July 2016 - Pharo-users - lists.pharo.org

problem starting Grafoscopio
by Ben Coman July 3, 2016

July 3, 2016

Hi Offray, After loading Grafiscopio from the Catalog in a fresh Pharo-50760 image, selecting Launch>New notebook... ==> MNU GrafoscopioGUI class>>open Finder shows #open is only understood by GrafoscopioBrowser but GrafoscopioBrowser open ==> MNU: receiver of "/" is nil in #openDefault at... workingFile := draftsLocation / 'draft.ston'. where draftsLocation is nil, and searching all references show no method sets that variable. In the comments is... GrafoscopioBrowser configureSettings but that ==> MNU. Trying a rough guess to force... draftsLocation := '/home/ben/grafosocpio' asFileRefence lets the GrafoscopioBrowser open. cheers -ben

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[ANN]Windows previewer / switcher for Pharo
by Julien Delplanque July 3, 2016

July 3, 2016

Hello, This mail to announce you that I am working on a windows previewer / switcher for Pharo [1]. It is still in early stage of development but it is usable. To install it: |Metacello new repository: 'github://JulienDelplanque/WindowsPreviewer/repository'; baseline: 'WindowsPreviewer'; load| See the README for details on activation/shortcuts. Please, if you have some ideas or critics let me know! Also, a better name than "Windows Previewer" would be cool but I have no other idea :-)... Regards, Julien Links: [1]: https://github.com/juliendelplanque/WindowsPreviewer

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Making a bitmap area proportional to a value
by Offray Vladimir Luna CÃ¡rdenas July 3, 2016

July 3, 2016

Hi, I can arrange elements in a visualization where the size/area of an RTBox is proportional to a specified value, like here: or I can made all avatars (RTBitmaps) appear into this one: But I would like to combine both, making the avatars area proportional to a given value and present them in a RTFlowLayout. Is this possible and how? Thanks, Offray

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Styling a Pharo UI application
by Tommaso Dal Sasso July 2, 2016

July 2, 2016

Hello everybody, I have a question about the UI toolkits available for Pharo. I already asked something about this on Slack, but since I saw that there was a recent discussion about UI in the mailing list, I think this is a better place to discuss the matter. I am writing an application for Pharo where I am displaying some structured text. The structure is similar to the one of a web page: A main title with a list of paragraphs, where each paragraph has a title and a description. What I would like to do is to format the text to present the contents in a meaningful way: For example, I would like a bigger font for the title, and change the background of the text, to give a better separation between the paragraphs. Basically I would like to manipulate and display my contents as I would do in a web page. To write UI widgets I usually use Spec, but I found that going beyond easy formatting (e.g. bold text and emphasis) is harder than I thought. I saw there were discussion about the styling text and the role of the theme class, using TextStyle but that part is not really documented. So far, the easiest way to solve my problem seems to be to use Morphic to display the contents as I want it, and then include my widget in my spec application. Do you have any suggestions about how to do that? I think that styling the UI widgets is an important part of the application development, but it is really hard to find documentation about this. Thanks, have a nice day! Tommaso

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Provide a mapping for a collection of <Association>s in NeoJSON
by PBKResearch July 1, 2016

July 1, 2016

Hello I have recently used NeoJSON for the first time. All went pretty well, but I would like to make a small tweak to the output, which probably involves defining a mapping. I have read through the information in the NeoJSON pdf, and also looked at the class comments, but I am a bit lost. Could Sven or anyone please give me a hint? What I want is to construct a JSON object as a Pharo dictionary, but then control the order in which the fields are output to the JSON file. Clearly the order is irrelevant for a computer, but it could be helpful to a human reader to put them in an order which reflects the way humans think about the objects. The keys of a dictionary are of course unordered, so this is not possible, but if we step back a bit we see that a dictionary is often constructed from a collection of associations; if we could stop at this stage, and have a mapping which outputs the associations in the order in which they appear in the collection, this would give the control I am looking for. Am I talking nonsense, or is there any way of implementing this using NeoJSON mappings? Best wishes Peter Kenny

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Spec Documentation case 18653
by Marion Noirbent July 1, 2016

July 1, 2016

Hi, I have begin a documentation for Spec-core-widget (and some classes close of it). I have let some todo when I didn't sure to understand or when I didn't found how make it work. I have refactor some minor things too. Details are in the zip, "Spec_changes_details.txt".

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SQLite + JSON support via UDBCSQLite3 in Pharo
by Offray Vladimir Luna CÃ¡rdenas July 1, 2016

July 1, 2016

Hi all, I have finished my dummy data mock ups as you can see below (or in [1][2] ) [1] https://www.list.inf.unibe.ch/pipermail/moose-dev/2016-June/025799.html [2] https://offray.withknown.com/2016/data-selfie-dummy Now I'm ready to start injecting real data into them. Because data comes from a JSON dump, I would like to use the JSON1 extension of SQLite, [3][4], which means compiling it by myself from SQLite amalgamation and putting the binary in a place where UDBCSQLite3 is aware of it. I'm on a Linux 64 bits machine and I have sqlite2 32 bits binary from the distro repositories. When I linked the distro provided binary to the image location, UDBCSQLite3 works fine (but precompiled binary doesn't have JSON1 extension enabled), but when I put there my compiled binary with JSON1 support instead, UDBC complains about "external module not found". How can I made UDBCSQLite3 aware of my compiled binary ? [3] https://www.sqlite.org/json1.html [4] http://www.samadhiweb.com/blog/2016.04.24.sqlite.json.html Thanks, Offray

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