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Exit video full-screen

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  • H Offline
    H Offline
    HW-Developer
    wrote on last edited by
    #1

    Hello everyone,
    I am trying to make a basic media player but, i did have a problem with full screen mode for videos
    when i click the fullscreen it shows the video on full screen but when i can't figure out hot to exit the fullscreen mode whene pressing escape key event or double clicked the video.
    can anyone help me please!

    so this my code:

    void lecteur::on_bt_fullscreen_clicked(){
    	if(!mVideoWidget->isFullScreen()){
    		mVideoWidget->setFullScreen(true);
    	}
    	qDebug() << "hi there!";
    }
    

    Thank you

    1 Reply Last reply
    1
    • mrjjM Offline
      mrjjM Offline
      mrjj
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi
      Did you try
      mVideoWidget->showNormal() ?
      http://doc.qt.io/qt-5/qwidget.html#showNormal

      H 1 Reply Last reply
      1
      • mrjjM mrjj

        Hi
        Did you try
        mVideoWidget->showNormal() ?
        http://doc.qt.io/qt-5/qwidget.html#showNormal

        H Offline
        H Offline
        HW-Developer
        wrote on last edited by
        #3

        @mrjj Yes i know this method But how can i use it when pressing escape key or double click the video

        mrjjM 1 Reply Last reply
        1
        • H HW-Developer

          @mrjj Yes i know this method But how can i use it when pressing escape key or double click the video

          mrjjM Offline
          mrjjM Offline
          mrjj
          Lifetime Qt Champion
          wrote on last edited by
          #4

          @HW-Developer
          well for ESC, you would override KeyPressEvent for mVideoWidget
          and respond to it. same with click.
          What type is mVideoWidget ?
          Its it your own child class or just plain Qt one?

          H 1 Reply Last reply
          3
          • mrjjM mrjj

            @HW-Developer
            well for ESC, you would override KeyPressEvent for mVideoWidget
            and respond to it. same with click.
            What type is mVideoWidget ?
            Its it your own child class or just plain Qt one?

            H Offline
            H Offline
            HW-Developer
            wrote on last edited by
            #5

            @mrjj mVideoWidget is a QVideoWidget
            Can you suggest me some examples please, because i'am really a beginner in qt programming
            really thank you

            mrjjM 1 Reply Last reply
            0
            • H HW-Developer

              @mrjj mVideoWidget is a QVideoWidget
              Can you suggest me some examples please, because i'am really a beginner in qt programming
              really thank you

              mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by mrjj
              #6

              @HW-Developer
              Hi
              You could subclass the QVideoWidget and use your own class instead
              where you react to key and mouse.
              Alternatively there is also event filters
              http://doc.qt.io/qt-5/eventsandfilters.html
              that allow you to do this without subclassing.

              Sample of subclassing and reacting to key / mouse

              #include <QKeyEvent>
              #include <QVideoWidget>
              
              class MyVideoWidget : public QVideoWidget {
               public:
                MyVideoWidget(QWidget* parent = nullptr) : QVideoWidget(parent) { }
               protected:
                virtual void mouseDoubleClickEvent(QMouseEvent* event) override {
                  showNormal();
                }
                virtual void keyPressEvent(QKeyEvent* event) override {
                  if ( event->key() == Qt::Key_Escape) {
                    showNormal();
                  }
                }
              };
              
              H 1 Reply Last reply
              3
              • mrjjM mrjj

                @HW-Developer
                Hi
                You could subclass the QVideoWidget and use your own class instead
                where you react to key and mouse.
                Alternatively there is also event filters
                http://doc.qt.io/qt-5/eventsandfilters.html
                that allow you to do this without subclassing.

