[Bug 160234] The number of constraints visible in the Solver dialog should increase to 6 (instead of current 4) and shouldn't use "infinite scroll"

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=160234

Stéphane Guillou (stragu) <stephane.guillou at libreoffice.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|The number of constraints   |The number of constraints
                   |visible in the Solver       |visible in the Solver
                   |dialog should increase to 6 |dialog should increase to 6
                   |(instead of current 4)      |(instead of current 4) and
                   |                            |shouldn't use "infinite
                   |                            |scroll"
             Blocks|                            |113360
                 CC|                            |libreoffice-ux-advise at lists
                   |                            |.freedesktop.org,
                   |                            |stephane.guillou at libreoffic
                   |                            |e.org
           Keywords|                            |needsUXEval
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Stéphane Guillou (stragu) <stephane.guillou at libreoffice.org> ---
I trust you on common use-cases for the solver, and I agree that the current UI
should be improved. E.g. try this:
- go to the "bottom" of the list of constraints with the scrollbar
- fill in that last row
- scroll again to the top
- try to find that bottom constraint

2 issues, in my opinion:
- the user shouldn't be able to leave empty constraints
- the Calc-style "infinite scroll" means that bottom row is had to find again
because new empty rows are added after it

I would prefer the following:
- as suggested by Rafael: a sensible default number of empty rows, with dialog
high enough to show them (as long as it fits the minimal recommended screen
size);
- beyond those first 6 rows, a [+] button to add more rows (i.e. no
ever-expanding scroll)

UX/Design team, opinion?

Version: 24.8.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 53c5d570cab036b23f4969b858a648c8f0c24f93
CPU threads: 8; OS: Linux 6.5; UI render: default; VCL: gtk3
Locale: en-AU (en_AU.UTF-8); UI: en-US
Calc: CL threaded


Referenced Bugs:

https://bugs.documentfoundation.org/show_bug.cgi?id=113360
[Bug 113360] [META] Solver-related bugs and enhancements
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