include/vrvCoreQt/DtPtrQList.h

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/*******************************************************************************
** Copyright (c) 2008 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/
/*******************************************************************************
** $RCSfile: DtQList.h,v $ $Revision: 1.2 $ $State: Exp $
*******************************************************************************/


#pragma once
#include <QtCore/QList>


template <typename T>
class DtPtrQList : public QList<T>
{  

public:

   DtPtrQList<T>() : QList<T>(), myAutoDelete(false) {};

   DtPtrQList<T>(const DtPtrQList<T>& orig) : QList<T>(orig), 
      myAutoDelete(orig.myAutoDelete) {};

   virtual ~DtPtrQList<T>() { clear(); };

   void clear() 
   { 
      if (myAutoDelete) 
      { 
         typename DtPtrQList<T>::iterator it = this->begin(); 
         while (it != this->end()) 
         { 
            delete *it; 
            ++it; 
         } 
      } 
      QList<T>::clear(); 
   };

   void setAutoDelete(bool b) 
   { 
      myAutoDelete = b; 
   };

   bool autoDelete() const 
   { 
      return myAutoDelete; 
   };

   typename DtPtrQList<T>::iterator erase(typename DtPtrQList<T>::iterator pos) 
   { 
      T val = *pos; 
      typename DtPtrQList<T>::iterator retVal = QList<T>::erase(pos); 
      if (myAutoDelete) 
      {
         delete val;
      }   
      return retVal; 
   };

   typename DtPtrQList<T>::iterator erase(
      typename DtPtrQList<T>::iterator first, 
      typename DtPtrQList<T>::iterator last) 
   { 
      while (first != last) 
      {
         erase(first++); 
      }
      return last; 
   };

   int findRef(T t) const 
   { 
      return find(t); 
   };

   int find(T t) const { return indexOf(t); };

   void removeRef(T t) { remove(t); };

   void remove(T t) 
   { 
      typename DtPtrQList<T>::iterator it = this->begin();  
      while (it != this->end()) 
      { 
         if (*it == t) 
         { 
            erase(it); 
            break; 
         } 
         ++it; 
      }
   };

   void removeAt(int i) 
   { 
      T val = this->at(i); 
      QList<T>::removeAt(i); 
      if (myAutoDelete) 
      {
         delete val; 
      }
   };

protected:
   bool  myAutoDelete;
};