November 2014 - Pharo-users

[Oharo-users] Copy AST

by Mark Rizun

Hi everyone, I want to get a deep copy of ast. But deepCopy doesn't work:) What I mean: | ast1 ast2 | ast1 := RBParser parseRewriteExpression: 'self'. ast2 := ast1 copy."or without copy" ast1 stop: 99. ast2 stop When evaluate this you get 99. I want it to be 4. So I want to have separate object ast2 with separate data, not depending on changes made in ast1. As I said deepCopy doesn't work. Any ideas? Thanks, Mark

Nov. 5, 2014

Re: [Pharo-users] FFI structs

by Annick Fron

This is good news ! Annick Le 30 oct. 2014 Ã 23:37, stepharo <stepharo(a)free.fr> a Ã©crit : > Ronie is working on unifying all the api and proposing one syntax mechanism for > - nativeBoost back-end > - FFI > and may be Alien > > The FFI situation is not good and we know we should improve it. > > On 29/10/14 20:18, Thomas Bany wrote: >> Oops, sorry, I was misslead by Steph reply. >> >> Some of the comments might still hold. For the time: â05:45â code to work, you would need FFI to handle all the hassle of memory management and actually allocate the memory for 5 characters and copying it. I never used FFI but I doubt it does this. >> >> Looking at FFI library, you both have ExternalAddress (for the struct with char*) and ExternalType (for the struct with char[5]) that you can use. For the later solution, it still looks like you should define a specific 5 bytes ArrayOf5Char type. >> >> 2014-10-29 18:34 GMT+01:00 Annick Fron <list(a)afceurope.com>: >> I canât use NativeBoost on the Raspberry, I would be glad if I could !!! >> >> >> Le 29 oct. 2014 Ã 12:18, stepharo <stepharo(a)free.fr> a Ã©crit : >> >> > did you read the NativeBoost tutorial on the PharoForTheEntreprise book? >> > If you do please report potential mistakes so that we can improve. >> > >> > >> > On 29/10/14 05:59, Annick Fron wrote: >> >> I I have a C struct with a char* >> >> >> >> struct result { >> >> char* time } >> >> >> >> I define an ExternalStructure in FFI , with one field of type char* (note that the syntax char [5] is not accepted ! ). >> >> >> >> defineFields generates the accessors time and time: >> >> >> >> If I use >> >> time: â05:45â >> >> >> >> I get an error. >> >> How do I set a string value in an ExternalStructure ? >> >> >> >> Annick >> >> >> >> >> >> >> >> >> >> >> > >> > >> >> >> >

Nov. 5, 2014

Re: [Pharo-users] [ANN]: NewExternalWebBrowser

by Ben Coman

Sean P. DeNigris wrote: > Tudor Girba-2 wrote >> Nice :)... Thanks, > > No problem! BTW let's not depend on NewExternalWebBrowser surviving as the > project's name ;) Don't be a newb... ? ;) > > > > ----- > Cheers, > Sean > -- > View this message in context: http://forum.world.st/ANN-NewExternalWebBrowser-tp4788403p4788461.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

Nov. 5, 2014

Re: [Pharo-users] Start up actions

by Sven Van Caekenberghe

The absolute simplest thing is to just create the process and save the image with it, it will keep on running. > On 05 Nov 2014, at 12:05, PBKResearch <peter(a)pbkresearch.co.uk> wrote: > > Hello > > I have a puzzle as to how to implement a start-up action. I would like to have a monitoring process running in the background while I am working on my project, and it would be easier if this process started up automatically when the image is loaded. I have hunted through my current image, and I have found three possibilities: > a. Include a file named startup.st in the same folder as the image, and put a script to start the process in this file. > b. Add a startup: method to the class controlling the background process, and do Smalltalk addToStartUpList: MyClass. > c. Do Smalltalk addDeferredStartUpAction: [block which starts the process]. > The first looks easiest, but it seems untidy to rely on having a separate file sored with the image. All these methods should work; is there any reason to prefer any one of them, or any other better method? > > Thanks in advance for any advice. > > Peter Kenny

