www.pudn.com > SNMP_vc.rar > ListCtrlEx.cpp

// ListCtrlEx.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "Monitor.h" 
#include "ListCtrlEx.h" 
#include "ListCellEdit.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CListCtrlEx 
 
CListCtrlEx::CListCtrlEx(BOOL allusr) 
{ 
	forAllUser = allusr; 
} 
 
CListCtrlEx::~CListCtrlEx() 
{ 
} 
 
 
BEGIN_MESSAGE_MAP(CListCtrlEx, CListCtrl) 
	//{{AFX_MSG_MAP(CListCtrlEx) 
	ON_NOTIFY_REFLECT(NM_CUSTOMDRAW, OnCustomDraw) 
	ON_WM_LBUTTONDOWN() 
	ON_WM_VSCROLL() 
	ON_WM_HSCROLL() 
	ON_WM_SIZE() 
	ON_NOTIFY_REFLECT(LVN_ENDLABELEDIT, OnEndlabeledit) 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
 
/////////////////////////////////////////////////////////////////////////////// 
// CListCtrlEx message handlers 
// OnCustomDraw 
void CListCtrlEx::OnCustomDraw(NMHDR* pNMHDR, LRESULT* pResult) 
{ 
	NMLVCUSTOMDRAW* pLVCD = reinterpret_cast(pNMHDR); 
 
	// Take the default processing unless we set this to something else below. 
	*pResult = CDRF_DODEFAULT; 
 
	// First thing - check the draw stage. If it's the control's prepaint 
	// stage, then tell Windows we want messages for every item. 
 
	if (pLVCD->nmcd.dwDrawStage == CDDS_PREPAINT) 
	{ 
		*pResult = CDRF_NOTIFYITEMDRAW; 
	} 
	else if (pLVCD->nmcd.dwDrawStage == CDDS_ITEMPREPAINT) 
	{ 
		// This is the notification message for an item.  We'll request 
		// notifications before each subitem's prepaint stage. 
 
		*pResult = CDRF_NOTIFYSUBITEMDRAW; 
	} 
	/* 
	else if (pLVCD->nmcd.dwDrawStage == (CDDS_ITEMPREPAINT | CDDS_SUBITEM)) 
	{ 
		// This is the prepaint stage for a subitem. Here's where we set the 
		// item's text and background colors. Our return value will tell 
		// Windows to draw the subitem itself, but it will use the new colors 
		// we set here. 
 
		int nItem = static_cast (pLVCD->nmcd.dwItemSpec); 
		int nSubItem = pLVCD->iSubItem; 
	} 
	*/ 
} 
 
 
void CListCtrlEx::OnLButtonDown(UINT nFlags, CPoint point)  
{ 
	CListCtrl::OnLButtonDown(nFlags, point); 
	// TODO: Add your message handler code here and/or call default 
    int nItem; 
    int nSubItem; 
	if (!((CMonitorApp*)AfxGetApp())->isRoot && !forAllUser ) 
	{ 
		return; 
	} 
    if ((nItem = HitTestEx (point, nSubItem)) != -1) 
    { 
		EditSubItem(nItem, nSubItem); 
	} 
} 
 
int CListCtrlEx::HitTestEx (CPoint& Point, int& nSubItem) 
{ 
	nSubItem = 0; 
	int ColumnNum = 0; 
    int Row = HitTest (Point, NULL); 
	 
    // Make sure that the ListView is in LVS_REPORT 
    if ((GetWindowLong (m_hWnd, GWL_STYLE) & LVS_TYPEMASK) != LVS_REPORT) 
		return Row; 
	 
    // Get the top and bottom row visible 
    Row = GetTopIndex(); 
    int Bottom = Row + GetCountPerPage(); 
    if (Bottom > GetItemCount()) 
		Bottom = GetItemCount(); 
     
    // Get the number of columns 
    CHeaderCtrl* pHeader = (CHeaderCtrl*) GetDlgItem(0); 
    int nColumnCount = pHeader->GetItemCount(); 
	 
