August 2011 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] Polymorph improvements

by Gary Chambers

No prob. OmniPage is looking to be the frontrunner at the moment balanced upon accuracy vs. speed. These things do cost though... Tesseract doesn't do too badly but absolutely requires the image cleanup stuff we did for MBagger. The others also tend to do better with our preprocessing. Regards, Gary ----- Original Message ----- From: Lorenzo Schiavina To: Pharo-project(a)lists.gforge.inria.fr Sent: Thursday, August 04, 2011 5:02 PM Subject: Re: [Pharo-project] Polymorph improvements Thank you Gary, no problem about the fact that OCR is not in ST; as I am working to some projects myself, I know that the problem is to integrate the right tool. Do you mind keeping me informed about the results you reach? Grazie Lorenzo ----- Original Message ----- From: Gary Chambers To: Pharo-project(a)lists.gforge.inria.fr Sent: Thursday, August 04, 2011 4:20 PM Subject: Re: [Pharo-project] Polymorph improvements Hi Lorenzo, I can't say too much at present but is basically a commercial application for a client for handling postal packages that slip through the rest of their automated processes. So, using a handheld scanner (like MBagger) it gets a scan of the address label, OCRs it and extracts relevant information that can be passed on to their existing (VB) application, along with, say weight from electronic scales etc. Currently we are trialling various 3rd party OCR engines: Abbyy, OmniPage and Tesseract (open source). Of course, I'm making it vastly configurable so there will many potential uses... Sorry if you were actually think that the OCR itself was done by us in Smalltalk ;-) Regards, Gary ----- Original Message ----- From: Lorenzo Schiavina To: Pharo-project(a)lists.gforge.inria.fr Sent: Thursday, August 04, 2011 8:19 AM Subject: Re: [Pharo-project] Polymorph improvements Hi Gary, I have seen from your screenshots that you are working on OCR projecr; can you give my some information about it? Thanks Lorenzo ----- Original Message ----- From: Gary Chambers To: Pharo-project(a)lists.gforge.inria.fr Sent: Tuesday, August 02, 2011 5:51 PM Subject: Re: [Pharo-project] Polymorph improvements Screenshot of part of project: http://www.flickr.com/photos/12018791@N06/6001799235/in/photostream Regards, Gary ----- Original Message ----- From: Gary Chambers To: Pharo Development Sent: Tuesday, August 02, 2011 4:40 PM Subject: [Pharo-project] Polymorph improvements Hi all. I've added an issue with some tweaks/improvements to a few Polymorph classes. http://code.google.com/p/pharo/issues/detail?id=4590 Groupboxes can now have dynamic content (model/getContentSelector based). Abaility to create icon lists via builder/TEasilyThemed. Expander labels now LabelMorphs rather than TextMorphs (can therefore appear as disabled) IncrementalSliderMorphs now honour minWidth/minHeight in layouts Panel morphs allow event based mouse over handling (call to super was missing). Label groups allow for nil labels (equates to empty string) Regards, Gary

Aug. 4, 2011

Re: [Pharo-project] Polymorph improvements

by Lorenzo Schiavina

Thank you Gary, no problem about the fact that OCR is not in ST; as I am working to some projects myself, I know that the problem is to integrate the right tool. Do you mind keeping me informed about the results you reach? Grazie Lorenzo ----- Original Message ----- From: Gary Chambers To: Pharo-project(a)lists.gforge.inria.fr Sent: Thursday, August 04, 2011 4:20 PM Subject: Re: [Pharo-project] Polymorph improvements Hi Lorenzo, I can't say too much at present but is basically a commercial application for a client for handling postal packages that slip through the rest of their automated processes. So, using a handheld scanner (like MBagger) it gets a scan of the address label, OCRs it and extracts relevant information that can be passed on to their existing (VB) application, along with, say weight from electronic scales etc. Currently we are trialling various 3rd party OCR engines: Abbyy, OmniPage and Tesseract (open source). Of course, I'm making it vastly configurable so there will many potential uses... Sorry if you were actually think that the OCR itself was done by us in Smalltalk ;-) Regards, Gary ----- Original Message ----- From: Lorenzo Schiavina To: Pharo-project(a)lists.gforge.inria.fr Sent: Thursday, August 04, 2011 8:19 AM Subject: Re: [Pharo-project] Polymorph improvements Hi Gary, I have seen from your screenshots that you are working on OCR projecr; can you give my some information about it? Thanks Lorenzo ----- Original Message ----- From: Gary Chambers To: Pharo-project(a)lists.gforge.inria.fr Sent: Tuesday, August 02, 2011 5:51 PM Subject: Re: [Pharo-project] Polymorph improvements Screenshot of part of project: http://www.flickr.com/photos/12018791@N06/6001799235/in/photostream Regards, Gary ----- Original Message ----- From: Gary Chambers To: Pharo Development Sent: Tuesday, August 02, 2011 4:40 PM Subject: [Pharo-project] Polymorph improvements Hi all. I've added an issue with some tweaks/improvements to a few Polymorph classes. http://code.google.com/p/pharo/issues/detail?id=4590 Groupboxes can now have dynamic content (model/getContentSelector based). Abaility to create icon lists via builder/TEasilyThemed. Expander labels now LabelMorphs rather than TextMorphs (can therefore appear as disabled) IncrementalSliderMorphs now honour minWidth/minHeight in layouts Panel morphs allow event based mouse over handling (call to super was missing). Label groups allow for nil labels (equates to empty string) Regards, Gary

