8Value();
}
return result;
}
std::string
QPDFFileSpecObjectHelper::getFilename()
{
for (auto const& i: name_keys) {
auto k = oh().getKey(i);
if (k.isString()) {
return k.getUTF8Value();
}
}
return "";
}
std::map<std::string, std::string>
QPDFFileSpecObjectHelper::getFilenames()
{
std::map<std::string, std::string> result;
for (auto const& i: name_keys) {
auto k = oh().getKey(i);
if (k.isString()) {
result[i] = k.getUTF8Value();
}
}
return result;
}
QPDFObjectHandle
QPDFFileSpecObjectHelper::getEmbeddedFileStream(std::string const& key)
{
auto ef = oh().getKey("/EF");
if (!ef.isDictionary()) {
return QPDFObjectHandle::newNull();
}
if (!key.empty()) {
return ef.getKey(key);
}
for (auto const& i: name_keys) {
auto k = ef.getKey(i);
if (k.isStream()) {
return k;
}
}
return QPDFObjectHandle::newNull();
}
QPDFObjectHandle
QPDFFileSpecObjectHelper::getEmbeddedFileStreams()
{
return oh().getKey("/EF");
}
QPDFFileSpecObjectHelper
QPDFFileSpecObjectHelper::createFileSpec(
QPDF& qpdf, std::string const& filename, std::string const& fullpath)
{
return createFileSpec(
qpdf,
filename,
QPDFEFStreamObjectHelper::createEFStream(qpdf, QUtil::file_provider(fullpath)));
}
QPDFFileSpecObjectHelper
QPDFFileSpecObjectHelper::createFileSpec(
QPDF& qpdf, std::string const& filename, QPDFEFStreamObjectHelper efsoh)
{
auto oh = qpdf.makeIndirectObject(QPDFObjectHandle::newDictionary());
oh.replaceKey("/Type", QPDFObjectHandle::newName("/Filespec"));
QPDFFileSpecObjectHelper result(oh);
result.setFilename(filename);
auto ef = QPDFObjectHandle::newDictionary();
ef.replaceKey("/F", efsoh.getObjectHandle());
ef.replaceKey("/UF", efsoh.getObjectHandle());
oh.replaceKey("/EF", ef);
return result;
}
QPDFFileSpecObjectHelper&
QPDFFileSpecObjectHelper::setDescription(std::string const& desc)
{
oh().replaceKey("/Desc", QPDFObjectHandle::newUnicodeString(desc));
return *this;
}
QPDFFileSpecObjectHelper&
QPDFFileSpecObjectHelper::setFilename(
std::string const& unicode_name, std::string const& compat_name)
{
auto uf = QPDFObjectHandle::newUnicodeString(unicode_name);
oh().replaceKey("/UF", uf);
if (compat_name.empty()) {
QTC::TC("qpdf", "QPDFFileSpecObjectHelper empty compat_name");
oh().replaceKey("/F", uf);
} else {
QTC::TC("qpdf", "QPDFFileSpecObjectHelper non-empty compat_name");
oh().replaceKey("/F", QPDFObjectHandle::newString(compat_name));
}
return *this;
}