text: /*=========================================================================
  
    Program:   Visualization Toolkit
    Module:    vtkActorCollection.h
  
    Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
    All rights reserved.
    See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
  
       This software is distributed WITHOUT ANY WARRANTY; without even
       the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
       PURPOSE.  See the above copyright notice for more information.
  
  =========================================================================*/
  // .NAME vtkActorCollection - a list of actors
  // .SECTION Description
  // vtkActorCollection represents and provides methods to manipulate a list of
  // actors (i.e., vtkActor and subclasses). The list is unsorted and duplicate
  // entries are not prevented.
  
  // .SECTION see also
  // vtkActor vtkCollection
  
  #ifndef vtkActorCollection_h
  #define vtkActorCollection_h
  
  #include "vtkRenderingCoreModule.h" // For export macro
  #include "vtkPropCollection.h"
  #include "vtkActor.h" // For inline methods
  
  class vtkProperty;
  
  class VTKRENDERINGCORE_EXPORT vtkActorCollection : public vtkPropCollection
  {
  public:
    static vtkActorCollection *New();
    vtkTypeMacro(vtkActorCollection,vtkPropCollection);
    virtual void PrintSelf(ostream& os, vtkIndent indent);
  
    // Description:
    // Add an actor to the list.
    void AddItem(vtkActor *a);
  
    // Description:
    // Get the next actor in the list.
    vtkActor *GetNextActor();
  
    // Description:
    // Get the last actor in the list.
    vtkActor *GetLastActor();
  
    // Description:
    // Access routines that are provided for compatibility with previous
    // version of VTK.  Please use the GetNextActor(), GetLastActor() variants
    // where possible.
    vtkActor *GetNextItem();
    vtkActor *GetLastItem();
  
    // Description:
    // Apply properties to all actors in this collection.
    void ApplyProperties(vtkProperty *p);
  
    //BTX
    // Description:
    // Reentrant safe way to get an object in a collection. Just pass the
    // same cookie back and forth.
    vtkActor *GetNextActor(vtkCollectionSimpleIterator &cookie) {
      return static_cast<vtkActor *>(this->GetNextItemAsObject(cookie));};
    //ETX
  
  protected:
    vtkActorCollection() {}
    ~vtkActorCollection() {}
  
  
  private:
    // hide the standard AddItem from the user and the compiler.
    void AddItem(vtkObject *o) { this->vtkCollection::AddItem(o); };
    void AddItem(vtkProp *o) { this->vtkPropCollection::AddItem(o); };
  
  private:
    vtkActorCollection(const vtkActorCollection&);  // Not implemented.
    void operator=(const vtkActorCollection&);  // Not implemented.
  };
  
  inline void vtkActorCollection::AddItem(vtkActor *a)
  {
    this->vtkCollection::AddItem(a);
  }
  
  inline vtkActor *vtkActorCollection::GetNextActor()
  {
    return static_cast<vtkActor *>(this->GetNextItemAsObject());
  }
  
  inline vtkActor *vtkActorCollection::GetLastActor()
  {
    if ( this->Bottom == NULL )
      {
      return NULL;
      }
    else
      {
      return static_cast<vtkActor *>(this->Bottom->Item);
      }
  }
  
  inline vtkActor *vtkActorCollection::GetNextItem()
  {
    return this->GetNextActor();
  }
  
  inline vtkActor *vtkActorCollection::GetLastItem()
  {
    return this->GetLastActor();
  }
  
  #endif
  
  
  
  
  
  