January 2016 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Pharo Sound does not work on Pharo 4

by stepharo

Ok this is good to know for 50. Did you check the " baseSoundSystem " Le 16/1/16 13:27, Dimitris Chloupis a Ã©crit : > even though it works fine for me in Pharo 5 (with the exception I have > to restart the sound player because the primitive fails at times) in > Pharo 4 I have no sound and no errors. Just Silence of the Lamps. > > opened bug report > > https://pharo.fogbugz.com/f/cases/17402/Pharo-Sound-does-not-work-on-Pharo-4 >

Jan. 17, 2016

Updated Pharo by Example

by stepharo

Here is the reviewed Preface of UpdatePharoByExample. https://github.com/SquareBracketAssociates/UpdatedPharoByExample for typos... stef

Jan. 17, 2016

Re: [Pharo-users] Fogbuz issues

by Dimitris Chloupis

ah ok did not know that is a common practice for pro devs , well if fogbuz is a pro approved tool and it works very well I am perfectly ok with using it and documenting it for newcomers. On Sun, Jan 17, 2016 at 4:40 PM Ben Coman <btc(a)openinworld.com> wrote: > On Sun, Jan 17, 2016 at 7:06 PM, Dimitris Chloupis > <kilon.alios(a)gmail.com> wrote: > > You can indeed interpret My Cases as "assigned to me" but my first > thought > > was when I saw "My Cases" is to assume that is the cases i opened. > > > > In any case I created my own custom filter with openedBy:me and saved it > as > > "My Opened Cases" and I also used the Henrik suggestion to subscribe to > all > > relevant opened and closed case I am interested for. So hopefully this is > > the end of my frustration though I am sure I will find something to > complain > > about :D > > > > So yes fogbuz is not that bad once you figure out how it works, but is > > confusing for newcomers to say the least. > > This impedance mismatch is because its a professional tool designed > for commercial in-house bug tracking, where users have no access to > it. So the "my" is "my cases" is always a developer working on > someone else's bug. In our case there is little distinction between > our users and our developers. For this reason, Fogbugz doesn't always > exactly match our needs, but I think it is sufficient, and we are > lucky to have the free access to it that we have. It would be a big > job moving, which we should delay as long as reasonably possible. > > cheers -ben > > > > > On Sun, Jan 17, 2016 at 1:01 PM Nicolai Hess <nicolaihess(a)gmail.com> > wrote: > >> > >> > >> 2016-01-17 11:43 GMT+01:00 Dimitris Chloupis <kilon.alios(a)gmail.com>: > >>> > >>> Ok let me explain > >>> > >>> if you go to My Cases it has already setup a filter for you that shows > >>> issues assigned to you, the problem is that when you open a bug report > it is > >>> not assigned to you, it actually assigned to our lovely victim , > Esteban and > >>> anyone else that cares to set the report assigned to him so even if > you add > >>> additional filter like opened by you or edited by you it will show you > zero > >>> result if you have not been assigned any of those issues which will be > the > >>> case. > >> > >> > >> Yes it is confusing but not wrong. You can interpret "My Cases" as > >> "assigned to me". > >> > >>> > >>> > >>> Instead you need to change the existing filter to assigned to Everybody > >>> so it included all bug reports and then you can add the filters you > >>> mentioned and yes then it will work. > >> > >> > >> You can define you own filters, like > >> openedBy:me status:open > >> > >>> > >>> > >>> On Sun, Jan 17, 2016 at 12:39 PM Nicolai Hess <nicolaihess(a)gmail.com> > >>> wrote: > >>>> > >>>> 2016-01-17 11:32 GMT+01:00 Dimitris Chloupis <kilon.alios(a)gmail.com>: > >>>>> > >>>>> Or the alternative is just go down, down , down the list to My Open > >>>>> Cases. Which by the way it does not just show the cases opened by > you but > >>>>> also cases you have commented on > >>>> > >>>> > >>>> > >>>> Yes, that is why I showed you the filter > >>>> editedBy:theKilon > >>>> instead of > >>>> alsoEditedBy: > >>>> > >>>> > >>>>> > >>>>> > >>>>> Welcome to the land of endless WTF :D > >>>>> > >>>>> And by the way your solution does not work either because there is a > >>>>> catch , you have to change assigned to Everybody > >>>> > >>>> > >>>> I don't understand this one. > >>>> > >>>> > >>>>> > >>>>> > >>>>> so lets all sing > >>>>> > >>>>> WTF dancing in the rain > >>>>> WTF dancing in the rain .... > >>>>> > >>>>> On Sun, Jan 17, 2016 at 12:25 PM Nicolai Hess <nicolaihess(a)gmail.com > > > >>>>> wrote: > >>>>>> > >>>>>> 2016-01-17 11:00 GMT+01:00 Dimitris Chloupis <kilon.alios(a)gmail.com > >: > >>>>>>> > >>>>>>> Since I am on a complaining spree lately let me complain once more. > >>>>>>> > >>>>>>> I really dont like Fogbuz and in order not to bore with blah blah > >>>>>>> lets get to 2 big issues > >>>>>>> > >>>>>>> 1) If you open a bug report it does not subscribe you to it, WTF > !!! > >>>>>>> Who else could be more interested in my bug report than I ? > >>>>>>> > >>>>>>> 2) If I go to My Cases its shows none of the reports I opened , > >>>>>>> actually it shows nothing, none, zero , empty space WTF^2 > >>>>>> > >>>>>> > >>>>>> Yes this is confusing, "My Cases" only shows issues "assigned to > you". > >>>>>> > >>>>>> Instaed, you can filter all cases by > >>>>>> > >>>>>> editedBy:theKilon > >>>>>> or > >>>>>> openedBy:theKilon > >>>>>> > >>>>>> > >>>>>>> > >>>>>>> > >>>>>>> And people then wonder why on earth I keep pushing for github > >>>>>>> integration, thats why ! > >

