Anastas

#include <QObject>
#include <QVector>
class Foo: public QObject
{
    Q_OBJECT
    Q_PROPERTY(QVector<bool> b READ getData WRITE setData)
public:
    Foo()
    {
        m_b.resize(30);
        for(auto &b:m_b)
        {
            b = true;
        }
    }
    QVector<bool> getData()
    {
        return m_b;
    }
    void inv()
    {
        for(auto &b:m_b)
        {
            b = !b;
        }
    }
    void setData(QVector<bool> b)
    {
        m_b = b;
    }

private:
     QVector<bool> m_b;
};

class Bar: public QObject
{
    Q_OBJECT
    Q_PROPERTY(QVector<bool> b WRITE setData)
public:
    Bar(){};
    void printData()
    {
        for(auto &b:m_b)
        {
            qDebug() << b << ' ';
        }
    }
    void setData(QVector<bool> b)
    {
        m_b = b;
    }
private:
     QVector<bool> m_b;
};

int main(int argc, char *argv[])
{
    Foo foo;
    Bar bar;
    bar.setData(foo.getData());
    bar.printData();
    
    qDebug() << "modify\n";

    foo.inv();
    bar.setProperty("b", foo.property("b"));
    bar.printData();
}