gps_commdlg.cpp

一个GPS串口通讯的程序

// GPS_CommDlg.cpp : implementation file
//

#include "stdafx.h"
#include "GPS_Comm.h"
#include "GPS_CommDlg.h"


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

/////////////////////////////////////////////////////////////////////////////
// CGPS_CommDlg dialog

CGPS_CommDlg::CGPS_CommDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CGPS_CommDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CGPS_CommDlg)
	m_strFileName = _T("");
	m_chkOutputFile = FALSE;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	m_strReceived=_T("");
	
	m_fp=NULL;
}

void CGPS_CommDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CGPS_CommDlg)
	DDX_Control(pDX, IDC_MSGLIST, m_LSTMsg);
	DDX_Text(pDX, IDC_EDITFILE, m_strFileName);
	DDX_Check(pDX, IDC_CHKOUTPUTFILE, m_chkOutputFile);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CGPS_CommDlg, CDialog)
	//{{AFX_MSG_MAP(CGPS_CommDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_SETUP, OnSetup)
	ON_BN_CLICKED(IDC_STARTRECEIVE, OnStartReceive)
	ON_BN_CLICKED(IDC_STOPRECEIVE, OnStopReceive)
	ON_WM_TIMER()
	ON_MESSAGE(WM_COMM_RXCHAR,OnCommunication) //接收字符的消息传递函数，触发主线程
	ON_BN_CLICKED(IDC_CLEARLIST, OnClearList)
	ON_BN_CLICKED(IDC_BROWER, OnBrower)
	ON_BN_CLICKED(IDC_CHKOUTPUTFILE, OnChkOutputFile)
	ON_WM_SIZE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGPS_CommDlg message handlers

BOOL CGPS_CommDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	m_PortEx.InitPort(this,1,9600,'N',8,1);//先初始化一下
	((CButton*)GetDlgItem(IDC_STOPRECEIVE))->EnableWindow(FALSE);//停止接收按钮不可用
	((CEdit*)GetDlgItem(IDC_EDITFILE))->EnableWindow(FALSE);
	((CButton*)GetDlgItem(IDC_BROWER))->EnableWindow(FALSE);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CGPS_CommDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CGPS_CommDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}


void CGPS_CommDlg::OnChkOutputFile() 
{
	// TODO: Add your control notification handler code here
	m_chkOutputFile =! m_chkOutputFile;
	if(m_chkOutputFile)
	{
		((CEdit*)GetDlgItem(IDC_EDITFILE))->EnableWindow(TRUE);
		((CButton*)GetDlgItem(IDC_BROWER))->EnableWindow(TRUE);
	}
	else
	{
		((CEdit*)GetDlgItem(IDC_EDITFILE))->EnableWindow(FALSE);
		((CButton*)GetDlgItem(IDC_BROWER))->EnableWindow(FALSE);
	}
}


void CGPS_CommDlg::OnBrower() 
{
	// TODO: Add your control notification handler code here
	DWORD Flag=OFN_HIDEREADONLY|OFN_CREATEPROMPT|OFN_NONETWORKBUTTON;
	CFileDialog fdlFile(TRUE,NULL,NULL,Flag,"所有文件(*.*)|*.*",NULL);

	if (fdlFile.DoModal()!=IDOK)
			return;
	
	m_strFileName = fdlFile.GetPathName();
	UpdateData(FALSE);
	char FileName[100];
	sprintf(FileName,"%s",m_strFileName);
	
}


//点击串口设置按钮
void CGPS_CommDlg::OnSetup() 
{

	// TODO: Add your control notification handler code here
	CSetupDlg *dlg=new CSetupDlg(this,&m_PortEx);
	
	if (dlg->DoModal() == IDOK)
	{
		switch(dlg->m_strComm[3])//串口串中第四个字符
		{
		case '1':
			m_nComm=1;
			break;
		case '2':
			m_nComm=2;
			break;
		case '3':
			m_nComm=3;
			break;
		case '4':
			m_nComm=4;
			break;
		default:
			break;
		}
		m_PortEx.m_nPortNr=m_nComm;
				
		m_nBandRate = m_PortEx.m_dcb.BaudRate = atoi(dlg->m_strBaudRate);
		this->m_cParity = dlg->m_strParity[0];
		switch(m_cParity)
		{
		case 'N':
			m_PortEx.m_dcb.Parity=NOPARITY;
			break;
		case 'O':
			m_PortEx.m_dcb.Parity=ODDPARITY;
			break;
		case 'E':
			m_PortEx.m_dcb.Parity=EVENPARITY;
			break;
		case 'M':
			m_PortEx.m_dcb.Parity=MARKPARITY;
			break;
		case 'S':
			m_PortEx.m_dcb.Parity=SPACEPARITY;
			break;
		default:
			break;		
		}

