myview.cpp

VC面向对象的学习教程

// MyView.cpp : implementation of the CMyView class
//

#include "stdafx.h"
#include "My.h"

#include "MyDoc.h"
#include "MyView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMyView

IMPLEMENT_DYNCREATE(CMyView, CView)

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

/////////////////////////////////////////////////////////////////////////////
// CMyView construction/destruction

CMyView::CMyView()
{
	// TODO: add construction code here
	m_bCaptured = FALSE;
}

CMyView::~CMyView()
{
}

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

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CMyView drawing

void CMyView::OnDraw(CDC* pDC)
{
	CMyDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	for(int i=0; i<CHIP_COUNT; i++)
		pDoc->m_chipList[i].DrawChip(pDC);
}

/////////////////////////////////////////////////////////////////////////////
// CMyView printing

BOOL CMyView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	pInfo->SetMaxPage(1);
	return DoPreparePrinting(pInfo);
}

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

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

/////////////////////////////////////////////////////////////////////////////
// CMyView diagnostics

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CMyView message handlers

void CMyView::OnInitialUpdate() 
{
	CView::OnInitialUpdate();
	
	// TODO: Add your specialized code here and/or call the base class
	Invalidate();	
}

void CMyView::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	CMyDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	for(int i=CHIP_COUNT-1; i>=0; i--)
		if(pDoc->m_chipList[i].PtInChip(point))
		{
			SetCapture();
			m_bCaptured	= TRUE;
			m_pointMouse	= point;
			m_nCurrIndex	= i;
			break;
		}
	
	CView::OnLButtonDown(nFlags, point);
}

void CMyView::OnLButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	if(m_bCaptured)
	{
		::ReleaseCapture();
		m_bCaptured = FALSE;
	}
	
	CView::OnLButtonUp(nFlags, point);
}

void CMyView::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	if(m_bCaptured)
	{
		CMyDoc* pDoc = GetDocument();
		ASSERT_VALID(pDoc);
		InvalidateRect(pDoc->m_chipList[m_nCurrIndex].GetRect());
		CSize offset(point-m_pointMouse);
		pDoc->m_chipList[m_nCurrIndex].MoveTo(offset);
		InvalidateRect(pDoc->m_chipList[m_nCurrIndex].GetRect());
		m_pointMouse = point;
		pDoc->SetModifiedFlag();
	}
	
	CView::OnMouseMove(nFlags, point);
}

void CMyView::OnRButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	CMyDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	for(int i=CHIP_COUNT-1; i>=0; i--)
		if(pDoc->m_chipList[i].PtInChip(point))
		{
			InvalidateRect(pDoc->m_chipList[i].GetRect());
			pDoc->m_chipList[i].Rotation();
			InvalidateRect(pDoc->m_chipList[i].GetRect(), FALSE);
			pDoc->SetModifiedFlag();
			break;
		}
	
	CView::OnRButtonDown(nFlags, point);
}