124 lines
2.9 KiB
C++
124 lines
2.9 KiB
C++
/* pvEnumerated.cpp */
|
|
/**
|
|
* Copyright - See the COPYRIGHT that is included with this distribution.
|
|
* EPICS pvData is distributed subject to a Software License Agreement found
|
|
* in file LICENSE that is included with this distribution.
|
|
*/
|
|
/**
|
|
* @author mrk
|
|
*/
|
|
#include <string>
|
|
#include <stdexcept>
|
|
#include <pv/pvType.h>
|
|
#include <pv/pvIntrospect.h>
|
|
#include <pv/pvData.h>
|
|
#include <pv/pvEnumerated.h>
|
|
namespace epics { namespace pvData {
|
|
|
|
using std::tr1::static_pointer_cast;
|
|
|
|
static String notFound("No enumerated structure found");
|
|
static String notAttached("Not attached to an enumerated structure");
|
|
|
|
bool PVEnumerated::attach(PVFieldPtr const & pvField)
|
|
{
|
|
if(pvField->getField()->getType()!=structure) {
|
|
pvField->message(notFound,errorMessage);
|
|
return false;
|
|
}
|
|
PVStructurePtr pvStructure = static_pointer_cast<PVStructure>(pvField);
|
|
pvIndex = pvStructure->getIntField("index");
|
|
if(pvIndex.get()==NULL) {
|
|
pvField->message(notFound,errorMessage);
|
|
return false;
|
|
}
|
|
PVScalarArrayPtr pvScalarArray = pvStructure->getScalarArrayField(
|
|
"choices",pvString);
|
|
if(pvScalarArray.get()==NULL) {
|
|
pvIndex.reset();
|
|
pvField->message(notFound,errorMessage);
|
|
return false;
|
|
}
|
|
pvChoices = static_pointer_cast<PVStringArray>(pvScalarArray);
|
|
return true;
|
|
}
|
|
|
|
void PVEnumerated::detach()
|
|
{
|
|
pvIndex.reset();
|
|
pvChoices.reset();
|
|
}
|
|
|
|
bool PVEnumerated::isAttached() {
|
|
if(pvIndex.get()==NULL) return false;
|
|
return true;
|
|
}
|
|
|
|
bool PVEnumerated::setIndex(int32 index)
|
|
{
|
|
if(pvIndex.get()==NULL ) {
|
|
throw std::logic_error(notAttached);
|
|
}
|
|
if(pvIndex->isImmutable()) return false;
|
|
pvIndex->put(index);
|
|
return true;
|
|
}
|
|
|
|
int32 PVEnumerated::getIndex()
|
|
{
|
|
if(pvIndex.get()==NULL ) {
|
|
throw std::logic_error(notAttached);
|
|
}
|
|
return pvIndex->get();
|
|
}
|
|
|
|
String PVEnumerated::getChoice()
|
|
{
|
|
if(pvIndex.get()==NULL ) {
|
|
throw std::logic_error(notAttached);
|
|
}
|
|
int index = pvIndex->get();
|
|
StringArrayData data;
|
|
pvChoices->get(0,pvChoices->getLength(),data);
|
|
return data.data[index];
|
|
}
|
|
|
|
bool PVEnumerated::choicesMutable()
|
|
{
|
|
if(pvIndex.get()==NULL ) {
|
|
throw std::logic_error(notAttached);
|
|
}
|
|
return pvChoices->isImmutable();
|
|
}
|
|
|
|
StringArray PVEnumerated:: getChoices()
|
|
{
|
|
if(pvIndex.get()==NULL ) {
|
|
throw std::logic_error(notAttached);
|
|
}
|
|
StringArrayData data;
|
|
pvChoices->get(0,pvChoices->getLength(),data);
|
|
return data.data;
|
|
}
|
|
|
|
int32 PVEnumerated::getNumberChoices()
|
|
{
|
|
if(pvIndex.get()==NULL ) {
|
|
throw std::logic_error(notAttached);
|
|
}
|
|
return pvChoices->getLength();
|
|
}
|
|
|
|
bool PVEnumerated:: setChoices(StringArray & choices)
|
|
{
|
|
if(pvIndex.get()==NULL ) {
|
|
throw std::logic_error(notAttached);
|
|
}
|
|
if(pvChoices->isImmutable()) return false;
|
|
pvChoices->put(0,choices.size(),get(choices),0);
|
|
return true;
|
|
}
|
|
|
|
|
|
}}
|