Nov. 5, 2014

Start up actions

by PBKResearch

Hello I have a puzzle as to how to implement a start-up action. I would like to have a monitoring process running in the background while I am working on my project, and it would be easier if this process started up automatically when the image is loaded. I have hunted through my current image, and I have found three possibilities: a. Include a file named startup.st in the same folder as the image, and put a script to start the process in this file. b. Add a startup: method to the class controlling the background process, and do Smalltalk addToStartUpList: MyClass. c. Do Smalltalk addDeferredStartUpAction: [block which starts the process]. The first looks easiest, but it seems untidy to rely on having a separate file sored with the image. All these methods should work; is there any reason to prefer any one of them, or any other better method? Thanks in advance for any advice. Peter Kenny

Nov. 5, 2014

Script as first class citizen

by Hilaire

Hello, Within DrGeo I would like to extend the capability of script. As for now, a script is just method user written method integrated in an existing DrGeoUserScript class. It is a very light implementation, and it makes it easy to export the script in the sketch (a XML file). However it is very limited as there are no way to provide type checking on the script argument, customized view for the script in the canvas, external support as comments, name scrip., etc. I will be curious to read about any opinion how to improve it. Thanks Hilaire -- Dr. Geo - http://drgeo.eu iStoa - http://istoa.drgeo.eu

Nov. 5, 2014

Re: [Pharo-users] Render PDF / Web Document in Pharo

by S Krish

embedding a viewer like Java / COM component could be attempted with Native Boost.. that is a framework creation effort. viz in Visualworks: | acrobatInterface arguments | acrobatInterface := COMDispatchDriver createObject: 'AcroExch.AVDoc'. arguments := Array new: 10 withAll: 0. arguments at: 1 put: 'fileName.pdf'; at: 2 put: self windowHandle; at: 3 put: 1. acrobatInterface invokeMethod: 'OpenInWindowEx' withArguments: arguments. acrobatInterface inspect used to work...if in Pharo we can get that capability.. it will be great for Windows apps.. for lot more than just PDF views It can cover MS Office / IE .. and tons more of capability.. On Wed, Nov 5, 2014 at 12:14 PM, Olivier Auverlot < olivier.auverlot(a)gmail.com> wrote: > No but with Pharo, I think that's not difficult to launch a PDF viewer at > the end of PDF generation process. > > Le 4 nov. 2014 Ã 21:59, FranÃ§ois Stephany a Ã©crit : > > Does artefact support *displaying* PDF in Pharo? > > On Tue, Nov 4, 2014 at 11:53 AM, Olivier Auverlot < > olivier.auverlot(a)gmail.com> wrote: > >> Hi Sean, >> >> For rendering PDF documents, you could use Artefact ( >> https://sites.google.com/site/artefactpdf/ ) >> >> Best regards >> Olivier ;-) >> >> Le 4 nov. 2014 Ã 20:13, Sean P. DeNigris a Ã©crit : >> >> Is it possible to display either in a Morphic world? As a start, even a >> non-interactive preview would be valuable... >> >> Thanks. >> >> >> >> ----- >> Cheers, >> Sean >> -- >> View this message in context: >> http://forum.world.st/Render-PDF-Web-Document-in-Pharo-tp4788409.html >> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >> >> >> > >

Nov. 5, 2014

Re: [Pharo-users] Render PDF / Web Document in Pharo

by Olivier Auverlot

No but with Pharo, I think that's not difficult to launch a PDF viewer at the end of PDF generation process. Le 4 nov. 2014 Ã 21:59, FranÃ§ois Stephany a Ã©crit : > Does artefact support *displaying* PDF in Pharo? > > On Tue, Nov 4, 2014 at 11:53 AM, Olivier Auverlot <olivier.auverlot(a)gmail.com> wrote: > Hi Sean, > > For rendering PDF documents, you could use Artefact ( https://sites.google.com/site/artefactpdf/ ) > > Best regards > Olivier ;-) > > Le 4 nov. 2014 Ã 20:13, Sean P. DeNigris a Ã©crit : > >> Is it possible to display either in a Morphic world? As a start, even a >> non-interactive preview would be valuable... >> >> Thanks. >> >> >> >> ----- >> Cheers, >> Sean >> -- >> View this message in context: http://forum.world.st/Render-PDF-Web-Document-in-Pharo-tp4788409.html >> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >> > >

