November 2013 - Pharo-users

Re: [Pharo-users] Writing a GUI - Where to start?

by Benjamin

It seems that you return the wrong object somewhere :) Could you commit your code somewhere so I can have a look ? Ben On 22 Nov 2013, at 11:01, prova email <prova213(a)hotmail.it> wrote: > I started to use Spec, i love nested layouts and so on. But i've got a little problem. I'm creating a Window with 14 TextInputFieldModel and 14 ButtonModel and, to avoid the definition of 28 different instance variables (obviously), i created two arrays which contain the ButtonModel and the TextInputFieldModel that i need. > > ^ SpecLayout composed > > newColumn: [ :columnTeam | > 1 to: 14 do:[:i| > columnTeam > newRow: [ :rowPlayer | > rowPlayer > add: (textPlayer at:i) ; > add:#captainButton; > add: (buttonStartingEleven at:i). > ]. > > ..... > > This is what i did in the defaultSpec of my Player class. captainButton is a RadioButton defined in self instantiateModels: in initializeWidgets, while textPlayer and buttonStartingEleven are the arrays of above. > Theoretically the idea is great, while in practice it doesn't work. It give me the following message: > TextInputFieldModel>>layoutFrame: > > Help me please! > > Paolo > > > > From: jfabry(a)dcc.uchile.cl > > Date: Wed, 20 Nov 2013 14:38:58 -0300 > > To: pharo-users(a)lists.pharo.org > > Subject: Re: [Pharo-users] Writing a GUI - Where to start? > > > > > > I recommend you to go with Spec. It is the newest and designed to be the most capable. It is also the way forward, it will be the 'standard' GUI builders in the future. We know that the documentation right now is far from optimal. Ben and I will work on that in January. > > > > On Nov 20, 2013, at 1:30 PM, Mun Mun <mun.sysdev(a)gmail.com> wrote: > > > > > Hi everyone, > > > > > > Nobody mentioned Polymorphic. My understanding is that both Spec and Polymorph are built on top of Morphic. I only looked at code example and brief tutorial for both of them, but it seemed to me that Polymorph was easier to grasp: it's quite obivous in the code where and how the widgets are built. I have trouble understanding how the job is done in Spec. On the other hand, Spec seems to have a lot of users in this mailling list. > > > > > > To sum up this thread with many different options proposed, what would be the right path for a newbie like me ? > > > > > > Thanks in advance ! > > > > > > > > > > > ---> Save our in-boxes! http://emailcharter.org <--- > > > > Johan Fabry - http://pleiad.cl/~jfabry > > PLEIAD lab - Computer Science Department (DCC) - University of Chile > > > >

Nov. 22, 2013

Re: [Pharo-users] How to combine Pharo Desktop and Seaside?

by Bahman Movaqar

On 11/22/2013 13:30, kilon alios wrote: > is there a pdf I can download ? I would love to take a look at seaside :) > This will definitely help you get started: http://www.hpi.uni-potsdam.de/hirschfeld/seaside/tutorial -- Bahman Movaqar (http://BahmanM.com) ERP Evaluation, Implementation & Deployment Consultant PGP Key ID: 0x6AB5BD68 (keyserver2.pgp.com)

Nov. 22, 2013

Re: [Pharo-users] Writing a GUI - Where to start?

