pocketgpsdlg.cpp

手机上通过蓝牙串口协议读取GPS接收仪的GPS数据。

// PocketGPSDlg.cpp : implementation file
//

#include "stdafx.h"
#include "PocketGPS.h"
#include "PocketGPSDlg.h"

#define COLLECT_COUNT 12
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CPocketGPSDlg dialog

CPocketGPSDlg::CPocketGPSDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CPocketGPSDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CPocketGPSDlg)
	m_strLocation = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	m_bCollecting = FALSE;
	m_pFile = NULL;
}

void CPocketGPSDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CPocketGPSDlg)
	DDX_Control(pDX, IDC_COMBO_COM, m_Combo_Com);
	DDX_Text(pDX, IDC_EDIT_LOCATION, m_strLocation);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CPocketGPSDlg, CDialog)
	//{{AFX_MSG_MAP(CPocketGPSDlg)
	ON_BN_CLICKED(IDC_BUTTON_OPEN, OnButtonOpen)
	ON_BN_CLICKED(IDC_BUTTON_CLOSE, OnButtonClose)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CPocketGPSDlg message handlers

BOOL CPocketGPSDlg::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
	
	CenterWindow(GetDesktopWindow());	// center to the hpc screen
	
	m_Combo_Com.SetCurSel(7);
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}



void CPocketGPSDlg::OnButtonOpen() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	if(m_pFile == NULL){
		CString strFileName = _T("\\"+m_strLocation+".txt");
		//AfxMessageBox(strFileName);
		m_pFile =  _wfopen(strFileName,_T("a"));
	}
	CString strSerial;
	UpdateData(TRUE);
	m_Combo_Com.GetWindowText(strSerial);
	if(!m_Serial.IsOpen())
		m_Serial.OpenCom(strSerial);
	m_bCollecting = TRUE;
	AfxBeginThread(CPocketGPSDlg::ReceiveThread,0);
	AfxBeginThread(CPocketGPSDlg::SpliteThread,0);
}

void CPocketGPSDlg::OnButtonClose() 
{
	// TODO: Add your control notification handler code here
	if(m_Serial.IsOpen())
		m_Serial.CloseCom();
	m_bCollecting = FALSE;
	if(m_pFile!=NULL){
		fclose(m_pFile);
		m_pFile = NULL;
	}
}

UINT CPocketGPSDlg::ReceiveThread(LPVOID lpVoid)
{
	char str[101];
	DWORD wCount;     //读取的字节数
	CPocketGPSDlg* pMainWnd = (CPocketGPSDlg*)g_pMainWnd;
	while(pMainWnd->m_bCollecting)
	{
		ReadFile(pMainWnd->m_Serial.m_hCom,str, 100, &wCount, NULL);
		if(wCount > 0)//收到数据
		{
			
			str[wCount] = '\0';
			//TRACE((CString)str);
			pMainWnd->m_Serial.m_CriticalSection.Lock(1000);
			pMainWnd->m_Serial.m_strBuffer+=str;
			pMainWnd->m_Serial.m_CriticalSection.Unlock();
		}	
			
	}
	pMainWnd->m_Serial.CloseCom();
	return 0;
}

UINT CPocketGPSDlg::SpliteThread(LPVOID lpVoid)
{
	CString strGpsInfo;
	CPocketGPSDlg* pMainWnd = (CPocketGPSDlg*)g_pMainWnd;
	int nLen = 0;
	int nCount=0;
	BOOL bValid = FALSE;
	while (pMainWnd->m_bCollecting)
	{

		nLen = pMainWnd->m_Serial.m_strBuffer.GetLength();
		if(nLen<=0)
			continue;
		int nIndex = pMainWnd->m_Serial.m_strBuffer.Find(_T("\n"),0);
		if(nIndex>0)
		{
			pMainWnd->m_Serial.m_CriticalSection.Lock(1000);
			strGpsInfo = pMainWnd->m_Serial.m_strBuffer.Left(nIndex)+"\0";
			pMainWnd->m_Serial.m_CriticalSection.Unlock();
			strGpsInfo+= _T("\n");
			
			pMainWnd->m_Serial.m_strBuffer = pMainWnd->m_Serial.m_strBuffer.Right(nLen - nIndex - 1);
			//TRACE(strGpsInfo);
			CString strHead = strGpsInfo.Left(6);

			if(strHead.CompareNoCase(_T("$GPGSA"))==0)
			{
				if(strGpsInfo.GetAt(9)=='1'){
					bValid = FALSE;
				}
				else{
					if(!bValid)
						::MessageBox(pMainWnd->m_hWnd,_T("get valid data!"),_T("PocketGPS"),MB_OK|MB_ICONINFORMATION);
					//::AfxMessageBox(_T("get valid data!"));
					bValid = TRUE;
				}
			}
			if(bValid &&
				((strHead.CompareNoCase(_T("$GPGGA"))==0)||
				(strHead.CompareNoCase(_T("$GPRMC"))==0))){
				fwprintf(pMainWnd->m_pFile,strGpsInfo.GetBuffer(0));
				nCount++;
			}
		}
		
		if(nCount>=COLLECT_COUNT)
		{
			::AfxMessageBox(_T("collect complete"));
			//pMainWnd->m_bCollecting=FALSE;
			break;
		}
	}
	pMainWnd->OnButtonClose();
	return 0;
}