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

[pharo-project/pharo-core] 80426c: 30570
by GitHub Nov. 13, 2013

Nov. 13, 2013

Branch: refs/heads/3.0 Home: https://github.com/pharo-project/pharo-core Commit: 80426c3280e89d9e72ab38aac1f75f5353560448 https://github.com/pharo-project/pharo-core/commit/80426c3280e89d9e72ab38aa… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2013-11-13 (Wed, 13 Nov 2013) Changed paths: A Keymapping-Core.package/KMCategory.class/instance/associating/removeKeymapEntry_.st A Keymapping-Core.package/KMCategory.class/instance/binding/keymapForShortcut_.st A Keymapping-Core.package/KMDispatcher.class/instance/building/keymapForShortcut_.st A Keymapping-Core.package/KMDispatcher.class/instance/building/removeKeyCombination_.st M Keymapping-Core.package/KMStorage.class/definition.st M Keymapping-Core.package/KMStorage.class/instance/accessing/add_.st A Keymapping-Core.package/KMStorage.class/instance/accessing/keymapForShortcut_.st M Keymapping-Core.package/KMStorage.class/instance/accessing/keymaps.st A Keymapping-Core.package/KMStorage.class/instance/accessing/remove_.st M Keymapping-Core.package/KMStorage.class/instance/initialization/initialize.st A Keymapping-Core.package/extension/Morph/instance/removeKeyCombination_.st A ScriptLoader30.package/ScriptLoader.class/instance/pharo - scripts/script226.st A ScriptLoader30.package/ScriptLoader.class/instance/pharo - updates/update30570.st M ScriptLoader30.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st Log Message: ----------- 30570 12149 Add support for removing a binding https://pharo.fogbugz.com/f/cases/12149 http://files.pharo.org/image/30/30570.zip

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[pharo-project/pharo-core]
by GitHub Nov. 13, 2013

Nov. 13, 2013

Branch: refs/tags/30570 Home: https://github.com/pharo-project/pharo-core

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[regression reporter]regression occurred
by no-reply＠ci.inria.fr Nov. 13, 2013

Nov. 13, 2013

https://ci.inria.fr/pharo/job/Pharo-2.0-Tests/Run=run%201,VM=vm,label=linux… 1 regressions found. FileSystem.Tests.Disk.FileHandleTest.testTruncate

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Peek
by Diego Lont Nov. 13, 2013

Nov. 13, 2013

Working on Petit Delphi we found a strange implementation for asPetitStream: Stream>asPetitStream ^ self contents asPetitStream Further investigation showed that the basic peek was not fast enough for Petit Parser, as it is used a lot. So it implemented a "improved unchecked peek": PPStream>peek "An improved version of peek, that is slightly faster than the built in version." ^ self atEnd ifFalse: [ collection at: position + 1 ] PPStream>uncheckedPeek "An unchecked version of peek that throws an error if we try to peek over the end of the stream, even faster than #peek." ^ collection at: position + 1 But in my knowledge a basic peek should be fast. The real problem is the peek in the underlying peek: PositionableStream>peek "Answer what would be returned if the message next were sent to the receiver. If the receiver is at the end, answer nil." | nextObject | self atEnd ifTrue: [^nil]. nextObject := self next. position := position - 1. ^nextObject That actually uses "self next". The least thing one should do is to cache the next object. But isn't there a primitive for peek in a file stream? Because al overriding peeks of PositionableStream have basically the same implementation: reading the next and restoring the state to before the peek (that is slow). So we would like to be able to remove PPStream without causing performance issues, as the only added method is the "improved peek". Stephan and Diego

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Where to download Viva?
by Alexandre Bergel Nov. 13, 2013

Nov. 13, 2013

Viva is an animation framework for Athens -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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Where is the FileDirectory-based version of ZnFileSystemUtils?
by Mariano Martinez Peck Nov. 13, 2013

Nov. 13, 2013

Hi Sven, I was seeing your code of ZnFileSystemUtils ... yes... I probably need the same... but I miss the other subclass ;) that one based on FileDirectory. Is this implemented by chance? If true, where can I find it? Thanks! -- Mariano http://marianopeck.wordpress.com

