May 2015 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Problems getting a png image with ZnEasy

by Sven Van Caekenberghe

> On 16 May 2015, at 03:15, Offray Vladimir Luna CÃ¡rdenas <offray(a)riseup.net> wrote: > > Hi all, > > When I try to do: > > ~~~ > ZnEasy getPng: 'https://pbs.twimg.com/profile_images/3179579549/f83f0e935fb5eff6d967e37e1a3…' > ~~~ > > I get "MessageNotUnderstood: receiver of "bitShift:" is nil". Still I can browse the image in the web browser. > > Any hints? I don't know, for some reason Pharo cannot read that particular PNG. Consider: 'https://pbs.twimg.com/profile_images/3179579549/f83f0e935fb5eff6d967e37e1a3…' asUrl saveContentsToFile: 'foo.png'. $ open current/foo.png ImageReadWriter formFromFileNamed: 'foo.png' $ file current/foo.png current/foo.png: PNG image data, 48 x 48, 8-bit/color RGBA, non-interlaced > Cheers, > > Offray >

May 16, 2015

Re: [Pharo-users] Alt-tab between windows

by stepharo

> Hey folks! I've dabbled with smalltalk here and there over the years, > but recently I've settled in to learn Pharo in earnest. A few of you > might have seen the videos I've been putting up; they seem to be > making the rounds on Twitter. I just want to say I've felt really > welcomed by all the people who have commented with helpful tips, or > offered to help with my exploration :-) Welcome > > I've run into my first big blocker as a newcomer. Like many > programmers I'm a fan of keeping my hands on the keyboard. Now, I'm > more flexible on this than some. I recognize that Pharo is a visual > environment, and it makes sense to explore it with a mouse. And some > interactions just make more sense with a mouse. > > That said, no matter what windowing environment I'm in, I find the > ability to quickly cycle between windows without leaving the keyboard > pretty crucial. One Windows or Ubuntu I would normally do this with > Alt-Tab or Super-Tab. On MacOS it's Cmd-Tab. > > I've been trying to figure out how to do this in Pharo. I've looked > for answers with Google, SO, and on IRC, and I've come up blank. I'm > starting to think it can't be done. > > So, I've come here for your help. Is there a way to cycle between > windows? Or is anyone working on it? Or, perhaps, am I missing an > element of the Pharo programming workflow which renders it unneeded? I'm not really happy with the state of the keybindings but too busy to be able to fix anything for now on this part. Now if people wants to help they are more then welcome. Stef

May 16, 2015

Re: [Pharo-users] Cannot load Pillar

by stepharo

thanks cyril Stef Le 14/5/15 22:00, Cyril Ferlicot a Ã©crit : > Should be fine now > > On 14 May 2015 at 17:54, Cyril Ferlicot <cyril.ferlicot(a)gmail.com> wrote: >> I'll make a new configuration un few hours >> >> >> Le jeudi 14 mai 2015, Alexandre Bergel <alexandre.bergel(a)me.com> a Ã©crit : >>> Hi! >>> >>> When I load Pillar, I have the following: >>> This package depends on the following classes: >>> PRWarning >>> You must resolve these dependencies before you will be able to load these >>> definitions: >>> PRParameterWarning >>> >>> >>> I simply do >>> -=-=-=-=-=-=-=-=-= >>> Gofer new >>> smalltalkhubUser: 'Pier' project: 'Pillar'; >>> configuration; >>> load. >>> (Smalltalk globals at: #ConfigurationOfPillar) load >>> -=-=-=-=-=-=-=-=-= >>> >>> Cheers, >>> Alexandre >>> -- >>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >>> Alexandre Bergel http://www.bergel.eu >>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >>> >>> >>> >>> >> >> -- >> Cheers >> Cyril Ferlicot >> > >

May 16, 2015

Re: [Pharo-users] Alt-tab between windows

by stepharo

Le 16/5/15 01:22, Avdi Grimm a Ã©crit : > > > On Fri, May 15, 2015 at 7:12 PM Carlo <snoobabk(a)gmail.com > <mailto:snoobabk@gmail.com>> wrote: > > > Pressing Alt-Tab brings up a debugger. Debugging the method shows: > > > Thanks! Any idea where the keyboard shortcut is assigned? On the only > systems I have handy to test this, the OS catches Alt-Tab before it > ever gets to Pharo. We started to introduce KeyBinding a way to declare binding instead of hard-coding then. Now we need to finish to convert all the code to use keybinding. Stef

