www.pudn.com > PtBarcodeDec.rar > SampleView.cpp

// SampleView.cpp : implementation of the CSampleView class 
// 
 
#include "stdafx.h" 
#include "Sample.h" 
 
#include "SampleDoc.h" 
#include "SampleView.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CSampleView 
 
IMPLEMENT_DYNCREATE(CSampleView, CScrollView) 
 
BEGIN_MESSAGE_MAP(CSampleView, CScrollView) 
    //{{AFX_MSG_MAP(CSampleView) 
    ON_COMMAND(ID_VIEW_ZOOM_LESS, OnViewZoomLess) 
    ON_COMMAND(ID_VIEW_ZOOM_MORE, OnViewZoomMore) 
    ON_UPDATE_COMMAND_UI(ID_VIEW_ZOOM_LESS, OnUpdateViewZoomLess) 
    ON_UPDATE_COMMAND_UI(ID_VIEW_ZOOM_MORE, OnUpdateViewZoomMore) 
    //}}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() 
 
///////////////////////////////////////////////////////////////////////////// 
// CSampleView construction/destruction 
 
CSampleView::CSampleView() 
{ 
    // TODO: add construction code here 
} 
 
CSampleView::~CSampleView() 
{ 
} 
 
BOOL CSampleView::PreCreateWindow(CREATESTRUCT& cs) 
{ 
    // TODO: Modify the Window class or styles here by modifying 
    //  the CREATESTRUCT cs 
 
    return CScrollView::PreCreateWindow(cs); 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CSampleView drawing 
 
void CSampleView::OnDraw(CDC* pDC) 
{ 
    CSampleDoc* pDoc = GetDocument(); 
    ASSERT_VALID(pDoc); 
    if(pDoc->m_image.pBits==NULL) 
        return; 
    PtShowImage( &pDoc->m_image, pDC->GetSafeHdc() , 50, 50, pDoc->m_scale ); 
     
    CSize sizeTotal( int(1.2*pDoc->m_scale*pDoc->m_image.dwWidth), int(1.2*pDoc->m_scale*pDoc->m_image.dwHeight) ); 
    CSize sizePage(sizeTotal.cx/2, sizeTotal.cy/2); 
    CSize sizeLine(sizeTotal.cx/10, sizeTotal.cy/10); 
    SetScrollSizes(MM_TEXT, sizeTotal, sizePage, sizeLine); 
     
    // TODO: add draw code for native data here 
} 
 
void CSampleView::OnInitialUpdate() 
{ 
    CScrollView::OnInitialUpdate(); 
 
    CSize sizeTotal; 
    // TODO: calculate the total size of this view 
    sizeTotal.cx = sizeTotal.cy = 100; 
    SetScrollSizes(MM_TEXT, sizeTotal); 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CSampleView printing 
 
BOOL CSampleView::OnPreparePrinting(CPrintInfo* pInfo) 
{ 
    // default preparation 
    return DoPreparePrinting(pInfo); 
} 
 
void CSampleView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) 
{ 
    // TODO: add extra initialization before printing 
} 
 
void CSampleView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) 
{ 
    // TODO: add cleanup after printing 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CSampleView diagnostics 
 
#ifdef _DEBUG 
void CSampleView::AssertValid() const 
{ 
    CScrollView::AssertValid(); 
} 
 
void CSampleView::Dump(CDumpContext& dc) const 
{ 
    CScrollView::Dump(dc); 
} 
 
CSampleDoc* CSampleView::GetDocument() // non-debug version is inline 
{ 
    ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CSampleDoc))); 
    return (CSampleDoc*)m_pDocument; 
} 
#endif //_DEBUG 
 
///////////////////////////////////////////////////////////////////////////// 
// CSampleView message handlers 
 
void CSampleView::OnViewZoomLess()  
{ 
    // TODO: Add your command handler code here 
    CSampleDoc* pDoc = GetDocument(); 
    pDoc->m_scale*=(2.0f/3.0f); 
    Invalidate(); 
     
} 
 
void CSampleView::OnViewZoomMore()  
{ 
    // TODO: Add your command handler code here 
    CSampleDoc* pDoc = GetDocument(); 
    pDoc->m_scale*=(3.0f/2.0f); 
    Invalidate(); 
} 
 
void CSampleView::OnUpdateViewZoomLess(CCmdUI* pCmdUI)  
{ 
    CSampleDoc* pDoc = GetDocument(); 
    if(pDoc->m_image.pBits) 
        pCmdUI->Enable(TRUE); 
    else 
        pCmdUI->Enable(FALSE);// TODO: Add your command update UI handler code here 
     
} 
 
void CSampleView::OnUpdateViewZoomMore(CCmdUI* pCmdUI)  
{ 
    CSampleDoc* pDoc = GetDocument(); 
    if(pDoc->m_image.pBits) 
        pCmdUI->Enable(TRUE); 
    else 
        pCmdUI->Enable(FALSE);// TODO: Add your command update UI handler code here 
     
}