lcdemodlg.cpp

一个有关列表控件的程序

// LCDemoDlg.cpp : implementation file
//

#include "stdafx.h"
#include "LCDemo.h"
#include "LCDemoDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CLCDemoDlg dialog

CLCDemoDlg::CLCDemoDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CLCDemoDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CLCDemoDlg)
		// 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 CLCDemoDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CLCDemoDlg)
	DDX_Control(pDX, IDC_LIST, m_listCtrl);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CLCDemoDlg, CDialog)
	//{{AFX_MSG_MAP(CLCDemoDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON_UP, OnButtonUp)
	ON_NOTIFY(NM_CLICK, IDC_LIST, OnClickList)
	ON_BN_CLICKED(IDC_BUTTON_DOWN, OnButtonDown)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CLCDemoDlg message handlers

BOOL CLCDemoDlg::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
	// 插入列表控件纵列
	m_listCtrl.InsertColumn(0, "Field1", LVCFMT_LEFT, 110);
	m_listCtrl.InsertColumn(1, "Field2", LVCFMT_LEFT, 130);
	m_listCtrl.InsertColumn(2, "Field3", LVCFMT_LEFT, 130);
	// 设置列表控件扩展样式为整行高亮
	m_listCtrl.SetExtendedStyle(LVS_EX_FULLROWSELECT);

	// 往列表控件中添加项目
	int nItem;
	for (int i=0; i<10; i++)
	{
		CString f1, f2, f3;
		// 格式化字符串
		f1.Format("SerialNum: %d", i+1);
		f2.Format("Row %d Column 2", i+1);
		f3.Format("Row %d Column 3", i+1);
		nItem = m_listCtrl.InsertItem(i, _T(f1));  // 插入第一列
		m_listCtrl.SetItemText(nItem, 1, _T(f2));  // 插入第二列
		m_listCtrl.SetItemText(nItem, 2, _T(f3));  // 插入第三列
	}
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CLCDemoDlg::OnClickList(NMHDR* pNMHDR, LRESULT* pResult) 
{
	POSITION pos;
	pos = m_listCtrl.GetFirstSelectedItemPosition();
	IndexInFieldList = m_listCtrl.GetNextSelectedItem(pos);  // 得到项目索引
	
	*pResult = 0;
}

void CLCDemoDlg::OnButtonUp() 
{
	m_listCtrl.SetFocus();
	
	if (IndexInFieldList == -1)
		return;
	
	// 判断所选项是否位于行首
	if (IndexInFieldList == 0)
	{
		AfxMessageBox("已经位于第一行!");
		return;
	}
	
	// 提取所选列表项各列类容
	CString tempField1, tempField2, tempField3;
	tempField1 = m_listCtrl.GetItemText(IndexInFieldList, 0);
	tempField2 = m_listCtrl.GetItemText(IndexInFieldList, 1);
	tempField3 = m_listCtrl.GetItemText(IndexInFieldList, 2);
	
	// 删除所选列表项
	m_listCtrl.DeleteItem(IndexInFieldList);
	
	// 在IndexInFieldList-1位置处插入上面所删列表项的各列类容
	int tempItem;
	tempItem = m_listCtrl.InsertItem(IndexInFieldList-1, _T(tempField1));
	m_listCtrl.SetItemText(tempItem, 1, _T(tempField2));
	m_listCtrl.SetItemText(tempItem, 2, _T(tempField3));
	IndexInFieldList--;
	
	// 使得IndexInFieldList-1位置处项目高亮显示并获得焦点
	UINT flag = LVIS_SELECTED|LVIS_FOCUSED;
	m_listCtrl.SetItemState(IndexInFieldList, flag, flag);
}


void CLCDemoDlg::OnButtonDown() 
{
	m_listCtrl.SetFocus();
	
	if (IndexInFieldList == -1)
		return;
	
	// 判断所选项是否位于行尾
	if (IndexInFieldList == m_listCtrl.GetItemCount()-1)
	{
		AfxMessageBox("已经位于最末行!");
		return;
	}
	
	CString tempField1, tempField2, tempField3;
	tempField1 = m_listCtrl.GetItemText(IndexInFieldList, 0);
	tempField2 = m_listCtrl.GetItemText(IndexInFieldList, 1);
	tempField3 = m_listCtrl.GetItemText(IndexInFieldList, 2);
	
	m_listCtrl.DeleteItem(IndexInFieldList);
	
	// 在IndexInFieldList+1位置处插入上面所删列表项的各列类容
	int tempItem;
	tempItem = m_listCtrl.InsertItem(IndexInFieldList+1, _T(tempField1));
	m_listCtrl.SetItemText(tempItem, 1, _T(tempField2));
	m_listCtrl.SetItemText(tempItem, 2, _T(tempField3));
	IndexInFieldList++;
	
	// 使得IndexInFieldList+1位置处项目高亮显示并获得焦点
	UINT flag = LVIS_SELECTED|LVIS_FOCUSED;
	m_listCtrl.SetItemState(IndexInFieldList, flag, flag);
}