BOOL CtrfFolderColumn::RefreshData(CTreeCtrl* pTree, HTREEITEM hItem, CaRefreshTreeInfo* pInfo)
{
BOOL bOk = FALSE;
CTypedPtrList< CObList, CaDBObject* > lNew;
//
// Refresh only the branch has already been expanded:
if (pInfo && pInfo->GetAction() == CaRefreshTreeInfo::ACTION_REFRESH && !GetTreeCtrlData().IsAlreadyExpanded())
return TRUE;
CaLLQueryInfo* pQueryInfo = GetQueryInfo(NULL);
ASSERT (pQueryInfo);
if (!pQueryInfo)
return FALSE;
if (GetPfnCOMQueryObject())
bOk = GetPfnCOMQueryObject()(GetAptAccess(), pQueryInfo, lNew);
else
{
CmtSessionManager* pSessionManager = GetSessionManager();
ASSERT (pSessionManager);
if (!pSessionManager)
return FALSE;
if (GetPfnUserQueryObject())
bOk = GetPfnUserQueryObject()(pQueryInfo, lNew, pSessionManager);
else
bOk = INGRESII_llQueryObject (pQueryInfo, lNew, pSessionManager);
}
if (!bOk)
return FALSE;
//
// Mark all old object as being deleted:
CtrfItemData* pObj = NULL;
POSITION p = NULL, pos = m_listObject.GetHeadPosition();
while (pos != NULL)
{
pObj = m_listObject.GetNext (pos);
pObj->GetTreeCtrlData().SetState (CaTreeCtrlData::ITEM_DELETE);
}
//
// Add new Objects:
while (!lNew.IsEmpty())
{
CaColumn* pNew = (CaColumn*)lNew.RemoveHead();
CtrfItemData* pExist = SearchObject(pNew);
//
// The new queried object already exists in the old list, we destroy it !
if (pExist != NULL)
{
pExist->GetTreeCtrlData().SetState (CaTreeCtrlData::ITEM_EXIST);
delete pNew;
continue;
}
//
// New object that is not in the old list, add it to the list:
CtrfColumn* pNewObject = new CtrfColumn (pNew);
pNewObject->SetBackParent (this);
pNewObject->Initialize();
m_listObject.AddTail (pNewObject);
delete pNew;
}
//
// Refresh Sub-Branches ?
Display (pTree, hItem);
return TRUE;
}
//
// This function should call the query objects from the Static library ("INGRESII_llQueryObject") or
// from the COM Server ICAS.
BOOL CSqlqueryApp::INGRESII_QueryObject(CaLLQueryInfo* pInfo, CTypedPtrList<CObList, CaDBObject*>& listObject)
{
CaSessionManager& ssMgr = GetSessionManager();
BOOL bOk = INGRESII_llQueryObject (pInfo, listObject, &ssMgr);
return bOk;
}