mitkIShaderRepository.h

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

The Medical Imaging Interaction Toolkit (MITK)

Copyright (c) German Cancer Research Center,
Division of Medical and Biological Informatics.
All rights reserved.

This software is distributed WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE.

See LICENSE.txt or http://www.mitk.org for details.

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

#ifndef MITKISHADERREPOSITORY_H
#define MITKISHADERREPOSITORY_H

#include <itkLightObject.h>

#include "mitkCommon.h"
#include "mitkServiceInterface.h"

#include <list>

class vtkActor;
class vtkShaderProgram2;

namespace mitk
{
  class DataNode;
  class BaseRenderer;

  struct MITKCORE_EXPORT IShaderRepository
  {
    struct ShaderPrivate;

    class MITKCORE_EXPORT Shader : public itk::LightObject
    {
    public:
      mitkClassMacroItkParent(Shader, itk::LightObject) itkFactorylessNewMacro(Self)

        ~Shader();

      int GetId() const;
      std::string GetName() const;
      std::string GetMaterialXml() const;

    protected:
      Shader();

      void SetId(int id);
      void SetName(const std::string &name);
      void SetMaterialXml(const std::string &xml);

    private:
      // not implemented
      Shader(const Shader &);
      Shader &operator=(const Shader &);

      ShaderPrivate *d;
    };

    class MITKCORE_EXPORT ShaderProgram : public itk::LightObject
    {
    public:
      virtual void Activate() = 0;
      virtual void Deactivate() = 0;
      mitkClassMacroItkParent(ShaderProgram, itk::LightObject)
    };

    virtual ~IShaderRepository();

    virtual std::list<Shader::Pointer> GetShaders() const = 0;

    virtual Shader::Pointer GetShader(const std::string &name) const = 0;

    virtual ShaderProgram::Pointer CreateShaderProgram() = 0;

    virtual Shader::Pointer GetShader(int id) const = 0;

    virtual void AddDefaultProperties(mitk::DataNode *node, mitk::BaseRenderer *renderer, bool overwrite) const = 0;

    virtual void UpdateShaderProgram(mitk::IShaderRepository::ShaderProgram *shaderProgram,
                                     mitk::DataNode *node,
                                     mitk::BaseRenderer *renderer) const = 0;

    virtual int LoadShader(std::istream &stream, const std::string &name) = 0;

    virtual bool UnloadShader(int id) = 0;
  };
}

MITK_DECLARE_SERVICE_INTERFACE(mitk::IShaderRepository, "org.mitk.services.IShaderRepository/1.0")

#endif // MITKISHADERREPOSITORY_H