// DepManDlg.cpp : implementation file
//

#include "stdafx.h"
#include "HrSys.h"
#include "DepManDlg.h"
#include "Departments.h"
#include "DepEditDlg.h"
//#include "Users.h"

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

extern CUsers curUser;

/////////////////////////////////////////////////////////////////////////////
// CDepManDlg dialog


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


void CDepManDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDepManDlg)
	DDX_Control(pDX, IDC_TREE1, m_tree);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CDepManDlg, CDialog)
	//{{AFX_MSG_MAP(CDepManDlg)
	ON_NOTIFY(TVN_SELCHANGED, IDC_TREE1, OnSelchangedTree1)
	ON_BN_CLICKED(IDC_ADD_BUTTON, OnAddButton)
	ON_BN_CLICKED(IDC_CLOSE_BUTTON, OnCloseButton)
	ON_BN_CLICKED(IDC_MODI_BUTTON, OnModiButton)
	ON_BN_CLICKED(IDC_DEL_BUTTON, OnDelButton)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDepManDlg message handlers

BOOL CDepManDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	//權(quán)限控制，如果不是系統(tǒng)管理員則添加、修改和刪除按鈕置灰
	if (curUser.UserType.Find("系統(tǒng)管理員") < 0)
	{
		GetDlgItem(IDC_ADD_BUTTON)->EnableWindow(FALSE);
		GetDlgItem(IDC_MODI_BUTTON)->EnableWindow(FALSE);
		GetDlgItem(IDC_DEL_BUTTON)->EnableWindow(FALSE);
	}
	//裝入部門(mén)信息
	dep.Load_dep();
	
	//添加根節(jié)點(diǎn)
	m_treeImageList.Create(16,16,FALSE,1,0);  //創(chuàng)建CImageList控件
	//裝入ICON資源
	HICON hIcon = ::LoadIcon(AfxGetResourceHandle(), MAKEINTRESOURCE(IDI_ICON1));
	m_treeImageList.Add(hIcon);  //將ICON資源添加到CImageList控件中
	//將CImageList控件與Tree控件相關(guān)聯(lián)	
	m_tree.SetImageList(&m_treeImageList, LVSIL_NORMAL);
	m_root = m_tree.InsertItem("部門(mén)信息");  //添加根節(jié)點(diǎn)
	//調(diào)用AddtoTree() 函數(shù)，將所有部門(mén)信息添加到Tree控件中	
	AddtoTree(m_root, 0);
	m_tree.Expand(m_root, TVE_EXPAND); //展開(kāi)根節(jié)點(diǎn)
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CDepManDlg::AddtoTree(HTREEITEM m_node, int UpperId)
{
	//使用遞歸方法將部門(mén)添加到TreeView控件中
	int i;
	HTREEITEM m_child;
	//依次訪(fǎng)問(wèn)dep對(duì)象中的部門(mén)數(shù)組，查找滿(mǎn)足條件的記錄添加到Tree控件中
	for(i=0; i<dep.a_UpperId.GetSize(); i++)
	{
		//@@@@ 打開(kāi)a_UpperId數(shù)組中等于UpperId的元素
		//@@@@ 表明此元素為當(dāng)前根節(jié)點(diǎn)的子節(jié)點(diǎn)，因此將其添加到Tree控件中，新節(jié)點(diǎn)為m_child
		//@@@@ 使用SetItemData()函數(shù)將部門(mén)編號(hào)值也保存在新節(jié)點(diǎn)中
		//@@@@ 以新節(jié)點(diǎn)為根節(jié)點(diǎn)，再次遞歸調(diào)用AddtoTree()函數(shù)，將其子節(jié)點(diǎn)添加到Tree控件中
		if (UpperId == atoi(dep.a_UpperId.GetAt(i)))
		{
			m_child = m_tree.InsertItem(dep.a_DepName.GetAt(i), m_node);
			m_tree.SetItemData(m_child, atol(dep.a_DepId.GetAt(i)));
			AddtoTree(m_child, atoi(dep.a_DepId.GetAt(i)));
		}
	}
}

void CDepManDlg::OnSelchangedTree1(NMHDR* pNMHDR, LRESULT* pResult) 
{
	NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR;
	// TODO: Add your control notification handler code here
	
