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[ANN] Pharo Sprint First half 2017

by Marcus Denker

Hi, As this year, there will be again âPharo Sprintsâ next year. At these dates we meet (virtual or real) to work on boring (or complex) issues together: Jan 27 Mar 3 Mar 31 Apr 28 May 26 Jun 30 Local sprints: - University of Chile (DCC). Not January, but likely the other dates - Inria Lille: All - Remote: All. We will try to improve remote sprint experience next year! - The sprints will be added to https://association.pharo.org/events Marcus

Dec. 23, 2016

Re: [Pharo-users] Scaled image

by Henrik Nergaard

You can use WarpBlt to scale the form. | input output | input := Smalltalk ui icons iconNamed: #class. output := Form extent: 128 asPoint depth: 32. (WarpBlt toForm: output) sourceForm: input; cellSize: 1; combinationRule: Form over; copyQuad: input boundingBox innerCorners toRect: (0 asPoint extent: 127 asPoint). output writePNGFileNamed: 'somefile.png' Best regards, Henrik From: Pharo-users [mailto:pharo-users-bounces@lists.pharo.org] On Behalf Of Trussardi Dario Romano Sent: Thursday, December 22, 2016 6:45 PM To: Any question about pharo is welcome <pharo-users(a)lists.pharo.org> Subject: Re: [Pharo-users] Scaled image Ciao, Morphs have an extent method that you can passes the size as a point in the x@y format, there are also width: and height: methods that take simple numbers Can explain what i need do with some code, example ? After the scaled i need to save the new scaled image on the disk. Thanks On Thu, Dec 22, 2016 at 6:02 PM Trussardi Dario Romano <dario.trussardi(a)tiscali.it<mailto:dario.trussardi@tiscali.it>> wrote: Ciao, after upload an image ( with MAFileDescription support ) i need to create the relative logo image with specific size 128 x 128 px. How i can scale the image into Pharo? And for deployment system based on Gemstone ? Thanks, Dario

Dec. 22, 2016

Re: [Pharo-users] Modeling a join table

by sergio ruiz

Are you going to use relational database to store this data? Or you goint to use image saving / object-oriented DB for persistence? iâd like to use voyage.. so i can use MongoDB for persistence.. 1) Are there strong asymmetry in queries? Which kind of queries are more frequent: "give me tags of this radio" or "give me radios with this tag"? i would say that at the end of the day, it is going to be about the same.. lots and lots of each call.. 2) Do you need to store other information EXCEPT fact that that radio is marked by this tag? For example, do you need to store the time tag was assigned to the station or the user who have assigned it? You got the idea, I believe. i am going to guess that there will be more information on this.. as in.. who created the tag.. so i can import JUST that userâs tags for their list.. while maintaining a set of tags as default tags.. 3) Are queries simple "stations with tag X" / "tags of station X", or they may often looks like "stations with tag A or B, but not both" or something even more complicated. queries will simply be.. give me all stations with this tag.. Â or these tags.. thanks! ---- peace, sergio photographer, journalist, visionary Public Key:Â http://bit.ly/29z9fG0 #BitMessageÂ BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV http://www.Village-Buzz.com http://www.ThoseOptimizeGuys.com http://www.coffee-black.com http://www.painlessfrugality.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

Dec. 22, 2016

Re: [Pharo-users] Scaled image

by Stephan Eggermont

On 22/12/16 17:01, Trussardi Dario Romano wrote: > Ciao, > > after upload an image ( with MAFileDescription support ) > > i need to create the relative logo image with specific size 128 x 128 px. > > How i can scale the image into Pharo? You can, but you might not want to. Scaling images is rather slow, you often want an external process for that, especially if you want to operate from disk to disk. You do not want to block your image too long, and you might want to have your front-end web server serve those logo's instead of your smalltalk image. ImageMagick can be useful there. Stephan

Dec. 22, 2016

Re: [Pharo-users] Scaled image

by Trussardi Dario Romano

Ciao, > Morphs have an extent method that you can passes the size as a point in the x@y format, there are also width: and height: methods that take simple numbers Can explain what i need do with some code, example ? After the scaled i need to save the new scaled image on the disk. Thanks > > On Thu, Dec 22, 2016 at 6:02 PM Trussardi Dario Romano <dario.trussardi(a)tiscali.it> wrote: > Ciao, > > after upload an image ( with MAFileDescription support ) > > i need to create the relative logo image with specific size 128 x 128 px. > > How i can scale the image into Pharo? > > And for deployment system based on Gemstone ? > > Thanks, > > Dario >

