www.pudn.com > Evd.rar > Ex06dView.cpp

// Ex06dView.cpp : implementation of the CEx06dView class 
// 
 
#include "stdafx.h" 
#include "Ex06d.h" 
 
#include "Ex06dDoc.h" 
#include "Ex06dView.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#endif 
 
 
// CEx06dView 
 
IMPLEMENT_DYNCREATE(CEx06dView, CScrollView) 
 
BEGIN_MESSAGE_MAP(CEx06dView, CScrollView) 
	// 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) 
	ON_WM_LBUTTONDOWN() 
END_MESSAGE_MAP() 
 
// CEx06dView construction/destruction 
 
CEx06dView::CEx06dView() 
{ 
	// TODO: add construction code here 
 
} 
 
CEx06dView::~CEx06dView() 
{ 
} 
 
BOOL CEx06dView::PreCreateWindow(CREATESTRUCT& cs) 
{ 
	// TODO: Modify the Window class or styles here by modifying 
	//  the CREATESTRUCT cs 
 
	return CScrollView::PreCreateWindow(cs); 
} 
 
// CEx06dView drawing 
 
void CEx06dView::OnDraw(CDC* pDC) 
{ 
	CEx06dDoc* pDoc = GetDocument(); 
	BeginWaitCursor(); 
    m_dibResource.UsePalette(pDC); // should be in palette 
    m_dibFile.UsePalette(pDC);     //  message handlers, not here 
    pDC->TextOut(0, 0,  
        "Press the left mouse button here to load a file."); 
    CSize sizeResourceDib = m_dibResource.GetDimensions(); 
    sizeResourceDib.cx *= 30; 
    sizeResourceDib.cy *= -30; 
    m_dibResource.Draw(pDC, CPoint(0, -800), sizeResourceDib); 
    CSize sizeFileDib = m_dibFile.GetDimensions(); 
    sizeFileDib.cx *= 30; 
    sizeFileDib.cy *= -30; 
    m_dibFile.Draw(pDC, CPoint(1800, -800), sizeFileDib); 
    EndWaitCursor(); 
 
} 
 
void CEx06dView::OnInitialUpdate() 
{ 
	CScrollView::OnInitialUpdate(); 
	CSize sizeTotal(30000, 40000); // 30-by-40 cm 
    CSize sizeLine = CSize(sizeTotal.cx / 100, sizeTotal.cy / 100); 
    SetScrollSizes(MM_HIMETRIC, sizeTotal, sizeTotal, sizeLine); 
 
    LPVOID lpvResource = (LPVOID) ::LoadResource(NULL, 
        ::FindResource(NULL, MAKEINTRESOURCE(IDB_REDBLOCKS), 
                       RT_BITMAP)); 
    m_dibResource.AttachMemory(lpvResource); // no need for 
                                             //  ::LockResource 
    CClientDC dc(this); 
    TRACE("bits per pixel = %d\n", dc.GetDeviceCaps(BITSPIXEL)); 
 
} 
 
 
// CEx06dView printing 
 
BOOL CEx06dView::OnPreparePrinting(CPrintInfo* pInfo) 
{ 
	// default preparation 
	return DoPreparePrinting(pInfo); 
} 
 
void CEx06dView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) 
{ 
	// TODO: add extra initialization before printing 
} 
 
void CEx06dView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) 
{ 
	// TODO: add cleanup after printing 
} 
 
 
// CEx06dView diagnostics 
 
#ifdef _DEBUG 
void CEx06dView::AssertValid() const 
{ 
	CScrollView::AssertValid(); 
} 
 
void CEx06dView::Dump(CDumpContext& dc) const 
{ 
	CScrollView::Dump(dc); 
} 
 
CEx06dDoc* CEx06dView::GetDocument() const // non-debug version is inline 
{ 
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CEx06dDoc))); 
	return (CEx06dDoc*)m_pDocument; 
} 
#endif //_DEBUG 
 
 
// CEx06dView message handlers 
#define MEMORY_MAPPED_FILES 
void CEx06dView::OnLButtonDown(UINT nFlags, CPoint point) 
{ 
	CFileDialog dlg(TRUE, "bmp", "*.bmp"); 
    if (dlg.DoModal() != IDOK) { 
        return; 
    } 
#ifdef MEMORY_MAPPED_FILES 
    if (m_dibFile.AttachMapFile(dlg.GetPathName(), 
            TRUE) == TRUE) { // share 
        Invalidate(); 
    } 
 #else 
    CFile file; 
    file.Open(dlg.GetPathName(), CFile::modeRead); 
    if (m_dibFile.Read(&file) == TRUE) { 
        Invalidate(); 
    } 
#endif // MEMORY_MAPPED_FILES 
    CClientDC dc(this); 
    m_dibFile.SetSystemPalette(&dc); 
 
}