Zoom the frame on click

Adarshpandey

I have create a UI with the help of qt designer and access the camera on the label widget with python and now i want zoom the camera on the click of label please help.

jsulm

@Adarshpandey Take a look at the suggestion here: https://forum.qt.io/topic/113473/zoom-in-and-zoom-out-on-qlabel-image/2

Adarshpandey

can you please describe in detailed in python

jsulm

@Adarshpandey No, I will not translate the code to Python for you. Try to do it by yourself and if something is not clear ask concrete questions...

Ard_Flamingo

To add on to @jsulm 's answer:

It seems what you're after is:

void ImageViewer::scaleImage(double factor)
{
    scaleFactor *= factor;
    imageLabel->resize(scaleFactor * imageLabel->pixmap(Qt::ReturnByValue).size());

    adjustScrollBar(scrollArea->horizontalScrollBar(), factor);
    adjustScrollBar(scrollArea->verticalScrollBar(), factor);

    zoomInAct->setEnabled(scaleFactor < 3.0);
    zoomOutAct->setEnabled(scaleFactor > 0.333);
}

(Function copied from https://doc.qt.io/qt-5/qtwidgets-widgets-imageviewer-example.html (the place where @jsulm pointed you to))

C++ is easy enough to convert to Python, or at least is easy to understand the concept of the function whether you know C++ or not, though I may be a bit biased as I know both languages.