QItemDelegate中遇到的问题。

[yuanxiazai4]

使用QTreeView来显示数据，CTreeModeBase从QAbstractTableModel派生，

QModelIndex CTreeModeBase::index(int row, int column, const QModelIndex &parent) const
{
   if (TRUE == this->hasIndex(row, column, parent))
   {
      if (FALSE == parent.isValid())
      {
         CTreemodelNode* lpItem = m_lpTreeRoot->GetInfoByRow(row);
         return this->createIndex(row, column, lpItem);
      }       
      CTreemodelNode* lpItem = static_cast<CTreemodelNode*>(parent.internalPointer());
      if (NULL != lpItem)
      {
         CTreemodelNode* lpSubItem = lpItem->GetChildByIndex(row);
         return this->createIndex(row, column, lpSubItem);
      } 
   } 
   return QModelIndex();
}

QModelIndex CTreeModeBase::parent(const QModelIndex &index) const
{
   if (TRUE == index.isValid())
   {
      CTreemodelNode* lpchildItem = static_cast<CTreemodelNode*>(index.internalPointer());
      CTreemodelNode* lpparentItem = lpchildItem->GetParent();
      if (NULL != lpparentItem)
      {
         return this->createIndex(0, 0, lpparentItem);
      }
   }
   return QModelIndex();
}

这里的static_cast<CTreemodelNode*>(index.internalPointer())能正确换取。
初始化函数是这样写的

   m_lpTreeMember = new QTreeView(this);    
   m_lpTreeMember->setEditTriggers(QAbstractItemView::SelectedClicked);
   m_lpParamProxyModel = new QSortFilterProxyModel;
   m_lpParamProxyModel->setDynamicSortFilter(true);
   m_lpTreeMember->setModel(m_lpParamProxyModel);   

   QStringList strHeaderList;
   strHeaderList << tr("type") << tr("name");
   m_lpTreeModel = new CTreeModeBase(strHeaderList, m_lpTreeMember);
   m_lpParamProxyModel->setSourceModel(m_lpTreeModel); 
   m_lpTreeModel->SetRootInfo(m_lpRoot);
   m_lpTestDelegate = new CTestDelegate(m_lpTreeMember);    
   m_lpTreeMember->setItemDelegate(m_lpTestDelegate);
   m_lpTreeMember->show();

然后问题出来了。
CTestDelegate从QItemDelegate派生， 我想在createEditor函数中通过参数QModelIndex通过 static_cast<CTreemodelNode*>(index.internalPointer())获取信息，为什么获取到的信息是错误的。

QWidget* CTestDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
   if (0 == index.column())
   {
      CTreemodelNode* lpItem = static_cast<CTreemodelNode*>(index.internalPointer());
      if (PARAM_NAME_TYPE == lpItem->GetNodeType())
      {
         CDataEdit* lpEditor = new CDataEdit(parent); 
         return lpEditor;  
      }
      else if (ATTACH_NAME_TYPE == lpItem->GetNodeType())
      {
         return NULL;
      }  
   }
   return new QLineEdit(parent);
}

我是想通过获取的CTreemodelNode* lpItem中NodeType的不同，来实现生成不同的控件。
请问下应该怎么处理，或者有什么其他的方法达到需求？

[yuanxiazai4]

新学的QT。

[yuanxiazai4]

自己解决了。。

[zyq5945]