QT根据QTAv实现播放器

#include "widget.h"
#include "ui_widget.h"Widget::Widget(QWidget *parent): QWidget(parent), ui(new Ui::Widget){ui->setupUi(this);Widgets::registerRenderers();showList = false;timer = new QTimer(this);setObjectName("myWiget");setWindowTitle("播放器");setWindowIcon(QIcon(":/resources/myLogo.ico"));setStyleSheet("#myWiget{border-image:url(:/resources/backImg.png);}");setContentsMargins(0,0,0,0);resize(1280,720);//实例化布局this->vbox = new QVBoxLayout(this);// 上下排列布局vbox->setContentsMargins(0,0,0,0);// **********************************************************************************初始化管理栏***************this->hboxTop = new QHBoxLayout(this);hboxTop->setContentsMargins(0,0,0,0);bar = new QMenuBar();bar->setStyleSheet("margin: 2px 0;width:50px;background-color:rgba(0,0,0,0);color:white;");//透明背景色bar->setAutoFillBackground(false);bar->setMinimumWidth(70);bar->setMaximumWidth(70);// 一级菜单file = bar->addMenu("文件");
//    file->setStyleSheet("background-color:none;");//background-color:green;file->setMinimumWidth(150);file->setAutoFillBackground(false);QList<QAction*> list;QAction *action1=new QAction("打开文件");//QAction(QIcon(":/resource/image/向右箭头.jpg"),"action1");  可显示图标QAction *action2=new QAction("多个文件");QAction *action3=new QAction("打开文件夹");QAction *action4=new QAction("退出");list.append(action1);list.append(action2);list.append(action3);list.append(action4);file->addActions(list);
//    file->addMenu("打开文件");// 下级菜单hboxTop->addWidget(bar);fileVal = new QLabel();fileVal->setStyleSheet("color:white;");fileVal->setText("播放的文件名..........");fileVal->setAlignment(Qt::AlignCenter);// 文字 居中hboxTop->addWidget(fileVal);hideButton = new QPushButton();QPixmap pi = QPixmap(":/resources/hide.png");hideButton->setStyleSheet("background-color:rgba(0,0,0,0);");QIcon btnBack = QIcon(pi);hideButton->setIcon(btnBack);QSize s = QSize(50,25);hideButton->setIconSize(s);hideButton->setMaximumWidth(50);hboxTop->addWidget(hideButton);maxButton = new QPushButton();maxButton->setStyleSheet("background-color:rgba(0,0,0,0);");QPixmap maxpi = QPixmap(":/resources/maxPro.png");QIcon maxbtnBack = QIcon(maxpi);maxButton->setIcon(maxbtnBack);QSize s2 = QSize(50,25);maxButton->setIconSize(s2);maxButton->setMaximumWidth(50);maxButton->setMinimumWidth(50);hboxTop->addWidget(maxButton);closeButton = new QPushButton();
//    closeButton->setStyleSheet("background-color:rgba(0,0,0,0);");QPixmap closepi = QPixmap(":/resources/closePro.png");QIcon closebtnBack = QIcon(closepi);closeButton->setIcon(closebtnBack);QSize s3 = QSize(50,25);closeButton->setIconSize(s3);closeButton->setMaximumWidth(50);closeButton->setMinimumWidth(50);hboxTop->addWidget(closeButton);// **********************************************************************************初始化播放栏***************QWidget* video = new QWidget(this);// 使用wiget来实现大小自适应,QHBoxLayout只能被动的被子组件撑起来video->setContentsMargins(0,0,0,0);this->hboxVideo = new QHBoxLayout(this);hboxVideo->setContentsMargins(0,0,0,0);//实例化媒体播放器及视频播放mOut = new VideoOutput(this);;mPlayer = new AVPlayer(this);mPlayer->setRenderer(mOut);// 默认实时流 连接方式是UDP模式，可能出现丢包，卡顿等，改为tcp模式QHash<QString, QVariant> dict;dict.insert("rtsp_transport", "tcp");mPlayer->setOptionsForFormat(dict);// 开启解码加速mPlayer->setVideoDecoderPriority(QStringList() << "CUDA" << "D3D11" << "DXVA" << "FFmpeg");//"VAAPI"// 新增一个大小随显示屏走的button，且设置为透明的QVBoxLayout* gbox = new QVBoxLayout(mOut->widget());b2 = new QPushButton(this);QPixmap statpi2 = QPixmap(":/resources/stat2.png");QIcon statbtnBack2 = QIcon(statpi2);b2->setIcon(statbtnBack2);b2->setIconSize(QSize(0,0));b2->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);b2->setStyleSheet("background-color:rgba(0,0,0,0);");gbox->addWidget(b2);mOut->widget()->setLayout(gbox);hboxVideo->addWidget(mOut->widget());//    hboxVideo->setStretchFactor(videoWidget,1);// 设置该控件为可伸缩，其他控件自动设置为不可伸缩showListButton = new QPushButton(this);showListButton->setMaximumWidth(20);// 设置宽度固定，高度随父组件大小showListButton->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Expanding);showListButton->setStyleSheet("border-image:url(:/resources/showList.png);");hboxVideo->addWidget(showListButton);// 历史列表listWidget = new QListWidget(this);