May 16, 2015

Re: [Pharo-users] Alt-tab between windows

by stepharo

Le 16/5/15 01:05, Carlo a Ã©crit : > Hi Avdi > > Enjoyed listening to your ruby rogues podcasts and tapas and now finally Smalltalk;) > > Regarding your pain points on keyboard vs mouse; I've seen this come up before. There has been lot's of improvement, but still a way to go. > I tested cycling between windows on Pharo 3 on mac and Alt-tab is working. Pharo 4 looks like someone put a 'self halt' message on the preview window; so I'm assuming there is a newer way to cycle through windows. Removing the 'self halt' still works though. > Oh the alt-tab will bring up a preview window which you need to select window by pressing any other key; so 'alt-tab' until window comes up, then let it go and press any key to select it. Can you open a bug entry with a nice description if there is something that we should do? Stef > > Cheers > Carlo > > On 16 May 2015, at 12:52 AM, Avdi Grimm <avdi(a)avdi.org> wrote: > > Hey folks! I've dabbled with smalltalk here and there over the years, but recently I've settled in to learn Pharo in earnest. A few of you might have seen the videos I've been putting up; they seem to be making the rounds on Twitter. I just want to say I've felt really welcomed by all the people who have commented with helpful tips, or offered to help with my exploration :-) > > I've run into my first big blocker as a newcomer. Like many programmers I'm a fan of keeping my hands on the keyboard. Now, I'm more flexible on this than some. I recognize that Pharo is a visual environment, and it makes sense to explore it with a mouse. And some interactions just make more sense with a mouse. > > That said, no matter what windowing environment I'm in, I find the ability to quickly cycle between windows without leaving the keyboard pretty crucial. One Windows or Ubuntu I would normally do this with Alt-Tab or Super-Tab. On MacOS it's Cmd-Tab. > > I've been trying to figure out how to do this in Pharo. I've looked for answers with Google, SO, and on IRC, and I've come up blank. I'm starting to think it can't be done. > > So, I've come here for your help. Is there a way to cycle between windows? Or is anyone working on it? Or, perhaps, am I missing an element of the Pharo programming workflow which renders it unneeded? > > Many thanks, > > -- > Avdi > > >

