dvview.cpp

一个并口程序通讯

// DVView.cpp : implementation of the CDVView class
//
#include "stdafx.h"
#include <conio.h>

#include "DV.h"

#include "DVDoc.h"
#include "DVView.h"

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

#define  PORT0 0x300
#define  PORT1 0x301
#define  PORT2 0x302
#define  PORT3 0x303
#define  PORT4 0x304
#define  PORT5 0x305
#define  PORT6 0x306
#define	 PORT7 0x307

static int nPerScr = 650;
static int nIndexScr = 0;
static int nPerFl = 5000;
static WORD CurData[650];

/////////////////////////////////////////////////////////////////////////////
// CDVView

IMPLEMENT_DYNCREATE(CDVView, CFormView)

BEGIN_MESSAGE_MAP(CDVView, CFormView)
	//{{AFX_MSG_MAP(CDVView)
	ON_BN_CLICKED(IDC_START_CAPTURE, OnStartCapture)
	ON_BN_CLICKED(IDC_VIEW_DATA, OnViewData)
	ON_BN_CLICKED(ID_QUIT, OnQuit)
	ON_WM_PAINT()
	ON_WM_LBUTTONDOWN()
	ON_WM_RBUTTONDOWN()
	ON_EN_CHANGE(IDC_DELAY_MS, OnChangeDelayMs)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDVView construction/destruction

CDVView::CDVView()
	: CFormView(CDVView::IDD)
{
	//{{AFX_DATA_INIT(CDVView)
	m_DelayMs = 0;
	//}}AFX_DATA_INIT
	// TODO: add construction code here
//	 bLRCursor = TRUE;//right cursor is selected
	 nLeft = nRight = 0;
}

CDVView::~CDVView()
{
}

void CDVView::DoDataExchange(CDataExchange* pDX)
{
	CFormView::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDVView)
	DDX_Text(pDX, IDC_DELAY_MS, m_DelayMs);
	DDV_MinMaxUInt(pDX, m_DelayMs, 0, 20);
	//}}AFX_DATA_MAP
}

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

	return CFormView::PreCreateWindow(cs);
}

void CDVView::OnInitialUpdate()
{
	CFormView::OnInitialUpdate();
	GetParentFrame()->RecalcLayout();
	ResizeParentToFit(0);

	GetDlgItem(IDC_PICTURE)->GetWindowRect(&rectPic);
	ScreenToClient(&rectPic);


}

/////////////////////////////////////////////////////////////////////////////
// CDVView diagnostics

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

void CDVView::Dump(CDumpContext& dc) const
{

	CFormView::Dump(dc);
}

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

/////////////////////////////////////////////////////////////////////////////
// CDVView message handlers

void CDVView::OnStartCapture() 
{
	memset(CurData,0,nPerScr*2);
	CClientDC dc(this);

	CString strWrite,strTemp;
	strWrite.Format("序号\t\tN1\t\tN2\t\t(N1+N2)/2\n\n");

	MSG MyMsg;
	BOOL test;
	BOOL TAG = TRUE;

	WORD w_hbyte,w_lbyte;	
	WORD d1,d2,ave;
	WORD old_ave = 0;

//	int i = 0;
//	int ii = 0;
	int nFileSeq = 0;

	while(TAG)
	{
		::PeekMessage( &MyMsg, NULL, WM_KEYDOWN, WM_KEYDOWN, PM_REMOVE );

		if(MyMsg.wParam == 27){TAG = FALSE;SaveData(strWrite,nIndexScr);}

		_inp(PORT0);

		Sleep(m_DelayMs);
//		Sleep(2);

		do{
			test=_inp(PORT1)&0x1;
			::PeekMessage( &MyMsg, NULL, WM_KEYDOWN, WM_KEYDOWN, PM_REMOVE );
			if(MyMsg.wParam == 27)	test = TRUE;
		}while(!test);

		w_hbyte = _inp(PORT4) & 0x07;
		w_lbyte = _inp(PORT3);
		d1 = (w_hbyte<<8) + w_lbyte;
		strTemp.Format("%d\t\t%d\t\t",nIndexScr,d1);
		strWrite += strTemp;

		w_hbyte = _inp(PORT7) & 0x07;
		w_lbyte = _inp(PORT6);
		d2 = (w_hbyte<<8) + w_lbyte;
		strTemp.Format("%d\t\t",d2);
		strWrite += strTemp;

		ave = (d1 + d2)/2;
		strTemp.Format("%d\n",ave);
		strWrite += strTemp;

