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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageSliceCollection.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 vtkImageSliceCollection - a sorted list of image slice objects
// .SECTION Description
// vtkImageSliceCollection is a vtkPropCollection that maintains
// a list of vtkImageSlice objects that are sorted by LayerNumber.
// This allows the images to be rendered in the correct order.
// .SECTION See Also
// vtkImageSlice vtkImageAssembly
#ifndef vtkImageSliceCollection_h
#define vtkImageSliceCollection_h
#include "vtkRenderingImageModule.h" // For export macro
#include "vtkPropCollection.h"
#include "vtkImageSlice.h" // to allow inline static-cast
class VTKRENDERINGIMAGE_EXPORT vtkImageSliceCollection : public vtkPropCollection
{
public:
static vtkImageSliceCollection *New();
vtkTypeMacro(vtkImageSliceCollection,vtkPropCollection);
// Description:
// Sorts the vtkImageSliceCollection by layer number. Smaller layer
// numbers are first. Layer numbers can be any integer value. Items
// with the same layer number will be kept in the same relative order
// as before the sort.
void Sort();
// Description:
// Add an image to the list. The new image is inserted in the list
// according to its layer number.
void AddItem(vtkImageSlice *a);
// Description:
// Standard Collection methods. You must call InitTraversal
// before calling GetNextImage. If possible, you should use the
// GetNextImage method that takes a collection iterator instead.
vtkImageSlice *GetNextImage();
//BTX
// Description:
// Reentrant safe way to get an object in a collection.
vtkImageSlice *GetNextImage(vtkCollectionSimpleIterator &cookie);
//ETX
// Description:
// Access routine provided for compatibility with previous
// versions of VTK. Please use the GetNextImage() variant
// where possible.
vtkImageSlice *GetNextItem() { return this->GetNextImage(); }
protected:
vtkImageSliceCollection() {}
~vtkImageSliceCollection();
virtual void DeleteElement(vtkCollectionElement *);
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:
vtkImageSliceCollection(const vtkImageSliceCollection&); // Not implemented.
void operator=(const vtkImageSliceCollection&); // Not implemented.
};
inline vtkImageSlice *vtkImageSliceCollection::GetNextImage()
{
return static_cast<vtkImageSlice *>(this->GetNextItemAsObject());
}
inline vtkImageSlice *vtkImageSliceCollection::GetNextImage(
vtkCollectionSimpleIterator &cookie)
{
return static_cast<vtkImageSlice *>(this->GetNextItemAsObject(cookie));
}
#endif
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