_NET_WORKAREA and Xinerama

Carsten Haitzler (The Rasterman) raster at rasterman.com
Thu Oct 26 01:56:41 EEST 2006


On Wed, 25 Oct 2006 23:54:29 +0400 "Oleg Sukhodolsky" <son.two at gmail.com>
babbled:

> Ok, if _NET_WORKAREA is too restrictive and Xinerama is one case which
> shows the problem.  Are there any plans to change spec to resolve this
> problem?

don't look at me. :) you have to get this past the people who control the spec.

> Thanks, Oleg.
> 
> On 10/25/06, The Rasterman Carsten Haitzler <raster at rasterman.com> wrote:
> > On Tue, 24 Oct 2006 19:38:05 +0400 "Oleg Sukhodolsky" <son.two at gmail.com>
> > babbled:
> >
> > > On 10/24/06, The Rasterman Carsten Haitzler <raster at rasterman.com> wrote:
> > > > On Tue, 24 Oct 2006 18:06:43 +0400 "Oleg Sukhodolsky"
> > > > <son.two at gmail.com> babbled:
> > > >
> > > > > But results you will have may differ from the area which WM consider
> > > > > as workarea.
> > > >
> > > > correc - the wm gets to decide how to figure it out. the user then gets
> > > > to tell the wm what algorithm or method to use (minimum area, generous,
> > > > shaped, maximum etc. etc.)
> > >
> > > So, if we want to be consistent with WM we have to use _NET_WORKAREA,
> > > but it doesn't work for Xinerama and this returns us to beginning of
> > > the discussion :(
> >
> > no - _NET_WORKAREA is broken in that it defines a single area only. if you
> > define such region(s) by simply placing panels or "fake obstacles" around
> > the edges of your screen, the wm can figure out what the workarea is - the
> > wm then can handle maximizing and fullscreening of windows as it sees fit
> > based on it's interpretation. wrt. filemanager's icons i can see how not
> > knowing this area can then be a problem - but the fact that it is just a
> > simple rectangle is  too limiting. i.e.:
> >
> > # = panel.
> > . = current workarea
> > : = actual usable workarea
> > +----------------------+
> > |##::::::::::::::::::##|
> > |......................|
> > |......................|
> > |......................|
> > |:::::::::::::::#######|
> > +----------------------+
> >
> > the old "workarea" limits you to the "." region. in theory icons windows
> > etc. can be placed and "maximised" to use the ":" regions too. the "work
> > area" is a region of "rectangles" where count is >= 1 that together form a
> > shape/region. imho something (let's say the wm) is in charge of taking the
> > obstacles ("#" windows) and figuring out what regions outside these windows
> > it wants to use for what. xinerama just extends this model to the below:
> > +----------------------+----------------------+
> > |##::::::::::::::::::##|####::::::::::::::::##|
> > |......................|:.....................|
> > |......................|#.....................|
> > |......................|#.....................|
> > |:::::::::::::::#######|----------------------+
> > +----------------------+
> >
> > for example. so what you actually need is a way of defining N regions with
> > each using M rectangles.
> >
> > 2 ways to do this.
> > 1. provide multiple windows - never map them, set their shape. add
> > properties to them so any app can find them (make them immediate children
> > of root). then u can get their shape. problem - this relies on the shape
> > extension existing. a pretty good bet these days, but maybe in principle a
> > bad thing to have as a standard for netwm stuff.
> > 2. extends the workarea property and place it on 2 windows (as above) and
> > allow N sets of co-ords (N*4 card's) and thus be able to have multiple
> > regions each with multipe rects. wm should list the largest (main rect)
> > first to save extra processing by clients - but the extra rects can cover
> > all the other extents that can be used too.
> >
> > > Oleg.
> > >
> > > > > Oleg.
> > > > >
> > > > > On 10/24/06, The Rasterman Carsten Haitzler <raster at rasterman.com>
> > > > > wrote:
> > > > > > On Tue, 24 Oct 2006 17:06:57 +0400 "Oleg Sukhodolsky"
> > > > > > <son.two at gmail.com> babbled:
> > > > > >
> > > > > > > Hi,
> > > > > > >
> > > > > > > I need to know workarea, but it looks like it doesn't work well
> > > > > > > for Xinerama : (
> > > > > > >
> > > > > > > I've found couple discussions on this subject:
> > > > > > >
> > > > > > > http://mail.gnome.org/archives/wm-spec-list/2003-March/msg00003.html
> > > > > > > http://mail.gnome.org/archives/wm-spec-list/2004-March/msg00000.html
> > > > > > >
> > > > > > > So, are there any plans to enhance the spec to work well with
> > > > > > > Xinerama?
> > > > > >
> > > > > > personally i think workarea is not that useful - "work area"(s) can
> > > > > > be calculated FROM known obsctacles on screens (like panels, etc.
> > > > > > etc.). all you need is a way of providing virtual obstacles.
> > > > > >
> > > > > > > Thanks, Oleg.
> > > _______________________________________________
> > > xdg mailing list
> > > xdg at lists.freedesktop.org
> > > http://lists.freedesktop.org/mailman/listinfo/xdg
> > >
> >
> >
> > --
> > ------------- Codito, ergo sum - "I code, therefore I am" --------------
> > The Rasterman (Carsten Haitzler)    raster at rasterman.com
> > 裸好多
> > Tokyo, Japan (東京 日本)
> >
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> 


-- 
------------- Codito, ergo sum - "I code, therefore I am" --------------
The Rasterman (Carsten Haitzler)    raster at rasterman.com
裸好多
Tokyo, Japan (東京 日本)



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