MyCDPlayerDlg.cpp
上传用户:sdpcwz
上传日期:2009-12-14
资源大小:1237k
文件大小:9k
- // MyCDPlayerDlg.cpp : implementation file
- //
- #include "stdafx.h"
- #include "MyCDPlayer.h"
- #include "MyCDPlayerDlg.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()
- /////////////////////////////////////////////////////////////////////////////
- // CMyCDPlayerDlg dialog
- CMyCDPlayerDlg::CMyCDPlayerDlg(CWnd* pParent /*=NULL*/)
- : CDialog(CMyCDPlayerDlg::IDD, pParent)
- {
- //{{AFX_DATA_INIT(CMyCDPlayerDlg)
- // 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 CMyCDPlayerDlg::DoDataExchange(CDataExchange* pDX)
- {
- CDialog::DoDataExchange(pDX);
- //{{AFX_DATA_MAP(CMyCDPlayerDlg)
- DDX_Control(pDX, IDC_MUSIC_LIST, m_lstMusics);
- //}}AFX_DATA_MAP
- }
- BEGIN_MESSAGE_MAP(CMyCDPlayerDlg, CDialog)
- //{{AFX_MSG_MAP(CMyCDPlayerDlg)
- ON_WM_SYSCOMMAND()
- ON_WM_PAINT()
- ON_WM_QUERYDRAGICON()
- ON_WM_TIMER()
- ON_BN_CLICKED(IDC_PLAY, OnPlay)
- ON_BN_CLICKED(IDC_STOP, OnStop)
- ON_BN_CLICKED(IDC_PAUSE, OnPause)
- ON_BN_CLICKED(IDC_FORWARD, OnForward)
- ON_BN_CLICKED(IDC_BACK, OnBack)
- ON_BN_CLICKED(IDC_SKIPBACK, OnSkipback)
- ON_BN_CLICKED(IDC_SKIPFORWARD, OnSkipforward)
- ON_CBN_SELCHANGE(IDC_MUSIC_LIST, OnSelchangeMusicList)
- ON_WM_DESTROY()
- //}}AFX_MSG_MAP
- END_MESSAGE_MAP()
- /////////////////////////////////////////////////////////////////////////////
- // CMyCDPlayerDlg message handlers
- BOOL CMyCDPlayerDlg::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
- //打开设备
- m_CDAudio.Open();
- //创建一个定时器
- SetTimer( 1, 1000, NULL );
- //将曲目加到CComboBox控件中
- for(int i=0;i<m_CDAudio.GetTotalTracks();i++)
- {
- CString str;
- str.Format("曲目%d",i+1);
- m_lstMusics.AddString(str);
- }
- m_lstMusics.SetCurSel(0);
- return TRUE; // return TRUE unless you set the focus to a control
- }
- void CMyCDPlayerDlg::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 CMyCDPlayerDlg::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 CMyCDPlayerDlg::OnQueryDragIcon()
- {
- return (HCURSOR) m_hIcon;
- }
- void CMyCDPlayerDlg::OnDestroy()
- {
- //杀掉定时器
- KillTimer(1);
- CDialog::OnDestroy();
- }
- void CMyCDPlayerDlg::OnTimer(UINT nIDEvent)
- {
- BOOL bDriveReady = TRUE;
- //获得当前曲目已经播放的时间,并显示
- CString strStatus;
- strStatus.Format( "[%d] %02d:%02d",
- m_CDAudio.GetCurrentTrack(),
- m_CDAudio.GetMinutes(),
- m_CDAudio.GetSeconds() );
- //没有CD
- if( m_CDAudio.GetCurrentTrack() == -1 ){
- strStatus = "没有CD";
- bDriveReady = FALSE;
- }
- SetDlgItemText( IDC_TRACKINFO, strStatus );
- //获得CD的总共长度,并显示
- CString strLength;
- int nMinutes, nSeconds;
- m_CDAudio.GetTotalLength( &nMinutes,
- &nSeconds );
- strLength.Format( "总共长度(m:s): %02d:%02d",
- nMinutes, nSeconds );
- if( nMinutes == -1 )
- strLength = "总共长度(m:s): 00:00";
- SetDlgItemText( IDC_TOTALTIME, strLength );
- //获得当前们曲目长度,并显示
- m_CDAudio.GetTrackLength(
- m_CDAudio.GetCurrentTrack(),
- &nMinutes, &nSeconds );
