material.h

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/*! \file
  \brief  The disti::Material class.

  \par Copyright Information

  Copyright (c) 2017 by The DiSTI Corporation.<br>
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*/

#ifndef INCLUDED_DISTI_MATERIAL_H
#define INCLUDED_DISTI_MATERIAL_H

#include "display_types.h"
#include "gls_color.h"
#include "gls_gl.h"
#include "unhide_globals.h"
#include <iosfwd> //Forward references for the stream operators
#include <string>

namespace disti
{
/** The Material class
  */
class Material
{
public:
    static GlsColor _ambientDefault;   /** The ambient value for the default material */
    static GlsColor _diffuseDefault;   /** The diffuse value for the default material */
    static GlsColor _specularDefault;  /** The specular value for the default material */
    static GlsColor _emissionDefault;  /** The emission value for the default material */
    static float    _shininessDefault; /** The shininess value for the default material */

    GlsColor            _ambient;           /** Ambient component of the material */
    GlsColor            _diffuse;           /** Diffuse component of the material */
    GlsColor            _specular;          /** Specular component of the material */
    GlsColor            _emission;          /** Emission component of the material */
    float               _shininess;         /** Shininess component of the material */
    bool                _inUse;             /** True if the material is in use */
    std::string         _name;              /** String name of the material */
    ColorMaterialMode_e _colorMaterialMode; /* Color mode to use for this material */

    GLS_EXPORT Material();
    GLS_EXPORT Material(
        const GlsColor& ambient,
        const GlsColor& diffuse,
        const GlsColor& specular,
        const GlsColor& emission,
        const float&    shininess );

    /** Materials are equivalent if all of their parameters are the same */
    inline static bool MaterialsAreEquivalent( const Material& m1, const Material& m2 )
    {
        return m1._name == m2._name && m1._ambient == m2._ambient && m1._specular == m2._specular && m1._diffuse == m2._diffuse && m1._emission == m2._emission && m1._shininess == m2._shininess;
    }

    /** Applies the ambient component of this material to the OpenGL pipeline 
      * \param face Which faces to apply this to (front, back or front and back faces)
      */
    GLS_EXPORT void ApplyAmbient( GLenum face = GL_FRONT_AND_BACK );

    /** Applies the diffuse component of this material to the OpenGL pipeline 
      * \param face Which faces to apply this to (front, back or front and back faces)
      */
    GLS_EXPORT void ApplyDiffuse( GLenum face = GL_FRONT_AND_BACK );

    /** Applies the specular component of this material to the OpenGL pipeline 
      * \param face Which faces to apply this to (front, back or front and back faces)
      */
    GLS_EXPORT void ApplySpecular( GLenum face = GL_FRONT_AND_BACK );

    /** Applies the emission component of this material to the OpenGL pipeline 
      * \param face Which faces to apply this to (front, back or front and back faces)
      */
    GLS_EXPORT void ApplyEmission( GLenum face = GL_FRONT_AND_BACK );

    /** Applies the shininess component of this material to the OpenGL pipeline 
      * \param face Which faces to apply this to (front, back or front and back faces)
      */
    GLS_EXPORT void ApplyShininess( GLenum face = GL_FRONT_AND_BACK );

    /** Applies all of the components of this material to the OpenGL pipeline 
      * \param face Which faces to apply this to (front, back or front and back faces)
      */
    GLS_EXPORT void ApplyAll( GLenum face = GL_FRONT_AND_BACK );

    /** \return True if this material is in use */
    GLS_EXPORT bool InUse() const;

    /** Sets whether this material is in use 
      * \param val  Whether this material is in use 
      */
    GLS_EXPORT void InUse( bool val );

    /** \return The material name */
    GLS_EXPORT const std::string& Name() const;

    /** Sets the material name
      * \param name  The material name
      */
    GLS_EXPORT void Name( const std::string& name );
};

GLS_EXPORT bool operator==( const Material& rhs, const Material& lhs );
GLS_EXPORT bool operator!=( const Material& rhs, const Material& lhs );

/** Stream operator to write a material to a stream */
GLS_EXPORT std::ostream& operator<<( std::ostream& outstr, const Material& mat );

/** Stream operator to read a material from a stream */
GLS_EXPORT std::istream& operator>>( std::istream& instr, Material& mat );

} // namespace disti

#endif