//    listWidget->setStyleSheet("background-color:white;color:black;");listWidget->setMaximumWidth(270);listWidget->setMinimumWidth(270);hboxVideo->addWidget(listWidget);video->setLayout(hboxVideo);// **********************************************************************************初始化视频时间显示栏***************this->hboxVideoTime = new QHBoxLayout(this);hboxVideoTime->setContentsMargins(0,0,0,0);timeLable = new QLabel("00:00:00/00:00:00",this);timeLable->setStyleSheet("color:white;");//margin-bottom:3px;hboxVideoTime->addWidget(timeLable);// **********************************************************************************初始化视频进度条显示栏***************this->hboxVideoIndex = new QHBoxLayout(this);hboxVideoIndex->setContentsMargins(0,0,0,0);timeSlider = new QSlider(this);timeSlider->setContentsMargins(0,0,0,0);// groove表示槽的部分，handle表示滑块，add-page表示未滑过的槽部分,sub-page 表示已滑过的槽部分// 横向展示timeSlider->setOrientation(Qt::Horizontal);// VerticalQString timeSliderStr = "";//"margin:3px;background-color:white;";// 主体样式(样式中注意 horizontal 和 vertical)timeSliderStr += "QSlider{border-color: #bcbcbc;}QSlider::groove:horizontal {border: 1px solid #999999;height: 6px;""left: 5px; right: 5px;}";// 左右留出一定位置，这样进度键才能显示全// 滑块样式timeSliderStr.append("QSlider::handle:horizontal {border: 0px;border-image: url(:/resources/rate.png);""width: 13px;margin: 0px -7px 0px -7px;}");// 已划过槽的样式timeSliderStr.append("QSlider::sub-page:horizontal {background-color:#87CEEB;height: 8px;}");//padding: 2px 0;timeSlider->setStyleSheet(timeSliderStr);timeSlider->installEventFilter(this);// 重载eventFilter事件hboxVideoIndex->addWidget(timeSlider);// **********************************************************************************初始化视频操作显示栏***************this->hboxVideoWork = new QHBoxLayout(this);hboxVideoWork->setContentsMargins(0,0,0,0);// 布局：间隔/组件1/间隔/组件2hboxVideoWork->addStretch();btnLeft = new QLabel("    ");btnLeft->setStyleSheet("margin:0 0 5px 0;background-color:rgba(0,0,0,0);");hboxVideoWork->addWidget(btnLeft);hboxVideoWork->addStretch();backButton = new QPushButton();backButton->setStyleSheet("margin:0 0 5px 0;background-color:rgba(0,0,0,0);");QPixmap backpi = QPixmap(":/resources/back.png");QIcon backbtnBack = QIcon(backpi);backButton->setIcon(backbtnBack);QSize s4 = QSize(85,38);backButton->setIconSize(s4);backButton->setMaximumWidth(90);backButton->setMinimumWidth(90);backButton->setMinimumHeight(50);backButton->setMaximumHeight(50);hboxVideoWork->addWidget(backButton);lastButton = new QPushButton();lastButton->setStyleSheet("margin:0 0 5px 0;background-color:rgba(0,0,0,0);");QPixmap lastpi = QPixmap(":/resources/last.png");QIcon lastbtnBack = QIcon(lastpi);lastButton->setIcon(lastbtnBack);QSize s5 = QSize(85,38);lastButton->setIconSize(s5);lastButton->setMaximumWidth(90);lastButton->setMinimumWidth(90);lastButton->setMinimumHeight(50);lastButton->setMaximumHeight(50);hboxVideoWork->addWidget(lastButton);statButton = new QPushButton();statButton->setStyleSheet("margin:0 0 5px 0;background-color:rgba(0,0,0,0);");QPixmap statpi = QPixmap(":/resources/stat.png");statbtnBack = QIcon(statpi);QPixmap stoppi = QPixmap(":/resources/stop.png");stopbtnBack = QIcon(stoppi);statButton->setIcon(stopbtnBack);QSize s6 = QSize(110,45);statButton->setIconSize(s6);statButton->setMaximumWidth(90);statButton->setMinimumWidth(90);statButton->setMinimumHeight(60);statButton->setMaximumHeight(60);hboxVideoWork->addWidget(statButton);nextButton = new QPushButton();nextButton->setStyleSheet("margin:0 0 5px 0;background-color:rgba(0,0,0,0);");QPixmap nextpi = QPixmap(":/resources/next.png");QIcon nextbtnBack = QIcon(nextpi);nextButton->setIcon(nextbtnBack);QSize s7 = QSize(85,38);nextButton->setIconSize(s7);nextButton->setMaximumWidth(90);nextButton->setMinimumWidth(90);nextButton->setMinimumHeight(50);nextButton->setMaximumHeight(50);hboxVideoWork->addWidget(nextButton);upButton = new QPushButton();upButton->setStyleSheet("margin:0 0 5px 0;background-color:rgba(0,0,0,0);");QPixmap uppi = QPixmap(":/resources/up.png");QIcon