QPDF_Dictionary.hh
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#ifndef QPDF_DICTIONARY_HH
#define QPDF_DICTIONARY_HH
#include <qpdf/QPDFValue.hh>
#include <map>
#include <set>
#include <qpdf/QPDFObjectHandle.hh>
class QPDF_Dictionary: public QPDFValue
{
public:
~QPDF_Dictionary() override = default;
static std::shared_ptr<QPDFObject> create(std::map<std::string, QPDFObjectHandle> const& items);
static std::shared_ptr<QPDFObject> create(std::map<std::string, QPDFObjectHandle>&& items);
std::shared_ptr<QPDFObject> copy(bool shallow = false) override;
std::string unparse() override;
void writeJSON(int json_version, JSON::Writer& p) override;
void disconnect() override;
// hasKey() and getKeys() treat keys with null values as if they aren't there. getKey() returns
// null for the value of a non-existent key. This is as per the PDF spec.
bool hasKey(std::string const&);
QPDFObjectHandle getKey(std::string const&);
std::set<std::string> getKeys();
std::map<std::string, QPDFObjectHandle> const& getAsMap() const;
// If value is null, remove key; otherwise, replace the value of key, adding it if it does not
// exist.
void replaceKey(std::string const& key, QPDFObjectHandle value);
// Remove key, doing nothing if key does not exist
void removeKey(std::string const& key);
private:
QPDF_Dictionary(std::map<std::string, QPDFObjectHandle> const& items);
QPDF_Dictionary(std::map<std::string, QPDFObjectHandle>&& items);
std::map<std::string, QPDFObjectHandle> items;
};
#endif // QPDF_DICTIONARY_HH