February 2010 - Pharo-dev - lists.pharo.org

[Pharo-project] Alternative implementation for Cursor>>show:
by Fernando olivero Feb. 11, 2010

Feb. 11, 2010

Hi, i think this send to Sensor could be avoided by replacing the Cursor>>show: method with Cursor>>show self class currentCursor: self. Instead of a: Cursor>>show "Make the hardware's mouse cursor look like the receiver" Sensor currentCursor: self InputSensor>>currentCursor: newCursor "The current cursor is maintained in class Cursor." Cursor currentCursor: newCursor.

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[Pharo-project] about and:and:and:and: and or:or:
by StÃ©phane Ducasse Feb. 11, 2010

Feb. 11, 2010

hi all Jannik and jb started to replace all the and:and: and:and:and: and:and:and:and: and the same for or: by they equivalent ie 1 =2 or: [ 1=3 ] or: [1=1] => 1 =2 or: [ 1=3 or: [1=1]] the new compiler optimize both while the old one not. So now I would like to see what do you think. Personnally I do not like and:and:and: and more Now for and:and: I'm hesitating. Stef

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[Pharo-project] Help mapping large database objects to Smalltalk objects
by Mariano Martinez Peck Feb. 11, 2010

Feb. 11, 2010

Hi folks: I started to code a bit the large support for SqueakDBX to large objects and I want to ask you for help. In a first step, I will start with the basic large objects: CLOB, NCLOB, XML, BLOB. Now, I need to map each of them, to an Smalltalk object. I though about this: CLOB -> String NCLOB -> String XML -> String and the the user do whatever they want with the string representing the XML. BLOB -> ByteArray what do you think? are there suitable objects in a core image ? (I don't want to depend in another package) Now, do you know which is the faster why to create a ByteArray from a String ? and vice-versa ? just asString ? Another question....to get a field value of a row, I call an OpenDBX using FFI like this: apiQueryFieldValue: handle index: index "const char* odbx_field_value( odbx_result_t* result, unsigned long pos )" <cdecl: char* 'odbx_field_value' (ulong ulong) module: 'opendbx'> ^self externalCallFailed As you can see that function of OpenDBX answer me in a char* the value of the field. The problem is...suppose that field is a large object (a CLOB for example). A Clob can be 1gb or even more....of course, that will be bad for my image (freeze ? crash ? I don't know...). I would like to validate the size of that before bring it into the image, so that not to crash or whatever. I want to put like a limit. The problem is that I don't know how to do that from Pharo side....is that possible ? or the only way is to change OpenDBX side ? Thanks a lot in advance, Mariano

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[Pharo-project] [update 1.1] #11202
by StÃ©phane Ducasse Feb. 11, 2010

Feb. 11, 2010

- Issue 1947: Deprecate BlockContext>>fixTemps and BlockClosure>>fixTemps - Issue 1940: More ImageSegment cleaning - remove #fixCapitalizationOfSymbols - remove TTCFontSet code from #comeFullyUpOnReload: This even fixes a cycle dependency between ImageSegment and Multilingual - the following implementors were moved to category *System-Object Storage: *startUpFrom: *saveImageSegments: *areThereImageSegments *rootStubInImageSegment: *scanFromNoCompile: aStream forSegment: anImageSegment Sred

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[Pharo-project] pharo presented at Beijung
by StÃ©phane Ducasse Feb. 11, 2010

Feb. 11, 2010

http://www.beijinglug.org/en/index.php?option=com_content&task=view&id=477&… :) Stef

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[Pharo-project] broken polymorph example in 1.1?
by Hilaire Fernandes Feb. 11, 2010

Feb. 11, 2010

Is it me or examples of the Polymorph usage are broken? For example exampleOtherControls break Hilaire

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[Pharo-project] [update 1.1] #11201
by StÃ©phane Ducasse Feb. 11, 2010

Feb. 11, 2010

11201 ----- - new diff tools enh - Fix a lot of little things stef

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[Pharo-project] [ANN] ConfigurationOfPastell
by Torsten Bergmann Feb. 11, 2010

Feb. 11, 2010

There is now a ConfigurationOfPastell to make XML parsing a little bit easier See http://wiki.squeak.org/squeak/Pastell -- Jetzt kostenlos herunterladen: Internet Explorer 8 und Mozilla Firefox 3.5 - sicherer, schneller und einfacher! http://portal.gmx.net/de/go/chbrowser

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[Pharo-project] File Out html with Syntax Highlighting
by Nathan Tuttle Feb. 11, 2010

Feb. 11, 2010

I find it very useful when learning a language to see the code accurately syntax highlighted on a web page when a snippet is shown. I want to design a fileout method that will allow developers to file out code with html to put into a web page. I know I need to use RBFormatter; any ideas on where to go from here? Where do I get a codestream for example? thanks

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Feb. 11, 2010

Hi people (crosspost pharo and research) While googling for live objects, ie. an API to query live objects coming from the outside world (trade stuffs, information, or whatever information coming from a sensor etc...), I think I just found what I was lokking for. At least something exists. I think this is different from Croquet or Spoon (I think live objets don't need to be in another image, they are just independant entities). On this page [1], you'll find video demonstrating live objects (2nd part of the first one is really cool, especially when they drop the coordinate of a plane in the window...or when they inspect live objets). 2nd video id about integration in office tools. On this same page, there are several publications at then end. [2] and [3] are wikipedia references. Were you aware of that ? Could we build a platform in Smalltalk (I don't really need it, but I find this would be really cool). I don't need such a platform, this was just a midnight googling session... but hey it's coool :) Quote from wikipedia (as you can see Smalltalk inspired them ;) : "Originally, the term was used to refer to the types of dynamic, interactive Web content that is not hosted on servers in data centers, but rather stored on the end-user's client computers, and internally powered by instances of reliable multicast protocols. The word live expressed the fact that the displayed information is dynamic, interactive, and represents current, fresh, live content that reflects recent updates made by the users (as opposed to static, read-only, and archival content that has been pre-assembled). The word distributed expressed the fact that the information is not hosted, stored at a server in a data center, but rather, it is replicated among the end-user computers, and updated in a peer-to-peer fashion through a stream of multicast messages that may be produced directly by the end-users consuming the content; a more comprehensive discussion of the live object concept in the context of Web development can be found in Krzysztof Ostrowski's Ph.D. dissertation[3]. The more general definition presented above has been first proposed in 2008, in a paper published at the ECOOP conference[8]. The extension of the term has been motivated by the need to model live objects as compositions of other objects; in this sense, the concept has been inspired by ***Smalltalk***, which pioneered the uniform perspective that everything is an object, and Jini, which pioneered the idea that services are objects. When applied to live distributed objects, the perspective dictates that their constituent parts, which includes instances of distributed multi-party protocols used internally to replicate state, should also be modeled as live distributed objects. The need for uniformity implies that the definition of a live distributed object must unify concepts such as live Web content, message streams, and instances of distributed multi-party protocols." -- CÃ©drick [1] http://liveobjects.cs.cornell.edu/ [2] http://en.wikipedia.org/wiki/Live_distributed_object [3] http://en.wikipedia.org/wiki/Distributed_data_flow

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