upbtnBack = QIcon(uppi);upButton->setIcon(upbtnBack);upButton->setIconSize(QSize(85,38));upButton->setMaximumWidth(90);upButton->setMinimumWidth(90);upButton->setMinimumHeight(50);upButton->setMaximumHeight(50);hboxVideoWork->addWidget(upButton);hboxVideoWork->addStretch();// 倍速按钮boxBtn = new myBoxButton(this);boxBtn->setStyleSheet("margin:0 0 5px 0;background-color:rgba(0,0,0,0);color:white;");QStringList l;l<<"2.0x"<<"1.5x"<<"1.3x"<<"1.0x"<<"0.8x"<<"0.5x"<<"0.3x";boxBtn->addtextItems(l);boxBtn->setText("1.0x");hboxVideoWork->addWidget(boxBtn);// 音量按钮soundButton = new QPushButton();soundButton->setStyleSheet("margin:0 0 5px 0;background-color:rgba(0,0,0,0);");QPixmap soundpi = QPixmap(":/resources/sound.png");soundbtnBack = QIcon(soundpi);QPixmap unsoundpi = QPixmap(":/resources/unsound.png");unsoundbtnBack = QIcon(unsoundpi);soundButton->setIcon(soundbtnBack);soundButton->setIconSize(QSize(45,45));soundButton->setMaximumWidth(50);soundButton->setMinimumWidth(50);soundButton->setMinimumHeight(50);soundButton->setMaximumHeight(50);soundButton->installEventFilter(this);hboxVideoWork->addWidget(soundButton);volumeSlider = new myFloatSlider(this);// groove表示槽的部分，handle表示滑块，add-page表示未滑过的槽部分,sub-page 表示已滑过的槽部分// 纵向展示volumeSlider->setOrientation(Qt::Vertical);
//    volumeSlider->setInvertedAppearance(true);// 反向volumeSlider->installEventFilter(this);// 重载eventFilter事件volumeSlider->setRange(0,100);volumeSlider->setValue(100);volumeSlider->hide();// 最大化按钮tomaxButton = new QPushButton();tomaxButton->setStyleSheet("margin:0 0 5px 0;background-color:rgba(0,0,0,0);");QPixmap toMaxpi = QPixmap(":/resources/max.png");QIcon toMaxbtnBack = QIcon(toMaxpi);tomaxButton->setIcon(toMaxbtnBack);tomaxButton->setIconSize(QSize(70,40));tomaxButton->setMaximumWidth(60);tomaxButton->setMinimumWidth(60);tomaxButton->setMinimumHeight(50);tomaxButton->setMaximumHeight(50);hboxVideoWork->addWidget(tomaxButton);// 截图按钮cutButton = new QPushButton();cutButton->setStyleSheet("margin:0 0 5px 0;background-color:rgba(0,0,0,0);");QPixmap cutpi = QPixmap(":/resources/cut.png");QIcon cutbtnBack = QIcon(cutpi);cutButton->setIcon(cutbtnBack);cutButton->setIconSize(QSize(70,40));cutButton->setMaximumWidth(60);cutButton->setMinimumWidth(60);cutButton->setMinimumHeight(50);cutButton->setMaximumHeight(50);hboxVideoWork->addWidget(cutButton);// 添加一个label,使得btn不贴边btnRight = new QLabel("    ");btnRight->setStyleSheet("margin:0 0 5px 0;background-color:rgba(0,0,0,0);");hboxVideoWork->addWidget(btnRight);
//    hboxVideoWork->setAlignment(Qt::AlignCenter);// 所有组件居中,没有设置间隔的时候，如果要组件居中，可以用这个方式// 从上到下把横向容器放到竖向容器中vbox->addLayout(hboxTop);vbox->addWidget(video);vbox->addLayout(hboxVideoTime);vbox->addLayout(hboxVideoIndex);vbox->addLayout(hboxVideoWork);vbox->setStretchFactor(video,1);// 设置窗口的容器为竖向容器setLayout(this->vbox);connect(showListButton,SIGNAL(clicked()),this,SLOT(showListFc())); //绑定历史列表显隐事件connect(this->listWidget,SIGNAL(itemDoubleClicked(QListWidgetItem*)),this,SLOT(doubleClickPlay(QListWidgetItem*)));//历史列表双击事件connect(this->timer,SIGNAL(timeout()),this,SLOT(updateTime())); //显示已播放时间/总时间connect(this->mPlayer,SIGNAL(durationChanged(qint64)),this,SLOT(setTimeSlider(qint64)));// 总时长变化connect(b2,SIGNAL(clicked()),this,SLOT(playerClick()));// 屏幕点击connect(timeSlider,SIGNAL(valueChanged(int)),this,SLOT(timeChanged(int)));connect(volumeSlider,SIGNAL(valueChanged(int)),this,SLOT(volumeChanged(int)));connect(backButton,SIGNAL(clicked()),this,SLOT(backFc())); //回退事件connect(lastButton,SIGNAL(clicked()),this,SLOT(lastFc())); //上一个视频事件connect(statButton,SIGNAL(clicked()),this,SLOT(statFc())); //暂停/继续事件connect(nextButton,SIGNAL(clicked()),this,SLOT(nextFc())); //下一个视频事件connect(upButton,SIGNAL(clicked()),this,SLOT(upFc())); //快进事件connect(action1,SIGNAL(triggered()),this,SLOT(openFile())); //打开单个文件事件connect(action2,SIGNAL(triggered()),this,SLOT(openFiles())); //打开多个文件事件connect(action3,SIGNAL(triggered()),this,SLOT(openDir())); //打开文件夹事件connect(action4,SIGNAL(triggered()),this,SLOT(closePro())); //退出进程事件connect(soundButton,SIGNAL(clicked()),this,SLOT(openOrCloseVolume())); //开启或关闭音量connect(tomaxButton,SIGNAL(clicked()),this,SLOT(tomax())); //开启或关闭音量connect(hideButton,SIGNAL(clicked()),this,SLOT(hidePro())); //最小化按钮connect(maxButton,SIGNAL(clicked()),this,SLOT(maxPro())); //程序最大化按钮connect(closeButton,SIGNAL(clicked()),this,SLOT(closePro())); //退出进程按钮connect(cutButton,SIGNAL(clicked()),this,SLOT(cutPro())); // 