- strLength.Format( "曲目长度(m:s): %02d:%02d",
- nMinutes, nSeconds );
- if( nMinutes == -1 )
- strLength = "曲目长度(m:s): 00:00";
- SetDlgItemText( IDC_TRACKTIME, strLength );
- //根据播放状态改变按钮的可用与不可用状态
- CWnd *pWnd;
- pWnd = GetDlgItem( IDC_BACK );
- pWnd->EnableWindow( bDriveReady );
- pWnd = GetDlgItem( IDC_FORWARD );
- pWnd->EnableWindow( bDriveReady );
- pWnd = GetDlgItem( IDC_SKIPBACK );
- pWnd->EnableWindow( bDriveReady );
- pWnd = GetDlgItem( IDC_SKIPFORWARD );
- pWnd->EnableWindow( bDriveReady );
- BOOL bPaused;
- if( m_CDAudio.IsPlaying( &bPaused ) ){
- pWnd = GetDlgItem( IDC_PLAY );
- pWnd->EnableWindow( bPaused );
- pWnd = GetDlgItem( IDC_STOP );
- pWnd->EnableWindow( bDriveReady );
- pWnd = GetDlgItem( IDC_PAUSE );
- pWnd->EnableWindow( bDriveReady && !bPaused );
- }
- else{
- pWnd = GetDlgItem( IDC_PLAY );
- pWnd->EnableWindow( bDriveReady );
- pWnd = GetDlgItem( IDC_STOP );
- pWnd->EnableWindow( FALSE );
- pWnd = GetDlgItem( IDC_PAUSE );
- pWnd->EnableWindow( FALSE );
- }
- CDialog::OnTimer(nIDEvent);
- }
- void CMyCDPlayerDlg::OnPlay()
- {
- // 如果光驱中的CD已经准备好就播放
- if( m_CDAudio.IsDriveReady() )
- m_CDAudio.Play();
- }
- void CMyCDPlayerDlg::OnStop()
- {
- // 停止播放
- m_CDAudio.Stop();
- }
- void CMyCDPlayerDlg::OnPause()
- {
- // 暂停播放
- m_CDAudio.Pause();
- }
- void CMyCDPlayerDlg::OnForward()
- {
-
- // 获得当前曲目的播放长度
- int nMinutes = m_CDAudio.GetMinutes();
- int nSeconds = m_CDAudio.GetSeconds();
- int nTrack = m_CDAudio.GetCurrentTrack();
- if( nMinutes == -1 )
- return;
- //向前跳跃5秒,保证没有出界
- nSeconds += 5;
- if( nSeconds > 59 ){
- nMinutes++;
- nSeconds -= 60;
- }
- int nTrackMinutes, nTrackSeconds;
- m_CDAudio.GetTrackLength( nTrack,
- &nTrackMinutes, &nTrackSeconds );
- if( nMinutes * 60 + nSeconds >
- nTrackMinutes * 60 + nTrackSeconds ){
- nMinutes = nTrackMinutes;
- nSeconds = nTrackSeconds;
- }
- //定位到新的位置
- m_CDAudio.SeekTo( nTrack,
- nMinutes, nSeconds, 0 );
- }
- void CMyCDPlayerDlg::OnBack()
- {
- // 获得当前曲目的播放长度
- int nMinutes = m_CDAudio.GetMinutes();
- int nSeconds = m_CDAudio.GetSeconds();
- int nTrack = m_CDAudio.GetCurrentTrack();
- if( nMinutes == -1 )
- return;
- //向前跳跃5秒,保证没有出界
- nSeconds -= 5;
- if( nSeconds < 0 ){
- nMinutes--;
- nSeconds += 60;
- if( nMinutes < 0 )
- nMinutes = 0;
- }
- //定位到新的位置
- m_CDAudio.SeekTo( nTrack,
- nMinutes, nSeconds, 0 );
- }
- void CMyCDPlayerDlg::OnSkipback()
- {
- //向后跳跃一个曲目
- int nTrack = m_CDAudio.GetCurrentTrack() - 1;
- if( nTrack < 1 )
- nTrack = m_CDAudio.GetTotalTracks();
- m_CDAudio.SeekTo( nTrack, 0, 0, 0 );
- }
- void CMyCDPlayerDlg::OnSkipforward()
- {
- //向前跳跃一个曲目
- int nTrack = m_CDAudio.GetCurrentTrack() + 1;
- if( nTrack > m_CDAudio.GetTotalTracks() )
- nTrack = 1;
- m_CDAudio.SeekTo( nTrack, 0, 0, 0 );
- }
- void CMyCDPlayerDlg::OnSelchangeMusicList()
- {
- //当CComboBox的曲目选择改变时,播放被选择曲目
- int nSelTrack = m_lstMusics.GetCurSel();
- m_CDAudio.SeekTo(nSelTrack+1,0,0,0);
- }