myview.cpp

这是一个集串口通讯、数据库管理、文件管理和打印机管理于一体的VC程序

// MyView.cpp : implementation of the CMyView class
//

#include "stdafx.h"
#include "My.h"

#include "MyDoc.h"
#include "MyView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMyView

IMPLEMENT_DYNCREATE(CMyView, CFormView)

BEGIN_MESSAGE_MAP(CMyView, CFormView)
	//{{AFX_MSG_MAP(CMyView)
	ON_MESSAGE(WM_COMM_RXCHAR,OnCommunication)
	ON_COMMAND(ID_SEND_DATA, OnSendData)
	ON_COMMAND(ID_STOP_DATA, OnStopData)
	ON_WM_TIMER()
	ON_UPDATE_COMMAND_UI(ID_SEND_DATA, OnUpdateSendData)
	ON_UPDATE_COMMAND_UI(ID_STOP_DATA, OnUpdateStopData)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CFormView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CFormView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CFormView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyView construction/destruction
#define CR '\r'
#define LF '\n'

	char m_chChecksum; //用于COM1的校验和计算
	CString m_strRXhhCOM1; //用于存放COM1接收的半BYTE校验字节hh
	CString m_strRXDataCOM1; //COM1接收数据
	CString m_strRXDataCOM2; //COM2接收数据
	UINT m_nRXErrorCOM1; //COM1接收数据错误帧数
	UINT m_nRXErrorCOM2; //COM2接收数据错误帧数
	UINT m_nRXCounterCOM1; //COM1接收数据错误帧数
	UINT m_nRXCounterCOM2; //COM2接收数据错误帧数CString 

	CSerialPort m_ComPort[2];


CMyView::CMyView()
	: CFormView(CMyView::IDD)
{
	//{{AFX_DATA_INIT(CMyView)
	m_sAnodeVoltage = _T("");
	m_sCellVoltage = _T("");
	//}}AFX_DATA_INIT
	// TODO: add construction code here
	m_bConnected=FALSE;
}

CMyView::~CMyView()
{
}

void CMyView::DoDataExchange(CDataExchange* pDX)
{
	CFormView::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMyView)
	DDX_Text(pDX, IDC_EDIT_ANODVOLTAGE, m_sAnodeVoltage);
	DDX_Text(pDX, IDC_EDIT_CELLVOLTAGE, m_sCellVoltage);
	//}}AFX_DATA_MAP
}

BOOL CMyView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CFormView::PreCreateWindow(cs);
}

void CMyView::OnInitialUpdate()
{
	CFormView::OnInitialUpdate();
	GetParentFrame()->RecalcLayout();
	ResizeParentToFit();

	m_chChecksum=0; //校验和置0
	m_nRXErrorCOM1=0; //COM1接收数据错误帧数置0
	m_nRXErrorCOM2=0; //COM2接收数据错误帧数置0
	m_nRXCounterCOM1=0; //COM1接收数据错误帧数置0
	m_nRXCounterCOM2=0; //COM2接收数据错误帧数置0
	m_strRXhhCOM1.Empty(); //清空半BYTE校验hh存储变量
	for(int i=0; i<2; i++)
	{
		if(m_ComPort[i].InitPort(this,i+1,9600,'N',8,1,EV_RXFLAG | EV_RXCHAR,512))
		{
			m_ComPort[i].StartMonitoring(); //启动串口监视线程
		}
		else
		{
			CString str;
			str.Format("COM%d 没有发现，或被其它设备占用",i+1);
			AfxMessageBox(str);
		}
	}
}

/////////////////////////////////////////////////////////////////////////////
// CMyView printing

BOOL CMyView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CMyView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CMyView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

void CMyView::OnPrint(CDC* pDC, CPrintInfo* /*pInfo*/)
{
	// TODO: add customized printing code here
}

/////////////////////////////////////////////////////////////////////////////
// CMyView diagnostics

#ifdef _DEBUG
void CMyView::AssertValid() const
{
	CFormView::AssertValid();
}

void CMyView::Dump(CDumpContext& dc) const
{
	CFormView::Dump(dc);
}

CMyDoc* CMyView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMyDoc)));
	return (CMyDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMyView message handlers

void CMyView::OnSendData() 
{
	// TODO: Add your command handler code here
	m_bConnected=!m_bConnected;	
	SetTimer(1,1000,NULL);
}

void CMyView::OnStopData() 
{
	// TODO: Add your command handler code here
	m_bConnected=!m_bConnected;
	KillTimer(1);
	m_sAnodeVoltage="";
	m_sCellVoltage="";
	UpdateData(FALSE);
}

void CMyView::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	int m_nCellVoltage=rand()%1000;   //产生10以内的槽电压的随机数
	float m_fCellVoltage=(float)m_nCellVoltage/10;
	CString str_CellVoltage;
	str_CellVoltage.Format("%5.2f",m_fCellVoltage);
	
	int m_nAnodeVoltage=rand()%1000;   //产生4以内的阳极电压随机数
	float m_fAnodeVoltage=(float)m_nAnodeVoltage/10;
	CString str_AnodeVoltage;
	str_AnodeVoltage.Format("%5.2f",m_fAnodeVoltage);
	
