www.pudn.com > scope_input_sound_class.rar > sndView.cpp

// sndView.cpp : implementation of the CSndView class 
// 
 
#include "stdafx.h" 
#include "snd.h" 
 
#include "sndDoc.h" 
#include "sndView.h" 
 
#include "soundIn.h" 
extern CSoundIn SoundIn; 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CSndView 
 
IMPLEMENT_DYNCREATE(CSndView, CView) 
 
BEGIN_MESSAGE_MAP(CSndView, CView) 
	//{{AFX_MSG_MAP(CSndView) 
	ON_WM_TIMER() 
	//}}AFX_MSG_MAP 
	// Standard printing commands 
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint) 
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint) 
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview) 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CSndView construction/destruction 
 
CSndView::CSndView() 
{ 
	// TODO: add construction code here 
 
} 
 
CSndView::~CSndView() 
{ 
} 
 
BOOL CSndView::PreCreateWindow(CREATESTRUCT& cs) 
{ 
	// TODO: Modify the Window class or styles here by modifying 
	//  the CREATESTRUCT cs 
 
	return CView::PreCreateWindow(cs); 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CSndView drawing 
 
void CSndView::OnDraw(CDC* pDC) 
{ 
	CSndDoc* pDoc = GetDocument(); 
	ASSERT_VALID(pDoc); 
 
	// TODO: add draw code for native data here 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CSndView printing 
 
BOOL CSndView::OnPreparePrinting(CPrintInfo* pInfo) 
{ 
	// default preparation 
	return DoPreparePrinting(pInfo); 
} 
 
void CSndView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) 
{ 
	// TODO: add extra initialization before printing 
} 
 
void CSndView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) 
{ 
	// TODO: add cleanup after printing 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CSndView diagnostics 
 
#ifdef _DEBUG 
void CSndView::AssertValid() const 
{ 
	CView::AssertValid(); 
} 
 
void CSndView::Dump(CDumpContext& dc) const 
{ 
	CView::Dump(dc); 
} 
 
CSndDoc* CSndView::GetDocument() // non-debug version is inline 
{ 
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CSndDoc))); 
	return (CSndDoc*)m_pDocument; 
} 
#endif //_DEBUG 
 
///////////////////////////////////////////////////////////////////////////// 
// CSndView message handlers 
 
void CSndView::OnTimer(UINT nIDEvent)  
{ 
 
	CRect rcClient; 
	GetClientRect(rcClient); 
 
	CClientDC dc(this); 
	 
	CBitmap Bitmap; 
	CBitmap* pbmOld = NULL; 
 
	CDC dcMem; 
	dcMem.CreateCompatibleDC(&dc); 
 
	Bitmap.CreateCompatibleBitmap(&dc,rcClient.right,rcClient.bottom); 
	//pbmOld = dcMem.SelectObject(&m_bmBall); 
	pbmOld = dcMem.SelectObject(&Bitmap); 
 
	dcMem.PatBlt(0, 0,rcClient.right, rcClient.bottom, WHITENESS); 
 
	dcMem.MoveTo(0,rcClient.bottom/2); 
 
	// trace un graph correspondant a une fft (sinx/x) 
  // 
		int x,y; 
		dcMem.MoveTo(0,rcClient.bottom/2); 
   
	// display incomming signal 
	  for  (x =0 ; x < (rcClient.right); x++)  // display Input 
	  { 
			y 	= rcClient.bottom/2+50 - SoundIn.InputBuffer[x]/8 ; 
			dcMem.LineTo(x,y); 
			//yMoy[x] = (yMoy[x]+y)/2; 
	  } 
	dc.BitBlt(0,0,rcClient.right,rcClient.bottom, 
				&dcMem, 0, 0, SRCCOPY); 
	 
	 
	dcMem.SelectObject(pbmOld); 
	dcMem.DeleteDC(); 
	 
//	CView::OnTimer(nIDEvent); 
} 
 
 
void CSndView::OnInitialUpdate()  
{ 
	CView::OnInitialUpdate(); 
	 
	if (!SetTimer(1, 200 /*start slow*/, NULL)) 
	{ 
		MessageBox(_T("Not enough timers available for this window."), 
				_T("Sound Test "), MB_ICONEXCLAMATION | MB_OK); 
 
		// signal creation failure... 
		return; 
	} 
	 
}