www.pudn.com > ImgFFT.zip > StatChart.cpp

// StatChart.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "Pro2.h" 
#include "StatChart.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CStatChart dialog 
 
 
CStatChart::CStatChart(CWnd* pParent /*=NULL*/) 
	: CDialog(CStatChart::IDD, pParent) 
{ 
	//{{AFX_DATA_INIT(CStatChart) 
		// NOTE: the ClassWizard will add member initialization here 
	//}}AFX_DATA_INIT 
} 
 
 
void CStatChart::DoDataExchange(CDataExchange* pDX) 
{ 
	CDialog::DoDataExchange(pDX); 
	//{{AFX_DATA_MAP(CStatChart) 
		// NOTE: the ClassWizard will add DDX and DDV calls here 
	//}}AFX_DATA_MAP 
} 
 
 
BEGIN_MESSAGE_MAP(CStatChart, CDialog) 
	//{{AFX_MSG_MAP(CStatChart) 
	ON_WM_PAINT() 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CStatChart message handlers 
 
void CStatChart::OnPaint()  
{ 
	CPaintDC dc(this); // device context for painting 
	 
	// TODO: Add your message handler code here 
	 
	// Do not call CDialog::OnPaint() for painting messages 
 
	//get the tag 
	CWnd* pWnd=GetDlgItem(IDC_CHART); 
 
	CDC* pDC=pWnd->GetDC(); 
	pWnd->Invalidate(); 
	pWnd->UpdateWindow(); 
 
	pDC->Rectangle(0,0,330,300); 
 
	//create a pain object 
	CPen* pPenRed=new CPen; 
	 
	pPenRed->CreatePen(PS_SOLID,1,RGB(255,0,0)); 
 
	CPen* pOldPen=pDC->SelectObject(pPenRed); 
 
	pDC->MoveTo(10,10); 
 
	pDC->LineTo(10,280); 
 
	pDC->LineTo(320,280); 
 
	//paint the scale of X direction 
	CString strTemp; 
	strTemp.Format("0"); 
	pDC->TextOut(10,283,strTemp); 
	strTemp.Format("50"); 
	pDC->TextOut(60,283,strTemp); 
	strTemp.Format("100"); 
	pDC->TextOut(110,283,strTemp); 
	strTemp.Format("150"); 
	pDC->TextOut(160,283,strTemp); 
	strTemp.Format("200"); 
	pDC->TextOut(210,283,strTemp); 
	strTemp.Format("255"); 
	pDC->TextOut(265,283,strTemp); 
 
	for(int i=0;i<256;i+=5) 
	{ 
		if((i&1)==0) 
		{ 
			pDC->MoveTo(i+10,280); 
			pDC->LineTo(i+10,284); 
		} 
		else 
		{ 
			pDC->MoveTo(i+10,280); 
			pDC->LineTo(i+10,282); 
		} 
	} 
 
	pDC->MoveTo(315,275); 
	pDC->LineTo(320,280); 
	pDC->LineTo(315,285); 
 
	pDC->MoveTo(10,10); 
	pDC->LineTo(5,15); 
	pDC->MoveTo(10,10); 
	pDC->LineTo(15,15); 
 
	LONG lMaxCount=0; 
 
	//get the maximum number 
	for(i=0;i<=255;i++) 
	{ 
		if(m_nStat[i]>lMaxCount) 
			lMaxCount=m_nStat[i]; 
	} 
 
	pDC->MoveTo(10,25); 
	pDC->LineTo(14,25); 
	strTemp.Format("%d",lMaxCount); 
	pDC->TextOut(11,26,strTemp); 
 
	CPen* pPenBlue=new CPen; 
	pPenBlue->CreatePen(PS_SOLID,1,RGB(0,0,255)); 
 
	pDC->SelectObject(pPenBlue); 
 
	if(lMaxCount>0) 
	{ 
		for(i=0;i<=255;i++) 
		{ 
			pDC->MoveTo(i+10,280); 
			pDC->LineTo(i+10,281-(int)(m_nStat[i]*256/lMaxCount)); 
		} 
	} 
 
	pDC->SelectObject(pOldPen); 
 
	delete pPenRed; 
	delete pPenBlue; 
} 
 
BOOL CStatChart::OnInitDialog()  
{ 
	CDialog::OnInitDialog(); 
	 
	// TODO: Add extra initialization here 
	 
 
	return TRUE;  // return TRUE unless you set the focus to a control 
	              // EXCEPTION: OCX Property Pages should return FALSE 
}