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#include <qpdf/QPDF_Dictionary.hh>
#include <qpdf/QPDF_Null.hh>
#include <qpdf/QPDF_Name.hh>
QPDF_Dictionary::QPDF_Dictionary(
std::map<std::string, QPDFObjectHandle> const& items) :
items(items)
{
}
QPDF_Dictionary::~QPDF_Dictionary()
{
}
void
QPDF_Dictionary::releaseResolved()
{
for (std::map<std::string, QPDFObjectHandle>::iterator iter =
this->items.begin();
iter != this->items.end(); ++iter)
{
QPDFObjectHandle::ReleaseResolver::releaseResolved((*iter).second);
}
}
std::string
QPDF_Dictionary::unparse()
{
std::string result = "<< ";
for (std::map<std::string, QPDFObjectHandle>::iterator iter =
this->items.begin();
iter != this->items.end(); ++iter)
{
result += QPDF_Name::normalizeName((*iter).first) +
" " + (*iter).second.unparse() + " ";
}
result += ">>";
return result;
}
bool
QPDF_Dictionary::hasKey(std::string const& key)
{
return ((this->items.count(key) > 0) &&
(! this->items[key].isNull()));
}
QPDFObjectHandle
QPDF_Dictionary::getKey(std::string const& key)
{
// PDF spec says fetching a non-existent key from a dictionary
// returns the null object.
if (this->items.count(key))
{
// May be a null object
return (*(this->items.find(key))).second;
}
else
{
return QPDFObjectHandle::newNull();
}
}
std::set<std::string>
QPDF_Dictionary::getKeys()
{
std::set<std::string> result;
for (std::map<std::string, QPDFObjectHandle>::const_iterator iter =
this->items.begin();
iter != this->items.end(); ++iter)
{
if (hasKey((*iter).first))
{
result.insert((*iter).first);
}
}
return result;
}
std::map<std::string, QPDFObjectHandle> const&
QPDF_Dictionary::getAsMap() const
{
return this->items;
}
void
QPDF_Dictionary::replaceKey(std::string const& key,
QPDFObjectHandle const& value)
{
// add or replace value
this->items[key] = value;
}
void
QPDF_Dictionary::removeKey(std::string const& key)
{
// no-op if key does not exist
this->items.erase(key);
}
void
QPDF_Dictionary::replaceOrRemoveKey(std::string const& key,
QPDFObjectHandle value)
{
if (value.isNull())
{
removeKey(key);
}
else
{
replaceKey(key, value);
}
}
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