cb15a8676b
remove deprecated methods move CreateRequest from pvAccessCPP to pvDataCPP move pvCopy from pvDatabaseCPP to pvDataCPP
111 lines
2.6 KiB
C++
111 lines
2.6 KiB
C++
/* pvEnumerated.cpp */
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/**
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* Copyright - See the COPYRIGHT that is included with this distribution.
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* EPICS pvData is distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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*/
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/**
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* @author mrk
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*/
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#include <string>
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#include <stdexcept>
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#define epicsExportSharedSymbols
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#include <pv/pvType.h>
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#include <pv/pvIntrospect.h>
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#include <pv/pvData.h>
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#include <pv/pvEnumerated.h>
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namespace epics { namespace pvData {
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using std::tr1::static_pointer_cast;
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String PVEnumerated::notFound("No enumerated structure found");
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String PVEnumerated::notAttached("Not attached to an enumerated structure");
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bool PVEnumerated::attach(PVFieldPtr const & pvField)
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{
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if(pvField->getField()->getType()!=structure) return false;
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PVStructurePtr pvStructure = static_pointer_cast<PVStructure>(pvField);
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pvIndex = pvStructure->getIntField("index");
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if(pvIndex.get()==NULL) return false;
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PVScalarArrayPtr pvScalarArray = pvStructure->getScalarArrayField(
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"choices",pvString);
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if(pvScalarArray.get()==NULL) {
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pvIndex.reset();
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return false;
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}
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pvChoices = static_pointer_cast<PVStringArray>(pvScalarArray);
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return true;
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}
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void PVEnumerated::detach()
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{
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pvIndex.reset();
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pvChoices.reset();
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}
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bool PVEnumerated::isAttached() {
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if(pvIndex.get()==NULL) return false;
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return true;
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}
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bool PVEnumerated::setIndex(int32 index)
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{
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if(pvIndex.get()==NULL ) {
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throw std::logic_error(notAttached);
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}
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if(pvIndex->isImmutable()) return false;
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pvIndex->put(index);
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return true;
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}
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int32 PVEnumerated::getIndex()
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{
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if(pvIndex.get()==NULL ) {
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throw std::logic_error(notAttached);
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}
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return pvIndex->get();
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}
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String PVEnumerated::getChoice()
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{
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if(pvIndex.get()==NULL ) {
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throw std::logic_error(notAttached);
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}
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int index = pvIndex->get();
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const PVStringArray::const_svector& data(pvChoices->view());
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return data[index];
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}
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bool PVEnumerated::choicesMutable()
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{
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if(pvIndex.get()==NULL ) {
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throw std::logic_error(notAttached);
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}
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return pvChoices->isImmutable();
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}
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int32 PVEnumerated::getNumberChoices()
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{
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if(pvIndex.get()==NULL ) {
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throw std::logic_error(notAttached);
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}
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return static_cast<int32>(pvChoices->getLength());
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}
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bool PVEnumerated:: setChoices(const StringArray & choices)
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{
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if(pvIndex.get()==NULL ) {
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throw std::logic_error(notAttached);
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}
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if(pvChoices->isImmutable()) return false;
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PVStringArray::svector data(choices.size());
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std::copy(choices.begin(), choices.end(), data.begin());
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pvChoices->replace(freeze(data));
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return true;
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}
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}}
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