by prova email

I started to use Spec, i love nested layouts and so on. But i've got a little problem. I'm creating a Window with 14 TextInputFieldModel and 14 ButtonModel and, to avoid the definition of 28 different instance variables (obviously), i created two arrays which contain the ButtonModel and the TextInputFieldModel that i need. ^ SpecLayout composed newColumn: [ :columnTeam | 1 to: 14 do:[:i| columnTeam newRow: [ :rowPlayer | rowPlayer add: (textPlayer at:i) ; add:#captainButton; add: (buttonStartingEleven at:i). ]. ..... This is what i did in the defaultSpec of my Player class. captainButton is a RadioButton defined in self instantiateModels: in initializeWidgets, while textPlayer and buttonStartingEleven are the arrays of above.Theoretically the idea is great, while in practice it doesn't work. It give me the following message: TextInputFieldModel>>layoutFrame: Help me please! Paolo > From: jfabry(a)dcc.uchile.cl > Date: Wed, 20 Nov 2013 14:38:58 -0300 > To: pharo-users(a)lists.pharo.org > Subject: Re: [Pharo-users] Writing a GUI - Where to start? > > > I recommend you to go with Spec. It is the newest and designed to be the most capable. It is also the way forward, it will be the 'standard' GUI builders in the future. We know that the documentation right now is far from optimal. Ben and I will work on that in January. > > On Nov 20, 2013, at 1:30 PM, Mun Mun <mun.sysdev(a)gmail.com> wrote: > > > Hi everyone, > > > > Nobody mentioned Polymorphic. My understanding is that both Spec and Polymorph are built on top of Morphic. I only looked at code example and brief tutorial for both of them, but it seemed to me that Polymorph was easier to grasp: it's quite obivous in the code where and how the widgets are built. I have trouble understanding how the job is done in Spec. On the other hand, Spec seems to have a lot of users in this mailling list. > > > > To sum up this thread with many different options proposed, what would be the right path for a newbie like me ? > > > > Thanks in advance ! > > > > > > ---> Save our in-boxes! http://emailcharter.org <--- > > Johan Fabry - http://pleiad.cl/~jfabry > PLEIAD lab - Computer Science Department (DCC) - University of Chile > >

Nov. 22, 2013

Re: [Pharo-users] How to combine Pharo Desktop and Seaside?

by kilon alios

is there a pdf I can download ? I would love to take a look at seaside :) On Fri, Nov 22, 2013 at 11:48 AM, phil(a)highoctane.be <phil(a)highoctane.be>wrote: > Hi, > > Very easy to do. > > Have a look at http://book.seaside.st > > You can also load my configuration from > http://www.smalltalkhub.com/#!/~philippeback/Hackathon/source > > This will load the HOWebStack properly, and an app I did for an hackathon. > > This will give you a sample to work from. > > There are a bunch of packages in there, get ready for quite a load. > > If you have issues with this tell me, I'll put a pre made image on my web > server for you. > > Regards, > > --- > Philippe Back > Dramatic Performance Improvements > Mob: +32(0) 478 650 140 | Fax: +32 (0) 70 408 027 > Mail:phil@highoctane.be | Web: http://philippeback.eu > Blog: http://philippeback.be | Twitter: @philippeback > Youtube: http://www.youtube.com/user/philippeback/videos > > High Octane SPRL > rue cour Boisacq 101 | 1301 Bierges | Belgium > > Pharo Consortium Member - http://consortium.pharo.org/ > Featured on the Software Process and Measurement Cast - > http://spamcast.libsyn.com > Sparx Systems Enterprise Architect and Ability Engineering EADocX Value > Added Reseller > > > > > On Fri, Nov 22, 2013 at 9:10 AM, kilon alios <kilon.alios(a)gmail.com>wrote: > >> ÎÎ±Î»ÏÏ Î®ÏÎ¸ÎµÏ ÏÏÎ¿Î½ Î¦Î¬ÏÎ¿ , Î£ÏÎÎ»Î¹Î¿ :) (welcome to pharo stelio) >> >> Its great to have another fellow Greek here. I dont know how Seaside >> works exactly but yes you can generate dynamically hmtl pages. I have only >> used Amber that also works with Pharo and it has objects to generate html >> dynamically. Most likely Aida-Web can do this too as well and there even >> more pharo libs for such tasks. I will let other members to tell you >> exactly how to do this in Seaside since they are much more experienced than >> me. >> >> >> On Fri, Nov 22, 2013 at 3:11 AM, steliosgan <steliosgan(a)gmail.com> wrote: >> >>> Hello, >>> >>> I am a newbie at smalltalk and I do not feel so comfortable with the >>> following question : >>> >>> I have created an application with Pharo 2.0 and I would like to know if >>> I >>> could present dynamically some results to an html page, using seaside. >>> (Actually, I have a class that creates an OrderedCollection and I want to >>> create an html table to fill it with the data from the collection).Is it >>> feasible? >>> >>> Thank you >>> >>> >>> >>> -- >>> View this message in context: >>> http://forum.world.st/How-to-combine-Pharo-Desktop-and-Seaside-tp4724166.ht… >>> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >>> >>> >> >

