Application window geometry specifier

[Igor Korot]

Hi, Chris,

On Tue, Jan 12, 2021 at 1:33 PM Chris Angelico <rosuav at gmail.com> wrote:
>
> On Wed, Jan 13, 2021 at 6:18 AM Igor Korot <ikorot01 at gmail.com> wrote:
> >
> > Hi, Grant,
> >
> > On Tue, Jan 12, 2021 at 12:47 PM Grant Edwards
> > <grant.b.edwards at gmail.com> wrote:
> > >
> > > On 2021-01-12, Rich Shepard <rshepard at appl-ecosys.com> wrote:
> > > > On Tue, 12 Jan 2021, Igor Korot wrote:
> > > >
> > > >> Keep in mind that if you target Linux, the "modern" window server
> > > >> (Wayland) will not allow user code to decide the positioning and size of
> > > >> the TLW.
> > > >
> > > > Igor,
> > > >
> > > > I suspect that Slackware will continue with X11.
> > >
> > > And those X11 users will swear at you if you override their window
> > > managers configured window placement. Application code should not care
> > > about or try to control window geometry. Period.
> >
> > I have a very strong argument against it!!
> >
> > Imagine you are developing an application that need to communicate
> > with the database.
> > Also imagine this application will be used by millions of users inside
> > different companies.
> >
> > SInce the application will require DB access you will need a dialog to
> > ask for credentials.
> >
> > I, personally, would be very surprised if such dialog would appear
> > somewhere at the bottom of the screen,
> > as dialogs ARE TLWs (top level windows).
> >
> > Wouldn't you?
>
> Yes, I would too - because I have my window manager configured to
> place that dialog where *I* want it, not where the application
> developer chose to put it.

So, how do *you* distinguish between such dialog and all other dialogs
an application might raise (open/save dialogs. font selection dialog, user
warning thing).

Because with my scenario there are 2 TLWs in the picture - main frame and
dialog for credentials.

Besides it looks like you are setting this dialog to appear at constant position
anyway. Or am I missing smth?

>
> > So why I somewhat agree with such a notion - it is not always a useful feature.
> > Also, such an algorithm better allow me to save and restore the
> > geometry of the TLW.
>
> Why save and restore the geometry when the window manager can do a
> better job of positioning it? Give the WM the hints it needs, then let
> it figure out the placement.

Because I want this application to appear at the same place every time?
The first time it shows I may just drag it away or minimize it at some point or
make it very small to clear the space.

And the next time I want it to start at the same position.

>
> Consider that the last time your window was opened, I might have had
> one 1366x768 monitor, but now I have four - 1920x1080, 1920x1080,
> 1280x1024, and 1600x900. Where should your dialog go? Not your
> problem, because my WM knows and understands.

There is a notion of the "primary display" which is here for a reason. ;-)
So you can attach/detach as many monitors as you want - in the end if
the monitor is not available and that window will appear on the primary monitor.

>
> (That's actually a 100% realistic scenario, given that I'm usually on
> my desktop system, but occasionally I'll be on my laptop, SSH'd in
> with X11 forwarding.)

Absolutely.
I found myself in this situation recently - when I'm in the office I
have 2 external
monitors, and when I am at home - I only have a laptop.
And windows are showing on the primary all the time.

Thank you.

>
> ChrisA
> --
> https://mail.python.org/mailman/listinfo/python-list