exampleview.cpp

C++编程的实际例子

// ExampleView.cpp : implementation of the CExampleView class
//

#include "stdafx.h"
#include "Example.h"

#include "ExampleDoc.h"
#include "ExampleView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CExampleView

IMPLEMENT_DYNCREATE(CExampleView, CView)

BEGIN_MESSAGE_MAP(CExampleView, CView)
	//{{AFX_MSG_MAP(CExampleView)
		// 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()

/////////////////////////////////////////////////////////////////////////////
// CExampleView construction/destruction

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

}

CExampleView::~CExampleView()
{
}

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

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CExampleView drawing

void CExampleView::OnDraw(CDC* pDC)
{
	CExampleDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	int nXStart=10, nYStart=10; 
	SIZE sz;              
	int nStrLen;          
	LPSTR lpsz="Hello";

	CFont MyFont;
	CFont *pOldFont;
	MyFont.CreateFont(100, 40, 0, 0, FW_HEAVY, 1, 0,
		0, ANSI_CHARSET, OUT_DEFAULT_PRECIS,
		CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
		DEFAULT_PITCH | FF_SWISS, "Times New Roman");
	pOldFont=pDC->SelectObject(&MyFont);

	pDC->BeginPath();
	pDC->TextOut(nXStart, nYStart,lpsz); 
	pDC->EndPath();
	pDC->SelectClipPath(RGN_DIFF); 

	nStrLen=lstrlen(lpsz);
	GetTextExtentPoint32(pDC->GetSafeHdc(),lpsz, nStrLen, &sz); 

	for (int i = nYStart + 1; i < (nYStart + sz.cy); i += 3) 
	{ 
		pDC->MoveTo( nXStart, i);
		pDC->LineTo(nXStart + sz.cx, i); 
	} 

	for (i = nXStart + 1; i < (nXStart + sz.cx); i += 3)
	{ 
		pDC->MoveTo(i, nYStart); 
		pDC->LineTo(i, nYStart + sz.cy); 
	} 
	pDC->SelectObject(pOldFont);
}

/////////////////////////////////////////////////////////////////////////////
// CExampleView diagnostics

#ifdef _DEBUG
void CExampleView::AssertValid() const
{
	CView::AssertValid();
}

void CExampleView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CExampleDoc* CExampleView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CExampleDoc)));
	return (CExampleDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CExampleView message handlers