ex_listdlg.cpp

郑阿奇主编< Visual C++教程> 配套的实验书的全部代码

// Ex_ListDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Ex_List.h"
#include "Ex_ListDlg.h"

#include "ScoreDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CEx_ListDlg dialog

CEx_ListDlg::CEx_ListDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CEx_ListDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CEx_ListDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CEx_ListDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CEx_ListDlg)
	DDX_Control(pDX, IDC_LIST1, m_ListCtrl);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CEx_ListDlg, CDialog)
	//{{AFX_MSG_MAP(CEx_ListDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_SCORE, OnButtonScore)
	ON_BN_CLICKED(IDC_BUTTON_CHANGE, OnButtonChange)
	ON_NOTIFY(LVN_ITEMCHANGED, IDC_LIST1, OnItemchangedList1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CEx_ListDlg message handlers

BOOL CEx_ListDlg::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
	// 创建列表控件的标题头
	CString strHeader[4]={ "学号", "课程", "成绩", "学分"};
	for (int nCol=0; nCol<4; nCol++)
		m_ListCtrl.InsertColumn(nCol,strHeader[nCol],LVCFMT_LEFT,80);
	GetDlgItem( IDC_BUTTON_CHANGE )->EnableWindow(FALSE);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CEx_ListDlg::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 CEx_ListDlg::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 CEx_ListDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CEx_ListDlg::OnButtonScore() 
{
	// TODO: Add your control notification handler code here
	CScoreDlg dlg;
	if (IDOK != dlg.DoModal()) return;
	int nItem = m_ListCtrl.GetItemCount();
	m_ListCtrl.InsertItem( nItem, dlg.m_strStuNo );
	m_ListCtrl.SetItemText( nItem, 1, dlg.m_strCourseNo );
	CString str;
	str.Format("%4.1f", dlg.m_fScore );
	m_ListCtrl.SetItemText( nItem, 2, str );
	str.Format("%3.1f", dlg.m_fCredit );
	m_ListCtrl.SetItemText( nItem, 3, str );	
}

void CEx_ListDlg::OnButtonChange() 
{
	// 获取被选择的列表项索引号
	POSITION pos;
	pos = m_ListCtrl.GetFirstSelectedItemPosition();
	if (pos == NULL)
	{
		MessageBox("你还没有选中列表项！");
		return;
	}
	int nItem = m_ListCtrl.GetNextSelectedItem( pos );
	CScoreDlg dlg;
	dlg.m_strOKText = "修改";
	dlg.m_strStuNo = m_ListCtrl.GetItemText( nItem, 0 );
	dlg.m_strCourseNo = m_ListCtrl.GetItemText( nItem, 1 );
	CString str = m_ListCtrl.GetItemText( nItem, 2 );
	dlg.m_fScore = (float)atof( str );
	str = m_ListCtrl.GetItemText( nItem, 3 );
	dlg.m_fCredit = (float)atof( str );

	if (IDOK != dlg.DoModal()) return;

	m_ListCtrl.SetItemText( nItem, 0, dlg.m_strStuNo );
	m_ListCtrl.SetItemText( nItem, 1, dlg.m_strCourseNo );
	str.Format("%4.1f", dlg.m_fScore );
	m_ListCtrl.SetItemText( nItem, 2, str );
	str.Format("%3.1f", dlg.m_fCredit );
	m_ListCtrl.SetItemText( nItem, 3, str );	
}

void CEx_ListDlg::OnItemchangedList1(NMHDR* pNMHDR, LRESULT* pResult) 
{
	NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;
	// TODO: Add your control notification handler code here
	GetDlgItem( IDC_BUTTON_CHANGE )->EnableWindow(TRUE);
	
	*pResult = 0;
}