基于QT制作的音乐播放器（附原代码）

#include <QtGui> #include "mainwindow.h" #include "aboutdialog.h" #include "about.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) { //定义可以播放的文件格式 exts.append("mp3"); exts.append("wma"); exts.append("mid"); exts.append("wav"); exts.append("mpa"); exts.append("mp2"); exts.append("m1a"); exts.append("m2a"); exts.append("ogg"); exts.append("ra"); exts.append("m4a"); exts.append("aac"); exts.append("mka"); exts.append("ape"); exts.append("mpc"); exts.append("mod"); exts.append("flac"); currentPlayIndex=-1; //当前播放的曲目 initView(); //初始化界面 } MainWindow::~MainWindow() { delete this; } //overwrite system close Event void MainWindow::closeEvent(QCloseEvent *event) { QMessageBox::StandardButton ret=QMessageBox::question(this,"Music player","您确定要退出程序吗?",QMessageBox::Yes|QMessageBox::No,QMessageBox::Yes); if(ret==QMessageBox::Yes) { //释放播放器资源 mediaObject->stop(); mediaObject->clearQueue(); exit(0); } else { event->ignore(); } } void MainWindow::initView() { resize(380,90); setMaximumSize(380,300); setMinimumSize(380,90); setWindowTitle(tr("网络mp3")); setWindowIcon(QIcon("1.png")); audioOutput = new Phonon::AudioOutput(Phonon::MusicCategory, this); mediaObject = new Phonon::MediaObject(this); mediaObject->setTickInterval(1000); connect(mediaObject, SIGNAL(tick(qint64)), this, SLOT(tick(qint64)));//关联进度时间显示 connect(mediaObject, SIGNAL(stateChanged(Phonon::State,Phonon::State)), this, SLOT(stateChanged(Phonon::State,Phonon::State)));//关联进度条 connect(mediaObject, SIGNAL(currentSourceChanged(Phonon::MediaSource)), this, SLOT(sourceChanged(Phonon::MediaSource))); connect(mediaObject, SIGNAL(finished()), this, SLOT(playFinished())); Phonon::createPath(mediaObject, audioOutput); addFileAction=new QAction(tr("添加文件"),this); addFileAction->setShortcut(tr("Ctrl+O")); connect(addFileAction,SIGNAL(triggered()),this,SLOT(addFiles())); addDirectoryAction=new QAction(tr("添加目录"),this); addDirectoryAction->setShortcut(tr("Ctrl+D")); connect(addDirectoryAction,SIGNAL(triggered()),this,SLOT(addDirectory())); openPlayListAction=new QAction(tr("打开列表"),this); openPlayListAction->setShortcut(tr("Ctrl+L")); connect(openPlayListAction,SIGNAL(triggered()),this,SLOT(openPlayList())); savePlayListAction=new QAction(tr("保存列表"),this); savePlayListAction->setShortcut(tr("Ctrl+S")); connect(savePlayListAction,SIGNAL(triggered()),this,SLOT(savePlayList())); quitAction = new QAction(tr("退出程序"), this); quitAction->setShortcut(tr("Ctrl+Q")); connect(quitAction,SIGNAL(triggered()),this,SLOT(close())); //文件菜单 QMenu *fileMenu=menuBar()->addMenu(tr("文件")); fileMenu->addAction(addFileAction);//添加文件 fileMenu->addAction(addDirectoryAction);//添加目录 fileMenu->addSeparator();// fileMenu->addAction(openPlayListAction);//打开播放列表 fileMenu->addAction(savePlayListAction);//保存播放列表 fileMenu->addSeparator(); fileMenu->addAction(quitAction);//退出 playAction = new QAction(style()->standardIcon(QStyle::SP_MediaPlay), tr("播放"), this); playAction->setShortcut(tr("Ctrl+P")); playAction->setDisabled(true); pauseAction = new QAction(style()->standardIcon(QStyle::SP_MediaPause), tr("暂停"), this); pauseAction->setShortcut(tr("Ctrl+A")); pauseAction->setDisabled(true); stopAction = new QAction(style()->standardIcon(QStyle::SP_MediaStop), tr("停止"), this); stopAction->setShortcut(tr("Ctrl+H")); stopAction->setDisabled(true); nextAction = new