filesysdlg.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

// FileSysDlg.cpp : implementation file
//

#include "stdafx.h"
#include "FileSys.h"
#include "FileSysDlg.h"
#include "AboutUs.h"
#include "LoginDlg1.h"
#include "filsys.h"

#include "SysLoginDlg.h"
#include "MkdirDlg.h"
#include "RenameDlg.h"
#include "CreatefileDlg.h"
#include "UserDlg.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)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()


/////////////////////////////////////////////////////////////////////////////
// CFileSysDlg dialog

void CFileSysDlg::OnAboat() 
{
	// TODO: Add your command handler code here
	CAboutDlg usdlg;
	usdlg.DoModal();
	
}

void CFileSysDlg::OnAboutUs() 
{
	// TODO: Add your command handler code here
	CAboutUs usdlg;
	usdlg.DoModal();
	
}



CFileSysDlg::CFileSysDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CFileSysDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CFileSysDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

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

BEGIN_MESSAGE_MAP(CFileSysDlg, CDialog)
	//{{AFX_MSG_MAP(CFileSysDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_COMMAND(M_ABOAT, OnAboat)
	ON_COMMAND(M_ABOUT_US, OnAboutUs)
	ON_NOTIFY(NM_DBLCLK, IDC_LIST1, OnDblclkList)
	ON_COMMAND(M_QUIT, OnQuit)
	ON_WM_DESTROY()
	ON_COMMAND(M_LOGIN, OnLogin)
	ON_COMMAND(M_FORMAT, OnFormat)
	ON_COMMAND(M_LOGOUT, OnLogout)
	ON_COMMAND(M_ADDDERECT, OnAddDerect)
	ON_COMMAND(M_RENAMEDERECT, OnRename)
	ON_COMMAND(M_NEWFILE, OnCreatefile)
	ON_COMMAND(M_RENAMEFILE, OnRenamefile)
	ON_COMMAND(M_DELETEFILE, OnDeletefile)
	ON_COMMAND(M_OPENFILE_READ, OnOpenfileRead)
	ON_COMMAND(M_OPENFILE_WRITE, OnOpenfileWrite)
	ON_COMMAND(M_OPENFILE_APPEND, OnOpenfileAppend)
	ON_COMMAND(M_CHDIR, OnChdir)
	ON_COMMAND(M_USERLIST, OnUserlist)
	ON_COMMAND(M_DELETEDERECT, OnDeletedir)
	ON_COMMAND(M_CHDIR_FATHER, OnChdirFather)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CFileSysDlg message handlers

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

	// 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
	//加入菜单
	CMenu*   pMenu   =   new   CMenu;   
	pMenu->LoadMenu(IDR_MENU1);       //菜单的ID   
	SetMenu(pMenu);  


	//设置为报表形式
	DWORD dwStyle=GetWindowLong(m_dirlist.m_hWnd,GWL_STYLE);
    SetWindowLong(m_dirlist.m_hWnd,GWL_STYLE,dwStyle|LVS_REPORT);
    
	//设置为网格条纹和可以整行选择
	DWORD styles=m_dirlist.GetExtendedStyle();
    m_dirlist.SetExtendedStyle(styles | LVS_EX_FULLROWSELECT | LVS_EX_GRIDLINES); //给LIST添加网格
	
	//获得list的宽度
	CRect rect;
	m_dirlist.GetWindowRect(&rect);
	//添加项
	m_dirlist.InsertColumn(0,"名 称",LVCFMT_LEFT,rect.Width()/4);  
	m_dirlist.InsertColumn(1,"类 型",LVCFMT_LEFT,rect.Width()/4);
	m_dirlist.InsertColumn(2,"大 小",LVCFMT_LEFT,rect.Width()/4);
    m_dirlist.InsertColumn(3,"创建用户",LVCFMT_LEFT,rect.Width()/4);

	RefrushDirList();
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CFileSysDlg::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 CFileSysDlg::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();
	}

	CString str;
	str.Format("登陆用户：%s",pwd[user[user_id].u_uid-1].username);
	((CStatic*)GetDlgItem(IDC_STATIC_USER))->SetWindowText(str);
}

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

//双击列表，打开文件或是进入目录。
void CFileSysDlg::OnDblclkList(NMHDR* pNMHDR, LRESULT* pResult) 
{
	// TODO: Add your control notification handler code here
	int i = m_dirlist.GetSelectionMark();
	if(i==0 || m_dirlist.GetItemText(i,1)=="目录")
	{
		OnChdir();
	}
	else if(i!=1)
	{
		MessageBox("打开文件请选择菜单操作！","系统提示");
	}
	
	*pResult = 0;
}

void CFileSysDlg::RefrushDirList()
{
	m_dirlist.DeleteAllItems();
	m_dirlist.SetRedraw(false);
	CString str;

	unsigned __int16  i;
	struct inode *temp_inode;
	int fcount = 0;

	for(i = 0; i < dir.size; i++)
	{

		m_dirlist.InsertItem(LVIF_TEXT | LVIF_STATE,i,"item 1",LVIS_SELECTED,LVIS_SELECTED,0,0);
		m_dirlist.SetItemText(i,0,dir.direct[i].d_name);
		
		temp_inode = iget(dir.direct[i].d_ino);
		if(i==0){
			m_dirlist.SetItemText(i,1,"父目录");
			str.Format("%d",temp_inode->di_size/16);
			m_dirlist.SetItemText(i,2,str);
		}
		else if(i==1)
		{
			m_dirlist.SetItemText(i,1,"当前目录");
			str.Format("%d",dir.size);
			m_dirlist.SetItemText(i,2,str);
		}
		else{
			if(temp_inode->di_mode & DIMODE_DIR){
				m_dirlist.SetItemText(i,1,"目录");
				str.Format("%d",temp_inode->di_size/16);
				m_dirlist.SetItemText(i,2,str);
				
