Is it OK to use QSharedPointer in QListView?

[postb99]

Hello,

Following Qt model-view pattern, I created a "MyModel" class.

The library I'm working with retrieves data from a store and gives me a list of XImageObjectPtr, these are shared pointers (typedef... QSharedPointer).
The underlying object has some string or binary properties.

Can I use them as is to populate my QListView ? I tried, but get exception when I start my app... However I'm unable to find out the relevant information in crash log.

So my question is about direct use of QSharedPointer as a QListView item.

My model header:

class DicomImageModel : public QAbstractTableModel
 {
     Q_OBJECT
 public:
     DicomImageModel(QObject *parent = 0);
     int rowCount(const QModelIndex &parent = QModelIndex()) const ;
     int columnCount(const QModelIndex &parent = QModelIndex()) const;
     QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
 
     void addImage(const XImageObjectPtr image);
 private:
     std::vector<XImageObjectPtr> m_dicomImages;
 };

class DicomImageModel : public QAbstractTableModel
 {
     Q_OBJECT
 public:
     DicomImageModel(QObject *parent = 0);
     int rowCount(const QModelIndex &parent = QModelIndex()) const ;
     int columnCount(const QModelIndex &parent = QModelIndex()) const;
     QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;

     void addImage(const XImageObjectPtr image);
 private:
     std::vector<XImageObjectPtr> m_dicomImages;
 };

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and:

Use of this model:

DicomImageModel model;
    foreach (XObjectPtr obj, XContainer::instance()->findObjectsByClass(XObject::Image)) {
        XImageObjectPtr image = obj.dynamicCast<XImageObject>();
        xLogWarning(XLogRecord::Type_User, tr("ID: %1").arg(image->getId()));
        model.addImage(image);
    }
    m_listview->setModel(&model);
    m_mainWidget->layout()->addWidget(m_listview);

DicomImageModel model;
    foreach (XObjectPtr obj, XContainer::instance()->findObjectsByClass(XObject::Image)) {
        XImageObjectPtr image = obj.dynamicCast<XImageObject>();
        xLogWarning(XLogRecord::Type_User, tr("ID: %1").arg(image->getId()));
        model.addImage(image);
    }
    m_listview->setModel(&model);
    m_mainWidget->layout()->addWidget(m_listview);

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Thank you

[wysota]

Yes, it should be possible. How does your code look like and what are the errors you are getting?

[postb99]

It's working now, I just forgot to initialize the QListView with "new keyword" before passing it a model :-)