rightimageview.cpp

数字摄影测量相关算法编程,在VC环境下实现影像特征点提取.

// RightImageView.cpp : implementation file
//

#include "stdafx.h"
#include "GaMatch.h"
#include "RightImageView.h"
#include "windows.h"
#include "windowsx.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CRightImageView

IMPLEMENT_DYNCREATE(CRightImageView, CScrollView)

CRightImageView::CRightImageView()
{
}

CRightImageView::~CRightImageView()
{
}


BEGIN_MESSAGE_MAP(CRightImageView, CScrollView)
	//{{AFX_MSG_MAP(CRightImageView)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CRightImageView drawing

void CRightImageView::OnInitialUpdate()
{
	CScrollView::OnInitialUpdate();

	ASSERT(GetDocument() != NULL);
	CGaMatchDoc* pDoc =(CGaMatchDoc*) GetDocument();
	SetScrollSizes(MM_TEXT, pDoc->GetRImgSize(pDoc->d_choice));
}

void CRightImageView::OnDraw(CDC* pDC)
{
	pDoc =(CGaMatchDoc*) GetDocument();
	LPRECT lpRect;
	RECT   rect;
    POINT  pt;
	double x0,y0;
	HDIB  hDIB;
	lpRect=▭
	GetClientRect(lpRect);
    pt=GetDeviceScrollPosition();
	x0=pt.x/pDoc->ZoomFractor;
	y0=pt.y/pDoc->ZoomFractor;	    
	hDIB = pDoc->GetRImage(pDoc->d_choice);
	if (hDIB != NULL)
	{
		LPSTR lpDIB = (LPSTR) ::GlobalLock((HGLOBAL) hDIB);
		int cxDIB = (int) ::DIBWidth(lpDIB);         // Size of DIB - x
		int cyDIB = (int) ::DIBHeight(lpDIB);        // Size of DIB - y
		::GlobalUnlock((HGLOBAL) hDIB);
		CRect rcDIB;
		
		rcDIB.top = rcDIB.left = 0;
		rcDIB.right = cxDIB;
		rcDIB.bottom = cyDIB;
	
		CRect rcDest;
		if (pDC->IsPrinting())   // printer DC
		{
			// get size of printer page (in pixels)
			int cxPage = pDC->GetDeviceCaps(HORZRES);
			int cyPage = pDC->GetDeviceCaps(VERTRES);
			// get printer pixels per inch
			int cxInch = pDC->GetDeviceCaps(LOGPIXELSX);
			int cyInch = pDC->GetDeviceCaps(LOGPIXELSY);
			rcDest.top = rcDest.left = 0;
			rcDest.bottom = (int)(((double)cyDIB * cxPage * cyInch)
					/ ((double)cxDIB * cxInch));
			rcDest.right = cxPage;
		}
		else   // not printer DC
		{
			rcDest.top=rcDest.left=0;
			rcDest.bottom=(long)(pDoc->ZoomFractor*rcDIB.bottom);
			rcDest.right =(long)(pDoc->ZoomFractor*rcDIB.right);
			
		}
		::PaintDIB(pDC->m_hDC, &rcDest, pDoc->GetRImage(pDoc->d_choice),
			&rcDIB, pDoc->GetRImgPalette(pDoc->d_choice));	
		pDC->SetROP2(R2_BLACK);
	}
		
}

/////////////////////////////////////////////////////////////////////////////
// CRightImageView diagnostics

#ifdef _DEBUG
void CRightImageView::AssertValid() const
{
	CScrollView::AssertValid();
}

void CRightImageView::Dump(CDumpContext& dc) const
{
	CScrollView::Dump(dc);
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CRightImageView message handlers