gps loggerview.cpp

读取GPS数据

// GPS LoggerView.cpp : implementation of the CGPSLoggerView class
//

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

#include "GPS LoggerDoc.h"
#include "GPS LoggerView.h"

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

#define ID_TIMER 99001

/////////////////////////////////////////////////////////////////////////////
// CGPSLoggerView

IMPLEMENT_DYNCREATE(CGPSLoggerView, CFormView)

BEGIN_MESSAGE_MAP(CGPSLoggerView, CFormView)
	//{{AFX_MSG_MAP(CGPSLoggerView)
	ON_COMMAND(ID_TOOLS_STARTSTOP, OnToolsStartStop)
	ON_UPDATE_COMMAND_UI(ID_TOOLS_STARTSTOP, OnUpdateToolsStartStop)
	ON_WM_TIMER()
	ON_BN_CLICKED(IDC_BUTTON_START, OnButtonStart)
	ON_BN_CLICKED(IDC_BUTTON_STOP, OnButtonStop)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGPSLoggerView construction/destruction

CGPSLoggerView::CGPSLoggerView()
	: CFormView(CGPSLoggerView::IDD)
{
	//{{AFX_DATA_INIT(CGPSLoggerView)
	m_strAltitude = _T("0.000000");
	m_strLatitude = _T("0.000000");
	m_strLongitude = _T("0.000000");
	m_strNumSentences = _T("0");
	m_strSignalQuality = _T("Unknown");
	m_strSatelitesInUse = _T("");
	//}}AFX_DATA_INIT
	// TODO: add construction code here

}

CGPSLoggerView::~CGPSLoggerView()
{
}

void CGPSLoggerView::DoDataExchange(CDataExchange* pDX)
{
	CFormView::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CGPSLoggerView)
	DDX_Control(pDX, IDC_BUTTON_STOP, m_buttonStop);
	DDX_Control(pDX, IDC_BUTTON_START, m_buttonStart);
	DDX_Text(pDX, IDC_ALTITUDE, m_strAltitude);
	DDX_Text(pDX, IDC_LATITUDE, m_strLatitude);
	DDX_Text(pDX, IDC_LONGITUDE, m_strLongitude);
	DDX_Text(pDX, IDC_NUM_SENTENCES, m_strNumSentences);
	DDX_Text(pDX, IDC_SIGNAL_QUALITY, m_strSignalQuality);
	DDX_Text(pDX, IDC_SATELITES_IN_USE, m_strSatelitesInUse);
	//}}AFX_DATA_MAP
}

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

	return CFormView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CGPSLoggerView diagnostics

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CGPSLoggerView message handlers

void CGPSLoggerView::OnToolsStartStop() 
{
	// TODO: Add your command handler code here
	if( GetDocument()->IsRunning() )
	{
		GetDocument()->Stop();
		KillTimer(ID_TIMER);
	}
	else
	{
		GetDocument()->Start();
		SetTimer(ID_TIMER, 1000, NULL);
	}
}

void CGPSLoggerView::OnUpdateToolsStartStop(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->SetText( GetDocument()->IsRunning() ?
		_T("Stop") : _T("Start") );
}

void CGPSLoggerView::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	if(nIDEvent == ID_TIMER)
	{
		GetDocument()->Timer();
		UpdateDialogControls(this, FALSE);
	}
	CFormView::OnTimer(nIDEvent);
}

void CGPSLoggerView::OnUpdate(CView* pSender, LPARAM lHint, CObject* pHint) 
{
	m_strAltitude.Format(_T("%f"), GetDocument()->GetActualGPSInfo().m_altitude);
	m_strLatitude.Format(_T("%f"), GetDocument()->GetActualGPSInfo().m_latitude);
	m_strLongitude.Format(_T("%f"), GetDocument()->GetActualGPSInfo().m_longitude);
	m_strNumSentences.Format(_T("%d"), GetDocument()->GetActualGPSInfo().m_nSentences);

	switch(GetDocument()->GetActualGPSInfo().m_signalQuality)
	{
		case 0 : m_strSignalQuality = "Fix not available"; break;
		case 1 : m_strSignalQuality = "GPS sps mode"; break;
		case 2 : m_strSignalQuality = "Differential GPS, SPS mode, fix valid"; break;
		case 3 : m_strSignalQuality = "GPS PPS mode, fix valid"; break;
		default : m_strSignalQuality = "Unknown"; break;
	}

	m_strSatelitesInUse.Format(_T("%d"), GetDocument()->GetActualGPSInfo().m_satelitesInUse);

	UpdateData (FALSE);

	CView::OnUpdate(pSender, lHint, pHint);
}

void CGPSLoggerView::OnButtonStart() 
{
	// TODO: Add your control notification handler code here
	GetDocument()->Start();
	SetTimer(ID_TIMER, 1000, NULL);
	m_buttonStart.EnableWindow(FALSE);
	m_buttonStop.EnableWindow();
}

void CGPSLoggerView::OnButtonStop() 
{
	// TODO: Add your control notification handler code here
	GetDocument()->Stop();
	KillTimer(ID_TIMER);
	m_buttonStart.EnableWindow();
	m_buttonStop.EnableWindow(FALSE);
}