- Pharo-users - lists.pharo.org

Creation form from PNG file very slow on Pharo 4 and 5
by Dimitris Chloupis Jan. 19, 2016

Jan. 19, 2016

Seems that creating forms and morph from pngs is super slow opened bug report https://pharo.fogbugz.com/f/cases/17403/Creating-Forms-from-PNGs-is-very-sl…

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spotter: top search for senders and references
by Tudor Girba Jan. 19, 2016

Jan. 19, 2016

Hi, With the latest GT integration, we also integrated the search for senders and references from the first step. Here is a detailed explanation about it, including what we still want to do, how itâs done, and how to discover what else is around: http://www.humane-assessment.com/blog/spotting-senders-references-with-gtsp… Please let us know what you think. Cheers, Doru -- www.tudorgirba.com www.feenk.com "Problem solving efficiency grows with the abstractness level of problem understanding."

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unplanned outage: http://ss3.gemstone.com/ and http://seaside.gemtalksystems.com/ss
by Dale Henrichs Jan. 19, 2016

Jan. 19, 2016

The datacenter where the sites http://ss3.gemstone.com/ and http://seaside.gemtalksystems.com/ss are hosted lost their primary router, while the backup router was being repaired ... the machines hosting the two sites are up and running, so no data loss is expected. They are working on getting another router in=place, but no ETA is known at this time ... Dale

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a new version of gtdebugger
by Tudor Girba Jan. 18, 2016

Jan. 18, 2016

Hi, A new version of GTDebugger was just integrated. Several issues were addressed. Some more notable things are: - the stack shows columns for class, method, other info - there are new keybindings in place that do not collide with the text editor - the accept/cancel buttons are in the contextual menu at least for Pharo 5 - the variables pane received a label There are still some things todos left like: - the columns in the stack should be resizable - thisContext, stackTop - perhaps make the key bindings controllable through settings We kindly invite everyone to test it and provide feedback. Cheers, Doru -- www.tudorgirba.com www.feenk.com "Quality cannot be an afterthought."

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Fogbuz issues
by Dimitris Chloupis Jan. 18, 2016

Jan. 18, 2016

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 And people then wonder why on earth I keep pushing for github integration, thats why !

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Re: [Pharo-users] Updated Pharo by Example
by stepharo Jan. 18, 2016

Jan. 18, 2016

Thanks! Fixed! Le 18/1/16 12:37, Manfred KrÃ¶hnert via Pharo-users a Ã©crit :

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Re: [Pharo-users] Updated Pharo by Example
by Ãzel Ders METU Jan. 18, 2016

Jan. 18, 2016

How can I effectively unsubscribe from this email group. On Mon, Jan 18, 2016 at 10:26 AM, Manfred KrÃ¶hnert < pharo-users(a)lists.pharo.org> wrote: > > > ---------- Forwarded message ---------- > From: "Manfred KrÃ¶hnert" <mkroehnert42(a)googlemail.com> > To: Any question about pharo is welcome <pharo-users(a)lists.pharo.org> > Cc: > Date: Mon, 18 Jan 2016 09:25:25 +0100 > Subject: Re: [Pharo-users] Updated Pharo by Example > Hi, > > I just read through the Preface and it reads very well. > However, I found three small issues. > > On page 1 at the bottom there is "Seasideweb development" which I guess > should read "Seaside web development". > > On page 2 there is "MacOSX" as supported platform which Apple renamed to > "OS X" some time ago (OS X instead of MacOSX: > https://en.wikipedia.org/wiki/OS_X) > > Also on page 2 I read the sentence "You can make an impact on Pharo" but > to me it was not really obvious how this sentence relates to the paragraph > it belongs to or how you actually can make an impact on Pharo. > > Hope this helps, > Manfred > > > On Sun, Jan 17, 2016 at 6:33 PM, stepharo <stepharo(a)free.fr> wrote: > >> Here is the reviewed Preface of UpdatePharoByExample. >> >> https://github.com/SquareBracketAssociates/UpdatedPharoByExample for >> typos... >> >> stef >> > > >

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Memory mapped files and Pharo (aka Unreal Engine 4 integration with Pharo)
by Dimitris Chloupis Jan. 18, 2016

Jan. 18, 2016

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.

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Updated Pharo by Example
by stepharo Jan. 18, 2016

Jan. 18, 2016

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

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Pharo Sound does not work on Pharo 4
by Dimitris Chloupis Jan. 17, 2016

Jan. 17, 2016

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

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