vc07view.cpp

来自「Visual C++ 6.0编程基础与范例」· C++ 代码 · 共 149 行

// VC07View.cpp : implementation of the CVC07View class
//

#include "stdafx.h"
#include "VC07.h"

#include "VC07Doc.h"
#include "VC07View.h"

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

/////////////////////////////////////////////////////////////////////////////
// CVC07View

IMPLEMENT_DYNCREATE(CVC07View, CView)

BEGIN_MESSAGE_MAP(CVC07View, CView)
	//{{AFX_MSG_MAP(CVC07View)
	ON_WM_LBUTTONDOWN()
	ON_WM_LBUTTONUP()
	ON_WM_MOUSEMOVE()
	//}}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()

/////////////////////////////////////////////////////////////////////////////
// CVC07View construction/destruction

CVC07View::CVC07View()
{
	// TODO: add construction code here
	m_move=0;
	m_hc=AfxGetApp()->LoadStandardCursor(IDC_CROSS);
}

CVC07View::~CVC07View()
{
}

BOOL CVC07View::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CVC07View drawing

void CVC07View::OnDraw(CDC* pDC)
{
	CVC07Doc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	int index;
	index=pDoc->GetTotalEllipseRec();
	while(index--)
		pDoc->GetEllipseRec(index)->DrawEllipse(pDC);
	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CVC07View printing

BOOL CVC07View::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CVC07View::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CVC07View::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CVC07View diagnostics

#ifdef _DEBUG
void CVC07View::AssertValid() const
{
	CView::AssertValid();
}

void CVC07View::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CVC07Doc* CVC07View::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CVC07Doc)));
	return (CVC07Doc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CVC07View message handlers

void CVC07View::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	m_now=point;
	m_begin=point;
	m_move=1;
	RECT rect;
	GetClientRect(&rect);
	ClientToScreen(&rect);
	ClipCursor(&rect);
	CView::OnLButtonDown(nFlags, point);
}

void CVC07View::OnLButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	m_move=0;
	ClipCursor(NULL);
	CVC07Doc *pDoc=GetDocument();
	pDoc->AddEllipseRec(m_begin.x,m_begin.y,point.x,point.y);
	CView::OnLButtonUp(nFlags, point);
}

void CVC07View::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	SetCursor(m_hc);
	if(m_move)
	{
		CClientDC cdc(this);
		cdc.SetROP2(R2_NOT);
		cdc.Ellipse(m_begin.x,m_begin.y,m_now.x,m_now.y);
		cdc.Ellipse(m_begin.x,m_begin.y,point.x,point.y);
		m_now=point;
	}
	CView::OnMouseMove(nFlags, point);
}