numericedit.cpp

一个通过USB->UART读取C8051F060的程序

// NumericEdit.cpp : implementation file
//

#include "stdafx.h"
#include "NumericEdit.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif



////////////////////////////////////////////////////////////////////////////////////////////////////////
#define  Epsl  0.000001

//小于: -1
//属于: 0
//大于: 1
int   CalcOutRange(float fMinVal, float fMaxVal, float Val)
{
		if ((Val - fMaxVal) > Epsl)	//超出最大值
			return 1;

		if ((fMinVal - Val) > Epsl)	//超出最小值
			return -1;
		
		if ( ((int)(1000*fMinVal) <= (int)(1000*Val)) && ((int)(1000*fMaxVal) >= (int)(1000*Val)) )	//属于
			return 0;

		return  0;
}

int   CalcOutRange(int  nMinVal, int  nMaxVal, int Val)
{
		if (Val < nMinVal)			//超出最小值
			return -1;

		if (nMinVal <= Val && nMaxVal >= Val)	//属于
			return 0;

		if (Val > nMaxVal)			//超出最大值
			return 1;

		return  0;
}


//////////////////////////////////////////////////////////////////////////
//
void   CNumericEdit::CheckRange()
{
		//////////////////////////////////////////////////////////////////////////////////////////////////////////////
		int nSelfVal   = 0;
		float fSelfVal = 0;

		CString  rString;
		this->GetWindowText(rString);

		if (m_sInnerObj.sType == 1)		/*整形*/
			nSelfVal = ::atol(rString);
		else
			fSelfVal = ::atof(rString);	/*浮点*/
		
		//////////////////////////////////////////////////////////////////////////////////////////////////////////////
		//设定合理量程
		char   szBuff[32];
		if (m_sInnerObj.sType == 1)		/*整形*/
		{
				if (::CalcOutRange(m_sInnerObj.m_RngVal_Min.nIVal, m_sInnerObj.m_RngVal_Max.nIVal, nSelfVal) == 1)
				{
						::sprintf(szBuff, "%d", m_sInnerObj.m_RngVal_Max.nIVal);
						this->SetWindowText((LPCTSTR)szBuff);
				}
				if (::CalcOutRange(m_sInnerObj.m_RngVal_Min.nIVal, m_sInnerObj.m_RngVal_Max.nIVal, nSelfVal) == -1)
				{
						::sprintf(szBuff, "%d", m_sInnerObj.m_RngVal_Min.nIVal);
						this->SetWindowText((LPCTSTR)szBuff);
				}
		}
		else		/*浮点*/
		{
				if (::CalcOutRange(m_sInnerObj.m_RngVal_Min.nFVal, m_sInnerObj.m_RngVal_Max.nFVal, fSelfVal) == 1)
				{
						::sprintf(szBuff, "%.2f", m_sInnerObj.m_RngVal_Max.nFVal);
						this->SetWindowText((LPCTSTR)szBuff);
				}
				if (::CalcOutRange(m_sInnerObj.m_RngVal_Min.nFVal, m_sInnerObj.m_RngVal_Max.nFVal, fSelfVal) == -1)
				{
						::sprintf(szBuff, "%.2f", m_sInnerObj.m_RngVal_Min.nFVal);
						this->SetWindowText((LPCTSTR)szBuff);
				}
		}

		//////////////////////////////////////////////////////////////////////////////////////////////////////////////
		//报警
		CWnd* pWndTarget = GetParent();
		if (pWndTarget != NULL)
		{
				if (m_sInnerObj.sType == 1) /*整形*/
				{
						if (::CalcOutRange(m_sInnerObj.m_RngVal_Min.nIVal, m_sInnerObj.m_RngVal_Max.nIVal, nSelfVal) != 0)
							pWndTarget->SendMessage(WM_USER+0x299/*超出范围*/, this->GetDlgCtrlID(), 0);
				}
				else		/*浮点*/
				{
						if (::CalcOutRange(m_sInnerObj.m_RngVal_Min.nFVal, m_sInnerObj.m_RngVal_Max.nFVal, fSelfVal) != 0)
							pWndTarget->SendMessage(WM_USER+0x299/*超出范围*/, this->GetDlgCtrlID(), 0);						
				}
		}
}

