www.pudn.com > WavePlayer_Record_Save.rar > WavePlayerDlg.cpp

// WavePlayerDlg.cpp : 实现文件 
// 
 
#include "stdafx.h" 
#include "WavePlayer.h" 
#include "WavePlayerDlg.h" 
#include ".\waveplayerdlg.h" 
#include "WaveAudio.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#endif 
 
 
// 用于应用程序“关于”菜单项的 CAboutDlg 对话框 
 
class CAboutDlg : public CDialog 
{ 
public: 
	CAboutDlg(); 
 
// 对话框数据 
	enum { IDD = IDD_ABOUTBOX }; 
 
	protected: 
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持 
 
// 实现 
protected: 
	DECLARE_MESSAGE_MAP() 
}; 
 
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) 
{ 
} 
 
void CAboutDlg::DoDataExchange(CDataExchange* pDX) 
{ 
	CDialog::DoDataExchange(pDX); 
} 
 
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) 
END_MESSAGE_MAP() 
 
 
// CWavePlayerDlg 对话框 
 
 
 
CWavePlayerDlg::CWavePlayerDlg(CWnd* pParent /*=NULL*/) 
	: CDialog(CWavePlayerDlg::IDD, pParent) 
{ 
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); 
} 
 
void CWavePlayerDlg::DoDataExchange(CDataExchange* pDX) 
{ 
	CDialog::DoDataExchange(pDX); 
} 
 
BEGIN_MESSAGE_MAP(CWavePlayerDlg, CDialog) 
	ON_WM_SYSCOMMAND() 
	ON_WM_PAINT() 
	ON_WM_QUERYDRAGICON() 
	//}}AFX_MSG_MAP 
	ON_BN_CLICKED(IDC_OPEN, OnOpen) 
	ON_BN_CLICKED(IDC_PLAY, OnPlay) 
	ON_BN_CLICKED(IDC_RECORD, OnRecord) 
	ON_BN_CLICKED(IDC_SAVE, OnSave) 
	ON_BN_CLICKED(IDC_STOP, OnStop) 
END_MESSAGE_MAP() 
 
 
// CWavePlayerDlg 消息处理程序 
 
BOOL CWavePlayerDlg::OnInitDialog() 
{ 
	CDialog::OnInitDialog(); 
 
	// 将\“关于...\”菜单项添加到系统菜单中。 
 
	// IDM_ABOUTBOX 必须在系统命令范围内。 
	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); 
		} 
	} 
 
	// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动 
	//  执行此操作 
	SetIcon(m_hIcon, TRUE);			// 设置大图标 
	SetIcon(m_hIcon, FALSE);		// 设置小图标 
 
	// TODO: 在此添加额外的初始化代码 
 
	m_bOpen=FALSE; 
	 
	//还没有文件打开，所以先禁止一些按钮 
	CWnd *m_pWnd; 
	m_pWnd = GetDlgItem(IDC_SAVE); 
	m_pWnd->EnableWindow(false); 
	m_pWnd = GetDlgItem(IDC_PLAY); 
	m_pWnd->EnableWindow(false); 
	m_pWnd = GetDlgItem(IDC_STOP); 
	m_pWnd->EnableWindow(false); 
	 
	return TRUE;  // 除非设置了控件的焦点，否则返回 TRUE 
} 
 
void CWavePlayerDlg::OnSysCommand(UINT nID, LPARAM lParam) 
{ 
	if ((nID & 0xFFF0) == IDM_ABOUTBOX) 
	{ 
		CAboutDlg dlgAbout; 
		dlgAbout.DoModal(); 
	} 
	else 
	{ 
		CDialog::OnSysCommand(nID, lParam); 
	} 
} 
 
// 如果向对话框添加最小化按钮，则需要下面的代码 
//  来绘制该图标。对于使用文档/视图模型的 MFC 应用程序， 
//  这将由框架自动完成。 
 
void CWavePlayerDlg::OnPaint()  
{ 
	if (IsIconic()) 
	{ 
		CPaintDC dc(this); // 用于绘制的设备上下文 
 
		SendMessage(WM_ICONERASEBKGND, reinterpret_cast(dc.GetSafeHdc()), 0); 
 
		// 使图标在工作矩形中居中 
		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; 
 
