March 2019 - Pharo-users - lists.pharo.org

software update remove in Pharo 7?
by peter yoo March 14, 2019

March 14, 2019

hello pharo guys. before using pharo 6.1 then "software update" in popup menu. but want find then cant look in Pharo 7. remove this utility in pharo 7? -- http://lookandwalk.com http://looknw.com | http://onionmixer.net peter yoo(Jonghwa Yoo). ROK

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[ANN] CouchDB Client for Pharo
by Esteban Maringolo March 14, 2019

March 14, 2019

Hello all, I finished polishing the repository a CouchDB client for Pharo that I forked from an old, and seemingly abandoned, client for VisualWorks. I took that code and refactored heavily to use Pharo and Zinc core classes, and that included renaming the client classes, methods and the strategy used to map objects to/from JSON. It is available at: https://github.com/eMaringolo/pharo-couchdb I'm open to questions or suggestions about this or how to use it. Disclaimer: This is mostly experimental since I'm not using it in production and was done as a means of exploration of CouchDB itself for a project I'm prospecting. There are a lot of features that could be added to the client, and things that could be refactored further (such as the class side request methods), but adding that is simple, and the current state provides almost feature complete coverage. Best regards, Esteban A. Maringolo

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Having to press step into twice, to actually step into with debugger?
by Tim Mackinnon March 13, 2019

March 13, 2019

Has anyone else noticed that you often have to click 2 times, to step into some things in the debugger? I had some code like this: MyClass verify And had a break point on #verify, which the debugger stops on, but then I have to click into, twice to go through the code? Is there something different about this kind of statement, or is this some bug? Tim

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How to get to the bottom of the spinning beach ball when first entering Pharo
by Tim Mackinnon March 13, 2019

March 13, 2019

Hi guys - this has come up before in the past - but Iâm really noticing it now having worked on a project for a few weeks. Every time I go into my image (by go into - I mean unsuspend my laptop and start using as its the current app, OR flipping to it from say reading email) I get a shining beach ball for 5-10 seconds and then the app is responsive and I can work on it. Itâs not all of the time, but Iâve noticed its not just my laptop warming up - as several times a day I see it when flipping back to it. How do I trouble shoot what is going on - does the system reporter tool tell me anything useful? I did notice my image has grown quite large - is it just that? Virtual Machine Statistics -------------------------- uptime 89h58m32s memory 409,608,192 bytes old 400,656,160 bytes (97.80000000000001%) young 3,931,080 bytes (1.0%) used 317,989,144 bytes (77.60000000000001%) free 86,598,096 bytes (21.1%) If it is memory - what would I look at to see why my memory usage is so large on a relatively small app with few dependencies (although I have been doing lots of iceberg commits and running tests, and using the debugger to explore etc) Tim

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Pharo and FPGA
by Norbert Hartl March 13, 2019

March 13, 2019

Iâm trying to collect information about programming in pharo for FPGA. The only things I found are around PharoROS like this [1]. If anyone has more information or is willing to talk about Iâm open ears. The background is that we did little things with the PharoThings toolkit and want to research which other combinations like Arduino, ESP32, FPGAs are there to be a good extensions to a Pi. Any hint is welcomed! Thanks, Norbert [1] http://esug.org/data/ESUG2014/IWST/Papers/iwst2014_From%20Smalltalk%20to%20…

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Hmmm sending at:put: to an undefined object (nil) gives a confusing error message
by Tim Mackinnon March 13, 2019

March 13, 2019

If you forget to initialise a variable which you thought was a Dictionary - you get a confusing error message: "Error: only integers should be used as indicesâ if you try an at:put: This is a consequence of having at:put: defined on Object (which is a bit nasty) Should UndefinedObject at least override this and signal something a bit more obvious? This is a common and easily done thing and we don't support it very well. I just did it in some code, and was scratching my head initially until I read the stack properly and realised it was something much simpler than I thought I had done. Any thoughts on this?

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MSWindows Keymapping
by Craig Johnson March 13, 2019

March 13, 2019

Hi All, I'm primarily a Windows user and I am finding the default key mapping very un-windows and it's preventing me from becoming immersed in the environment. Because I'm constantly having to reach for the mouse to switch windows etc. How easy would it be to change the key mapping to something that I'm more used to? Craig

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UI Frameworks
by Bob Cowdery March 13, 2019

March 13, 2019

Hi, What is the state of the various UI frameworks. I did play with Squeak many moons ago and used Morphic but I wanted something a bit higher up the food chain. I see in Pharo, Spec seems to be the built in framework for widgets but I don't see any graphics capability in there. There does seem to be a bunch of Graphics- classes but couldn't find any info on those. I also found Block and Brick which say they are next generation, Block being for graphics andÂ Brick for widgets. These are not yet in Pharo and again I couldn't find any info although there is a tutorial for Block but not for Brick. Having forgotten most everything I knew I didn't have much success trying to run the Brick examples. To build a reasonably complex UI today that requires both a good widget collection and decent drawing capability what would the best choice be. Thanks bob

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PharoLauncher Baseline Templates
by Ben Coman March 13, 2019

March 13, 2019

Recently I was asked about moving personal projects between images to keep up with latest Pharo 8 development version. My suggestion was of course creating a Baseline to load into each fresh Image. This morning I was contemplating that further and what would be cool is in PharoLauncher being able to right-click a template and have a list of favourite Baselines I could install e.g. BaselineMyProject. Perhaps even be able to define Baseline-Templates that auto-recreate every time the Baseline version moves, so I don't have to wait for all the dependencies to be pulled in. This is just a a seed of an idea and I'm seeking feedback to flesh it out. Could be a useful GSoC project? cheers -ben

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complex json parsing.
by Roelof Wobben March 13, 2019

March 13, 2019

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