usedoublependulumview.cpp

主要介绍vc++6.0的编程过程

// UseDoublePendulumView.cpp : implementation of the CUseDoublePendulumView class
//

#include "stdafx.h"
#include "UseDoublePendulum.h"

#include "UseDoublePendulumDoc.h"
#include "UseDoublePendulumView.h"

#include "PendulumValue.h"

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

/////////////////////////////////////////////////////////////////////////////
// CUseDoublePendulumView

IMPLEMENT_DYNCREATE(CUseDoublePendulumView, CView)

BEGIN_MESSAGE_MAP(CUseDoublePendulumView, CView)
	//{{AFX_MSG_MAP(CUseDoublePendulumView)
	ON_COMMAND(ID_FILE_SETPENDULUMVALUE, OnFileSetpendulumvalue)
	ON_WM_CREATE()
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CUseDoublePendulumView construction/destruction

CUseDoublePendulumView::CUseDoublePendulumView()
{
}

CUseDoublePendulumView::~CUseDoublePendulumView()
{
}

BOOL CUseDoublePendulumView::PreCreateWindow(CREATESTRUCT& cs)
{
	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CUseDoublePendulumView drawing

void CUseDoublePendulumView::OnDraw(CDC* pDC)
{
	CUseDoublePendulumDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
}

/////////////////////////////////////////////////////////////////////////////
// CUseDoublePendulumView diagnostics

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CUseDoublePendulumView message handlers

int CUseDoublePendulumView::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CView::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	SetTimer( 1, 100, NULL );
	
	return 0;
}

void CUseDoublePendulumView::OnTimer(UINT nIDEvent) 
{

	if( !m_bCreated ){
		m_bCreated = TRUE;
		RECT Rect;
		Rect.left = Rect.top = 0;
		Rect.right = Rect.bottom = 400;
		m_DoublePendulum.Create( "DoublePendulum",
			WS_VISIBLE, Rect, this, 0x5005 );
		}
	else
		m_DoublePendulum.Update();

	CView::OnTimer(nIDEvent);
}

void CUseDoublePendulumView::OnFileSetpendulumvalue() 
{
	CPendulumValue PendulumValue;

	if( PendulumValue.DoModal() == IDOK )
		m_DoublePendulum.SetValue(
			(double) atof( PendulumValue.m_strPendulumValue ) );

}