Jan. 17, 2016

Memory mapped files and Pharo (aka Unreal Engine 4 integration with Pharo)

by Dimitris Chloupis

An apology for the long post but this is not a simple issue and hence not a simple question. So I am looking into ways to integrate Pharo with Unreal to bring some nuclear powered graphics to Pharo and make us first class citizents to 2D and 3D world. For those not aware this is unreal https://www.unrealengine.com/what-is-unreal-engine-4 As suprising it may sound Unreal and Pharo share a lot in common 1) Both integrated languages with IDEs 2) Both promote live coding and live manipulation of data 3) Both promote visual coding 4) Both promote ease of use and wizard based development (aka RAD) Unreal is indeed a C++ based project made to be used by C++ coders but it comes with a very powerful visual coding language that can map visual nodes to any C++ function/Method and another common ground with Pharo is the very strict OO nature of both projects. But then OOP is very big in game development anyway. Of course my goal is not to force Pharoers to learn C++, but rather make a Pharo API so Pharo can be used to do some simple graphics development in the start and then we can continue importing more and more functionality. Unreal is generally a heavy engine that requires quite a powerful GPU but its rendering is just amazing. So how I make Pharo talk to Unreal is the million dollar question. The road of compiling Unreal as a set of DLLs to be loaded by Pharo via FFI is a road full of thorns because its quite an undertaking cause Unreal is HUGE and it will be nightmare to maintain since Unreal moves forward very fast. So we come to the subject of IPC, or Inter Process Communication. I am not new to this as you know I have build a socket bridge between Pharo and Python that allows Pharo to use Python libraries and in my implementation I focus on Blender Python API. But sockets are not exactly blazzing fast, calling functions is fine because you can even get responses bellow 1 millisecond but if try to run some heavy loops you will be in trouble. There are work arounds of course, like sending the loop with the socket and language etc but they overcomplicate something that at least in my opinion should remain simple. Another IPC method is shared memory, it is what it says , basically processes that share a place in memory where they can access the same data. Extremely fast but it has its own traps for example how to make sure the processes dont access the same data at the same time etc. So after some reading I came across to a shared memory model called Memory mapped files, basically what that means is essentially a virtual file that resides on memory (it may also reside on the hard disk or other permanent physical storage but its not necessary) that different processes can access. So in our case we can have memory mapped file that Unreal , Pharo and even Blender can access where we can store command / messages that each diffirent application must execute, let them share data and sky is the limit. Now I know this will not be a walk in the park specially to someone like me a C++ noob but I am looking for the Pharo wisemen wisewomen to guide me at least through the obstacles of this. So the questions are the following 1) Do you think this is possible with the current Pharo ? 2) Will I be limited by the fact that the VM currently does not multithread or cannot use multithreading libraries ? ( I have no intention of using multithreading but some handling of process access to the data may be necessary to make sure data is safe from concurent modification) 3) Is there anything else I should be aware of as common pitfalls for such implementation ? 4) Can the current FFI help in this task or would I need to implement this as a C DLL and load it from Pharo PS: I have no intention of messing with the Pharo VM and I also want to avoid the use of plugins as I want this to work with standard Pharo distributions.

Jan. 17, 2016

Re: [Pharo-users] Pharo Sound does not work on Pharo 4

by Dimitris Chloupis

hehe you forget who translated this chapter from French to English, though I cannot take most of the credit that belongs to Google translate :D On Sun, Jan 17, 2016 at 5:18 PM stepharo <stepharo(a)free.fr> wrote: > Can you check the attached pdf? > > > > > Le 16/1/16 13:27, Dimitris Chloupis a Ã©crit : > > even though it works fine for me in Pharo 5 (with the exception I have > > to restart the sound player because the primitive fails at times) in > > Pharo 4 I have no sound and no errors. Just Silence of the Lamps. > > > > opened bug report > > > > > https://pharo.fogbugz.com/f/cases/17402/Pharo-Sound-does-not-work-on-Pharo-4 > > > >

