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

Re: [Pharo-users] Solution: ODBC - could not coerce arguments

by Sven Van Caekenberghe

> On 10 Apr 2016, at 15:03, Robert Kuszinger <kuszinger(a)giscom.hu> wrote: > > > Hi All, > > > Just for the records, I've found the answer finally on my previous question. > > YES it was an encoding problem. > > It is your responsibility to know how your ODBC link (in ODBC administrator) is configured and what encoding it is waiting for. > > All strings must be passed for the ODBC classes correctly encoded. > > In my example it was CP1250. > > > encodedquery := yourquery encodeWith: (ZnByteEncoder newForEncoding: 'cp1250'). It's great that you found your way out. Good of you to report back. > (Yes, Zn... classes are present as I'm making it for web) Zn is a standard part of Pharo as HTTP is a crucial technology in todays world. I just wanted to clarify that ZnByteEncoder is part of the package Zinc-Character-Encoding which has nothing to do with web, just as the classes in Zinc-Resource-Meta they are dependents of Zinc that are generally useful. BTW, it is better to say (ZnCharacterEncoder newForEncoding: 'cp1250') or even 'cp1250' asZnCharacterEncoder (or #cp1250 asZnCharacterEncoder) since ZnByteEncoder is an implementation class. > It results in a ByteArray but don't worry, ODBC system accepts it in execute: and maybe its other messages as well. > > Best regards > Robert > >

April 10, 2016

Solution: ODBC - could not coerce arguments

by Robert Kuszinger

Hi All, Just for the records, I've found the answer finally on my previous question. YES it was an encoding problem. It is your responsibility to know how your ODBC link (in ODBC administrator) is configured and what encoding it is waiting for. All strings must be passed for the ODBC classes correctly encoded. In my example it was CP1250. *encodedquery := yourquery* *encodeWith: (ZnByteEncoder newForEncoding: 'cp1250').* (Yes, Zn... classes are present as I'm making it for web) It results in a ByteArray but don't worry, ODBC system accepts it in *execute:* and maybe its other messages as well. Best regards Robert

April 10, 2016

finding Pharo Launcher

by Mark Bestley

where can you get a ready to run Pharo Launcher from (I am interested in OSX but other OSes should be answered as well). I would like a Pharo 5 64 bit one to try but I can understand only a Pharo 4 one being advertised. I looked on the Pharo Downloads page <http://pharo.org/download> and could not find it. Googling just gives announcements of it and old messages for email lists. and latest is <https://pharoweekly.wordpress.com/2016/01/15/pharo-launcher-spur-and-prespu…> which gives the Smalltalk Hub link which is not much help to getting started I suspect it just needs a small edit to the downloads page to make it findable for me but if it is to be used as an entry point then perhaps it need to be made more obvious on the pharo.org pages. -- Thanks Mark

April 10, 2016

ODBC question - could not coerce arguments

by Robert Kuszinger

Hello Everyone! I'm facing a problem with ODBC which may be related with character encoding. >From the debugger, it is: *'Could not coerce arguments'* , error message is caught here: externalCallFailed "Raise an error after a failed call to an external function" | errCode | errCode := ExternalFunction getLastError. "this allows us to look at the actual error code" ^self error: (ExternalFunction errorMessageFor: errCode). The SQL command is (runs well in SQL Server manager): update gcp_users SET user_name='VERGA VeszprÃ©mi ErdÅgazdasÃ¡g Zrt.', user_name2='', user_city='8200 VeszprÃ©m', user_custom_1='88-591-545*', user_profession='Jutasi u. 10.' WHERE user_email='molnar(a)drfrohlich.hu' AND user_custom_2='0524' The sql statement above is copied from the debugger as well, caught here: sqlExecDirect: queryString connection checkSQLReturn: (ODBCLibrary default sqlExecDirect: handle statement: queryString length: queryString size ) statement: handle. being as the querystring, class *WideString* (!?). I'm trying also to convert it to CP1250 (which has all the characters I need, actually data comes from a CP1250 txt file and converts well into pharo system) but it also results in a WideString object.. Example: (CP1250TextConverter new convertFromSystemString: 'Å±Ã¡ÅÃ') --> shows WideString in debugger. I think CP1250 should result in a ByteString... Is this the problem (could not coerce arguments). thanks Robert