QAction(style()->standardIcon(QStyle::SP_MediaSkipForward), tr("下一曲"), this); nextAction->setShortcut(tr("Ctrl+N")); previousAction = new QAction(style()->standardIcon(QStyle::SP_MediaSkipBackward), tr("上一曲"), this); previousAction->setShortcut(tr("Ctrl+R")); findAction = new QAction(style()->standardIcon(QStyle::SP_MediaSkipBackward), tr("网络服务"), this); findAction->setShortcut(tr("Ctrl+F")); connect(playAction, SIGNAL(triggered()), mediaObject, SLOT(play())); connect(pauseAction, SIGNAL(triggered()),mediaObject, SLOT(pause()) ); connect(stopAction, SIGNAL(triggered()), mediaObject, SLOT(stop())); connect(previousAction,SIGNAL(triggered()),this,SLOT(previous())); connect(nextAction,SIGNAL(triggered()),this,SLOT(next())); connect(findAction,SIGNAL(triggered()),this,SLOT(findSlot())); //控制菜单 QMenu *controlMenu=menuBar()->addMenu(tr("操作服务")); controlMenu->addAction(playAction);//播放 controlMenu->addAction(pauseAction);//暂停 controlMenu->addAction(stopAction);//停止 controlMenu->addAction(previousAction);//上一首 controlMenu->addAction(nextAction);//下一首 controlMenu->addAction(findAction);//网络服务 listPlayMode=new QAction(tr("列表播放"),this); listPlayMode->setCheckable(true); listPlayMode->setChecked(true); connect(listPlayMode,SIGNAL(triggered()),this,SLOT(listPlayModeCliked())); shuffleMode=new QAction(tr("随机播放"),this); connect(shuffleMode,SIGNAL(triggered()),this,SLOT(shuffleModeCliked())); oneLoopMode=new QAction(tr("单曲循环"),this); connect(oneLoopMode,SIGNAL(triggered()),this,SLOT(oneLoopModeCliked())); //播放模式控制菜单 QMenu *playModeMenu=menuBar()->addMenu(tr("播放模式")); playModeMenu->addAction(listPlayMode);//列表播放 playModeMenu->addAction(shuffleMode);//随机播放 playModeMenu->addAction(oneLoopMode);//单曲播放 //视图菜单 showTableListAction=new QAction(tr("显示播放列表"),this); showTableListAction->setShortcut(tr("Ctrl+T")); connect(showTableListAction,SIGNAL(triggered()),this,SLOT(showTableListClicked())); QMenu *viewMenu=menuBar()->addMenu(tr("视图")); viewMenu->addAction(showTableListAction); //关于菜单 aboutAction=new QAction(tr("关于"),this); aboutAction->setShortcut(tr("Ctrl+B")); aboutQtAction = new QAction(tr("关于开发软件QT"), this); aboutQtAction->setShortcut(tr("Ctrl+Q")); connect(aboutAction,SIGNAL(triggered()),this,SLOT(aboutActionClicked())); connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt())); QMenu *helpMenu=menuBar()->addMenu(tr("帮助")); helpMenu->addAction(aboutAction); helpMenu->addAction(aboutQtAction); QPalette palette; palette.setBrush(QPalette::Shadow,Qt::red); timeLcd = new QLCDNumber;//播放时间显示 timeLcd->setPalette(palette); timeLcd->display("00:00");//初始显示00:00 seekSlider = new Phonon::SeekSlider(this);//进度显示条 seekSlider->setMediaObject(mediaObject); QHBoxLayout *seekerLayout = new QHBoxLayout(); seekerLayout->addWidget(seekSlider); volumeSlider = new Phonon::VolumeSlider(this);//音量控制 volumeSlider->setAudioOutput(audioOutput); volumeSlider->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum); volumeSlider->setOrientation(Qt::Horizontal); QToolBar *toolbar=addToolBar("Music Player Control Toolbar");//工具栏 toolbar->addAction(playAction);//播放 toolbar->addAction(pauseAction);//暂停 toolbar->addAction(stopAction);//停止 toolbar->addAction(previousAction);//上一首 toolbar->addAction(nextAction);//下一首 toolbar->addAction(findAction);//查找 tableList=new QTableWidget(0,1); QStringList headers; headers << tr("序号") << tr("歌名"); tableList->setHorizontalHeaderLabels(headers); tableList->setColumnWidth(0,380*2); tableList->setSelectionMode(QAb