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Re: [Pharo-project] Can OSProcess functionality be implemented using FFI instead of plugin?

by Igor Stasenko

On 5 May 2012 18:00, Eliot Miranda <eliot.miranda(a)gmail.com> wrote: > > > On Fri, May 4, 2012 at 6:23 PM, Igor Stasenko <siguctua(a)gmail.com> wrote: >> >> Hi, David, all >> >> i just want to know, if we can use FFI calls, for implementing an >> OSProcessPlugin functionality (or at least most of it). >> and if there parts which is hard to implement, i would like to know >> what and why. > > > Once we have the threaded FFI and the threaded VM then yes, because one can > block one thread in a read without blocking the entire VM. Â But without the > threaded VM one needs asynchronous i/o. > yes, but nobody said, that i can't use non-blocking i/o. the main advantage which i see for using FFI is being able to deal with everything at language level. so, bugs can be fixed quickly, things can be improved more easily etc etc.. and the main disadvantage is, of course, speed. >> >> If you want to ask, why one would want to do this.. the answer is simple: >> we stated previously, that we want to reduce the VM complexity by >> implementing things at language side, when it possible, >> leaving only key parts to VM. >> This is the main reason why i consider implementing OSProcess using >> purely FFI, not because of quality of OSProcessPlugin >> implementation etc. >> >> -- >> Best regards, >> Igor Stasenko. >> > > > > -- > best, > Eliot > -- Best regards, Igor Stasenko.

May 6, 2012

Re: [Pharo-project] Some Newbie problems

by Sean P. DeNigris

Peredur wrote > > I'm trying to work my way through the Pharo by example book on my Ubuntu > 12.04 LTS box. > This comes up every so often, so here's a one-click image adapted from the Pharo 1.4 one click, but with the Jenkins Stack VMs, briefly tested on Debian and OS X... I will host it temporarily at: http://seandenigris.com/files/PBE-1.0-one-click.zip Maybe someone will test in on Windows... and maybe someone will add it to the PBE site instead of the plain image so our new users will not suffer so much :) HTH, Sean -- View this message in context: http://forum.world.st/Some-Newbie-problems-tp4611608p4611923.html Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

May 5, 2012

Re: [Pharo-project] Some Newbie problems

by Peredur

El 05/05/12 21:12, StÃ©phane Ducasse escribiÃ³: > welcome peter Thank you >> I'm trying to work my way through the Pharo by example book on my Ubuntu 12.04 LTS box. Unfortunately, things in the book don't look like they do on my setup. For example, I can't work out what the key combination is to get the 'Morphic Halo'. I can get it from a menu, but not from a key press combination. > on mac it is > option + cmd + shift > and you click on the morph > Doesn't help a lot when you're not on a Mac :-) But it's not insuperable since I can get to it via the menus. I did try all the combinations I could think of, though (various combinations of [Shift], [Ctrl], [Alt], [Meta] and left and right clicks). Nothing seemed to work on Ubuntu 12, I'm afraid. >> Also, calling: >> >> BouncingAtomsMorph new openInWorld >> >> doesn't work. I just get an error message saying that there is no such object. > The BouncingAtomsMorph is not loaded in the new images. OK. Well. As long as it doesn't become crucial to the business of learning how to use SmallTalk and Pharo, I guess I can ignore the problem. For now, at least. >> ... >> $ ./pharo ../Resources/PBE.image >> >> I just get a segmentation fault. > The image of the book is an old one and you should get (may be I'm wrong) an old vm for example it should work on a Squeak3.9 VM. Again, I guess as long as it's not crucial, I can just carry on. >> I'm a complete newbie (but an experienced programmer in a variety of OO and other languages), so if anyone could shed any light on this, I'd be very grateful. > Let us know if you have any other problems. This is try true that such problems are annoying but we do not have the resources to > write a new book, develop pharo and maintain the old book. I sympathise with that, although it can be a bit self defeating in that if the docs aren't good and up-to-date it can put people off... Also, of course, the longer you leave things the worse it gets. The revision job just becomes bigger and bigger. > Did you have a look at the pharocast because this is also a good way to learn. I'll take a look. Thanks. Cheers Peter -- *Peter Bradley* peredur.net <http://www.peredur.net>

