April 2015 - Pharo-users - lists.pharo.org

Roasal: Putting a white background instead of a transparent one in word clouds
by Offray Vladimir Luna CÃ¡rdenas June 23, 2015

June 23, 2015

Hi, I have finally finished the first part of my visualization project of political discourses on Twitter. You can see the details here: http://mutabit.com/offray/static/blog/output/posts/visualizing-politiciansp… (As you can see Pharo was not used to extract the data, just to scrap it, structure it and visualize it). The politicians tag cloud look nice if the background is white, because the png background is transparent, but if you share it on Twitter, the black background makes the tag cloud invisible. I could use image editing programs to change the background from transparent to white, but I would like to know if there is a way to make that change inside Pharo/Roasal. Thanks for all your support in making this ideas possible. Cheers, Offray

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Re: [Pharo-users] Slot questions
by Paul Davidowitz June 2, 2015

June 2, 2015

To Camillo Bruni: I'm not using any slot image (I only looked over the paper). According to the Pharo book, 'pvt' should be implemented in the mainstream image. To Marcus Denker: There are actually several methods in the image with the 'pvt' prefix. Please update the doc (Pharo book) to remove talking about 'pvt'. It would have saved me a little headache :)

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Pillar used directly from Pharo
by Jan ValÃ¡Å¡ek May 17, 2015

May 17, 2015

Hi there, I'd like to ask you, whether is here a way to use pillar internally, directly from Pharo and how to use it properly. I have found some tutorials how to use it from linux/windows command prompt, however, I'd prefer to call it in my program in pharo. Something like this -> ----------------------- header := pillarHeaderObject new. //creating pillar objects directly from my program header text:'Title of my page'. aPillarDocument add: header. //adding them to the whole document object and finally aPillarDocument exportToLatex. //export the document ---------------------- or I can just write the text in the pillar notation to "myTextObject" and then call something like-> ------- pillarParseAndExportToLatex: myTextObject. ------- Is here a way to do this? Thanks for your help :-) John.

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funny idea Symbol vs. Selector
by stephane ducasse May 14, 2015

May 14, 2015

Hi guys I'm thinking aloud... I was wondering if we could not take advantage of a new class: Selector. MethodDict would only contain selectors and not symbols. I remember that I talked about that with hernan. Stef

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Image growing size
by Laura Risani May 13, 2015

May 13, 2015

Hi all, The official image i've downloaded weighted about 40 MB. Now its size is about 200 MB. What is the explanation? Is this normal or have i done something wrong? I haven't been using globals, just downloaded and defined some packages. The only over persistent thing i've done is to keep an instance variable in some classes i wanted to have a unique instance. Best, Laura

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[ANN] Idea icon pack now in Configuration Browser
by Esteban Lorenzano May 6, 2015

May 6, 2015

Hi, I made a configuration to install the new Idea Icon Pack from configurations browser for Pharo 4. You can install it and then choose your new icon set in settings. You can also manual install them by: Gofer it smalltalkhubUser: 'Pharo' project: 'MetaRepoForPharo40'; configurationOf: 'IdeaIcons'; loadStable. ThemeIcons current: #IdeaUIThemeIcons asClass new. âIn Pharo 4, you might need to execute thisâ AbstractNautilusUI resetIconCaches. This icon pack works also for Pharo 3 If you lost it, here a couple of screenshots:

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Woden-Roassal 3d object rotations
by Lusa Nicolas May 5, 2015

May 5, 2015

Hi, I am still working with Woden, in particular with Woden-Roassal and I noticed that rotations on objects are missing (I feel that this is weird that it doesn't have such feature so I am not excluding that I can be wrong but I didn't manage to find anything in the code to rotate objects). Now if I would like to rotate objects it wouldn't be too bad if I were using Woden at his "lowest layer" but I am actually building cubes with Woden-Roassal and there I get lost. I already made some rotations on Woden built arbitrary objects, now I would like to extend it to objects built from Woden-Roassal but I honestly miss on finding the connection between the two. I saw that the base shape is built in: RWCube>>#createBaseShapeNode, I would be able to build a rotated shape from there but that would result in all shapes being rotated in such way since in RWSimpleShape>>#buildRenderableFor:view: when we select the shape: baseShape := aView baseShapeNodeNamed: self baseShapeName ifAbsentPut: [ self createBaseShapeNode ]. we would get back the previous base shape defined. Any suggestions on how to do it? Cheers, Nicolas

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May 4, 2015

Hi, I'm playing with Slots and MethodWrappers to customize instVar reading/writing and method calls. In my experiments, Slots and MethodWrappers hold meta-description objects used at runtime to apply some filters, validations and to compose or delegate methods behavior. I'm really interested in the progress of MetaLink, I saw that it will be possible to use hooks like #instead or #arround. Are these hooks can replace the use of MethodWappers ? Will it be possible to call a MetaObject's method instead of a method's body and with the passed arguments ? The announcement of meta-levels gives me ideas, would not it be interesting to have something like meta-layers? For instance, in order to address a layer with no MetaObjects execution, a layer with MetaObjects for logging or breakpoints, an other layer with custom MetaObjects, etc. I don't see how it would be possible to limit the scope of the active layers configuration, just for a block evaluation for exemple... From RFMetaContext maybe, but how ?... It is just an idea on the fly, Maybe it's already possible to do something like that or it would be just useless in practice. Thanks a lot Marcus for your work on Slot and MetaLink. Best regards, Glenn. ----- Glenn CavarlÃ© -- View this message in context: http://forum.world.st/Questions-about-MetaLink-tp4823035.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Pharo 4 Playground open file menu
by Esteban A. Maringolo May 4, 2015

May 4, 2015

Since the workspace is hidden (*)... what's the recommended procedure to open a smalltalk script file (.st or .ws) without having to open the FileBrowser?(**) Regards, Esteban A. Maringolo (*) I had to run "Workspace open" in a playground. (**) Which in fact doesn't open the file, but a workspace with its contents.

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XMLParser GTInspector extensions
by Ben Coman May 4, 2015

May 4, 2015

I happened to need to use and XML Parser for the first time and found inspecting the structure awkward, so I added some GTInspector extensions to XML-Parser. This is uploaded as XML-Parser-BenComan.304 to http://smalltalkhub.com/#!/~PharoExtras/XMLParser. Could someone who uses XML regularly check if these are reasonable? Now should these methods be packaged separately somehow, since they are likely not of interest to other Smalltalk flavours? btw I gave them a protocol of "GT-Extensions" - but I also considered "moldable-tools" and "tools-extensions". If there a preference? This will likely be a common occurrence across the community, so we should try for a consistent convention across the community for such extensions. btw2, I notice that #gtDisplayOn: implementors are fairly evenly split between [GT-InspectorExtensions-Core] and [GT-SpotterExtensions-Core]. Are they really separated like this in their use? cheers -ben

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