January 2016 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Lawsuit Tracker app

by SaÅ¡a JaniÅ¡ka

On Ned, 2016-01-03 at 12:49 +0100, Esteban Lorenzano wrote: > you have it: > > http://catalog.pharo.org That's nice, but there are, imho, too many pkgs with "No description provided", so maybe that should be made as mandatory? Sincerely, Gour --Â In the material world, one who is unaffected by whatever good or evil he may obtain, neither praising it nor despising it, is firmly fixed in perfect knowledge.

Jan. 4, 2016

Re: [Pharo-users] Using Playgrounds as a notepad

by Dimitris Chloupis

have you tried the Workspace ? Workspace open. or you can built your own starting with TextMorph tm := TextMorph new. tm openInWindow . On Mon, Jan 4, 2016 at 3:22 AM Andy Burnett <andy.burnett(a)knowinnovation.com> wrote: > I often find that I need to do simple manipulations to passages of text, > e.g. remove all carriage returns, or extract email addresses etc. > > Pasting the text into a Playground doesn't work because there is always an > apostrophe, or line break or... etc. and the playground complains. > > Is there a way to tell a Playground to just ignore the text, and give me a > handle to its contents, so that I can then do something like > > playgroundId contents splitOn:Character space. > > Alternatively, is there another object that would be more appropriate? > Playground would be really useful just because it is in the menu, and > always available. > > Cheers > Andy >

Jan. 4, 2016

Re: [Pharo-users] Slow object printOn: with EURO symbol

by Henrik Johansen

> On 02 Jan 2016, at 10:58 , Hilaire <hilaire(a)drgeo.eu> wrote: > > Hello, > > With Pharo3, in an object of mine, I want its text representation to > come with the EURO symbol: > > CGMoney>>printOn: aStream > aStream << (amount asScaledDecimal: 2) greaseString > << ' ' << 'â¬' > > > It appears to be very slow when I browse such collection of objects > (says 1500) from an inspector > > Replacing 'â¬' by 'EUR' gives back normal rendering time. > > Indeed the 'â¬' is encoded as WideString, so not sure what is happening. > All content converted to WideString or what? In the fallback code for WriteStream >> #nextPut:, at:put: is called, so yes, streaming a wide char causes the streams collection to be converted from Byte to WideString. Conversion is done using become, which currently triggers a full heap scan for references, and is thus very slow. One could add a fast-path along the lines of #pastEndPut: (which has already broken any assumption that a reference to the collection will reflect all writes for the lifetime of stream, for the same performance problems one would face using #become:); if collection is a ByteString and anObject is a wide characters, replace collection with a WideString, and *then* call at:put: But, it is not a very nice thing to add to a generic streaming class, nor is it a very attractive at this point in time considering that making become: a fast operation is one of the problems solved by Spur. Cheers, Henry

Jan. 4, 2016

Re: [Pharo-users] Versionner and package dependencies

by Ferlicot D. Cyril

Le 04/01/2016 10:44, Christophe Demarey a Ã©crit : > Hi Cyril, > > It is not something we want in Versionner. > An external project *must* have a configuration to refer to it. If not, > you will take random packages without knowing if they have themselves > dependencies. > What you should do is to create a project for that and then ask > Versionner to only load the package you need (right-click on the project > dependency). > > Christophe Hi, So we have to create ourself a configuration for each project that doesn't have a configuration/group that match our needs if we want to use versionner if I understand right. Ok, thank you. And is there a way to execute pre/post scripts (#postLoadDoIt: in ConfigurationOfXXX) with versionner ? If not is it something you want to add to versionner or this will not be add ? -- Cyril Ferlicot http://www.synectique.eu 165 Avenue Bretagne Lille 59000 France

