January 2013 - Pharo-dev - lists.pharo.org

[Pharo-project] dynamically create a block - how?
by Sabine KnÃ¶fel Jan. 24, 2013

Jan. 24, 2013

Hi, I want to create a block like this: dayNamesShortBlock ^ ['SoMoDiMiDoFrSa' ] "this works" But in my case, the contents of the block is the result of a method. dayNamesShortBlock ^ [self dayNamesGermanString]. "does not work" dayNamesGermanString ^'SoMoDiMiDoFrSa' So my question is how can I generate a Block dynamically? Sabine -- View this message in context: http://forum.world.st/dynamically-create-a-block-how-tp4665094.html Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

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[Pharo-project] [update 2.0] #20485
by Esteban Lorenzano Jan. 24, 2013

Jan. 24, 2013

20485 ----- Issue 7312: Clean in Polymorph http://code.google.com/p/pharo/issues/detail?id=7312 Issue 7292: Autocomplete partial matches http://code.google.com/p/pharo/issues/detail?id=7292 Issue 7236: "RPackage organizer packages" returns wrong packages http://code.google.com/p/pharo/issues/detail?id=7236 Diff information: http://ss3.gemstone.com/ss/Pharo20/Tools-EstebanLorenzano.1016.diff http://ss3.gemstone.com/ss/Pharo20/RPackage-Core-EstebanLorenzano.202.diff http://ss3.gemstone.com/ss/Pharo20/Polymorph-Widgets-EstebanLorenzano.756.d… http://ss3.gemstone.com/ss/Pharo20/NautilusRefactoring-EstebanLorenzano.64.… http://ss3.gemstone.com/ss/Pharo20/NECompletion-EstebanLorenzano.74.diff

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[Pharo-project] pharotaskforces broken on squeaksource
by Torsten Bergmann Jan. 24, 2013

Jan. 24, 2013

> Anyone know why this happened? Just a guess: the lates package from 2013-01-22 17:26:46 was named "Manifest-CriticBrowser-SimonAllier.41.mcz.mcz" with two ".mcz" endings. Maybe this is problematic... Bye T.

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[Pharo-project] about Loom profiler
by StÃ©phane Ducasse Jan. 23, 2013

Jan. 23, 2013

Hi alex how Loom compares with the fixes that andreas added to the default profiler. I do not know if the code is in squeak because this code was licensed under GPL. But I would like to know if your profiler takes into account the problems solved by andreas. I did not see an announce of Loom (by the way Loom is the name of large oo memory developed by the original smalltalk team a while ago). http://objectprofile.com/loom-download.html I'm know that some people got problem with our profiler and I would like to see how we can improve it. Stef

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[Pharo-project] NativeBoost and unions
by Ciprian Teodorov Jan. 23, 2013

Jan. 23, 2013

Hi Igor, as usual after squeaksource restart, i lost my commit rights on the NativeBoost repository... This time I have a small refactoring in the NBExternalStruct/NBExternalStructFields to enable union support. Besides that, c unions, I have implemented a first prototype, and now my question for you is: Should I add it in nativeboost (its rightful place in my opinion), or should I keep it only as support code for my TalkFFI project(in TalkFFI-runtime)? What do you think? Cheers, Ciprian -- Dr. Ciprian TEODOROV IngÃ©nieur DÃ©veloppement CAO tÃ©l : 06 08 54 73 48 mail : ciprian.teodorov(a)gmail.com www.teodorov.ro

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[Pharo-project] about the VM and Pharo
by Esteban Lorenzano Jan. 23, 2013

Jan. 23, 2013

Hi, Maybe this was talked before, and everybody knows what I'm going to say, but I want to talk about one of the issues we are tackling for 2.0 release: The VM and its Plugins. Of course you all know that at least for now (and the next couple of years, he), we use Eliot's Cog for running Pharo. But probably some of you don't know that we actually make some changes to the VM in order to make it suitable for Pharo. This changes are sometimes incorporated to the regular VM, but some others not. So, part of our work is to keep the sources in sync with Eliot's trunk and introduce our "things" in it. What are those things? Well, a small list: - the adaptation of interpreter to run NativeBoost - external semaphores enhancement to grow easily over 250. - ephemerons support. in the plugins area, this year we improved some of the existing ones: - FilePlugin, now can retrieve file permissions and knows if file is a symlink - SerialPlugin, now works in Macs (it was never implemented) in addition, we are supporting the Cocoa VM for Mac (the Cocoa framework for Mac is the Objective-C replacement for Carbon, the old and legacy UI framework), and thanks to Mariano and Square[i] now we have headless support for macs (we are just missing complete headless support for windows, now). So, for Pharo 2.0 now we are working on this twi issues: - Stability! We need a stable VM, and as I already said it, we still have some problems there. - Improve the build process, to make it easier. - Branding. We need a VM that says "Pharo" and not "Cog" or "Squeak"... why? just because we make Pharo :) also, if we improve this process, then ppl doing desktop applications can reproduce it with their own branding (I suppose if you do a Mac or Windows app, you want your icon in the dock bar, not a pharo, or a cog, or a mouse... and in mac is trivial to adapt, but in windows is complicated :) Pharo 2.0 will be released with a stable, branded vm with a bunch of useful plugins and libraries (like freetype) and out-of-the-box support for NativeBoost. For Pharo 3.0 we are even more ambitious: we want to start replacing some important parts of the vm with plugins (like extract a "DisplayPlugin", so we can control from image side the initialization of a morphic world or something extra. And we want to replace BitBlt plugin with Athens, so that will keep us busy enough time. Cheers, Esteban

