vtkGLSLModifierFactory.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkGLSLModifierFactory_h
#define vtkGLSLModifierFactory_h

#include "vtkRenderingOpenGL2Module.h"

#include <functional>
#include <map>
#include <string>

VTK_ABI_NAMESPACE_BEGIN
class vtkGLSLModifierBase;

class VTKRENDERINGOPENGL2_EXPORT vtkGLSLModifierFactory
{
public:
  using NewModFunction = std::function<vtkGLSLModifierBase*(void* userData)>;

  static vtkGLSLModifierBase* CreateAMod(const std::string& modName);

  static void RegisterAMod(
    const std::string& modName, NewModFunction createFunction, void* userData = nullptr);

private:
  static vtkGLSLModifierFactory& GetInstance();

  struct ModCreator
  {
    NewModFunction F;
    void* UserData;
  };
  std::map<std::string, ModCreator> ModTable;
};

VTK_ABI_NAMESPACE_END
#endif
// VTK-HeaderTest-Exclude: vtkGLSLModifierFactory.h