Dec. 22, 2016

Re: [Pharo-users] Scaled image

by Dimitris Chloupis

Morphs have an extent method that you can passes the size as a point in the x@y format, there are also width: and height: methods that take simple numbers On Thu, Dec 22, 2016 at 6:02 PM Trussardi Dario Romano < dario.trussardi(a)tiscali.it> wrote: > Ciao, > > after upload an image ( with MAFileDescription support ) > > i need to create the relative logo image with specific size 128 x > 128 px. > > How i can scale the image into Pharo? > > And for deployment system based on Gemstone ? > > Thanks, > > Dario > >

Dec. 22, 2016

Scaled image

by Trussardi Dario Romano

Ciao, after upload an image ( with MAFileDescription support ) i need to create the relative logo image with specific size 128 x 128 px. How i can scale the image into Pharo? And for deployment system based on Gemstone ? Thanks, Dario

Dec. 22, 2016

Workspace/Playground/System browser documentation

by Dimitris Chloupis

I am interested into any form of documentation , besides the obvious one (class comments and unit tests) , concerning Workspace, Playgrounds, System Browser, Inspector and Debugger . I am only interested only on documentation about the internals of those tools, I have already studied documentation about their usages and how can be extended from the usual sources. Is there any or am I asking too much ? I will be creating my own System Browser and Workspace in the near future so its important to not replicate code and use what there is already there. But to use code means that I have to understand it first.

Dec. 22, 2016

Re: [Pharo-users] FFI on MacOS 10.12 using Pharo 5

by Dimitris Chloupis

Love UFFI , its opens a universe of possibilities for Pharo, an insane amount of technology that Pharo can take advantage of through it. Big thanks to Esteban and anyone that contributed to the continued evolution of FFIs. I would not be using Pharo if it was not for their efforts. On Wed, Dec 21, 2016 at 11:07 AM Jay Hardesty <jayhardesty(a)gmail.com> wrote: > Thx - yes exactly the same path I took - strictly 32-bit (i386) worked, in > my > case on Sierra. > Jay > > > > -- > View this message in context: > http://forum.world.st/FFI-on-MacOS-10-12-using-Pharo-5-tp4927537p4927740.ht… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

Dec. 22, 2016

Re: [Pharo-users] [Moose-dev] Design Challenge: metrics missing value...

