2
1
mirror of https://github.com/qpdf/qpdf.git synced 2024-12-23 03:18:59 +00:00
qpdf/libqpdf/QPDF_Array.cc
Jay Berkenbilt d0e99f195a More robust handling of type errors
Give objects descriptions and context so it is possible to issue
warnings instead of fatal errors for attempts to access objects of the
wrong type.
2018-02-18 21:06:27 -05:00

118 lines
2.2 KiB
C++

#include <qpdf/QPDF_Array.hh>
#include <qpdf/QUtil.hh>
#include <stdexcept>
QPDF_Array::QPDF_Array(std::vector<QPDFObjectHandle> const& items) :
items(items)
{
}
QPDF_Array::~QPDF_Array()
{
}
void
QPDF_Array::releaseResolved()
{
for (std::vector<QPDFObjectHandle>::iterator iter = this->items.begin();
iter != this->items.end(); ++iter)
{
QPDFObjectHandle::ReleaseResolver::releaseResolved(*iter);
}
}
std::string
QPDF_Array::unparse()
{
std::string result = "[ ";
for (std::vector<QPDFObjectHandle>::iterator iter = this->items.begin();
iter != this->items.end(); ++iter)
{
result += (*iter).unparse();
result += " ";
}
result += "]";
return result;
}
QPDFObject::object_type_e
QPDF_Array::getTypeCode() const
{
return QPDFObject::ot_array;
}
char const*
QPDF_Array::getTypeName() const
{
return "array";
}
void
QPDF_Array::setDescription(QPDF* qpdf, std::string const& description)
{
this->QPDFObject::setDescription(qpdf, description);
}
int
QPDF_Array::getNItems() const
{
return this->items.size();
}
QPDFObjectHandle
QPDF_Array::getItem(int n) const
{
if ((n < 0) || (n >= static_cast<int>(this->items.size())))
{
throw std::logic_error(
"INTERNAL ERROR: bounds error accessing QPDF_Array element");
}
return this->items.at(n);
}
std::vector<QPDFObjectHandle> const&
QPDF_Array::getAsVector() const
{
return this->items;
}
void
QPDF_Array::setItem(int n, QPDFObjectHandle const& oh)
{
// Call getItem for bounds checking
(void) getItem(n);
this->items.at(n) = oh;
}
void
QPDF_Array::setFromVector(std::vector<QPDFObjectHandle> const& items)
{
this->items = items;
}
void
QPDF_Array::insertItem(int at, QPDFObjectHandle const& item)
{
// As special case, also allow insert beyond the end
if ((at < 0) || (at > static_cast<int>(this->items.size())))
{
throw std::logic_error(
"INTERNAL ERROR: bounds error accessing QPDF_Array element");
}
this->items.insert(this->items.begin() + at, item);
}
void
QPDF_Array::appendItem(QPDFObjectHandle const& item)
{
this->items.push_back(item);
}
void
QPDF_Array::eraseItem(int at)
{
// Call getItem for bounds checking
(void) getItem(at);
this->items.erase(this->items.begin() + at);
}