May 2010 - Pharo-dev - lists.pharo.org

[Pharo-project] is MVC package somewhere?
by Esteban Lorenzano May 8, 2010

May 8, 2010

Hi, AFAIK, MVC was removed from Pharo 1.1... I wonder where is the extracted package. Cheers, Esteban

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[Pharo-project] infinite loop when Locale changed
by Hilaire Fernandes May 8, 2010

May 8, 2010

What is the use to call StrikeFont localeChanged. It is provocing an infinite loop when Locale is changed it comes from the StrikeFont localeChanged message What is supposed to do StrikeFont localeChanged ? Hilaire Locale class>>localeChanged #(#ParagraphEditor) do: [ :key | Smalltalk globals at: key ifPresent: [ :class | class initialize ] ]. StrikeFont localeChanged. Project localeChanged http://code.google.com/p/pharo/issues/detail?id=2391

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Re: [Pharo-project] another fun case for Linked>>add:
by Ralph Boland May 7, 2010

May 7, 2010

> +1. > OrderedCollection's addLast/removeFirst/removeLast, is enough to use > them as lists. > > About performance, i am little concerned. > Linked lists is good , that is costs you a constant time for each new > element you adding. > While for OrderedCollections it vary depending on container state. In > most cases, it costs you as little as for linked lists, but when > contained is not big enough to hold all elements - then it has to grow > and consuming a lot more time comparing to adding a previous element. > Given that the amortized cost is still O(1) per add or remove when using OrderedCollections I think the cost of the grows can be ignored unless the OrderedCollections are so large as to cause memory or memory management problems or if your algorithm is real time and cannot tolerate the occasional slowdown during a grow operation. In the latter situation I ask: why are you using an automatic garbage collected language such as Smalltalk? I expect the performance of OrderedCollections used as stacks or queues to be good compared to linked lists. Regards, Ralph Boland -- Quantum Theory cannot save us from the tyranny of a deterministic universe but it does give God something to do

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[Pharo-project] Set + collect:
by GermÃ¡n Leiva May 7, 2010

May 7, 2010

Hi, this is my first post (please be gentle xD) The *#collect:* message commonly return a new collection like the receiver, but this is really unpractical in some cases e.g. col := Set with: 'one'->1 with: 'two'->2 with: 'dos'->2. (col collect: [:each | each value ]) sum In this example *#sum* will return 3 *instead of 5* (I searched a test for * #sum* but I didnÂ´t find it). Ok, I can use the message *#asBag* (or something like that) but does the second line have to depend on the type of the receiver (i.e. the type of col )? For example, the implementation of* #collect:* in SortedCollection returns an OrderedCollection (in the current image) and in other dialects the message *#collect:* when the receiver is a Set returns a Bag ... Basically, what do you think of an implementation like this? Set >> collect: aBlock *"Evaluate aBlock with each of the receiver's elements as the argument. Collect the resulting values into a Bag. Answer the new collection."* | newBag | newBag := *Bag *new: self size. array do: [:each | each ifNotNil: [newBag add: (aBlock value: each)]]. ^ newBag Cordially, -- GermÃ¡n Leiva LeivaGerman(a)gmail.com

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[Pharo-project] Settings Browser
by Geert Claes May 7, 2010

May 7, 2010

I have to say that the new Settings Browser in 1.1 is a huge improvement over the old Preference Browser. It's just that I can't seem to figure out how to save the settings I have changed? I did noticed the "Style > New/Update/Load/Browse/Remove". I managed to create a new style, but when selecting "Style>Update" I get this tiny window titled "Choose" with a wee white box and a Cancel button? Am I missing something? ps. What is the "Blab email" in the Network section? http://n4.nabble.com/file/n2132539/Settings_Browser.png -- View this message in context: http://forum.world.st/Settings-Browser-tp2132539p2132539.html Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

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[Pharo-project] Class variable
by Hilaire Fernandes May 7, 2010

May 7, 2010

When I look at the class NaturalLanguageTranslator, I see the class method allKnownPhrases refering a class variable AllKnownPhrases, however I don't see this variable defined in the class nor in the ancestor. How can it be? Hilaire

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[Pharo-project] bug in the code of CompiledMethod >> =
by Cyrille Delaunay May 7, 2010

May 7, 2010

try in a Pharo-1.0-10515-rc3 image : |set| set := Set new. Collection withAllSubclasses do: [:aClass | set addAll: aClass methods ]. It will raise an exception telling: "MessageNotUnderstood: ByteSymbol>>analogousCodeTo:". Indeed, in the code of CompiledMethod >> = , the message 'analogousCodeTo:' is send to a symbol. I opened an Issue: http://code.google.com/p/pharo/issues/detail?id=2185

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[Pharo-project] gettext package
by Hilaire Fernandes May 7, 2010

