mlview.cpp

这是一个模拟数控加工轨迹的实例源码, 非常有参考价值

// mlView.cpp : implementation of the CMlView class
//

#include "stdafx.h"
#include "ml.h"
#include "dlg1.h"
#include "mlDoc.h"
#include "mlView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMlView

IMPLEMENT_DYNCREATE(CMlView, CView)

BEGIN_MESSAGE_MAP(CMlView, CView)
	//{{AFX_MSG_MAP(CMlView)
	ON_COMMAND(IDC_CAOZUO, OnCaozuo)
	ON_WM_TIMER()
	ON_COMMAND(IDC_CLEAR, OnClear)
	ON_WM_CREATE()
	//}}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()

/////////////////////////////////////////////////////////////////////////////
// CMlView construction/destruction

CMlView::CMlView()
{x=0;
y=0;
xe=0;
f=0;
j=0;
ye=0;
	// TODO: add construction code here

}

CMlView::~CMlView()
{
}

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

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CMlView drawing

void CMlView::OnDraw(CDC* pDC)
{
	CMlDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	SetMOP(pDC);
pDC->TextOut (-3,-3,"0");
pDC->MoveTo(0,0);
pDC->LineTo (1000,0);
pDC->MoveTo(1000,0);
pDC->LineTo (960,20);
pDC->MoveTo(1000,0);
pDC->LineTo (960,-20);
pDC->MoveTo(0,0);
pDC->LineTo (0,800);
pDC->MoveTo (0,800);
pDC->LineTo (20,760);
pDC->MoveTo (0,800);
pDC->LineTo (-20,760);
	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CMlView printing

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CMlView diagnostics

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CMlView message handlers

void CMlView::OnCaozuo() 
{
	// TODO: Add your command handler code here
	CDC *pDC=GetDC();
	CDlg1 dlg;
if(dlg.DoModal()==IDOK)
{j=dlg.m_x+dlg.m_y;
xe=dlg.m_x;
ye=dlg.m_y ;
CString str;
str.Format ("你输入的坐标值为(%d,%d)",xe,ye);
pDC->SetTextColor(RGB(200,10,50));
pDC->TextOut(300,300,str); 
SetMOP(pDC);
pDC->MoveTo(0,0);
pDC->LineTo (xe*100,ye*100);
SetTimer(0,1000,NULL);
}
}

void CMlView::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	CDC *pDC;
pDC=GetDC();
SetMOP(pDC);
CPen newPen(PS_SOLID,4,RGB(200,10,20));
CPen *OldPen=pDC->SelectObject(&newPen);
 pDC->MoveTo(x*100,y*100);
	// TODO: 在此添加消息处理程序代码和/或调用默认值
   if(j>0)
   {
	   if(f>=0) {x=x+1;f=f-ye;}
	   else   if(f<0)  {y=y+1; f=f+xe;}
	   pDC->LineTo (x*100,y*100);
	   pDC->MoveTo(x*100,y*100);
	   j--;   
   }
   else
   {
 
   KillTimer(0);
   pDC->SelectObject(OldPen);
   }
	CView::OnTimer(nIDEvent);
}

void CMlView::SetMOP(CDC *pDC)
{pDC->SetMapMode (MM_LOMETRIC);
CRect rc;
GetClientRect(&rc);
pDC->SetViewportOrg(rc.Width ()/2,rc.Height ()/2);

}

void CMlView::OnClear() 
{this->Invalidate(true);
this->x=0;
this->y=0;
this->f=0;
	// TODO: Add your command handler code here
	
}

int CMlView::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CView::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	// TODO: Add your specialized creation code here
	 m_btton.Create ("单击设置终点坐标",WS_CHILD|WS_VISIBLE,CRect(100,100,250,140),this,IDC_CAOZUO);
   m_btton.ShowWindow (SW_SHOW);
   m_btton1.Create ("清理",WS_CHILD|WS_VISIBLE,CRect(100,140,250,180),this,IDC_CLEAR);
   m_btton1.ShowWindow (SW_SHOW);
	return 0;
}