November 2016 - Pharo-users

Progress Bar with unknown state or showing animated gifs
by Peter UhnÃ¡k Nov. 15, 2016

Nov. 15, 2016

Hi, is there a way to have a progress bar with unknown state? e.g. https://i.stack.imgur.com/gz9GK.gif ProgressBarMorph / Job / SystemProgressMorph seem to be based around progress only. Alternatively, is it possible to (easily) display animated gifs? Thanks, Peter

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Example for Spec FastTableModel
by lionelakue Nov. 15, 2016

Nov. 15, 2016

Hello I am looking for an example on how to use FastTableModel. So it could look like a table with column headers, and mouse actions (right-click, etc) if possible... I need the API for adding columns, headers and datasource. Currently I am working with MultiColumnList, FastTableModel but I can't make them look like tables finally. Thanks, Lionel -- View this message in context: http://forum.world.st/Example-for-Spec-FastTableModel-tp4923147.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Pharo and Raspberry Pi
by Dimitris Chloupis Nov. 15, 2016

Nov. 15, 2016

Hey guys Today I manage to setup my old Raspberry Pi 1 Model B . I was wondering if I can run Pharo on it and how to do this. Any ideas ?

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scope shadowing problem.
by CodeDmitry Nov. 14, 2016

Nov. 14, 2016

Is there a way to stop Pharo from preventing me from shadowing blocks? [:superenv | |env| env := Dictionary new. [:superenv | |env| env := Dictionary new. [:superenv | |env| env := Dictionary new. "..." ] value: env. ] value: env. ] value: nil. It says superenv name already defined, even though that is the whole point, I want to demonstrate dynamic links, eg: var env_get = function(env, varname) { var tenv = env; while (true) { if (tenv.hasOwnProperty(varname)) { return tenv[varname]; } else { if (tenv.superenv == null) { throw "no such variable" + tenv; } else { tenv = tenv.superenv; } } } }; (function(superenv) { var env = { 'superenv': superenv, 'one': 1 }; console.log(env_get(env, "one")); (function(superenv) { var env = { 'superenv': superenv, 'two': 2 }; console.log(env_get(env, "one")); console.log(env_get(env, "two")); (function(superenv) { var env = { 'superenv': superenv, 'three': 3 } console.log(env_get(env, "one")); console.log(env_get(env, "two")); console.log(env_get(env, "three")); })(env); })(env); })(null); in JavaScript and (defun env_get (env varname) (let ((tenv)) (setq tenv env) (loop (let ((val)) (setq val (gethash varname tenv)) (if val (return val) (let ((superenv)) (setq superenv (gethash 'superenv tenv)) (if superenv (setq tenv superenv) (return 'undefined) ) ) ) )) )) ((lambda (superenv) (let ((env)) (setq env (make-hash-table)) (setf (gethash 'superenv env) nil) (setf (gethash 'one env) 1) (print (env_get env 'one)) (print (env_get env 'two)) (print (env_get env 'three)) ((lambda (superenv) (let ((env)) (setq env (make-hash-table)) (setf (gethash 'superenv env) superenv) (setf (gethash 'two env) 2) (print (env_get env 'one)) (print (env_get env 'two)) (print (env_get env 'three)) ((lambda (superenv) (let ((env)) (setq env (make-hash-table)) (setf (gethash 'superenv env) superenv) (setf (gethash 'two env) 2) (setf (gethash 'three env) 3) (print (env_get env 'one)) (print (env_get env 'two)) (print (env_get env 'three)) )) env) )) env) )) nil) in Lisp. -- View this message in context: http://forum.world.st/scope-shadowing-problem-tp4923049.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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csv utf8 etc problem
by Robert Kuszinger Nov. 14, 2016

Nov. 14, 2016

Hello, I've trying to play around with Roassal so I load a csv. Code by far is here: |csv mbfs cont| mbfs := FileStream fileNamed: 'C:\Users\kusr\Documents\vis\test1utf8_cut2.csv'. mbfs lineEndConvention: #crlf; converter: UTF8TextConverter new. cont := mbfs contents. In the contents message the following happens: Array(Object)>>primitiveFailed: Array(Object)>>primitiveFailed Array>>elementsForwardIdentityTo: ByteString(Object)>>becomeForward: ByteString>>at:put: MultiByteFileStream>>next: MultiByteFileStream(FileStream)>>contents UndefinedObject>>DoIt OpalCompiler>>evaluate RubSmalltalkEditor>>evaluate:andDo: RubSmalltalkEditor>>highlightEvaluateAndDo: [ textMorph textArea editor highlightEvaluateAndDo: ann action. textMorph shoutStyler style: textMorph text ] in [ textMorph textArea handleEdit: [ textMorph textArea editor highlightEvaluateAndDo: ann action. textMorph shoutStyler style: textMorph text ] ] in GLMMorphicPharoScriptRenderer(GLMMorphicPharoCodeRenderer)>>actOnHighlightAndEvaluate: in Block: [ textMorph textArea editor highlightEvaluateAndDo...etc... RubEditingArea(RubAbstractTextArea)>>handleEdit: [ textMorph textArea handleEdit: [ textMorph textArea editor highlightEvaluateAndDo: ann action. textMorph shoutStyler style: textMorph text ] ] in GLMMorphicPharoScriptRenderer(GLMMorphicPharoCodeRenderer)>>actOnHighlightAndEvaluate: in Block: [ textMorph textArea... WorldState>>runStepMethodsIn: WorldMorph>>runStepMethods WorldState>>doOneCycleNowFor: WorldState>>doOneCycleFor: WorldState>>doOneSubCycleFor: WorldMorph>>doOneSubCycle MenuMorph>>invokeModalAt:in:allowKeyboard: MenuMorph>>invokeModal: MenuMorph>>invokeModal [ :menu | menu setInvokingView: self editor. menu invokeModal. self changed. ^ true ] in RubEditingArea(RubAbstractTextArea)>>yellowButtonActivity: in Block: [ :menu | ... MenuMorph(Object)>>ifNotNilDo: RubEditingArea(RubAbstractTextArea)>>yellowButtonActivity: RubEditingArea(RubAbstractTextArea)>>mouseDown: RubEditingArea(Morph)>>handleMouseDown: MouseButtonEvent>>sentTo: RubEditingArea(Morph)>>handleEvent: HERE: (ByteString at:put:) ... aCharacter isOctetCharacter ifFalse:[ "Convert to WideString" self becomeForward: (WideString from: self). ^self at: index put: aCharacter. ... Image is moose_suite_6_0 on windows. What should I do? What is frightening that I linked file and SOMETIMES it raises the error above and sometimes not... ??? (zip file with sample csv...) https://drive.google.com/file/d/0B0JASZM9_9QqX19JZElwMVVXWjA/view?usp=shari… thanks Robert