                Sample of subclassing and reacting to key / mouse

                #include <QKeyEvent>
                #include <QVideoWidget>
                
                class MyVideoWidget : public QVideoWidget {
                 public:
                  MyVideoWidget(QWidget* parent = nullptr) : QVideoWidget(parent) { }
                 protected:
                  virtual void mouseDoubleClickEvent(QMouseEvent* event) override {
                    showNormal();
                  }
                  virtual void keyPressEvent(QKeyEvent* event) override {
                    if ( event->key() == Qt::Key_Escape) {
                      showNormal();
                    }
                  }
                };
                
                H Offline
                H Offline
                HW-Developer
                wrote on last edited by
                #7

                @mrjj Thank you so much it works, the only problem left is that the video detach from the MainWindow.
                Do you know why?

                mrjjM 1 Reply Last reply
                1
                • H HW-Developer

                  @mrjj Thank you so much it works, the only problem left is that the video detach from the MainWindow.
                  Do you know why?

                  mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by mrjj
                  #8

                  @HW-Developer
                  Hi
                  On some platforms ( Windows) the video is actual an overlay and not really inside the window.
                  Im not sure if that is what you are seeing ?
                  When you say detach from mainwindow, does it show as its own window or how does it look?
                  Im asking as if you dont give a QWidget ( including QVideoWidget) a parent, it will become a window on its own.
                  (if you show the code where u create the QVideoWidget, its easy to spot if that is the issue)
                  Basically the difference is like
                  QVideoWidget *vid= new QVideoWidget;
                  versus
                  QVideoWidget *vid= new QVideoWidget(this); <<< "this" is the parent

                  H 1 Reply Last reply
                  0
                  • mrjjM mrjj

                    @HW-Developer
                    Hi
                    On some platforms ( Windows) the video is actual an overlay and not really inside the window.
                    Im not sure if that is what you are seeing ?
                    When you say detach from mainwindow, does it show as its own window or how does it look?
                    Im asking as if you dont give a QWidget ( including QVideoWidget) a parent, it will become a window on its own.
                    (if you show the code where u create the QVideoWidget, its easy to spot if that is the issue)
                    Basically the difference is like
                    QVideoWidget *vid= new QVideoWidget;
                    versus
                    QVideoWidget *vid= new QVideoWidget(this); <<< "this" is the parent

                    H Offline
                    H Offline
                    HW-Developer
                    wrote on last edited by
                    #9

                    @mrjj this is how it shows :
                    0_1539619173308_Capture.PNG

                    mrjjM 1 Reply Last reply
                    0
                    • H HW-Developer

                      @mrjj this is how it shows :
                      0_1539619173308_Capture.PNG

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #10

                      @HW-Developer
                      Super, i really think its just because your are not assigning a parent when you create it.
                      it then becomes a window.
                      So instead of replacing the other QVideoWidget you have, it just opens a (new) window.
                      Thats easy fixed by assigning a parent.
                      Did you based this off some sample i can look at ?

                      H R 2 Replies Last reply
                      1
                      • mrjjM mrjj

                        @HW-Developer
                        Super, i really think its just because your are not assigning a parent when you create it.
                        it then becomes a window.
                        So instead of replacing the other QVideoWidget you have, it just opens a (new) window.
                        Thats easy fixed by assigning a parent.
                        Did you based this off some sample i can look at ?

                        H Offline
                        H Offline
                        HW-Developer
                        wrote on last edited by
                        #11

                        @mrjj I make you a simple example, it shows the same issue:

                        #include "MyPlayer.h"
                        
                        MyPlayer::MyPlayer(QWidget *parent)
                        	: QMainWindow(parent)
                        {
                        	ui.setupUi(this);
                        	QWidget *zoneCentrale = new QWidget;
                        	setCentralWidget(zoneCentrale);
                        	player = new QMediaPlayer(this);
                        	videoWidget = new MyVideoWidget(this);
                        	videoWidget->setGeometry(100, 100, 500, 400);
                        	fullScreen = new QPushButton("full-screen", this);
                        	layout = new QVBoxLayout();
                        	
