vtkOpenGLLabeledContourMapper.h

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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.
 
=========================================================================*/
#ifndef vtkOpenGLLabeledContourMapper_h
#define vtkOpenGLLabeledContourMapper_h
 
#include "vtkLabeledContourMapper.h"
#include "vtkRenderingOpenGL2Module.h" // For export macro
 
class vtkMatrix4x4;
class vtkOpenGLHelper;
 
class VTKRENDERINGOPENGL2_EXPORT vtkOpenGLLabeledContourMapper : public vtkLabeledContourMapper
{
public:
  static vtkOpenGLLabeledContourMapper* New();
  vtkTypeMacro(vtkOpenGLLabeledContourMapper, vtkLabeledContourMapper);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  void ReleaseGraphicsResources(vtkWindow* win) override;
 
protected:
  vtkOpenGLLabeledContourMapper();
  ~vtkOpenGLLabeledContourMapper() override;
 
  // We override this for compatibility 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) override;
 
  bool ApplyStencil(vtkRenderer* ren, vtkActor* act) override;
  bool RemoveStencil(vtkRenderer* ren) override;
 
  vtkOpenGLHelper* StencilBO;
  vtkMatrix4x4* TempMatrix4;
 
private:
  vtkOpenGLLabeledContourMapper(const vtkOpenGLLabeledContourMapper&) = delete;
  void operator=(const vtkOpenGLLabeledContourMapper&) = delete;
};
 
#endif