userdlg.cpp

大型实验：Unix文件管系统模拟。用内存中的一段区域模拟硬盘空间

// UserDlg.cpp : implementation file
//

#include "stdafx.h"
#include "FileSys.h"
#include "UserDlg.h"
#include "filsys.h"
#include "NewUserDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CUserDlg dialog


CUserDlg::CUserDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CUserDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CUserDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
}


void CUserDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CUserDlg)
	DDX_Control(pDX, IDC_LIST1, m_list);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CUserDlg, CDialog)
	//{{AFX_MSG_MAP(CUserDlg)
	ON_BN_CLICKED(IDC_BUTTON1, OnDeleteuser)
	ON_BN_CLICKED(IDC_BUTTON2, OnNewUser)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CUserDlg message handlers

BOOL CUserDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	//设置为报表形式
	DWORD dwStyle=GetWindowLong(m_list.m_hWnd,GWL_STYLE);
    SetWindowLong(m_list.m_hWnd,GWL_STYLE,dwStyle|LVS_REPORT);
    
	//设置为网格条纹和可以整行选择
	DWORD styles=m_list.GetExtendedStyle();
    m_list.SetExtendedStyle(styles | LVS_EX_FULLROWSELECT | LVS_EX_GRIDLINES); //给LIST添加网格
	
	//获得list的宽度
	CRect rect;
	m_list.GetWindowRect(&rect);
	//添加项
	m_list.InsertColumn(0," uid ",LVCFMT_LEFT,rect.Width()/4);
	m_list.InsertColumn(1,"账 号",LVCFMT_LEFT,rect.Width()/4);  
	m_list.InsertColumn(2,"密 码",LVCFMT_LEFT,rect.Width()/4);
	m_list.InsertColumn(3," gid ",LVCFMT_LEFT,rect.Width()/4);

	ReFrushlist();

	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CUserDlg::ReFrushlist()
{
	m_list.DeleteAllItems();
	m_list.SetRedraw(false);
	CString str;

	int i = 0;
	while(i<PWDNUM && pwd[i].p_uid!=0)
	{
		m_list.InsertItem(LVIF_TEXT | LVIF_STATE,i,"item 1",LVIS_SELECTED,LVIS_SELECTED,0,0);

		str.Format("%d",pwd[i].p_uid);
		m_list.SetItemText(i,0,str);

		m_list.SetItemText(i,1,pwd[i].username);

		if(pwd[user[user_id].u_uid-1].p_uid==pwd[i].p_uid)
			m_list.SetItemText(i,2,pwd[i].password);
		else
				m_list.SetItemText(i,2,"**********");
		str.Format("%d",pwd[i].p_gid);
		m_list.SetItemText(i,3,str);

		++i;
	}
	m_list.SetSelectionMark(m_list.GetItemCount()-1);
	m_list.SetRedraw(true);
	m_list.Invalidate();
}

void CUserDlg::OnDeleteuser() 
{
	// TODO: Add your control notification handler code her
	int i=0;
	if(user[user_id].u_uid==1)
	{
		i = m_list.GetSelectionMark();
		for(; i>0 && (i<PWDNUM) && (pwd[i].p_uid != 0); ++i)
		{
			pwd[i].p_gid = pwd[i+1].p_gid;
			pwd[i].p_uid = pwd[i+1].p_uid;
			strcpy(pwd[i].username,pwd[i+1].username);
			strcpy(pwd[i].password,pwd[i+1].password);
		}
	}
	else{
		MessageBox("只有管理员才有此权限","系统提示");
	}
	ReFrushlist();
}

void CUserDlg::OnNewUser() 
{
	// TODO: Add your control notification handler code here
	int i=0;
	if(user[user_id].u_uid==1)
	{
		for(i=0; (i<PWDNUM) && (pwd[i].p_uid != 0); ++i)
			;
		if(i<PWDNUM)
		{
			CNewUserDlg dlg;
			dlg.DoModal();
			ReFrushlist();
		}
	}
	else{
		MessageBox("只有管理员才有此权限","系统提示");
	}
}