September 2009 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] [squeak-dev] Question about FFI and constants

by HernÃ¡n Morales Durand

Another alternative to what Andreas suggested is to reify in meaningful messages the constants, see senders of YAZODRFFILibrary>>odrCreate: in the Z3950 project at SqueakSource. Cheers, HernÃ¡n 2009/9/30 Mariano Martinez Peck <marianopeck(a)gmail.com>: > Hi folks: I am calling to the OpenDBX library and this library uses C > constants. Suppose something like this: > > enum odbxerr { > Â Â Â ODBX_ERR_SUCCESS, > #define ODBX_ERR_SUCCESSÂ Â ODBX_ERR_SUCCESS > Â Â Â ODBX_ERR_BACKEND, > #define ODBX_ERR_BACKENDÂ Â ODBX_ERR_BACKEND > Â Â Â ODBX_ERR_NOCAP, > #define ODBX_ERR_NOCAPÂ Â ODBX_ERR_NOCAP > Â Â Â ODBX_ERR_PARAM, > ......... > > > Then I have a function like this: > > char* odbx_error( odbx_t* handle, int error ) > > In that case the int error es the index of the array or I can use the > constant. > Right now, I am using int from 0 to N. But I would like to invoke calls to > that function using Smalltalk Strings that represent C constants. > > For example, now I have this: > > OpenDBXUnix>>apiError: handle number: err > Â Â Â "long odbx_error(odbx_t*, int)" > Â Â Â <cdecl: char* 'odbx_error' (ulong long) module: 'opendbx' > > Â Â Â ^self externalCallFailed > > And I call them this way for example: > > OpenDBXUnix apiError:Â handle number: 1. > > But, I would love to do: > > OpenDBXUnix apiError:Â handle number: 'ODBX_ERR_BACKEND'. > > Of course this fails because it cannot coerce and String to a long. > > So, that someone know how can I do this (if I can) ? > > Thanks > > Mariano > > > > > >

Sept. 30, 2009

[Pharo-project] Question about FFI and constants

by Torsten Bergmann

Maybe you will use PoolDictionaries. See pool/class "FFIConstants" in FFI package for example. Check the class side #initialize method where the values are assigned. SharedPool subclass: #FFIConstants ... It is used in ExternalFunction for example: ExternalObject subclass: #ExternalFunction instanceVariableNames: 'flags argTypes' classVariableNames: 'FFIErrorMessages' poolDictionaries: 'FFIConstants' category: 'FFI-Kernel' Bye Torsten BTW: Would be nice if Pharo will support scoping for pools later, something in the like of Win32OLEConstants::S_OK Win32Constants::S_OK -- Jetzt kostenlos herunterladen: Internet Explorer 8 und Mozilla Firefox 3.5 - sicherer, schneller und einfacher! http://portal.gmx.net/de/go/chbrowser

Sept. 30, 2009

[Pharo-project] StrikeFont Accujen in Pharo

by Jochen

Hallo, I'm porting a Squeak-Project to Pharo and I really need the "Accujen" StrikeFont with size 9. I know: those bitmap fonts look worse than the great FreeType fonts. But for my special case I need a very small/narrow but still readable font and there's nothing better than Accujen. So my question is, if it's possible to get the Accujen into Pharo. The StrikeFont class still exists but it seams like all fonts but DejaVu are missing now. Thanks for any help, if possible! Jochen

Sept. 30, 2009

[Pharo-project] Pharo ESUG Video

by Torsten Bergmann

http://mimer.msc.se/esug/M2U00055.mp4 includes Stef's presentation on Pharo from ESUG. Anyone able to link it on the webpage. Thx T. -- GRATIS fÃ¼r alle GMX-Mitglieder: Die maxdome Movie-FLAT! Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01

Sept. 30, 2009

Re: [Pharo-project] tabs with icons?

