topic_model.h

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// Qt table model for rosbag_fancy messages
// Author: Christian Lenz <lenz@ais.uni-bonn.de>

#ifndef TOPIC_MODEL_H
#define TOPIC_MODEL_H

#include <QAbstractTableModel>

#include <rosbag_fancy_msgs/Status.h>

class QTimer;

namespace rqt_rosbag_fancy
{

class TopicModel : public QAbstractTableModel
{
Q_OBJECT
public:
        enum class Column
        {
                Activity,
                Name,
                Publisher,
                Messages,
                Rate,
                Bytes,
                Bandwidth,

                ColumnCount
        };

        explicit TopicModel(QObject* parent = 0);
        virtual ~TopicModel();

        int columnCount(const QModelIndex& parent) const override;
        int rowCount(const QModelIndex& parent) const override;

        QVariant data(const QModelIndex& index, int role) const override;
        QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
        
public Q_SLOTS:
        void setState(const rosbag_fancy_msgs::StatusConstPtr& status);

private Q_SLOTS:
        void clear();

private:
        rosbag_fancy_msgs::StatusConstPtr m_status;
        bool m_valid = false;
        QTimer* m_timer;
        
        QString rateToString(double rate) const;
        QString memoryToString(uint64_t memory) const;
        
        std::vector<unsigned int> m_lastMsgCount;
};

}

#endif