How do you add a Camera class to a .ui file correctly?

[arjun98]

I have a general ui page (video_display.ui) (Qt designer) with a layout and several components. I have set a blank widget named video within that page and promote it to class QCameraViewfinder. If I run the following code from within the cpp (video_display.cpp) file, I get the result I want.

Video_display::Video_display(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Video_display)
{
    ui->setupUi(this);
ui->set
 mCamera = new QCamera(this);
 mCameraViewfinder = ui->video;
 mCamera->setViewfinder(mCameraViewfinder);
 ui->video->show();
 mCamera->start();
}

However, I want to implement everything related to the camera in a separate class.
So instead of promoting to QCameraViewfinder, I promote it to Camera which is a custom class.

Camera::Camera(QWidget *parent) : QWidget(parent)
{

     mCamera = new QCamera();
     mCameraViewfinder = new QCameraViewfinder(this);
     mCamera->setViewfinder(mCameraViewfinder);
     mCamera->start();
}

The problem with this is that while the camera is in the correct location it is not scaled to fit within the video widget thus only displaying a portion of the video screen.

If I add the following line of code:

mCamerViewfinder->show();

The video is only displayed in a small frame within the video widget location.

Any guidance on the matter would be very helpful.
Thank you,
Arjun

[arjun98]

I added the following two lines of code and it worked:

     QHBoxLayout *camera_layout = new QHBoxLayout(this);
     mCamera = new QCamera();
     mCameraViewfinder = new QCameraViewfinder();
     camera_layout->addWidget(mCameraViewfinder);
     mCamera->setViewfinder(mCameraViewfinder);
     mCamera->start();

And it worked