QPDFFormFieldObjectHelper.cc
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#include <qpdf/QPDFFormFieldObjectHelper.hh>
#include <qpdf/QTC.hh>
QPDFFormFieldObjectHelper::Members::~Members()
{
}
QPDFFormFieldObjectHelper::Members::Members()
{
}
QPDFFormFieldObjectHelper::QPDFFormFieldObjectHelper(QPDFObjectHandle oh) :
QPDFObjectHelper(oh),
m(new Members())
{
}
QPDFFormFieldObjectHelper::QPDFFormFieldObjectHelper() :
QPDFObjectHelper(QPDFObjectHandle::newNull()),
m(new Members())
{
}
bool
QPDFFormFieldObjectHelper::isNull()
{
return this->oh.isNull();
}
QPDFFormFieldObjectHelper
QPDFFormFieldObjectHelper::getParent()
{
return this->oh.getKey("/Parent"); // may be null
}
QPDFObjectHandle
QPDFFormFieldObjectHelper::getInheritableFieldValue(std::string const& name)
{
QPDFObjectHandle node = this->oh;
QPDFObjectHandle result(node.getKey(name));
std::set<QPDFObjGen> seen;
while (result.isNull() && node.hasKey("/Parent"))
{
seen.insert(node.getObjGen());
node = node.getKey("/Parent");
if (seen.count(node.getObjGen()))
{
break;
}
result = node.getKey(name);
if (! result.isNull())
{
QTC::TC("qpdf", "QPDFFormFieldObjectHelper non-trivial inheritance");
}
}
return result;
}
std::string
QPDFFormFieldObjectHelper::getInheritableFieldValueAsString(
std::string const& name)
{
QPDFObjectHandle fv = getInheritableFieldValue(name);
std::string result;
if (fv.isString())
{
result = fv.getUTF8Value();
}
return result;
}
std::string
QPDFFormFieldObjectHelper::getInheritableFieldValueAsName(
std::string const& name)
{
QPDFObjectHandle fv = getInheritableFieldValue(name);
std::string result;
if (fv.isName())
{
result = fv.getName();
}
return result;
}
std::string
QPDFFormFieldObjectHelper::getFieldType()
{
return getInheritableFieldValueAsName("/FT");
}
std::string
QPDFFormFieldObjectHelper::getFullyQualifiedName()
{
std::string result;
QPDFObjectHandle node = this->oh;
std::set<QPDFObjGen> seen;
while ((! node.isNull()) && (seen.count(node.getObjGen()) == 0))
{
if (node.getKey("/T").isString())
{
if (! result.empty())
{
QTC::TC("qpdf", "QPDFFormFieldObjectHelper non-trivial qualified name");
result = "." + result;
}
result = node.getKey("/T").getUTF8Value() + result;
}
seen.insert(node.getObjGen());
node = node.getKey("/Parent");
}
return result;
}
std::string
QPDFFormFieldObjectHelper::getPartialName()
{
std::string result;
if (this->oh.getKey("/T").isString())
{
result = this->oh.getKey("/T").getUTF8Value();
}
return result;
}
std::string
QPDFFormFieldObjectHelper::getAlternativeName()
{
if (this->oh.getKey("/TU").isString())
{
QTC::TC("qpdf", "QPDFFormFieldObjectHelper TU present");
return this->oh.getKey("/TU").getUTF8Value();
}
QTC::TC("qpdf", "QPDFFormFieldObjectHelper TU absent");
return getFullyQualifiedName();
}
std::string
QPDFFormFieldObjectHelper::getMappingName()
{
if (this->oh.getKey("/TM").isString())
{
QTC::TC("qpdf", "QPDFFormFieldObjectHelper TM present");
return this->oh.getKey("/TM").getUTF8Value();
}
QTC::TC("qpdf", "QPDFFormFieldObjectHelper TM absent");
return getAlternativeName();
}
QPDFObjectHandle
QPDFFormFieldObjectHelper::getValue()
{
return getInheritableFieldValue("/V");
}
std::string
QPDFFormFieldObjectHelper::getValueAsString()
{
return getInheritableFieldValueAsString("/V");
}
QPDFObjectHandle
QPDFFormFieldObjectHelper::getDefaultValue()
{
return getInheritableFieldValue("/DV");
}
std::string
QPDFFormFieldObjectHelper::getDefaultValueAsString()
{
return getInheritableFieldValueAsString("/DV");
}
std::string
QPDFFormFieldObjectHelper::getDefaultAppearance()
{
return getInheritableFieldValueAsString("/DA");
}
int
QPDFFormFieldObjectHelper::getQuadding()
{
int result = 0;
QPDFObjectHandle fv = getInheritableFieldValue("/Q");
if (fv.isInteger())
{
QTC::TC("qpdf", "QPDFFormFieldObjectHelper Q present");
result = static_cast<int>(fv.getIntValue());
}
return result;
}