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#ifndef _ADDSYMBOL_H_ #define _ADDSYMBOL_H_ #include "operation.h" class Symbol; class Part; /** This operation adds a symbol to a part. In case the operation is undone, the element has to be deleted when the operation-instance is deleted. * For this reason, a _delete element is used... */ class AddSymbol : public Operation { private: Symbol * _symbol; Part * _part; Symbol * _delete; public: /** example: * new AddSymbol(new Expression(0), new Part()); */ AddSymbol(Symbol * o, Part * part); AddSymbol(const AddSymbol&); ~AddSymbol(); void undo(); void redo(); virtual ostream & print(int,ostream&) const; virtual void flush(const char*) const; virtual Element * copy() const; }; #endif
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