QT 媒体播放器

 

可以全屏，解决布局问题，时间进度可以显示..代码尽量简单,基本完美,注需要解码包

 

 如果需要QT 基于mplayer媒体播放器 :http://blog.youkuaiyun.com/buafnlin/archive/2011/02/04/6172415.aspx

 

 

 

 

MAINWINDOW.cpp

 

#include "mainwindow.h"

#include "ui_mainwindow.h"

#include <QtCore/QSettings>

#include <QtCore/QTimer>

#include <QtGui/QAction>

#include <QtGui/QApplication>

#include <QtGui/QBitmap>

#include <QtGui/QLinearGradient>

#include <QtGui/QMouseEvent>

#include <QtGui/QPainter>

#include <QMessageBox>

#include <QKeyEvent>

#include <QSound>

#include "QFileDialog"

#include "qDebug"

#include "phonon"

#include "QLabel"

#include <QVBoxLayout>

#include <QHBoxLayout>

#include  <QWidget>

#include "phonon/VideoWidget"

#include "QTime"

#include <QDockWidget>

#include <QAction>

MainWindow::MainWindow(QWidget *parent) :

    QMainWindow(parent),

    ui(new Ui::MainWindow)

{

    ui->setupUi(this);

    ui->widget->installEventFilter(this);

    media = new Phonon::MediaObject;

    //media->setCurrentSource(Phonon::MediaSource("../Puppet.mpg"));

     w1=new QWidget(this);

        w3=new QWidget(this);

        timeLcd=new  QLCDNumber(this);

    vwidget = new Phonon::VideoWidget(w1);

    Phonon::createPath(media, vwidget);

    vwidget->setAspectRatio(Phonon::VideoWidget::AspectRatioAuto);

    aOutput = new Phonon::AudioOutput(Phonon::VideoCategory);

    Phonon::createPath(media, aOutput);

//    QLabel *l1 = new QLabel(QString::fromLocal8Bit("播放进度: "));

//    QLabel *l2 = new QLabel(QString::fromLocal8Bit("音量: "));

    volumeSlider = new Phonon::VolumeSlider;

    volumeSlider->setAudioOutput(aOutput);

    volumeSlider->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum);

    Phonon::SeekSlider *seekSlider = new Phonon::SeekSlider;

    seekSlider->setMediaObject(media);

       timeLcd->display("00:00");

    QVBoxLayout *vLayout = new QVBoxLayout;

    vLayout->addWidget(vwidget);

   vwidget->resize(1024,768);

    w1->setLayout(vLayout);

//     QHBoxLayout *h1=new QHBoxLayout;

//     h1->addWidget(l1);

//     h1->addWidget(seekSlider);

//     h1->addWidget(timeLcd);

//     QHBoxLayout *h2=new QHBoxLayout;

//     h2->addWidget(l2);

//     h2->addWidget(volumeSlider);

//     h2->addWidget(ui->widget_4);

//    QVBoxLayout *vLayout1 = new QVBoxLayout;

//    vLayout1->addLayout(h1);

//        vLayout1->addLayout(h2);

//    w3->setLayout(vLayout1);

// QHBoxLayout *hLayout1= new QHBoxLayout;

// hLayout1->addWidget(w3);

//  QVBoxLayout *vLayout3= new QVBoxLayout;

// vLayout3->addWidget(w1);

//vLayout3->addLayout(hLayout1);

   //vLayout3->addWidget(ui->widget_4);

//  w2=new QWidget(this);

//  w2->setLayout(vLayout3);

this->setCentralWidget(w1);

QDockWidget *shapesDockWidget1 = new QDockWidget(QString::fromLocal8Bit("播放进度"));

shapesDockWidget1->setWidget(seekSlider);

//shapesDockWidget1->setLayout(h2);

//shapesDockWidget->setAllowedAreas(Qt::LeftDockWidgetArea

//                                  | Qt::RightDockWidgetArea);

addDockWidget(Qt::BottomDockWidgetArea, shapesDockWidget1);

QDockWidget *shapesDockWidget2 = new QDockWidget(QString::fromLocal8Bit("播放时间"));

shapesDockWidget2->setWidget(timeLcd);

shapesDockWidget2->setMaximumSize(100,100);

//shapesDockWidget1->setLayout(h2);

//shapesDockWidget->setAllowedAreas(Qt::LeftDockWidgetArea

//                                  | Qt::RightDockWidgetArea);

addDockWidget(Qt::BottomDockWidgetArea, shapesDockWidget2);

QDockWidget *shapesDockWidget3 = new QDockWidget(QString::fromLocal8Bit("播放界面"));

shapesDockWidget3->setWidget(ui->widget_4);

