www.pudn.com > pdf417.rar > pdf417View.cpp

// pdf417View.cpp : implementation of the CPdf417View class 
// 
 
#include "stdafx.h" 
#include "pdf417.h" 
 
#include "pdf417Doc.h" 
#include "pdf417View.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CPdf417View 
 
IMPLEMENT_DYNCREATE(CPdf417View, CScrollView) 
 
BEGIN_MESSAGE_MAP(CPdf417View, CScrollView) 
	//{{AFX_MSG_MAP(CPdf417View) 
		// NOTE - the ClassWizard will add and remove mapping macros here. 
		//    DO NOT EDIT what you see in these blocks of generated code! 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CPdf417View construction/destruction 
 
CPdf417View::CPdf417View() 
{ 
	// TODO: add construction code here 
 
} 
 
CPdf417View::~CPdf417View() 
{ 
} 
 
BOOL CPdf417View::PreCreateWindow(CREATESTRUCT& cs) 
{ 
	// TODO: Modify the Window class or styles here by modifying 
	//  the CREATESTRUCT cs 
 
	return CScrollView::PreCreateWindow(cs); 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CPdf417View drawing 
 
void CPdf417View::OnDraw(CDC* pDC) 
{ 
	CPdf417Doc* pDoc = GetDocument(); 
	ASSERT_VALID(pDoc); 
 
	if(!pDoc->m_filename.IsEmpty()) 
	{ 
		CBitmap bitmap; 
		//调入文件 
		HBITMAP hbitmap=(HBITMAP)::LoadImage( 
			NULL, 
			pDoc->m_filename, 
			IMAGE_BITMAP, 
			0,0, 
			LR_LOADFROMFILE); 
 
		bitmap.Attach(hbitmap); 
		CDC dcComp; 
		dcComp.CreateCompatibleDC(pDC); 
		dcComp.SelectObject(&bitmap); 
 
		BITMAP bmInfo; 
		bitmap.GetObject(sizeof(BITMAP),&bmInfo); 
 
		//设置View的滚动条范围 
		CSize sizeTotal; 
		sizeTotal.cx = bmInfo.bmWidth; 
		sizeTotal.cy = bmInfo.bmHeight; 
		SetScrollSizes(MM_TEXT,sizeTotal); 
 
		pDC->BitBlt(0,0,bmInfo.bmWidth,bmInfo.bmHeight, 
			&dcComp,0,0,SRCCOPY); 
	} 
} 
 
void CPdf417View::OnInitialUpdate() 
{ 
	CScrollView::OnInitialUpdate(); 
 
	CSize sizeTotal; 
	// TODO: calculate the total size of this view 
	sizeTotal.cx = sizeTotal.cy = 100; 
	SetScrollSizes(MM_TEXT, sizeTotal); 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CPdf417View diagnostics 
 
#ifdef _DEBUG 
void CPdf417View::AssertValid() const 
{ 
	CScrollView::AssertValid(); 
} 
 
void CPdf417View::Dump(CDumpContext& dc) const 
{ 
	CScrollView::Dump(dc); 
} 
 
CPdf417Doc* CPdf417View::GetDocument() // non-debug version is inline 
{ 
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CPdf417Doc))); 
	return (CPdf417Doc*)m_pDocument; 
} 
#endif //_DEBUG 
 
///////////////////////////////////////////////////////////////////////////// 
// CPdf417View message handlers