May 16, 2015

Re: [Pharo-users] Enhancing ICal library

by Julien Delplanque

Hi Paul, So the abstraction layer already exists it's good. Ok, so merging my changes to the original repository should not be that hard. I'll check out how to do it and mail you when it's ready to be done. I understand it will be annoying for people that have to choose between the two ical framework. But, as I said before I'm ok to do some improvements but only concerning the pharo side... Well, for this library it shouldn't be that hard to use non-specific stuff I guess. I'll keep you informed of what I'm doing :) Regards, Julien On 16/05/15 17:04, Paul DeBruicker wrote: > Hi Julien, > > The only reason I mind that you forked it is that you now force every person > that isn't yet using iCal in their project, but that wants to adopt it, to > have to decide and evaluate both projects to see which one to adopt for > their own use. So instead of you adopting the burden of integrating your > changes with what exists you've pushed that decision onto all future > potential users of iCal in Pharo. Which seems suboptimal. > > > That being said it is MIT licensed code, and you can do whatever you want > with it. > > > What I did say to you on April 3 after giving you commit access to the iCal > repo (which was not public because I forgot to flip the bit for that, fixed > now tho) was: > "Right now it runs on Squeak, Pharo, and GemStone. > > > Please don't break them with your changes ;) > > > You should be able to ensure that the Pharo 4 specific stuff only loads into > Pharo 4 without too much trouble." > > I see now that that was vague. I was thinking that with the proper design & > Metacello configuration your changes should be loadable no problem without > breaking all the other dialects. > > > By the way, I've had a HTTPClient/Url cross dialect compatability package > I've been maintaining here: > > http://smalltalkhub.com/#!/~pdebruic/HTTPAPIClient > > It could certainly use some attention but may have been helpful to your work > on iCal. > > > Glad your making progress with the GTInspector and docs though. That ical > spec (https://tools.ietf.org/html/rfc5545) is long and boring. > > > > > Julien Delplanque wrote >> Hi everyone, >> >> I took a little time to enhance the ICal library and to make it work >> with Pharo 4! >> >> So I forked the one on smalltalkhub >> (http://smalltalkhub.com/#!/~pdebruic/iCal) and put all the modified >> code on github https://github.com/juliendelplanque/pharo-ical. >> >> Why did I forked? Well, I wanted to make it work on pharo 4 first, so I >> contacted the owner of the smalltalkhub repository. He wanted to keep it >> working on other smalltalk than Pharo. The problem was that the lib used >> Url class that were deprecated in Pharo 3 and even removed on Pharo 4! >> So I managed to repair the package using ZnUrl. Since I don't know if >> the owner of this lib on Smalltalkhub have time to manage the problem to >> keep the lib "multi-smalltalk", I have chosen to fork it so he can keep >> his version compatible. >> >> Good news are that I plan to keep it alive as long as I can, write some >> documentation for it when I have time and even try to enhance it. >> >> I already added a GTInspector extension to have better representation >> of iCalendar when inspecting them in Pharo. >> >> The version on master branch is supported by Pharo 2-3-4 (didn't check >> with Pharo 1). >> >> Regards, >> >> Julien > > > > > -- > View this message in context: http://forum.world.st/Enhancing-ICal-library-tp4825990p4826767.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

May 16, 2015

Re: [Pharo-users] Store a png in a class variable

by Merwan Ouddane

You can encore your image in base64 anImage := 'holidays.png' asFileReference readStream binary. encodedImage := Base64MimeConverter mimeEncode: anImage. Then you can decode it with: ImageReadWriter formFromStream: (Base64MimeConverter mimeDecodeToBytes: encodedImage). Is this what you were searching for ? 2015-05-15 22:47 GMT+02:00 Peter UhnÃ¡k <i.uhnak(a)gmail.com>: > You can also use this utility to simplify generation of the array. > http://smalltalkhub.com/#!/~peteruhnak/IconFactory > > Peter > > On Fri, May 15, 2015 at 9:37 PM, stepharo <stepharo(a)free.fr> wrote: > >> Look at the icons because they are managed like an encoded byte array. >> >> >> Le 15/5/15 21:11, Leonardo Silva a Ã©crit : >> >> Hi, >> >> I load a PNG file using the code below: >> >> pngPath := '/Users/Somefolder/UI-Theme.png' asFileReference. >> forms := pngPath readStreamDo: [ :in | (PNGReadWriter on: in) nextImage >> ]. >> ... >> >> But I don't want to create this dependency with a file path. >> I would like to be able to encode the image into a string and store it >> in a class variable. >> This way, every time I need the image, I decode the class variable back >> to an image and use it. Something like that, I think. >> >> Is it possible to do it? Do you have an example? >> >> Thank you!! >> >> Leonardo >> >> >> >