截屏按钮connect(mPlayer->videoCapture(), SIGNAL(imageCaptured(QImage)), SLOT(saveImage(QImage)));//视频图片抓取成功信号connect(boxBtn,SIGNAL(currentTextChanged(QString)),this,SLOT(selectSpeed(QString)));// 倍速切换事件// 初始化历史列表showListFc();// 支持悬浮setAttribute(Qt::WA_Hover);// 支持键盘事件setFocusPolicy(Qt::StrongFocus);// 每0.5s更新一次时间进度timer->start(700);// 接收文件放下事件setAcceptDrops(true);// 初始化和加载文件地址data = new QFile(QApplication::applicationDirPath() + "/data");if(data->open(QIODevice::ReadWrite|QIODevice::Text)){QTextCodec *codec = QTextCodec::codecForName("GBK");QByteArray datas = data->readAll();oldStr = codec->toUnicode(datas);//QString(datas);QJsonParseError jsonError;QJsonDocument jspnDoc = QJsonDocument::fromJson(oldStr.toStdString().c_str(),&jsonError);if (jspnDoc.isEmpty() || (jsonError.error != QJsonParseError::NoError)) {qDebug()<<"文件内容json反转失败!清空文件数据.....";nowVolume = 100;data->close();}else{QJsonObject jsonObj = jspnDoc.object();li = jsonObj.value("list").toArray();nowVolume = jsonObj.value("volume").toInt();volumeSlider->setValue(nowVolume);mPlayer->audio()->setVolume(nowVolume/100.0);for(int i=0;i<li.size();i++){QJsonObject fileInfo = li.at(i).toObject();QString url = fileInfo.value("url").toString();int nameIndex = url.lastIndexOf("/");if(nameIndex == -1){nameIndex = url.lastIndexOf("\\");}QString name = url.mid(nameIndex+1);QListWidgetItem *item = new QListWidgetItem(name,listWidget);item->setData(Qt::ToolTipRole,url);item->setText(name);
//                listWidget->addItem(item);QWidget *w = new QWidget(listWidget);QHBoxLayout *layout=new QHBoxLayout(w);layout->setAlignment(Qt::AlignRight);QPushButton *pushButton=new QPushButton("x",w);pushButton->setMaximumWidth(20);pushButton->setMinimumWidth(20);pushButton->setMinimumHeight(20);pushButton->setMaximumHeight(20);layout->addStretch();layout->addWidget(pushButton);item->setSizeHint(QSize(20,35));w->show();w->setLayout(layout);listWidget->setItemWidget(item,w);widgetItemMap[pushButton] = item;connect(pushButton,SIGNAL(clicked()),this,SLOT(delItem())); //删除项}data->close();}}else{qDebug()<<"创建文件失败!!";}
}Widget::~Widget(){saveData();timer->stop();
//    mPlayer->stop();
//    delete mPlayer;delete ui;
}
void Widget::dropEvent(QDropEvent *e){int first = true;foreach (const QUrl &url, e->mimeData()->urls()){//加载视频文件QString urlStr = url.url();if(first){first = false;mPlayer->play(urlStr);}if(urlStr.endsWith(".mkv") || urlStr.endsWith(".mp4")|| urlStr.endsWith(".mp3") || urlStr.endsWith(".avi")){if(oldStr.contains(urlStr)){continue;}oldStr.append(";"+urlStr);int nameIndex = urlStr.lastIndexOf("/");QString name = urlStr.mid(nameIndex+1);QListWidgetItem *item = new QListWidgetItem(name,this->listWidget);item->setData(Qt::ToolTipRole,urlStr);item->setText(name);fileVal->setText(name);QWidget *w = new QWidget(listWidget);QHBoxLayout *layout=new QHBoxLayout(w);layout->setAlignment(Qt::AlignRight);QPushButton *pushButton=new QPushButton("x",w);pushButton->setMaximumWidth(20);pushButton->setMinimumWidth(20);pushButton->setMinimumHeight(20);pushButton->setMaximumHeight(20);layout->addStretch();layout->addWidget(pushButton);item->setSizeHint(QSize(20,35));w->show();w->setLayout(layout);listWidget->setItemWidget(item,w);widgetItemMap[pushButton] = item;connect(pushButton,SIGNAL(clicked()),this,SLOT(delItem())); //删除项QJsonObject fileInfoObj;fileInfoObj.insert("url",urlStr);li.append(fileInfoObj);}}
}
void Widget::dragEnterEvent(QDragEnterEvent *e){if (e->mimeData()->hasUrls()){e->acceptProposedAction();}
