March 2013 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] How to open a file with external app

by Max Leske

On 27.03.2013, at 23:26, Camillo Bruni <camillobruni(a)gmail.com> wrote: > The only solution currently is to use OSProcess and > - open under OSX > - gnome-open under linux Or use NativeBoost (e.g. run C code that does what you want). But Camillo's solution is certainly easier to implement. > > > On 2013-03-27, at 23:05, jannik.laval <jannik.laval(a)gmail.com> wrote: > >> Hi pharoers, >> >> Is it possible to select a file and open it with an external application ? >> For example, I need to open a pdf file. >> >> How can I do that ? >> >> Thank you for the help, >> Jannik >> > >

March 28, 2013

Re: [Pharo-project] How to open a file with external app

by jannik.laval

I just see that it is not integrated in Pharo2.0. Where can I find it ? Jannik On Mar 28, 2013, at 6:49 AM, jannik.laval <jannik.laval(a)gmail.com> wrote: > Do you have an example of code ? > > Jannik > > On Mar 27, 2013, at 11:26 PM, Camillo Bruni <camillobruni(a)gmail.com> wrote: > >> The only solution currently is to use OSProcess and >> - open under OSX >> - gnome-open under linux >> >> >> On 2013-03-27, at 23:05, jannik.laval <jannik.laval(a)gmail.com> wrote: >> >>> Hi pharoers, >>> >>> Is it possible to select a file and open it with an external application ? >>> For example, I need to open a pdf file. >>> >>> How can I do that ? >>> >>> Thank you for the help, >>> Jannik >>> >> >> >

March 28, 2013

[Pharo-project] strange problem in CompiledMethod>>=

by Tudor Girba

Hi, One of the Moose test runs a visualization that manipulates CompiledMethods, and it runs into an error when trying to find an entry inside a dictionary that has compiled methods as keys. In the end, I managed to isolate the problem that can be reproduced by: 1. Download the moose image: https://ci.inria.fr/moose/job/moose-latest-dev-4.8/lastSuccessfulBuild/arti… 2. Execute: (MooseIncomingQueryResult>>#selectDependencies:) = (MooseOutgoingInvocationQueryResult>>#selectDependencies:). It seems it is a Pharo problem, or something related to these particular methods. Would anyone be interested in looking into this? Cheers, Doru -- www.tudorgirba.com "Obvious things are difficult to teach."

March 28, 2013

Re: [Pharo-project] How to open a file with external app

by jannik.laval

Do you have an example of code ? Jannik On Mar 27, 2013, at 11:26 PM, Camillo Bruni <camillobruni(a)gmail.com> wrote: > The only solution currently is to use OSProcess and > - open under OSX > - gnome-open under linux > > > On 2013-03-27, at 23:05, jannik.laval <jannik.laval(a)gmail.com> wrote: > >> Hi pharoers, >> >> Is it possible to select a file and open it with an external application ? >> For example, I need to open a pdf file. >> >> How can I do that ? >> >> Thank you for the help, >> Jannik >> > >

March 28, 2013

Re: [Pharo-project] in anybody out there? who uses 2.0?

by Tudor Girba

Magritte2 is a bit old. Magritte3 loads fine (we are using it in Moose). Doru On Mar 28, 2013, at 3:11 AM, "Esteban A. Maringolo" <emaringolo(a)gmail.com> wrote: > Did anybody manage to load Magritte 2 at least? > > When running this: > Gofer it > squeaksource: 'MetacelloRepository'; > package: 'ConfigurationOfMagritte2'; > load. > > (ConfigurationOfMagritte2 project version: '2.0.6') load: #('Magritte-Seaside') > > I get the following error: > This package depends on the following classes: > BlockContext > You must resolve these dependencies before you will be able to load > these definitions: > magritteDynamicObject > > Esteban A. Maringolo > > > 2013/3/27 Sean P. DeNigris <sean(a)clipperadams.com>: >> EstebanLM wrote >>> So... I wonder... is that because we made a really cool release, or just >>> because nobody is using it? >> >> I've ported most of my projects to 2.0, but I've been on holidays for a few >> weeks, so I haven't updated to the released version. I'll know better this >> week, but IIRC most of the bugs I noticed have been fixed. >> >> >> >> ----- >> Cheers, >> Sean >> -- >> View this message in context: http://forum.world.st/in-anybody-out-there-who-uses-2-0-tp4678552p4678640.h… >> Sent from the Pharo Smalltalk mailing list archive at Nabble.com. >> > -- www.tudorgirba.com "What we can governs what we wish."