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Questions about Athens
by kilon alios Nov. 13, 2013

Nov. 13, 2013

I created a new subject About the problem to recreate it all it takes is a demo := AthensDemoMorph new openInWorld . It opens the morph with the Athens grey box, I save the image , close pharo, open pharo which reloads the image automagically and BOOM Red Box of Doom :) My other tries also are based on AthensDemoMorph since I cant find documentation to do things differently. So lets get to the questions 1) You say you have morphs using Athens that don't have this problem, care to explain further ? 2) How do I recreate automatically those surfaces ? 3) Do I need to instruct the image on load to reinitialize those objects ? 4) If yes How I do that ? You say its a major problem but yet its not an Athens bug. I know this is has to do with how image saves live objects and that NB calls are not part of the image hence creating the problem. 5) Are there ways to avoid the problem ? 6) Also why there is a Red Box of Doom in the first place ? 7) Why the debugger is not triggered as it should be ? 8) Is that critical a failure of Morphic ? 9) Why Athens even though is based largely on Cairo , and taking into consideration the intention to extend to other graphical interfaces, not following the Cairo design more closely so we can use the Cairo tutorials ? 10) Is the Cairo design so prohibiting / limiting for Athens ? Does Cairo do things so differently than other vector based libraries ? 11) How important is Athens to Pharo community , meaning further bug fixes, improvements , tutorials etc ? I hear there is an intention to gradual move Morphic to it. Is this true ? I really like Athens, I am asking all these questions because I need to make a fast decision whether I will continue to use Pharo or not for my project. Learning OpenGL and using NBOpenGL produced zero results for me. I was not even able to create a single triangle. My gpu driver because of Macos gave me close to zero errors, and Red Box of Doom made it impossible to debug opengl problems. In short close to zero error reporting made it a no go for me. So I fall back at much simpler solutions because I want to create my own GUI API. I see several solutions for this 1) Pharo Athens 2) Amber SVG / WebGL based Vector libs like Pixi / Athens / HTML5 + CSS 3) Python + PyQT + QT I rather stay with Pharo. But I already wasted months of doing nothing and going nowhere with NBOpenGL , I am tried of moving in circles. I am not frustrated cause I knew when I tried that OpenGL was very hard ( I was warned by several opengl people ) so failure was always an option , but I can no longer justify wasting my time getting nowhere. I dont need much from a graphic lib all I need is a) Stability . If it crashes regularly its no good b) Speed, if moving graphic elements around slows down (anything above 20%) dual cores , its no good c) Basic Feature set like , lines, curves , circles and ellipses , display of raster graphics, simple animations , import export of graphic formats, png , jpg and svg is enough. Looks like Athens satisfies b and c , I am not so sure about a. I am trying to understand Athens code from reading it, once again I am a big failure at understanding code. So is there any hope for someone like me , that he is not a very good coder, he is new to Pharo and he has a simple mind to use Athens to make a basic GUI API ? On Thu, Oct 31, 2013 at 6:07 PM, Igor Stasenko <siguctua(a)gmail.com> wrote: > > On 31 October 2013 16:40, kilon alios <kilon.alios(a)gmail.com> wrote: > >> save the image while the morph is displayed, reload the image and in its >> place there is the big red box with the yellow X , reporting an error with >> Athens. I have reproduced the error on Windows too with the Athens >> examples. I assumed my explanation was clear , I hope its clear now. >> >> > no. not clear. which morph? what class, how you using it etc. > I have morphs which using Athens for drawing and i can save and load image > back and i don't have red squares of death. > > >> This means that its impossible to save an image with a morph using Athens >> displaying and have it reload back when the image is reloaded. >> >> The athens-surface, especially cairo surface is valid only within a > single session. > if you boot new image, you must recreate (or stop using) surface you used > in previous session. > Otherwise you will have red box of doom. > > And while i agree that this is pretty major problem (in terms of making > your morph to be session-aware > and in terms of managing external resources) i am far from calling it a > bug of Athens of any kind per se. > > > >> On Thu, Oct 31, 2013 at 5:05 PM, StÃ©phane Ducasse < >> stephane.ducasse(a)inria.fr> wrote: >> >>> >>> On Oct 31, 2013, at 9:55 AM, kilon alios <kilon.alios(a)gmail.com> wrote: >>> >>> yes I am aware of the examples already, I am learning from them. Please >>> note I have found a bug with Athens, which looks to me pretty major. If I >>> save a morph using Athens >>> >>> >>> what do you mean save a morph >>> >>> and reload the image, >>> >>> >>> what do you mean? >>> >>> >>> I see the red box of doom. For example trying your example from >>> stackoverflow. Are you aware of this bug ? >>> >>> >>> On Thu, Oct 31, 2013 at 2:43 AM, Igor Stasenko <siguctua(a)gmail.com>wrote: >>> >>>> ah, yes , there's also examples in >>>> Athens-Examples package. >>>> >>>> >>>> On 31 October 2013 01:30, Igor Stasenko <siguctua(a)gmail.com> wrote: >>>> >>>>> >>>>> On 30 October 2013 23:02, kilon alios <kilon.alios(a)gmail.com> wrote: >>>>> >>>>>> well I just asked if there is any kind of Documentation about Athens >>>>>> . Or should I just read the code and ask questions ? >>>>>> >>>>>> >>>>> the main source of documentation right now is class comments >>>>> and tutorial. >>>>> I've spent quite of a time commenting the central classes of athens, >>>>> hope that's helpful. >>>>> Of course this does not replacement for a well written docu, and that >>>>> needs to be done. >>>>> >>>>> >>>>>> >>>>>> On Wed, Oct 30, 2013 at 11:51 PM, Igor Stasenko <siguctua(a)gmail.com>wrote: >>>>>> >>>>>>> i hope you satisfied with my answer. >>>>>>> you welcome to ask more, if you not :) >>>>>>> >>>>>>> >>>>>>> On 30 October 2013 22:32, dimitris chloupis <thekilon(a)yahoo.co.uk>wrote: >>>>>>> >>>>>>>> >>>>>>>> http://stackoverflow.com/questions/19694197/how-to-create-lines-with-athens >>>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> Best regards, >>>>>>> Igor Stasenko. >>>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>>> -- >>>>> Best regards, >>>>> Igor Stasenko. >>>>> >>>> >>>> >>>> >>>> -- >>>> Best regards, >>>> Igor Stasenko. >>>> >>> >>> >>> >> > > > -- > Best regards, > Igor Stasenko. >

