userview.cpp

用CJ60Lib界面库制作的SQL数据库客户与服务器程序。

// UserView.cpp : implementation file
//

#include "stdafx.h"
#include "miniSQL.h"
#include "UserView.h"
#include "UserDoc.h"
#include "Error.h"
#include "AddUserDlg.h"
#include "ViewDlg.h"

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

extern CMiniSQLApp theApp;

/////////////////////////////////////////////////////////////////////////////
// CUserView

IMPLEMENT_DYNCREATE(CUserView, CListView)

CUserView::CUserView()
{
	ItemIndex = 0;
}

CUserView::~CUserView()
{
}


BEGIN_MESSAGE_MAP(CUserView, CListView)
	//{{AFX_MSG_MAP(CUserView)
	ON_WM_RBUTTONDOWN()
	ON_COMMAND(ID_ADD_USER, OnAddUser)
	ON_COMMAND(ID_DEL_USER, OnDelUser)
	ON_WM_LBUTTONDBLCLK()
	ON_COMMAND(ID_USER_VIEW, OnUserView)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CUserView drawing

void CUserView::OnDraw(CDC* pDC)
{
	CDocument* pDoc = GetDocument();
	// TODO: add draw code here
}

/////////////////////////////////////////////////////////////////////////////
// CUserView diagnostics

#ifdef _DEBUG
void CUserView::AssertValid() const
{
	CListView::AssertValid();
}

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

/////////////////////////////////////////////////////////////////////////////
// CUserView message handlers

void CUserView::OnInitialUpdate() 
{
	CListView::OnInitialUpdate();
	
	CListCtrl&	theCtrl = GetListCtrl();
	CUserDoc*	pDoc = ( CUserDoc* )GetDocument();
	LV_COLUMN	LVColumn;

	DWORD dwStyle = ListView_GetExtendedListViewStyle( GetListCtrl() );
	dwStyle |= LVS_EX_FULLROWSELECT | LVS_EX_GRIDLINES
			| LVS_EX_HEADERDRAGDROP | LVS_EX_TRACKSELECT;
	ListView_SetExtendedListViewStyle (GetListCtrl(),dwStyle);

	theCtrl.DeleteAllItems();

	CString _COL_LABLE[] = 
	{
		_T("用户名"),
		_T("授权类型"),
		_T("用户描述")
	};

	int		_COL_LEN[] = 
	{
		100, 100, 400
	};

	LVColumn.mask = LVCF_FMT | LVCF_WIDTH | LVCF_TEXT | LVCF_SUBITEM;
	for ( int column = 0; column < 3; column ++ ){
		LVColumn.fmt = LVCFMT_LEFT;
		LVColumn.cx = _COL_LEN[ column ];
		LVColumn.pszText = (LPTSTR)(LPCTSTR) _COL_LABLE[ column ];
		LVColumn.iSubItem = column;
		theCtrl.InsertColumn( column, &LVColumn );
	}

	int i;
	i = theCtrl.InsertItem( LVIF_TEXT | LVIF_PARAM, ItemIndex++, "admin", 0, 0, 0, 0);
	theCtrl.SetItem( i, 1, LVIF_TEXT, "Administrator", 0, 0, 0, 0);
	theCtrl.SetItem( i, 2, LVIF_TEXT, 
		"The default Administrator profile.", 0, 0, 0, 0);

	i = theCtrl.InsertItem( LVIF_TEXT | LVIF_PARAM, ItemIndex++, "superuser", 0, 0, 0, 0);
	theCtrl.SetItem( i, 1, LVIF_TEXT, "Super User", 0, 0, 0, 0);
	theCtrl.SetItem( i, 2, LVIF_TEXT, 
		"The default Super User profile.", 0, 0, 0, 0);

	i = theCtrl.InsertItem( LVIF_TEXT | LVIF_PARAM, ItemIndex++, "user", 0, 0, 0, 0);
	theCtrl.SetItem( i, 1, LVIF_TEXT, "User", 0, 0, 0, 0);
	theCtrl.SetItem( i, 2, LVIF_TEXT, 
		"The default User profile.", 0, 0, 0, 0);