March 28, 2013

Re: [Pharo-project] in anybody out there? who uses 2.0?

by Yanni Chiu

On 27/03/13 10:24 AM, Esteban Lorenzano wrote: > > Here in Pharo headquarters we are shock that there are just 10 new bugs reported for 2.0 after the release... > So... I wonder... is that because we made a really cool release, or just because nobody is using it? Just before the release I loaded up my project, and did a quick check to find that everything looked fine - except that I would have to migrate to Fuel-1.9. I had noticed that package loading seemed extremely slow, but did not look further into it. I think I saw mention that it's due to some usage of #become:, during the compiling of code. Based on build times (of just loading the rough equivalent code), it seems about 3 times slower to do a build on a Pharo-2.0 vs. Pharo-1.4. The slowness is not just an annoyance, because I actually compile code in my application - it's just compiling getters and setters. I've not got enough working yet to see whether it's going to adversely affect the usability (it could make startup time too slow). Another thing I've noticed is occasional sluggishness in the UI. It's hard to pinpoint, I often feel like my clicks are being lost. The behaviour of the TestRunner was odd. Eventually I discovered running tests via the Nautilus browser, but the UI feedback is extremely confusing for "abstract" test cases. I still don't quite understand the results I see there, so I do a final run of the tests in the TestRunner. Another strange issue I had with test cases was to do with the interaction of the deprecation warnings. In by build script, I run: Deprecation raiseWarning: false. Deprecation showWarning: false. so the build can run headless. It took me a few hours, and a careful single stepping, to find that the deprecation exceptions were being swallowed. I'm sure the TestRunner did not behave this way before. If you ran a test, you would still see the deprecation exceptions. It was really frustrating to see your test fail, but have the stack cleared out before you could debug the exception that caused the test failure. Are these bugs, or just me getting used to the new release?

March 28, 2013

Re: [Pharo-project] in anybody out there? who uses 2.0?

by Esteban A. Maringolo

Did anybody manage to load Magritte 2 at least? When running this: Gofer it squeaksource: 'MetacelloRepository'; package: 'ConfigurationOfMagritte2'; load. (ConfigurationOfMagritte2 project version: '2.0.6') load: #('Magritte-Seaside') I get the following error: This package depends on the following classes: BlockContext You must resolve these dependencies before you will be able to load these definitions: magritteDynamicObject Esteban A. Maringolo 2013/3/27 Sean P. DeNigris <sean(a)clipperadams.com>: > EstebanLM wrote >> So... I wonder... is that because we made a really cool release, or just >> because nobody is using it? > > I've ported most of my projects to 2.0, but I've been on holidays for a few > weeks, so I haven't updated to the released version. I'll know better this > week, but IIRC most of the bugs I noticed have been fixed. > > > > ----- > Cheers, > Sean > -- > View this message in context: http://forum.world.st/in-anybody-out-there-who-uses-2-0-tp4678552p4678640.h… > Sent from the Pharo Smalltalk mailing list archive at Nabble.com. >

