mainfrm.cpp

VC下编写的GPS接收分析程序,VC下测试成功,EVC下需要进行改动

// MainFrm.cpp : implementation of the CMainFrame class
//

#include "stdafx.h"
#include "GPS.h"

#include "MainFrm.h"
#include "GPSSet.h"
#include "GPSView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMainFrame

IMPLEMENT_DYNCREATE(CMainFrame, CFrameWnd)

BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)
	//{{AFX_MSG_MAP(CMainFrame)
	ON_WM_CREATE()
	ON_MESSAGE(WM_COMM_RXCHAR, OnCommunication)
	ON_WM_TIMER()
	ON_COMMAND(ID_RECEIVE_START, OnReceiveStart)
	ON_COMMAND(ID_RECEIVE_STOP, OnReceiveStop)
	ON_COMMAND(ID_CONFIG, OnConfig)
	ON_COMMAND(ID_CLEAR, OnClear)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

static UINT indicators[] =
{
	ID_SEPARATOR,           // status line indicator
	ID_INDICATOR_CAPS,
	ID_INDICATOR_NUM,
	ID_INDICATOR_SCRL,
};

/////////////////////////////////////////////////////////////////////////////
// CMainFrame construction/destruction

CMainFrame::CMainFrame()
{
	// TODO: add member initialization code here
}

CMainFrame::~CMainFrame()
{

}

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	if (!m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP
		| CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) ||
		!m_wndToolBar.LoadToolBar(IDR_MAINFRAME))
	{
		TRACE0("Failed to create toolbar\n");
		return -1;      // fail to create
	}

	if (!m_wndStatusBar.Create(this) ||
		!m_wndStatusBar.SetIndicators(indicators,
		  sizeof(indicators)/sizeof(UINT)))
	{
		TRACE0("Failed to create status bar\n");
		return -1;      // fail to create
	}

	// TODO: Delete these three lines if you don't want the toolbar to
	//  be dockable
	m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);
	EnableDocking(CBRS_ALIGN_ANY);
	DockControlBar(&m_wndToolBar);

	m_Port.InitPort(this,1,4800,'N',8,1);

	return 0;
}

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
	if( !CFrameWnd::PreCreateWindow(cs) )
		return FALSE;
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return TRUE;
}

/////////////////////////////////////////////////////////////////////////////
// CMainFrame diagnostics

#ifdef _DEBUG
void CMainFrame::AssertValid() const
{
	CFrameWnd::AssertValid();
}

void CMainFrame::Dump(CDumpContext& dc) const
{
	CFrameWnd::Dump(dc);
}

#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMainFrame message handlers

LONG CMainFrame::OnCommunication(WPARAM ch, LPARAM port)
{
	m_strReceived+=(char)ch;

	return 0;
}

void CMainFrame::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default

	if(nIDEvent!=1)
		return ;

	while((m_strReceived.Find(0x0d)!=-1)&&(m_strReceived.Find(0x0a)!=-1))
	{
		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("$GPRMC")!=0)
			continue;
		msg.Delete(0,msg.Find(',')+1);
	
		char* pTime=msg.GetBuffer(msg.GetLength()+1);
		int hour,min,sec;
		char temp[9];
		memset(temp,0,9);
		memcpy(temp,pTime,2);
		memcpy(temp+3,pTime+2,2);
		memcpy(temp+6,pTime+4,2);
		hour=atoi(temp);
		min=atoi(temp+3);
		sec=atoi(temp+6);
		msg.ReleaseBuffer();
		msg.Delete(0,msg.Find(',')+1);

		if(msg.GetAt(0)!='A')
			continue;
		msg.Delete(0,msg.Find(',')+1);

		CString longitude=msg.Left(2);
		longitude+="度";
		longitude+=msg.Mid(2,6);
		longitude+="分";
		msg.Delete(0,msg.Find(',')+1);
		if(msg.GetAt(0)=='N')
			longitude.Insert(0,"北纬");
		if(msg.GetAt(0)=='S')
			longitude.Insert(0,"南纬");
		msg.Delete(0,msg.Find(',')+1);

		CString latitude=msg.Left(3);
		latitude+="度";
		latitude+=msg.Mid(3,6);
		latitude+="分";
		msg.Delete(0,msg.Find(',')+1);
		if(msg.GetAt(0)=='E')
			latitude.Insert(0,"东经");
		if(msg.GetAt(0)=='W')
			latitude.Insert(0,"西经");
		msg.Delete(0,msg.Find(',')+1);
		