	for( int j = 0; j < pDoc->m_UserList.GetCount(); j++ )
	{
		CUser user = pDoc->m_UserList.GetAt( pDoc->m_UserList.FindIndex( j ) );
		i = theCtrl.InsertItem( LVIF_TEXT | LVIF_PARAM, ItemIndex++, user.m_user, 0, 0, 0, 0);
		theCtrl.SetItem( i, 1, LVIF_TEXT, GetProfile( user ), 0, 0, 0, 0);
		theCtrl.SetItem( i, 2, LVIF_TEXT, user.m_descrip, 0, 0, 0, 0);
	}
}

BOOL CUserView::PreCreateWindow(CREATESTRUCT& cs) 
{
	cs.style |= LVS_REPORT | LVS_SINGLESEL | LVS_SHOWSELALWAYS;

	return CListView::PreCreateWindow( cs );
}

CString CUserView::GetProfile( CUser& user )
{
	switch( user.m_type )
	{
	case LOG_ADMIN:
		return _T("Adminitrator");
	case LOG_SUPERUSER:
		return _T("Super User");
	case LOG_USER:
		return _T("User");
	default:
		throw Error( ERROR_PROFILE, 0, _T("") );
	}
}

void CUserView::OnRButtonDown(UINT nFlags, CPoint point) 
{
	CMenu Menu;
	Menu.LoadMenu( IDR_USER );
	CMenu* SubMenu = Menu.GetSubMenu( 0 );

	CPoint pt = point;
	ClientToScreen( &pt );
	SubMenu->TrackPopupMenu( TPM_LEFTALIGN | TPM_RIGHTBUTTON,
				pt.x, pt.y, this );
	
	// fucking line
//	CListView::OnRButtonDown(nFlags, point);
}

void CUserView::OnAddUser() 
{
	CAddUserDlg dlg;

	if( dlg.DoModal() == IDOK )
	{
		if( dlg.m_code != dlg.m_recode )
		{
			AfxMessageBox("两处密码不相符，请重输!");
			OnAddUser();
			return;
		}
		if( !dlg.m_code.GetLength() || !dlg.m_name.GetLength() )
		{
			AfxMessageBox("用户名或密码不能为空，请重输!");
			OnAddUser();
			return;
		}
		if( dlg.m_name == _T("admin") ||
			dlg.m_name == _T("superuser") ||
			dlg.m_name == _T("user") )
		{
			AfxMessageBox("用户名已存在，请重输!");
			OnAddUser();
			return;
		}

		CUserDoc* pDoc = ( CUserDoc* )GetDocument();
		for( int i = 0; i < pDoc->m_UserList.GetCount(); i++ )
		{
			CUser user = pDoc->m_UserList.GetAt( pDoc->m_UserList.FindIndex( i ) );
			if( dlg.m_name == user.m_user )
			{
				AfxMessageBox("用户名已存在，请重输!");
				OnAddUser();
				return;
			}
		}

		CUser user( dlg.m_name, dlg.m_code, 
			GetProfile( dlg.m_type ), dlg.m_descrip );
		pDoc->m_UserList.AddTail( user );
		InsertItem( user );
		pDoc->OnSaveDocument( pDoc->GetPathName() );
	}
}

DWORD CUserView::GetProfile( int type )
{
	switch( type )
	{
	case 0:
		return LOG_ADMIN;
	case 1:
		return LOG_SUPERUSER;
	case 2:
		return LOG_USER;
	default:
		throw Error();
	}
}

void CUserView::InsertItem( CUser& user )
{
	CListCtrl& theCtrl = GetListCtrl();

	int i = theCtrl.InsertItem( LVIF_TEXT | LVIF_PARAM, ItemIndex++, user.m_user, 0, 0, 0, 0);
	theCtrl.SetItem( i, 1, LVIF_TEXT, GetProfile( user ), 0, 0, 0, 0);
	theCtrl.SetItem( i, 2, LVIF_TEXT, user.m_descrip, 0, 0, 0, 0);
}

void CUserView::OnDelUser() 
{
	CListCtrl& theCtrl = GetListCtrl();

	int index = theCtrl.GetNextItem( -1, LVNI_SELECTED );
	if( index == -1 )
	{
		AfxMessageBox( "请选择要删除的帐户!" );
		return ;
	}
	if( index >=0 && index <= 2 )
	{
		AfxMessageBox( "这是默认帐户，无法删除!" );
		return ;
	}