		m_nDataBits=	m_PortEx.m_dcb.ByteSize=	atoi(dlg->m_strDataBits);
		m_nStopBits=	m_PortEx.m_dcb.StopBits=	atoi(dlg->m_strStopBits);
		if(m_PortEx.m_szWriteBuffer)
			delete m_PortEx.m_szWriteBuffer;
		m_PortEx.m_szWriteBuffer=new BYTE[m_PortEx.m_nWriteBufferSize];
		if(!(m_PortEx.InitPort(this,m_nComm,m_nBandRate,m_cParity,
			m_nDataBits,m_nStopBits)))
		{
			char error[100];
			sprintf(error,"COM%d被占用或没有该COM口,请改用其它COM口！",m_nComm);
			AfxMessageBox(error);
		}
	}
	delete dlg;

}

//接收字符的消息传递函数，辅助线程传来，触发主线程数据处理
LONG CGPS_CommDlg::OnCommunication(WPARAM ch, LPARAM port)
{
	m_strReceived += (char)ch;//将接收到的每个字符叠加
	
	return 0;
}

//单击"开始接收"按钮
void CGPS_CommDlg::OnStartReceive() 
{
	// TODO: Add your control notification handler code here
	m_PortEx.StartMonitoring();
	UINT nTimer = SetTimer(1,50,NULL);
	//开始接收 按钮不可用，停止接收 按钮可用
	((CButton*)GetDlgItem(IDC_STARTRECEIVE))->EnableWindow(FALSE); 
	((CButton*)GetDlgItem(IDC_STOPRECEIVE))->EnableWindow(TRUE); 

	UpdateData(TRUE);//将控件的内容给变量	
	if((m_fp=fopen(m_strFileName,"a+wt"))==NULL)
	{
		::MessageBox(NULL,_T("文件打开错误，"),_T("错误"),MB_ICONERROR|MB_OK);
		return; 
		//exit(0);
	}

}


//单击"停止接收"按钮
void CGPS_CommDlg::OnStopReceive() 
{
	// TODO: Add your control notification handler code here
	m_PortEx.StopMonitoring();
	KillTimer(1);
	//开始接收 按钮可用，停止接收 按钮不可用
	((CButton*)GetDlgItem(IDC_STARTRECEIVE))->EnableWindow(TRUE); 
	((CButton*)GetDlgItem(IDC_STOPRECEIVE))->EnableWindow(FALSE); 

	fclose(m_fp);//关闭文件
}


//定时器事件
void CGPS_CommDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	if (nIDEvent!=1)  //如果不是1号定时器，则退出
		return;
	
	m_strReceived=_T("this is test!");
	((CListBox*)GetDlgItem(IDC_MSGLIST))->AddString(m_strReceived);
	if(m_chkOutputFile)
		fprintf(m_fp,_T("%s"),m_strReceived); //变量须用str1[]的形式定义！
	
	while((m_strReceived.Find(0x0d)!=-1)&&(m_strReceived.Find(0x0a)!=-1))
	{

		
		if(m_chkOutputFile)
		{
			fprintf(m_fp,_T("%s"),m_strReceived); //变量须用str1[]的形式定义！
		}


		//AfxMessageBox(m_strReceived);
		m_LSTMsg.AddString(m_strReceived);
		m_strReceived=_T("");
/*
		int startLF=m_strReceived.Find(0x0a);
		int endCR=m_strReceived.Find(0x0d);
		if(startLF>endCR)
			endCR=m_strReceived.Find(0x0d,startLF);
		CString msg= m_strReceived.Mid(startLF+1,endCR-startLF-1);
		m_strReceived.Delete(0,endCR+1);

//		if(msg.Left(6).Compare("$GPGGA")!=0)
//			continue;
		//msg.Delete(0,msg.Find(',')+1);
		
		((CListBox*)GetDlgItem(IDC_MSGLIST))->AddString(msg);*/


	}

	
	CDialog::OnTimer(nIDEvent);
}



void CGPS_CommDlg::OnClearList() 
{
	// TODO: Add your control notification handler code here
	m_LSTMsg.ResetContent();
}




void CGPS_CommDlg::OnSize(UINT nType, int cx, int cy) 
{
	CDialog::OnSize(nType, cx, cy);
	

	// TODO: Add your message handler code here
	
	if(::IsWindow(m_LSTMsg.m_hWnd))
	{
		m_LSTMsg.SetWindowPos(NULL,0,0,cx-10,cy-50,SWP_NOZORDER|SWP_NOMOVE);

		CButton bt;
		bt.Attach(GetDlgItem(IDOK)->m_hWnd);
		bt.SetWindowPos(NULL,cx/2-50,cy-28,0,0,SWP_NOZORDER|SWP_NOSIZE);
		bt.Detach();
	}


}