multim~2.cpp

趣味编程媒体播~1.rar

// MultimediaDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Multimedia.h"
#include "MultimediaDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CMultimediaDlg dialog

CMultimediaDlg::CMultimediaDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMultimediaDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMultimediaDlg)
		// 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);
	fileOpen = false;
	count = 0;
}

void CMultimediaDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMultimediaDlg)
	DDX_Control(pDX, IDC_SLIDER2, m_ctrlVolume);
	DDX_Control(pDX, IDC_EXIT, m_exitButton);
	DDX_Control(pDX, IDC_PAUSE, m_pauseButton);
	DDX_Control(pDX, IDC_OPEN, m_openButton);
	DDX_Control(pDX, IDC_STOP, m_stopButton);
	DDX_Control(pDX, IDC_PLAY, m_playButton);
	DDX_Control(pDX, IDC_ACTIVEMOVIECONTROL1, m_activeMovie);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMultimediaDlg, CDialog)
	//{{AFX_MSG_MAP(CMultimediaDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_PLAY, OnPlay)
	ON_BN_CLICKED(IDC_EXIT, OnExit)
	ON_BN_CLICKED(IDC_OPEN, OnOpen)
	ON_BN_CLICKED(IDC_PAUSE, OnPause)
	ON_BN_CLICKED(IDC_STOP, OnStop)
	ON_WM_TIMER()
	ON_COMMAND(ID_MENUITEM_RECORD, OnMenuitemRecord)
	ON_COMMAND(ID_MENUITEM_SAVE, OnMenuitemSave)
	ON_WM_VSCROLL()
	ON_COMMAND(ID_MENUITEM_REPLAY, OnMenuitemReplay)
	ON_COMMAND(ID_MENUITEM_OPENCD, OnMenuitemOpencd)
	ON_COMMAND(ID_MENUITEM_CLOSECD, OnMenuitemClosecd)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMultimediaDlg message handlers
int static strPartDim[4]= {200, 350, 450, -1};//StatusBar

BOOL CMultimediaDlg::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
	
	//为按钮加载位图
	m_hBmp = ::LoadBitmap(HINSTANCE(GetModuleHandle(0)),MAKEINTRESOURCE(IDB_PLAY));
	m_playButton.SetBitmap(m_hBmp);
	m_hBmp = ::LoadBitmap(HINSTANCE(GetModuleHandle(0)),MAKEINTRESOURCE(IDB_STOP));
	m_stopButton.SetBitmap(m_hBmp);
	m_hBmp = ::LoadBitmap(HINSTANCE(GetModuleHandle(0)),MAKEINTRESOURCE(IDB_OPEN));
	m_openButton.SetBitmap(m_hBmp);
	m_hBmp = ::LoadBitmap(HINSTANCE(GetModuleHandle(0)),MAKEINTRESOURCE(IDB_PAUSE));
	m_pauseButton.SetBitmap(m_hBmp);
	m_hBmp = ::LoadBitmap(HINSTANCE(GetModuleHandle(0)),MAKEINTRESOURCE(IDB_EXIT));
	m_exitButton.SetBitmap(m_hBmp);

	//状态条控件初始化
	m_wndStatusBar.Create(WS_CHILD|WS_VISIBLE|CCS_BOTTOM|CCS_NODIVIDER,CRect(0,0,0,0),this,102);
	m_wndStatusBar.SetParts(4,strPartDim);
	m_wndStatusBar.SetText("当前无文件播放",0,0);
	m_wndStatusBar.SetText("时间",1,0);
	m_wndStatusBar.SetText("Computer74",2,0);

	//为菜单项加载位图
	pMainMenu = GetMenu();
	pSubMenu = pMainMenu->GetSubMenu(0);
	m_bmp[0].LoadBitmap(IDB_MOPEN);
	pSubMenu->SetMenuItemBitmaps(IDC_OPEN,MF_BYCOMMAND,&m_bmp[0],&m_bmp[0]);
	m_bmp[1].LoadBitmap(IDB_MSAVE);
	pSubMenu->SetMenuItemBitmaps(ID_MENUITEM_SAVE,MF_BYCOMMAND,&m_bmp[1],&m_bmp[1]);
	m_bmp[2].LoadBitmap(IDB_MEXIT);
	pSubMenu->SetMenuItemBitmaps(IDC_EXIT,MF_BYCOMMAND,&m_bmp[2],&m_bmp[2]);

