home *** CD-ROM | disk | FTP | other *** search
- // ListCtrl.cpp : implementation file
- //
- // this class is an override of the default clistctrl
- // this version provides handlers to allow modifying the
- // subitem on repeated selection of the item in the list
-
- // This is a part of the Microsoft Foundation Classes C++ library.
- // Copyright (C) 1992-1998 Microsoft Corporation
- // All rights reserved.
- //
- // This source code is only intended as a supplement to the
- // Microsoft Foundation Classes Reference and related
- // electronic documentation provided with the library.
- // See these sources for detailed information regarding the
- // Microsoft Foundation Classes product.
-
- #include "stdafx.h"
- #include "DAOTable.h"
- #include "ListCtrl.h"
-
- #ifdef _DEBUG
- #define new DEBUG_NEW
- #undef THIS_FILE
- static char THIS_FILE[] = __FILE__;
- #endif
-
- /////////////////////////////////////////////////////////////////////////////
- // CFieldListCtrl
-
- CFieldListCtrl::CFieldListCtrl()
- {
- }
-
- CFieldListCtrl::~CFieldListCtrl()
- {
- }
-
-
- BEGIN_MESSAGE_MAP(CFieldListCtrl, CListCtrl)
- //{{AFX_MSG_MAP(CFieldListCtrl)
- ON_WM_LBUTTONDOWN()
- //}}AFX_MSG_MAP
- END_MESSAGE_MAP()
-
- /////////////////////////////////////////////////////////////////////////////
- // CFieldListCtrl message handlers
-
- // if you press the button over an item, then toggle the subitem
- // text between "", "ascending", and "descending" for index sort order
- // specification
- void CFieldListCtrl::OnLButtonDown(UINT nFlags, CPoint point)
- {
- // what item did we select
- UINT flags;
- int item = HitTest(point, &flags);
-
- // if an item is actually selected, then process
- if (item != -1)
- {
- // get the item's current selection state based on subitem text
- CString text = GetItemText(item, 1);
-
- // if selected, then modify the sub item text
- if (text != "")
- {
- // if already ascending, then descending is next
- if (text == _T("ascending"))
- {
- SetItemText(item, 1, _T("descending"));
- SetItemState(item, 1, LVIS_SELECTED);
- CListCtrl::OnLButtonDown(nFlags, point);
- }
- else // descending goes to no selection or text
- {
- SetItemText(item, 1, _T(""));
- SetItemState(item, 0, LVIS_SELECTED);
- }
- }
- else // if no selection at all, then 1st state is ascending
- {
- SetItemText(item, 1, _T("ascending"));
- SetItemState(item, 1, LVIS_SELECTED);
- CListCtrl::OnLButtonDown(nFlags, point);
- }
- }
- }
-