Aug. 4, 2011

[Pharo-project] Questions about Ocean

by Igor Stasenko

1. why library does not serve as a factory for objects? I think it should, so one can write: library := MyLibrary new. socket := library createTcpSocket. socket connectTo: (library ipv4Address: 'x.y.z' port: 1000) I think it could simplify a lot of things. 2. what is OCNConversationTcpSocket and what its role? As to me it is unnecessary. I'd rather leave only single socket class in kernel. And for others, i think it would be better to use delegation instead of subclassing. So you will have: MyCustomRoleSocket (socket) -> OCNSocket (socketid, library) -> library with such encapsulation, you could ensure that you won't leak unwanted public/generic behavior outside of your model. While if you subclassing, it always takes everything as granted, and then it is unclear for user, what is safe to use and how. 3. Why OCNSocket keeps track its "state"? I think it would be better to always ask system about its state, because you never know for sure.. 4. error handling is below the waterline and needs to be addressed properly :) See the amount of error codes which connect() could produce. Where are they? Also, there is a lot of missing things for finer socket controls, like select(), poll(), fnctl() setsockopt() etc.. with all flags. So you have a lot to do :) 5. where i can put my code for NativeBoost backend of Ocean? 6. I understand that project is far from being complete, so don't treat my comments as an arrogant asshole. Just my thoughts, how it would be better to implement :) I created couple of classes and couple of tests (i could create socket, connect to remote host), but i stopping now, since of the above issues. Ideally, i would like to introduce you to NativeBoost and to see if you like it and if you can use it without my direct involvement (because it's already too much on my plate anyways ;) -- Best regards, Igor Stasenko AKA sig.

Aug. 4, 2011

Re: [Pharo-project] Polymorph improvements

by Gary Chambers

Bill, no prob. For OmniPage we are using FFI with the SDK dlls, the others essentially command line (via FFI for CreateProcess on Win32 etc) as quickest to do for evaluation purposes. For app comms, at present just a serious abuse of the clipboard for now. We can add Socket modules etc. as required ;-) As a desire, it would be nice if the clipboard plugin could do non-text types (Forms for example)... then we won't have to do platform specifc stuff when the need arises (just pasting plain-text/XML at the moment). One amusement is our clipboard "processor" can look out for certain keyword structures for a bi-directional interface. The app can actually work nicely with Notepad, say! (manually copy command to retrive xml from Notepad then clipboard text replaced with the requested XMl from our app... then paste in). We chose the abused clipboard route as being the simplest form of inter-process communications for demonstration purposes. Regards, Gary ----- Original Message ----- From: Schwab,Wilhelm K To: Pharo-project(a)lists.gforge.inria.fr Sent: Thursday, August 04, 2011 3:54 PM Subject: Re: [Pharo-project] Polymorph improvements Gary, No apologies, please :) It's nice to Pharo being used for things like this. How are you connecting to the OCR engines and VB app? If those questions are too probing, then pretend I didn't ask. Bill ------------------------------------------------------------------------------ From: pharo-project-bounces(a)lists.gforge.inria.fr [pharo-project-bounces(a)lists.gforge.inria.fr] On Behalf Of Gary Chambers [gazzaguru2(a)btinternet.com] Sent: Thursday, August 04, 2011 10:20 AM To: Pharo-project(a)lists.gforge.inria.fr Subject: Re: [Pharo-project] Polymorph improvements Hi Lorenzo, I can't say too much at present but is basically a commercial application for a client for handling postal packages that slip through the rest of their automated processes. So, using a handheld scanner (like MBagger) it gets a scan of the address label, OCRs it and extracts relevant information that can be passed on to their existing (VB) application, along with, say weight from electronic scales etc. Currently we are trialling various 3rd party OCR engines: Abbyy, OmniPage and Tesseract (open source). Of course, I'm making it vastly configurable so there will many potential uses... Sorry if you were actually think that the OCR itself was done by us in Smalltalk ;-) Regards, Gary ----- Original Message ----- From: Lorenzo Schiavina To: Pharo-project(a)lists.gforge.inria.fr Sent: Thursday, August 04, 2011 8:19 AM Subject: Re: [Pharo-project] Polymorph improvements Hi Gary, I have seen from your screenshots that you are working on OCR projecr; can you give my some information about it? Thanks Lorenzo ----- Original Message ----- From: Gary Chambers To: Pharo-project(a)lists.gforge.inria.fr Sent: Tuesday, August 02, 2011 5:51 PM Subject: Re: [Pharo-project] Polymorph improvements Screenshot of part of project: http://www.flickr.com/photos/12018791@N06/6001799235/in/photostream Regards, Gary ----- Original Message ----- From: Gary Chambers To: Pharo Development Sent: Tuesday, August 02, 2011 4:40 PM Subject: [Pharo-project] Polymorph improvements Hi all. I've added an issue with some tweaks/improvements to a few Polymorph classes. http://code.google.com/p/pharo/issues/detail?id=4590 Groupboxes can now have dynamic content (model/getContentSelector based). Abaility to create icon lists via builder/TEasilyThemed. Expander labels now LabelMorphs rather than TextMorphs (can therefore appear as disabled) IncrementalSliderMorphs now honour minWidth/minHeight in layouts Panel morphs allow event based mouse over handling (call to super was missing). Label groups allow for nil labels (equates to empty string) Regards, Gary

