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#include <qpdf/ResourceFinder.hh>
ResourceFinder::ResourceFinder() :
last_name_offset(0)
{
}
void
ResourceFinder::handleObject(QPDFObjectHandle obj, size_t offset, size_t)
{
if (obj.isOperator() && (!this->last_name.empty())) {
static std::map<std::string, std::string> op_to_rtype = {
{"CS", "/ColorSpace"},
{"cs", "/ColorSpace"},
{"gs", "/ExtGState"},
{"Tf", "/Font"},
{"SCN", "/Pattern"},
{"scn", "/Pattern"},
{"BDC", "/Properties"},
{"DP", "/Properties"},
{"sh", "/Shading"},
{"Do", "/XObject"},
};
std::string op = obj.getOperatorValue();
std::string resource_type;
auto iter = op_to_rtype.find(op);
if (iter != op_to_rtype.end()) {
resource_type = iter->second;
}
if (!resource_type.empty()) {
this->names.insert(this->last_name);
this->names_by_resource_type[resource_type][this->last_name].insert(
this->last_name_offset);
}
} else if (obj.isName()) {
this->last_name = obj.getName();
this->last_name_offset = offset;
}
}
void
ResourceFinder::handleEOF()
{
}
std::set<std::string> const&
ResourceFinder::getNames() const
{
return this->names;
}
std::map<std::string, std::map<std::string, std::set<size_t>>> const&
ResourceFinder::getNamesByResourceType() const
{
return this->names_by_resource_type;
}
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