March 28, 2013

[Pharo-project] GSoC idea - Smalltalk Modbus Industrial Communications Protocol

by Ben Coman

Janko MivÅ¡ek wrote: > Dear Pharoers, > > Ideas are slowly coming, 14 so far, but this is way below the 30+ in > previous years. So, stretch your brain, come with some more ideas, which > will be interesting for potential students and of course useful for our > community. Students you are again welcome to propose such idea by your > own. One student idea for now! > > Ideas so far: http://gsoc2013.esug.org/ideas > > To propose an idea just respond to this post by fulfilling this idea > template: > > Title: Smalltalk Modbus Industrial Communications Protocol Level: Intermediate Possible mentor: Ben Coman - I can provide the domain knowledge and general programming assistance Possible second mentor: Someone to help advise on good Smalltalk architectural patterns Description: Smalltalk has high potential as a SCADA (Supervisor Control And Data Acquisition) platform for industrial plant automation. A SCADA system provides a real-time animated interface for plant operators to monitor and control industrial processes, by providing graphical mimics of meters, gauges, valves, motors, tanks and field start/stop buttons[1]. A pre-requisite of this is communicating with a PLC (Programmable Logic Controller) to which the electrical wiring of the plant sensor and control devices are connected. The de facto communications protocol for SCADA/PLC communication is Modbus. This project will implement the Modbus protocol in Smalltalk. Technical Details: First published in 1979, Modbus is a application level master-slave/client-server communications protocol used for SCADA/PLC communications. Much of its popularity as a de facto standard is due to its relatively simple implementation compared to other industrial communications protocols. The student will use Modbus specifications [2] the student will implement ModbusASCII, ModbusRTU and ModbusTCP. This will be done first using a simulator[3], then later using a physical I/O module [4] to control some real world devices. [1] Sample animation at http://en.wikipedia.org/wiki/SCADA (circles are motors, triangles are valves, half circles are valve controllers.) [2] http://www.modbus.org/specs.php (about 50 pages - not all required) [2] http://www.plcsimulator.org/Home (or similar) [3] http://www.audon.co.uk/modbusio/mbiodaio.html (or similar) Benefits to the Student: * gain experience in client/server programming * gain experience in a widely used industrial communication protocol. * practice breaking down and implementing a real-world specification - good training for the workplace. * controlling the real world from Smalltalk will be cool * a local industrial plant might be approached to help with a practical test case, maybe leading to ongoing employment. Benefits to the Community: This project expands the industry segments into which the Smalltalk community can consult. It provides a foundation for development of a SCADA system in Smalltalk. The industrial automation industry is a great source of bespoke application development. It is a service industry where the source code is owned by the client, since every industrial plant is different requiring a custom written SCADA application. Many plants run 24x7, so ongoing modifications need to be made online without shutting down the operator's console, for which Smalltalk is ideal (not all current commercial SCADA platforms can do this). cheers -ben

March 28, 2013

Re: [Pharo-project] Non-Smalltalk content in Pharo and Nautilus

by Benjamin

Exactly what I was about to propose :) Write a GSoC proposal ^^ Ben On Mar 27, 2013, at 9:29 PM, Guillermo Polito <guillermopolito(a)gmail.com> wrote: > > > On Wed, Mar 27, 2013 at 9:18 PM, Torsten Bergmann <astares(a)gmx.de> wrote: > When working with Seaside (or other frameworks) one often works with non-Smalltalk resources > stored within the image (CSS styles, images, ...) often stored as strings within > methods: > > > myCss > ^'body { > background-color: #ffffce; > }' > > or > > script > ^'alert("hello from Javascript");' > > > I also often see Base64 encoded images, or when working with XML a method > might return XML content. > > With things like Helvetia [1], the reworked autocompletion/syntax highlighting and new > browsers like Nautilus in mind I wonder if (may be in the not so far future) I can: > > - click on a Smalltalk method to get ST styling and edit functionality > - click on a CSS content method to do CSS styling and completion > - click on a method with a form content to display the picture (and not the Base64 encoded string) > - click on an XML content to browse the XML tree > - click on an HTML providing method to edit HTML and maybe preview > - click on a method with CSV to edit the tabular data within a grid > - click on a primitive method to see Slang or C/C++ code > - ... > > Internally the content can be distinguished using pragmas: > > > myCss > <mime-type: text/css> > ^'body { > background-color: #ffffce; > }' > > > Are there any plans to move Pharo into this "not only Smalltalk" in methods direction? > > Is it already possible to easily extend Nautilus with "pluggable" custom panes depending on the > method content. > > I see that there are buttons on the Nautilus side. Wouldnt it be better to have "Tabs" > with "Source" as default and where I can add my own custom tabs? > > Would be a lot of work to provide editors and stylers for all the mime-types or autocompletion > for JavaScript, SQL, ... whatever. But the question is more "do we have the groundwork so > people can built up on it." > > Any comments? > > I'd like to see something like that... > a GSOC? > > > Thx > T. > > [1] http://scg.unibe.ch/research/helvetia > > >

March 27, 2013

Re: [Pharo-project] in anybody out there? who uses 2.0?

by Sean P. DeNigris

EstebanLM wrote > So... I wonder... is that because we made a really cool release, or just > because nobody is using it? I've ported most of my projects to 2.0, but I've been on holidays for a few weeks, so I haven't updated to the released version. I'll know better this week, but IIRC most of the bugs I noticed have been fixed. ----- Cheers, Sean -- View this message in context: http://forum.world.st/in-anybody-out-there-who-uses-2-0-tp4678552p4678640.h… Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

March 27, 2013