May 5, 2012

Re: [Pharo-project] Some Newbie problems

by StÃ©phane Ducasse

Fixed now it loads well in 1.4 Stef On May 5, 2012, at 10:47 PM, Philippe Back wrote: > The Atoms and other friends are available on a monticello repository. It is something like morphic-examples. It was squeaksource I think. > > Philippe > > > EnvoyÃ© depuis un mobile Samsung > > > > Peredur <peredur(a)peredur.net> a Ã©crit : > > > Hi, > > I'm trying to work my way through the Pharo by example book on my Ubuntu 12.04 LTS box. Unfortunately, things in the book don't look like they do on my setup. For example, I can't work out what the key combination is to get the 'Morphic Halo'. I can get it from a menu, but not from a key press combination. > > Also, calling: > > BouncingAtomsMorph new openInWorld > > doesn't work. I just get an error message saying that there is no such object. > > I thought these problems might be due to me having the standard image instead of the Pharo by Example image. So I downloaded that image but when I call Pharo on that image: > > $ ./pharo ../Resources/PBE.image > > I just get a segmentation fault. > > I'm a complete newbie (but an experienced programmer in a variety of OO and other languages), so if anyone could shed any light on this, I'd be very grateful. > > Thanks > > Peter > -- > Peter Bradley > peredur.net

May 5, 2012

Re: [Pharo-project] Some Newbie problems

by StÃ©phane Ducasse

Yes probably in PharoNonCorePackages in the near future we will clean all this mess :) MCHttpRepository location: 'http://www.squeaksource.com/PharoNonCorePackages' user: 'sd' password: '' Apparently some examples are depending from SketchMorph. I'm trying to have a look and cleaning them. Stef > The Atoms and other friends are available on a monticello repository. It is something like morphic-examples. It was squeaksource I think. > > Philippe > > > EnvoyÃ© depuis un mobile Samsung > > > > Peredur <peredur(a)peredur.net> a Ã©crit : > > > Hi, > > I'm trying to work my way through the Pharo by example book on my Ubuntu 12.04 LTS box. Unfortunately, things in the book don't look like they do on my setup. For example, I can't work out what the key combination is to get the 'Morphic Halo'. I can get it from a menu, but not from a key press combination. > > Also, calling: > > BouncingAtomsMorph new openInWorld > > doesn't work. I just get an error message saying that there is no such object. > > I thought these problems might be due to me having the standard image instead of the Pharo by Example image. So I downloaded that image but when I call Pharo on that image: > > $ ./pharo ../Resources/PBE.image > > I just get a segmentation fault. > > I'm a complete newbie (but an experienced programmer in a variety of OO and other languages), so if anyone could shed any light on this, I'd be very grateful. > > Thanks > > Peter > -- > Peter Bradley > peredur.net

May 5, 2012

[Pharo-project] RE : Some Newbie problems

by Philippe Back

The Atoms and other friends are available on a monticello repository. It is something like morphic-examples. It was squeaksource I think. Philippe EnvoyÃ© depuis un mobile Samsung Peredur <peredur(a)peredur.net> a Ã©crit : Hi, I'm trying to work my way through the Pharo by example book on my Ubuntu 12.04 LTS box. Unfortunately, things in the book don't look like they do on my setup. For example, I can't work out what the key combination is to get the 'Morphic Halo'. I can get it from a menu, but not from a key press combination. Also, calling: BouncingAtomsMorph new openInWorld doesn't work. I just get an error message saying that there is no such object. I thought these problems might be due to me having the standard image instead of the Pharo by Example image. So I downloaded that image but when I call Pharo on that image: $ ./pharo ../Resources/PBE.image I just get a segmentation fault. I'm a complete newbie (but an experienced programmer in a variety of OO and other languages), so if anyone could shed any light on this, I'd be very grateful. Thanks Peter -- *Peter Bradley* peredur.net <http://www.peredur.net>

