www.pudn.com > vc开发的精美界面.zip > BCGExCheckList.cpp

//******************************************************************************* 
// COPYRIGHT NOTES 
// --------------- 
// This source code is a part of BCGControlBar library. 
// You may use, compile or redistribute it as part of your application  
// for free. You cannot redistribute it as a part of a software development  
// library without the agreement of the author. If the sources are  
// distributed along with the application, you should leave the original  
// copyright notes in the source code without any changes. 
// This code can be used WITHOUT ANY WARRANTIES on your own risk. 
//  
// For the latest updates to this library, check my site: 
// http://welcome.to/bcgsoft 
//  
// Stas Levin  
//******************************************************************************* 
 
// BCGExCheckList.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "afxpriv.h" 
#include "BCGExCheckList.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CBCGExCheckList 
 
CBCGExCheckList::CBCGExCheckList() 
{ 
} 
//******************************************************************************************* 
CBCGExCheckList::~CBCGExCheckList() 
{ 
} 
 
BEGIN_MESSAGE_MAP(CBCGExCheckList, CCheckListBox) 
	//{{AFX_MSG_MAP(CBCGExCheckList) 
	ON_WM_LBUTTONDOWN() 
	ON_WM_KEYDOWN() 
	ON_WM_LBUTTONDBLCLK() 
	//}}AFX_MSG_MAP 
	ON_MESSAGE(LB_ADDSTRING, OnLBAddString) 
	ON_MESSAGE(LB_INSERTSTRING, OnLBInsertString) 
	ON_MESSAGE(LB_RESETCONTENT, OnLBResetContent) 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CBCGExCheckList message handlers 
 
void CBCGExCheckList::OnLButtonDown(UINT nFlags, CPoint point) 
{ 
	SetFocus(); 
 
	// determine where the click is 
	BOOL bInCheck; 
	int nIndex = CheckFromPoint(point, bInCheck); 
 
	if (bInCheck && nIndex != LB_ERR && !IsCheckEnabled (nIndex)) 
	{ 
		MessageBeep ((UINT) -1); 
		return; 
	} 
	 
	CCheckListBox::OnLButtonDown(nFlags, point); 
} 
//******************************************************************************************* 
void CBCGExCheckList::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)  
{ 
	if (nChar == VK_SPACE) 
	{ 
		int nIndex = GetCaretIndex(); 
		if (nIndex != LB_ERR && !IsCheckEnabled (nIndex)) 
		{ 
			MessageBeep ((UINT) -1); 
			return; 
		} 
	} 
	 
	CCheckListBox::OnKeyDown(nChar, nRepCnt, nFlags); 
} 
//******************************************************************************************* 
LRESULT CBCGExCheckList::OnLBAddString(WPARAM wParam, LPARAM lParam) 
{ 
	LRESULT lRes = CCheckListBox::OnLBAddString(wParam, lParam); 
	OnNewString ((int) lRes); 
	return lRes; 
} 
//******************************************************************************************* 
LRESULT CBCGExCheckList::OnLBInsertString(WPARAM wParam, LPARAM lParam) 
{ 
	LRESULT lRes = CCheckListBox::OnLBInsertString(wParam, lParam); 
	OnNewString ((int) lRes); 
	return lRes; 
} 
//******************************************************************************************* 
LRESULT CBCGExCheckList::OnLBResetContent(WPARAM /*wParam*/, LPARAM /*lParam*/) 
{ 
	m_arCheckData.SetSize (0); 
	return Default (); 
} 
//******************************************************************************************* 
void CBCGExCheckList::EnableCheck (int nIndex, BOOL bEnable) 
{ 
	ASSERT (nIndex >= 0 && nIndex < m_arCheckData.GetSize ()); 
	m_arCheckData.SetAt (nIndex, bEnable); 
} 
//******************************************************************************************* 
BOOL CBCGExCheckList::IsCheckEnabled (int nIndex) const 
{ 
	ASSERT (nIndex >= 0 && nIndex < m_arCheckData.GetSize ()); 
	return m_arCheckData.GetAt (nIndex); 
} 
//******************************************************************************************* 
void CBCGExCheckList::OnNewString (int iIndex) 
{ 
	if (iIndex >= 0) 
	{ 
		int iSize = GetCount (); 
		m_arCheckData.SetSize (iSize); 
 
		for (int i = iSize - 1; i > iIndex; i --) 
		{ 
			m_arCheckData.SetAt (i, m_arCheckData.GetAt (i - 1)); 
		} 
		 
		m_arCheckData.SetAt (iIndex, TRUE);	// Enabled by default 
	} 
} 
//**************************************************************************************** 
void CBCGExCheckList::OnLButtonDblClk(UINT nFlags, CPoint point)  
{ 
	// determine where the click is 
	BOOL bInCheck; 
	int nIndex = CheckFromPoint(point, bInCheck); 
 
	if (bInCheck && nIndex != LB_ERR && !IsCheckEnabled (nIndex)) 
	{ 
		MessageBeep ((UINT) -1); 
		return; 
	} 
	 
	CCheckListBox::OnLButtonDblClk(nFlags, point); 
	GetParent()->SendMessage(WM_COMMAND, 
                            MAKEWPARAM(GetDlgCtrlID(), CLBN_CHKCHANGE), 
                            (LPARAM)m_hWnd); 
}