// EmpSelDlg.cpp : implementation file
//

#include "stdafx.h"
#include "HrSys.h"
#include "EmpSelDlg.h"
#include "Departments.h"

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

/////////////////////////////////////////////////////////////////////////////
// CEmpSelDlg dialog


CEmpSelDlg::CEmpSelDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CEmpSelDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CEmpSelDlg)
	//}}AFX_DATA_INIT
}


void CEmpSelDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CEmpSelDlg)
	DDX_Control(pDX, IDC_TYPE_COMBO, m_Combo);
	DDX_Control(pDX, IDC_TREE1, m_tree);
	DDX_Control(pDX, IDC_ADODC1, m_Adodc);
	DDX_Control(pDX, IDC_DATALIST1, m_datalist);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CEmpSelDlg, CDialog)
	//{{AFX_MSG_MAP(CEmpSelDlg)
	ON_NOTIFY(NM_CLICK, IDC_TREE1, OnClickTree1)
	ON_CBN_SELCHANGE(IDC_TYPE_COMBO, OnSelchangeTypeCombo)
	ON_NOTIFY(TVN_SELCHANGED, IDC_TREE1, OnSelchangedTree1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CEmpSelDlg message handlers

BOOL CEmpSelDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	//裝入部門信息
	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("部門信息");  //添加根節(jié)點(diǎn)
	//調(diào)用AddtoTree() 函數(shù)，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(jié)點(diǎn)
	//選中根節(jié)點(diǎn)
	m_tree.SelectItem(m_root);

	//設(shè)置員工類型
	m_Combo.SetCurSel(0);

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

void CEmpSelDlg::AddtoTree(HTREEITEM m_node, long 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(duì)象中的部門數(shù)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(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 == atol(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, atol(dep.a_DepId.GetAt(i)));
		}
	}
}

void CEmpSelDlg::Refresh_List()
{
	UpdateData(TRUE);
	// 從選擇的節(jié)點(diǎn)中獲取部門信息
	long lDepId;
	HTREEITEM node;
	node = m_tree.GetSelectedItem();
	lDepId = m_tree.GetItemData(node);
	DepName = m_tree.GetItemText(node); //部門名稱
	// 根據(jù)部門編號(hào)獲取部門中的所有員工
	CString cDepId;
	cDepId.Format("%d", lDepId);
	CString cSource = "SELECT * FROM Employees WHERE DepId=" + cDepId;
	// 設(shè)置員工狀態(tài)條件	
	int iType = m_Combo.GetCurSel();
	CString cType;
	cType.Format("%d", iType);
	if (iType > 0)
		cSource += " AND State=" + cType;
	// 刷新數(shù)據(jù)源，從而更新員工列表	
	m_Adodc.SetRecordSource(cSource);
	m_Adodc.Refresh();
}

void CEmpSelDlg::OnClickTree1(NMHDR* pNMHDR, LRESULT* pResult) 
{
	// TODO: Add your control notification handler code here
	Refresh_List();
	*pResult = 0;
}

void CEmpSelDlg::OnSelchangeTypeCombo() 
{
	// TODO: Add your control notification handler code here
	Refresh_List();	
}

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

void CEmpSelDlg::OnOK() 
{
	// TODO: Add extra validation here
	if (m_datalist.GetText() == "")
	{
		MessageBox("請(qǐng)選擇員工");
		return;
	}
	//設(shè)置EmpId和EmpName變量，在其他模塊中可以通過這兩個(gè)變量獲取選擇的員工信息
	EmpId = atol(m_datalist.GetBoundText());
	EmpName = m_datalist.GetText();

	CDialog::OnOK();
}

BEGIN_EVENTSINK_MAP(CEmpSelDlg, CDialog)
    //{{AFX_EVENTSINK_MAP(CEmpSelDlg)
	//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()