		// 绘制图标 
		dc.DrawIcon(x, y, m_hIcon); 
	} 
	else 
	{ 
		CDialog::OnPaint(); 
		 
		if(m_bOpen) 
		{ 
			CWnd *m_pWnd; 
			CRect rect; 
			m_pWnd=GetDlgItem(IDC_WAVE_GRAPH); 
			m_pWnd->GetClientRect(rect); 
			INFO_WAVEWIDE=rect.Width(); 
			INFO_WAVEDEEP=rect.Height();			 
			 
			//CString str;str.Format("%d",rect.left); MessageBox("left",str,MB_OK); 
			//str.Format("%d",rect.top); MessageBox("top",str,MB_OK); 
			//str.Format("%d",INFO_WAVEWIDE); MessageBox("INFO_WAVEWIDE",str,MB_OK); 
			//str.Format("%d",INFO_WAVEDEEP); MessageBox("INFO_WAVEDEEP",str,MB_OK); 
			 
			CClientDC dc(m_pWnd); 
			DrawWave(dc.m_hDC,rect.left,rect.top,(char *)path.operator LPCTSTR()); 
 
	    } 
	} 
} 
 
//当用户拖动最小化窗口时系统调用此函数取得光标显示。 
HCURSOR CWavePlayerDlg::OnQueryDragIcon() 
{ 
	return static_cast(m_hIcon); 
} 
 
void CWavePlayerDlg::OnOpen() 
{ 
	// TODO: 在此添加控件通知处理程序代码 
	CString Files; 
	CString str; 
	//char buf[128]; 
	//DWORD dFlag; 
	 
	Files = "波形音频文件(*.WAV)|*.WAV||"; 
	CFileDialog FileDlg(TRUE,NULL,NULL,OFN_HIDEREADONLY,Files); 
	if(FileDlg.DoModal()==IDOK) 
	{ 
	    if(!m_Wave.Load(FileDlg.GetPathName())) 
		{ 
			MessageBox("不能打开文件","错误",MB_OK|MB_ICONSTOP); 
		} 
		 
		//strStatus.Format("文件已经正确打开"); 
		//SetDlgItemText(IDC_STATIC_STATUS,strStatus); 
		 
		CWnd *pWnd; 
		pWnd = GetDlgItem(IDC_PLAY); 
		pWnd->EnableWindow(true); 
	} 
	path=FileDlg.GetPathName(); 
	SetDlgItemText(IDC_WAVE_NAME,FileDlg.GetFileName()); 
	str.Format("%5.3f",m_Wave.GetSampleRate()/1000.); 
	str+=_T("kHZ"); 
	SetDlgItemText(IDC_SAMPLE_RATE,str); 
	str.Empty(); 
	switch(m_Wave.GetChannel()) 
	{ 
	case 1: 
		str="单声道"; 
		break; 
	case 2: 
		str="立体声"; 
		break; 
	} 
	SetDlgItemText(IDC_CHANNEL,str); 
	str.Empty(); 
	str.Format("%d",m_Wave.GetResolution()); 
	str+="位"; 
	SetDlgItemText(IDC_RESOLUTION,str); 
	str.Empty(); 
	str.Format("%2.2u:%02.2f:%02.2u",m_Wave.GetWaveLength()/1000/60,m_Wave.GetWaveLength()/1000.,m_Wave.GetWaveLength()/1000/3600); 
	SetDlgItemText(IDC_WAVE_LENGTH,str); 
 
	m_bOpen=TRUE; 
 
} 
 
void CWavePlayerDlg::OnPlay() 
{ 
	// TODO: 在此添加控件通知处理程序代码 
	m_Wave.Play(); 
	CWnd *pWnd; 
	pWnd = GetDlgItem(IDC_RECORD); 
	pWnd->EnableWindow(false); 
	pWnd = GetDlgItem(IDC_STOP); 
	pWnd->EnableWindow(true); 
} 
 
void CWavePlayerDlg::OnRecord() 
{ 
	// TODO: 在此添加控件通知处理程序代码 
	CWnd *pWnd; 
	pWnd = GetDlgItem(IDC_PLAY); 
	pWnd->EnableWindow(false); 
	pWnd = GetDlgItem(IDC_SAVE); 
	pWnd->EnableWindow(true); 
	pWnd = GetDlgItem(IDC_OPEN); 
	pWnd->EnableWindow(false); 
 
	m_Wave.Record(); 
} 
 
void CWavePlayerDlg::OnSave() 
{ 
	// TODO: 在此添加控件通知处理程序代码 
	CString Filter; 
 
