rfidlg.cpp

一个使用MFC和SQL的例子

// RfiDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Rfi.h"

#include "AddRepeatersDlg.h"
#include "DeleteRepeatersDlg.h"
#include "EditRepeaterDlg.h"
#include "Splash1.h"

#include "RfiDlg.h"

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

#define WM_TRAYNOTIFY WM_USER + 100

/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CRfiDlg dialog

CRfiDlg::CRfiDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CRfiDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CRfiDlg)
		// 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 CRfiDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CRfiDlg)
	DDX_Control(pDX, IDC_REPEATER_LIST, m_lcRepeaterList);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CRfiDlg, CDialog)
	//{{AFX_MSG_MAP(CRfiDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_ADD_REPEATERS, OnAddRepeaters)
	ON_BN_CLICKED(IDC_DELETE_REPEATERS, OnDeleteRepeaters)
	ON_NOTIFY(NM_DBLCLK, IDC_REPEATER_LIST, OnDblclkRepeaterList)
	ON_NOTIFY(LVN_COLUMNCLICK, IDC_REPEATER_LIST, OnColumnclickRepeaterList)
	ON_BN_CLICKED(IDC_EXECUTE_QUERY, OnExecuteQuery)
	ON_BN_CLICKED(IDC_CLEAR_QUERY, OnClearQuery)
	ON_BN_CLICKED(IDC_EDIT_REPEATER, OnEditRepeater)
	ON_WM_CREATE()
	ON_COMMAND(IDC_SHOWMAIN, OnShowmain)
	ON_COMMAND(IDC_HIDEMAIN, OnHidemain)
	//}}AFX_MSG_MAP
	ON_MESSAGE ( WM_TRAYNOTIFY, OnTrayNotify ) // tray icon notification
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CRfiDlg message handlers

BOOL CRfiDlg::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);
	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

	// set up main list box image list
	m_lgImageList . Create ( 32, 32, FALSE, 2, 0 );
	m_smImageList . Create ( 16, 16, FALSE, 2, 0 );
	m_lgImageList . Add ( ::LoadIcon ( AfxGetInstanceHandle (), MAKEINTRESOURCE ( IDI_REPEATER ) ) );
	m_smImageList . Add ( ::LoadIcon ( AfxGetInstanceHandle (), MAKEINTRESOURCE ( IDI_REPEATER ) ) );
	m_lcRepeaterList . SetImageList ( &m_lgImageList, LVSIL_NORMAL );
	m_lcRepeaterList . SetImageList ( &m_smImageList, LVSIL_SMALL );
	
	// set up main list box columns
	m_lcRepeaterList . InsertColumn ( 0, "ID", LVCFMT_CENTER, 60 );
	m_lcRepeaterList . InsertColumn ( 1, "Frequency", LVCFMT_LEFT, 65 );
	m_lcRepeaterList . InsertColumn ( 2, "Callsign", LVCFMT_LEFT, 65 );
	m_lcRepeaterList . InsertColumn ( 3, "Input", LVCFMT_LEFT, 55 );
	m_lcRepeaterList . InsertColumn ( 4, "City", LVCFMT_LEFT, 145 );
	m_lcRepeaterList . InsertColumn ( 5, "State", LVCFMT_LEFT, 100 );

	// show the splash screen
	CSplashWnd::ShowSplashScreen ( this );

	// load the database contents into the list control
	LoadList ();

	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CRfiDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else if ( nID == SC_MINIMIZE )
	{
		OnHidemain (); // get into tray and don't leave task bar button
	}
	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 CRfiDlg::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 CRfiDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

// adding entries to database
void CRfiDlg::OnAddRepeaters() 
{
	CAddRepeatersDlg dlgAddRepeaters;

	// show "add" dialog
	dlgAddRepeaters . DoModal ();
	
	// find out if "add" dialog did any database updates
	if ( dlgAddRepeaters . RecordsWereAdded () )
		LoadList (); // if so, re-load list control from new database contents

	return;
}

// deleting entries from database
void CRfiDlg::OnDeleteRepeaters() 
{
	CDeleteRepeatersDlg dlgDeleteRepeaters;

	// show "delete" dialog
	dlgDeleteRepeaters . DoModal ();

	// find out if "delete" dialog did any database updates
	if ( dlgDeleteRepeaters . RecordsWereDeleted () )
		LoadList (); // if so, re-load list control from new database contents

	return;
}

// double-clicking main list box edits the selected entry
void CRfiDlg::OnDblclkRepeaterList(NMHDR* pNMHDR, LRESULT* pResult) 
{
	// call the handler for editing existing database entries
	OnEditRepeater ();
	
	*pResult = 0;
}

// we will let the record set do all the work of sorting the main listbox
void CRfiDlg::OnColumnclickRepeaterList(NMHDR* pNMHDR, LRESULT* pResult) 
{
	NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;
	
	// sort based on column that was clicked
	switch ( pNMListView -> iSubItem ) {
		case 0:
			LoadSortList ( CString ( "[ID]" ) );
			break;
		case 1:
			LoadSortList ( CString ( "[Frequency]" ) );
			break;
		case 2:
			LoadSortList ( CString ( "[Callsign]" ) );
			break;
		case 3:
			LoadSortList ( CString ( "[Input]" ) );
			break;
		case 4:
			LoadSortList ( CString ( "[City]" ) );
			break;
		case 5:
			LoadSortList ( CString ( "[State]" ) );
			break;
		default:
			LoadSortList ( CString ( "" ) ); // default: no sort.
			break;
	}
	
	*pResult = 0;