QMidiSubwindow, addSubwindow using QsharedPointer

[Speerfish]

Hello everybody,
for my program i use Qsubwindow
i did write a panel class with inherits QMidiSubwindow

class MainWindow;
 
class panel : public QMdiSubWindow
{
    Q_OBJECT
public:
    panel(QPoint Position,QPoint Dimension); /**Constructor*/
    ~panel();                                                 /**Destructor*/
private:
 
protected:
};
 
#endif // PANEL_H

class MainWindow;

class panel : public QMdiSubWindow
{
    Q_OBJECT
public:
    panel(QPoint Position,QPoint Dimension); /**Constructor*/
    ~panel();                                                 /**Destructor*/
private:

protected:
};

#endif // PANEL_H

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in my mainwindow.h i did create a sharePointer of the panel class

class MainWindow : public QMainWindow, public grahicsEnum{
    Q_OBJECT
public:
    MainWindow();
    ~MainWindow();
protected:
    void closeEvent(QCloseEvent *event);
    void changeEvent(QEvent *event);
    bool eventFilter(QObject *obj, QEvent *event);
 
private slots:
 
signals:
 
private:
    QSharedPointer<panel> mypanel;
    panel                       *MyTest;
 
};

class MainWindow : public QMainWindow, public grahicsEnum{
    Q_OBJECT
public:
    MainWindow();
    ~MainWindow();
protected:
    void closeEvent(QCloseEvent *event);
    void changeEvent(QEvent *event);
    bool eventFilter(QObject *obj, QEvent *event);

private slots:

signals:

private:
    QSharedPointer<panel> mypanel;
    panel                       *MyTest;

};

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and in the mainwindow.cpp

MainWindow::MainWindow(){
    //show the application in full screen mode
    showFullScreen();
    //Window stays on top at any time
    setWindowFlags(Qt::WindowStaysOnTopHint);
    QMdiArea* area = new QMdiArea();
    //set the policy for the application
    area->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Expanding);
    //create all the panel instances
 
    MyTest                       = new panel(QPoint(400,600), //Position
                                             QPoint(1000,100));//Dimension
 
    mypanel = QSharedPointer<panel>(new panel(QPoint(400,600),QPoint(100,100)));
 
    area->addSubWindow(MyTest);       // works perfectly
    area->addSubWindow(mypanel);     // does not work

MainWindow::MainWindow(){
    //show the application in full screen mode
    showFullScreen();
    //Window stays on top at any time
    setWindowFlags(Qt::WindowStaysOnTopHint);
    QMdiArea* area = new QMdiArea();
    //set the policy for the application
    area->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Expanding);
    //create all the panel instances

    MyTest                       = new panel(QPoint(400,600), //Position
                                             QPoint(1000,100));//Dimension

    mypanel = QSharedPointer<panel>(new panel(QPoint(400,600),QPoint(100,100)));

    area->addSubWindow(MyTest);       // works perfectly
    area->addSubWindow(mypanel);     // does not work

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add Subwindow expects a pointer to QWidget, how can i use a tempalte here.
......
Help is appreciated..

[anda_skoa]

I don't think it is wise to put a widget into a QSharedPointer and give it a parent. This will only work if the QSharedPointer deletes first.
In your case you have to guarantee that MainWindow is destroyed before the QMdiArea instance is.

Any specific reason why you wanted to use a QSharedPointer here in the first place?

Anyway, the answer to your question is QSharedPointer::data()

Cheers,
_