	Filter = "波形文件(*.wav)|*.WAV||"; 
	CFileDialog FileDlg(false,NULL,NULL,OFN_OVERWRITEPROMPT,Filter); 
	FileDlg.m_ofn.lpstrDefExt = "wav"; 
	 
	if(FileDlg.DoModal()==IDOK) 
		//strStatus.Format("正在保存文件……"); 
		//SetDlgItemText(IDC_STATIC_STATUS,strStatus); 
		 
		m_Wave.Save(FileDlg.GetPathName()); 
	 
		//strStatus.Empty(); 
		//strStatus.Format("文件保存结束"); 
		//SetDlgItemText(IDC_STATIC_STATUS,strStatus); 
	 
 
} 
 
void CWavePlayerDlg::OnStop() 
{ 
	// TODO: 在此添加控件通知处理程序代码 
	CWnd *pWnd; 
	pWnd = GetDlgItem(IDC_PLAY); 
	pWnd->EnableWindow(true); 
	pWnd = GetDlgItem(IDC_OPEN); 
	pWnd->EnableWindow(true); 
	pWnd = GetDlgItem(IDC_SAVE); 
	pWnd->EnableWindow(true); 
    pWnd = GetDlgItem(IDC_RECORD); 
	pWnd->EnableWindow(true); 
	m_Wave.Stop(); 
} 
 
 
void CWavePlayerDlg::DrawWave(HDC hdc,unsigned int x,unsigned int y,char *path) 
{ 
	HMMIO h; 
	MMCKINFO mmParent,mmSub; 
	GLOBALHANDLE gh; 
	PCMWAVEFORMAT waveformat; 
	char *p; 
	unsigned long nextsample; 
	float afactor = (float) 0.0; 
	unsigned int i,n,amp; 
	int *ip; 
 
	HPEN OldPen=(HPEN)SelectObject(hdc,GetStockObject(BLACK_PEN)); 
	HBRUSH OldBrush=(HBRUSH)SelectObject(hdc,GetStockObject(WHITE_PEN)); 
	Rectangle(hdc,x,y,x+INFO_WAVEWIDE,y+INFO_WAVEDEEP); 
		SelectObject(hdc,OldPen); 
       (HBRUSH)SelectObject(hdc,OldBrush); 
 
	if((h=mmioOpen(path,NULL,MMIO_READ))==NULL) 
		return; 
 
	mmParent.fccType=mmioFOURCC('W','A','V','E'); 
	if(mmioDescend(h,(LPMMCKINFO)&mmParent,NULL,MMIO_FINDRIFF)) 
	{ 
		MessageBox("ok","1",MB_OK); 
		mmioClose(h,0); 
		return; 
	} 
 
	mmSub.ckid=mmioFOURCC('f','m','t',' '); 
	if(mmioDescend(h,(LPMMCKINFO)&mmSub,(LPMMCKINFO)&mmParent,MMIO_FINDCHUNK)) 
	{ 
		MessageBox("ok","2",MB_OK); 
		mmioClose(h,0); 
		return; 
	} 
 
	n=min((unsigned int)mmSub.cksize,sizeof(PCMWAVEFORMAT)); 
	if(mmioRead(h,(LPSTR)&waveformat,n)!=n) 
	{ 
		MessageBox("ok","3",MB_OK); 
		mmioClose(h,0); 
		return; 
	}CString s; 
 
 
	if(waveformat.wf.wFormatTag!=WAVE_FORMAT_PCM) 
	{ 
		MessageBox("ok","不是PCM文件",MB_OK); 
		mmioClose(h,0); 
		return; 
	} 
 
	mmioAscend(h,&mmSub,0); 
 
