TransformNode.hh

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//=============================================================================
//
//  CLASS TransformNode
//
//=============================================================================

#ifndef ACG_TRANSFORM_NODE_HH
#define ACG_TRANSFORM_NODE_HH


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


#include "BaseNode.hh"
#include "../Math/GLMatrixT.hh"
#include "../Math/VectorT.hh"
#include "../Math/QuaternionT.hh"


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


namespace ACG {
namespace SceneGraph {


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


class ACGDLLEXPORT TransformNode : public BaseNode
{
public:


  TransformNode( BaseNode* _parent=0,
                 const std::string& _name="<TransformNode>" );

  virtual ~TransformNode(){}

  ACG_CLASSNAME(TransformNode);


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



  void set_center(const Vec3d& _c) { center_ = _c; }
  const Vec3d& center() const { return center_; }


  void loadIdentity();
  virtual void setIdentity();



  //--- set values ---


  void translate(const Vec3d& _v);

  void rotate(double _angle, const Vec3d& _axis);

  void scale(double _s) { scale(Vec3d(_s, _s, _s)); }

  void scale(const Vec3d& _s);

  void scale(const GLMatrixd& _m);


  //--- get values ---


  const GLMatrixd& matrix() const { return matrix_; }
  const GLMatrixd& inverse_matrix() const { return inverse_matrix_; }

  void rotation(Vec3d& _axis, double& _angle) const {
    quaternion_.axis_angle(_axis, _angle);
    _angle *= 180.0/M_PI;
  }
  const GLMatrixd& rotation() const {
    return rotation_matrix_;
  }
  const GLMatrixd& inverse_rotation() const {
    return inverse_rotation_matrix_;
  }


  const Vec3d& translation() const { return translation_; }

  const GLMatrixd& scale() const { 
    return scale_matrix_; 
  }
  const GLMatrixd& inverse_scale() const { 
    return inverse_scale_matrix_; 
  }

  bool apply_transformation() { return applyTransformation_; }

  void apply_transformation(bool _applyTransformation) { applyTransformation_ = _applyTransformation; }


  // ortho 2d mode
  bool is2D(){return is2DObject_;};
  void set2D(bool _2d){is2DObject_ = _2d;};
  
  bool isPerSkeletonObject(){return isPerSkeletonObject_;};
  void setPerSkeletonObject(bool _is){isPerSkeletonObject_ = _is;};
  void setPerSkeletonModelView(GLMatrixd _is){perSkeletonModelView_ = _is;};
  
  void ortho2DMode(GLState& _state);
  void perSkeletonMode(GLState& _state);
  void update2DOffset(ACG::Vec2d _offset){offset_ += _offset;};
  void scale2D(double _scale){scaleFactor2D_ = _scale;};
  void setImageDimensions(ACG::Vec2i _dim){imageDimensions_ = _dim;};

private:

  void updateMatrix();


  // ELEMENTS
  GLMatrixd         matrix_, inverse_matrix_;
  GLMatrixd         rotation_matrix_, inverse_rotation_matrix_, scale_matrix_, inverse_scale_matrix_;
  Vec3d             center_;
  Vec3d             translation_;
  Quaterniond       quaternion_;


  bool applyTransformation_;

public:
  // ortho 2d mode
  bool is2DObject_;
  bool isPerSkeletonObject_;
  GLMatrixd perSkeletonModelView_;
  double scaleFactor2D_;
  ACG::Vec2i imageDimensions_;
  ACG::Vec2d offset_;

};


//=============================================================================
} // namespace SceneGraph
} // namespace ACG
//=============================================================================
#endif // ACG_TRANSFORM_NODE_HH
//=============================================================================