- Pharo-users - lists.pharo.org

NativeBoost nested structures
by Matthieu Lacaton June 16, 2015

June 16, 2015

Hello everyone, I have a nested struct, let's say "struct1" which contains "struct2" which contains an int field named "field". When I try to update the field from struct 1 directly I can't. What I mean is if I do : "struct1 struct2 field: 4" for instance, the value in field is not updated. Even if I inspect "struct1 struct2" and I manually set the "field variable by doing : "self field: 4" then if I go back to my struct1 and do "self struct2 field" the value has not been updated. So basically the only way I have to update a field in a nested structure is to recreate the second struct entirely : "struct1 struct2: (Struct2 new field: 4)" and now it works. It seems odd because in C you can do "struct1.struct2.field = 4;" and it works fine. You can reproduce this with the NBTestNestedStructure class from NativeBoost itself : | myStruct | myStruct := (NBTestNestedStructure new oneByte: (NBTestStructure1byte new field: 1)). Transcript show: myStruct oneByte field; cr. myStruct oneByte field: 4. Transcript show: myStruct oneByte field; cr. myStruct oneByte: (NBTestStructure1byte new field: 4). Transcript show: myStruct oneByte field; cr. For me the Transcript shows 1 1 4 whereas in my opinion it should show 1 4 4. So am I doing something wrong or is this some kind of a bug ? Thanks, Matthieu

2 2

Re: [Pharo-users] World lastKeystroke and openInWorld: aPasteUpMorph
by Markus Schlager June 15, 2015

June 15, 2015

issues opened Markus

2 1

Morph as floating palette?
by Stephan Eggermont June 15, 2015

June 15, 2015

How do I make sure a floating palette morph stays in front of all of my application morphs (except the menu)? Do I have to manage ordering myself? Stephan

3 4

Bug in Open Workspace from File-Browser?
by volkert June 15, 2015

June 15, 2015

The File Browser has a Context Menu "Workspace with Contents". It opens an Edit Window (String Morph), but not a Workspace ... Is the Menu-Title wrong or the implementation? BW, Volkert

5 11

storeOn: and literal limits
by Sean P. DeNigris June 14, 2015

June 14, 2015

Does anything exist to handle uses of #storeOn: that bump into the literal limit? E.g. that splits the offending constructor method into several methods? Thanks. ----- Cheers, Sean -- View this message in context: http://forum.world.st/storeOn-and-literal-limits-tp4832255.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

3 5

Copy array of float to GPU memory
by cheikhou June 14, 2015

June 14, 2015

Hello. I use OpenCL package developed by Ronie Salgado package to program on GPU. When I initialize an array with ByteArray class and load data to GPU memory it works without any problem. But the problem is it works only with ByteArray objects. When I load array of floats to GPU , data are modify and I don't know how and why and results are wrong. Please someone have any idea First: how to load integer values upper than 255 (not possible with ByteArray) Second: use float arrays correctly in GPU memory. Thanks for your help. ----- Cheikhou -- View this message in context: http://forum.world.st/Copy-array-of-float-to-GPU-memory-tp4831970.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

3 5

If comments seperate from the source code and have your own comments
by lb June 13, 2015

June 13, 2015

Hi, I know the comment is very important for reading source code and it is also important to write your own comment after understand somethings. I created a rough annotation application----AnnoApp for Nautilus, please give me good advice to improve it. Attached are the monticello files. Thank you in advance! Liang PS I love Smalltalk and I love Pharo.

4 6

Re: [Pharo-users] Mac Squeak binary virtual machine for Squeak 3.10.2
by Trygve Reenskaug June 13, 2015

June 13, 2015

Hi Chris, I'm sorry to say that your advice didn't work. Worse: The Squeak community has lost a valuable contributor, a prime mover in the patterns and agile communities and the author of several books on OO. My friend wrote: " /I still canât find a version of Squeak for my Mac that will run Trygveâs current BabyIDE. At this point, even if one appears, it is obvious that my dependence on âthe introvert Squeak communityâ will put me in a much more fragile position than with any of my other concept proofs. It will be extremely difficult to build a future on such fragile foundations./" I came to Xerox PARC and Smalltalk in 1978 where I made my contributions to Smalltalk-80. Since then, I have been working almost exclusively with Smalltalk. My company invested in a VW class library of more than 100,000 lines of Smalltalk code and used it in our consulting. A strong selling point was that our tenders were accompanied by a demo version of the program we offered to deliver. Our library and applications were repeatedly threatened by new versions of VW. The code is now dead; there is no VM that will run our old images. The investment is lost. I hoped Squeak would be better. It isn't. Squeak is less stable than VW ever was. My new programming paradigm, DCI, is supported by BabyIDE that runs under Squeak 3.10. I have ported BabyIDE to 4.5, but there are new bugs caused by differences between 3.10 and 4.5. The result is that I have reverted to 3.10 because it's too much hassle to run after the stream of Squeak releases. I thought Pharo would be better, but their mailing list conversations indicate that they do not understand that developers need a stable foundation for their work. The result is that I too leave Smalltalk and concentrate on other environments. A pity, because I still believe Smalltalk has the potential to become a superior environment for non-professional programmers. I am particularly thinking of children and experts such as computational chemists who use computers in their work. It's very painful, but I am now terminating development work in Squeak leave the Squeak and Pharo mailing lists. I will continue my work in some mainstream language. I have just done some work in Java with Netbeans and I am buying a book on JavaScript. It's heavy going, but better that working for the dustbin. Cheers --Trygve On 31.05.2015 16:52, Trygve Reenskaug wrote: Hi, A friend of mine is doing some experiments using a Mac and my program Baby IDE. BabyIDE is works under Squeak 3.10.2. Is there a binary virtual machine for a current Mac that he can use? On 31.05.2015 17:00, Chris Cunnington wrote: > You need a non-Cog vm. I usually download any Etoys vm. [1] > From there, drag it onto the vm or right click, choose âOpen Withâ and > choose Etoys. > > Chris > > [1] http://squeakland.org/download/

7 10

HTML Parser w. custom nodes
by Sean P. DeNigris June 13, 2015

June 13, 2015

Now that we have the cool new Catalog Browser, I see we have at least 4 HTML parsing options - cool! Do any of these allow one to inject custom node classes? Kind of like Zincs converter support, but for individual nodes. When using Soup, I've often thought something like, "gee I wish I could have told it that a tr with a certain background color was really a ProjectDescriptionRow!". It seems clunky to have to parse it once, and then query it again (usually procedurally) to make domain sense of the data, no? ----- Cheers, Sean -- View this message in context: http://forum.world.st/HTML-Parser-w-custom-nodes-tp4832169.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

2 2

ZnClient and percent characters
by Jimmie Houchin June 12, 2015

June 12, 2015

Hello, I am attempting to use ZnClient to request data. The request requires a %2C (comma) delimited string as part of the query. Below is a snippet. znClient addPath: '/v1/instruments'; queryAt: 'fields' putAll: 'displayName%2Cinstrument%2Cpip'; get ; contents) The string 'displayName%2Cinstrument%2Cpip' is being converted to 'displayName%252Cinstrument%252Cpip' which causes the request to fail. The query needs to be fields=displayName%2Cinstrument%2Cpip I have not found how to do this correctly. Any help greatly appreciated. Thanks. Jimmie

7 28