grow | JavaScript L-system implementation | Frontend Framework library

A part of my form contains QGroupBox (Status Box) with 4 child QGroupBoxes arranged in a grid layout (2x2). Two bottom QGroupBoxes (Widget 1 Box and Widget 2 Box) contain widgets of fixed size (with set minimumSize and maximumSize) so they're non-resizable at all in both directions. Because of that rigid size constraints top row of QGroupBoxes (Summary Box and Helper Box) can only be resized in vertical direction.

And here comes the troublesome part. Top-left QGroupBox (Summary Box) have grid layout 5x3 while top-right (Helper Box) have vertical layout with 6 rows. If I have naive widget placement as shown on picture 1 Qt is enlarging vertical size of both labels in top row to make height of both QGroupBoxes equal (see red arrows on picture 1).

This is definitely that I don't want so I've added vertical spacer to the bottom of Summary Box and from the first glance it worked (picture 2). But only from the first glance... What you see is the minimum height of my whole form and the bottom side of spacer and last QCheckBox in the Helper Box seems to be aligned.

If I'm expanding my form vertically this spacer grows a bit and that causes the increase of height of both top QGroupBoxes. As a result spacing between QCheckBoxes increases too and we can also see that top and bottom spacing are unequal for the top-right box (see red arrows on picture 3).

I've tried to play with sizeType for my vertical spacer. If I set it to Minimum or MinimumExpanding then the spacer doesn't grow on resize (and doesn't shrink, too) but it appears to be expanded to the size as on picture 3 (corrupting spacings between QCheckBoxes too). If I set it to Maximum, Preferred or Expanding then I observe the same behavior as described above for picture 3.

What is the proper way to achieve alignment for two QGroupBoxes in a row of grid without affecting spacing between elements (e. g. in that case make vertical spacer to fit only single row of grid layout and never expand/shrink)?

I am trying to change the property of a CSS class on click on a button. Firstly i have this button in my html

In the snippet, you'll see ::after pseudo with a border setting. I'm trying to add a border to the right of each class .details and place that border in the middle of each column to look like this:

Here is my question, i will list them to make it clear:

1. I am writing a program drawing squares in 2D using instancing.
2. My camera direction is (0,0,-1), camera up is (0,1,0), camera position is (0,0,3), and the camera position changes when i press some keys.
3. What I want is that, when I zoom in (the camera moves closer to the square), the square's size(in the screen) won't change. So in my shader:

I want the ScrollViewer to do only one thing - allow me to scroll. I don't want it to allow its Content to grow. Yet it does. How to prevent that?

I have box elements in a flex container. I want the paragraph in a box to display when hovering over the box. However, the hovered box makes the other boxes grow too. Is there a way to avoid affecting the other boxes when hovering one box?
I would try: align-items:flex-start, but I want the boxes to be equivalent in height when they are not hovered.
So align-items:flex-start does not keep the boxes' height equivalent when they are not hovered.
I want the box to enlarge when hovered without affecting the other boxes and turn back to the equivalent height when not hovered.

Codepen link: https://codepen.io/lemour-sudo/pen/yLMQOpE

I was writing a simple loop in C++ and was wondering what the time complexity would be.

My intuition tells me that it is O(n*log(n)) but I couldn't come up for a proof for the n*log(n)

I found this answer posted here earlier.

There is a Java 11 (SpringBoot 2.5.1) application with simple workflow:

1. Upload archives (as multipart files with size 50-100 Mb each)
2. Unpack them in memory
3. Send each unpacked file as a message to a queue via JMS

When I run the app locally java -jar app.jar its memory usage (in VisualVM) looks like a saw: high peaks (~ 400 Mb) over a stable baseline (~ 100 Mb).

When I run the same app in a Docker container memory consumption grows up to 700 Mb and higher until an OutOfMemoryError. It appears that GC does not work at all. Even when memory options are present (java -Xms400m -Xmx400m -jar app.jar) the container seems to completely ignore them still consuming much more memory.

So the behavior in the container and in OS are dramatically different. I tried this Docker image in DockerDesktop Windows 10 and in OpenShift 4.6 and got two similar pictures for the memory usage.

Dockerfile