objects.h Example File

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 #ifndef OBJECTS_H
 #define OBJECTS_H

 #include <QWidget>

 class QVBoxLayout;

 class QSubWidget;

 class QParentWidget : public QWidget
 {
     Q_OBJECT
     Q_CLASSINFO("ClassID", "{d574a747-8016-46db-a07c-b2b4854ee75c}");
     Q_CLASSINFO("InterfaceID", "{4a30719d-d9c2-4659-9d16-67378209f822}");
     Q_CLASSINFO("EventsID", "{4a30719d-d9c2-4659-9d16-67378209f823}");
 public:
     QParentWidget(QWidget *parent = 0);

     QSize sizeHint() const;

 public slots:
     void createSubWidget( const QString &name );

     QSubWidget *subWidget( const QString &name );

 private:
     QVBoxLayout *vbox;
 };

 class QSubWidget : public QWidget
 {
     Q_OBJECT
     Q_PROPERTY( QString label READ label WRITE setLabel )

     Q_CLASSINFO("ClassID", "{850652f4-8f71-4f69-b745-bce241ccdc30}");
     Q_CLASSINFO("InterfaceID", "{2d76cc2f-3488-417a-83d6-debff88b3c3f}");
     Q_CLASSINFO("ToSuperClass", "QSubWidget");

 public:
     QSubWidget(QWidget *parent = 0, const QString &name = QString());

     void setLabel( const QString &text );
     QString label() const;

     QSize sizeHint() const;

 protected:
     void paintEvent( QPaintEvent *e );

 private:
     QString lbl;
 };

 #endif // OBJECTS_H