		CurData[nIndexScr] = ave;
//		ave = rand()%200;
		//调用自定义的追加点函数
		AppendLine(nIndexScr-1,old_ave,nIndexScr,ave,&dc);
		old_ave = ave;

		nIndexScr++;
		if(nIndexScr >= nPerScr)
		{
			//调用自定义的保存数据函数
			nIndexScr=0;
			strWrite.Format("序号\t\tN1\t\tN2\t\t(N1+N2)/2\n\n");
//			SaveData(strWrite,nIndexScr);
			
			
//			memset(CurData,0,nPerScr*2);

			CRect rectInvalid;
			GetWindowRect(&rectInvalid);
			ScreenToClient(&rectInvalid);
			InvalidateRect(rectInvalid,1);
			UpdateWindow();
		}		
	}
}

BOOL CDVView::AppendLine(int x0,int y0,int x1,int y1,CDC *pdc)
{
	CPen *pOldPen,pen(PS_SOLID,1,RGB(0,255,0));
	pOldPen=pdc->SelectObject(&pen);

	int n_step=1;
	float fScale = 0.10;

	int temp = (int)((float)y0*fScale);
	temp = (temp>rectPic.Height())?(rectPic.Height()):temp;
	pdc->MoveTo((rectPic.left+x0*n_step),(rectPic.bottom-temp));

	temp = (int)((float)y1*fScale);
	temp = (temp>rectPic.Height())?(rectPic.Height()):temp;
	pdc->LineTo((rectPic.left+x1*n_step),(rectPic.bottom-temp));

	pdc->SelectObject(pOldPen);
	return TRUE;
}

BOOL CDVView::SaveData(CString &str,int nSeq)
{
	CStdioFile file;
	CString strTemp;
//	strTemp.Format("data%d.txt",nSeq);
	BOOL bSuccess = file.Open( "data.txt" , CFile::modeWrite | CFile::typeText | CFile::modeCreate);
	if(bSuccess)
	{
		file.WriteString(str);
		file.Close();
		return TRUE;
	}
	else
	{
		AfxMessageBox("写数据文件DATA??.TXT失败！");
		return FALSE;
	}
	return FALSE;
}



void CDVView::OnViewData() 
{
	HWND hwnd = GetSafeHwnd();
	HINSTANCE result = ShellExecute(hwnd, "open", "data.txt", NULL,NULL, SW_SHOW);	
}

BOOL CDVView::BkGnd(CDC *pdc)
{   //interX:4.6ms
	pdc->SetBkMode(TRANSPARENT);
	pdc->SelectStockObject(BLACK_BRUSH);
	pdc->Rectangle(rectPic);
	CPen *pOldPen,pen(PS_SOLID,1,RGB(129,129,129));
	pOldPen = pdc->SelectObject(&pen);

	int interY = rectPic.Height()/10;

	CString str;
	
	for(int j=0;j<=10;j++)
	{
		pdc->MoveTo(rectPic.left,rectPic.bottom-interY*j);
		pdc->LineTo(rectPic.right,rectPic.bottom-interY*j);
		
		str.Format("%d",j*interY*10);
		pdc->TextOut(rectPic.left-40,rectPic.bottom-interY*j-10,str);
	}

	for(j=0;j<=10;j++)
	{
		pdc->MoveTo(rectPic.left+j*65,rectPic.bottom);
		pdc->LineTo(rectPic.left+j*65,rectPic.top);
		pdc->SetBkMode(TRANSPARENT);
		str.Format("%d",(int)((float)j*65.0*4.6));
		pdc->TextOut(rectPic.left+j*65-20,rectPic.bottom,str);
	}

