viewstatic.cpp

C8051F320 USB示波器测试程序

// ViewStatic.cpp : implementation file
//

#include "stdafx.h"
#include "StoneDAQTest.h"
#include "ViewStatic.h"
#include "math.h"

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

/////////////////////////////////////////////////////////////////////////////
// CViewStatic

CViewStatic::CViewStatic()
{
	for(int i = 0; i < 512; i++)
	{
		DrawBuf[i] = 128 + 128.0 * sin(i * 2 * 3.1415926 / 256.0);
	}
}

CViewStatic::~CViewStatic()
{
}


BEGIN_MESSAGE_MAP(CViewStatic, CStatic)
	//{{AFX_MSG_MAP(CViewStatic)
	ON_WM_PAINT()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CViewStatic message handlers

void CViewStatic::DrawView(unsigned int nLen, unsigned char *pData)
{
	for(int i = 0; i < 512 && i < nLen; i++)
	{
		DrawBuf[i] = pData[i];
	}
	Invalidate(TRUE);
}

void CViewStatic::OnPaint() 
{
	CPaintDC dc(this); // device context for painting
	
	// TODO: Add your message handler code here
	dc.Rectangle(0,0,512,257);
	dc.MoveTo(0,128);
	dc.LineTo(512,128);

	dc.MoveTo(0,256 - DrawBuf[0]);
	for(int i = 1; i < 512; i++)
	{
		dc.LineTo(i,256 - DrawBuf[i]);
	}

	// Do not call CStatic::OnPaint() for painting messages
}