objects.h Example File
^{activeqt/hierarchy/objects.h}

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    **
    ** Copyright (C) 1992-2005 Trolltech AS. All rights reserved.
    **
    ** This file is part of the documentation of the Qt Toolkit.
    **
    ** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
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    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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    #ifndef OBJECTS_H
    #define OBJECTS_H

    #include <qwidget.h>

    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}");
    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