by StÃ©phane Ducasse

There are no stupid question! Just if you ask 5 times the same. But never before this is that people did not answer well Stef On Sep 30, 2009, at 8:23 PM, nullPointer wrote: > > > Is possible add and remove tabs dinamically? > > Exists a method for add tabs ( #labelsAndPages or something > similar ) , but > not is possible add a tab, and later remove by key, for example, > without > remove alls with that method? > > Regards, and excuse me if is a stupid question :) > > > Gary Chambers wrote: >> >> TabGroupMorph/TabSelectorMorph support arbitrary morphs as well as >> text >> labels. >> >> An example: >> >> >> |dialog| >> dialog := (UITheme builder newPluggableDialogWindow: 'Example tabs') >> useDefaultOKButton. >> dialog contentMorph: ( >> dialog newTabGroup: { >> (dialog newRow: {dialog newImage: MenuIcons smallFindIcon. dialog >> newLabel: 'Page 1'})-> >> dialog newPanel. >> 'Page 2'->dialog newPanel}). >> dialog model: nil. >> World openModal: dialog >> >> Regards, Gary >> >> ----- Original Message ----- >> From: "Tudor Girba" <tudor.girba(a)gmail.com> >> To: "Pharo Development" <pharo-project(a)lists.gforge.inria.fr> >> Sent: Tuesday, September 29, 2009 10:01 PM >> Subject: [Pharo-project] tabs with icons? >> >> >>> Hi, >>> >>> In Glamour we are using a TabGroupMorph (actually we use a subclass >>> that specifies LazyTabs). The question is if there is a way to add >>> an >>> icon instead of a string? >>> >>> Or perhaps is there another solution for a tab control that allows >>> for >>> icons in the tabs? >>> >>> Cheers, >>> Doru >>> >>> >>> -- >>> www.tudorgirba.com >>> >>> "What we can governs what we wish." >>> >>> >>> >>> >>> _______________________________________________ >>> Pharo-project mailing list >>> Pharo-project(a)lists.gforge.inria.fr >>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> >> >> _______________________________________________ >> Pharo-project mailing list >> Pharo-project(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> >> > > -- > View this message in context: http://n2.nabble.com/tabs-with-icons-tp3738940p3744448.html > Sent from the Pharo Smalltalk mailing list archive at Nabble.com. > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

Sept. 30, 2009

Re: [Pharo-project] tabs with icons?

by StÃ©phane Ducasse

check if it makes sense and submit in the UITheme example like methods. This is important to have examples inside the image. stef On Sep 30, 2009, at 4:07 PM, Alexandre Bergel wrote: > I added the snippet here: http://code.google.com/p/pharo/wiki/CodeSnippets > > Alexandre > > On 30 Sep 2009, at 05:31, Gary Chambers wrote: > >> TabGroupMorph/TabSelectorMorph support arbitrary morphs as well as >> text >> labels. >> >> An example: >> >> >> |dialog| >> dialog := (UITheme builder newPluggableDialogWindow: 'Example tabs') >> useDefaultOKButton. >> dialog contentMorph: ( >> dialog newTabGroup: { >> (dialog newRow: {dialog newImage: MenuIcons smallFindIcon. dialog >> newLabel: 'Page 1'})-> >> dialog newPanel. >> 'Page 2'->dialog newPanel}). >> dialog model: nil. >> World openModal: dialog >> >> Regards, Gary >> >> ----- Original Message ----- >> From: "Tudor Girba" <tudor.girba(a)gmail.com> >> To: "Pharo Development" <pharo-project(a)lists.gforge.inria.fr> >> Sent: Tuesday, September 29, 2009 10:01 PM >> Subject: [Pharo-project] tabs with icons? >> >> >>> Hi, >>> >>> In Glamour we are using a TabGroupMorph (actually we use a subclass >>> that specifies LazyTabs). The question is if there is a way to add >>> an >>> icon instead of a string? >>> >>> Or perhaps is there another solution for a tab control that allows >>> for >>> icons in the tabs? >>> >>> Cheers, >>> Doru >>> >>> >>> -- >>> www.tudorgirba.com >>> >>> "What we can governs what we wish." >>> >>> >>> >>> >>> _______________________________________________ >>> Pharo-project mailing list >>> Pharo-project(a)lists.gforge.inria.fr >>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> >> >> _______________________________________________ >> Pharo-project mailing list >> Pharo-project(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> > > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > > > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

Sept. 30, 2009

[Pharo-project] Fwd: [squeak-dev] Re: Alien & Squeak FFI issues on Snow Leopard.