	//柱状音效显示控件初始化
	CRect rect;
	GetDlgItem(IDC_STATIC_HISTOGRAM)->GetWindowRect(rect);
	ScreenToClient(rect);
	m_HistogramCtrl.Create(WS_VISIBLE | WS_CHILD, rect, this, 100);
	m_HistogramCtrl.SetRange(0,100);

	//滑块控件初始化
	pMasterVolume = (IVolume*)(new CVolumeOutMaster());
	m_ctrlVolume.SetRange(pMasterVolume->GetMinimalVolume(),30000);
	m_ctrlVolume.SetLineSize(1000);
	m_ctrlVolume.SetPageSize(5000);
	m_ctrlVolume.SetTicFreq(1000);
	m_ctrlVolume.SetPos(3000);
	SetVolume(3000);
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CMultimediaDlg::OnPlay() 
{
	//按钮事件，播放媒体文件
	// TODO: Add your control notification handler code here
	if(fileOpen)
	{
		m_media.Play(this,pFileName);
		SetTimer(1,250,NULL);
	}
}
BOOL CMultimediaDlg::DestroyWindow() 
{
	// TODO: Add your specialized code here and/or call the base class
	DeleteObject(m_hBmp);
	return CDialog::DestroyWindow();
}

void CMultimediaDlg::OnExit() 
{
	//按钮事件，关闭设备并退出程序
	// TODO: Add your control notification handler code here
	m_media.CloseDevice();
	KillTimer(1);
	OnOK();
}

void CMultimediaDlg::OnOpen() 
{
	//按钮事件，打开设备
	// TODO: Add your control notification handler code here
	CFileDialog dlg(TRUE, "midi", "*.mid",OFN_HIDEREADONLY 
		| OFN_OVERWRITEPROMPT,"Midi Files(*.mid)|*.mid|Wave Files(*.wav)|*.wav|AVI Files(*.AVI)|*.AVI|All Files(*.*)|*.*||");
	if(dlg.DoModal() == IDOK)
	{
		pFileName = dlg.GetPathName();
		pFileExt = dlg.GetFileExt();
		m_media.OpenDevice((LPCTSTR)pFileName,(LPCSTR)pFileExt);
		fileOpen = true;
		m_wndStatusBar.SetText(pFileName,0,0);
	}
}

void CMultimediaDlg::OnPause() 
{
	//按钮事件，暂停文件的播放
	// TODO: Add your control notification handler code here
	if(fileOpen)
	{
		m_media.Pause();
		KillTimer(1);
	}
}
void CMultimediaDlg::OnStop() 
{
	//按钮事件，停止文件的播放
	// TODO: Add your control notification handler code here
	if(fileOpen)
	{
		m_media.Stop();
		KillTimer(1);
		m_HistogramCtrl.InvalidateCtrl();
		count = 0;
	}
}

void CMultimediaDlg::OnTimer(UINT nIDEvent) 
{
	//定时器响应，显示柱状音效和已播放过的时间
	// TODO: Add your message handler code here and/or call default
	CTime t = CTime::GetCurrentTime();
	int nRandom;
	srand(t.GetSecond());
	do
	{
		nRandom = rand();
	} while (nRandom < 0 || nRandom > 100);
	m_HistogramCtrl.SetPos(nRandom);
	nIDEvent=10;
	CString TimeCon,Min,Sec;
	char temp[10];
	count ++;
	_itoa(count/4/60,temp,10);
	Min = (CString)temp;
	TimeCon = "时间  " + Min + " 分";
	_itoa(count/4%60,temp,10);
	Sec = (CString)temp;
	TimeCon = TimeCon + Sec + " 秒";
	m_wndStatusBar.SetText(TimeCon,1,0);
	CDialog::OnTimer(nIDEvent);
}