}void Widget::delItem(){QObject* widget = sender();if(widget->inherits("QPushButton")){// 判断类型QPushButton* btn = static_cast<QPushButton*>(widget);QObject* p = btn->parent();QListWidgetItem* item = widgetItemMap[btn];oldStr.replace(item->toolTip(),"");for(int i=0;i<li.size();i++){QJsonValue v = li[i];if(v.toObject().value("url") == item->toolTip()){li.removeAt(i);break;}}QJsonObject dataJson;dataJson.insert("list",li);if(data->open(QIODevice::ReadWrite|QIODevice::Text | QIODevice::Truncate)){QJsonDocument doc(dataJson);QString strRet = QString(doc.toJson(QJsonDocument::Indented));QTextStream ins(data);ins<<strRet<<endl;data->close();}delete btn;delete item;widgetItemMap.remove(btn);}else{qDebug()<<":is not QPushButton=";}
}void Widget::showListFc(){if(!showList){showList = true;listWidget->show();showListButton->setStyleSheet("border-image:url(:/resources/hideList.png);");}else{showList = false;listWidget->hide();showListButton->setStyleSheet("border-image:url(:/resources/showList.png);");}
}void Widget::doubleClickPlay(QListWidgetItem *item){/** 1、获取listWidget中下标位置* 2、设置媒体源、播放选中的歌曲* 3、修改名字* 4、修改图标* 5、定时器启动*/int inde = this->listWidget->currentRow(); //获取当前下标QString url = item->data(Qt::ToolTipRole).toString();fileVal->setText(item->text());mPlayer->play(url);
}void Widget::updateTime(){if(mPlayer->state() == AVPlayer::State::PlayingState || mPlayer->state() == AVPlayer::State::PausedState){// 播放或暂停状态//获取总时间跟当前播放时长qint64 dur = this->mPlayer->duration();qint64 pos = this->mPlayer->position();//实例化两个对象，用来显示QTime durTime(0,0,0);QTime posTime(0,0,0);this->timeLable->setText(posTime.addMSecs(int(pos)).toString("HH:mm:ss") + "/" + durTime.addMSecs(int(dur)).toString("HH:mm:ss"));timeSlider->setValue(pos);}
}void Widget::setTimeSlider(qint64 duration){this->timeSlider->setRange(0,int(duration));
}
void Widget::videoPosChange(qint64 duration){timeSlider->setValue(duration);mPlayer->setPosition(duration);
}
void Widget::timeChanged(int value){
}
void Widget::volumeChanged(int value){volumeSlider->setValue(value);if(mPlayer->state() == AVPlayer::State::PlayingState || mPlayer->state() == AVPlayer::State::PausedState){// 范围：0-1mPlayer->audio()->setVolume(value/100.0);}nowVolume = value;
}bool Widget::eventFilter(QObject *obj, QEvent *e){if (e->type() == QEvent::MouseButtonPress && obj == this->timeSlider){timeSliderClick(obj, e);// 这里不能返回true，不然按住滑块的拖动事件就终止了
//        return true;}else if(e->type() == QEvent::MouseButtonPress && obj == this->volumeSlider){volumeSliderClick(obj, e);}else if(e->type() == QEvent::HoverEnter && obj == this->soundButton){QPushButton* soundBtn = static_cast<QPushButton*>(obj);int x = soundBtn->x();int y = soundBtn->y();
//        if(volumeSlider->isHidden()){volumeSlider->show();volumeSlider->move(x,y-250);volumeSlider->resize(40,270);
//        }inVolumeSlider = false;return false;}else if(e->type() == QEvent::HoverLeave && obj == this->soundButton){// 异步QtConcurrent::run([=](){QThread::sleep(1);// 一秒后确认是否已进入音量滑动条，没有的话则隐藏音量滑动条if(!inVolumeSlider){volumeSlider->hide();}});}else if(e->type() == QEvent::HoverEnter && obj == this->volumeSlider){inVolumeSlider = true;volumeSlider->show();}else if(e->type() == QEvent::HoverLeave && obj == this->volumeSlider){inVolumeSlider = false;volumeSlider->hide();}return QWidget::eventFilter(obj, e);//返回默认的事件过滤器
}
void Widget::paintEvent(QPaintEvent* event){QStyleOption opt;opt.initFrom(this);QPainter p(this);style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
}void Widget::volumeSliderClick(QObject *slider, QEvent *event){QSlider* sliderCtrl = static_cast<QSlider*>(slider);QMouseEvent* mouseEvent = static_cast<QMouseEvent*>(event);if (Qt::LeftButton == mouseEvent->button()){int mxpos = 0;  // 鼠标按下的位置int cxwnd = 0;// 滑槽长度int cxctl = 0;// 滑块宽度// 竖向进度条cxctl = sliderCtrl->minimumSizeHint().height();  // 滑块宽度cxwnd = sliderCtrl->height();if (sliderCtrl->invertedAppearance()){mxpos = mouseEvent->y();}else{mxpos = cxwnd - mouseEvent->y();}// 计算结果，并设置新计算得到的 position 值int scpos = sliderCtrl->minimum() +(int)((sliderCtrl->maximum() - sliderCtrl->minimum()) *((mxpos - cxctl / 2.0) / (cxwnd - cxctl)));if(sliderCtrl->sliderPosition() != scpos){sliderCtrl->setSliderPosition(scpos);mPlayer->audio()->setVolume(scpos/100.0);}if(sliderCtrl->value() <= 0){soundButton->setIcon(unsoundbtnBack);}else{soundButton->setIcon(soundbtnBack);}}
