计数器
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视图类的.h文件
// CountView.h : interface of the CCountView class///////////////////////////////////////////////////////////////////////////////#if !defined(AFX_COUNTVIEW_H__F8822A94_E15E_4B73_8079_E61FAD0D6178__INCLUDED_)#define AFX_COUNTVIEW_H__F8822A94_E15E_4B73_8079_E61FAD0D6178__INCLUDED_#if _MSC_VER > 1000#pragma once#endif // _MSC_VER > 1000class CCountView : public CView{protected: // create from serialization onlyCCountView();DECLARE_DYNCREATE(CCountView)// Attributespublic:CCountDoc* GetDocument();// Operationspublic:int nCount;CString str;// Overrides// ClassWizard generated virtual function overrides//{{AFX_VIRTUAL(CCountView)public:virtual void OnDraw(CDC* pDC); // overridden to draw this viewvirtual BOOL PreCreateWindow(CREATESTRUCT& cs);protected:virtual BOOL OnPreparePrinting(CPrintInfo* pInfo);virtual void OnBeginPrinting(CDC* pDC, CPrintInfo* pInfo);virtual void OnEndPrinting(CDC* pDC, CPrintInfo* pInfo);//}}AFX_VIRTUAL// Implementationpublic:virtual ~CCountView();#ifdef _DEBUGvirtual void AssertValid() const;virtual void Dump(CDumpContext& dc) const;#endifprotected:// Generated message map functionsprotected://{{AFX_MSG(CCountView)afx_msg void OnLButtonDown(UINT nFlags, CPoint point);afx_msg void OnRButtonDown(UINT nFlags, CPoint point);//}}AFX_MSGDECLARE_MESSAGE_MAP()};#ifndef _DEBUG // debug version in CountView.cppinline CCountDoc* CCountView::GetDocument() { return (CCountDoc*)m_pDocument; }#endif///////////////////////////////////////////////////////////////////////////////{{AFX_INSERT_LOCATION}}// Microsoft Visual C++ will insert additional declarations immediately before the previous line.#endif // !defined(AFX_COUNTVIEW_H__F8822A94_E15E_4B73_8079_E61FAD0D6178__INCLUDED_)下面是视图类的cpp文件
// CountView.cpp : implementation of the CCountView class//#include "stdafx.h"#include "Count.h"#include "CountDoc.h"#include "CountView.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE[] = __FILE__;#endif/////////////////////////////////////////////////////////////////////////////// CCountViewIMPLEMENT_DYNCREATE(CCountView, CView)BEGIN_MESSAGE_MAP(CCountView, CView)//{{AFX_MSG_MAP(CCountView)ON_WM_LBUTTONDOWN()ON_WM_RBUTTONDOWN()//}}AFX_MSG_MAP// Standard printing commandsON_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()/////////////////////////////////////////////////////////////////////////////// CCountView construction/destructionCCountView::CCountView():nCount(0){// TODO: add construction code here}CCountView::~CCountView(){}BOOL CCountView::PreCreateWindow(CREATESTRUCT& cs){// TODO: Modify the Window class or styles here by modifying// the CREATESTRUCT csreturn CView::PreCreateWindow(cs);}/////////////////////////////////////////////////////////////////////////////// CCountView drawingvoid CCountView::OnDraw(CDC* pDC){CCountDoc* pDoc = GetDocument();ASSERT_VALID(pDoc);// TODO: add draw code for native data hereCRect rect;this->GetWindowRect(&rect); int x,y;x=rect.Width()/2;y=rect.Height()/2;//进入客户区中间位置str.Format("%d",nCount);//做一个类型转换pDC->TextOut(x,y,str);//显示在屏幕上}/////////////////////////////////////////////////////////////////////////////// CCountView printingBOOL CCountView::OnPreparePrinting(CPrintInfo* pInfo){// default preparationreturn DoPreparePrinting(pInfo);}void CCountView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/){// TODO: add extra initialization before printing}void CCountView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/){// TODO: add cleanup after printing}/////////////////////////////////////////////////////////////////////////////// CCountView diagnostics#ifdef _DEBUGvoid CCountView::AssertValid() const{CView::AssertValid();}void CCountView::Dump(CDumpContext& dc) const{CView::Dump(dc);}CCountDoc* CCountView::GetDocument() // non-debug version is inline{ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CCountDoc)));return (CCountDoc*)m_pDocument;}#endif //_DEBUG/////////////////////////////////////////////////////////////////////////////// CCountView message handlersvoid CCountView::OnLButtonDown(UINT nFlags, CPoint point) {// TODO: Add your message handler code here and/or call defaultnCount+=1;Invalidate();CView::OnLButtonDown(nFlags, point);}void CCountView::OnRButtonDown(UINT nFlags, CPoint point) {// TODO: Add your message handler code here and/or call defaultnCount-=1;Invalidate();CView::OnRButtonDown(nFlags, point);}
