www.pudn.com > WaveletsAndProcessing.rar > ImageView.cpp

// ImageView.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "Wavelets.h" 
#include "ImageView.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
///////////////////////////////////////////////////////////////////////////// 
// CImageView 
 
IMPLEMENT_DYNCREATE(CImageView, CView) 
 
CImageView::CImageView() 
{ 
} 
 
CImageView::~CImageView() 
{ 
} 
 
 
BEGIN_MESSAGE_MAP(CImageView, CView) 
	//{{AFX_MSG_MAP(CImageView) 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CImageView drawing 
 
void CImageView::OnDraw(CDC* pDC) 
{ 
	CWvltDoc* pDoc = GetDocument(); 
 
	unsigned char* pBitmap = pDoc -> m_pBitmap; 
	LPBITMAPINFO lpBitmapInfo = (LPBITMAPINFO)(pBitmap + 14); 
	unsigned char* pBitmapData = pBitmap + ((LPBITMAPFILEHEADER)pBitmap)->bfOffBits; 
	unsigned long biHeight = ((LPBITMAPINFOHEADER)lpBitmapInfo)->biHeight; 
	unsigned long biWidth = ((LPBITMAPINFOHEADER)lpBitmapInfo)->biWidth; 
 
	CRect rect; 
	GetClientRect(&rect); 
	long originx =0; 
	long originy =0; 
	if((unsigned long)(rect.Width()) > biWidth) 
		originx = (rect.Width() - biWidth)>>1; 
	if((unsigned long)(rect.Height()) > biHeight) 
		originy = (rect.Height() - biHeight)>>1; 
	SetDIBitsToDevice(pDC->m_hDC, originx, originy, biWidth, biHeight, 0, 0, 0, biHeight, pBitmapData,  
							lpBitmapInfo, DIB_RGB_COLORS); 
 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CImageView diagnostics 
 
#ifdef _DEBUG 
void CImageView::AssertValid() const 
{ 
	CView::AssertValid(); 
} 
 
void CImageView::Dump(CDumpContext& dc) const 
{ 
	CView::Dump(dc); 
} 
#endif //_DEBUG 
 
///////////////////////////////////////////////////////////////////////////// 
// CImageView message handlers 
BOOL CImageView::PreCreateWindow(CREATESTRUCT& cs)  
{ 
	cs.cy = cs.cx =0;	 
	return CView::PreCreateWindow(cs); 
}