INTEGRATION: CWS insight01 (1.3.138); FILE MERGED

2004/05/28 10:01:23 oj 1.3.138.2: RESYNC: (1.3-1.4); FILE MERGED
2003/12/17 11:23:53 oj 1.3.138.1: #111075# new helper to iterate through a sequence

1 files changed, 86 insertions, 2 deletions

diff --git a/comphelper/inc/comphelper/sequence.hxx b/comphelper/inc/comphelper/sequence.hxx
index 281469606a76..51e652476016 100644
--- a/comphelper/inc/comphelper/sequence.hxx
+++ b/comphelper/inc/comphelper/sequence.hxx
@@ -2,9 +2,9 @@
  *
  *  $RCSfile: sequence.hxx,v $
  *
- *  $Revision: 1.5 $
+ *  $Revision: 1.6 $
  *
- *  last change: $Author: kz $ $Date: 2004-07-30 15:34:56 $
+ *  last change: $Author: hr $ $Date: 2004-08-02 17:51:14 $
  *
  *  The Contents of this file are made available subject to the terms of
  *  either of the following licenses
@@ -152,6 +152,90 @@ namespace comphelper
         _rSeq.realloc(nLength-1);
     }
 
+    //=====================================================================
+    //= iterating through sequences
+    //=====================================================================
+    class SAL_NO_VTABLE IIterator
+    {
+    public:
+        virtual sal_Bool hasMoreElements() const = 0;
+        virtual ::com::sun::star::uno::Any  nextElement() = 0;
+    };
+    /** a helper class for iterating through a sequence
+    */
+    template <class TYPE>
+    class OSequenceIterator : public IIterator
+    {
+        const TYPE* m_pElements;
+        sal_Int32   m_nLen;
+        const TYPE* m_pCurrent;
+
+    public:
+        /** contrcuct a sequence iterator from a sequence
+        */
+        OSequenceIterator(const ::com::sun::star::uno::Sequence< TYPE >& _rSeq);
+        /** contrcuct a sequence iterator from a Any containing a sequence
+        */
+        OSequenceIterator(const ::com::sun::star::uno::Any& _rSequenceAny);
+
+        virtual sal_Bool hasMoreElements() const;
+        virtual ::com::sun::star::uno::Any  nextElement();
+
+    protected:
+        void construct(const ::com::sun::star::uno::Sequence< TYPE >& _rSeq);
+    };
+
+    //---------------------------------------------------------------------
+    template <class TYPE>
+    OSequenceIterator<TYPE>::OSequenceIterator(const ::com::sun::star::uno::Sequence< TYPE >& _rSeq)
+        :m_pElements(NULL)
+        ,m_nLen(0)
+        ,m_pCurrent(NULL)
+    {
+        construct(_rSeq);
+    }
+
+    //---------------------------------------------------------------------
+    template <class TYPE>
+    OSequenceIterator<TYPE>::OSequenceIterator(const ::com::sun::star::uno::Any& _rSequenceAny)
+        :m_pElements(NULL)
+        ,m_nLen(0)
+        ,m_pCurrent(NULL)
+    {
+        ::com::sun::star::uno::Sequence< TYPE > aContainer;
+    #ifdef DBG_UTIL
+        sal_Bool bSuccess =
+    #endif
+        _rSequenceAny >>= aContainer;
+    #ifdef DBG_UTIL
+        OSL_ENSURE(bSuccess, "OSequenceIterator::OSequenceIterator: invalid Any!");
+    #endif
+        construct(aContainer);
+    }
+
+    //---------------------------------------------------------------------
+    template <class TYPE>
+    void OSequenceIterator<TYPE>::construct(const ::com::sun::star::uno::Sequence< TYPE >& _rSeq)
+    {
+        m_pElements = _rSeq.getConstArray();
+        m_nLen = _rSeq.getLength();
+        m_pCurrent = m_pElements;
+    }
+
+    //---------------------------------------------------------------------
+    template <class TYPE>
+    sal_Bool OSequenceIterator<TYPE>::hasMoreElements() const
+    {
+        return m_pCurrent - m_pElements < m_nLen;
+    }
+
+    //---------------------------------------------------------------------
+    template <class TYPE>
+    ::com::sun::star::uno::Any OSequenceIterator<TYPE>::nextElement()
+    {
+        return ::com::sun::star::uno::makeAny(*m_pCurrent++);
+    }
+
     //-------------------------------------------------------------------------
     /** Copy from a plain C/C++ array into a Sequence