logs_table_model.hpp

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#ifndef LOGSTABLEMODEL_HPP
#define LOGSTABLEMODEL_HPP
 
#include <QAbstractTableModel>
#include <QString>
#include <QDateTime>
#include <rosgraph_msgs/Log.h>
#include <rosbag/view.h>
#include <boost/circular_buffer.hpp>
#include <unordered_map>
#include <chrono>
 
#ifdef _WIN32
#undef ERROR
#endif
 
typedef std::chrono::high_resolution_clock::time_point TimePoint;
 
 
class LogsTableModel : public QAbstractTableModel
{
  Q_OBJECT
 
public:
  explicit LogsTableModel(QObject *parent = 0);
 
  typedef enum{
    DEBUG = 0,
    INFO = 1,
    WARNINGS = 2,
    ERROR = 3
  }Severity;
 
  // Header:
  QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
 
  // Basic functionality:
  int rowCount(const QModelIndex &parent = QModelIndex()) const override;
 
  int columnCount(const QModelIndex &parent = QModelIndex()) const override;
 
  QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
 
  void push_back(const rosgraph_msgs::Log::ConstPtr& pushed_log);
 
  void push_back(const std::vector<rosgraph_msgs::Log::ConstPtr>& pushed_logs);
 
  const QString& message(int index) const;
 
  const QString &nodeName(int index) const;
 
  Severity severity(int index) const;
 
  TimePoint timestamp(int index) const;
 
  int size() const { return _logs.size(); }
 
  void clear();
 
private:
 
  std::set<QString> _source_list;
  std::set<QString> _node_list;
 
  typedef struct{
    size_t count;
    int64_t time_usec_since_epoch;
    QString  time_text;
    Severity level_raw;
    const QString* node;
    QString message;
    const QString* source;
  }LogItem;
 
  boost::circular_buffer<LogItem> _logs;
 
  size_t _count;
 
  enum{ MAX_CAPACITY = 20000 }; // max capacity of the circular buffer
 
  LogItem convertRosout(const rosgraph_msgs::Log &log);
 
#ifdef USE_ROSOUT2
  LogItem convertRosout(const rosout2_msg::LogMsg &log);
#endif
 
signals:
 
  void rowsShifted(int);
 
};
 
 
#endif // LOGSTABLEMODEL_HPP