by StÃ©phane Ducasse

Begin forwarded message: > From: Eliot Miranda <eliot.miranda(a)gmail.com> > Date: September 30, 2009 6:04:22 PM GMT+02:00 > To: The general-purpose Squeak developers list <squeak-dev(a)lists.squeakfoundation.org > >, vm-dev-request(a)lists.squeakfoundation.org > Cc: johnmci(a)smalltalkconsulting.com, Pharo-project(a)lists.gforge.inria.fr > Subject: Re: [squeak-dev] Re: [Pharo-project] Alien & Squeak FFI > issues on Snow Leopard. > Reply-To: The general-purpose Squeak developers list <squeak-dev(a)lists.squeakfoundation.org > > > > Craig Latta found a simple work-around which is to set the VM's > Info.plist variable "SqueakPluginsBuiltInOrLocalOnly" to false, so > that libraries are found on Snow Leopard. Up until now things have > been being found through vagaries if the Mac OS X dlopen call which > would, I think, search the paths in an executable used to find > dlls. i.e. prior to Snow Leopard if you tried to run something in > libSystem.B.dylib and you traced the logic in > sqMacUnixExternalPrims.c you'd find that dlopen was "finding" > libSystem.B.dylib in VM.app/Contents/Resources, even though it is > not there. > > Personally I think that sqMacUnixExternalPrims.c is ripe for a > rewrite. It is torturously complex. But Craig's workaround works > for us and takes the pressure off. > > P.S. I'm not on the Pharo list. Can someone forward this for me? > > On Wed, Sep 30, 2009 at 12:52 AM, Andrey Larionov <anlarionov(a)gmail.com > > wrote: > I think it's related http://forums.newspeaklanguage.org/index.php?topic=88.0 > > On Wed, Sep 30, 2009 at 06:13, John M McIntosh > <johnmci(a)smalltalkconsulting.com> wrote: > > Someone finally managed to fire up a Sophie app http://www.opensophie.org/ > > on Snow Leopard and immediately found an issue that also affects > > Squeak users who do fascinating things with FFI > > The innocent FFI call was > > > > apifstat: afileNo statBuffer: buffer > > <cdecl: long 'fstat' (long MacStat* ) module: 'libc.dylib'> > > ^self externalCallFailed > > > > Now it seems BEFORE Snow Leopard *somehow* the Squeak external > > primitive call api which is part of the VM to assist in loading > > plugins or finding function entry points in executable binaries or > > libraries would > > return the entry point for fstat by *somehow* finding libc.dylib > which > > is via /usr/lib/libc.dylib -> libSystem.dylib -> libSystem.B.dylib > > > > Interestingly this is found implicitly since the mac carbon vm > lookup > > logic never looks in /usr/lib/ > > > > Now in Snow Leopard it seems they do less implicit searching, > perhaps > > a security concern? Then it fails. > > > > In the past the Unix VM would search a hundred(sic) more places, > but I > > understand less today, but it might still work? Maybe /usr/lib is in > > the hit list? > > > > This issue also applies to Alien because it calls back to the VM for > > it to find the module and function entry point. > > > > Since I have received a request to ensure that doing an explicit > full > > path should be allowed in the squeak carbon macintosh vm. > > Then a change would be: > > > > apifstat: afileNo statBuffer: buffer > > <cdecl: long 'fstat' (long MacStat* ) module: '/usr/lib/ > libc.dylib'> > > ^self externalCallFailed > > > > I'll look at doing this shortly. > > > > However the workaround is to go to Sophie.app/Contents/Resources > > and do a ln -s /usr/lib/libc.dylib libc.dylib > > to create a symbolic link in the Resources directory for libc.dylib > > since we do explicitly look for libc.dylib in the Resources > directory. > > > > Obviously if you have a FFI call like above where you are calling a > > system library Oracle? for example. > > You might find it no longer works with Snow Leopard on the > Macintosh, > > so you should check. > > > > > > -- > > = > > = > > = > > > = > = > ====================================================================== > > John M. McIntosh <johnmci(a)smalltalkconsulting.com> Twitter: > > squeaker68882 > > Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com > > = > > = > > = > > > = > = > ====================================================================== > > > > > > > > > > > > _______________________________________________ > > Pharo-project mailing list > > Pharo-project(a)lists.gforge.inria.fr > > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > > >

