public override QVariant Data(Qyoto.QModelIndex index, int role)
 {
     if (index.IsValid())
     {
         Account account = (Account)index.InternalPointer();
         if (account != null)
         {
             if (index.Column() == 0)
             {
                 if (role == (int)Qt.ItemDataRole.DisplayRole)
                 {
                     return(account.Jid.ToString());
                 }
                 else if (role == (int)Qt.ItemDataRole.CheckStateRole)
                 {
                     return((int)Qt.CheckState.Checked);
                 }
             }
             else if (index.Column() == 1)
             {
                 if (role == (int)Qt.ItemDataRole.DisplayRole)
                 {
                     return(account.ConnectionState.ToString());
                 }
             }
         }
     }
     return(new QVariant());
 }
 public override uint Flags(Qyoto.QModelIndex index)
 {
     if (index.Column() == 0)
     {
         return((uint)Qt.ItemFlag.ItemIsUserCheckable |
                (uint)Qt.ItemFlag.ItemIsSelectable |
                (uint)Qt.ItemFlag.ItemIsEnabled);
     }
     else
     {
         return((uint)Qt.ItemFlag.ItemIsSelectable);
     }
 }
            public override int RowCount(QModelIndex parent)
            {
                string start = "Row count of " + this.SerializeModelIndex(parent) + " requested";

                SolutionItem parentItem;
                if (parent.Column() > 0)
                {
                    m_Log.Debug(start + " (answer: 0).");
                    return 0;
                }

                if (!parent.IsValid())
                    parentItem = this.m_RootItem;
                else
                    parentItem = parent.InternalPointer() as SolutionItem;

                m_Log.Debug(start + " (answer: " + parentItem.Count + ").");
                return parentItem.Count;
            }
            public override QVariant Data(QModelIndex index, int role)
            {
                string start = "Data of " + this.SerializeModelIndex(index) + " requested with role " + role;

                if (!index.IsValid())
                {
                    m_Log.Debug(start + " (answer: empty).");
                    return new QVariant();
                }

                if (role != (int)ItemDataRole.DisplayRole && role != (int)ItemDataRole.DecorationRole)
                {
                    m_Log.Debug(start + " (answer: empty).");
                    return new QVariant();
                }

                if (index.Column() == 0)
                {
                    if (role == (int)ItemDataRole.DisplayRole)
                    {
                        m_Log.Debug(start + " (answer: \"" + (index.InternalPointer() as SolutionItem).Text + "\").");
                        return (index.InternalPointer() as SolutionItem).Text;
                    }
                    else if (role ==(int)ItemDataRole.DecorationRole)
                    {
                        string key = (index.InternalPointer() as SolutionItem).ImageKey;
                        System.Drawing.Image image = this.m_ExplorerTool.m_LinuxImageList[key];
                        if (image == null)
                            m_Log.Error("No association icon found for image key '" + key + "'.");
                        else
                        {
                            m_Log.Debug(start + " (answer: <qicon>).");
                            return LinuxImageList.ConvertToQIcon(image);
                        }
                    }
                }

                m_Log.Debug(start + " (answer: empty).");
                return new QVariant();
            }