May 5, 2012

Re: [Pharo-project] [Pharo-users] simple Pharo 1.4 question

by Mariano Martinez Peck

On Sat, May 5, 2012 at 10:16 PM, Werner Kassens <wkassens(a)libello.com>wrote: > Hi Mariano, > actually i do have nautilus installed, my question is, well, more about > whether pharo is now becoming unusable without mouse by design or just > accidently or whether i overlook something. > Hi. No, it is the other way arround. We now have much better shortcuts, and even keymamppings: http://marianopeck.wordpress.com/2011/12/04/why-keymapping-rocks/ The thing is that nobody expects that people use the default browser of Pharo 1.4. So yes, THAT browser may be ugly regarding keyboard. But take a look to Nautilus. Open Nautilus, click on the right upper key -> "shortcuts description". Then you can pick up a group and see the shortcuts. See the attached screenshot. In addition, to move between panes in Nautilus just use the arrows (left and right). Cheers > werner > > Mariano Martinez Peck a Ã©crit : > > Hi. The default browser of Pharo 1.4 is very basic. Or I don't know the >> shortcuts or directly it is not supported. >> Anyway, I recommend you to install another browser, like Nautilus. >> http://marianopeck.wordpress.**com/2012/02/26/nautilus-the-** >> reborn-of-the-systembrowser/<http://marianopeck.wordpress.com/2012/02/26/nautilus-the-reborn-of-the-syst…> >> > > -- Mariano http://marianopeck.wordpress.com

May 5, 2012

Re: [Pharo-project] Some Newbie problems

by StÃ©phane Ducasse

welcome peter > I'm trying to work my way through the Pharo by example book on my Ubuntu 12.04 LTS box. Unfortunately, things in the book don't look like they do on my setup. For example, I can't work out what the key combination is to get the 'Morphic Halo'. I can get it from a menu, but not from a key press combination. on mac it is option + cmd + shift and you click on the morph > Also, calling: > > BouncingAtomsMorph new openInWorld > > doesn't work. I just get an error message saying that there is no such object. The BouncingAtomsMorph is not loaded in the new images. > I thought these problems might be due to me having the standard image instead of the Pharo by Example image. So I downloaded that image but when I call Pharo on that image: > > $ ./pharo ../Resources/PBE.image > > I just get a segmentation fault. The image of the book is an old one and you should get (may be I'm wrong) an old vm for example it should work on a Squeak3.9 VM. > I'm a complete newbie (but an experienced programmer in a variety of OO and other languages), so if anyone could shed any light on this, I'd be very grateful. Let us know if you have any other problems. This is try true that such problems are annoying but we do not have the resources to write a new book, develop pharo and maintain the old book. Did you have a look at the pharocast because this is also a good way to learn. Stef > > Thanks > > Peter > -- > Peter Bradley > peredur.net

May 5, 2012

Re: [Pharo-project] [squeak-dev] Re: [ANN] STON - Smalltalk Object Notation

by Sven Van Caekenberghe

On 05 May 2012, at 15:58, Sven Van Caekenberghe wrote: > Maybe I should add some invocation examples to the paper to explain the API. https://github.com/svenvc/ston/blob/master/ston-paper.md#usage Sven

May 5, 2012

Re: [Pharo-project] How to dispatch mouseWheel?

by Martin Drautzburg

On Saturday, 5. May 2012 19:06:38 Martin Drautzburg wrote: Sorry, that was a bit fuzzy. My Morph is in a GeneralScrollPane. The GeneralScrollPane first sends mouseWheel event to the scroller (my Morph). My Morph can scroll horizonally infinitely and handles the horizontal scrolling itself. Its mouseWheel method makes sure this only happens when the mouse is over it. Otherwise the event remains unhandled and the GeneralScrollPane handles it and scrolls vertically. Now I have another Morph (really just a plain Morph) in betwen. The scroller again sends it a mouseWheel, but its just a plain Morph and it does not handle it. The effect is that scrolling is always controlled by the scroll pane (i.e. vertically). I cannot seem to tell the scroll pane: don't ask your scroller, ask my Morph, nor can I tell this plain Morph: when someone asks you to handle a mouseWheel, don't just say no, ask my Morph instead. Of course I can just create another Morph Class which passes all events to its owner. Is there anything more elegant? -- Martin

May 5, 2012