Sept. 30, 2009

Re: [Pharo-project] Alien and special objects Array

by StÃ©phane Ducasse

I was tlakling about BlockClosure (but I'm certainly wrong) On Sep 30, 2009, at 4:43 PM, Johan Brichau wrote: > > On 30 Sep 2009, at 12:04, StÃ©phane Ducasse wrote: > >>>> >>> >>> I thought #fixTemp was for code compatibility but isn't really >>> needed >>> because of real closures? >> >> this is just for backward compatibility normally the method is empty >> on pharo > > In 10462 Encoder>>fixTemp: is not empty > > > ---------------------------- > Johan Brichau > johan.brichau(a)uclouvain.be > > > > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

Sept. 30, 2009

Re: [Pharo-project] tabs with icons?

by nullPointer

Is possible add and remove tabs dinamically? Exists a method for add tabs ( #labelsAndPages or something similar ) , but not is possible add a tab, and later remove by key, for example, without remove alls with that method? Regards, and excuse me if is a stupid question :) Gary Chambers wrote: > > TabGroupMorph/TabSelectorMorph support arbitrary morphs as well as text > labels. > > An example: > > > |dialog| > dialog := (UITheme builder newPluggableDialogWindow: 'Example tabs') > useDefaultOKButton. > dialog contentMorph: ( > dialog newTabGroup: { > (dialog newRow: {dialog newImage: MenuIcons smallFindIcon. dialog > newLabel: 'Page 1'})-> > dialog newPanel. > 'Page 2'->dialog newPanel}). > dialog model: nil. > World openModal: dialog > > Regards, Gary > > ----- Original Message ----- > From: "Tudor Girba" <tudor.girba(a)gmail.com> > To: "Pharo Development" <pharo-project(a)lists.gforge.inria.fr> > Sent: Tuesday, September 29, 2009 10:01 PM > Subject: [Pharo-project] tabs with icons? > > >> Hi, >> >> In Glamour we are using a TabGroupMorph (actually we use a subclass >> that specifies LazyTabs). The question is if there is a way to add an >> icon instead of a string? >> >> Or perhaps is there another solution for a tab control that allows for >> icons in the tabs? >> >> Cheers, >> Doru >> >> >> -- >> www.tudorgirba.com >> >> "What we can governs what we wish." >> >> >> >> >> _______________________________________________ >> Pharo-project mailing list >> Pharo-project(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > -- View this message in context: http://n2.nabble.com/tabs-with-icons-tp3738940p3744448.html Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

Sept. 30, 2009

Re: [Pharo-project] [squeak-dev] Re: Alien & Squeak FFI issues on Snow Leopard.

by John M McIntosh

The reason for the SqueakPluginsBuiltInOrLocalOnly was to prevent the VM from looking in about 100 places for a plugin before deciding to use the one built into the VM this saved several 10 of ms in launch time. At the time there was also a transition period between PowerPC and Universal plugins, the historical algorithm would try to load powerpc plugins lying loose in a developer's various libraries, versus using the newly complied ones supplied by the VM. So setting SqueakPluginsBuiltInOrLocalOnly to NO might lead to other interesting issues, versus for example doing a 'ln -s /usr/lib/ libc.dylib libc.dylib in the VM's resource folder. I will look at changing sqMacUnixExternalPrims.c to allow absolute paths, and also consider the changes Ian made lately to reduce the amount of searching that the original UnixExternalPrims.c did. On 2009-09-30, at 9:04 AM, Eliot Miranda wrote: > Craig Latta found a simple work-around which is to set the VM's > Info.plist variable "SqueakPluginsBuiltInOrLocalOnly" to false, so > that libraries are found on Snow Leopard. Up until now things have > been being found through vagaries if the Mac OS X dlopen call which > would, I think, search the paths in an executable used to find > dlls. i.e. prior to Snow Leopard if you tried to run something in > libSystem.B.dylib and you traced the logic in > sqMacUnixExternalPrims.c you'd find that dlopen was "finding" > libSystem.B.dylib in VM.app/Contents/Resources, even though it is > not there. > > Personally I think that sqMacUnixExternalPrims.c is ripe for a > rewrite. It is torturously complex. But Craig's workaround works > for us and takes the pressure off. > > P.S. I'm not on the Pharo list. Can someone forward this for me? -- = = = ======================================================================== John M. McIntosh <johnmci(a)smalltalkconsulting.com> Twitter: squeaker68882 Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com = = = ========================================================================

Sept. 30, 2009