Jan. 4, 2016

Re: [Pharo-users] Versionner and package dependencies

by Christophe Demarey

Hi Cyril, Le 30 dÃ©c. 2015 Ã 10:17, Ferlicot D. Cyril a Ã©crit : > Hi, > > I wanted to use versionner to manage some existing configurations but in > one of these configuration there is some dependencies on packages that > have no project. > > For example in the baseline there is: > > spec package: 'Glamour-EyeSee-Presentations' > with: [ spec requires: #('EyeSee'). > spec repository: 'http://smalltalkhub.com/mc/Moose/Glamour/main' ]. > > But in versionner I can only add a project as dependency. > > Is there a way to do such a thing or is it a future feature of versionner? It is not something we want in Versionner. An external project must have a configuration to refer to it. If not, you will take random packages without knowing if they have themselves dependencies. What you should do is to create a project for that and then ask Versionner to only load the package you need (right-click on the project dependency). Christophe

Jan. 4, 2016

Re: [Pharo-users] Using Playgrounds as a notepad

by Tudor Girba

Hi, > On Jan 4, 2016, at 3:21 AM, Andy Burnett <andy.burnett(a)knowinnovation.com> wrote: > > I often find that I need to do simple manipulations to passages of text, e.g. remove all carriage returns, or extract email addresses etc. > > Pasting the text into a Playground doesn't work because there is always an apostrophe, or line break or... etc. and the playground complains. > > Is there a way to tell a Playground to just ignore the text, and give me a handle to its contents, so that I can then do something like > > playgroundId contents splitOn:Character space. > > Alternatively, is there another object that would be more appropriate? Playground would be really useful just because it is in the menu, and always available. The Playground does not yet allow you to do that. But, you can use the Clipboard: Clipboard clipboardText splitOn:Character space. Cheers, Doru > Cheers > Andy -- www.tudorgirba.com www.feenk.com "Value is always contextual."

Jan. 4, 2016

Using Playgrounds as a notepad

by Andy Burnett

I often find that I need to do simple manipulations to passages of text, e.g. remove all carriage returns, or extract email addresses etc. Pasting the text into a Playground doesn't work because there is always an apostrophe, or line break or... etc. and the playground complains. Is there a way to tell a Playground to just ignore the text, and give me a handle to its contents, so that I can then do something like playgroundId contents splitOn:Character space. Alternatively, is there another object that would be more appropriate? Playground would be really useful just because it is in the menu, and always available. Cheers Andy

Jan. 4, 2016

Re: [Pharo-users] Spec: Binding widgets how to

by Offray Vladimir Luna CÃ¡rdenas

Thanks again Nicolai! I will start from here :-). Offray On 03/01/16 18:20, Nicolai Hess wrote: > > > 2016-01-03 23:52 GMT+01:00 Offray Vladimir Luna CÃ¡rdenas > <offray(a)riseup.net <mailto:offray@riseup.net>>: > > Hi, > > On 03/01/16 08:45, Nicolai Hess wrote: >> >> >> There is any way to run a minimal GUI with a tree using your >> example? I'm still missing a key concept on how to use spec >> and binding between widgets. >> >> >> what is missing ? this is a minimal gui with a tree component. > > Ohh, what is missing is not in the example, but in my > understanding on how to use/start it. I would expect for something > like "example openWithSpec" to start deconstructing it, but I'm > still lost about it. I will be working on it today and tomorrow to > see if I can come with better questions. > > > Ok, for this example you can just start it with: > > TreeDemo new openWithSpec > > It opens a window with two panes, the upper pane shows a tree with > some nodes (subclasses of class Morph) > The lower pane shows the text(name) of the selected node. You can > change and accept (cmd+s) the text in the > lower pane, which will update the name of the tree node. > > > Cheers, > > Offray > >

Jan. 3, 2016

Re: [Pharo-users] Spec: Binding widgets how to

by Nicolai Hess

2016-01-03 23:52 GMT+01:00 Offray Vladimir Luna CÃ¡rdenas <offray(a)riseup.net> : > Hi, > > On 03/01/16 08:45, Nicolai Hess wrote: > > > > >> >> There is any way to run a minimal GUI with a tree using your example? I'm >> still missing a key concept on how to use spec and binding between widgets. >> > > what is missing ? this is a minimal gui with a tree component. > > > > Ohh, what is missing is not in the example, but in my understanding on how > to use/start it. I would expect for something like "example openWithSpec" > to start deconstructing it, but I'm still lost about it. I will be working > on it today and tomorrow to see if I can come with better questions. > Ok, for this example you can just start it with: TreeDemo new openWithSpec It opens a window with two panes, the upper pane shows a tree with some nodes (subclasses of class Morph) The lower pane shows the text(name) of the selected node. You can change and accept (cmd+s) the text in the lower pane, which will update the name of the tree node. > > Cheers, > > Offray >

