Hi Julien,
what I remember from history
- Jochen F. Rick had a "JRWorldManager" implemented back in 2010
- was discusssed here
http://forum.world.st/Multiple-Worlds-was-Re-Can-I-use-Projects-in-Pharo-td2240869.html
- code is here
http://forum.world.st/attachment/2242195/0/JRWorldManager.st (basically
something to manage the desktops)
- then Sean picked up the idea in 2011 and implemented
- blog post http://seandenigris.com/blog/?p=767
- he provided "MultipleWorlds.2.cs" which I think is lost during
bugtracker transition
- later default Pharo image was reworked for the world to have WorldMorph
instances instead of Squeaks PasteUpMorph, so
the code of Sean and Jochen would be obsolete anyway
Some tips:
==========
- Pharo has a global called "World" which is pointing to the current world of
displayed morphs, you need to
switch this and handle/manage new Worlds = Desktops.
- in older Pharo versions and Squeak this was a PasteUpMorph, now it is an
instance of class "WorldMorph"
- note that there is a class side method "installNewWorld" with the nice
comment "let us play God."
- basically you already have the parts with a DeskopManager and the switch via
keyboard, you just need
to play with #installNewWorld and #install method of the worlds
Note: check the comments of the class and methods in WorldMorph - this might
be subject to change
- to get a thumbnail form of the world you can use:
|sizeFactor|
sizeFactor := 0.3.
World taskThumbnailOfSize: (Display width * sizeFactor) @ (Display height *
sizeFactor)
- see how the preview is handled in TaskListMorph
newPreviewMorph/updatePreview methods to get an idea
So all the pieces of the puzzle are there - just connect them correctly.
Side Note: default Pharo image has the possibility to put an external picture
somewhere that is used
by the theme as the background image. Cant remember where it is -
just browser for "background..."
methods in the Finder. With multiple desktops I guess this needs
some love as well to have
a backgorund per desktop.
Hope that helps!
Bye
Torsten
> Gesendet: Montag, 24. August 2015 um 19:46 Uhr
> Von: "Julien Delplanque" <jul...@tamere.eu>
> An: "Torsten Bergmann" <asta...@gmx.de>, "Any question about pharo is
> welcome" <pharo-users@lists.pharo.org>, "Stéphane Ducasse"
> <stephane.duca...@inria.fr>, "Marcus Denker" <marcus.den...@inria.fr>,
> s...@clipperadams.com
> Betreff: Re: Multi desktops inside Pharo!
>
>
>
> On 24/08/15 19:32, Torsten Bergmann wrote:
> > Julien Delplanque wrote:
> >> I created a small utility that make possible to have multi desktops:
> >> https://github.com/juliendelplanque/desktopsmanager.
> > Your code works for me in Pharo 5, havent tried in Pharo 4.
> >
> > Unfortunately it does only work for Pharo "windows" but not general morphs.
> > If you evaluate
> >
> > ElipseMorph new openInWorld
> >
> > and hit CTRL+SHIFT+J you will see that the morph stays on the desktop.
> > So your goodie is a "window switcher" and not a "desktop switcher".
> Yes you are right. But it is a first step, I planned to really create
> "new desktops" in the future, but for now I wrote this fast to have
> something usable.
> >
> > I guess it would be better if you would really switch the WorldMorph
> > instance
> > referenced by the global "World" variable.
> >
> > There already was a solutions once discussed/contributed with code here
> >
> > http://forum.world.st/Multiple-Worlds-for-Pharo-stable-td3233552.html
> > http://seandenigris.com/blog/?p=767
> >
> > I think it got lost in the old bugtracker. Maybe Sean (who wrote it) can
> > help here,
> > update the code and merge with yours.
> Yes I'm OK to do that. Where can I find this package?
> >
> >
> > Ideally such a "Switch desktop" possibility would be part of the
> > standard Pharo 5 image including a small preview of the whole desktop
> > similar to what usual operating system window manager do and the possibility
> > to provide different backgrounds to the desktops.
> It would be really nice to have multiple world by default in pharo images :)
> >
> > Thanks
> > Torsten
> Julien
>
>