	pdc->SetBkMode(OPAQUE);
	CPen penCursor(PS_SOLID,1,RGB(255,255,255));
	pOldPen = pdc->SelectObject(&penCursor);


	pdc->MoveTo(rectPic.left+nLeft,rectPic.bottom);
	pdc->LineTo(rectPic.left+nLeft,rectPic.top);
	pdc->TextOut(rectPic.left+nLeft,rectPic.top,"左");

	pdc->MoveTo(rectPic.left+nRight,rectPic.bottom);
	pdc->LineTo(rectPic.left+nRight,rectPic.top);
	pdc->TextOut(rectPic.left+nRight,rectPic.top,"右");

	float ll=(float)nLeft*4.6;
	float rr=(float)nRight*4.6;
	float dd=rr-ll;
	float hh;
	hh=(dd==0)?0:(float)(1.0/abs(dd)*1000.0);


	str.Format("左标线位置:%.2fms,该点振幅:%d\n右标线位置:%.2fms,该点振幅:%d\n两标线间隔:%.2fms合%.2fHz",ll,CurData[nLeft],rr,CurData[nRight],dd,hh);
	SetDlgItemText(IDC_CURSOR_RESULT,str);
	

	pdc->SelectObject(pOldPen);


	return TRUE;
}

void CDVView::OnQuit() 
{
	PostQuitMessage(1);
}

void CDVView::OnPaint() 
{
	CPaintDC dc(this); // device context for painting
	
	BkGnd(&dc);
	PlayBackCurData(&dc);
	
	// Do not call CFormView::OnPaint() for painting messages
}

void CDVView::OnRButtonDown(UINT nFlags, CPoint point) 
{
	int x,y;
	x = point.x-rectPic.left;
	y = rectPic.bottom-point.y;
	if(x>=0 && y>=0) nRight = x;
	InvalidateRect(rectPic,0);
	UpdateWindow();
	
	CFormView::OnRButtonDown(nFlags, point);
}


void CDVView::OnLButtonDown(UINT nFlags, CPoint point) 
{
	/*
	CClientDC dc(this);
//	dc.SetBkMode(TRANSPARENT);
	CPen *pOldPen,pen(PS_SOLID,1,RGB(0,0,255));
	pOldPen=dc.SelectObject(&pen);*/

	int x,y;
	x = point.x-rectPic.left;
	y = rectPic.bottom-point.y;
	if(x>=0 && y>=0) nLeft = x;
	InvalidateRect(rectPic,0);
	UpdateWindow();

/*
	dc.MoveTo(rectPic.left+nLeft,rectPic.bottom);
	dc.LineTo(rectPic.left+nLeft,rectPic.top);
	dc.TextOut(rectPic.left+nLeft,rectPic.top,"左");

	dc.MoveTo(rectPic.left+nRight,rectPic.bottom);
	dc.LineTo(rectPic.left+nRight,rectPic.top);
	dc.TextOut(rectPic.left+nRight,rectPic.top,"右");

	dc.SelectObject(pOldPen);
	*/
	CFormView::OnLButtonDown(nFlags, point);
}

BOOL CDVView::PlayBackCurData(CDC *pdc)
{
	CPen *pOldPen,pen(PS_SOLID,1,RGB(0,255,0));
	pOldPen=pdc->SelectObject(&pen);

	int n_step=1;
	float fScale = 0.10;

	for(int i=0;i<nIndexScr-1;i++)
	{
		int temp = (int)((float)CurData[i]*fScale);
		temp = (temp>rectPic.Height())?(rectPic.Height()):temp;
		pdc->MoveTo((rectPic.left+i*n_step),(rectPic.bottom-temp));

		temp = (int)((float)CurData[i+1]*fScale);
		temp = (temp>rectPic.Height())?(rectPic.Height()):temp;
		pdc->LineTo((rectPic.left+(i+1)*n_step),(rectPic.bottom-temp));
	}

	pdc->SelectObject(pOldPen);
	return TRUE;
}


void CDVView::OnChangeDelayMs() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CFormView::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	// TODO: Add your control notification handler code here

	UpdateData(TRUE);
	
	
}