Aug. 4, 2011

Re: [Pharo-project] The shiftEnclose: horror show

by Nicolas Cellier

I had a possibility to try in Windows where the [ is obtained via AltGr+5 on a french keyboard, but the combination Alt+AltGr+5 does not work on this machine. So #enclose: a pair [ ] or { } or | | is not possible on such keyboard Note that the old #shiftEnclose: was not of any help, so the change does not make it worse. Nicolas 2011/8/4 Nicolas Cellier <nicolas.cellier.aka.nice(a)gmail.com>: > I'm typing this message on a mac French keyboard. > That means I can obtain the holy brackets [ | ] only through weird > keystroke combinations > | = shit+option+L > [ = shift+option+( where shift+5 is ( > > Enclosing a text in square brackets would require some finger torture > both in Squeak/Pharo > shift+option+command+( > But this does not work because of #shiftEnclose: rules encountered in > #initializeShiftCmdKeyShortcuts > (found both ParagraphEditor class and TextEditor class) > > Â Â Â Â "Note: Command key overrides shift key, so, for example, cmd-shift-9 > produces $9 not $(" > Â Â Â Â '9[,''' do: [ :char | cmdMap at: (char asciiValue + 1) put: > #shiftEnclose: ]. Â Â Â "({< and double-quote" > Â Â Â Â "Note: Must use cmd-9 or ctrl-9 to get '()' since cmd-shift-9 is a > Mac FKey command." > > shiftEnclose: is badly designed because it does hardcode the keyboard > layout (see below). > This is not compatible with modern VMs, at least the mac ones, because > they deliver a unicode codePoint for $[ or $|, not a raw keycode. > It's easy to remove this anachronism and correct the mapping: > > Â Â Â Â "On some keyboards, these characters require a shift" > Â Â Â Â '([<{|"''' do: [:char | cmdMap at: char asciiValue + 1 put: #enclose:]. > > To avoid pushing a mac-centric change in trunk, I need to know if the > Linux/Windows VM would support above modification. > Can anyone check for me ? > > Nicolas > > > > > > Example of hardcoded keyboard layout: > TextEditor>>shiftEnclose: aKeyboardEvent > Â Â Â Â "Insert or remove bracket characters around the current selection. > Â Â Â Â Flushes typeahead." > > Â Â Â Â | char left right startIndex stopIndex oldSelection which text | > Â Â Â Â char := aKeyboardEvent keyCharacter. > Â Â Â Â char = $9 ifTrue: [ char := $( ]. > Â Â Â Â char = $, ifTrue: [ char := $< ]. > Â Â Â Â char = $[ ifTrue: [ char := ${ ]. > Â Â Â Â char = $' ifTrue: [ char := $" ]. > Â Â Â Â char asciiValue = 27 ifTrue: [ char := ${ ]. Â Â "ctrl-[" > snip... >