Nov. 22, 2013

Re: [Pharo-users] How to combine Pharo Desktop and Seaside?

by phil＠highoctane.be

Hi, Very easy to do. Have a look at http://book.seaside.st You can also load my configuration from http://www.smalltalkhub.com/#!/~philippeback/Hackathon/source This will load the HOWebStack properly, and an app I did for an hackathon. This will give you a sample to work from. There are a bunch of packages in there, get ready for quite a load. If you have issues with this tell me, I'll put a pre made image on my web server for you. Regards, --- Philippe Back Dramatic Performance Improvements Mob: +32(0) 478 650 140 | Fax: +32 (0) 70 408 027 Mail:phil@highoctane.be | Web: http://philippeback.eu Blog: http://philippeback.be | Twitter: @philippeback Youtube: http://www.youtube.com/user/philippeback/videos High Octane SPRL rue cour Boisacq 101 | 1301 Bierges | Belgium Pharo Consortium Member - http://consortium.pharo.org/ Featured on the Software Process and Measurement Cast - http://spamcast.libsyn.com Sparx Systems Enterprise Architect and Ability Engineering EADocX Value Added Reseller On Fri, Nov 22, 2013 at 9:10 AM, kilon alios <kilon.alios(a)gmail.com> wrote: > ÎÎ±Î»ÏÏ Î®ÏÎ¸ÎµÏ ÏÏÎ¿Î½ Î¦Î¬ÏÎ¿ , Î£ÏÎÎ»Î¹Î¿ :) (welcome to pharo stelio) > > Its great to have another fellow Greek here. I dont know how Seaside works > exactly but yes you can generate dynamically hmtl pages. I have only used > Amber that also works with Pharo and it has objects to generate html > dynamically. Most likely Aida-Web can do this too as well and there even > more pharo libs for such tasks. I will let other members to tell you > exactly how to do this in Seaside since they are much more experienced than > me. > > > On Fri, Nov 22, 2013 at 3:11 AM, steliosgan <steliosgan(a)gmail.com> wrote: > >> Hello, >> >> I am a newbie at smalltalk and I do not feel so comfortable with the >> following question : >> >> I have created an application with Pharo 2.0 and I would like to know if I >> could present dynamically some results to an html page, using seaside. >> (Actually, I have a class that creates an OrderedCollection and I want to >> create an html table to fill it with the data from the collection).Is it >> feasible? >> >> Thank you >> >> >> >> -- >> View this message in context: >> http://forum.world.st/How-to-combine-Pharo-Desktop-and-Seaside-tp4724166.ht… >> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >> >> >

Nov. 22, 2013

Re: [Pharo-users] How to combine Pharo Desktop and Seaside?

