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#ifndef _KSTATIC_DELETER_H_ #define _KSTATIC_DELETER_H_ #include <kglobal.h> class KStaticDeleterBase { public: virtual void destructObject() = 0; }; /** * little helper class to clean up static objects that are * held as pointer. * * A typical use is * static KStaticDeleter<MyClass> sd; * * MyClass::self() { * if (!_self) { _self = sd.setObject(new MyClass()); } * } */ template<class type> class KStaticDeleter : public KStaticDeleterBase { public: KStaticDeleter() { deleteit = 0; } /** * sets the object to delete and registers the object to be * deleted to KGlobal. if the given object is 0, the former * registration is unregistred * @param isArray tells the destructor to delete an array instead of an object **/ type *setObject( type *obj, bool isArray = false) { deleteit = obj; array = isArray; if (obj) KGlobal::registerStaticDeleter(this); else KGlobal::unregisterStaticDeleter(this); return obj; } virtual void destructObject() { if (array) delete [] deleteit; else delete deleteit; deleteit = 0; } virtual ~KStaticDeleter() { KGlobal::unregisterStaticDeleter(this); destructObject(); } private: type *deleteit; bool array; }; #endif
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