mygraphview.cpp

这个是我们学校用的VC++教案

// MyGraphView.cpp : implementation of the CMyGraphView class
//

#include "stdafx.h"
#include "MyGraph.h"

#include "MyGraphDoc.h"
#include "MyGraphView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMyGraphView

IMPLEMENT_DYNCREATE(CMyGraphView, CView)

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

/////////////////////////////////////////////////////////////////////////////
// CMyGraphView construction/destruction

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

}

CMyGraphView::~CMyGraphView()
{
}

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

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CMyGraphView drawing

void CMyGraphView::OnDraw(CDC* pDC)
{
	CMyGraphDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here

	for(int xPos=20;xPos<100;xPos+=10)
		pDC->SetPixel(xPos,30,RGB(0,0,0));    // 绘制像素点
	POINT polylpt[5]={{10,100},{50,60},{120,80},{80,150},{30,130}};
	pDC->Polyline(polylpt,5);        // 绘制五条折线
	POINT polybpt[4]={{150,160},{220,60},{300,180},{330,20}};
	pDC->PolyBezier(polybpt,4);   // 绘制贝济埃曲线

	CBrush  *pBrhOld;
	pBrhOld=(CBrush*)pDC->SelectStockObject(LTGRAY_BRUSH);    // 使用浅灰色堆画刷
 	pDC->RoundRect(400,30,550,100,20,20);    // 绘制圆角矩形
	pDC->Arc(20,200,200,300,200,250,20,200);     //  绘制椭圆弧
	pDC->Pie(220,200,400,380,380,270,240,220);      // 绘制扇形
	pDC->Chord(420,120,540,240,520,160,420,180);      // 绘制弦形
	POINT polygpt[5]={{450,200},{530,220},{560,300},{480,320},{430,280}};
	pDC->Polygon(polygpt,5);        // 绘制五边形
	pDC->SelectObject(pBrhOld);       // 恢复系统默认的画刷
}

/////////////////////////////////////////////////////////////////////////////
// CMyGraphView diagnostics

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CMyGraphView message handlers