by kilon alios

ÎÎ±Î»ÏÏ Î®ÏÎ¸ÎµÏ ÏÏÎ¿Î½ Î¦Î¬ÏÎ¿ , Î£ÏÎÎ»Î¹Î¿ :) (welcome to pharo stelio) Its great to have another fellow Greek here. I dont know how Seaside works exactly but yes you can generate dynamically hmtl pages. I have only used Amber that also works with Pharo and it has objects to generate html dynamically. Most likely Aida-Web can do this too as well and there even more pharo libs for such tasks. I will let other members to tell you exactly how to do this in Seaside since they are much more experienced than me. On Fri, Nov 22, 2013 at 3:11 AM, steliosgan <steliosgan(a)gmail.com> wrote: > Hello, > > I am a newbie at smalltalk and I do not feel so comfortable with the > following question : > > I have created an application with Pharo 2.0 and I would like to know if I > could present dynamically some results to an html page, using seaside. > (Actually, I have a class that creates an OrderedCollection and I want to > create an html table to fill it with the data from the collection).Is it > feasible? > > Thank you > > > > -- > View this message in context: > http://forum.world.st/How-to-combine-Pharo-Desktop-and-Seaside-tp4724166.ht… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

Nov. 22, 2013

Re: [Pharo-users] NativeBoost Questions while wrapping FMOD

by Sean P. DeNigris

Igor Stasenko wrote >> The better way is to subclass from NBExternalObject then > which made exactly for such purposes, by holding an opaque handle to > something (you don't care what is inside), and simplifies a lot of things. I made "NBExternalObject subclass: #FMOD_SYSTEM". I then tried to use it via: system := FMOD_SYSTEM new. err := self System_CreateNBExternalObject: system. With callout: ^ self nbCall: #(FMOD_RESULT FMOD_System_Create(NBExternalObject system)). For the argument type in the signature, for good measure I tried: 1. NBExternalObject 2. FMOD_SYSTEM 3. NBExternalAddress All three with zero, one, and two *'s after. The only one that didn't report some variety of "An instance of Xyz expected" was "FMOD_System_Create(FMOD_SYSTEM system)" for which the library returns an invalid argument error code. btw if anyone wants to play with it: 1. Gofer it smalltalkhubUser: 'SeanDeNigris' project: 'FMOD'; package: 'FMOD'; load. 2. Download the FMOD library for your platform: - windows - http://www.fmod.org/download/fmodstudio/api/Win/fmodstudioapi10208win-insta… - Mac - http://www.fmod.org/download/fmodstudio/api/Mac/fmodstudioapi10208mac-insta… 3. Copy the library to "FileLocator imageDirectory / 'FMOD Programmers API/api/lowlevel/lib/libfmod.dylib'" The working example is: | sound | sound := FmodSound fromFile: '/path/to/file.mp3' asFileReference. [ sound play ] fork. The broken one described above is: "FMOD exampleNBExternalObject." ----- Cheers, Sean -- View this message in context: http://forum.world.st/NativeBoost-Questions-while-wrapping-FMOD-tp4724116p4… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Nov. 22, 2013

Re: [Pharo-users] NativeBoost Questions while wrapping FMOD

by Igor Stasenko

On 22 November 2013 01:23, Sean P. DeNigris <sean(a)clipperadams.com> wrote: > Igor Stasenko wrote > >> err.. again, you must pass an address where value will be stored, > > hee hee... sorry... I don't understand enough of what's going on behind the > scenes to adapt well. I reasoned that since last time, the signature was > "Whatever**" and you said to make it "NBExternalAddress*", that therefore > "Whatever*" (one less *) would be "NBExternalAddress" (also one less *). > > While we're here, I'll ask my other questions... > > 1. What's the differenct between <primitive: #primitiveNativeCall module: > #NativeBoostPlugin> and the variant with error:? What does the second one > buy you? > > Historically, NB was first running on Squeak VM, which has no support for primitive error. Using extra #error: keyword in primitive is HIGHLY recommended, unless you want to deal with some quite rare (but possible and thus very hard to track down) wrong error reporting. > 2. instead of returning useful objects, FMOD returns error codes and you > pass a pointer to receive the object. > > - The first consequence is that I have to wrap all the calls e.g. "self > processErrorCode: self primCreate." where > processErrorCode: anInteger > anInteger = 0 ifFalse: [ self error: 'FMOD returned error code ', > anInteger > asString ]. > Is there a more graceful way to do that? > > i doubt so.. since it is library API which dictates you to use it in certain way. The proper error handling never hurts (except from causing extra code bloat, of course :) > - The second issue is how to create a Smalltalk object from the pointer. > What I've been doing is: > | soundHandle | > soundHandle := NBExternalAddress new. > self processErrorCode: (self primCreate: soundHandle on: system > handle > fromFile: file fullName). > sound := FmodSystemSound on: soundHandle. > Again, is there a better way? I thought to subclass NBExternalAddress, but > evaluating "sound := FmodSystemSound new" to pass to the callout seemed a > bit dirty i.e. it is not a invalid instance until initialized by the > callout. I also played around with NBExternalObject, but couldn't get that > to work either... > > The better way is to subclass from NBExternalObject then which made exactly for such purposes, by holding an opaque handle to something (you don't care what is inside), and simplifies a lot of things. > Thanks for all the support. This is fun!! > > You are very welcome. > > > ----- > Cheers, > Sean > -- > View this message in context: > http://forum.world.st/NativeBoost-Questions-while-wrapping-FMOD-tp4724116p4… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > -- Best regards, Igor Stasenko.

