addgpsdlg.cpp

Visual C++ source code for adding GPS units to PC desktop and Notebook exchange data from Serial por

// AddGPSDlg.cpp : implementation file
//

#include "stdafx.h"
#include "AddGPS.h"
#include "AddGPSDlg.h"

#include "SerialCom.h"
#include "NMEA0183\NMEA0183.h"

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


UINT MyThread(LPVOID pParam);
/////////////////////////////////////////////////////////////////////////////
// CAddGPSDlg dialog

CAddGPSDlg::CAddGPSDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CAddGPSDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CAddGPSDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CAddGPSDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAddGPSDlg)
	DDX_Control(pDX, IDC_STATIC1, c_Static);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAddGPSDlg, CDialog)
	//{{AFX_MSG_MAP(CAddGPSDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_DESTROY()
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CAddGPSDlg message handlers

BOOL CAddGPSDlg::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
	
	SetTimer(1,2000,NULL);		//Check GPS for 2 Sec.
	
	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 CAddGPSDlg::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 CAddGPSDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

UINT MyThread(LPVOID pParam)
{
	CAddGPSDlg* pDlg=(CAddGPSDlg*) pParam;
	
	CSerialCom Serial;
	NMEA0183 nmea0183;
	CStringList StrList;

	if (!Serial.OpenPort("COM2"))
	{	
		pDlg->c_Static.SetWindowText("Can't Open Port!");
		return 0;
	}
	
	Serial.ConfigurePort(4800, 8, FALSE, NOPARITY, TWOSTOPBITS);
	
	//Read
	
	char Data[100]="\0";
	
	BYTE DataByte='\0';
	int nIndex=0;
	
	BOOL Return=Serial.ReadByte(DataByte);
	while (DataByte!='\r' && DataByte!='\n' && Return==TRUE)
	{
		Data[nIndex]=DataByte;
		nIndex++;
		Return=Serial.ReadByte(DataByte);
	}
	
	Data[nIndex++]='\r';
	Data[nIndex++]='\n';
	Data[nIndex++]='\0';
	
	nIndex=0;
	while (Data[nIndex]!='$' && nIndex<100)
		nIndex++;
	
	StrList.RemoveAll();
	StrList.AddTail(Data+nIndex);
	
	//Parse
	
	POSITION position = StrList.GetHeadPosition();
	
	while(position!=NULL)
	{
		nmea0183 << StrList.GetNext(position);
		
		if (!nmea0183.Parse())
			pDlg->c_Static.SetWindowText("Can't parse!");
		else
		{	
			if (nmea0183.PlainText.GetLength()!= 0)
			{
				CString sMsg;
				CString sss;
				
				sMsg.Format("%s\r\n",(const char *) nmea0183.PlainText);
				
				pDlg->c_Static.SetWindowText(sMsg);
			}
		}
	}
	Serial.ClosePort();
	
	return 0;
}

void CAddGPSDlg::OnDestroy() 
{
	CDialog::OnDestroy();
	KillTimer(1);	

}

void CAddGPSDlg::OnTimer(UINT nIDEvent) 
{
	AfxBeginThread(MyThread,this);
	
	CDialog::OnTimer(nIDEvent);
}