                        	
                        	player->setMedia(QUrl::fromLocalFile("C:/Users/ouafa/Downloads/nature.mp4"));
                        	player->setVideoOutput(videoWidget);
                        	layout->addWidget(videoWidget);
                        	layout->addWidget(fullScreen);
                        	
                        	zoneCentrale->setLayout(layout);
                        	player->setVolume(100);
                        	setCentralWidget(zoneCentrale);
                        	
                        	QObject::connect(fullScreen, SIGNAL(clicked()), this, SLOT(on_bt_agrandi_clicked()));
                        
                        	videoWidget->show();
                        	player->play();
                        	qDebug()<< player->isVideoAvailable();
                        	qDebug() << player->availableMetaData() << player->currentMedia().canonicalUrl();
                        }
                        void MyPlayer::on_bt_agrandi_clicked() {
                        	if (!videoWidget->isFullScreen()) {
                        		videoWidget->setFullScreen(true);
                        	}
                        	
                        	qDebug() << "hi there!";
                        }
                        
                        1 Reply Last reply
                        0
                        • mrjjM Offline
                          mrjjM Offline
                          mrjj
                          Lifetime Qt Champion
                          wrote on last edited by mrjj
                          #12

                          Hi
                          I could not reproduce
                          alt text

                          However, using you code 100% as is - made app crash. Not sure why.
                          (just tried again to be sure)

                          This is the code i used. i rearranged it a bit and gave zoneCentrale directly to the layout.
                          else its pretty much the same. Can you try this ? ( change the mp4 file ofc)

                           QWidget* zoneCentrale = new QWidget;
                            setCentralWidget(zoneCentrale);
                            auto player = new QMediaPlayer(this);
                            auto videoWidget = new QVideoWidget(this);
                            player->setVideoOutput(videoWidget);
                          
                            auto fullScreen = new QPushButton("full-screen", this);
                            auto layout = new QVBoxLayout(zoneCentrale);
                          
                            player->setMedia(QUrl::fromLocalFile("F:/Dropbox/_qtprojects/wontdelete/test2.mp4"));
                          
                            layout->addWidget(videoWidget);
                            layout->addWidget(fullScreen);
                          
                            player->setVolume(100);
                          
                            QObject::connect(fullScreen, SIGNAL(clicked()), this, SLOT(on_bt_agrandi_clicked()));
                          
                            videoWidget->show();
                            player->play();
                          
                          H 2 Replies Last reply
                          2
                          • mrjjM mrjj

                            Hi
                            I could not reproduce
                            alt text

                            However, using you code 100% as is - made app crash. Not sure why.
                            (just tried again to be sure)

                            This is the code i used. i rearranged it a bit and gave zoneCentrale directly to the layout.
                            else its pretty much the same. Can you try this ? ( change the mp4 file ofc)

                             QWidget* zoneCentrale = new QWidget;
                              setCentralWidget(zoneCentrale);
                              auto player = new QMediaPlayer(this);
                              auto videoWidget = new QVideoWidget(this);
                              player->setVideoOutput(videoWidget);
                            
                              auto fullScreen = new QPushButton("full-screen", this);
                              auto layout = new QVBoxLayout(zoneCentrale);
                            
                              player->setMedia(QUrl::fromLocalFile("F:/Dropbox/_qtprojects/wontdelete/test2.mp4"));
                            
                              layout->addWidget(videoWidget);
                              layout->addWidget(fullScreen);
                            
                              player->setVolume(100);
                            
                              QObject::connect(fullScreen, SIGNAL(clicked()), this, SLOT(on_bt_agrandi_clicked()));
                            
                              videoWidget->show();
                              player->play();
                            
                            H Offline
                            H Offline
                            HW-Developer
                            wrote on last edited by
                            #13

                            @mrjj It's not working, when i make the changes, i run the app and click fullscreen button, it crash, and it blocks the app

                            1 Reply Last reply
                            0
                            • mrjjM mrjj

                              Hi
                              I could not reproduce
                              alt text

