// DepSelDlg.cpp : implementation file
//

#include "stdafx.h"
#include "HrSys.h"
#include "DepSelDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CDepSelDlg dialog


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


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

void CDepSelDlg::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)));
		}
	}
}


BEGIN_MESSAGE_MAP(CDepSelDlg, CDialog)
	//{{AFX_MSG_MAP(CDepSelDlg)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDepSelDlg message handlers

BOOL CDepSelDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	//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 CDepSelDlg::OnOK() 
{
	// TODO: Add extra validation 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("請選擇部門");
		return;
	}
	//將當前選擇的部門信息保存在公共變量中
	DepId = m_tree.GetItemData(node);
	DepName = m_tree.GetItemText(node);

	CDialog::OnOK();
}

void CDepSelDlg::OnCancel() 
{
	// TODO: Add extra cleanup here
	DepId = 0;
	DepName = "";

	CDialog::OnCancel();
}