test6view.cpp

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// test6View.cpp : implementation of the CTest6View class
//

#include "stdafx.h"
#include "test6.h"

#include "test6Doc.h"
#include "test6View.h"

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

/////////////////////////////////////////////////////////////////////////////
// CTest6View

IMPLEMENT_DYNCREATE(CTest6View, CView)

BEGIN_MESSAGE_MAP(CTest6View, CView)
	//{{AFX_MSG_MAP(CTest6View)
		// 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
	// 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()

/////////////////////////////////////////////////////////////////////////////
// CTest6View construction/destruction

CTest6View::CTest6View()
{
	// TODO: add construction code here

}

CTest6View::~CTest6View()
{
}

BOOL CTest6View::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CTest6View drawing

void CTest6View::OnDraw(CDC* pDC)
{
	CTest6Doc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
    int xa,ya,xb,yb;
	xa=500;
	ya=200;
	xb=30;
	yb=500;//初始化

	int dx,dy,steps;
	float deta_x,deta_y,x,y;
	dx=xb-xa;
	dy=yb-ya;
	
	if(abs(dx)>abs(dy))
	{
		steps=abs(dx);
	}
	else
	{
		steps=abs(dy);
	}
	deta_x=(float)dx/(float)steps;
	deta_y=(float)dy/(float)steps;
	x=xa;
	y=ya;
	pDC->SetPixel(x,y,RGB(0,255,0));
	for(int i=1;i<=steps;i++)
	{
		x+=deta_x;
		y+=deta_y;
		pDC->SetPixel(x,y,RGB(0,255,0));
	}
}

/////////////////////////////////////////////////////////////////////////////
// CTest6View printing

BOOL CTest6View::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CTest6View::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CTest6View::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CTest6View diagnostics

#ifdef _DEBUG
void CTest6View::AssertValid() const
{
	CView::AssertValid();
}

void CTest6View::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CTest6Doc* CTest6View::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CTest6Doc)));
	return (CTest6Doc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CTest6View message handlers