Jan. 17, 2016

Re: [Pharo-users] Pharo Sound does not work on Pharo 4

by stepharo

Can you check the attached pdf? Le 16/1/16 13:27, Dimitris Chloupis a Ã©crit : > even though it works fine for me in Pharo 5 (with the exception I have > to restart the sound player because the primitive fails at times) in > Pharo 4 I have no sound and no errors. Just Silence of the Lamps. > > opened bug report > > https://pharo.fogbugz.com/f/cases/17402/Pharo-Sound-does-not-work-on-Pharo-4 >

Jan. 17, 2016

Re: [Pharo-users] Morphic is super slow

by Offray Vladimir Luna CÃ¡rdenas

Hi, On 16/01/16 03:03, Dimitris Chloupis wrote: [...] > > I am not abandoning pharo, I love it even with its flaws. But I try to > outsource as much as I can my workflow from pharo to external > libraries and apps that are way more mature and efficient for what I > am trying to do. > [...] Nice to see this in your work flow. That's a similar case for mine with pandoc ;-). Cheers, Offray

Jan. 17, 2016

Re: [Pharo-users] Spec: Populating a playground with a particular content (was Re: Spec: Binding widgets how to)

by Offray Vladimir Luna CÃ¡rdenas

Thanks Johan, it's working fine. Once I have better results I'll share them with all of you. Cheers, Offray On 16/01/16 14:00, Johan Fabry wrote: > Well thatâs actually much easier. :-) What you need to do is to use the presentationClass:startOn: API method. > > | ui | > ui := GlamourPresentationModel new. > ui presentationClass: GTPlayground startOn: (GTPlayPage new saveContent: '42'). > ui openWithSpec > > I just realized that this was not clear from the examples in the class comment. I have updated the class comment to reflect this. > > I hope this resolves all your issues! > >> On Jan 16, 2016, at 14:24, Offray Vladimir Luna CÃ¡rdenas <offray(a)riseup.net> wrote: >> >> Hi, >> >> I'm still kind of lost here. If I try with these approaches I get a *new* GTPlayground window populated with content, instead of an embedded one. How can I made this GTPlayPage one that is embedded in a spec glamour interface, like the one in the minimalist example: a dictionary with two keys/values: one which is shown as text and other that is shown as a playground, both populated with the content in the dict values and both, embedded in a widget instead of on separate windows. Is this possible with the current Spec-Glamour implementation?, if not how can be it extended to make this happen? >> >> Thanks, >> >> Offray >> >> On 16/01/16 10:36, Johan Fabry wrote: >>> Ah, sorry for the confusion, for the sake of the example I oversimplified things. Letâs say that I have a GTPlayground instance that has been around for some time, and then I want to change its content. What should I do? >>> >>> | play | >>> âplay is the GTPlayground instance" >>> play := (GTPlayground new openOn: GTPlayPage new) model. >>> >>> ââ¦ lots of things happen â¦ the world turns â¦ sun and moon go up and down â¦ " >>> >>> play entity saveContent: '42'. >>> play update. >>> >>> Still like this ? >>> > > > ---> Save our in-boxes! http://emailcharter.org <--- > > Johan Fabry - http://pleiad.cl/~jfabry > PLEIAD and RyCh labs - Computer Science Department (DCC) - University of Chile > > >

Jan. 17, 2016

Re: [Pharo-users] Pharo 5 new vm crash on window resize

by Cyril Ferlicot D.

Le 16/01/2016 16:50, Johan Fabry a Ã©crit : > Hi all, > > this just happened to me: I opened a new image (todayâs build), resized it and the VM segfaulted. I am on MacOS. crash.dmp is in attachment. I have been unable to reproduce, sadly. Is this a known issue or should I add a new bug report ? > > > ---> Save our in-boxes! http://emailcharter.org <--- > > Johan Fabry - http://pleiad.cl/~jfabry > PLEIAD and RyCh labs - Computer Science Department (DCC) - University of Chile > Hi, I had this issue not long ago by resizing during the setting loading. -- Cyril Ferlicot http://www.synectique.eu 165 Avenue Bretagne Lille 59000 France

Jan. 17, 2016

Re: [Pharo-users] Pharo 5 new vm crash on window resize

by Ben Coman

So actually, just realised that a couple of times recently, although my image did not crash, a few window panes got red-screen of death, and once the Image locked up. So there is something there we need to hunt for... cheers -ben On Sun, Jan 17, 2016 at 6:23 PM, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: > I have seen this already. I avoid the problem by not resizing the window while saving with Monticello. > > Hope it helps > > Alexandre > > >> Le 16 janv. 2016 Ã 12:50, Johan Fabry <jfabry(a)dcc.uchile.cl> a Ã©crit : >> >> Hi all, >> >> this just happened to me: I opened a new image (todayâs build), resized it and the VM segfaulted. I am on MacOS. crash.dmp is in attachment. I have been unable to reproduce, sadly. Is this a known issue or should I add a new bug report ? >> >> >> <crash.dmp> >> >> >> ---> Save our in-boxes! http://emailcharter.org <--- >> >> Johan Fabry - http://pleiad.cl/~jfabry >> PLEIAD and RyCh labs - Computer Science Department (DCC) - University of Chile >> >

Jan. 17, 2016