How to Drag and Drop working with tableview?

I have tried to implement moving rows with by drag and drop in tableview with my custom model. I have read everything I have found regarding this, and I just don't get it to work with tableview. It's working perfectly with listview.

In tableview row is copied correctly, but removerows is not called. What I am missing? If I have to call removerows directly where should I do it. I would like to be able to use the same model with listview and tableview. I feel that I am missing something trivial, but I just don't get what.

Here is simplified example:

Code:

#include <QtGui>
#include "stringlistmodel.h"
#include <QAbstractItemModel>
 
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
 
    QStringList numbers;
    numbers << "One" << "Two" << "Three" << "Four" << "Five";
 
    QAbstractItemModel *model = new StringListModel(numbers);
    QTableView *tableView = new QTableView;
    QListView *listView = new QListView;
    tableView->setSelectionMode(QAbstractItemView::ExtendedSelection);
    tableView->setDragEnabled(true);
    tableView->setAcceptDrops(true);
    tableView->setDropIndicatorShown(true);
    tableView->setModel(model);
    tableView->setDefaultDropAction(Qt::MoveAction);
    tableView->show();
    listView->setDragEnabled(true);
    listView->setAcceptDrops(true);
    listView->setModel(model);
    listView->setDefaultDropAction(Qt::MoveAction);
    listView->show();
    return app.exec();
 }

This is my model header:

Code:

#ifndef STRINGLISTMODEL_H
#define STRINGLISTMODEL_H
 
#include <QAbstractListModel>
#include <QStringList>
#include <QMimeData>
 
class StringListModel : public QAbstractListModel
{
    Q_OBJECT
public:
    StringListModel(const QStringList &strings, QObject *parent = 0);
    int rowCount(const QModelIndex &parent = QModelIndex()) const;
    QVariant data(const QModelIndex &index, int role) const;
    QVariant headerData(int section, Qt::Orientation orientation,
                        int role = Qt::DisplayRole) const;
    Qt::ItemFlags flags(const QModelIndex &index) const;
    bool setData(const QModelIndex &index, const QVariant &value,
                      int role = Qt::EditRole);
    bool insertRows(int position, int rows, const QModelIndex &index = QModelIndex());
    bool removeRows(int position, int rows, const QModelIndex &index = QModelIndex());
 
    Qt::DropActions supportedDropActions() const;
    QStringList mimeTypes() const;
    QMimeData *mimeData(const QModelIndexList &indexes) const;
    bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent);
private:
    QStringList stringList;
 
signals:
 
public slots:
 
};
 
#endif // STRINGLISTMODEL_H

and this is my model source:

Code:

#include "stringlistmodel.h"
#include <QStringListModel>
#include <QDebug>
 
StringListModel::StringListModel(const QStringList &strings, QObject *parent)
        : QAbstractListModel(parent), stringList(strings)
{
}
 
int StringListModel::rowCount(const QModelIndex &parent) const
 {
     return stringList.count();
 }
 
QVariant StringListModel::data(const QModelIndex &index, int role) const
{
    if (!index.isValid())
        return QVariant();
 
    if (index.row() >= stringList.size())
        return QVariant();
 
    if (role == Qt::DisplayRole || role == Qt::EditRole)
        return stringList.at(index.row());
    else
        return QVariant();
}
 
QVariant StringListModel::headerData(int section, Qt::Orientation orientation,
                                      int role) const
 {
     if (role != Qt::DisplayRole)
         return QVariant();
 
     if (orientation == Qt::Horizontal)
         return QString("Column %1").arg(section);
     else
         return QString("Row %1").arg(section);
}
 
Qt::ItemFlags StringListModel::flags(const QModelIndex &index) const
 {
    Qt::ItemFlags defaultFlags = QAbstractListModel::flags(index);
 
    if (index.isValid())
        return Qt::ItemIsDragEnabled | Qt::ItemIsDropEnabled | defaultFlags;
    else
        return Qt::ItemIsDropEnabled | defaultFlags;
 }
 
bool StringListModel::setData(const QModelIndex &index,
                               const QVariant &value, int role)
 {
     if (index.isValid() && role == Qt::EditRole) {
 
         stringList.replace(index.row(), value.toString());
         emit dataChanged(index, index);
         return true;
     }
     return false;
 }
 
bool StringListModel::insertRows(int position, int rows, const QModelIndex &parent)
 {
     beginInsertRows(QModelIndex(), position, position+rows-1);
 
     for (int row = 0; row < rows; ++row) {
         stringList.insert(position, "");
     }
 
     endInsertRows();
     return true;
 }
 
bool StringListModel::removeRows(int position, int rows, const QModelIndex &parent)
 {
     beginRemoveRows(QModelIndex(), position, position+rows-1);
 
     for (int row = 0; row < rows; ++row) {
         stringList.removeAt(position);
     }
 
     endRemoveRows();
     return true;
 }
 
Qt::DropActions StringListModel::supportedDropActions() const
 {
     return Qt::CopyAction | Qt::MoveAction;
 }
 
QStringList StringListModel::mimeTypes() const
{
    QStringList types;
    types << "application/vnd.text.list";
    return types;
}
 
QMimeData *StringListModel::mimeData(const QModelIndexList &indexes) const
 {
     QMimeData *mimeData = new QMimeData();
     QByteArray encodedData;
 
     QDataStream stream(&encodedData, QIODevice::WriteOnly);
 
     foreach (const QModelIndex &index, indexes) {
         if (index.isValid()) {
             QString text = data(index, Qt::DisplayRole).toString();
             stream << text;
         }
     }
 
     mimeData->setData("application/vnd.text.list", encodedData);
     return mimeData;
 }
 
bool StringListModel::dropMimeData(const QMimeData *data,
    Qt::DropAction action, int row, int column, const QModelIndex &parent)
{
    qDebug() << action;
    if (action == Qt::IgnoreAction)
        return true;
 
    if (!data->hasFormat("application/vnd.text.list"))
        return false;
 
    if (column > 0)
        return false;
    int beginRow;
 
    if (row != -1)
        beginRow = row;
    else if (parent.isValid())
        beginRow = parent.row();
    else
        beginRow = rowCount(QModelIndex());
    QByteArray encodedData = data->data("application/vnd.text.list");
    QDataStream stream(&encodedData, QIODevice::ReadOnly);
    QStringList newItems;
    int rows = 0;
 
    while (!stream.atEnd()) {
        QString text;
        stream >> text;
        newItems << text;
        ++rows;
    }
    insertRows(beginRow, rows, QModelIndex());
    foreach (const QString &text, newItems) {
        QModelIndex idx = index(beginRow, 0, QModelIndex());
        setData(idx, text);
        beginRow++;
    }
 
    return true;
}