                              However, using you code 100% as is - made app crash. Not sure why.
                              (just tried again to be sure)

                              This is the code i used. i rearranged it a bit and gave zoneCentrale directly to the layout.
                              else its pretty much the same. Can you try this ? ( change the mp4 file ofc)

                               QWidget* zoneCentrale = new QWidget;
                                setCentralWidget(zoneCentrale);
                                auto player = new QMediaPlayer(this);
                                auto videoWidget = new QVideoWidget(this);
                                player->setVideoOutput(videoWidget);
                              
                                auto fullScreen = new QPushButton("full-screen", this);
                                auto layout = new QVBoxLayout(zoneCentrale);
                              
                                player->setMedia(QUrl::fromLocalFile("F:/Dropbox/_qtprojects/wontdelete/test2.mp4"));
                              
                                layout->addWidget(videoWidget);
                                layout->addWidget(fullScreen);
                              
                                player->setVolume(100);
                              
                                QObject::connect(fullScreen, SIGNAL(clicked()), this, SLOT(on_bt_agrandi_clicked()));
                              
                                videoWidget->show();
                                player->play();
                              
                              H Offline
                              H Offline
                              HW-Developer
                              wrote on last edited by
                              #14

                              @mrjj It's working after i verify everything, it is the escape key event, it should be setFullScreen(False) instead of showNormal();

                              I really thank you for your help. It was really nice
                              Good luck and have a good days

                              mrjjM 1 Reply Last reply
                              2
                              • H HW-Developer

                                @mrjj It's working after i verify everything, it is the escape key event, it should be setFullScreen(False) instead of showNormal();

                                I really thank you for your help. It was really nice
                                Good luck and have a good days

                                mrjjM Offline
                                mrjjM Offline
                                mrjj
                                Lifetime Qt Champion
                                wrote on last edited by
                                #15

                                @HW-Developer
                                Super.
                                Happy days to you too

                                1 Reply Last reply
                                1
                                • mrjjM mrjj

                                  @HW-Developer
                                  Super, i really think its just because your are not assigning a parent when you create it.
                                  it then becomes a window.
                                  So instead of replacing the other QVideoWidget you have, it just opens a (new) window.
                                  Thats easy fixed by assigning a parent.
                                  Did you based this off some sample i can look at ?

                                  R Offline
                                  R Offline
                                  RakeshChitte
                                  wrote on last edited by
                                  #16

                                  @mrjj @mrjj I'm also facing same problem in Qt C++ 5.12.2 in Red Hat Enterpeise Linux 7.6.
                                  Please give proper solution if you can...

                                  mrjjM 1 Reply Last reply
                                  0
                                  • R RakeshChitte

                                    @mrjj @mrjj I'm also facing same problem in Qt C++ 5.12.2 in Red Hat Enterpeise Linux 7.6.
                                    Please give proper solution if you can...

                                    mrjjM Offline
                                    mrjjM Offline
                                    mrjj
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #17

                                    @RakeshChitte
                                    Hi
                                    Issue exiting fullscreen or floating window ?

                                    R 1 Reply Last reply
                                    0
                                    • mrjjM mrjj

                                      @RakeshChitte
                                      Hi
                                      Issue exiting fullscreen or floating window ?

                                      R Offline
                                      R Offline
                                      RakeshChitte
                                      wrote on last edited by
                                      #18

                                      @mrjj
                                      existing full screen...

                                      mrjjM 1 Reply Last reply
                                      0
                                      • R RakeshChitte

                                        @mrjj
                                        existing full screen...

                                        mrjjM Offline
                                        mrjjM Offline
                                        mrjj
                                        Lifetime Qt Champion
                                        wrote on last edited by
                                        #19

                                        @RakeshChitte
                                        Hi
                                        Welcome back.
                                        So what happens when you call showNormal(); ?

                                        1 Reply Last reply
                                        0

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