/usr/include/opencascade/NIS_ObjectsIterator.hxx is in libopencascade-visualization-dev 6.5.0.dfsg-2build1.
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// Created: 02.09.07 23:47
// Author: Alexander GRIGORIEV
// Copyright: Open Cascade 2007
#ifndef NIS_ObjectsIterator_HeaderFile
#define NIS_ObjectsIterator_HeaderFile
#include <NCollection_Vector.hxx>
#include <Handle_NIS_InteractiveObject.hxx>
class Handle_NIS_InteractiveContext;
/**
* Iterator of objects contained in a NIS_InteractiveContext instance. The
* iteration is always in the ascending sense of object ID. Examples:
* @code
* // Erase all objects in the Context
* NIS_ObjectsIterator anIter (myContext);
* for (; anIter.More(); anIter.Next())
* myContext->Erase (anIter.Value(), Standard_False);
*
* // Set object attributes to their IDs (hardly useful outside the example)
* anIter.Initialize (myContext);
* Handle(NIS_InteractiveObject) anObj;
* while (!(anObj = anIter.Value().IsNull())) {
* anObj->SetAttribute (static_cast<void *> (anObj->ID()));
* anIter.Next();
* }
* @endcode
*/
class NIS_ObjectsIterator
{
public:
// ---------- PUBLIC METHODS ----------
/**
* Empty Constructor.
*/
inline NIS_ObjectsIterator () {}
/**
* Constructor.
* @param theCtx
* Interactive context that is to be iterated for all objects.
*/
inline NIS_ObjectsIterator (const Handle_NIS_InteractiveContext& theCtx)
{ Initialize (theCtx); }
/**
* Reset the Iterator to start the iterations of objects.
* @param theCtx
* Interactive context that is to be iterated for all objects.
*/
Standard_EXPORT void Initialize
(const Handle_NIS_InteractiveContext& theCtx);
/**
* Query if the Iterator has an object (not yet finished the iteration
* process).
*/
inline Standard_Boolean More () const
{ return myIter.More(); }
/**
* Returns the current object at the iteration pointer. If the iteration is
* over (More() == False) this method returns NULL Handle.
*/
inline Handle(NIS_InteractiveObject)
Value () const
{ if (More()) return myIter.Value(); return NULL; }
/**
* Step forward to the next valid InteractiveObject instance.
*/
Standard_EXPORT void Next ();
protected:
// ---------- PROTECTED FIELDS ----------
NCollection_Vector <Handle_NIS_InteractiveObject>::Iterator myIter;
};
#endif
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