Nov. 22, 2013

Re: [Pharo-users] Any problems known here?

by Igor Stasenko

On 21 November 2013 17:55, Friedrich Dominicus < frido(a)q-software-solutions.de> wrote: > Norbert Hartl <norbert(a)hartl.name> writes: > > > Am 21.11.2013 um 06:57 schrieb Friedrich Dominicus > > <frido(a)q-software-solutions.de>: > > > >> Norbert Hartl <norbert(a)hartl.name> writes: > >> > >>> Am 20.11.2013 um 18:42 schrieb Friedrich Dominicus > >>> <frido(a)q-software-solutions.de>: > >>> > >>> I wonder if anyone has problems running a Pharo on a 64-bit System > >>> (Debian) with multiarch. Because strange enough it can suddenly > >>> not find > >>> vm-display-X11 any more > >>> > >>> You need to install the desktop variant: > >> I guess this will do for Ubuntu and Debian. > >> > >> But my probem was much more profane > >> and ldd o vm-display-X11 has informed me that two libraries where not > >> there. I installed them manually and after that Pharo start working > >> again. > >> > >> So yeah ldd is your friend. > >> > >> But thanks for taking the time helping me. > >> > > Can you tell which libraries were missing? Maybe the dependencies of > > the package needs to be adjusted. Can you tell which debian version > > and channel (stable,â¦) you are using and what files were missing? I > > think you know that but if you have the file you can find the package > > that needs to be installed by doing > I've not installed from the repository. I'm using Debian. And the > missing libraries were libICE.so.6 and libSM.so > > (..roars..) i think a long-term solution is to get rid of these dependencies since they serve no purpose at all.. but for that, we need to check what and why display driver depends on those libs (but i bet it is completely unnecessary and can be avoided). > Regards > Friedrich > > -- Best regards, Igor Stasenko.

Nov. 22, 2013

Re: [Pharo-users] [launcher] Re: PharoLauncher howto (was: SimplePersistence ...)

by Sean P. DeNigris

btc wrote > By 'dig into the core' do you mean you need more than what the 'Enable > development environment' setting does to revert fullscreen. Oh, I saw that but didn't know what it did. Very strange... now PharoLauncher no longer opens in #fullscreen, even if I download a fresh image from the ci server... ----- Cheers, Sean -- View this message in context: http://forum.world.st/PharoLauncher-howto-was-SimplePersistence-tp4724028p4… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Nov. 22, 2013

How to combine Pharo Desktop and Seaside?

by steliosgan

Hello, I am a newbie at smalltalk and I do not feel so comfortable with the following question : I have created an application with Pharo 2.0 and I would like to know if I could present dynamically some results to an html page, using seaside. (Actually, I have a class that creates an OrderedCollection and I want to create an html table to fill it with the data from the collection).Is it feasible? Thank you -- View this message in context: http://forum.world.st/How-to-combine-Pharo-Desktop-and-Seaside-tp4724166.ht… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Nov. 22, 2013

