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@ -85,6 +85,87 @@ namespace MWWorld
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///< Return a 0-pointer, if Ptr is empty; return a non-0-pointer, if Ptr is not empty
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};
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/// \brief Pointer to a const LiveCellRef
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/// @note a Ptr can be implicitely converted to a ConstPtr, but you can not convert a ConstPtr to a Ptr.
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class ConstPtr
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{
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public:
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const MWWorld::LiveCellRefBase *mRef;
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const CellStore *mCell;
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const ContainerStore *mContainerStore;
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public:
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ConstPtr(const MWWorld::LiveCellRefBase *liveCellRef=0, const CellStore *cell=0)
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: mRef(liveCellRef), mCell(cell), mContainerStore(0)
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{
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}
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ConstPtr(const MWWorld::Ptr& ptr)
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: mRef(ptr.mRef), mCell(ptr.mCell), mContainerStore(ptr.mContainerStore)
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{
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}
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bool isEmpty() const
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{
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return mRef == 0;
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}
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const std::string& getTypeName() const;
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const Class& getClass() const
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{
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if(mRef != 0)
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return *(mRef->mClass);
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throw std::runtime_error("Cannot get class of an empty object");
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}
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template<typename T>
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const MWWorld::LiveCellRef<T> *get() const
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{
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const MWWorld::LiveCellRef<T> *ref = dynamic_cast<const MWWorld::LiveCellRef<T>*>(mRef);
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if(ref) return ref;
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std::stringstream str;
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str<< "Bad LiveCellRef cast to "<<typeid(T).name()<<" from ";
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if(mRef != 0) str<< getTypeName();
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else str<< "an empty object";
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throw std::runtime_error(str.str());
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}
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const MWWorld::LiveCellRefBase *getBase() const;
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const MWWorld::CellRef& getCellRef() const
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{
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assert(mRef);
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return mRef->mRef;
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}
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const RefData& getRefData() const
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{
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assert(mRef);
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return mRef->mData;
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}
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const CellStore *getCell() const
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{
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assert(mCell);
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return mCell;
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}
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bool isInCell() const
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{
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return (mContainerStore == 0) && (mCell != 0);
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}
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const ContainerStore *getContainerStore() const;
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///< May return a 0-pointer, if reference is not in a container.
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operator const void *();
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///< Return a 0-pointer, if Ptr is empty; return a non-0-pointer, if Ptr is not empty
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};
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inline bool operator== (const Ptr& left, const Ptr& right)
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{
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return left.mRef==right.mRef;
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