	*pResult = 0;
}

void CDepManDlg::OnAddButton() 
{
	// TODO: Add your control notification handler code here
	HTREEITEM node;  //用于保存當(dāng)前選擇的節(jié)點(diǎn)
	node = m_tree.GetSelectedItem();  //取得當(dāng)前選擇的節(jié)點(diǎn)
	
	CDepEditDlg dlg;
	//設(shè)置編輯對(duì)話(huà)框中變量的值
	dlg.m_Upper = m_tree.GetItemText(node);
	dlg.UpperId = m_tree.GetItemData(node);
	dlg.DepId = 0;  //表示插入記錄
	//如果在編輯對(duì)話(huà)框中單擊“確定”按鈕，則在TreeView中添加新節(jié)點(diǎn)
	if(dlg.DoModal() == IDOK)
	{
		HTREEITEM child;  //表示插入的新節(jié)點(diǎn)，它是node的子節(jié)點(diǎn)
		child = m_tree.InsertItem(dlg.m_DepName, node);  //插入節(jié)點(diǎn)
		m_tree.SetItemData(child, dlg.DepId);  //設(shè)置新節(jié)點(diǎn)的值
		m_tree.Expand(node, TVE_EXPAND); //展開(kāi)node節(jié)點(diǎn)
	}
}

void CDepManDlg::OnCloseButton() 
{
	// TODO: Add your control notification handler code here
	OnCancel();	
}

void CDepManDlg::OnModiButton() 
{
	// TODO: Add your control notification handler code here
	HTREEITEM node;  //用于保存當(dāng)前節(jié)點(diǎn)
	node = m_tree.GetSelectedItem(); //取得當(dāng)前節(jié)點(diǎn)值
	if (m_tree.GetItemData(node) == 0)  //不能修改根節(jié)點(diǎn)
	{
		MessageBox("不能修改此項(xiàng)");
		return;
	}
	HTREEITEM parent;	//讀取父節(jié)點(diǎn)
	parent = m_tree.GetParentItem(node);

	CDepEditDlg dlg;
	//設(shè)置編輯對(duì)話(huà)框中變量的值
	dlg.m_Upper = m_tree.GetItemText(parent);
	dlg.UpperId = m_tree.GetItemData(parent);
	dlg.DepId = m_tree.GetItemData(node);
	dlg.DepName = m_tree.GetItemText(node);
	dlg.m_DepName = m_tree.GetItemText(node);

	//如果在編輯對(duì)話(huà)框中單擊“確定”按鈕，則在TreeView中修改節(jié)點(diǎn)信息
	if(dlg.DoModal() == IDOK)
	{
		m_tree.SetItemText(node, dlg.m_DepName);  //設(shè)置當(dāng)前節(jié)點(diǎn)的顯示標(biāo)題
		m_tree.Expand(node, TVE_EXPAND);  //展開(kāi)當(dāng)前節(jié)點(diǎn)
	}	
}

void CDepManDlg::OnDelButton() 
{
	// TODO: Add your control notification handler code here
	HTREEITEM node;  //用于保存當(dāng)前節(jié)點(diǎn)
	node = m_tree.GetSelectedItem();  //取得當(dāng)前節(jié)點(diǎn)
	if (m_tree.GetItemData(node) == 0) //不能刪除根節(jié)點(diǎn)
	{
		MessageBox("不能刪除此項(xiàng)");
		return;
	}
	//取得當(dāng)前節(jié)點(diǎn)的值，并轉(zhuǎn)換為CString類(lèi)型
	CString cDepId;
	cDepId.Format("%d", m_tree.GetItemData(node));
	if (dep.HaveSon(cDepId) == 1)
	{
		MessageBox("此部門(mén)包含下級(jí)部門(mén)，不能刪除！");
		return;
	}
	if (dep.HaveEmp(cDepId) == 1)
	{
		MessageBox("此部門(mén)包含員工，不能刪除！");
		return;
	}
	//彈出對(duì)話(huà)框，要求用戶(hù)確認(rèn)是否刪除。如果用戶(hù)單擊“是”按鈕，則刪除
	if (MessageBox("是否刪除當(dāng)前部門(mén)？", "請(qǐng)確認(rèn)", MB_YESNO) == IDYES)
	{
		dep.sql_delete(cDepId);  //刪除表Departments中的指定記錄
		m_tree.DeleteItem(node);  //刪除Tree控件中的當(dāng)前節(jié)點(diǎn)
	}
}