studentinfodlg.cpp

学生管理信息系统[VC]实现源代码。MIS

// StudentInfoDlg.cpp : implementation file
//

#include "stdafx.h"
#include "StudentInfo.h"
#include "StudentInfoDlg.h"

#include "Link.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CStudentInfoDlg dialog

CStudentInfoDlg::CStudentInfoDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CStudentInfoDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CStudentInfoDlg)
	m_strNo = _T("");
	m_strName = _T("");
	m_strGender = _T("");
	m_strName3 = _T("");
	m_strNo3 = _T("");
	m_nChn2 = 0;
	m_nEng2 = 0;
	m_nMath2 = 0;
	m_strName2 = _T("");
	m_strNo2 = _T("");
	m_nAll = 0;
	m_strGender2 = _T("");
	m_nNum = 0;
	m_nOrder = 0;
	m_fRate = 0.0f;
	m_fChnAvg = 0.0f;
	m_fEngAvg = 0.0f;
	m_fMathAvg = 0.0f;
	m_fRateChn = 0.0f;
	m_fRateEng = 0.0f;
	m_fRateMath = 0.0f;
	m_nChn = 0;
	m_nEng = 0;
	m_nMath = 0;
	//}}AFX_DATA_INIT
	m_nFlag=0;
	m_nViewFlag=0;

	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

CStudentInfoDlg::~CStudentInfoDlg()
{
	CFile file("学籍信息.db", CFile::modeCreate | CFile::modeWrite);
	CArchive ar(&file, CArchive::store);
	int len;
	len=m_link.ListSize();
	ar<<len;
	Node *curNode;
	curNode=m_link.GetFront();
	while(curNode!=NULL)
	{
		ar<<(CObject *)curNode;
		curNode=curNode->NextNode();
	}
}

void CStudentInfoDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CStudentInfoDlg)
	DDX_Text(pDX, IDC_EDIT_N0, m_strNo);
	DDX_Text(pDX, IDC_EDIT_NAME, m_strName);
	DDX_Text(pDX, IDC_EDIT_GENDER, m_strGender);
	DDX_Text(pDX, IDC_EDIT_NAME3, m_strName3);
	DDX_Text(pDX, IDC_EDIT_NO3, m_strNo3);
	DDX_Text(pDX, IDC_EDIT_CHN2, m_nChn2);
	DDX_Text(pDX, IDC_EDIT_ENG2, m_nEng2);
	DDX_Text(pDX, IDC_EDIT_MATH2, m_nMath2);
	DDX_Text(pDX, IDC_EDIT_NAME2, m_strName2);
	DDX_Text(pDX, IDC_EDIT_NO2, m_strNo2);
	DDX_Text(pDX, IDC_EDIT_ALL, m_nAll);
	DDX_Text(pDX, IDC_EDIT_GENDER2, m_strGender2);
	DDX_Text(pDX, IDC_EDIT_NUM, m_nNum);
	DDX_Text(pDX, IDC_EDIT_ORDER, m_nOrder);
	DDX_Text(pDX, IDC_EDIT_CHNAVG, m_fChnAvg);
	DDX_Text(pDX, IDC_EDIT_ENGAVG, m_fEngAvg);
	DDX_Text(pDX, IDC_EDIT_MATHAVG, m_fMathAvg);
	DDX_Text(pDX, IDC_EDIT_RATECHN, m_fRateChn);
	DDX_Text(pDX, IDC_EDIT_RATEENG, m_fRateEng);
	DDX_Text(pDX, IDC_EDIT_RATEMATH, m_fRateMath);
	DDX_Text(pDX, IDC_EDIT_CHN, m_nChn);
	DDX_Text(pDX, IDC_EDIT_ENG, m_nEng);
	DDX_Text(pDX, IDC_EDIT_MATH, m_nMath);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CStudentInfoDlg, CDialog)
	//{{AFX_MSG_MAP(CStudentInfoDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BTN_INPUT, OnBtnInput)
	ON_BN_CLICKED(IDC_BTN_SEARCH, OnBtnSearch)
	ON_BN_CLICKED(IDC_BTN_DEL, OnBtnDel)
	ON_BN_CLICKED(IDC_BTN_STATE, OnBtnState)
	ON_BN_CLICKED(IDC_BTN_OK, OnBtnOk)
	ON_BN_CLICKED(IDC_BTN_PREV, OnBtnPrev)
	ON_BN_CLICKED(IDC_BTN_NEXT, OnBtnNext)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CStudentInfoDlg message handlers