May 16, 2015

Re: [Pharo-users] Enhancing ICal library

by Paul DeBruicker

Hi Julien, The only reason I mind that you forked it is that you now force every person that isn't yet using iCal in their project, but that wants to adopt it, to have to decide and evaluate both projects to see which one to adopt for their own use. So instead of you adopting the burden of integrating your changes with what exists you've pushed that decision onto all future potential users of iCal in Pharo. Which seems suboptimal. That being said it is MIT licensed code, and you can do whatever you want with it. What I did say to you on April 3 after giving you commit access to the iCal repo (which was not public because I forgot to flip the bit for that, fixed now tho) was: "Right now it runs on Squeak, Pharo, and GemStone. Please don't break them with your changes ;) You should be able to ensure that the Pharo 4 specific stuff only loads into Pharo 4 without too much trouble." I see now that that was vague. I was thinking that with the proper design & Metacello configuration your changes should be loadable no problem without breaking all the other dialects. By the way, I've had a HTTPClient/Url cross dialect compatability package I've been maintaining here: http://smalltalkhub.com/#!/~pdebruic/HTTPAPIClient It could certainly use some attention but may have been helpful to your work on iCal. Glad your making progress with the GTInspector and docs though. That ical spec (https://tools.ietf.org/html/rfc5545) is long and boring. Julien Delplanque wrote > Hi everyone, > > I took a little time to enhance the ICal library and to make it work > with Pharo 4! > > So I forked the one on smalltalkhub > (http://smalltalkhub.com/#!/~pdebruic/iCal) and put all the modified > code on github https://github.com/juliendelplanque/pharo-ical. > > Why did I forked? Well, I wanted to make it work on pharo 4 first, so I > contacted the owner of the smalltalkhub repository. He wanted to keep it > working on other smalltalk than Pharo. The problem was that the lib used > Url class that were deprecated in Pharo 3 and even removed on Pharo 4! > So I managed to repair the package using ZnUrl. Since I don't know if > the owner of this lib on Smalltalkhub have time to manage the problem to > keep the lib "multi-smalltalk", I have chosen to fork it so he can keep > his version compatible. > > Good news are that I plan to keep it alive as long as I can, write some > documentation for it when I have time and even try to enhance it. > > I already added a GTInspector extension to have better representation > of iCalendar when inspecting them in Pharo. > > The version on master branch is supported by Pharo 2-3-4 (didn't check > with Pharo 1). > > Regards, > > Julien -- View this message in context: http://forum.world.st/Enhancing-ICal-library-tp4825990p4826767.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

May 16, 2015

Re: [Pharo-users] Generate latex from Pharo

by Cyril Ferlicot

Pillar-ExporterLaTeX but they inherit from Pillar-ExporterCore I think On 16 May 2015 at 15:30, Julien Delplanque <julien(a)tamere.eu> wrote: > From which package does these classes come from? > > > On 16/05/15 15:26, Cyril Ferlicot wrote: >> >> Hi, >> I don't know if there is a framework but if you don't find you can >> still take a look at the class PRLaTeXCanvas and PRLaTeXWriter from >> Pharo. Maybe that'll help you to make something. >> >> On 16 May 2015 at 14:42, Julien Delplanque <julien(a)tamere.eu> wrote: >>> >>> Hi everyone, >>> >>> Is there any framework to generate latex code from Pharo? I would like to >>> give a latex representation to some objects so I can export the latex >>> code >>> to a file I would include to my latex main file (for example). >>> >>> For example for a matrix I would like to do something like: >>> >>> fileStream nextPutAll: myMatrix asLatex. >>> >>> to have something like: >>> >>> \begin{pmatrix} >>> 1 & 2 \\ >>> 3 & 4 >>> \end{pmatrix} >>> >>> >>> in the file. >>> >>> I used to do it with pylatex in Python and I wonder if something >>> equivalent >>> already exists in Pharo? >>> >>> Regards, >>> >>> Julien >> >> >> > > -- Cheers Cyril Ferlicot

May 16, 2015

Re: [Pharo-users] Generate latex from Pharo

by Julien Delplanque

From which package does these classes come from? On 16/05/15 15:26, Cyril Ferlicot wrote: > Hi, > I don't know if there is a framework but if you don't find you can > still take a look at the class PRLaTeXCanvas and PRLaTeXWriter from > Pharo. Maybe that'll help you to make something. > > On 16 May 2015 at 14:42, Julien Delplanque <julien(a)tamere.eu> wrote: >> Hi everyone, >> >> Is there any framework to generate latex code from Pharo? I would like to >> give a latex representation to some objects so I can export the latex code >> to a file I would include to my latex main file (for example). >> >> For example for a matrix I would like to do something like: >> >> fileStream nextPutAll: myMatrix asLatex. >> >> to have something like: >> >> \begin{pmatrix} >> 1 & 2 \\ >> 3 & 4 >> \end{pmatrix} >> >> >> in the file. >> >> I used to do it with pylatex in Python and I wonder if something equivalent >> already exists in Pharo? >> >> Regards, >> >> Julien > >

May 16, 2015