ex_studentdoc.cpp

Visual C++应用教程-源代码 本书在复习C++基础知识后

// Ex_StudentDoc.cpp : implementation of the CEx_StudentDoc class
//

#include "stdafx.h"
#include "Ex_Student.h"

#include "Ex_StudentDoc.h"
#include "InputDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CEx_StudentDoc

IMPLEMENT_DYNCREATE(CEx_StudentDoc, CDocument)

BEGIN_MESSAGE_MAP(CEx_StudentDoc, CDocument)
	//{{AFX_MSG_MAP(CEx_StudentDoc)
	ON_COMMAND(ID_STUREC_ADD, OnSturecAdd)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CEx_StudentDoc construction/destruction

CEx_StudentDoc::CEx_StudentDoc()
{
	// TODO: add one-time construction code here

}

CEx_StudentDoc::~CEx_StudentDoc()
{
	int nIndex = GetAllRecNum();
	while (nIndex--)
		delete m_stuObArray.GetAt(nIndex);
	m_stuObArray.RemoveAll();
}

BOOL CEx_StudentDoc::OnNewDocument()
{
	if (!CDocument::OnNewDocument())
		return FALSE;

	// TODO: add reinitialization code here
	// (SDI documents will reuse this document)

	return TRUE;
}



/////////////////////////////////////////////////////////////////////////////
// CEx_StudentDoc serialization

void CEx_StudentDoc::Serialize(CArchive& ar)
{
	if (ar.IsStoring())	{
		m_stuObArray.Serialize(ar);
	} else	{
		m_stuObArray.Serialize(ar);
	}
}

/////////////////////////////////////////////////////////////////////////////
// CEx_StudentDoc diagnostics

#ifdef _DEBUG
void CEx_StudentDoc::AssertValid() const
{
	CDocument::AssertValid();
}

void CEx_StudentDoc::Dump(CDumpContext& dc) const
{
	CDocument::Dump(dc);
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CEx_StudentDoc commands
CStudent * CEx_StudentDoc::GetStudentAt(int nIndex)
{
		if ((nIndex < 0) || nIndex > m_stuObArray.GetUpperBound())
			return 0;	// 超界处理
		return (CStudent *)m_stuObArray.GetAt(nIndex);
}
int CEx_StudentDoc::GetAllRecNum()
{
		return m_stuObArray.GetSize();
}

CStudent::CStudent(CString name, CString id, float f1, float f2, float f3)
{
	strName = name;
	strNO = id;
	fScore1 = f1;
	fScore2 = f2;
	fScore3 = f3;
	fAverage = (float)((f1 + f2 + f3)/3.0);
}
void CStudent::Display(int y, CDC *pDC)
{
	CString str;
	str.Format("%s  %s  %f  %f  %f  %f", strName, strNO,
		fScore1, fScore2, fScore3, fAverage);
	pDC->TextOut(0, y, str);
}
IMPLEMENT_SERIAL(CStudent, CObject, 1)
void CStudent::Serialize(CArchive &ar)
{
	if (ar.IsStoring())
		ar<<strName<<strNO<<fScore1<<fScore2<<fScore3<<fAverage;
	else
		ar>>strName>>strNO>>fScore1>>fScore2>>fScore3>>fAverage;
}

void CEx_StudentDoc::OnSturecAdd() 
{
	// TODO: Add your command handler code here
	CInputDlg dlg;
	if (IDOK == dlg.DoModal())
	{
		// 添加记录
		CStudent *pStudent = new CStudent(dlg.m_strName,
			dlg.m_strNO, dlg.m_fScore1, dlg.m_fScore2, dlg.m_fScore3);
		m_stuObArray.Add(pStudent);
		SetModifiedFlag();		// 设置文档更改标志
		UpdateAllViews(NULL);	// 更新视图
	}
	
}