April 10, 2016

Re: [Pharo-users] New project: AR.Drone communication API in Pharo

by Volkert

Nice :-) On 10.04.2016 12:05, Ronie Salgado wrote: > Ok, I made a cleanup on the OSWindow joystick support. I also added > the OSWindowGenericRenderer interface which is implemented by a thin > wrapper around the SDL2 renderer interface. I have tested this on > Linux using a XBox 360 controller (using SDL2 GameController > interface) and a PS2 controller via an USB adapter (using SDL2 > Joystick interface). Later I will test it on Windows and Mac. > > ============================= > Here is the demo: > https://www.youtube.com/watch?v=lABfEmToHLQ&feature=youtu.be > > OSWindowJoystickExample new open. > > Xbox 360/mapped controls > Left stick: move character > X button: shoot > Start: reset > > ============================= > > I also added a simple examples using the OSWindowGenericRenderer: > > OSWindowGenericRendererDrawingExample new open. > > ============================= > > I also modified the OSSDL2Driver >> #isSuitable method to not call the > hasPlugin method. The plugin seems to be unnecessary according to > several posts, and I am too lazy for fixing it. I guess that this > should be eventually integrated into Pharo 5 after some reviewing. > Before that, the latest version of OSWindow should be loaded manually. > For that, the packages should be loaded in the following order: > > OSWindow-Core > OSWindow-SDL2 > OSWindow-SDL2-Examples > > After that, the following doIt is required in a playground to start > receiving events: > > SDL2Constants initialize. > SDL_Event initialize > > Best regards, > Ronie > > 2016-04-10 3:15 GMT-03:00 phil(a)highoctane.be > <mailto:phil@highoctane.be> <phil(a)highoctane.be > <mailto:phil@highoctane.be>>: > > There is joystick support in 4.0, but not in Unix (plugin looks > pretty empty). > > Smalltalk vm listBuiltinModules select: [ :each | each beginsWith: > 'Joystick' ]. > > JoystickTabletPlugin VMMaker-oscog-nice13154.314 > > So, it is all in the InputEventSensor > > Check for senders of primReadJoystick: > > --> joystickXY:, joystickButtons: ... > > Phil > > > On Sun, Apr 10, 2016 at 1:18 AM, Stephan Eggermont > <stephan(a)stack.nl <mailto:stephan@stack.nl>> wrote: > > On 09-04-16 15:24, Carolina HernÃ¡ndez wrote: > > I couldn't find any direct way to use a joystick in Pharo, > if someone knows > about one, I'd like to integrate it to my code. > > https://github.com/Geal/Squeak-VM/tree/master/platforms/Mac%20OS/plugins/Jo… > > Refers to a joystick plugin for squeak. I don't know if that > is in the current distribution > (it doesn't seem to be), so you might ask on the vm-dev list > about it. I haven't looked > at it, so it could be for a RS-232 based joystick instead of > something more useful with > a modern pc. > > Can't SDL2 be used with a joystick? > > Stephan > > > > > > >

April 10, 2016

Re: [Pharo-users] New project: AR.Drone communication API in Pharo

by Ronie Salgado

Ok, I made a cleanup on the OSWindow joystick support. I also added the OSWindowGenericRenderer interface which is implemented by a thin wrapper around the SDL2 renderer interface. I have tested this on Linux using a XBox 360 controller (using SDL2 GameController interface) and a PS2 controller via an USB adapter (using SDL2 Joystick interface). Later I will test it on Windows and Mac. ============================= Here is the demo: https://www.youtube.com/watch?v=lABfEmToHLQ&feature=youtu.be OSWindowJoystickExample new open. Xbox 360/mapped controls Left stick: move character X button: shoot Start: reset ============================= I also added a simple examples using the OSWindowGenericRenderer: OSWindowGenericRendererDrawingExample new open. ============================= I also modified the OSSDL2Driver >> #isSuitable method to not call the hasPlugin method. The plugin seems to be unnecessary according to several posts, and I am too lazy for fixing it. I guess that this should be eventually integrated into Pharo 5 after some reviewing. Before that, the latest version of OSWindow should be loaded manually. For that, the packages should be loaded in the following order: OSWindow-Core OSWindow-SDL2 OSWindow-SDL2-Examples After that, the following doIt is required in a playground to start receiving events: SDL2Constants initialize. SDL_Event initialize Best regards, Ronie 2016-04-10 3:15 GMT-03:00 phil(a)highoctane.be <phil(a)highoctane.be>: > There is joystick support in 4.0, but not in Unix (plugin looks pretty > empty). > > Smalltalk vm listBuiltinModules select: [ :each | each beginsWith: > 'Joystick' ]. > > JoystickTabletPlugin VMMaker-oscog-nice13154.314 > > So, it is all in the InputEventSensor > > Check for senders of primReadJoystick: > > --> joystickXY:, joystickButtons: ... > > Phil > > > On Sun, Apr 10, 2016 at 1:18 AM, Stephan Eggermont <stephan(a)stack.nl> > wrote: > >> On 09-04-16 15:24, Carolina HernÃ¡ndez wrote: >> >>> I couldn't find any direct way to use a joystick in Pharo, if someone >>> knows >>> about one, I'd like to integrate it to my code. >>> >> >> https://github.com/Geal/Squeak-VM/tree/master/platforms/Mac%20OS/plugins/Jo… >> >> Refers to a joystick plugin for squeak. I don't know if that is in the >> current distribution >> (it doesn't seem to be), so you might ask on the vm-dev list about it. I >> haven't looked >> at it, so it could be for a RS-232 based joystick instead of something >> more useful with >> a modern pc. >> >> Can't SDL2 be used with a joystick? >> >> Stephan >> >> >> >> >> >> >

