euler_property.h

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/*
 * Copyright (C) 2016, Bielefeld University, CITEC
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Willow Garage, Inc. nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * Author: Robert Haschke <rhaschke@techfak.uni-bielefeld.de>
 */
 
#ifndef EULER_PROPERTY_H
#define EULER_PROPERTY_H
 
#include <Eigen/Geometry>
#include <stdexcept>
 
#include <rviz/properties/property.h>
#include <rviz/properties/status_property.h>
 
namespace rviz {
 
class SpinBoxFloatProperty;
 
class EulerProperty : public Property
{
  Q_OBJECT
public:
  class invalid_axes : public std::invalid_argument
  {
  public:
    invalid_axes(const std::string& msg);
  };
 
  EulerProperty(Property* parent = nullptr,
                const QString& name = QString(),
                const Eigen::Quaterniond& value = Eigen::Quaterniond::Identity(),
                const char* changed_slot = nullptr,
                QObject* receiver = nullptr);
 
  Eigen::Quaterniond getQuaternion() const {
    return quaternion_;
  }
  bool setValue(const QVariant& value) override;
 
  void load(const Config& config) override;
  void save(Config config) const override;
 
  void setReadOnly(bool read_only) override;
  bool getAnglesReadOnly() {
    return angles_read_only_;
  }
 
public Q_SLOTS:
  void setQuaternion(const Eigen::Quaterniond& q);
  void setEulerAngles(double euler[3], bool normalize);
  void setEulerAngles(double e1, double e2, double e3, bool normalize);
  void setEulerAxes(const QString& axes_spec);
 
private Q_SLOTS:
  void updateFromChildren();
  void emitAboutToChange();
 
Q_SIGNALS:
  void quaternionChanged(Eigen::Quaterniond q);
  void statusUpdate(rviz::StatusProperty::Level, const QString&, const QString&);
 
private:
  void updateAngles(const Eigen::Quaterniond& q);
  void updateString();
 
  Eigen::Quaterniond quaternion_;
  QString axes_string_;
  uint axes_[3]; // unit axis index for i-th rotation
  bool fixed_;
  SpinBoxFloatProperty* euler_[3];
  bool ignore_child_updates_;
  bool angles_read_only_;
  bool update_string_; // do we have any changes triggering an updateString()?
};
 
} // end namespace rviz
 
#endif // EULER_PROPERTY_H