Aug. 4, 2011

Re: [Pharo-project] Polymorph improvements

by Schwab,Wilhelm K

Gary, No apologies, please :) It's nice to Pharo being used for things like this. How are you connecting to the OCR engines and VB app? If those questions are too probing, then pretend I didn't ask. Bill ________________________________ From: pharo-project-bounces(a)lists.gforge.inria.fr [pharo-project-bounces(a)lists.gforge.inria.fr] On Behalf Of Gary Chambers [gazzaguru2(a)btinternet.com] Sent: Thursday, August 04, 2011 10:20 AM To: Pharo-project(a)lists.gforge.inria.fr Subject: Re: [Pharo-project] Polymorph improvements Hi Lorenzo, I can't say too much at present but is basically a commercial application for a client for handling postal packages that slip through the rest of their automated processes. So, using a handheld scanner (like MBagger) it gets a scan of the address label, OCRs it and extracts relevant information that can be passed on to their existing (VB) application, along with, say weight from electronic scales etc. Currently we are trialling various 3rd party OCR engines: Abbyy, OmniPage and Tesseract (open source). Of course, I'm making it vastly configurable so there will many potential uses... Sorry if you were actually think that the OCR itself was done by us in Smalltalk ;-) Regards, Gary ----- Original Message ----- From: Lorenzo Schiavina<mailto:lorenzo@edor.it> To: Pharo-project(a)lists.gforge.inria.fr<mailto:Pharo-project@lists.gforge.inria.fr> Sent: Thursday, August 04, 2011 8:19 AM Subject: Re: [Pharo-project] Polymorph improvements Hi Gary, I have seen from your screenshots that you are working on OCR projecr; can you give my some information about it? Thanks Lorenzo ----- Original Message ----- From: Gary Chambers<mailto:gazzaguru2@btinternet.com> To: Pharo-project(a)lists.gforge.inria.fr<mailto:Pharo-project@lists.gforge.inria.fr> Sent: Tuesday, August 02, 2011 5:51 PM Subject: Re: [Pharo-project] Polymorph improvements Screenshot of part of project: http://www.flickr.com/photos/12018791@N06/6001799235/in/photostream Regards, Gary ----- Original Message ----- From: Gary Chambers<mailto:gazzaguru2@btinternet.com> To: Pharo Development<mailto:pharo-project@lists.gforge.inria.fr> Sent: Tuesday, August 02, 2011 4:40 PM Subject: [Pharo-project] Polymorph improvements Hi all. I've added an issue with some tweaks/improvements to a few Polymorph classes. http://code.google.com/p/pharo/issues/detail?id=4590 Groupboxes can now have dynamic content (model/getContentSelector based). Abaility to create icon lists via builder/TEasilyThemed. Expander labels now LabelMorphs rather than TextMorphs (can therefore appear as disabled) IncrementalSliderMorphs now honour minWidth/minHeight in layouts Panel morphs allow event based mouse over handling (call to super was missing). Label groups allow for nil labels (equates to empty string) Regards, Gary

Aug. 4, 2011

Re: [Pharo-project] Polymorph improvements

by Gary Chambers

Hi Lorenzo, I can't say too much at present but is basically a commercial application for a client for handling postal packages that slip through the rest of their automated processes. So, using a handheld scanner (like MBagger) it gets a scan of the address label, OCRs it and extracts relevant information that can be passed on to their existing (VB) application, along with, say weight from electronic scales etc. Currently we are trialling various 3rd party OCR engines: Abbyy, OmniPage and Tesseract (open source). Of course, I'm making it vastly configurable so there will many potential uses... Sorry if you were actually think that the OCR itself was done by us in Smalltalk ;-) Regards, Gary ----- Original Message ----- From: Lorenzo Schiavina To: Pharo-project(a)lists.gforge.inria.fr Sent: Thursday, August 04, 2011 8:19 AM Subject: Re: [Pharo-project] Polymorph improvements Hi Gary, I have seen from your screenshots that you are working on OCR projecr; can you give my some information about it? Thanks Lorenzo ----- Original Message ----- From: Gary Chambers To: Pharo-project(a)lists.gforge.inria.fr Sent: Tuesday, August 02, 2011 5:51 PM Subject: Re: [Pharo-project] Polymorph improvements Screenshot of part of project: http://www.flickr.com/photos/12018791@N06/6001799235/in/photostream Regards, Gary ----- Original Message ----- From: Gary Chambers To: Pharo Development Sent: Tuesday, August 02, 2011 4:40 PM Subject: [Pharo-project] Polymorph improvements Hi all. I've added an issue with some tweaks/improvements to a few Polymorph classes. http://code.google.com/p/pharo/issues/detail?id=4590 Groupboxes can now have dynamic content (model/getContentSelector based). Abaility to create icon lists via builder/TEasilyThemed. Expander labels now LabelMorphs rather than TextMorphs (can therefore appear as disabled) IncrementalSliderMorphs now honour minWidth/minHeight in layouts Panel morphs allow event based mouse over handling (call to super was missing). Label groups allow for nil labels (equates to empty string) Regards, Gary