void CMultimediaDlg::OnMenuitemRecord() 
{
	//菜单事件，开始录音
	// TODO: Add your command handler code here
	if(m_media.type == WAVE)
	{
		m_media.BeginRecord();
	}
}

void CMultimediaDlg::OnMenuitemSave() 
{
	//菜单事件，保存录音段
	// TODO: Add your command handler code here
	if(m_media.type == WAVE)
	{
		CFileDialog dlg(TRUE, "wave", "*.wav",OFN_HIDEREADONLY 
		| OFN_OVERWRITEPROMPT,"Wave Files(*.wav)|*.wav|");
		if(dlg.DoModal() == IDOK)
		{
			m_media.SaveRecord(dlg.GetFileName());
			OnStop();
		}
	}
}

void CMultimediaDlg::SetVolume(DWORD dwValue)
{
	//设定音量
	if ( !pMasterVolume || !pMasterVolume->IsAvailable() )
	{
		// handle error
	}
	pMasterVolume->Enable();
	pMasterVolume->RegisterNotificationSink( MasterVolumeChanged, dwValue );
	pMasterVolume->SetCurrentVolume( dwValue );
	//DWORD dwCurrentVolume = pMasterVolume->SetCurrentVolume(dwValue);
}

void CALLBACK MasterVolumeChanged( DWORD dwCurrentVolume, DWORD dwUserValue )
{
	//音量设定的回调函数
}

void CMultimediaDlg::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{
	//滑块事件
	// TODO: Add your message handler code here and/or call default
	int nNewPos = 0;
	
	switch(nSBCode)
	{
	case SB_TOP: //Scroll to far left.
		nNewPos = m_ctrlVolume.GetRangeMin();
		break;

	case SB_ENDSCROLL: //end scroll.
		return;

	case SB_LINELEFT: //Scroll left.
		nNewPos = m_ctrlVolume.GetPos() - m_ctrlVolume.GetLineSize();
		break;

	case SB_LINERIGHT: //Scroll right.
		nNewPos = m_ctrlVolume.GetPos() + m_ctrlVolume.GetLineSize();
		break;

	case SB_PAGELEFT: //Scroll one page left.
		nNewPos = m_ctrlVolume.GetPos() - m_ctrlVolume.GetPageSize();
		break;

	case SB_PAGERIGHT: //Scroll one page right.
		nNewPos = m_ctrlVolume.GetPos() + m_ctrlVolume.GetPageSize();
		break;

	case SB_BOTTOM: //Scroll to far right.
		nNewPos = m_ctrlVolume.GetRangeMax();
		break;

	case SB_THUMBPOSITION: //Scroll to absolute position. The current position is specified by the nPos parameter.
		nNewPos = nPos;
		break;

	case SB_THUMBTRACK: //rag scroll box to specified position. The current position is specified by the 
		nNewPos = nPos;
		break;
	}
	
	nNewPos = max(nNewPos, m_ctrlVolume.GetRangeMin());
	nNewPos = min(nNewPos, m_ctrlVolume.GetRangeMax());
	SetVolume(nNewPos);
	
	CDialog::OnVScroll(nSBCode, nPos, pScrollBar);
}
	

void CMultimediaDlg::OnMenuitemReplay() 
{
	//菜单函数，重新播放文件
	// TODO: Add your command handler code here
	if(fileOpen)
	{
		m_media.paused = false;
		m_media.Play(this,pFileName);
		SetTimer(1,250,NULL);
	}
}

void CMultimediaDlg::OnMenuitemOpencd() 
{
	//菜单函数，开光驱门
	// TODO: Add your command handler code here
	m_media.OpenCDRom();
}

void CMultimediaDlg::OnMenuitemClosecd() 
{
	//菜单函数，关光驱门
	// TODO: Add your command handler code here
	m_media.CloseCDRom();
}