}
void Widget::timeSliderClick(QObject *slider, QEvent *event){QSlider* sliderCtrl = static_cast<QSlider*>(slider);QMouseEvent* mouseEvent = static_cast<QMouseEvent*>(event);// mouseEvent的x(),y() 可得知鼠标事件指针相对当前窗口的位置; (globalX()、globalY() 返回的是全局坐标)if (Qt::LeftButton == mouseEvent->button()){int mxpos = 0;  // 鼠标按下的位置int cxwnd = 0;// 滑槽长度int cxctl = 0;// 滑块宽度if (Qt::Horizontal == sliderCtrl->orientation()){// 横向进度条cxwnd = sliderCtrl->width();if (sliderCtrl->invertedAppearance()){// 判断进度条是否反转类型(即最大最小值相反)mxpos = cxwnd - mouseEvent->x();}else{mxpos = mouseEvent->x();}}else{// 竖向进度条cxctl = sliderCtrl->minimumSizeHint().height();  // 滑块宽度cxwnd = sliderCtrl->height();if (sliderCtrl->invertedAppearance()){mxpos = mouseEvent->y();}else{mxpos = cxwnd - mouseEvent->y();}}// 计算结果，并设置新计算得到的 position 值int scpos = sliderCtrl->minimum() +(int)((sliderCtrl->maximum() - sliderCtrl->minimum()) *((mxpos - cxctl / 2.0) / (cxwnd - cxctl)));if(sliderCtrl->sliderPosition() != scpos){sliderCtrl->setSliderPosition(scpos);mPlayer->setPosition(scpos);}}
}void Widget::backFc(){// 获取当前播放时长qint64 pos = this->mPlayer->position();long long time = QDateTime::currentDateTime().toMSecsSinceEpoch();// 获取时间戳if(time > leatFreTime + 1500){// 上次快退间隔超过5秒，则一级快退freLevel = 0;}else{freLevel ++;if(freLevel > 2){freLevel = 2;}}if(pos <= 5000+10000*freLevel){// 回退到最初mPlayer->setPosition(0);}else{mPlayer->setPosition(pos - (5000+10000*freLevel));}leatFreTime = time;
}void Widget::lastFc(){int num = listWidget->count();if(num <= 0){return;}QListWidgetItem* item = NULL;if(num == 1){item = listWidget->item(0);}else{int nowFileIndex = -1;QString nowName = fileVal->text();for(int i=0;i<num;i++){QListWidgetItem* pItem = listWidget->item(i);if(pItem->text() == nowName){nowFileIndex = i-1;break;}}if(nowFileIndex == -1 || nowFileIndex >= num){nowFileIndex = 0;}item = listWidget->item(nowFileIndex);}if(item != NULL){fileVal->setText(item->text());item->setSelected(true);}
}
void Widget::statFc(){int state = this->mPlayer->state();if(state == AVPlayer::State::PlayingState){// 暂停，修改图标mPlayer->pause(!mPlayer->isPaused());b2->setIconSize(QSize(150,75));statButton->setIcon(statbtnBack);}else if(state == AVPlayer::State::PausedState){// 继续播放,修改图标mPlayer->pause(!mPlayer->isPaused());b2->setIconSize(QSize(0,0));statButton->setIcon(stopbtnBack);}}
void Widget::openOrCloseVolume(){int num = volumeSlider->value();if(num <= 0){volumeSlider->setValue(oldVolume);soundButton->setIcon(soundbtnBack);}else{oldVolume = num;volumeSlider->setValue(0);soundButton->setIcon(unsoundbtnBack);}
}
void Widget::nextFc(){int num = listWidget->count();if(num <= 0){return;}QListWidgetItem* item = NULL;if(num == 1){item = listWidget->item(0);}else{int nowFileIndex = -1;QString nowName = fileVal->text();for(int i=0;i<num;i++){QListWidgetItem* pItem = listWidget->item(i);if(pItem->text() == nowName){nowFileIndex = i+1;break;}}if(nowFileIndex == -1 || nowFileIndex >= num){nowFileIndex = 0;}item = listWidget->item(nowFileIndex);}if(item != NULL){fileVal->setText(item->text());item->setSelected(true);
//        item->setCheckState(Qt::Checked);//Qt::Unchecked}
}
void Widget::upFc(){// 获取当前播放时长qint64 pos = this->mPlayer->position();// 获取总时长qint64 all = this->mPlayer->duration();long long time = QDateTime::currentDateTime().toMSecsSinceEpoch();// 获取时间戳if(time > leatFreTime + 1500){// 上次快进间隔超过5秒，则一级快退freLevel = 0;}else{freLevel ++;if(freLevel > 2){freLevel = 2;}}if(pos + 5000+10000*freLevel >= all){// 快进到结束mPlayer->setPosition(all);}else{mPlayer->setPosition(pos + (5000+10000*freLevel));}leatFreTime = time;
}