Aug. 4, 2011

Re: [Pharo-project] Polymorph improvements

by Gary Chambers

Stef, can't find any mails relating to minimumExtent and maximumExtent. I'm sure the min used to be honoured though (maybe back in Squeak, clearly not now since not sent!). Regards, Gary ----- Original Message ----- From: "StÃ©phane Ducasse" <stephane.ducasse(a)inria.fr> To: <Pharo-project(a)lists.gforge.inria.fr> Sent: Tuesday, August 02, 2011 9:03 PM Subject: Re: [Pharo-project] Polymorph improvements thanks for sharing that with us. BTW did you see my question (some weeks ago) about minimalExtent or maximalExtent for window it seems that it is totally unused. Stef > Screenshot of part of project: > http://www.flickr.com/photos/12018791@N06/6001799235/in/photostream > > Regards, Gary > ----- Original Message ----- > From: Gary Chambers > To: Pharo Development > Sent: Tuesday, August 02, 2011 4:40 PM > Subject: [Pharo-project] Polymorph improvements > > Hi all. > > I've added an issue with some tweaks/improvements to a few Polymorph > classes. > > http://code.google.com/p/pharo/issues/detail?id=4590 > > Groupboxes can now have dynamic content (model/getContentSelector based). > Abaility to create icon lists via builder/TEasilyThemed. > Expander labels now LabelMorphs rather than TextMorphs (can therefore > appear as disabled) > IncrementalSliderMorphs now honour minWidth/minHeight in layouts > Panel morphs allow event based mouse over handling (call to super was > missing). > Label groups allow for nil labels (equates to empty string) > > Regards, Gary

Aug. 4, 2011

Re: [Pharo-project] [Pharo-users] [PBE-Spanish] Status update 2011-08-03

by NicolÃ¡s Paez

We hope to have it before Smalltalks 2011. The revision is not easy because Spanish language is spoken in many countries and this makes the languages to have variations. At the same time, in the translation process there were people from at least 4 different countries (Argentina, Chile, Spain and Venezuela) and we need to ensure the book to be consistent. The point here is that to ensure consistency we need to read the whole book. Regards, NicoPaez Saludos! Nico. blog: nicopaez.wordpress.com On Thu, Aug 4, 2011 at 4:16 AM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>wrote: > version. :) > > Stef > > On Aug 4, 2011, at 12:24 AM, NicolÃ¡s Paez wrote: > > > Hello everyone, > > > > Finally we were able to fix the some of the errors in PDF generation and > now, all the 14 chapters are published in PDF format :-) > > > > You can download them from PharoByExample page. > > Direct link: > https://gforge.inria.fr/frs/download.php/28829/PBE1-Spanish-FullDraft-2011-… > > > > At the same time, some new volunteers joined the project to collaborate > in the revision. > > > > Saludos! > > Nico. > > blog: nicopaez.wordpress.com > > >

Aug. 4, 2011

Re: [Pharo-project] Pharo 1.4 #14076 update failed.

by Laszlo Zsolt Kiss

Â dear pharoers.now the update is working.thx for your support.best regards.laszlo zsolt ----- Original Message ----- From: "Marcus Denker" To: Cc:"Laszlo Zsolt Kiss" Sent:Thu, 4 Aug 2011 15:08:32 +0200 Subject:Re: [Pharo-project] Pharo 1.4 #14076 update failed. On Aug 4, 2011, at 3:05 PM, Mariano Martinez Peck wrote: > It seems you simply have a timeout. What I don't understand is how that can crash the VM. Do you have a dump file as well ? > > It did not chrash the VM, it's simply a time out while reading from SqueakSource. I can update, so it's not a problem of Squeaksource. It would be interesting to know from *which* image version the update was tried. 140? but even that should not be relevant. The best is to just try again. -- Marcus Denker -- http://marcusdenker.de [1] Links: ------ [1] http://marcusdenker.de

Aug. 4, 2011