November 2013 - Pharo-users

How images can be loaded
by Ronie Salgado Nov. 23, 2013

Nov. 23, 2013

Hello, I would like to know how I could load .png image into pharo, and being able to access to their pixel data for manipulation or display it. Greetings, Ronie Salgado

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How to combine Pharo Desktop and Seaside?
by steliosgan Nov. 22, 2013

Nov. 22, 2013

Hello, I am a newbie at smalltalk and I do not feel so comfortable with the following question : I have created an application with Pharo 2.0 and I would like to know if I could present dynamically some results to an html page, using seaside. (Actually, I have a class that creates an OrderedCollection and I want to create an html table to fill it with the data from the collection).Is it feasible? Thank you -- View this message in context: http://forum.world.st/How-to-combine-Pharo-Desktop-and-Seaside-tp4724166.ht… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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How to combine Pharo Desktop and Seaside?
by Torsten Bergmann Nov. 22, 2013

Nov. 22, 2013

You can initialize your instance variable in an initialize method WAComponent subclass: #PrintHtml instanceVariableNames: 'tasks' classVariableNames: '' poolDictionaries: '' category: 'KillerApp-Web-UI' Then a method to initialize on the instance side PrintHtml>>initialize: initialize "initialize the receiver" super initialize. tasks := #('read' 'before' 'you' 'try') If you send #new to a class this #initialize method is automatically called. If you do not want it use #basicNew. So if you enter PrintHtml new in a workspace and select "Inspect it" to open an inspector on the new object this method gets called and therfore you will see that the instance variable should have the collection as contents. Side note: Do not forget the "super initialize" in this method - otherwise superclass initialization for seaside components is not done. Then use a normal rendering method to display the ivar in the browser renderContentOn: html html orderedList list: tasks If I understand you correctly you want to know how you acces the Seaside generated code for a WAComponent subclass also in a workspace. This is easy: |component| component := PrintHtml new. "your seaside component" WARenderCanvas builder render: [ :html | html render: component ] which should return the generated HTML: '<ol><li>read</li><li>before</li><li>you</li><li>try</li></ol>' now. That is one way. The preferred way for Seasiders is to directly look at the generated HTML code in the webbrowser. Just go to your app: http://localhost:8080/killerapp Down at the bottom you will find the seaside development toolbar (only visible when developing) and then click on "Halo". Now Seaside renders a rectangle around each component and you can click on "Source" to Switch to the source of a component. Also try the other buttons there. For sure you should read one of the introduction stuff on Seaside, I would recommend the online Seaside book: http://book.seaside.st/book Bye T.

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Re: [Pharo-users] Writing a GUI - Where to start?
by Stephan Eggermont Nov. 22, 2013

Nov. 22, 2013

Johan wrote: >I recommend you to go with Spec. It is the newest and designed to be the most capable. It is also the way forward, it will be the 'standard' GUI builders >in the future. We know that the documentation right now is far from optimal. Ben and I will work on that in January. Iâd recommend to try to build your application with Glamour first. Only if that doesnât provide a good fit, take a look at spec. Spec is much more powerful, but too low level for most applications. Stephan

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Re: [Pharo-users] State of Flamel?
by Stephan Eggermont Nov. 22, 2013

Nov. 22, 2013

The dependency on AST-Core is removed. I guess it makes sense to have a ci build for this. Can I get access to pharo-contributions to create a build? Stephan

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Any problems known here?
by Friedrich Dominicus Nov. 22, 2013

Nov. 22, 2013

I wonder if anyone has problems running a Pharo on a 64-bit System (Debian) with multiarch. Because strange enough it can suddenly not find vm-display-X11 any more Regards Friedrich -- Q-Software Solutions GmbH; Sitz: Bruchsal; Registergericht: Mannheim Registriernummer: HRB232138; Geschaeftsfuehrer: Friedrich Dominicus

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Scaled PNG image
by Hilaire Fernandes Nov. 22, 2013