BOOL CStudentInfoDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	ModifyStyle(0, WS_MINIMIZEBOX,0 );

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	OnBtnOk();

	CFile file("学籍信息.db", CFile::modeRead);
	CArchive ar(&file, CArchive::load);
	int len;
	ar>>len;
	Node *curNode;
	for(int i=0; i<len; i++)
	{
		ar>>curNode;
		m_link.InsertRear(&curNode->data);
	}
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CStudentInfoDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CStudentInfoDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CStudentInfoDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CStudentInfoDlg::OnBtnInput() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	if(8!=m_strNo.GetLength())
	{
		MessageBox("请输入8位的学号！");
		return;
	}
	int nNo=atoi(m_strNo);
	if(nNo<=0 || nNo>99999999)
	{
		MessageBox("请输入8位的学号！");
		return;
	}

	Node* pNode=m_link.SearchByNo(m_strNo);
	if(pNode!=NULL)
	{
		MessageBox("该学号已存在，学号不能重复！");
		return;
	}

	if("男"!=m_strGender && "女"!=m_strGender)
	{
		MessageBox("请在性别项输入“男”或“女”！");
		return;
	}
	if(m_nChn<0 || m_nChn>100)
	{
		MessageBox("请在语文成绩项输入0—100的数字！");
		return;
	}
	if(m_nMath<0 || m_nMath>100)
	{
		MessageBox("请在数学成绩项输入0—100的数字！");
		return;
	}
	if(m_nEng<0 || m_nEng>100)
	{
		MessageBox("请在英语成绩项输入0—100的数字！");
		return;
	}
	struct1 item;
	item.num=m_strNo;
	item.name=m_strName;
	item.sex=m_strGender;
	item.score[0]=m_nChn;
	item.score[1]=m_nMath;
	item.score[2]=m_nEng;
	m_link.InsertRear(&item);
	MessageBox("录入数据成功！");
}


void CStudentInfoDlg::OnBtnSearch() 
{
	// TODO: Add your control notification handler code here
	m_link.obArray.RemoveAll();
	m_nViewFlag=0;

	Node* pNode;

	UpdateData();
	if(m_strNo3!="")
	{
		if(8!=m_strNo3.GetLength())
		{
			MessageBox("请输入8位的学号！");
			return;
		}
		int nNo=atoi(m_strNo3);
		if(nNo<=0 || nNo>99999999)
		{
			MessageBox("请输入8位的学号！");
			return;
		}

		pNode=m_link.SearchByNo(m_strNo3);
		if(pNode==NULL)
		{
			MessageBox("该学号不存在！");
			return;
		}
		if(m_strName3!="")
			if(pNode->data.name!=m_strName3)
			{
				MessageBox("学号姓名不匹配！");
				return;
			}
	}
	else
	{
		if(m_strName3=="")
		{
			MessageBox("请输入学号或姓名！");
			return;
		}
		pNode=m_link.SearchByName(m_strName3);
		if(pNode==NULL)
		{
			MessageBox("该姓名不存在！");
			return;
		}
	}

	m_strNo2=pNode->data.num;
	m_strName2=pNode->data.name;
	m_strGender2=pNode->data.sex;
	m_nChn2=pNode->data.score[0];
	m_nMath2=pNode->data.score[1];
	m_nEng2=pNode->data.score[2];
	m_nAll=m_nChn2+m_nMath2+m_nEng2;
	m_nOrder=m_link.Paiming(pNode);
	
	m_nFlag=1;
	OnBtnOk();
	
	UpdateData(FALSE);

	if(m_link.obArray.GetSize()<2)
		((CButton*)GetDlgItem(IDC_BTN_NEXT))->EnableWindow(FALSE);

	((CButton*)GetDlgItem(IDC_BTN_PREV))->EnableWindow(FALSE);
	((CButton*)GetDlgItem(IDC_BTN_NEXT))->Invalidate();