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Re: [Pharo-dev] petit parser repository
by Stephan Eggermont Nov. 13, 2013

Nov. 13, 2013

Just try with .44

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smalltalkhub.com down
by Nicolas Cellier Nov. 13, 2013

Nov. 13, 2013

http://www.downforeveryoneorjustme.com/smalltalkhub.com

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[pharo-project/pharo-core] 5061af: 30569
by GitHub Nov. 13, 2013

Nov. 13, 2013

Branch: refs/heads/3.0 Home: https://github.com/pharo-project/pharo-core Commit: 5061afcc6b94bf49966bc30282409e08a25b4912 https://github.com/pharo-project/pharo-core/commit/5061afcc6b94bf49966bc302… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2013-11-13 (Wed, 13 Nov 2013) Changed paths: A ScriptLoader30.package/ScriptLoader.class/instance/pharo - scripts/script225.st A ScriptLoader30.package/ScriptLoader.class/instance/pharo - updates/update30569.st M ScriptLoader30.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st M Spec-Core.package/ComposableModel.class/instance/private-focus/takeKeyboardFocus.st M Spec-Inspector.package/EyeTreeInspector.class/instance/accessing/tree.st M Spec-PolyWidgets.package/SearchableTree.class/instance/protocol/roots_.st Log Message: ----------- 30569 11782 SearchableTree not working https://pharo.fogbugz.com/f/cases/11782 12132 MNU: TreeNodeModel>>#item https://pharo.fogbugz.com/f/cases/12132 http://files.pharo.org/image/30/30569.zip

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