    // Loop through the visible rows 
    for(; Row <= Bottom; Row++) 
    { 
		// Get bounding rect of item and check whether point falls in it. 
		CRect Rect; 
		GetItemRect (Row, &Rect, LVIR_BOUNDS); 
		if (Rect.PtInRect (Point)) 
		{ 
			// Now find the column 
			for (ColumnNum = 0; ColumnNum < nColumnCount; ColumnNum++) 
			{ 
				int ColWidth = GetColumnWidth (ColumnNum); 
				if (Point.x >= Rect.left && Point.x <= (Rect.left + ColWidth)) 
				{ 
					nSubItem = ColumnNum; 
					return Row; 
				} 
				Rect.left += ColWidth; 
			} 
		} 
    } 
 
    return -1; 
} 
 
CEdit* CListCtrlEx::EditSubItem(int nItem, int nSubItem) 
{ 
    // The returned pointer should not be saved 
 
    // Make sure that the item is visible 
    if (!EnsureVisible (nItem, TRUE)) return NULL; 
 
    // Make sure that nCol is valid 
    CHeaderCtrl* pHeader = (CHeaderCtrl*) GetDlgItem(0); 
    int nColumnCount = pHeader->GetItemCount(); 
    if (nSubItem >= nColumnCount || GetColumnWidth (nSubItem) < 5) 
		return NULL; 
 
    // Get the column offset 
    int Offset = 0; 
    for (int iColumn = 0; iColumn < nSubItem; iColumn++) 
		Offset += GetColumnWidth (iColumn); 
 
    CRect Rect; 
    GetItemRect (nItem, &Rect, LVIR_BOUNDS); 
 
    // Now scroll if we need to expose the column 
    CRect ClientRect; 
    GetClientRect (&ClientRect); 
    if (Offset + Rect.left < 0 || Offset + Rect.left > ClientRect.right) 
    { 
		CSize Size; 
		if (Offset + Rect.left > 0) 
			Size.cx = -(Offset - Rect.left); 
		else 
			Size.cx = Offset - Rect.left; 
		Size.cy = 0; 
		Scroll (Size); 
		Rect.left -= Size.cx; 
    } 
 
    // Get nSubItem alignment 
    LV_COLUMN lvCol; 
    lvCol.mask = LVCF_FMT; 
    GetColumn (nSubItem, &lvCol); 
    DWORD dwStyle; 
    if ((lvCol.fmt & LVCFMT_JUSTIFYMASK) == LVCFMT_LEFT) 
		dwStyle = ES_LEFT; 
    else if ((lvCol.fmt & LVCFMT_JUSTIFYMASK) == LVCFMT_RIGHT) 
		dwStyle = ES_RIGHT; 
    else dwStyle = ES_CENTER; 
	 
	//wStyle |= ES_LOWERCASE; 
 
    Rect.left += Offset+4; 
    Rect.right = Rect.left + GetColumnWidth (nSubItem) - 3; 
    if (Rect.right > ClientRect.right) 
		Rect.right = ClientRect.right; 
	dwStyle |= WS_BORDER | WS_CHILD | WS_VISIBLE | ES_AUTOHSCROLL; 
	//dwStyle = GetStyle(); 
    CEdit *pEdit = new CListCellEdit (nItem, nSubItem, GetItemText (nItem, nSubItem)); 
    pEdit->Create(dwStyle, Rect, this, IDC_CtrlList); 
    return pEdit; 
} 
 
void CListCtrlEx::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)  
{ 
	// TODO: Add your message handler code here and/or call default 
    if (GetFocus() != this) SetFocus(); 
	 
	CListCtrl::OnVScroll(nSBCode, nPos, pScrollBar); 
} 
 
void CListCtrlEx::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)  
{ 
	// TODO: Add your message handler code here and/or call default 
    if (GetFocus() != this) SetFocus(); 
 
	CListCtrl::OnHScroll(nSBCode, nPos, pScrollBar); 
} 
 
void CListCtrlEx::OnSize(UINT nType, int cx, int cy)  
{ 
	CListCtrl::OnSize(nType, cx, cy); 
	 
	// TODO: Add your message handler code here 
	 
} 
 
void CListCtrlEx::OnEndlabeledit(NMHDR* pNMHDR, LRESULT* pResult)  
{ 
    LV_DISPINFO *plvDispInfo = (LV_DISPINFO *)pNMHDR; 
    LV_ITEM	*plvItem = &plvDispInfo->item; 
 
    if (plvItem->pszText != NULL) 
    { 
		SetItemText (plvItem->iItem, plvItem->iSubItem, plvItem->pszText); 
    } 
    *pResult = FALSE; 
}