doulistdlg.cpp

来自「双向连表的演示程序 1、创建连表 2、在头部增加节点 3、在尾部增加节点 」· C++ 代码 · 共 239 行

// DouListDlg.cpp : implementation file
//

#include "stdafx.h"
#include "DouList.h"
#include "DouListDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDouListDlg dialog

CDouListDlg::CDouListDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDouListDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDouListDlg)
	m_strName = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CDouListDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDouListDlg)
	DDX_Text(pDX, IDC_STU_EDIT, m_strName);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CDouListDlg, CDialog)
	//{{AFX_MSG_MAP(CDouListDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_ADD_INFO, OnAddInfo)
	ON_BN_CLICKED(IDC_ADD_HEAD_NODE, OnAddHeadNode)
	ON_BN_CLICKED(IDC_ADD_TAIL_NODE, OnAddTailNode)
	ON_BN_CLICKED(IDC_NEXT_STU_INFO, OnNextStuInfo)
	ON_BN_CLICKED(IDC_PRE_STU_INFO, OnPreStuInfo)
	ON_BN_CLICKED(IDC_INSERT_BTN, OnInsertBtn)
	ON_BN_CLICKED(IDC_DEL_NODE, OnDelNode)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDouListDlg message handlers

BOOL CDouListDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CDouListDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CDouListDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CDouListDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}


void CDouListDlg::OnAddInfo() 
{
  	if(m_StuList.m_pFirstNode == NULL)
	{
		m_StuList.CreateDList(GenNode());
	}
}

CStu* CDouListDlg::GenNode()
{
	UpdateData(TRUE);
	CStu* 	pNode = new CStu();
	pNode->m_strName = m_strName;
	pNode->m_pNext = NULL;
	pNode->m_pPre = NULL;
	return pNode;
}

void CDouListDlg::OnAddHeadNode() 
{
   UpdateData(TRUE);
   m_StuList.AddHeadNode( GenNode());
}

void CDouListDlg::OnAddTailNode() 
{
  	  UpdateData(TRUE);
       m_StuList.AddTailNode( GenNode());
}
//trans the double list
void CDouListDlg::OnNextStuInfo() 
{
	CStu* Temp = m_StuList.GetNextNode();
	if(Temp!=NULL)
   	   m_strName = Temp->m_strName;
	UpdateData(FALSE);
}
//

void CDouListDlg::OnPreStuInfo() 
{ 
	CStu* Temp = m_StuList.GetPreNode();
   if(Temp != NULL)
   	   m_strName = Temp->m_strName;
	UpdateData(FALSE);	
}

void CDouListDlg::OnInsertBtn() 
{
   UpdateData(TRUE);
   m_StuList.InsertNode(GenNode());
}

void CDouListDlg::OnDelNode() 
{
  m_strName = "";
  m_StuList.DelCurNode();
  UpdateData(FALSE);
}