void Widget::openFile(){QString url = QFileDialog::getOpenFileName(this,"选择文件","/","音频(*.mkv *.mp4 *.mp3 *.avi)");// 父组件,标题,初始目录,文件过滤器if(url.isEmpty()){return;}int nameIndex = url.lastIndexOf("/");QString name = url.mid(nameIndex+1);fileVal->setText(name);mPlayer->play(url);if(!oldStr.contains(url)){qDebug()<<"oldStr....."<<oldStr<<";url="<<url;QListWidgetItem *item = new QListWidgetItem(name,this->listWidget);item->setData(Qt::ToolTipRole,url);item->setText(name);QWidget *w = new QWidget(listWidget);QHBoxLayout *layout=new QHBoxLayout(w);layout->setAlignment(Qt::AlignRight);QPushButton *pushButton=new QPushButton("x",w);pushButton->setMaximumWidth(20);pushButton->setMinimumWidth(20);pushButton->setMinimumHeight(20);pushButton->setMaximumHeight(20);layout->addStretch();layout->addWidget(pushButton);item->setSizeHint(QSize(20,35));w->show();w->setLayout(layout);listWidget->setItemWidget(item,w);widgetItemMap[pushButton] = item;connect(pushButton,SIGNAL(clicked()),this,SLOT(delItem())); //删除项
//        listWidget->addItem(item);QJsonObject fileInfo;fileInfo.insert("url",url);li.append(fileInfo);saveData();oldStr.append(";"+url);item->setSelected(true);}}void Widget::saveData(){QJsonObject dataJson;dataJson.insert("list",li);dataJson.insert("volume",nowVolume);if(data->open(QIODevice::ReadWrite|QIODevice::Text | QIODevice::Truncate)){QJsonDocument doc(dataJson);QString strRet = QString(doc.toJson(QJsonDocument::Indented));QTextStream ins(data);ins<<strRet<<endl;data->close();}
}
void Widget::openFiles(){QStringList urlList = QFileDialog::getOpenFileNames(this,"选择文件","/","音频(*.mkv *.mp4 *.mp3 *.avi)");//Image Files(*.jpg *.png);;MP4(*.mp4)if(urlList.size() == 0){return;}for(int i = 0;i < urlList.size();i++){int nameIndex = urlList.at(i).lastIndexOf("/");QString name = urlList.at(i).mid(nameIndex+1);fileVal->setText(name);if(i==0){mPlayer->play(urlList.at(i));}if(!oldStr.contains(urlList.at(i))){oldStr.append(";"+urlList.at(i));QListWidgetItem *item = new QListWidgetItem(name,this->listWidget);item->setData(Qt::ToolTipRole,urlList.at(i));item->setText(name);QWidget *w = new QWidget(listWidget);QHBoxLayout *layout=new QHBoxLayout(w);layout->setAlignment(Qt::AlignRight);QPushButton *pushButton=new QPushButton("x",w);pushButton->setMaximumWidth(20);pushButton->setMinimumWidth(20);pushButton->setMinimumHeight(20);pushButton->setMaximumHeight(20);layout->addStretch();layout->addWidget(pushButton);item->setSizeHint(QSize(20,35));w->show();w->setLayout(layout);listWidget->setItemWidget(item,w);widgetItemMap[pushButton] = item;connect(pushButton,SIGNAL(clicked()),this,SLOT(delItem())); //删除项
//            listWidget->addItem(item);QJsonObject fileInfo;fileInfo.insert("url",urlList.at(i));li.append(fileInfo);saveData();}}
}
void Widget::openDir(){QString dirUrl = QFileDialog::getExistingDirectory(this,"选择文件夹","/");if(dirUrl.isEmpty()){return;}QDir dir;dir.setFilter(QDir::Files | QDir::Hidden | QDir::Dirs);dir.setSorting(QDir::Size | QDir::Reversed);dir.setPath(dirUrl);int oldNum = li.size();readDir(dir);if(li.size() > oldNum){// 数据落地saveData();}
}void Widget::closePro(){QApplication* app;app->quit();
}void Widget::cutPro(){if(mPlayer->state() == AVPlayer::State::PlayingState || mPlayer->state() == AVPlayer::State::PausedState){// 不自动保存mPlayer->videoCapture()->setAutoSave(false);QDir d;if(d.mkpath(QApplication::applicationDirPath()+"/cutData")){mPlayer->videoCapture()->setCaptureDir(QApplication::applicationDirPath()+"/cutData");mPlayer->videoCapture()->capture();}}
}void Widget::saveImage(QImage img){QString timeStr = QDateTime::currentDateTime().toString("yyyyMMddHHmmss");// 100: 质量因数，0~100或-1,100表示大型未压缩img.save(QApplication::applicationDirPath()+"/cutData/"+timeStr+".jpg","JPG",100);
}void Widget::playerClick(){int state = this->mPlayer->state();if(state == AVPlayer::State::PlayingState){// 暂停，修改图标mPlayer->pause(!mPlayer->isPaused());b2->setIconSize(QSize(150,75));statButton->setIcon(statbtnBack);}else if(state == AVPlayer::State::PausedState){// 继续播放,修改图标mPlayer->pause(!mPlayer->isPaused());b2->setIconSize(QSize(0,0));statButton->setIcon(stopbtnBack);}
