robot_joint.h

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/*
 * Copyright (c) 2013, Willow Garage, Inc.
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#ifndef RVIZ_ROBOT_JOINT_H
#define RVIZ_ROBOT_JOINT_H

#include <string>
#include <map>

#include <QObject>

#include <OGRE/OgreVector3.h>
#include <OGRE/OgreQuaternion.h>
#include <OGRE/OgreAny.h>
#include <OGRE/OgreMaterial.h>

#include "rviz/ogre_helpers/object.h"
#include "rviz/selection/forwards.h"

namespace Ogre
{
class SceneManager;
class Entity;
class SubEntity;
class SceneNode;
class Vector3;
class Quaternion;
class Any;
class RibbonTrail;
}

namespace urdf
{
class ModelInterface;
class Link;
class Joint;
class Geometry;
class Pose;
}

namespace rviz
{
class Shape;
class Axes;
class DisplayContext;
class FloatProperty;
class Property;
class BoolProperty;
class QuaternionProperty;
class Robot;
class RobotLinkSelectionHandler;
class VectorProperty;
class RobotJoint;


class RobotJoint: public QObject
{
Q_OBJECT
public:
  RobotJoint( Robot* robot, const boost::shared_ptr<const urdf::Joint>& joint );
  virtual ~RobotJoint();


  void setTransforms(const Ogre::Vector3& parent_link_position,
                     const Ogre::Quaternion& parent_link_orientation);

  const std::string& getName() const { return name_; }
  const std::string& getParentLinkName() const { return parent_link_name_; }
  const std::string& getChildLinkName() const { return child_link_name_; }
  const Property* getJointProperty() const { return joint_property_; }
  Property* getJointProperty() { return joint_property_; }
  RobotJoint* getParentJoint();
  void hideSubProperties(bool hide);

  // Remove joint_property_ from its old parent and add to new_parent.  If new_parent==NULL then leav unparented.
  void setParentProperty(Property* new_parent);

  Ogre::Vector3 getPosition();
  Ogre::Quaternion getOrientation();

  void setRobotAlpha(float a) {}

  bool hasDescendentLinksWithGeometry() const { return has_decendent_links_with_geometry_; }

  // place subproperties as children of details_ or joint_property_
  void useDetailProperty(bool use_detail);

  // expand all sub properties
  void expandDetails(bool expand);

  // Set the description for the joint.
  // Also sets the checkbox.
  // Also sets has_decendent_links_with_geometry_.
  // Called when the link_tree style changes.
  void setJointPropertyDescription();

  // set checkboxes based on state of descendent link enables
  // Should only be called by Robot::calculateJointCheckboxes()
  void calculateJointCheckboxesRecursive(
      int& links_with_geom,             // returns # of children with geometry
      int& links_with_geom_checked,     // returns # of enabled children with geometry
      int& links_with_geom_unchecked);  // returns # of disabled children with geometry


private Q_SLOTS:
  void updateAxes();
  void updateChildVisibility();

private:
  bool getEnabled() const;

  // true if displaying in a tree style.  False if list style.
  bool styleIsTree() const;

  // determine the state of child link(s)
  void getChildLinkState(
      int& links_with_geom,             // returns # of children with geometry
      int& links_with_geom_checked,     // returns # of enabled children with geometry
      int& links_with_geom_unchecked,   // returns # of disabled children with geometry
      bool recursive) const;            // True: all descendant links.  False: just single child link.

  // set the value of the enable checkbox without touching child joints/links
  void setJointCheckbox(QVariant val);


protected:
  Robot* robot_;
  std::string name_;                          
  std::string parent_link_name_;
  std::string child_link_name_;

  // properties
  Property* joint_property_;
  Property* details_;
  VectorProperty* position_property_;
  QuaternionProperty* orientation_property_;
  Property* axes_property_;

private:
  Ogre::Vector3 joint_origin_pos_;
  Ogre::Quaternion joint_origin_rot_;
  bool has_decendent_links_with_geometry_;

  bool doing_set_checkbox_;   // prevents updateChildVisibility() from  touching children

  Axes* axes_;
};

} // namespace rviz

#endif // RVIZ_ROBOT_LINK_H