//shapesDockWidget1->setLayout(h2);

//shapesDockWidget->setAllowedAreas(Qt::LeftDockWidgetArea

//                                  | Qt::RightDockWidgetArea);

//addDockWidget(Qt::RightDockWidgetArea, shapesDockWidget3);

addDockWidget(Qt::BottomDockWidgetArea, shapesDockWidget3);

QDockWidget *shapesDockWidget = new QDockWidget(QString::fromLocal8Bit("音量"));

shapesDockWidget->setWidget(volumeSlider);

//shapesDockWidget->setAllowedAreas(Qt::LeftDockWidgetArea

//                                  | Qt::RightDockWidgetArea);

addDockWidget(Qt::BottomDockWidgetArea, shapesDockWidget);

ui->pushButton_5->setEnabled(false);

   ui->pushButton_7->setEnabled(false);

//      QAction *at = new QAction("退出全屏", vwidget);

//   vwidget->addAction(at);

//     vwidget->setAcceptDrops(true);

//     at->setShortcuts(QList<QKeySequence>() << QKeySequence(Qt::Key_Escape) << QKeySequence(Qt::Key_MediaStop));

//  connect(at, SIGNAL(triggered()), vwidget, SLOT(exitFullScreen()));

      QAction *at1 = new QAction("退出全屏", vwidget);

     vwidget->addAction(at1);

     vwidget->setAcceptDrops(true);

     at1->setShortcuts(QList<QKeySequence>() << QKeySequence(Qt::CTRL+Qt::Key_Return)<< QKeySequence(Qt::Key_MediaStop));

     connect(at1, SIGNAL(triggered()), vwidget,SLOT(exitFullScreen()));

connect(media, SIGNAL(tick(qint64)), this, SLOT(tick(qint64)));

  readSettings();

}

MainWindow::~MainWindow()

{

    delete ui;

}

void MainWindow::resizeEvent(QResizeEvent*)

{

//    QBitmap maskBitmap(width(), height());

//    maskBitmap.clear();

//    QPainter p(&maskBitmap);

//    p.setBrush(Qt::black);

//    p.drawRoundRect(0, 0, width(), height(), 2, 4);

//    p.end();

//    setMask(maskBitmap);

}

void MainWindow::mouseMoveEvent(QMouseEvent *event)

{

//    if (event->buttons() & Qt::LeftButton  ) {

//       // move(event->globalPos() - m_dragPosition);

//   move(event->globalPos() - m_dragPosition);

//        event->accept();

//    }

}

void MainWindow::mousePressEvent(QMouseEvent *event)

{

//   if (event->button() == Qt::LeftButton) {

//  m_dragPosition = event->globalPos() - frameGeometry().topLeft();

////m_dragPosition = event->globalPos() - frameGeometry().topLeft();

////      // ui->widget->move(m_dragPosition);

//       event->accept();

//}

}

void MainWindow::on_pushButton_2_clicked()

{

    this->close();

}

void MainWindow::on_pushButton_3_clicked()

{

    this->showMinimized();

}

bool MainWindow::eventFilter(QObject *obj, QEvent *event)

{

    if (obj == ui->widget) {

       if (event->type() == QEvent::MouseButtonPress)  {

           QMouseEvent *ev = static_cast<QMouseEvent *>(event);

                             if (ev->buttons() & Qt::LeftButton)

                         {

                                 m_dragPosition = ev->globalPos() - frameGeometry().topLeft();

                                      ev->accept();

                             }

            return true;

        } else if (event->type() == QEvent::MouseMove){

            QMouseEvent *ev = static_cast<QMouseEvent *>(event);

            if (ev->buttons() & Qt::LeftButton  ) {

               // move(event->globalPos() - m_dragPosition);

           move(ev->globalPos() - m_dragPosition);

                ev->accept();

            }

    }

else {

            return false;

        }

    }

    else if (obj ==  w1)

    {

        if (event->type() == QEvent::MouseButtonPress)  {

            QMouseEvent *ev = static_cast<QMouseEvent *>(event);

                              if (ev->buttons() & Qt::LeftButton)

                          {

                                  vwidget = new Phonon::VideoWidget(this);

                                   vwidget->setAspectRatio(Phonon::VideoWidget::AspectRatioAuto);

                                       vwidget->exitFullScreen();

                              }

    }

    }

    else {

        // pass the event on to the parent class

        return QMainWindow::eventFilter(obj, event);

    }

     return true;

}

void MainWindow::on_pushButton_4_clicked()

