TranslationManipulatorNode.hh

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//=============================================================================
//
//  CLASS TranslationManipulatorNode
//
//=============================================================================


#ifndef ACG_TRANSLATIONMANIPULATOR_NODE_HH
#define ACG_TRANSLATIONMANIPULATOR_NODE_HH


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

// GMU
#include "BaseNode.hh"
#include "TransformNode.hh"

// Qt
#include <QEvent>
#include <QMouseEvent>

#include <ACG/GL/GLPrimitives.hh>


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

namespace ACG {
namespace SceneGraph {


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


class ACGDLLEXPORT TranslationManipulatorNode : public TransformNode
{
public:

  enum AutoSizeMode {
    Never,
    Once,
    Always
  };

  enum ManipulatorMode {
    Rotation,
    TranslationRotation,
    LocalRotation,
    Resize,
    Place
  };

  enum ActiveRotations {
    X_AXIS   = 1,
    Y_AXIS   = 1 << 1,
    Z_AXIS   = 1 << 2,
    ALL_AXIS = X_AXIS | Y_AXIS | Z_AXIS
  };

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

  ~TranslationManipulatorNode();


  ACG_CLASSNAME(TranslationManipulatorNode);


  //
  // METHODS
  //

  virtual void setIdentity();

  void set_draw_cylinder(bool _b) { draw_manipulator_ = _b; }

  bool draw_manipulator() const { return draw_manipulator_; }

  void set_direction(const Vec3d& _directionX, const Vec3d& _directionY);

  Vec3d directionX() const;
  Vec3d directionY() const;
  Vec3d directionZ() const;

  void set_size( double _size) {
    if (_size > 0.0)
    {
      set_manipulator_height_ = _size;
      set_manipulator_radius_ = _size/10.0;
      setDirty ();
    }
  }

  double size() const { return set_manipulator_height_; }

  void set_autosize (AutoSizeMode _mode) { auto_size_ = _mode; }

  AutoSizeMode autosize () const { return auto_size_; }

  void enable_rotations(ActiveRotations _active) {
    activeRotations_ = _active;
  }

  ActiveRotations enabled_rotations() const {
    return activeRotations_;
  }

  void rotate (double _angle, Vec3d _axis)
  {
    TransformNode::rotate(_angle, _axis);
  }

  void draw(GLState& _state, const DrawModes::DrawMode& _drawMode);

  void getRenderObjects(IRenderer* _renderer, GLState& _state, const DrawModes::DrawMode& _drawMode, const Material* _mat);

  GLMatrixd computeWorldMatrix();

  // void leave(GLState& _state, const DrawModes::DrawMode& _drawMode);

  void pick(GLState& _state, PickTarget _target);

  virtual void mouseEvent(GLState& _state, QMouseEvent* _event);

  void boundingBox(Vec3d& _bbMin, Vec3d& _bbMax);

  void setMode (ManipulatorMode _mode);

  ManipulatorMode getMode () const { return mode_; };


protected:
  bool touched_;

private:

  enum StateUpdates {
    None,
    Over,
    Click
  };

  enum Elements {
    Origin = 0,
    XTop,
    YTop,
    ZTop,
    XAxis,
    YAxis,
    ZAxis,
    XRing,
    YRing,
    ZRing,
    NumElements
  };

  class Element {
    public:
      Element ();

      Vec4f active_target_color_;
      Vec4f active_current_color_;
      Vec4f inactive_target_color_;
      Vec4f inactive_current_color_;

      bool  clicked_;
      bool  over_;
  };

  void update_manipulator_system(GLState& _state);

  void update_rotation(GLState& _state);

  bool hitSphere(GLState& _state, const Vec2i& _v2);
  bool hitOuterSphere(GLState& _state, const Vec2i& _v2);

  void drawManipulator (GLState& _state, bool _active);

  void addManipulatorToRenderer (IRenderer* _renderer, RenderObject* _baseRO, bool _active);
  void addAxisToRenderer (IRenderer* _renderer, RenderObject* _baseRO, bool _active, int _axis);


  bool mapToCylinder (GLState& _state, const Vec2i& _v2, StateUpdates _updateStates = None);
  bool mapToCylinderTop (GLState& _state, const Vec2i& _v2, StateUpdates _updateStates = None);

  bool mapToSphere (GLState& _state, const Vec2i& _v2, Vec3d& _v3, StateUpdates _updateStates = None);

  void updateTargetColors ();
  bool updateCurrentColors (GLState& _state);

  double get_screen_length (GLState& _state, Vec3d& _point) const;

  void updateSize (GLState& _state);

  // ELEMENTS
  bool               draw_manipulator_;

  Vec3d              dirX_;
  Vec3d              dirY_;
  Vec3d              dirZ_;

  ACG::GLCone*       axisBottom_; // axis split up for deferred draw call rendering,
  ACG::GLCone*       axisCenter_; // cone vbo data must be consistent within one frame
  ACG::GLCone*       axisTop_;
  ACG::GLDisk*       circle_;
  ACG::GLSphere*     sphere_;

  double             manipulator_radius_;
  double             manipulator_height_;
  double             set_manipulator_radius_;
  double             set_manipulator_height_;
  int                manipulator_slices_;
  int                manipulator_stacks_;

  bool               any_axis_clicked_;
  bool               any_top_clicked_;
  bool               outer_ring_clicked_;

  bool               any_axis_over_;
  bool               any_top_over_;
  bool               outer_ring_over_;


  Element            element_[NumElements];
  float              resize_current_;

  ManipulatorMode    mode_;
  bool               ignoreTime_;

  Vec2i              oldPoint2D_;
  Vec3d              draggingOrigin3D_;
  bool               dragging_;

  Vec3d              currentScale_;

  GLMatrixd          localTransformation_;

  AutoSizeMode       auto_size_;
  double             auto_size_length_;

  ActiveRotations    activeRotations_;
};


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