May 7, 2010

I have move in a Gettext package in PharoInbox classes for gettext support. Do not expect it to work. Some of the classes there, are just moved from former categories in pharo System-Localization and Multilingual other are coming from Etoys. I have not yet test to load it in a fresh image. Hilaire

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Re: [Pharo-project] [Metacello] Fwd: Metacello questions
by Dale Henrichs May 7, 2010

May 7, 2010

----- "Andreas.Raab" <andreas.raab(a)gmail.com> wrote: | 3) When exactly is HelpSystem loaded? | | What I'm wondering about in the above is that HelpSystem should only | be | loaded if WebClient-Help is being loaded. Is this implicitly part of | specifying a 'project' instead of a 'package'? Or is there some other | way of specifying that? | | I guess really the question here is what entities get loaded | implicitly | simply by declaring them (packages for sure, any others?) and what | entities need to be 'required' in order to be loaded? Andreas, Here's the Transcript from a (successful) load of WebClient: Loading 1.0 of ConfigurationOfWebClient... Fetched -> ConfigurationOfHelpSystem-tbn.12 Loaded -> ConfigurationOfHelpSystem-tbn.12 Fetched -> WebClient-Core-ar.15 Fetched -> WebClient-Tests-ar.7 Fetched -> WebClient-HTTP-ar.1 Project: HelpSystem Fetched -> HelpSystem-Core-tbn.40 Fetched -> HelpSystem-Tests-tbn.9 Fetched -> Pharo-Project-Help-tbn.8 Fetched -> WebClient-Help-ar.4 Fetched -> WebClient-Pharo-ar.1 Starting atomic load Loaded -> WebClient-Core-ar.15 Loaded -> WebClient-Tests-ar.7 Loaded -> WebClient-HTTP-ar.1 Finished atomic load Loaded -> HelpSystem-Core-tbn.40 Loaded -> HelpSystem-Tests-tbn.9 Loaded -> Pharo-Project-Help-tbn.8 Starting atomic load Loaded -> WebClient-Help-ar.4 Loaded -> WebClient-Pharo-ar.1 Finished atomic load Evaluated -> 1.1 [ConfigurationOfHelpSystem] >> openHelpBrowser In your configuration you had specified that WebClient-Help required the Help System, so you can see that the load of the Help System was inserted at that point in the load (which is what triggered the bug, too). The order of specifying packages/projects implies the order that things will be loaded in. With #requires:, the load order is explicit. I would recommend that you explicitly use #requires: unless only one or two packages are involved. The implicit load order is not obvious when you introduce conditional loading (with #squeakCommon #squeak, and #pharo), so if load order matters I would explicitly declare the relationships. The other aspect besides load order is what you want loaded. By default all packages/projects are loaded, but you can define a 'default' group which would be used to specify a subset of the packages/projects that are loaded by default. This is useful if you want to control whether or not a set of packages (say tests) are loaded or not ... I don't think I've completely answered your questions so we might want to continue the dialog on this question.... Dale

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Re: [Pharo-project] Metacello questions
by Dale Henrichs May 6, 2010

May 6, 2010

Andreas, You have bumped into a bug in Metacello 1.0-beta.26. I discovered the bug a couple of weeks ago while using Metacello in GLASS so the bug is fixed in Metacello 1.0-beta.26.1. 1.0-beta.26.1 is under development (#development blessing) so is not loaded by #latestVersion. I am a couple of days away from releasing 1.0-beta.26.1 but if you want to try it out, you can explicitly load 1.0-beta.26.1 with this expression: (ConfigurationOfMetacello project version: '1.0-beta.26.1') load The bug was triggered because ConfigurationOfWebClient uses an #atomic load and ConfigurationOfHelpBrowser uses #linear loads ... the help browser packages were missed in the transition. The default configuration template sets the loadType to #linear, so you hit this specifically because you didn't use the template, which relates to your other questions so I'll answer them in another letter. Dale ----- "Andreas Raab" <andreas.raab(a)gmx.de> wrote: | On 5/6/2010 10:29 AM, Dale wrote: | > The documentation is correct and your understanding is correct ... | at the | > moment I'm not exactly sure why the Help System is not loaded in | your case | > ... if you could share your complete config, what version of Squeak | you are | > working with and the expression you use to load (privately if you | want), I | > might be able to figure out the answer to your question... | | Tried both on Squeak 4.1 and Pharo 1.0 with the same results. Here is | | the script for Squeak: | | (Installer repository: 'http://seaside.gemstone.com/ss/metacello) | install: 'ConfigurationOfMetacello'. | (Smalltalk at: #ConfigurationOfMetacello) project latestVersion load. | | (Installer repository: | 'http://www.squeaksource.com/MetacelloRepository) | install: 'ConfigurationOfWebClient'. | (Smalltalk at: #ConfigurationOfWebClient) project latestVersion load. | | | Again, the strange thing is that it 'fetches' the right files but | doesn't load them. | | Cheers, | - Andreas

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