{

QString filename=QFileDialog::getOpenFileName(this,QString::fromLocal8Bit("文件类型"),".",QString::fromLocal8Bit("文问类型(*.*)"));

qDebug()<<filename;

  media->setCurrentSource(Phonon::MediaSource(filename));

      media->play();

 this->setWindowTitle(filename);

       ui->pushButton_5->setEnabled(false);

          ui->pushButton_7->setEnabled(true);

           w1->setFocus();

//this->ui->label->setText(filename);

}

void MainWindow::on_pushButton_8_clicked()

{

    QMessageBox::information(this, tr("About Mdiea Player"),

                             tr("ID:Jammy  0.03"));

}

void MainWindow::on_pushButton_clicked()

{

    vwidget->enterFullScreen();

}

void MainWindow::on_pushButton_5_clicked()

{

      media->play();

      ui->pushButton_5->setEnabled(false);

      ui->pushButton_7->setEnabled(true);

}

void MainWindow::on_pushButton_7_clicked()

{

   media->pause();

   ui->pushButton_7->setEnabled(false);

   ui->pushButton_5->setEnabled(true);

}

void MainWindow::on_pushButton_6_clicked()

{

     // media->setCurrentSource(Phonon::MediaSource(this->ui->label->text()));

      media->stop();

  }

void MainWindow::tick(qint64 time)

{

    QTime displayTime(0, (time / 60000) % 60, (time / 1000) % 60);

    timeLcd->display(displayTime.toString("mm:ss"));

}

void MainWindow::keyPressEvent(QKeyEvent *k)

 {

        if(k->key() == Qt::Key_Space)

     {

        if(ui->pushButton_5->isEnabled()==true)

        {

         media->pause();

         ui->pushButton_5->setEnabled(false);

         ui->pushButton_7->setEnabled(true);

     }

        else if(ui->pushButton_5->isEnabled()==false)

        {

    media->play();

             ui->pushButton_5->setEnabled(true);

           ui->pushButton_7->setEnabled(false);

        }

    }

        else if(k->modifiers() == Qt::AltModifier && k->key() == Qt::Key_Return)

                {

                vwidget->enterFullScreen();

                }

//        else if(k->modifiers() == Qt::ShiftModifier && k->key() == Qt::Key_A)

//        {

//        vwidget->enterFullScreen();

//        }

}

void MainWindow::writeSettings()

{

    QSettings settings("Software Inc.", "Icon Editor");

    settings.beginGroup("mainWindow");

    settings.setValue("size", size());

    settings.setValue("state", saveState());

    settings.endGroup();

}

void MainWindow::readSettings()

{

    QSettings settings("Software Inc.", "Icon Editor");

    settings.beginGroup("mainWindow");

    resize(settings.value("size").toSize());

    restoreState(settings.value("state").toByteArray());

    settings.endGroup();

}

void MainWindow::closeEvent(QCloseEvent *ex)

{

   int a= QMessageBox::information(NULL,QString::fromLocal8Bit("对话框"),QString::fromLocal8Bit("是否需要退出"),QString::fromLocal8Bit("确定"),QString::fromLocal8Bit("取消"),NULL,0,-1);

   if(a==0)

   {

       writeSettings();

   ex->accept();

   }

   else if(a==1)

   {

   ex->ignore();

   }

}

****************************************************

MAINWINDOW.H

 

#define MAINWINDOW_H

#include <QMainWindow>

#include <phonon>

#include <QWidget>

#include <QLCDNumber>

namespace Ui {

    class MainWindow;

}

class MainWindow : public QMainWindow

{

    Q_OBJECT

public:

    explicit MainWindow(QWidget *parent = 0);

    ~MainWindow();

protected:

     Phonon::MediaObject *media ;

      Phonon::VideoWidget *vwidget;

        Phonon::AudioOutput *aOutput;

       Phonon::VolumeSlider *volumeSlider;

       Phonon::SeekSlider *seekSlider;

private:

    Ui::MainWindow *ui;

       QPoint m_dragPosition;

        protected:

            void resizeEvent(QResizeEvent *event);

                void mouseMoveEvent(QMouseEvent *event);

               void mousePressEvent(QMouseEvent *event);

bool eventFilter(QObject *obj, QEvent *ev);

 QWidget *w1;

  QWidget *w2;

 QWidget *w3;

     QLCDNumber *timeLcd;

private slots:

    void on_pushButton_6_clicked();

    void on_pushButton_7_clicked();

    void on_pushButton_5_clicked();

    void on_pushButton_clicked();

    void on_pushButton_8_clicked();

    void on_pushButton_4_clicked();

    void on_pushButton_3_clicked();

    void on_pushButton_2_clicked();

     void tick(qint64 time);

     void keyPressEvent(QKeyEvent *k);

     void writeSettings();

     void readSettings();

        void closeEvent(QCloseEvent *ex);

};

#endif // MAINWINDOW_H