dox/Rendering/vtkProperty.h

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

  Program:   Visualization Toolkit
  Module:    vtkProperty.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 __vtkProperty_h
#define __vtkProperty_h

#include "vtkObject.h"

// shading models
#define VTK_FLAT    0
#define VTK_GOURAUD 1
#define VTK_PHONG   2

// representation models
#define VTK_POINTS    0
#define VTK_WIREFRAME 1
#define VTK_SURFACE   2

class vtkActor;
class vtkRenderer;
class vtkShaderProgram;
class vtkTexture;
class vtkWindow;
class vtkXMLDataElement;
class vtkXMLMaterial;

class vtkPropertyInternals;

class VTK_RENDERING_EXPORT vtkProperty : public vtkObject
{
public:
  vtkTypeMacro(vtkProperty,vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent);

  static vtkProperty *New();

  void DeepCopy(vtkProperty *p);

  virtual void Render(vtkActor *,vtkRenderer *);

  virtual void BackfaceRender(vtkActor *,vtkRenderer *) {};

  //BTX

  virtual void PostRender(vtkActor*, vtkRenderer*);
  //ETX


  vtkGetMacro(Lighting,bool);
  vtkSetMacro(Lighting,bool);
  vtkBooleanMacro(Lighting,bool);
  

  vtkSetClampMacro(Interpolation,int,VTK_FLAT,VTK_PHONG);
  vtkGetMacro(Interpolation,int);
  void SetInterpolationToFlat() {this->SetInterpolation(VTK_FLAT);};
  void SetInterpolationToGouraud() {this->SetInterpolation(VTK_GOURAUD);};
  void SetInterpolationToPhong() {this->SetInterpolation(VTK_PHONG);};
  const char *GetInterpolationAsString();


  vtkSetClampMacro(Representation,int,VTK_POINTS,VTK_SURFACE);
  vtkGetMacro(Representation,int);
  void SetRepresentationToPoints() {this->SetRepresentation(VTK_POINTS);};
  void SetRepresentationToWireframe() {
    this->SetRepresentation(VTK_WIREFRAME);};
  void SetRepresentationToSurface() {this->SetRepresentation(VTK_SURFACE);};
  const char *GetRepresentationAsString();


  void SetColor(double r, double g, double b);
  void SetColor(double a[3]) { this->SetColor(a[0], a[1], a[2]); };
  double *GetColor();
  void GetColor(double rgb[3]);
  void GetColor(double &r, double &g, double &b);


  vtkSetClampMacro(Ambient,double,0.0,1.0);
  vtkGetMacro(Ambient,double);


  vtkSetClampMacro(Diffuse,double,0.0,1.0);
  vtkGetMacro(Diffuse,double);


  vtkSetClampMacro(Specular,double,0.0,1.0);
  vtkGetMacro(Specular,double);


  vtkSetClampMacro(SpecularPower,double,0.0,128.0);
  vtkGetMacro(SpecularPower,double);


  vtkSetClampMacro(Opacity,double,0.0,1.0);
  vtkGetMacro(Opacity,double);


  vtkSetVector3Macro(AmbientColor,double);
  vtkGetVector3Macro(AmbientColor,double);


  vtkSetVector3Macro(DiffuseColor,double);
  vtkGetVector3Macro(DiffuseColor,double);


  vtkSetVector3Macro(SpecularColor,double);
  vtkGetVector3Macro(SpecularColor,double);


  vtkGetMacro(EdgeVisibility,int);
  vtkSetMacro(EdgeVisibility,int);
  vtkBooleanMacro(EdgeVisibility,int);


  vtkSetVector3Macro(EdgeColor,double);
  vtkGetVector3Macro(EdgeColor,double);


  vtkSetClampMacro(LineWidth,float,0,VTK_LARGE_FLOAT);
  vtkGetMacro(LineWidth,float);


  vtkSetMacro(LineStipplePattern,int);
  vtkGetMacro(LineStipplePattern,int);


  vtkSetClampMacro(LineStippleRepeatFactor,int,1,VTK_LARGE_INTEGER);
  vtkGetMacro(LineStippleRepeatFactor,int);


  vtkSetClampMacro(PointSize,float,0,VTK_LARGE_FLOAT);
  vtkGetMacro(PointSize,float);


  vtkGetMacro(BackfaceCulling,int);
  vtkSetMacro(BackfaceCulling,int);
  vtkBooleanMacro(BackfaceCulling,int);


  vtkGetMacro(FrontfaceCulling,int);
  vtkSetMacro(FrontfaceCulling,int);
  vtkBooleanMacro(FrontfaceCulling,int);


  vtkGetObjectMacro(Material, vtkXMLMaterial);


  vtkGetStringMacro(MaterialName);

  void LoadMaterial(const char* name);

  void LoadMaterialFromString(const char* materialxml);

  void LoadMaterial(vtkXMLMaterial*);


  vtkSetMacro(Shading, int);
  vtkGetMacro(Shading, int);
  vtkBooleanMacro(Shading, int);


  vtkGetObjectMacro(ShaderProgram, vtkShaderProgram);


