Fem: Make pipeline filters invisible if a new filter is added

[marioalexis84]

This pull request is aimed at fixing issues #13660 and #13695 making all elements in the pipeline invisible if a new filter is added.

@FEA-eng these changes satisfy the second point of your proposal. The first is more specific to CalculiX features. Can you divide the issue in two?
@maxwxyz I can't reproduce (but I saw that behavior in the past) your second case when editing the warp filter. Can you give more specific steps to reproduce?

[maxwxyz]

I can't reproduce (but I saw that behavior in the past) your second case when editing the warp filter. Can you give more specific steps to reproduce?

just add another warp filter or any other filter to a result pipeline with an active warp filet (set a deformation and color output). As soon as another filter is added, the original is red, until you select it in the tree.
Also just add one warp filter, set settings and click ok. Douple click on the filter to edit it gain --> all is red, until you select it in the tree.

[marioalexis84]

Now I can reproduce (In my case the filter turns green). This pull request will hide the problem since it makes the pipeline filters invisible, but in any case there is something wrong in the handling of the internal data.

[FEA-eng]

Thanks, I’ll have a look at this next week because I’m on a vacation.

[maxwxyz]

It works. But I'd leave #13695 open as you've mentioned.

[maxwxyz]

will the deletion or change of visibility of the last filter make the next filter visible?

[marioalexis84]

will the deletion or change of visibility of the last filter make the next filter visible?

In general, I think that the program should not assume too much about user intentions.

I close this pull request in favor of #13820.
In that PR, #13695 is solved and only the input filter is hidden. The other filters in the pipeline maintain their visibility status.