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/*=========================================================================
Program: Visualization Toolkit
Module: vtkOpenGLLabeledContourMapper.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.
=========================================================================*/
/**
* @class vtkOpenGLLabeledContourMapper
*
* vtkOpenGLLabeledContourMapper is an override for vtkLabeledContourMapper
* that implements stenciling using the OpenGL2 API.
*/
#ifndef vtkOpenGLLabeledContourMapper_h
#define vtkOpenGLLabeledContourMapper_h
#include "vtkRenderingOpenGL2Module.h" // For export macro
#include "vtkLabeledContourMapper.h"
class vtkMatrix4x4;
class vtkOpenGLHelper;
class VTKRENDERINGOPENGL2_EXPORT vtkOpenGLLabeledContourMapper
: public vtkLabeledContourMapper
{
public:
static vtkOpenGLLabeledContourMapper *New();
vtkTypeMacro(vtkOpenGLLabeledContourMapper, vtkLabeledContourMapper)
virtual void PrintSelf(ostream &os, vtkIndent indent);
/**
* Release graphics resources
*/
void ReleaseGraphicsResources(vtkWindow *win);
protected:
vtkOpenGLLabeledContourMapper();
~vtkOpenGLLabeledContourMapper();
// We override this for compatibilty with the OpenGL backend:
// The old backend pushes actor matrices onto the matrix stack, so the text
// actors already accounted for any transformations on this mapper's actor.
// The new backend passes each actor's matrix to the shader individually, and
// this mapper's actor matrix doesn't affect the label rendering.
bool CreateLabels(vtkActor *actor);
bool ApplyStencil(vtkRenderer *ren, vtkActor *act);
bool RemoveStencil();
vtkOpenGLHelper *StencilBO;
vtkMatrix4x4 *TempMatrix4;
private:
vtkOpenGLLabeledContourMapper(const vtkOpenGLLabeledContourMapper&) VTK_DELETE_FUNCTION;
void operator=(const vtkOpenGLLabeledContourMapper&) VTK_DELETE_FUNCTION;
};
#endif
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