www.pudn.com > Image_Manage.rar > DlgHist.cpp

// DlgHist.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "Image_Manage.h" 
#include "DlgHist.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CDlgHist dialog 
 
 
CDlgHist::CDlgHist(CWnd* pParent /*=NULL*/) 
	: CDialog(CDlgHist::IDD, pParent) 
{ 
	//{{AFX_DATA_INIT(CDlgHist) 
		// NOTE: the ClassWizard will add member initialization here 
	//}}AFX_DATA_INIT 
	for(int i=0;i<256;i++) 
		hist[i]=0; 
} 
 
 
void CDlgHist::DoDataExchange(CDataExchange* pDX) 
{ 
	CDialog::DoDataExchange(pDX); 
	//{{AFX_DATA_MAP(CDlgHist) 
		// NOTE: the ClassWizard will add DDX and DDV calls here 
	//}}AFX_DATA_MAP 
} 
 
 
BEGIN_MESSAGE_MAP(CDlgHist, CDialog) 
	//{{AFX_MSG_MAP(CDlgHist) 
	ON_WM_PAINT() 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CDlgHist message handlers 
 
void CDlgHist::OnOK()  
{ 
	// TODO: Add extra validation here 
	 
	//CDialog::OnOK(); 
} 
 
void CDlgHist::OnPaint()  
{ 
	CPaintDC dc(this); // device context for painting 
	// 定义刷子 
	CBrush brush; 
	// 定义画笔 
	CPen pen; 
	// 定义一个矩形 
	CRect rect; 
	int i; 
	CString txt; 
 
	// 得到客户区的大小 
	GetClientRect(&rect); 
	brush.CreateSolidBrush(RGB(255,255,255)); 
	dc.SelectObject(&brush); 
	// 刷背景为白色 
	dc.Rectangle(rect); 
	brush.DeleteObject(); 
	// 画坐标 
	pen.CreatePen(PS_SOLID,1,RGB(0,0,0)); 
	dc.SelectObject(&pen); 
	//dc.MoveTo(80,274); 
	//dc.LineTo(80,20); 
	dc.MoveTo(76,270); 
	dc.LineTo(350,270); 
	dc.TextOut(75,280,"0"); 
	dc.TextOut(40,264,"0 %"); 
	for(i=0;i<10;i++) 
	{ 
		dc.MoveTo(105+i*25,270); 
		dc.LineTo(105+i*25,274); 
		if((i+1)%2==0) 
		{ 
			txt.Format("%d",(i+1)*25); 
			dc.TextOut(96+i*25,280,txt); 
		} 
	} 
	/* 
	for(i=0;i<50;i++) 
	{ 
		dc.MoveTo(78,270-i*5); 
		dc.LineTo(80,270-i*5); 
	} 
	*/ 
	for(i=0;i<256;i++) 
	{ 
		dc.MoveTo(80+i,270); 
		dc.LineTo(80+i,270-hist[i]); 
	} 
	pen.DeleteObject(); 
	// 画背景虚线 
	pen.CreatePen(PS_DASH,1,RGB(0,0,0)); 
	dc.SelectObject(&pen); 
	for(i=0;i<5;i++) 
	{ 
		dc.MoveTo(76,220-i*50); 
		dc.LineTo(350,220-i*50); 
		txt.Format("%d",i+1); 
		dc.TextOut(40,212-i*50,txt); 
	} 
	pen.DeleteObject(); 
} 
 
BOOL CDlgHist::OnInitDialog()  
{ 
	CDialog::OnInitDialog(); 
 
	return TRUE;  // return TRUE unless you set the focus to a control 
	              // EXCEPTION: OCX Property Pages should return FALSE 
}