/*
 * Copyright (C) 2012-2016 Open Source Robotics Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
#ifndef _GAZEBO_GUI_DATALOGGER_HH_
#define _GAZEBO_GUI_DATALOGGER_HH_

#include <memory>

#include "gazebo/msgs/msgs.hh"
#include "gazebo/gui/qt.h"
#include "gazebo/util/system.hh"

namespace gazebo
{
  namespace gui
  {
    class DataLoggerPrivate;

    /// \addtogroup gazebo_gui
    /// \{

    /// \class DataLogger DataLogger.hh gui/DataLogger.hh
    /// \brief A widget that provides data logging functionality.
    class GZ_GUI_VISIBLE DataLogger : public QDialog
    {
      Q_OBJECT

      /// \brief Constructor.
      /// \param[in] _parent Parent widget pointer.
      public: DataLogger(QWidget *_parent = 0);

      /// \brief Destructor.
      public: virtual ~DataLogger();

      /// \brief A signal used to set the time label.
      /// \param[in] _string String representation of time.
      signals: void SetTime(QString _string);

      /// \brief A signal used to set the size label.
      /// \param[in] _string String representation of size.
      signals: void SetSize(QString _string);

      /// \brief A signal used to set the destination path label.
      /// \param[in] _string The log destination directory
      signals: void SetDestinationPath(QString _string);

      /// \brief A signal used to set the destination URI label.
      /// \param[in] _string The log destination URI
      signals: void SetDestinationURI(QString _string);

      /// \brief QT callback for the record button.
      /// \param[in] _toggle True if the record button was toggled.
      private slots: void OnRecord(bool _toggle);

      /// \brief QT callback for setting the destination path label.
      /// \param[in] _string Destination path value.
      private slots: void OnSetDestinationPath(QString _string);

      /// \brief QT callback for setting the destination URI label.
      /// \param[in] _string Destination URI value.
      private slots: void OnSetDestinationURI(QString _string);

      /// \brief QT callback for setting the log path.
      private slots: void OnBrowse();

      /// \brief QT callback for toggling the settings visibility.
      /// \param[in] _checked True if the record button is in the checked
      /// state.
      private slots: void OnToggleSettings(bool _checked);

      /// \brief QT callback for blinking the status message.
      private slots: void OnBlinkStatus();

      /// \brief QT callback for timing out the confirmation message.
      private slots: void OnConfirmationTimeout();

      /// \brief QT callback when the dialog is closed.
      private slots: void OnCancel();

      /// \brief Callback for log status messages.
      /// \param[in] _msg Log status message.
      private: void OnStatus(ConstLogStatusPtr &_msg);

      /// \internal
      /// \brief Pointer to private data.
      private: std::unique_ptr<DataLoggerPrivate> dataPtr;
    };
    /// \}
  }
}
#endif