	CTime Time;
	Time=CTime::GetCurrentTime();
	CString str_Time;
	str_Time=Time.Format("%H:%M:%S");

	CString str;
	str="%"+str_CellVoltage+"%"+str_AnodeVoltage+"%"+str_Time;
	SendString(str, 2); //串口2发送数据
	CFormView::OnTimer(nIDEvent);
}

void CMyView::SendString(CString &str, int Port)
{
	char checksum=0,cr=CR,lf=LF;
	char c1,c2;
	for(int i=0;i<str.GetLength();i++)
		checksum = checksum^str[i];
	c2=checksum & 0x0f;
	c1=((checksum >> 4) & 0x0f);
	if (c1 < 10)
		c1+= '0'; 
	else 
		c1 += 'A' - 10;
	if (c2 < 10)
		c2+= '0';
	else 
		c2 += 'A' - 10;
	
	CString str1;
	str1='$'+str+"*"+c1+c2+cr+lf;
	m_ComPort[Port-1].WriteToPort((char*)(LPCTSTR)str1);

}

LONG CMyView::OnCommunication(WPARAM ch,LPARAM Port)
{
	static int count1=0,count2=0,count3=0;
	static char c1,c2;
	static int flag;
	CString strCheck="";

	if(Port==1) //COM1接收到数据
	{
		m_strRXDataCOM1 += (char)ch;
		switch(ch)
		{
		case '$':
			m_chChecksum=0; //开始计算CheckSum
			flag=0;
			break;
		case '*':
			flag=2;
			c2=m_chChecksum & 0x0f; 
			c1=((m_chChecksum >> 4) & 0x0f);
			if (c1 < 10) c1+= '0'; else c1 += 'A' - 10;
			if (c2 < 10) c2+= '0'; else c2 += 'A' - 10;			
			break;
		case CR:
			break;
		case LF:
			m_strRXDataCOM1.Empty();
			break;
		default:
			if(flag>0) 
			{
				m_strRXhhCOM1 += ch; //得到收到的校验值hh
				if(flag==1)		
				{
					strCheck = strCheck+c1+c2; //计算得到的校验值hh
					if(strCheck!=m_strRXhhCOM1) //如果校验有错
					{
						m_strRXDataCOM1.Empty();
						m_nRXErrorCOM1++; //串口1错误帧数加1
					}
					else
					{
						m_nRXCounterCOM1++;
						if(m_strRXDataCOM1.Left(1)=="$") //接收数据的第一个字符是$吗？
						{
							char tbuf[6];
							char *temp=(char*)((LPCTSTR)m_strRXDataCOM1);
							tbuf[0]=temp[1];
							tbuf[1]=temp[2]; 
							tbuf[2]=temp[3]; 
							tbuf[3]=temp[4];
							tbuf[4]=0;				//0表示字符串的结束，必要
							int data=atoi(tbuf);
							//CString strDisplay1,strDisplay2;
							//strDisplay1.Format("NO. %06d: The reseived data is %04d",m_nRXCounterCOM1,data);
							//strDisplay2.Format("Error Counter=%04d.",m_nRXErrorCOM1);
							//CDC* pDC=GetDC(); //准备数据显示
							//int nColor=pDC->SetTextColor(RGB(255,255,0));
							//pDC->TextOut(10,10,strDisplay1);//显示接收到的数据 
							//pDC->TextOut(30,30,strDisplay2);//显示错误帧数
							//pDC->SetTextColor(nColor);
							//ReleaseDC(pDC);
							CString strTemp, strTemp1;
							int n1 = m_strRXDataCOM1.Find('%');
							strTemp = m_strRXDataCOM1.Right(m_strRXDataCOM1.GetLength() - n1 -1);
							
							//析取出槽电压
							n1 = strTemp.Find('%');
							strTemp1 = strTemp.Right(strTemp.GetLength() - n1 -1);
							m_sCellVoltage=strTemp.Left(n1);
							
							//析取出阳极电压
							n1 = strTemp1.Find('%');
							strTemp = strTemp1.Right(strTemp1.GetLength() - n1 - 1);
							m_sAnodeVoltage=strTemp1.Left(n1);
							
							//析取出时间
							n1 = strTemp.Find('*');
							
							UpdateData(FALSE);
						}
						//CString str1="Y";
						//m_ComPort[0].WriteToPort((LPCTSTR)str1);//发送应答信号Y

					}
					
					m_strRXhhCOM1.Empty();
				}
				flag--;
			}
			else
				m_chChecksum ^= ch;
			break;
		}

	}



	return 0;
}

void CMyView::OnUpdateSendData(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->Enable(!m_bConnected);
}

void CMyView::OnUpdateStopData(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->Enable(m_bConnected);
}