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[Pharo-project] TxTextMorph based on new text model
by Denis Kudriashov Jan. 23, 2013

Jan. 23, 2013

Hello. I upload new version of TxText with new TxTextMorph which can show TxTextModel (http://www.smalltalkhub.com/#!/~sig/TxText ). See class side examples. *Implementation details:* TxTextMorph has textLayout instance variable which contains full precomputed information to draw text on screen. TxTextLayout contains collection of TxTextLine. TxTextLine contains collection of span objects (from text model) and offset with extent required for drawing lines (with right align for example). There are TxTextLayoutStrategy hierarchy responsible for building specific text layout objects: - TxSimpleTextLayoutStrategy build layout with actual text lines which text model contains - TxWrapTextStrategy build layout with lines which satisfied preferredExtent (given from text morph bounds) When text morph accepts new text model It asks layoutStrategy to build new layout. Then align selector applyed to layout. So text can be placed left to right, centered or right to left. Morph drawing method very simple: TxTextMorph>>drawOn: aCanvas textLayout drawTextOn: aCanvas at: self position TxTextLayout>>drawTextOn: aCanvas at: aPoint | topOffset linePosition | topOffset := 0. lines do: [:eachLine | linePosition := aPoint x @ (aPoint y + topOffset). eachLine drawOn: aCanvas at: linePosition. topOffset := topOffset + eachLine height. ] TxTextLine>>drawOn: aCanvas at: aPoint spans do: [:each | each drawOn: aCanvas at: aPoint + offset ] At the end TxCharactersSpan draw contents on canvas: TxCharactersSpan >>drawOn: aCanvas at: aPoint aCanvas drawString: characters at: aPoint font: (self getAttribute: TxFontAttribute) color: (self getAttribute: TxColorAttribute) And with Athens api text attributes can be not hardcoded: TxCharactersSpan >>drawAthensOn: aCanvas at: aPoint attributes applyOn: aCanvas. aCanvas pathTransform translateX: aPoint x Y: aPoint y. aCanvas drawString: characters *Questions:* Now text alignment (like centering) is property of TxTextMorph. So it global property of full text layout. But how such attribute can be applied to specific line? TxModel is list of spans. And each span object contains characters with same text attributes like font or color. Text alignment can be such attribute too. Do you think it should be attribute of all spans from single line? Or it should be only attribute of TxLineSeparator span? What your idea? *Future:* Next plan: cursor navigation, text selection and editing features. And of course tests, sorry I not start with tests now. I wait your comments , ideas and questions. Maybe you don't like my approach. I want to know why. I really want clean and object solution for text stuff in pharo.

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[Pharo-project] [update 2.0] #20484
by Marcus Denker Jan. 23, 2013

Jan. 23, 2013

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[Pharo-project] Must OSPlatform class>>osVersion be deprecated?
by David T. Lewis Jan. 23, 2013

Jan. 23, 2013

Why is OSPlatform class>>osVersion deprecated but OSPlatform class>>platformName is not? My suggestion would be to comment #osVersion as being a synonym for #version, but do not deprecate it. That would enable use of "Smalltalk os version", and it would also support "OSPlatform osVersion", both of which make logical sense. It would also maintain support for external packages that rely on #osVersion to figure out platform differences. The reason that I am asking is that I am trying to find a way to make OSProcess class>>osVersion work on Pharo 2.0, Pharo1.x, and the various versions of Squeak and Cuis. I quite honestly cannot figure out any way to add Pharo 2.0 without breaking one more more of the other supported images. If OSPlatform class>>osVersion did not raise a deprecation warning, then I could make it work. Thanks, Dave

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Re: [Pharo-project] Athens replacement for ImageReadWriter?
by Fernando Olivero Jan. 23, 2013

Jan. 23, 2013

What you can with Athens and the Cairo backend is: 1) create a surface in memory 2) draw to the surface 3) export that surface to a png 4) import that png into a form The main point is step 3, cairo can export any surface to a png. Then within Pharo, any form can be created from a png. Also, if you interested in drawing from Athens into a form directly, look at the AthensDemoExamples, and Igor's magic trick of matching the bits of the surface (step 1), directly to the bits of an "external" form. to avoid steps 3 and 4. He used the surface plugin for that. Hope i answered all your questions, though not sure because i've never used ImageReadWriter. Fernando On Wed, Jan 23, 2013 at 6:38 AM, Denis Kudriashov <dionisiydk(a)gmail.com>wrote: > I have same question :)) > > 2013/1/23 Esteban Lorenzano <estebanlm(a)gmail.com<mailto: > estebanlm(a)gmail.com>> > Hi, > > So, ImageReadWriter currently reads image files and retrieve Form objects, > who can be displayed in world... > anybody knows (cough, cough, Igor) what would be the Athens replacement > for that? > > thanks, > Esteban > > > >

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