Nov. 22, 2013

Hello, In Pharo 2.0 (true in 1.4 as well), it looks PNG bitmap are wrongly rotated or scaled when they contain alpha transparency. In the example bellow with the joined bitmap, the alpha gray color are rendered darker when the imagemorph is scaled or rotated. Sqeak does not suffer this problem | dir morph transform form| dir := FileSystem disk workingDirectory parent. morph := (ImageReadWriter formFromFileNamed: (dir / 'bubble.png') fullName) asMorph. transform := TransformationMorph new asFlexOf: morph. transform smoothingOn ; angle: Float pi / 3; scale: 1. transform openInWorld Thanks Hilaire -- Dr. Geo http://drgeo.eu

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[launcher] Re: [Pharo-dev] PharoLauncher
by btc＠openinworld.com Nov. 21, 2013

Nov. 21, 2013

Well spotted. It is explained by PharoLauncher>>setImageRepository: aTemplateRepository templateRepository: anImageRepository also being wrong and reversed. If you might like to contribute to PharoLauncher and want to get into the swing of things, pharo.fogbugz.com has a 'Launcher' project'where you can log Cases to which you can attach mcz files. btw, you might find the various #settingsOn: methods interesting. btw2, for a while I had been collaborating with Damien in private, but we recently decided to move this to [pharo-users] and adding a [launcher] tag. I've cross-posted there. cheers -ben Mark Bestley wrote: > On 21/11/2013 15:00, Sean P. DeNigris wrote: >> Just starting to play with it... looks cool. >> >> One thing is that I'd like to be able to choose the default image >> location. >> It feels wrong to install them under ~/Library/Preferences on the Mac... >> > > Agreed > > > However I am confused by the code > > createLauncher > ^ self basicNew > setImageRepository: PhLTemplateGroupRepository > forSelectedGroups > templateRepository: PhLDirectoryBasedImageRepository > inPharoPreferencesDirectory; > initialize; > yourself > > Aren't the parameters of setImage and template the wrong way round? ie > it seems to pass the template dir to the image and vice versa >

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Re: [Pharo-users] Help with SQLite3 package
by Joachim Tuchel Nov. 21, 2013

Nov. 21, 2013

Michel, Maybe you should consider using a link instead of a copy of the file. I would also suggest to only add a link within to the sqlite installation directory rather than the pharo directory. Because then pharo will find sqlite3.so as well and you have way fewer dependencies. Joachim Michel <michel.revesche(a)wanadoo.fr> schrieb: >Hi Joachim, > >I have a sqlite library in /usr/lib named 'libsqlite3.so.0.8.6'. This >directory is of course in the path. > >I made a copy of this library in my pharo2.0/bin directory and changed >its name to 'libsqlite3.so' and it fixed the problem ! > >So I got it thanks to your help and a little luck. Depending on the >linux distro this library name would differ. Somebody knows where it is >defined in the image ? > >Regards, >Michel. > >> Hi Michel, >> >> I am neither a Pharo nor a sqlite expert, but I would guess the sqlite >> library is not in your image directory or you are starting pharo >> without setting the PATH to a location that contains the sqlite library. >> >> HTH, >> >> Joachim >> >> Am 20.11.13 18:13, schrieb Michel: >>> Hi pharoers, >>> >>> I am a newbie with Pharo. >>> >>> I installed the SQLite3 package in the Pharo2 image with the >>> MetacelloConfigurationBrowser and tried a test with this script : >>> db := SQLiteConnection fileNamed: '/home/michel/base_CD/BaseCD.db'. >>> resu := db executeQuery: 'SELECT * FROM T_album'. >>> resu inspect. >>> >>> And I got this error : External module not found. >>> >>> I am on Fedora linux and I think that I should give somewhere (in >>> SQLiteReference class ?) the address of the libsqlite3.so file. Am I >>> right ? >>> >>> Kind Regards, >>> Michel. >>> >>> >> >> > > >

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Help with SQLite3 package
by Michel Nov. 21, 2013

Nov. 21, 2013

Hi pharoers, I am a newbie with Pharo. I installed the SQLite3 package in the Pharo2 image with the MetacelloConfigurationBrowser and tried a test with this script : db := SQLiteConnection fileNamed: '/home/michel/base_CD/BaseCD.db'. resu := db executeQuery: 'SELECT * FROM T_album'. resu inspect. And I got this error : External module not found. I am on Fedora linux and I think that I should give somewhere (in SQLiteReference class ?) the address of the libsqlite3.so file. Am I right ? Kind Regards, Michel.

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