}


void CStudentInfoDlg::OnBtnDel() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	if(8!=m_strNo3.GetLength())
	{
		MessageBox("请输入8位的学号！");
		return;
	}
	int nNo=atoi(m_strNo3);
	if(nNo<=0 || nNo>99999999)
	{
		MessageBox("请输入8位的学号！");
		return;
	}
	if(2==MessageBox(
		"本功能只根据学号删除信息！\n您确定要删除该学号标识的学生信息吗？",
		NULL, MB_OKCANCEL))
		return;
	Node* pNode=m_link.SearchByNo(m_strNo3);
	m_link.Delete(pNode->data.name);
	MessageBox("删除信息成功！");
}



void CStudentInfoDlg::OnBtnOk() 
{
	// TODO: Add your control notification handler code here
	static CRect rectLarge;
	static CRect rectSmall;
	if(rectLarge.IsRectNull())
	{
		GetWindowRect(&rectLarge);
		CStudentInfoDlg* pDlg=(CStudentInfoDlg* )GetDlgItem(IDC_SEPARATOR);
		pDlg->GetWindowRect(&rectSmall);
		rectSmall.left=rectLarge.left;
		rectSmall.top=rectLarge.top;
		rectSmall.bottom=rectLarge.bottom;
	}
	if(m_nFlag)
	{
		SetWindowPos(NULL, 0, 0, rectLarge.Width(), rectLarge.Height(), 
			SWP_NOMOVE | SWP_NOZORDER);
		m_nFlag=0;
	}
	else
	SetWindowPos(NULL, 0, 0, rectSmall.Width(), rectSmall.Height(), 
		SWP_NOMOVE | SWP_NOZORDER);
}


void CStudentInfoDlg::OnBtnState() 
{
	// TODO: Add your control notification handler code here
	m_nNum=m_link.ListSize();
	m_fRateChn=m_link.Passrate(0);
	m_fRateMath=m_link.Passrate(1);
	m_fRateEng=m_link.Passrate(2);

	m_fChnAvg=m_link.Average(0);
	m_fMathAvg=m_link.Average(1);
	m_fEngAvg=m_link.Average(2);

	UpdateData(FALSE);
}

void CStudentInfoDlg::OnBtnPrev() 
{
	// TODO: Add your control notification handler code here
	if(m_nViewFlag==m_link.obArray.GetSize()-1)
		((CButton*)GetDlgItem(IDC_BTN_NEXT))->EnableWindow();

	Node * pNode=(Node*)m_link.obArray.GetAt(--m_nViewFlag);
	m_strNo2=pNode->data.num;
	m_strName2=pNode->data.name;
	m_strGender2=pNode->data.sex;
	m_nChn2=pNode->data.score[0];
	m_nMath2=pNode->data.score[1];
	m_nEng2=pNode->data.score[2];
	m_nAll=m_nChn2+m_nMath2+m_nEng2;
	m_nOrder=m_link.Paiming(pNode);
	UpdateData(FALSE);

	if(m_nViewFlag==0)
		((CButton*)GetDlgItem(IDC_BTN_PREV))->EnableWindow(FALSE);
}

void CStudentInfoDlg::OnBtnNext() 
{
	// TODO: Add your control notification handler code here
	if(m_nViewFlag==0)
		((CButton*)GetDlgItem(IDC_BTN_PREV))->EnableWindow();

	Node * pNode=(Node*)m_link.obArray.GetAt(++m_nViewFlag);
	m_strNo2=pNode->data.num;
	m_strName2=pNode->data.name;
	m_strGender2=pNode->data.sex;
	m_nChn2=pNode->data.score[0];
	m_nMath2=pNode->data.score[1];
	m_nEng2=pNode->data.score[2];
	m_nAll=m_nChn2+m_nMath2+m_nEng2;
	m_nOrder=m_link.Paiming(pNode);
	UpdateData(FALSE);

	if(m_nViewFlag==m_link.obArray.GetSize()-1)
		((CButton*)GetDlgItem(IDC_BTN_NEXT))->EnableWindow(FALSE);
}