Panzer

// textobject.h
#ifndef TEXTOBJECT_H
#define TEXTOBJECT_H

#include <QDebug>

class TextObject: public QObject
{
     Q_OBJECT

    QString m_text;

public:
    TextObject() : m_text("initial")
    {
        qDebug() << "TextObject" << m_text << this;
        connect(this, SIGNAL(textChanged(QString)), this, SLOT(CPP_SLOT_textChanged()));
    }
    Q_PROPERTY(QString text READ getText WRITE setText NOTIFY textChanged)

    QString getText() const
    {
        qDebug() << "getText" << m_text;
        return m_text;
    }

signals:

    void textChanged(QString text);

public slots:
    void setText(QString text)
    {
        if (m_text == text)
        {
            qDebug() << "setText" << m_text << "UNCHANGED";
            return;
        }
        qDebug() << "setText" << m_text << "=" << text;
        m_text = text;
        emit textChanged(text);
    }
    void CPP_SLOT_textChanged()
    {
        qDebug() << "CPP_SLOT_textChanged" << m_text;
    }
    void changeTextViaCPP(QString text)
    {
        qDebug() << "changeTextViaCPP" << m_text << "=" << text;
        setText(text);
    }
};

#endif // TEXTOBJECT_H