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