PrismLauncher/launcher/launch/LogModel.h

#pragma once

#include <QAbstractListModel>
#include <QString>
#include "MessageLevel.h"

class LogModel : public QAbstractListModel {
    Q_OBJECT
   public:
    explicit LogModel(QObject* parent = 0);

    int rowCount(const QModelIndex& parent = QModelIndex()) const;
    QVariant data(const QModelIndex& index, int role) const;

    void append(MessageLevel::Enum, QString line);
    void clear();

    void suspend(bool suspend);
    bool suspended();

    QString toPlainText();

    int getMaxLines();
    void setMaxLines(int maxLines);
    void setStopOnOverflow(bool stop);
    void setOverflowMessage(const QString& overflowMessage);

    void setLineWrap(bool state);
    bool wrapLines() const;

    enum Roles { LevelRole = Qt::UserRole };

   private /* types */:
    struct entry {
        MessageLevel::Enum level;
        QString line;
    };

   private: /* data */
    QVector<entry> m_content;
    int m_maxLines = 1000;
    // first line in the circular buffer
    int m_firstLine = 0;
    // number of lines occupied in the circular buffer
    int m_numLines = 0;
    bool m_stopOnOverflow = false;
    QString m_overflowMessage = "OVERFLOW";
    bool m_suspended = false;
    bool m_lineWrap = true;

   private:
    Q_DISABLE_COPY(LogModel)
};