#include <QtGui/QApplication>
#include <QMainWindow>
#include <QDockWidget>
#include <QVBoxLayout>
#include <QAbstractItemView>
#include <QTimer>
#include <QDialog>

/*class View : public QAbstractItemView
{
    Q_OBJECT
public:
    explicit View(QWidget *parent = 0): QAbstractItemView(parent){
        Q_ASSERT(viewport());
        viewport()->setAttribute(Qt::WA_StaticContents,true);
    }
    ~View(){
    }

    QRect visualRect(const QModelIndex &) const{ return QRect();}

    void scrollTo(const QModelIndex &, ScrollHint ) {}
    QModelIndex indexAt(const QPoint &) const { return QModelIndex();}

    QModelIndex moveCursor(CursorAction ,
                           Qt::KeyboardModifiers ) { return QModelIndex();}

    int horizontalOffset() const{ return 0;}
    int verticalOffset() const { return 0;}

    bool isIndexHidden(const QModelIndex &) const { return true;}

    void setSelection(const QRect &, QItemSelectionModel::SelectionFlags ) {}
    QRegion visualRegionForSelection(const QItemSelection &) const { return QRegion();}
};*/

class View: public QWidget
{
    Q_OBJECT
public:
    explicit View(QWidget *parent = 0): QWidget(parent){
        setAttribute(Qt::WA_StaticContents,true);
    }
};

class MainWindow: public QMainWindow
{
Q_OBJECT
public:
    MainWindow(){
        QDockWidget *dock=new QDockWidget(this);
        {
            view=new View(dock);
            dock->setWidget(view);
        }
        dock->setFloating(true);

        QTimer::singleShot(1000,this,SLOT(timeout()));
    }
public slots:
    void timeout()
    {
        QDialog d;

        QTimer::singleShot(1000,&d,SLOT(accept()));
        d.exec();
        Q_ASSERT(view);
        delete view;
    }
protected:
    View *view;
};

#include "main.moc"

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    MainWindow *w=new MainWindow();
    w->show();
    
    return a.exec();
}