/////////////////////////////////////////////////////////////////////////////
// CNumericEdit
CNumericEdit::CNumericEdit()
			:m_nDotNum(0),
			m_bEnable(TRUE),
			m_nNegTag(0)
{
		//SetRange(0, 1200);
}

CNumericEdit::~CNumericEdit()
{
}


BEGIN_MESSAGE_MAP(CNumericEdit, CEdit)
	//{{AFX_MSG_MAP(CNumericEdit)
	ON_WM_CHAR()
	ON_WM_KEYDOWN()
	ON_WM_DRAWITEM()
	ON_WM_SETFOCUS()
	ON_WM_KILLFOCUS()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CNumericEdit message handlers
void CNumericEdit::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
		if (!m_bEnable)
			return ;

		//删除一个字符
		if (nChar == 8)
		{
			CEdit::OnChar(nChar, nRepCnt, nFlags);
			return ;
		}
		if (nChar != 46)
		if ((nChar < '0') || (nChar > '9'))
			return ;

		//此时拒绝输入!
		if (m_nDotNum ==1 && nChar == 46)
			return ;
		
		CString  rString;
		this->GetWindowText(rString);
		m_nDotNum = !(rString.FindOneOf(".")<0);	//不存在,则为1!
		CEdit::OnChar(nChar, nRepCnt, nFlags);	

		//
		this->CheckRange();
}

void  CNumericEdit::SetRange(float fMinVal, float fMaxVal)
{
		m_sInnerObj.sType = 0;

		//
		m_sInnerObj.m_RngVal_Min.nFVal= fMinVal;	//最小值
		m_sInnerObj.m_RngVal_Max.nFVal= fMaxVal;	//最大值
}

void  CNumericEdit::SetRange(int  nMinVal, int  nMaxVal)
{
		m_sInnerObj.sType = 1;

		//
		m_sInnerObj.m_RngVal_Min.nIVal= nMinVal;	//最小值
		m_sInnerObj.m_RngVal_Max.nIVal= nMaxVal;	//最大值
}


void  CNumericEdit::SetEnbl(BOOL bEnable)
{
		m_bEnable = bEnable;
}

void CNumericEdit::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
		CEdit::OnKeyDown(nChar, nRepCnt, nFlags);
}

BOOL CNumericEdit::PreTranslateMessage(MSG* pMsg) 
{
		//if (WM_KEYFIRST <= pMsg->message && pMsg->message <= WM_KEYLAST) 
		//{ 
		//		if(pMsg->wParam==VK_RETURN ) 
		//		{ 
						//HWND hWnd=::GetFocus(); 
						//int iID=::GetDlgCtrlID(hWnd); 
		//		} 
		//} 

		return CEdit::PreTranslateMessage(pMsg);
}

void CNumericEdit::OnDrawItem(int nIDCtl, LPDRAWITEMSTRUCT lpDrawItemStruct) 
{
		// TODO: Add your message handler code here and/or call default
		//	CDC sDc  = CDC(lpDrawItemStruct->hDC);
		//	COLORREF oldColor = sDc.SetTextColor(RGB(127, 64, 0));
		//
		//	sDc.DeleteDC();

		CEdit::OnDrawItem(nIDCtl, lpDrawItemStruct);
}


void CNumericEdit::OnSetFocus(CWnd* pOldWnd) 
{
		CEdit::OnSetFocus(pOldWnd);
		
		//
		CWnd* pWndTarget = GetParent();
		if (pWndTarget != NULL)
		{
				pWndTarget->SendMessage(WM_USER+0x290, this->GetDlgCtrlID(), 0);
		}
}

void CNumericEdit::OnKillFocus(CWnd* pNewWnd) 
{
	CEdit::OnKillFocus(pNewWnd);
	
	this->CheckRange();
}