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AlphaImageMorph performance
by kilon alios Sept. 14, 2014

Sept. 14, 2014

so I sat down to find a good way to import pngs with transparence in pharo and animate them and I ended up to this code morph:= AlphaImageMorph new. morph openInWorld . form1 :=Form fromFileNamed:'/Users/kilon/Pictures/box.png'. form2 :=Form fromFileNamed:'/Users/kilon/Pictures/box2.png'. [(1 to: 100) do: [ :index| morph image: form1 . (Delay forMilliseconds: 2) wait. morph image: form2 . (Delay forMilliseconds: 2) wait. ]]fork. gave me a basic animation then I did the proper thing and I created my own class subclassing AlphaImageMorphing and used stepping every 40 milliseconds (25 fps) to create an animation of 2 frames , frame 1 is image box.png and frame 2 is image box2.png. Both images are 600x600 and contain transparency. Now one morph is fine , seems to work ok and does not raise my cpu much. However when I kept adding instances of the class I found out that after 3 the animation was considerably slow down, pharo also slow down with slow response to my command , when I reached 6 instance I saw failed redrawing of the moprh which was like it was cutting pieces out of the image for a second or so and pharo interaction was quite slow. The cpu one of the four cores were up to 50%. CPU consumption is not bad at all , I compared with playing a youtube FULL HD video which was the same resolution and it was consuming 30% of the cpu. However I wonder if this the best way to do this. Its clear that there is no way with my current solution I can fully animate a big pharo window that is more than 1200x1200 without serious flickering and ideally I should not animate more than 1000x1000 for smooth animation. So is this all ? Are there any improvements I may apply ? Would Athens be faster in this case ? I did not try because Athens is using Morphic anyway so it should be same if not worse.

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Which Character Encodings do you want/need in Pharo ?
by Sven Van Caekenberghe Sept. 14, 2014

Sept. 14, 2014

Hi, ZnCharacterEncoder and its subclasses in the package Zinc-Character-Encoding-Core (a standard part of Pharo) have the following features: - proper Unicode Character/String to/from byte(s) encoding/decoding - calculation of encoding size per Character/String - proper handling of holes in tables with exceptions (strict/lenient) - properly backing up one character on a binary stream - simple, efficient, documented - convenience API - optimisations for some encodings Together, they support the following encodings: - utf-8 - utf-16 (big/little endian, bom detection) - null - iso-8859-1 (latin-1) - iso-8859-2 (latin-2) - mac-roman - cp1250 - cp1252 - cp1253 - koi8r - iso-8859-7 - iso-8859-15 The question is, what other encodings do you want/need ? There is already a request to add CP1251. New byte encoders are easy to add, based on the official Unicode mappings that can be found here: http://unicode.org/Public/MAPPINGS (these are automagically parsed). Please help us make Pharo more international friendly. Sven

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Pharo breakpoints
by Johan Brichau Sept. 14, 2014

Sept. 14, 2014

Hi guys, As described in this issue on the Seaside tracker [1], it appears that setting a breakpoint on a method simply sends the #break message. As #break is not an uncommon method name, the choice for this makes is a de-facto reserved method in Pharo. Would it not be better to rename #break to #_break ? This will avoid unintended clashes. Johan [1] https://code.google.com/p/seaside/issues/detail?id=829

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Roassal vs Roassal 2
by kilon alios Sept. 14, 2014

Sept. 14, 2014

I see in the roassal.pdf that it refers to roassal but in smalltalkhub there is also Roassal 2. Which of the two I should be using and whats their diffirence ? Will the existing roassal.pdf documentation work with Roassal 2 ?

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Thanks :)
by stepharo Sept. 13, 2014

Sept. 13, 2014

Every time we improve the system with a little change, the system gets better. And in Pharo we do it daily. Thank you all for all your changes and enhancements. **You** make Pharo cool. http://pharoweekly.wordpress.com/2014/09/12/there-is-no-such-thing-as-an-un…

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Re: [Pharo-dev] fosdem 2015
by Stephan Eggermont Sept. 13, 2014

Sept. 13, 2014

Santiage wrote: >Hi people!, Will we have room in next FOSDEM? I will put out a proposal for a devroom, yes. That is no guarantee that we will get one, the amount of space is limited. Stephan

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Starting with Roassal 2
by kilon alios Sept. 12, 2014

Sept. 12, 2014

Ok here comes the first question how I change the background color of RTView ? also when I do this v := RTView new. shape := RTEllipse new size: 20; color: Color red. shape := shape + RTLabel. es := shape elementOn:'hello'. v add: es. line := RTDirectedLine new pointsFrom: 20@20 To: 30@30. es2 := line element.v add: es2. es @ RTDraggable. v @ RTDraggableView . v open. I am getting an error MNU Array >> element why ?