by stepharong

Yes I see. I will keep thinking about it. On Wed, 21 Dec 2016 20:58:26 +0100, Tudor Girba <tudor(a)tudorgirba.com> wrote: > Hi, > >> On Dec 21, 2016, at 3:05 PM, stepharong <stepharong(a)free.fr> wrote: >> >> >> >>> Hi Alex, >>> >>> Following the design proposed by Stef, in your case you would use a >>> different collection. >> >> Doru I have multiple missingValue so that they embed their own strategy. >> Now I do not know for the scenario of alex. > > Yes, yes. And that is great. > > It seemed to me that Alex wanted to find from the collection the > elements that have a MissingValue, and for that he wants to use > collect:. But, your collection collect: ignores the MissingValue. That > is why I thought that he can serve his case with another collection type. > > Cheers, > Doru > > >>> >>> Cheers, >>> Doru >>> >>> >>>> On Dec 21, 2016, at 8:13 AM, Alexandre Bergel >>>> <alexandre.bergel(a)me.com> wrote: >>>> >>>> Hi Stef, >>>> >>>> You are raising an interesting point to discuss. This MissingValue is >>>> indeed better than having -1 >>>> Something to keep in mind: it may be that one would like to focus on >>>> the missing value and not really the value. >>>> >>>> Consider: >>>> >>>>> testCollect >>>>> >>>>> | uarray collected | >>>>> uarray := UniformOrderedCollection new. >>>>> uarray add: 10. >>>>> uarray add: 20. >>>>> uarray add: (MissingValue discarding). >>>>> collected := uarray collect: [ :each | each ]. >>>>> self assert: collected size equals: 2. >>>> >>>> It could well be that I would like to be able to query over the >>>> MissingValue. >>>> Can something like possible: uarray collect: #isMissing >>>> ? >>>> >>>> Cheers, >>>> Alexandre >>>> >>>> >>>>> On Dec 20, 2016, at 10:15 PM, stepharong <stepharong(a)free.fr> wrote: >>>>> >>>>> Hi dear great OO designers >>>>> >>>>> Here is a little challenges for your brainy souls :) >>>>> >>>>> In Moose when we compute metrics it may happen than a tool (often >>>>> external to pharo) does not compute a metrics >>>>> and when we request it in moose we check and often we return a not >>>>> so good -1. >>>>> >>>>> I'm trying to brainstorm on a solution >>>>> >>>>> - first may be the simplest way is to not invoke a metrics when it >>>>> is not computed. But it means that we should know it and that we >>>>> should have a registration mechanism. After all this is probably the >>>>> best solution. >>>>> >>>>> - Second we were thinking to use exception but when we have multiple >>>>> entities missing one metrics.... I have serious doubts. >>>>> >>>>> - Second I was thinking about having the following behavior >>>>> >>>>> testCollect >>>>> >>>>> | uarray collected | >>>>> uarray := UniformOrderedCollection new. >>>>> uarray add: 10. >>>>> uarray add: 20. >>>>> uarray add: (MissingValue discarding). >>>>> collected := uarray collect: [ :each | each ]. >>>>> self assert: collected size equals: 2. >>>>> >>>>> testDo >>>>> >>>>> | res uarray | >>>>> uarray := UniformOrderedCollection new. >>>>> uarray add: 10. >>>>> uarray add: 20. >>>>> uarray add: (MissingValue discarding). >>>>> uarray add: 40. >>>>> res := 0. >>>>> uarray do: [ :each | res := res + each ]. >>>>> self assert: res equals: 70. >>>>> >>>>> >>>>> testCollectDefaulting >>>>> >>>>> | uarray collected | >>>>> uarray := UniformOrderedCollection new. >>>>> uarray add: 10. >>>>> uarray add: 20. >>>>> uarray add: (MissingValue default: 33). >>>>> collected := uarray collect: [ :each | each ]. >>>>> self assert: collected size equals: 3. >>>>> self assert: collected third equals: 33 >>>>> >>>>> >>>>> I basically started to implement >>>>> >>>>> >>>>> do: aBlock >>>>> "Refer to the comment in Collection|do:." >>>>> 1 to: self size do: >>>>> [:index | (self at: index) toDo: aBlock on: self] >>>>> >>>>> >>>>> >>>>> collect: aBlock >>>>> "Evaluate aBlock with each of the receiver's elements as the >>>>> argument. >>>>> Collect the resulting values into a collection like the receiver. >>>>> Answer >>>>> the new collection." >>>>> >>>>> | newCollection | >>>>> newCollection := self species new. >>>>> self >>>>> do: [ :each | each toCollect: aBlock on: newCollection ]. >>>>> ^ newCollection >>>>> >>>>> >>>>> and >>>>> >>>>> DiscardingValue >> toCollect: aBlock on: aCollection >>>>> "discard computation" >>>>> ^ self >>>>> >>>>> >>>>> Object >> toCollect: aBlock on: aCollection >>>>> >>>>> ^ aCollection add: (aBlock value: self) >>>>> >>>>> >>>>> So I imagine that you see the design and I wanted to get your point >>>>> of view. >>>>> >>>>> -- >>>>> Using Opera a kind of bad mail client but far better than thunderbird >>>>> _______________________________________________ >>>>> Moose-dev mailing list >>>>> Moose-dev(a)list.inf.unibe.ch >>>>> https://www.list.inf.unibe.ch/listinfo/moose-dev >>>> >>>> -- >>>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >>>> Alexandre Bergel http://www.bergel.eu >>>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >>>> >>>> >>>> >>>> _______________________________________________ >>>> Moose-dev mailing list >>>> Moose-dev(a)list.inf.unibe.ch >>>> https://www.list.inf.unibe.ch/listinfo/moose-dev >>> >>> -- >>> www.tudorgirba.com >>> www.feenk.com >>> >>> "If you interrupt the barber while he is cutting your hair, >>> you will end up with a messy haircut." >>> >>> >> >> >> -- >> Using Opera's mail client: http://www.opera.com/mail/ > > -- > www.tudorgirba.com > www.feenk.com > > âThe smaller and more pervasive the hardware becomes, the more physical > the software gets." > -- Using Opera's mail client: http://www.opera.com/mail/

Dec. 22, 2016