			}
			else{
				fcount++;
				m_dirlist.SetItemText(i,1,"文件");
				str.Format("%d",temp_inode->di_size);
				m_dirlist.SetItemText(i,2,str);
			}
			
		}
		m_dirlist.SetItemText(i,3,pwd[temp_inode->di_uid-1].username);
		iput(temp_inode);
	}//end_for

	m_dirlist.SetSelectionMark(m_dirlist.GetItemCount()-1);
	m_dirlist.SetRedraw(true);
	m_dirlist.Invalidate();

	str.Format("当前目录下文件数：%d   目录数：%d",fcount,dir.size-fcount);
	((CStatic*)GetDlgItem(IDC_STATIC_DIR))->SetWindowText(str);

}

//退出系统
void CFileSysDlg::OnQuit() 
{
	// TODO: Add your command handler code here
	PostMessage(WM_CLOSE);
}

//退出
void CFileSysDlg::OnDestroy() 
{
	CDialog::OnDestroy();
	// TODO: Add your message handler code here
	halt();
}

//登录
void CFileSysDlg::OnLogin() 
{
	// TODO: Add your command handler code here
	CSysLoginDlg ldlg;
	if(ldlg.DoModal()==IDOK){
		user_count = 1;
		CString str;
		str.Format("登陆用户：%s",pwd[user[user_id].u_uid-1].username);
		((CStatic*)GetDlgItem(IDC_STATIC_USER))->SetWindowText(str);
	}
	else{
		PostMessage(WM_CLOSE);
	}
}

//格式化
void CFileSysDlg::OnFormat() 
{
	// TODO: Add your command handler code here
	CLoginDlg logdlg;
	if(logdlg.DoModal()!=IDOK){
		PostMessage(WM_CLOSE);
	}

	RefrushDirList();
}

//退出
void CFileSysDlg::OnLogout() 
{
	// TODO: Add your command handler code here
	if(user_id>=0)
	{
		logout(user_id);
		user_count = 0;
		OnLogin();
	}
}

//添加目录
void CFileSysDlg::OnAddDerect() 
{
	// TODO: Add your command handler code here
	CMkdirDlg ldlg;
	if(ldlg.DoModal()==IDOK){
		RefrushDirList();
	}
}

//重命名
void CFileSysDlg::OnRename() 
{
	// TODO: Add your command handler code here
	UpdateData(true);
	if(m_dirlist.GetSelectionMark()>1){
		CRenameDlg dlg(dir.direct[m_dirlist.GetSelectionMark()].d_name);
		if(dlg.DoModal()==IDOK){
			RefrushDirList();
		}
	}
}

//新建文件
void CFileSysDlg::OnCreatefile() 
{
	// TODO: Add your command handler code here
	CCreatefileDlg dlg;

	dlg.DoModal();

	RefrushDirList();

}

//重命名文件
void CFileSysDlg::OnRenamefile() 
{
	// TODO: Add your command handler code here
	OnRename();
}

//删除文件
void CFileSysDlg::OnDeletefile() 
{
	// TODO: Add your command handler code here
	CString str;
	if(m_dirlist.GetSelectionMark()>1){
		str.Format("你要删除文件 %d 确定删除吗？",dir.direct[m_dirlist.GetSelectionMark()].d_name);
		int r = MessageBox(str,"系统提示",MB_OKCANCEL);
		if(r==1){
			_fdelete(dir.direct[m_dirlist.GetSelectionMark()].d_name);
		}
	}
	RefrushDirList();
}

void CFileSysDlg::OnOpenfileRead() 
{
	// TODO: Add your command handler code here
	if(m_dirlist.GetSelectionMark()>1){
		CCreatefileDlg dlg(1,m_dirlist.GetSelectionMark());
		dlg.DoModal();
	}
}

void CFileSysDlg::OnOpenfileWrite() 
{
	// TODO: Add your command handler code here
	if(m_dirlist.GetSelectionMark()>1){
		CCreatefileDlg dlg(2,m_dirlist.GetSelectionMark());
		dlg.DoModal();
	}
}

void CFileSysDlg::OnOpenfileAppend() 
{
	// TODO: Add your command handler code here
	if(m_dirlist.GetSelectionMark()>1){
		CCreatefileDlg dlg(3,m_dirlist.GetSelectionMark());
		dlg.DoModal();
	}
}

void CFileSysDlg::OnChdir() 
{
	// TODO: Add your command handler code here
	
	if(_chdir(dir.direct[m_dirlist.GetSelectionMark()].d_name))
	{
		RefrushDirList();
	}
}

void CFileSysDlg::OnChdirFather() 
{
	// TODO: Add your command handler code here
	if(_chdir(dir.direct[0].d_name))
	{
		RefrushDirList();
	}
}


void CFileSysDlg::OnUserlist() 
{
	// TODO: Add your command handler code here
	CUserDlg dlg;
	dlg.DoModal();
}

void CFileSysDlg::OnDeletedir() 
{
	// TODO: Add your command handler code here
	CString str;
	if(m_dirlist.GetSelectionMark()>1){
		str.Format("你要删除目录 %d ，确定删除吗？",dir.direct[m_dirlist.GetSelectionMark()].d_name);
		int r = MessageBox(str,"系统提示",MB_OKCANCEL);
		if(r==1){
			_rmdir(dir.direct[m_dirlist.GetSelectionMark()].d_name);
		}
	}
	RefrushDirList();
}