	CString name = theCtrl.GetItemText( index, 0 );
	if( name == theApp.m_LogName )
	{
		if( AfxMessageBox( "这是当前用户的帐户，\n删除将无法撤销且要求重新登陆!",
				MB_YESNO | MB_ICONQUESTION ) == IDYES )
		{
			DelDocItem( name );
			theCtrl.DeleteItem( index );
			theApp.Logon();
		}
	}
	else
	{
		if( AfxMessageBox( "真的要删除" + name + "的帐户吗?\n这将无法撤销!",
			MB_YESNO | MB_ICONQUESTION ) == IDYES )
		{
			DelDocItem( name );
			theCtrl.DeleteItem( index );
		}
	}
}

void CUserView::DelDocItem( CString& name )
{
	CUserDoc* pDoc = ( CUserDoc* )GetDocument();
	POSITION pos = pDoc->m_UserList.GetHeadPosition();

	while( pos )
	{
		POSITION old = pos;
		CUser user = pDoc->m_UserList.GetNext( pos );
		if( user.m_user == name )
		{
			pDoc->m_UserList.RemoveAt( old );
			pDoc->OnSaveDocument( pDoc->GetPathName() );
			break;
		}
	}
}

void CUserView::OnLButtonDblClk(UINT nFlags, CPoint point) 
{
	OnUserView();

	CListView::OnLButtonDblClk(nFlags, point);
}

int CUserView::GetProfile( DWORD d )
{
	switch( d )
	{
	case LOG_ADMIN:
		return 0;
	case LOG_SUPERUSER:
		return 1;
	case LOG_USER:
		return 2;
	default:
		throw Error();
	}
}

void CUserView::OnUserView() 
{
	CListCtrl&	theCtrl = GetListCtrl();
	CUserDoc*	pDoc = (CUserDoc* )GetDocument();

	int index = theCtrl.GetNextItem( -1, LVNI_SELECTED );
	if( index == -1 )
		return ;
	if( index >=0 && index <= 2 )
	{
		AfxMessageBox( "这是默认帐户，无法查看、更新!" );
		return ;
	}
	CString name = theCtrl.GetItemText( index, 0 );
	CUser* user;
	POSITION pos = pDoc->m_UserList.GetHeadPosition();
	while( pos )
	{
		user = &pDoc->m_UserList.GetNext( pos );
		if( user->m_user == name )
			break;
	}

	CViewDlg	dlg;
	dlg.m_name = user->m_user;
	dlg.m_type = GetProfile( user->m_type );
	dlg.m_descrip = user->m_descrip;

	if( dlg.DoModal() == IDOK )
	{
		if( user->m_user == theApp.m_LogName &&
			dlg.m_type != GetProfile( user->m_type ) )
		{
			if( AfxMessageBox( "这是当前用户的帐户，\n更改授权类型要求重新登陆!",
				MB_YESNO | MB_ICONQUESTION ) == IDYES )
			{
				user->m_type = GetProfile( dlg.m_type );
				user->m_descrip = dlg.m_descrip;
				pDoc->OnSaveDocument( pDoc->GetPathName() );
				theApp.Logon();
			}
			else
				return;
		}
		else
		{
			user->m_type = GetProfile( dlg.m_type );
			user->m_descrip = dlg.m_descrip;
			pDoc->OnSaveDocument( pDoc->GetPathName() );
			theCtrl.SetItemText( index, 1, GetProfile( *user ) );
			theCtrl.SetItemText( index, 2, dlg.m_descrip );
		}
	}
}