Nov. 5, 2014

Re: [Pharo-users] [ANN]: NewExternalWebBrowser

by Sean P. DeNigris

Tudor Girba-2 wrote > Nice :)... Thanks, No problem! BTW let's not depend on NewExternalWebBrowser surviving as the project's name ;) ----- Cheers, Sean -- View this message in context: http://forum.world.st/ANN-NewExternalWebBrowser-tp4788403p4788461.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Nov. 5, 2014

Re: [Pharo-users] Bug? in Filein

by Nicolai Hess

Fixed and integrated (pharo 40350) I'll open another issue for backporting to pharo3 2014-11-02 22:24 GMT+01:00 Nicolai Hess <nicolaihess(a)web.de>: > Actually it is a bug in FileOUT! > > 14377 <https://pharo.fogbugz.com/default.asp?14377> > FileOut creates invalid comment entries for classes with class side methods > > > 2014-11-02 17:42 GMT+01:00 Nicolai Hess <nicolaihess(a)web.de>: > >> 2014-10-31 0:11 GMT+01:00 JosÃ© ComesaÃ±a <jose.comesana(a)gmail.com>: >> >>> I see. But WATestError it is in the same package it is "Fileing", on >>> line 3284 and is referenced many times before. I am sorry I have not enough >>> knowledge about the internals to do more debugging. >>> >>> Seems to be a lack of coordination between FileOut and FileIn. Maybe >>> nothing to do... >>> >>> Now a simpler and clearer test: >>> >>> 1. Back to the original situation. >>> 2. FileOut *only* WAContextTest. It has a comment: "I am the base class >>> for all tests that need a WARequestContext present.", in .st file in line 8. >>> 3. Remove it. >>> 4. FileIn again. No errors on Transcript BUT no comment appears for >>> WAContextTest. >>> >>> Maybe, if I get a couple of free hours I could dare to debug a little.... >>> >>> Best >>> >>> >>> 2014-10-30 23:30 GMT+01:00 stepharo <stepharo(a)free.fr>: >>> >>>> It says that the class WATestError is not available. >>>> >>>> >>>> >>>> Yes, I did. It is in the .st file >>>> >>>> >>>> >>>>> c. You get a bunch of errors in Transcript while filing in >>>>>> >>>>> No magic ball so we cannot guess. >>>>> >>>>> >>>> Example of Transcript messages (in case it helps): >>>> WADocumentHandlerResponseTest>>createAndVerifyBinaryDocumentNamed:hasAttachment: >>>> (WATestingFiles is Undeclared) >>>> >>>> WAExceptionHandlerTest>>testCommaReturnsExceptionSet (WATestError is >>>> Undeclared) >>>> >>>> WAExceptionHandlerTest>>testCommaReturnsExceptionSet (WATestError is >>>> Undeclared) >>>> >>>> WAExceptionHandlerTest>>testCommaReturnsExceptionSet (WATestError is >>>> Undeclared) >>>> >>>> WAExceptionHandlerTest>>testCommaReturnsExceptionSet (WATestError is >>>> Undeclared) >>>> >>>> WAExceptionHandlerTest>>testInternalError (WATestError is Undeclared) >>>> >>>> >>>> It happens in more cases. I just took this one because this is a >>>> package anyone can install in order to reproduce the problem. >>>> >>>> Thanks >>>> >>>> >>>> >>> >> >> Yes, it is a bug. Verified on Pharo4 with class ZnMessageBenchmark. The >> class has a comment, after fileout/remove class/filein this class is >> without a comment. >> I'll open a bug report. >> >> >

Nov. 4, 2014