MaterialNode.hh

/*===========================================================================*\
 *                                                                           *
 *                              OpenFlipper                                  *
 *      Copyright (C) 2001-2009 by Computer Graphics Group, RWTH Aachen      *
 *                           www.openflipper.org                             *
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 *  This file is part of OpenFlipper.                                        *
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 *  OpenFlipper is free software: you can redistribute it and/or modify      *
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\*===========================================================================*/

/*===========================================================================*\
 *                                                                           *
 *   $Revision: 8548 $                                                       *
 *   $Author: moebius $                                                      *
 *   $Date: 2010-02-12 14:40:13 +0100 (Fr, 12. Feb 2010) $                   *
 *                                                                           *
\*===========================================================================*/




//=============================================================================
//
//  CLASS MaterialNode
//
//=============================================================================

#ifndef ACG_MATERIAL_NODE_HH
#define ACG_MATERIAL_NODE_HH


//== INCLUDES =================================================================

#include "BaseNode.hh"
#include <string>

//== NAMESPACES ===============================================================

namespace ACG {
namespace SceneGraph {


//== CLASS DEFINITION =========================================================


class ACGDLLEXPORT MaterialNode : public BaseNode
{
public:

  enum ApplyProperties
  {
    None=0,
    All=0xffff,
    BaseColor=1,
    Material=2,
    PointSize=4,
    LineWidth=8,
    RoundPoints=16,
    LineSmooth=32,
    AlphaTest=64,
    Blending=128,
    BackFaceCulling=256,
    ColorMaterial=512,
    MultiSampling=1024
  };



  MaterialNode( BaseNode*           _parent = 0,
                          const std::string&  _name = "<MaterialNode>",
                          unsigned int        _applyProperties = (All & ~BackFaceCulling));

  virtual ~MaterialNode() {};

  void read( std::istream & _is);

  //===========================================================================
  //===========================================================================

    ACG_CLASSNAME(MaterialNode);

    void enter(GLState& _state, DrawModes::DrawMode _drawmode);
    void leave(GLState& _state, DrawModes::DrawMode _drawmode);


    void enterPick(GLState& _state, PickTarget _target, DrawModes::DrawMode _drawMode );

    void leavePick(GLState& _state, PickTarget _target, DrawModes::DrawMode _drawMode );

  //===========================================================================
  //===========================================================================

    void set_color(const Vec4f& _c) {
      Vec4f c;
      set_base_color(_c);
      c = _c * 0.2f;  c[3]=_c[3];  set_ambient_color(c);
      c = _c * 0.6f;  c[3]=_c[3];  set_diffuse_color(c);
      c = _c * 0.8f;  c[3]=_c[3];  set_specular_color(c);
    }

    void set_base_color(const Vec4f& _c) { base_color_ = _c;}
    const Vec4f& base_color() const { return base_color_; }

    void set_ambient_color(const Vec4f& _a) { ambient_color_ = _a; }
    const Vec4f& ambient_color() const { return ambient_color_; }

    void set_diffuse_color(const Vec4f& _d) { diffuse_color_ = _d; }
    const Vec4f& diffuse_color() const { return diffuse_color_; }

    void set_specular_color(const Vec4f& _s) { specular_color_ = _s; }
    const Vec4f& specular_color() const { return specular_color_; }

    void colorMaterial( const bool _colorMaterial) { color_material_ = _colorMaterial; }
    void enable_color_material() { color_material_ = true; }
    void disable_color_material() { color_material_ = false; }
    bool colorMaterial() { return color_material_; }

    void set_shininess(float _s) { shininess_ = _s; }
    float shininess() const { return shininess_; }

  //===========================================================================
  //===========================================================================
    void set_point_size(float _sz) { point_size_ = _sz; }
    float point_size() const { return point_size_; }

    void set_line_width(float _sz) { line_width_ = _sz; }
    float line_width() const { return line_width_; }

    void set_round_points(bool _b) { round_points_ = _b; }
    bool round_points() const { return round_points_; }

    void set_line_smooth(bool _b) { lines_smooth_ = _b; }
    bool line_smooth() const { return lines_smooth_; }

  //===========================================================================
  //===========================================================================

    void enable_alpha_test(float _clip) {
      alpha_test_ = true; alpha_clip_ = _clip;
    }

    void disable_alpha_test() { alpha_test_ = false; }

    bool alpha_test() { return alpha_test_; };

  //===========================================================================
  //===========================================================================

    void enable_multisampling() {
      multiSampling_ = true;
    }

    void disable_multisampling() {
      multiSampling_ = false;
    }

    bool multiSampling() {
      return multiSampling_;
    }

    void set_multisampling( bool _state ) {
      multiSampling_ = _state;
    }


  float alpha_value(){ return alpha_clip_; };

  bool blending() { return blending_; };

  GLenum blending_param1() { return blend_param1_; };
  GLenum blending_param2() { return blend_param2_; };

  void enable_blending(GLenum _p1 = GL_SRC_ALPHA,
                       GLenum _p2 = GL_ONE_MINUS_SRC_ALPHA)
  { blending_ = true; blend_param1_ = _p1; blend_param2_ = _p2; }
  void disable_blending() { blending_ = false; }

  bool backface_culling() { return backface_culling_; };

  void enable_backface_culling() { backface_culling_ = true; }
  void disable_backface_culling() { backface_culling_ = false; }



  unsigned int applyProperties() const { return applyProperties_; }

  void applyProperties(unsigned int _applyProperties) {
    applyProperties_ = _applyProperties;
  }

private:

  int applyProperties_;

  Vec4f    base_color_,      base_color_backup_;
  Vec4f    ambient_color_,   ambient_color_backup_;
  Vec4f    diffuse_color_,   diffuse_color_backup_;
  Vec4f    specular_color_,  specular_color_backup_;

  float    shininess_,       shininess_backup_;
  float    point_size_,      point_size_backup_;
  float    line_width_,      line_width_backup_;

  bool     round_points_,    round_points_backup_;
  bool     lines_smooth_,    lines_smooth_backup_;

  bool     alpha_test_,      alpha_test_backup_;
  float    alpha_clip_,      alpha_clip_backup_;

  bool     blending_,        blending_backup_;
  GLenum   blend_param1_,    blend_param1_backup_;
  GLenum   blend_param2_,    blend_param2_backup_;

  bool     color_material_,  color_material_backup_;
  bool     backface_culling_,backface_culling_backup_;

  bool     multiSampling_,   multiSampling_backup_;
};


//=============================================================================
} // namespace SceneGraph
} // namespace ACG
//=============================================================================
#endif // ACG_MATERIAL_NODE_HH defined
//=============================================================================