mp3播放器dlg.cpp

一个本人学习期间写的播放音乐的代码,希望大家有用

// mp3播放器Dlg.cpp : 实现文件
//

#include "stdafx.h"
#include "mp3播放器.h"
#include "mp3播放器Dlg.h"
#include ".\mp3播放器dlg.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()


// Cmp3Dlg 对话框



Cmp3Dlg::Cmp3Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(Cmp3Dlg::IDD, pParent)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	AM=new CAvi_Mp3();
	for (int i=0;i<100;i++)
	{
		ZeroMemory(&playdate[i], sizeof(Date));
		playdate[i].ling=-2;
	}
	ling=0;
	ling2=0;
	jsq=0;
	jsq2=0;
	bz=false;
}
void Cmp3Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	DDX_Control(pDX, IDC_LIST1, m_list);
}

BEGIN_MESSAGE_MAP(Cmp3Dlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
	ON_BN_CLICKED(IDOK, OnBnClickedOk)
	ON_BN_CLICKED(IDOK3, OnBnClickedOk3)
	ON_BN_CLICKED(IDOK2, OnBnClickedOk2)
	ON_BN_CLICKED(IDCANCEL, OnBnClickedCancel)
	ON_BN_CLICKED(IDC_BUTTON1, OnBnClickedButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnBnClickedButton2)
	ON_LBN_DBLCLK(IDC_LIST1, OnLbnDblclkList1)
END_MESSAGE_MAP()


// Cmp3Dlg 消息处理程序

BOOL Cmp3Dlg::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
	
	return TRUE;  // 除非设置了控件的焦点，否则返回 TRUE
}

void Cmp3Dlg::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 Cmp3Dlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // 用于绘制的设备上下文

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(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();
	}
}

//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 Cmp3Dlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}

void Cmp3Dlg::OnBnClickedOk()
{
	if (AM->m_pMediaPosition)
	{
		AM->m_pMediaPosition->Release();
		AM->m_pMediaPosition=NULL;
	}
	if (AM->m_pMediaControl)
	{
		AM->m_pMediaControl->Stop();
		AM->m_pMediaControl->Release();
		AM->m_pMediaControl=NULL;
	}	
	if (AM->m_pGraph)
	{	
		AM->m_pGraph->Release();
		AM->m_pGraph=NULL;
	}
	ling2=m_list.GetCurSel();
	for (jsq2=0;jsq2<100;jsq2++)
	{
		if (ling2==playdate[jsq2].ling)
			break;
	}
	if (strcmp(playdate[jsq2].ml,"")!=0)
	{
		if (playdate[jsq2].ml)
		{
		}
		if (playdate[jsq2].ty==1)
			AM->InitMp3();
		if (playdate[jsq2].ty==2)
			AM->InitAvi();
		AM->PlayMedia(playdate[jsq2].ml);
	}
}

void Cmp3Dlg::OnBnClickedOk3()
{
	AM->Pause();
}

void Cmp3Dlg::OnBnClickedOk2()
{
	if (AM->m_pMediaPosition)
	{
		AM->m_pMediaPosition->Release();
		AM->m_pMediaPosition=NULL;
	}
	if (AM->m_pMediaControl)
	{
		AM->m_pMediaControl->Stop();
		AM->m_pMediaControl->Release();
		AM->m_pMediaControl=NULL;
	}	
	if (AM->m_pGraph)
	{	
		AM->m_pGraph->Release();
		AM->m_pGraph=NULL;
	}
}

void Cmp3Dlg::OnBnClickedCancel()
{
	// TODO: 在此添加控件通知处理程序代码
	delete AM;
	OnCancel();
}

void Cmp3Dlg::OnBnClickedButton1()
{
	OPENFILENAME  ofn;
	wchar_t szFile[260];       // buffer for file name
	ZeroMemory(&ofn, sizeof(ofn));
	ofn.lStructSize = sizeof(ofn);
	ofn.lpstrFile = LPSTR(szFile);
	ofn.lpstrFile[0] = '\0';
	ofn.nMaxFile = sizeof(szFile);
	ofn.lpstrFilter = LPCSTR("mp3\0*.mp3\0avi\0*.avi\0");
	ofn.nFilterIndex = 1;
	ofn.lpstrFileTitle = NULL;
	ofn.nMaxFileTitle = 0;
	ofn.lpstrInitialDir = NULL;
	ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
	GetOpenFileName( &ofn );
	if (strcmp(ofn.lpstrFile,"")!=0)
	{
	
		for (jsq=0;jsq<100;jsq++)
		{
			if (playdate[jsq].ty==0)
				break;
		}
		if (jsq<100)
		{
			strcpy(playdate[jsq].ml,ofn.lpstrFile);
			char ls[260];
			char* ls1;
			char* ls2;
			ZeroMemory(&ls,sizeof(ls));
			strcpy(ls,playdate[jsq].ml);
			ls1=strtok(ls,"\\");
			while (ls1!=NULL)
			{
				ls1=strtok(NULL,"\\");
				if (ls1==NULL)
					break;
				ls2=ls1;
			}
			strcpy(playdate[jsq].name,ls2);
			if (strcmp(ofn.lpstrFilter,"mp3")==0)
			{
				playdate[jsq].ty=1;
			}
			if (strcmp(ofn.lpstrFilter,"avi")==0)
			{
				playdate[jsq].ty=2;
			}
			ling = m_list.GetCount(); 
			playdate[jsq].ling=ling;
			m_list.InsertString(ling,LPCTSTR(playdate[jsq].name));
			m_list.SetCurSel(ling);
			ls1=NULL;
			ls2=NULL;
		}
	}
}

void Cmp3Dlg::OnBnClickedButton2()
{
	ling = m_list.GetCurSel();
	m_list.DeleteString(ling);
	for (int i=0;i<100;i++)
	{
		if (playdate[i].ling==ling)
		{
			ZeroMemory(&playdate[i], sizeof(Date));
			playdate[i].ling=-2;
		}
	}
}

void Cmp3Dlg::OnLbnDblclkList1()
{
	if (AM->m_pMediaPosition)
	{
		AM->m_pMediaPosition->Release();
		AM->m_pMediaPosition=NULL;
	}
	if (AM->m_pMediaControl)
	{
		AM->m_pMediaControl->Stop();
		AM->m_pMediaControl->Release();
		AM->m_pMediaControl=NULL;
	}	
	if (AM->m_pGraph)
	{	
		AM->m_pGraph->Release();
		AM->m_pGraph=NULL;
	}
	ling2=m_list.GetCurSel();
	for (jsq2=0;jsq2<100;jsq2++)
	{
		if (ling2==playdate[jsq2].ling)
		break;
	}
	if (playdate[jsq2].ty==1)
	AM->InitMp3();
	if (playdate[jsq2].ty==2)
	AM->InitAvi();
	AM->PlayMedia(playdate[jsq2].ml);
}