Jan. 3, 2016

Re: [Pharo-users] Lawsuit Tracker app

by John Pfersich

Sent from my iPad > On Jan 3, 2016, at 03:49, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > > >> On 03 Jan 2016, at 10:11, John Pfersich <jpfersich(a)gmail.com> wrote: >> >> >> >> Sent from my iPad >> >>>> On Jan 2, 2016, at 23:57, SaÅ¡a JaniÅ¡ka <gour(a)atmarama.com> wrote: >>>> >>>> On Sub, 2016-01-02 at 23:27 +0000, Dimitris Chloupis wrote: >>>> >>>> there is an an SQlite wrapper for pharo >>> >>> I know about it. >>> >>> However it would be nice to have some categorized catalog of the >>> packages available for Pharo? >> >> +1 >> I find that I just browse the Configuration Browser to see what's out there and then google the name to see if I can find any documentation. > > you have it: > > http://catalog.pharo.org > > configuration browser was not good enough so we replaced it in Pharo 5 (packages can be used in older versions, and they are listed in the catalog web page). > but againâ¦ no tool can survive if people does not contribute. > > Esteban > You should add a link to catalog.pharo.org on the documentation page on Pharo.org. I find it is a very useful tool. >> >> And it would be nice to have a wiki like Squeak's. >> >>>> the screenshot you shared as Tudor said can be accomplished via >>>> Roassal and Morphic. >>> >>> Now, I'm really a bit puzzled about Roassal' capabilities. :-) >>> >>>> Personally I find the whole performance question kinda irrelevant >>>> because if you really want to squeeze the most performance code those >>>> parts in C and call them from Pharo via its FFI. Not even Julia will >>>> able to outperform that since itself relies on C code for performance >>>> and its quite restrictive how you use its dynamic types to achieve >>>> high performance. >>> >>> Well, the point is that e.g. I know people who tried to do similar apps >>> in Python and it was too slow, they abandoned it and went to C++. >>> >>> That's the reason why I was primarily exploring statically-compiled >>> languages. Julia *might* be interesting since it is higher-level >>> language with fantastic, close to C performance when one helps compiler >>> by annotating data types. >>> >>> In short, I want to avoid fiddling with low-level languages, otherwise >>> it would be simple to just use C/GTK or C++/Qt. (Java could probably >>> also do the job, but I simply do not like it.) >>> >>> For the most critical part of the application, I anyway plan to use 3rd >>> party C lib which does calculate planetary ephemeris, but for the custom >>> libs using it, I want to use higher-level and type-safer language. >>> >>>> In any case there are always 3 rules, profile, profile and profile. >>>> When it comes to performance assume nothing. In the vast majority of >>>> cases Pharo JIT VM should be more than enough. >>> >>> Let me see... >>> >>>> And if all you want to do is a business app I dont even know why you >>>> worry about performance. Business apps they are very low demand on >>>> performance. >>> >>> When I say 'business' app, it is most in the sense of typical 'desktop >>> outlook', while the app itself is falling more into 'science' app, but >>> it depends how one sees astronomy/astrology. :-) >>> >>>> Pharo libraries dont get irrelevant because the language is so simple >>>> it barely changes and the changes usually dont brake compatibility. >>> >>> Pharo's simplicity of the language is huge 'pro'. ;) >>> >>>> Pharo can do REPL via the playground, the whole deal is that is a lot >>>> more than that. >>> >>> Right, it's just that Julia provides more 'traditional' dev work-flow, >>> while with Pharo one has to unwrap one's head a bit. :-) >>> >>>> GUI wise you can do some pretty awesome stuff with morphic. >>> >>> That I still have to learn... >>> >>> >>> Sincerely, >>> Gour >>> >>> -- >>> A person is said to be elevated in yoga when, having renounced >>> all material desires, he neither acts for sense gratification >>> nor engages in fruitive activities. >

Jan. 3, 2016