		CString speed=msg.Left(5);
		speed+="kts";
		msg.Delete(0,msg.Find(',')+1);	//速度信息

		CString trueCourse=msg.Left(5);
		trueCourse+="度";
		msg.Delete(0,msg.Find(',')+1);	//真实航向信息	

		char* pDate=msg.GetBuffer(msg.GetLength()+1);
		int day,mon,year;
		memset(temp,0,9);
		memcpy(temp,pDate,2);
		memcpy(temp+3,pDate+2,2);
		memcpy(temp+6,pDate+4,2);
		day=atoi(temp);
		mon=atoi(temp+3);
		year=atoi(temp+6);
		if((year>40)&&(year<97))
			continue;
		if(year>40)
			year+=1900;
		else
			year+=2000;
		CTime t(year,mon,day,hour,min,sec);
		msg.ReleaseBuffer();
		msg.Delete(0,msg.Find(',')+1);

		CString magDev=msg.Left(5);		//磁偏转信息
		magDev+="度";
		msg.Delete(0,msg.Find(',')+1);
		if(msg.GetAt(0)=='W')
			magDev.Insert(0,"西");
		if(msg.GetAt(0)=='E')
			magDev.Insert(0,"东");		
		msg.Delete(0,msg.Find(',')+1);

		msg.Delete(0,msg.GetLength());	//定位系统模式指示忽略
		//后续字段忽略

		CGPSView* pView=(CGPSView*)this->GetActiveView();
		CGPSSet* pSet=pView->m_pSet;

		pSet->AddNew();
		pSet->m_latitude=latitude;
		pSet->m_longitude=longitude;
		pSet->m_time=t;
		pSet->m_magDev=magDev;
		pSet->m_speed=speed;
		pSet->m_trueCourse=trueCourse;
		if(pSet->CanUpdate()) 
		{
			pSet->Update();
		}
		if(!pSet->IsEOF())
		{
			pSet->MoveLast();
		}
		pView->m_dbGrid.Refresh();
		pView->UpdateData(FALSE);
	}
	
	CFrameWnd::OnTimer(nIDEvent);
}

void CMainFrame::OnReceiveStart() 
{
	// TODO: Add your command handler code here
	m_Port.StartMonitoring();
	m_nTimer = SetTimer(1, 3000, 0);
}

void CMainFrame::OnReceiveStop() 
{
	// TODO: Add your command handler code here
	m_Port.StopMonitoring();
	KillTimer(1);
}

void CMainFrame::OnConfig() 
{
	CConfigDlg* dlg = new CConfigDlg(this, &m_Port);
	
	if (dlg->DoModal() == IDOK)
	{
		switch(dlg->m_strComm[3])
		{
		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_Port.m_nPortNr=m_nComm;
				
		m_nBandRate=	m_Port.m_dcb.BaudRate=	atoi(dlg->m_strBaudRate);
		this->m_cParity=	dlg->m_strParity[0];
		switch(m_cParity)
		{
		case 'N':
			m_Port.m_dcb.Parity=NOPARITY;
			break;
		case 'O':
			m_Port.m_dcb.Parity=ODDPARITY;
			break;
		case 'E':
			m_Port.m_dcb.Parity=EVENPARITY;
			break;
		case 'M':
			m_Port.m_dcb.Parity=MARKPARITY;
			break;
		case 'S':
			m_Port.m_dcb.Parity=SPACEPARITY;
			break;
		default:
			break;		
		}

		m_nDataBits=	m_Port.m_dcb.ByteSize=	atoi(dlg->m_strDataBits);
		m_nStopBits=	m_Port.m_dcb.StopBits=	atoi(dlg->m_strStopBits);
		if(m_Port.m_szWriteBuffer)
			delete m_Port.m_szWriteBuffer;
		m_Port.m_szWriteBuffer=new BYTE[m_Port.m_nWriteBufferSize];
		if(!(m_Port.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;
}

void CMainFrame::OnClear() 
{
	// TODO: Add your command handler code here
	CGPSView* pView=(CGPSView*)this->GetActiveView();
	CGPSSet* pSet=pView->m_pSet;

	pSet->MoveFirst();

	do
	{
		try 
		{
			pSet->Delete();
			pSet->MoveNext();
		}
		catch(CDBException* e) 
		{
			AfxMessageBox(e->m_strError);
			e->Delete();
			return;
		}
	}while(!pSet->IsEOF());

	pView->UpdateData(FALSE);
}