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[pharo-project/pharo-core]
by GitHub Sept. 12, 2014

Sept. 12, 2014

Branch: refs/tags/40224 Home: https://github.com/pharo-project/pharo-core

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[pharo-project/pharo-core] c58635: 40224
by GitHub Sept. 12, 2014

Sept. 12, 2014

Branch: refs/heads/4.0 Home: https://github.com/pharo-project/pharo-core Commit: c58635333b230d32651bc1db0ec6db10b4984073 https://github.com/pharo-project/pharo-core/commit/c58635333b230d32651bc1db… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2014-09-12 (Fri, 12 Sep 2014) Changed paths: R DebuggerFilters.package/FilterTest.class/README.md R DebuggerFilters.package/FilterTest.class/definition.st R DebuggerFilters.package/FilterTest.class/instance/running/setUp.st R DebuggerFilters.package/FilterTest.class/instance/tests/testBlockFilter.st R DebuggerFilters.package/FilterTest.class/instance/tests/testBooleanFilter.st R DebuggerFilters.package/FilterTest.class/instance/tests/testKernelClassesFilter.st R DebuggerFilters.package/FilterTest.class/instance/tests/testSelectorFilter.st A DebuggerTests.package/FilterTest.class/README.md A DebuggerTests.package/FilterTest.class/definition.st A DebuggerTests.package/FilterTest.class/instance/running/setUp.st A DebuggerTests.package/FilterTest.class/instance/tests/testBlockFilter.st A DebuggerTests.package/FilterTest.class/instance/tests/testBooleanFilter.st A DebuggerTests.package/FilterTest.class/instance/tests/testKernelClassesFilter.st A DebuggerTests.package/FilterTest.class/instance/tests/testSelectorFilter.st M Ring-Core-Kernel.package/RGBehaviorDefinition.class/instance/accessing class hierarchy/allSuperclassesDo_.st M Ring-Core-Kernel.package/RGBehaviorDefinition.class/instance/accessing/superclass_.st M Ring-Core-Kernel.package/RGCommentDefinition.class/instance/type of comments/fromActiveToPassive.st M Ring-Core-Kernel.package/RGElementDefinition.class/class/parsing stamp/basicParseAuthorAliasFrom_.st M Ring-Core-Kernel.package/RGElementDefinition.class/class/parsing stamp/parseTimestampFrom_default_.st M Ring-Core-Kernel.package/RGMethodDefinition.class/instance/conversion/asStringOrText.st M Ring-Core-Kernel.package/RGMethodDefinition.class/instance/type of methods/fromActiveToPassive.st R Ring-Core-Kernel.package/RGObject.class/instance/testing types/isClass.st M Ring-Core-Kernel.package/extension/Class/instance/asRingDefinitionWithMethods_withSuperclasses_withSubclasses_withPackageKeys_in_.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - scripts/script224.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - updates/update40224.st M ScriptLoader40.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st M Spec-Layout.package/SpecLayout.class/instance/converting/asArray.st M System-Announcements.package/MethodModified.class/instance/accessing/newMethod_.st Log Message: ----------- 40224 14000 FilterTest needs to be moved to a Debugger test package https://pharo.fogbugz.com/f/cases/14000 14004 SpecLayout>>asArray(result is shadowed) https://pharo.fogbugz.com/f/cases/14004 14001 MethodModified>>newMethod: (newMethod is Undeclared) https://pharo.fogbugz.com/f/cases/14001 14010 Small code critics clean of Ring https://pharo.fogbugz.com/f/cases/14010 http://files.pharo.org/image/40/40224.zip

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[pharo-project/pharo-core]
by GitHub Sept. 12, 2014

Sept. 12, 2014

Branch: refs/tags/40223 Home: https://github.com/pharo-project/pharo-core

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