  virtual void AddShaderVariable(const char *name, int numVars, int *x);
  virtual void AddShaderVariable(const char *name, int numVars, float *x);
  virtual void AddShaderVariable(const char *name, int numVars, double *x);


  void AddShaderVariable(const char* name, int v)
    {
    this->AddShaderVariable(name, 1, &v);
    }
  void AddShaderVariable(const char* name, float v)
    {
    this->AddShaderVariable(name, 1, &v);
    }
  void AddShaderVariable(const char* name, double v)
    {
    this->AddShaderVariable(name, 1, &v);
    }
  void AddShaderVariable(const char* name, int v1, int v2)
    {
    int v[2];
    v[0] = v1;
    v[1] = v2;
    this->AddShaderVariable(name, 2, v);
    }
  void AddShaderVariable(const char* name, float v1, float v2)
    {
    float v[2];
    v[0] = v1;
    v[1] = v2;
    this->AddShaderVariable(name, 2, v);
    }
  void AddShaderVariable(const char* name, double v1, double v2)
    {
    double v[2];
    v[0] = v1;
    v[1] = v2;
    this->AddShaderVariable(name, 2, v);
    }
  void AddShaderVariable(const char* name, int v1, int v2, int v3)
    {
    int v[3];
    v[0] = v1;
    v[1] = v2;
    v[2] = v3;
    this->AddShaderVariable(name, 3, v);
    }
  void AddShaderVariable(const char* name, float v1, float v2, float v3)
    {
    float v[3];
    v[0] = v1;
    v[1] = v2;
    v[2] = v3;
    this->AddShaderVariable(name, 3, v);
    }
  void AddShaderVariable(const char* name, double v1, double v2, double v3)
    {
    double v[3];
    v[0] = v1;
    v[1] = v2;
    v[2] = v3;
    this->AddShaderVariable(name, 3, v);
    }


  void SetTexture(const char* name, vtkTexture* texture);
  vtkTexture* GetTexture(const char* name);


  void SetTexture(int unit, vtkTexture* texture);
  vtkTexture* GetTexture(int unit);
  void RemoveTexture(int unit);


  void RemoveTexture(const char* name);

  void RemoveAllTextures();

  int GetNumberOfTextures();

  virtual void ReleaseGraphicsResources(vtkWindow *win);

//BTX

  enum VTKTextureUnit
  {
    VTK_TEXTURE_UNIT_0 = 0,
    VTK_TEXTURE_UNIT_1,
    VTK_TEXTURE_UNIT_2,
    VTK_TEXTURE_UNIT_3,
    VTK_TEXTURE_UNIT_4,
    VTK_TEXTURE_UNIT_5,
    VTK_TEXTURE_UNIT_6,
    VTK_TEXTURE_UNIT_7
  };
//ETX

protected:
  vtkProperty();
  ~vtkProperty();


  void LoadProperty();
  void LoadTextures();
  void LoadTexture(vtkXMLDataElement* elem);
  void LoadPerlineNoise(vtkXMLDataElement* );
  void LoadMember(vtkXMLDataElement* elem);

  double Color[3];
  double AmbientColor[3];
  double DiffuseColor[3];
  double SpecularColor[3];
  double EdgeColor[3];
  double Ambient;
  double Diffuse;
  double Specular;
  double SpecularPower;
  double Opacity;
  float PointSize;
  float LineWidth;
  int   LineStipplePattern;
  int   LineStippleRepeatFactor;
  int   Interpolation;
  int   Representation;
  int   EdgeVisibility;
  int   BackfaceCulling;
  int   FrontfaceCulling;
  bool Lighting;

  int Shading;

  char* MaterialName;
  vtkSetStringMacro(MaterialName);

  vtkShaderProgram* ShaderProgram;
  void SetShaderProgram(vtkShaderProgram*);

  vtkXMLMaterial* Material; // TODO: I wonder if this reference needs to be maintained.

  virtual void ReadFrameworkMaterial();
  
//BTX
  // These friends are provided only for the time being
  // till we device a graceful way of loading texturing for GLSL.
  friend class vtkGLSLShaderProgram;
  friend class vtkShader;
  // FIXME:
  // Don't use these methods. They will be removed. They are provided only
  // for the time-being.
  vtkTexture* GetTextureAtIndex(int index);
  int GetTextureUnitAtIndex(int index);
  int GetTextureUnit(const char* name);
//ETX

private:
  vtkProperty(const vtkProperty&);  // Not implemented.
  void operator=(const vtkProperty&);  // Not implemented.

  vtkPropertyInternals* Internals;
};


inline const char *vtkProperty::GetInterpolationAsString(void)
{
  if ( this->Interpolation == VTK_FLAT )
    {
    return "Flat";
    }
  else if ( this->Interpolation == VTK_GOURAUD )
    {
    return "Gouraud";
    }
  else
    {
    return "Phong";
    }
}



inline const char *vtkProperty::GetRepresentationAsString(void)
{
  if ( this->Representation == VTK_POINTS )
    {
    return "Points";
    }
  else if ( this->Representation == VTK_WIREFRAME )
    {
    return "Wireframe";
    }
  else
    {
    return "Surface";
    }
}



#endif

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