April 10, 2016

Re: [Pharo-users] New project: AR.Drone communication API in Pharo

by phil＠highoctane.be

There is joystick support in 4.0, but not in Unix (plugin looks pretty empty). Smalltalk vm listBuiltinModules select: [ :each | each beginsWith: 'Joystick' ]. JoystickTabletPlugin VMMaker-oscog-nice13154.314 So, it is all in the InputEventSensor Check for senders of primReadJoystick: --> joystickXY:, joystickButtons: ... Phil On Sun, Apr 10, 2016 at 1:18 AM, Stephan Eggermont <stephan(a)stack.nl> wrote: > On 09-04-16 15:24, Carolina HernÃ¡ndez wrote: > >> I couldn't find any direct way to use a joystick in Pharo, if someone >> knows >> about one, I'd like to integrate it to my code. >> > > https://github.com/Geal/Squeak-VM/tree/master/platforms/Mac%20OS/plugins/Jo… > > Refers to a joystick plugin for squeak. I don't know if that is in the > current distribution > (it doesn't seem to be), so you might ask on the vm-dev list about it. I > haven't looked > at it, so it could be for a RS-232 based joystick instead of something > more useful with > a modern pc. > > Can't SDL2 be used with a joystick? > > Stephan > > > > > >

April 10, 2016

Re: [Pharo-users] New project: AR.Drone communication API in Pharo

by stepharo

this is cool Stef Le 10/4/16 06:32, Ronie Salgado a Ã©crit : > > Can't SDL2 be used with a joystick? > > > It can be used. Although, joystick support was not very well > integrated into OSWindow because joystick events are not being sent > into a specific window. Now I am doing a cleanup on the joystick > support, by sending the event to all the windows. I will publish an > example soon. > > In SDL2 there are also two APIs for joysticks, the Joystick API and > the GameController API (Joystick + layout mapping). I originally made > the bindings only for the Joystick API. I just made the bindings for > the GameController API, which is more useful, since you do not have to > worry about different joystick layouts. There are also some events for > detecting when a joystick is connected or disconnected from the > machine which I am adding. > > > > 2016-04-09 20:18 GMT-03:00 Stephan Eggermont <stephan(a)stack.nl > <mailto:stephan@stack.nl>>: > > On 09-04-16 15:24, Carolina HernÃ¡ndez wrote: > > I couldn't find any direct way to use a joystick in Pharo, if > someone knows > about one, I'd like to integrate it to my code. > > https://github.com/Geal/Squeak-VM/tree/master/platforms/Mac%20OS/plugins/Jo… > > Refers to a joystick plugin for squeak. I don't know if that is in > the current distribution > (it doesn't seem to be), so you might ask on the vm-dev list about > it. I haven't looked > at it, so it could be for a RS-232 based joystick instead of > something more useful with > a modern pc. > > Can't SDL2 be used with a joystick? > > Stephan > > > > >

April 10, 2016

Re: [Pharo-users] New project: AR.Drone communication API in Pharo

by Ronie Salgado

> > Can't SDL2 be used with a joystick? It can be used. Although, joystick support was not very well integrated into OSWindow because joystick events are not being sent into a specific window. Now I am doing a cleanup on the joystick support, by sending the event to all the windows. I will publish an example soon. In SDL2 there are also two APIs for joysticks, the Joystick API and the GameController API (Joystick + layout mapping). I originally made the bindings only for the Joystick API. I just made the bindings for the GameController API, which is more useful, since you do not have to worry about different joystick layouts. There are also some events for detecting when a joystick is connected or disconnected from the machine which I am adding. 2016-04-09 20:18 GMT-03:00 Stephan Eggermont <stephan(a)stack.nl>: > On 09-04-16 15:24, Carolina HernÃ¡ndez wrote: > >> I couldn't find any direct way to use a joystick in Pharo, if someone >> knows >> about one, I'd like to integrate it to my code. >> > > https://github.com/Geal/Squeak-VM/tree/master/platforms/Mac%20OS/plugins/Jo… > > Refers to a joystick plugin for squeak. I don't know if that is in the > current distribution > (it doesn't seem to be), so you might ask on the vm-dev list about it. I > haven't looked > at it, so it could be for a RS-232 based joystick instead of something > more useful with > a modern pc. > > Can't SDL2 be used with a joystick? > > Stephan > > > > >

April 10, 2016

Re: [Pharo-users] How to determine if a file is hidden

by Damien Pollet

On 10 April 2016 at 00:13, Robert J Rothwell <r.j.rothwell(a)gmail.com> wrote: > Should I be able to use OSWindows to use getfileinfo from within pharo? No, to run external programs, the package you want is OSSubProcess.

April 9, 2016