dibdisplayview.cpp

數位影像處理技術 適合給初學者使用 教授如何利用VC++6.0讀BMP 或者是其他影像規格

// DIBDisplayView.cpp : implementation of the CDIBDisplayView class
//

#include "stdafx.h"
#include "DIBDisplay.h"

#include "DIBDisplayDoc.h"
#include "DIBDisplayView.h"
#include "mainfrm.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CDIBDisplayView

IMPLEMENT_DYNCREATE(CDIBDisplayView, CScrollView)

BEGIN_MESSAGE_MAP(CDIBDisplayView, CScrollView)
	//{{AFX_MSG_MAP(CDIBDisplayView)
	ON_WM_ERASEBKGND()
	ON_COMMAND(ID_EDIT_COPY, OnEditCopy)
	ON_UPDATE_COMMAND_UI(ID_EDIT_COPY, OnUpdateEditCopy)
	ON_COMMAND(ID_EDIT_PASTE, OnEditPaste)
	ON_UPDATE_COMMAND_UI(ID_EDIT_PASTE, OnUpdateEditPaste)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CScrollView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CScrollView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CScrollView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDIBDisplayView construction/destruction

CDIBDisplayView::CDIBDisplayView()
{
	// TODO: add construction code here

}

CDIBDisplayView::~CDIBDisplayView()
{
}

BOOL CDIBDisplayView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CScrollView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CDIBDisplayView drawing

void CDIBDisplayView::OnDraw(CDC* pDC)
{
	BeginWaitCursor();

	CDIBDisplayDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);

	HDIB hDIB = pDoc->GetHDIB();
	if (hDIB != NULL)
	{
		LPSTR lpDIB = (LPSTR) ::GlobalLock((HGLOBAL) hDIB);
		int cxDIB = (int) pDoc->GetDibImage()->DIBWidth(lpDIB);
		int cyDIB = (int) pDoc->GetDibImage()->DIBHeight(lpDIB);

		::GlobalUnlock((HGLOBAL) hDIB);
		
		CRect rcDIB;
		rcDIB.top = rcDIB.left = 0;
		rcDIB.right = cxDIB;
		rcDIB.bottom = cyDIB;
		
		CRect rcDest;
		
		if (pDC->IsPrinting())
		{
			// 琌ゴ