	mmSub.ckid=mmioFOURCC('d','a','t','a'); 
	if(mmioDescend(h,(LPMMCKINFO)&mmSub,(LPMMCKINFO)&mmParent,MMIO_FINDCHUNK)) 
	{ 
		MessageBox("ok","4",MB_OK); 
		mmioClose(h,0); 
		return; 
	}    
	   // CString str;	str.Format("%d",waveformat.wBitsPerSample);MessageBox("ok",str,MB_OK); 
        //str.Format("%d",waveformat.wBitsPerSample); MessageBox("waveformat.wBitsPerSample",str,MB_OK);  
		//str.Format("%d",waveformat.wf.nChannels); MessageBox("waveformat.wf.nChannels",str,MB_OK); 
 
	if(waveformat.wBitsPerSample==8&&waveformat.wf.nChannels==1) 
	{ 
		nextsample=mmSub.cksize / INFO_WAVEWIDE; 
		afactor =  (((2 * 255) / (float) INFO_WAVEDEEP)); 
		//__asm int 3// 需要断点的地方加上这句 
		CString str; 
		//str.Format("%d",mmSub.cksize); MessageBox("mmSub.cksize",str,MB_OK); 
		//str.Format("%.4f",afactor); MessageBox("afactor",str,MB_OK);  
		//str.Format("%d",nextsample); MessageBox("nextsample",str,MB_OK); 
		//str.Format("%d",INFO_WAVEDEEP); MessageBox("INFO_WAVEDEEP",str,MB_OK); 
		//str.Format("%d",INFO_WAVEWIDE); MessageBox("INFO_WAVEWIDE",str,MB_OK); 
		//return; 
	} 
 
	else if(waveformat.wBitsPerSample==8&&waveformat.wf.nChannels==2) 
	{ 
		nextsample=2L*((mmSub.cksize/2L)/(long)INFO_WAVEWIDE); 
		afactor=2L*(255L/(long)INFO_WAVEDEEP); 
 
	} 
 
	else if(waveformat.wBitsPerSample>8&&waveformat.wf.nChannels==1) 
	{ 
		nextsample=2L*((mmSub.cksize/(long)INFO_WAVEWIDE))&0xfffffffeL; 
		afactor=2L*(65535L/(long)INFO_WAVEDEEP); 
	} 
	else  
	{ 
		nextsample=4L*((mmSub.cksize/4L)/(long)INFO_WAVEWIDE)&0xfffffffeL; 
		afactor=2L*(65535L/(long)INFO_WAVEDEEP); 
	} 
 
	MoveToEx(hdc,x,y+INFO_WAVEDEEP/2,NULL); 
	LineTo(hdc,x+INFO_WAVEWIDE,y+INFO_WAVEDEEP/2); 
 
	if((gh=GlobalAlloc(GMEM_MOVEABLE,mmSub.cksize))!=NULL) 
	{ 
	     if((p=(char*)GlobalLock(gh))!=NULL) 
		 { 
			 if(mmioRead(h,p,mmSub.cksize)==mmSub.cksize) 
			 { 
			 for(i=0;i8&&waveformat.wf.nChannels==1) 
					 amp=(unsigned int)max(labs((long)ip[0]/afactor),1L); 
				 else 
					 amp=(unsigned int)max(labs((((long)ip[0]+(long)ip[1])/2)/afactor),1L); 
 
	            MoveToEx(hdc,x+i,y+(INFO_WAVEDEEP/2)-amp,NULL); 
	            LineTo(hdc,x+i,y+(INFO_WAVEDEEP/2)+amp); 
				//CString str;   str.Format("%d",x); MessageBox("x",str,MB_OK); 
				//str.Format("%d",y); MessageBox("y",str,MB_OK); 
		        //str.Format("%d",y+(INFO_WAVEDEEP/2)-amp); MessageBox("y+(INFO_WAVEDEEP/2)-amp",str,MB_OK); 
				//CString str;   str.Format("%d",x+i); MessageBox("x+i",str,MB_OK); 
		       //str.Format("%d",y+(INFO_WAVEDEEP/2)+amp); MessageBox("y+(INFO_WAVEDEEP/2)+amp",str,MB_OK); 
				//return; 
 
				//i+=2; 
				p+=nextsample; 
				} 
			 } 
		 GlobalUnlock(gh); 
		 } 
	GlobalFree(gh); 
	} 
 
	//SelectObject(hdc,OldPen); 
	//(HBRUSH)SelectObject(hdc,OldBrush); 
    //CString str;   str.Format("%d",i); MessageBox("i",str,MB_OK); 
	mmioClose(h,0); 
	return; 
 
}