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Pharo catalog
by Jeff Gray Nov. 14, 2016

Nov. 14, 2016

Trying the catalog from Pharo I get an exception. IN the browser I get: /Service Temporarily Unavailable The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later./ Is this a maintenance downtime? -- View this message in context: http://forum.world.st/Pharo-catalog-tp4922782.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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[Teaser] Using Pharo to script Unreal
by Dimitris Chloupis Nov. 13, 2016

Nov. 13, 2016

Annnddddd.... I DID IT !!! I accomplished connecting Pharo with Unreal so I can script it with Pharo. It works from inside the editor and for the game as standalone. True live coding :) I am amazed how fast it is, but then I guess it should be expected with shared memory. You can watch a short demo here https://www.youtube.com/watch?v=6fsUKW8-bBE&feature=youtu.be When I first created the loop, nothing happened. So naturally I expected that my CPPBridge was not working, my loop is basically going from 1 to 150 (z axis), 10 times. After inserting a delay of just 10 milliseconds I could see movement. So apparently without the delay Pharo , Unreal and CPPBridge are so fast that do 10 times movement of 1 to 150 in under one frame !!!!! So now I will have to slow down thing to make them work as I want !!! LOL!!!! I expected to be fast but nowhere that fast. Not that I am complaining. But this is just the first step, now I will slowly and steadily start to wrap Unreal Engine 4.13 API for Pharo. Its a dream to use Pharo professionally :)

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Little challenges for a Saturday evening :): Pangram
by stepharo Nov. 13, 2016

Nov. 13, 2016

Hi If you have some comments :) Stef and Thibaut testIsEnglishPangram self assert: 'the quick brown fox jumps over the lazy dog' isEnglishPangram. self assert: 'the five boxing wizards jump quickly' isEnglishPangram. self deny: 'the quick brown fox jumps over the dog' isEnglishPangram. testIsPangramIn self assert: ('The quick brown fox jumps over the lazy dog' isPangramIn: 'abcdefghijklmnopqrstuvwxyz'). self assert: ('ma papa mama' isPangramIn: 'apm'). [[[ 'portez ce vieux whisky au juge blond qui fume' isEnglishPangram >>> true 'portons dix bons whiskys Ã l''avocat goujat qui fume au zoo.' isEnglishPangram >>> true ]]] isEnglishPangram "Returns true is the receiver is a pangram i.e., that it uses all the characters of a given alphabet." "'The quick brown fox jumps over the lazy dog' isEnglishPangram >>> true" "'The quick brown fox jumps over the dog' isEnglishPangram >>> false" ^ self isPangramIn: 'abcdefghijklmnopqrstuvwxyz'. isPangramIn: alphabet "Returns true is the receiver is a pangram i.e., that it uses all the characters of a given alphabet." "'The quick brown fox jumps over the lazy dog' isPangramIn: 'abcdefghijklmnopqrstuvwxyz' >>> true" "'tata' isPangramIn: 'at' >>> true" alphabet do: [ :aChar | (self includes: aChar) ifFalse: [ ^ false ] ]. ^ true

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Dues anybody try Artifact with non latin characters?
by Denis Kudriashov Nov. 13, 2016

Nov. 13, 2016

Hi. I need to generate PDF with russian letters but when I try it resulting pdf is empty. I use example: oneLineTest: aStream PDFDocument new add: (PDFPage new add: (PDFTextElement new text: 'Hello ÐÑÐ¸Ð²ÐµÑ'; from: 10mm@10mm)); exportTo: aStream. I attach produced pdf. Best regards, Denis

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Graph library in Pharo
by stepharo Nov. 13, 2016

Nov. 13, 2016

Hi I'm looking for a graph library based on a matrix. I remember that I saw one but long time ago. Else if you know a pointer that explains how to implement it, I would like to ask this to potential topics. Stef

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