mitkShaderRepository.h

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

Program:   Medical Imaging & Interaction Toolkit
Language:  C++
Date:      $Date: 2008-02-08 13:23:19 +0100 (Fri, 08 Feb 2008) $
Version:   $Revision: 13561 $

Copyright (c) German Cancer Research Center, Division of Medical and
Biological Informatics. All rights reserved.
See MITKCopyright.txt or https://www.mitk.org/copyright.html 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 notices for more information.

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

#ifndef _MITKSHADERREPOSITORY_H_
#define _MITKSHADERREPOSITORY_H_

#include "mitkCommon.h"
#include "itkObject.h"
#include "itkObjectFactory.h"
#include <vtkXMLDataElement.h>

#include "mitkBaseRenderer.h"
#include "mitkDataNode.h"

namespace mitk {

class MITK_CORE_EXPORT ShaderRepository : public itk::Object
{
public:

  mitkClassMacro( ShaderRepository, itk::Object );

  itkNewMacro( Self );

  static ShaderRepository *GetGlobalShaderRepository();

  class Shader : public itk::Object
  {
    public:

    mitkClassMacro( Shader, itk::Object );
    itkNewMacro( Self );

    class Uniform : public itk::Object
    {
      public:

      mitkClassMacro( Uniform, itk::Object );
      itkNewMacro( Self );

      enum Type
      {
        glsl_none,
        glsl_float,
        glsl_vec2,
        glsl_vec3,
        glsl_vec4,
        glsl_int,
        glsl_ivec2,
        glsl_ivec3,
        glsl_ivec4
      };

      Uniform();

      ~Uniform();

      Type type;
      std::string name;

      int defaultInt[4];
      float defaultFloat[4];

      void LoadFromXML(vtkXMLDataElement *e);
    };

    std::list<Uniform::Pointer> uniforms;

    Shader();

    ~Shader();

    std::string name;
    std::string path;

    void LoadPropertiesFromPath();

    Uniform *GetUniform(char * /*id*/) { return 0; }

    std::list<Uniform::Pointer> *GetUniforms()
    {
      return &uniforms;
    }
  };



protected:

  std::list<Shader::Pointer> shaders;

  void LoadShaders();

  ShaderRepository();

  ~ShaderRepository();

public:

  std::list<Shader::Pointer> *GetShaders()
  {
    return &shaders;
  }

  Shader *GetShader(const char *id);


  void AddDefaultProperties(mitk::DataNode* node, mitk::BaseRenderer* renderer, bool overwrite);

  void ApplyProperties(mitk::DataNode* node, vtkActor *actor, mitk::BaseRenderer* renderer,itk::TimeStamp &MTime);

  void LoadShader(std::string filename);


};

} //end of namespace mitk
#endif