// 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
	//權限控制，如果不是系統管理員則添加、修改和刪除按鈕置灰
	if (curUser.UserType.Find("系統管理員") < 0)
	{
		GetDlgItem(IDC_ADD_BUTTON)->EnableWindow(FALSE);
		GetDlgItem(IDC_MODI_BUTTON)->EnableWindow(FALSE);
		GetDlgItem(IDC_DEL_BUTTON)->EnableWindow(FALSE);
	}
	//裝入部門信息
	dep.Load_dep();
	
	//添加根節點
	m_treeImageList.Create(16,16,FALSE,1,0);  //創建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控件相關聯	
	m_tree.SetImageList(&m_treeImageList, LVSIL_NORMAL);
	m_root = m_tree.InsertItem("部門信息");  //添加根節點
	//調用AddtoTree() 函數，將所有部門信息添加到Tree控件中	
	AddtoTree(m_root, 0);
	m_tree.Expand(m_root, TVE_EXPAND); //展開根節點
	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添加到TreeView控件中
	int i;
	HTREEITEM m_child;
	//依次訪問dep對象中的部門數組，查找滿足條件的記錄添加到Tree控件中
	for(i=0; i<dep.a_UpperId.GetSize(); i++)
	{
		//@@@@ 打開a_UpperId數組中等于UpperId的元素
		//@@@@ 表明此元素為當前根節點的子節點，因此將其添加到Tree控件中，新節點為m_child
		//@@@@ 使用SetItemData()函數將部門編號值也保存在新節點中
		//@@@@ 以新節點為根節點，再次遞歸調用AddtoTree()函數，將其子節點添加到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;  //用于保存當前選擇的節點
	node = m_tree.GetSelectedItem();  //取得當前選擇的節點
	
	CDepEditDlg dlg;
	//設置編輯對話框中變量的值
	dlg.m_Upper = m_tree.GetItemText(node);
	dlg.UpperId = m_tree.GetItemData(node);
	dlg.DepId = 0;  //表示插入記錄
	//如果在編輯對話框中單擊“確定”按鈕，則在TreeView中添加新節點
	if(dlg.DoModal() == IDOK)
	{
		HTREEITEM child;  //表示插入的新節點，它是node的子節點
		child = m_tree.InsertItem(dlg.m_DepName, node);  //插入節點
		m_tree.SetItemData(child, dlg.DepId);  //設置新節點的值
		m_tree.Expand(node, TVE_EXPAND); //展開node節點
	}
}

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;  //用于保存當前節點
	node = m_tree.GetSelectedItem(); //取得當前節點值
	if (m_tree.GetItemData(node) == 0)  //不能修改根節點
	{
		MessageBox("不能修改此項");
		return;
	}
	HTREEITEM parent;	//讀取父節點
	parent = m_tree.GetParentItem(node);

	CDepEditDlg dlg;
	//設置編輯對話框中變量的值
	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);

	//如果在編輯對話框中單擊“確定”按鈕，則在TreeView中修改節點信息
	if(dlg.DoModal() == IDOK)
	{
		m_tree.SetItemText(node, dlg.m_DepName);  //設置當前節點的顯示標題
		m_tree.Expand(node, TVE_EXPAND);  //展開當前節點
	}	
}

void CDepManDlg::OnDelButton() 
{
	// TODO: Add your control notification handler code here
	HTREEITEM node;  //用于保存當前節點
	node = m_tree.GetSelectedItem();  //取得當前節點
	if (m_tree.GetItemData(node) == 0) //不能刪除根節點
	{
		MessageBox("不能刪除此項");
		return;
	}
	//取得當前節點的值，并轉換為CString類型
	CString cDepId;
	cDepId.Format("%d", m_tree.GetItemData(node));
	if (dep.HaveSon(cDepId) == 1)
	{
		MessageBox("此部門包含下級部門，不能刪除！");
		return;
	}
	if (dep.HaveEmp(cDepId) == 1)
	{
		MessageBox("此部門包含員工，不能刪除！");
		return;
	}
	//彈出對話框，要求用戶確認是否刪除。如果用戶單擊“是”按鈕，則刪除
	if (MessageBox("是否刪除當前部門？", "請確認", MB_YESNO) == IDYES)
	{
		dep.sql_delete(cDepId);  //刪除表Departments中的指定記錄
		m_tree.DeleteItem(node);  //刪除Tree控件中的當前節點
	}
}