/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkPointsPainter.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   vtkPointsPainter
 * @brief   this painter paints verts.
 *
 * This painter tries to paint points efficiently. Request to Render
 * any other primitive are ignored and not passed to the delegate painter,
 * if any. This painter cannot handle cell colors/normals. If they are
 * present the request is passed on to the Delegate painter. If this
 * class is able to render the primitive, the render request is not
 * propagated to the delegate painter.
*/

#ifndef vtkPointsPainter_h
#define vtkPointsPainter_h

#include "vtkRenderingOpenGLModule.h" // For export macro
#include "vtkPrimitivePainter.h"

class VTKRENDERINGOPENGL_EXPORT vtkPointsPainter : public vtkPrimitivePainter
{
public:
  static vtkPointsPainter* New();
  vtkTypeMacro(vtkPointsPainter, vtkPrimitivePainter);
  void PrintSelf(ostream& os, vtkIndent indent) override;

protected:
  vtkPointsPainter();
  ~vtkPointsPainter() override;

  /**
   * The actual rendering happens here. This method is called only when
   * SupportedPrimitive is present in typeflags when Render() is invoked.
   */
  int RenderPrimitive(unsigned long flags, vtkDataArray* n,
    vtkUnsignedCharArray* c, vtkDataArray* t, vtkRenderer* ren) override;

private:
  vtkPointsPainter(const vtkPointsPainter&) = delete;
  void operator=(const vtkPointsPainter&) = delete;
};

#endif