}void Widget::readDir(QDir dir){QFileInfoList list = dir.entryInfoList();for (int i = 0; i < list.size(); ++i) {if(list.at(i).isDir()){// 目录if(!list.at(i).filePath().endsWith(".")){QDir loadDir(list.at(i).filePath());if(loadDir.exists()){loadDir.setFilter(QDir::Files | QDir::NoSymLinks | QDir::Dirs);readDir(loadDir);}}}else{// 文件QFileInfo fileInfo = list.at(i);if(fileInfo.filePath().endsWith(".mkv") || fileInfo.filePath().endsWith(".mp4")|| fileInfo.filePath().endsWith(".mp3") || fileInfo.filePath().endsWith(".avi")){if(oldStr.contains(fileInfo.filePath())){continue;}oldStr.append(";"+fileInfo.filePath());int nameIndex = fileInfo.filePath().lastIndexOf("/");QString name = fileInfo.filePath().mid(nameIndex+1);QListWidgetItem *item = new QListWidgetItem(name,this->listWidget);item->setData(Qt::ToolTipRole,fileInfo.filePath());item->setText(name);QWidget *w = new QWidget(listWidget);QHBoxLayout *layout=new QHBoxLayout(w);layout->setAlignment(Qt::AlignRight);QPushButton *pushButton=new QPushButton("x",w);pushButton->setMaximumWidth(20);pushButton->setMinimumWidth(20);pushButton->setMinimumHeight(20);pushButton->setMaximumHeight(20);layout->addStretch();layout->addWidget(pushButton);item->setSizeHint(QSize(20,35));w->show();w->setLayout(layout);listWidget->setItemWidget(item,w);widgetItemMap[pushButton] = item;connect(pushButton,SIGNAL(clicked()),this,SLOT(delItem())); //删除项QJsonObject fileInfoObj;fileInfoObj.insert("url",fileInfo.filePath());li.append(fileInfoObj);}
//            qDebug() << qPrintable(QString("%1").arg(fileInfo.size(), 10))<<";;;;;;;;path="<<fileInfo.filePath();}}
}
void Widget::keyPressEvent(QKeyEvent *event){if(event->key()==Qt::Key_Left){if(!event->isAutoRepeat()){backFc();}}if(event->key()==Qt::Key_Right){if(!event->isAutoRepeat()){upFc();}}if(event->key()==Qt::Key_Up){addVolume();}if(event->key()==Qt::Key_Down){subVolume();}if(event->key()==Qt::Key_Escape){fileVal->show();hideButton->show();maxButton->show();closeButton->show();backButton->show();lastButton->show();statButton->show();nextButton->show();upButton->show();tomaxButton->show();timeSlider->show();timeLable->show();soundButton->show();bar->show();btnRight->show();btnLeft->show();boxBtn->show();cutButton->show();}
}void Widget::subVolume(){int num = volumeSlider->value();if(num <= 0){soundButton->setIcon(soundbtnBack);return;}num -= 15;if(num <= 0){num = 0;}nowVolume = num;volumeSlider->setValue(num);mPlayer->audio()->setVolume(num/100.0);
}void Widget::addVolume(){int num = volumeSlider->value();if(num <= 0){soundButton->setIcon(soundbtnBack);}if(num >= 100){return;}num += 15;if(num > 100){num = 100;}nowVolume = num;volumeSlider->setValue(num);mPlayer->audio()->setVolume(num/100.0);
}void Widget::tomax(){setWindowState(Qt::WindowMaximized);fileVal->hide();hideButton->hide();maxButton->hide();closeButton->hide();backButton->hide();lastButton->hide();statButton->hide();nextButton->hide();upButton->hide();tomaxButton->hide();volumeSlider->hide();timeSlider->hide();timeLable->hide();soundButton->hide();bar->hide();btnRight->hide();btnLeft->hide();boxBtn->hide();cutButton->hide();showList = false;listWidget->hide();showListButton->setStyleSheet("border-image:url(:/resources/hideList.png);");
}void Widget::hidePro(){setWindowState(Qt::WindowMinimized);
}void Widget::maxPro(){setWindowState(Qt::WindowMaximized);
}void Widget::filePlay(QString url){if(url.endsWith(".mkv") || url.endsWith(".mp4")|| url.endsWith(".mp3") || url.endsWith(".avi")){int nameIndex = url.lastIndexOf("\\");QString name = url.mid(nameIndex+1);fileVal->setText(name);mPlayer->play(url);if(!oldStr.contains(url) && !oldStr.contains(name)){QListWidgetItem *item = new QListWidgetItem(name,this->listWidget);item->setData(Qt::ToolTipRole,url);item->setText(name);QWidget *w = new QWidget(listWidget);QHBoxLayout *layout=new QHBoxLayout(w);layout->setAlignment(Qt::AlignRight);QPushButton *pushButton=new QPushButton("x",w);pushButton->setMaximumWidth(20);pushButton->setMinimumWidth(20);pushButton->setMinimumHeight(20);pushButton->setMaximumHeight(20);layout->addStretch();layout->addWidget(pushButton);item->setSizeHint(QSize(20,35));w->show();w->setLayout(layout);listWidget->setItemWidget(item,w);widgetItemMap[pushButton] = item;connect(pushButton,SIGNAL(clicked()),this,SLOT(delItem())); //删除项QJsonObject fileInfo;fileInfo.insert("url",url);li.append(fileInfo);saveData();oldStr.append(";"+url);item->setSelected(true);}}
}
void Widget::selectSpeed(QString sp){QString s= sp.replace("x","");speed = s.toDouble();mPlayer->setSpeed(speed);
}