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108 lines
3.4 KiB
C++
108 lines
3.4 KiB
C++
#pragma once
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#include "cafPdmObject.h"
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#include "cafPdmChildArrayField.h"
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#include <QXmlStreamWriter>
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namespace caf
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{
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class PdmReferenceHelper;
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//==================================================================================================
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/// The PdmObjectGroup serves as a container of unknown PdmObjects
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//==================================================================================================
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class PdmObjectGroup : public PdmObject
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{
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CAF_PDM_HEADER_INIT;
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public:
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PdmObjectGroup();
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~PdmObjectGroup();
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std::vector<PdmObjectHandle*> objects;
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void deleteObjects();
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void addObject(PdmObjectHandle * obj);
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template <typename T>
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void objectsByType(std::vector<PdmPointer<T> >* typedObjects ) const
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{
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if (!typedObjects) return;
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size_t it;
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for (it = 0; it != objects.size(); ++it)
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{
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T* obj = dynamic_cast<T*>(objects[it]);
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if (obj) typedObjects->push_back(obj);
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}
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}
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template <typename T>
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void createCopyByType(std::vector<PdmPointer<T> >* copyOfTypedObjects, PdmObjectFactory* objectFactory) const;
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};
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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template <typename T>
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void PdmObjectGroup::createCopyByType(std::vector<PdmPointer<T> >* copyOfTypedObjects, PdmObjectFactory* objectFactory) const
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{
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std::vector<PdmPointer<T> > sourceTypedObjects;
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objectsByType(&sourceTypedObjects);
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QString encodedXml;
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{
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// Write original objects to XML file
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QXmlStreamWriter xmlStream(&encodedXml);
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xmlStream.setAutoFormatting(true);
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xmlStream.writeStartElement("", "PdmObjects");
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for (size_t i = 0; i < sourceTypedObjects.size(); i++)
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{
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PdmXmlObjectHandle* xmlObjHandle = sourceTypedObjects[i]->capability<PdmXmlObjectHandle>();
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assert(xmlObjHandle);
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QString className = xmlObjHandle->classKeyword();
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xmlStream.writeStartElement("", className);
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xmlObjHandle->writeFields(xmlStream);
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xmlStream.writeEndElement();
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}
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xmlStream.writeEndElement();
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}
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// Read back XML into object group, factory methods will be called that will create new objects
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PdmObjectGroup destinationObjectGroup;
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QXmlStreamReader xmlStream(encodedXml);
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PdmXmlObjectHandle* xmlObjHandle = destinationObjectGroup.capability<PdmXmlObjectHandle>();
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assert(xmlObjHandle);
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xmlObjHandle->readFields(xmlStream, objectFactory);
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for (size_t it = 0; it < destinationObjectGroup.objects.size(); it++)
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{
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T* obj = dynamic_cast<T*>(destinationObjectGroup.objects[it]);
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if (obj) copyOfTypedObjects->push_back(obj);
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}
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}
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//==================================================================================================
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/// The PdmObjectCollection serves as a container of unknown PdmObjects stored in a PdmChildArrayField
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//==================================================================================================
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class PdmObjectCollection : public PdmObject
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{
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CAF_PDM_HEADER_INIT;
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public:
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PdmObjectCollection();
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~PdmObjectCollection();
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caf::PdmChildArrayField<PdmObjectHandle*> objects;
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};
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} // End of namespace caf
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