www.pudn.com > superlistctrl.rar > listeditctrl.cpp

// ListEditCtrl.cpp : implementation file 
// 
 
// The code contained in this file is based on the original 
// CInPlaceEdit from http://www.codeguru.com/listview/edit_subitems.shtml 
 
#include "stdafx.h" 
#include "SuperGrid.h" 
#include "ListEditCtrl.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CListEditCtrl 
BEGIN_MESSAGE_MAP(CListEditCtrl, CEdit) 
	//{{AFX_MSG_MAP(CListEditCtrl) 
	ON_WM_KILLFOCUS() 
	ON_WM_NCDESTROY() 
	ON_WM_CHAR() 
	ON_WM_CREATE() 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CListEditCtrl message handlers 
 
CListEditCtrl::CListEditCtrl(int iItem, int iSubItem, CString sInitText):m_strInitText(sInitText) 
{	 
	m_iItem = iItem; 
	m_iSubItem = iSubItem; 
	m_bVK_ESCAPE = 0; 
} 
 
int CListEditCtrl::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{ 
	if (CEdit::OnCreate(lpCreateStruct) == -1)		 
		return -1;	 
 
	CFont* font = GetParent()->GetFont(); 
	SetFont(font); 
	SetWindowText(m_strInitText); 
	SetFocus();	 
	SetSel(0, 0); 
	return 0; 
} 
 
BOOL CListEditCtrl::PreTranslateMessage(MSG* pMsg) 
{ 
	if( pMsg->message == WM_KEYDOWN )	 
	{		 
		if(pMsg->wParam == VK_RETURN || pMsg->wParam == VK_DELETE || pMsg->wParam == VK_ESCAPE || GetKeyState( VK_CONTROL)) 
		{			 
			::TranslateMessage(pMsg); 
			::DispatchMessage(pMsg); 
			return 1; 
		}	 
	} 
	return CEdit::PreTranslateMessage(pMsg); 
} 
 
 
void CListEditCtrl::OnKillFocus(CWnd* pNewWnd) 
{	 
	CEdit::OnKillFocus(pNewWnd); 
 
	CString str;	GetWindowText(str); 
 
	// Send Notification to parent of ListView ctrl	 
	LV_DISPINFO lvDispInfo; 
	lvDispInfo.hdr.hwndFrom = GetParent()->m_hWnd; 
	lvDispInfo.hdr.idFrom = GetDlgCtrlID();	 
	lvDispInfo.hdr.code = LVN_ENDLABELEDIT; 
	lvDispInfo.item.mask = LVIF_TEXT;	 
	lvDispInfo.item.iItem = m_iItem; 
	lvDispInfo.item.iSubItem = m_iSubItem; 
	lvDispInfo.item.pszText = m_bVK_ESCAPE ? NULL : LPTSTR((LPCTSTR)str); 
	lvDispInfo.item.cchTextMax = str.GetLength(); 
	GetParent()->GetParent()->SendMessage( WM_NOTIFY, GetParent()->GetDlgCtrlID(),(LPARAM)&lvDispInfo); 
	DestroyWindow(); 
} 
 
 
void CListEditCtrl::OnNcDestroy() 
{ 
	CEdit::OnNcDestroy();	 
	delete this; 
} 
 
 
void CListEditCtrl::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags) 
{ 
	if( nChar == VK_ESCAPE || nChar == VK_RETURN)	 
	{		 
		if( nChar == VK_ESCAPE) 
			m_bVK_ESCAPE = 1;		 
		GetParent()->SetFocus(); 
		return;	 
	} 
 
	CEdit::OnChar(nChar, nRepCnt, nFlags);	 
	// Resize edit control if needed 
	// Get text extent	 
	CString str;	 
	GetWindowText( str );	 
	CWindowDC dc(this); 
	CFont *pFont = GetParent()->GetFont(); 
	CFont *pFontDC = dc.SelectObject(pFont); 
	CSize size = dc.GetTextExtent(str);	 
	dc.SelectObject(pFontDC); 
	size.cx += 5; // add some extra buffer	 
	// Get client rect 
	CRect rect, rcParent;	 
	GetClientRect(&rect); 
	GetParent()->GetClientRect(&rcParent); 
	// Transform rect to parent coordinates	 
	ClientToScreen(&rect); 
	GetParent()->ScreenToClient(&rect); 
	// Check whether control needs to be resized 
	// and whether there is space to grow	 
	if(size.cx > rect.Width())	 
	{ 
		if(size.cx + rect.left < rcParent.right) 
			rect.right = rect.left + size.cx;		 
		else			 
			rect.right = rcParent.right; 
		MoveWindow(&rect);	 
	} 
}