www.pudn.com > TestBitmap.rar > TestBitmapView.cpp

// TestBitmapView.cpp : implementation of the CTestBitmapView class 
// 
 
#include "stdafx.h" 
#include "TestBitmap.h" 
 
#include "TestBitmapDoc.h" 
#include "TestBitmapView.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CTestBitmapView 
 
IMPLEMENT_DYNCREATE(CTestBitmapView, CView) 
 
BEGIN_MESSAGE_MAP(CTestBitmapView, CView) 
	//{{AFX_MSG_MAP(CTestBitmapView) 
	ON_COMMAND(ID_DisplayBitmap, OnDisplayBitmap) 
	//}}AFX_MSG_MAP 
	// Standard printing commands 
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint) 
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint) 
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview) 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CTestBitmapView construction/destruction 
 
CTestBitmapView::CTestBitmapView() 
{ 
	// TODO: add construction code here 
 
} 
 
CTestBitmapView::~CTestBitmapView() 
{ 
} 
 
BOOL CTestBitmapView::PreCreateWindow(CREATESTRUCT& cs) 
{ 
	// TODO: Modify the Window class or styles here by modifying 
	//  the CREATESTRUCT cs 
 
	return CView::PreCreateWindow(cs); 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CTestBitmapView drawing 
 
void CTestBitmapView::OnDraw(CDC* pDC) 
{ 
	CTestBitmapDoc* pDoc = GetDocument(); 
	ASSERT_VALID(pDoc); 
 
    CPoint size(m_Bm.bmWidth,m_Bm.bmHeight); 
	pDC->DPtoLP(&size); 
	CPoint org(0,0); 
	pDC->DPtoLP(&org); 
	pDC->BitBlt(0,0,size.x,size.y,  
                  &m_DC, org.x, org.y,SRCCOPY); 
    
	/*RECT Rect; 
	Rect.left = Rect.top = 10; 
	Rect.right = Rect.bottom = 100; 
	CBrush Brush(RGB(255,0,0)); 
	pDC->FillRect(&Rect,&Brush); 
*/ 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CTestBitmapView printing 
 
BOOL CTestBitmapView::OnPreparePrinting(CPrintInfo* pInfo) 
{ 
	// default preparation 
	return DoPreparePrinting(pInfo); 
} 
 
void CTestBitmapView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) 
{ 
	// TODO: add extra initialization before printing 
} 
 
void CTestBitmapView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) 
{ 
	// TODO: add cleanup after printing 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CTestBitmapView diagnostics 
 
#ifdef _DEBUG 
void CTestBitmapView::AssertValid() const 
{ 
	CView::AssertValid(); 
} 
 
void CTestBitmapView::Dump(CDumpContext& dc) const 
{ 
	CView::Dump(dc); 
} 
 
CTestBitmapDoc* CTestBitmapView::GetDocument() // non-debug version is inline 
{ 
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CTestBitmapDoc))); 
	return (CTestBitmapDoc*)m_pDocument; 
} 
#endif //_DEBUG 
 
///////////////////////////////////////////////////////////////////////////// 
// CTestBitmapView message handlers 
 
void CTestBitmapView::OnDisplayBitmap()  
{ 
	CString str; 
	CDC *pDC = this->GetDC(); 
    m_DC.CreateCompatibleDC(pDC); 
	CFileDialog dlg(TRUE,"bmp","*.bmp"); 
	if(dlg.DoModal()==IDOK) 
	{ 
		str = dlg.GetPathName(); 
    } 
	m_hNewBitmap = (HBITMAP) LoadImage( 
	            AfxGetInstanceHandle(),   // handle to instance 
				str,  // name or identifier of the image (root is where project is) 
				IMAGE_BITMAP,        // image types 
				0,     // desired width 
				0,     // desired height 
				LR_LOADFROMFILE); 
	GetObject( m_hNewBitmap , sizeof(BITMAP), &m_Bm ); 
	 
 
	VERIFY(m_hOldBitmap = (HBITMAP)SelectObject(m_DC, m_hNewBitmap )); 
	m_DC.SetMapMode(pDC->GetMapMode()); 
	Invalidate(); 
}