Re: [Pharo-users] NativeBoost Questions while wrapping FMOD

by Sean P. DeNigris

Igor Stasenko wrote >> err.. again, you must pass an address where value will be stored, hee hee... sorry... I don't understand enough of what's going on behind the scenes to adapt well. I reasoned that since last time, the signature was "Whatever**" and you said to make it "NBExternalAddress*", that therefore "Whatever*" (one less *) would be "NBExternalAddress" (also one less *). While we're here, I'll ask my other questions... 1. What's the differenct between <primitive: #primitiveNativeCall module: #NativeBoostPlugin> and the variant with error:? What does the second one buy you? 2. instead of returning useful objects, FMOD returns error codes and you pass a pointer to receive the object. - The first consequence is that I have to wrap all the calls e.g. "self processErrorCode: self primCreate." where processErrorCode: anInteger anInteger = 0 ifFalse: [ self error: 'FMOD returned error code ', anInteger asString ]. Is there a more graceful way to do that? - The second issue is how to create a Smalltalk object from the pointer. What I've been doing is: | soundHandle | soundHandle := NBExternalAddress new. self processErrorCode: (self primCreate: soundHandle on: system handle fromFile: file fullName). sound := FmodSystemSound on: soundHandle. Again, is there a better way? I thought to subclass NBExternalAddress, but evaluating "sound := FmodSystemSound new" to pass to the callout seemed a bit dirty i.e. it is not a invalid instance until initialized by the callout. I also played around with NBExternalObject, but couldn't get that to work either... Thanks for all the support. This is fun!! ----- Cheers, Sean -- View this message in context: http://forum.world.st/NativeBoost-Questions-while-wrapping-FMOD-tp4724116p4… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Nov. 22, 2013

Re: [Pharo-users] Scaled PNG image

by Igor Stasenko

Yay, it works.. if i use: canvas image: surface asForm at: bounds origin sourceRect: (0@0 extent: surface extent ) rule: 34. instead of canvas translucentImage: surface asForm at: bounds origin. hmm.. i just don't understand why: image: aForm at: aPoint sourceRect: sourceRect rule: rule "Note: The public use of this protocol is deprecated. It will become private. Nobody in the outside world must assume that a thing like a combination rule has any specific effect." why it is considered private? i wanna blend my form with another using specific rule, and this is the only protocol available for that.. weird. (Sorry for derailing topic, but that problem was quite annoying to me, i will take more deeper look at a fix later , and reply separately ;) ) On 22 November 2013 00:54, Igor Stasenko <siguctua(a)gmail.com> wrote: > > > > On 21 November 2013 21:27, Hilaire Fernandes <hilaire.fernandes(a)gmail.com>wrote: > >> Le 21/11/2013 08:21, StÃ©phane Ducasse a Ã©crit : >> > >> > On Nov 20, 2013, at 4:54 PM, Hilaire Fernandes < >> hilaire.fernandes(a)gmail.com> wrote: >> > >> >> Hello, >> >> >> >> In Pharo 2.0 (true in 1.4 as well), it looks PNG bitmap are wrongly >> >> rotated or scaled when they contain alpha transparency. >> >> >> >> In the example bellow with the joined bitmap, the alpha gray color are >> >> rendered darker when the imagemorph is scaled or rotated. >> >> >> >> Sqeak does not suffer this problem >> > >> > hilaire may be you should have a look at the changes made in the >> graphics package >> >> I took at look on the list, did not find anything yet >> >> not directly, right. But since symptoms are similar, i think this is most > probably the same case. > (and your digging shown that we actually having separate rule for > premultiplied alpha blend, which i could use for correctly > transferring/blending > cairo surface pixels in Forms) > > >> Hilaire >> >> > of squeak to identify the change. >> > We should have more tests. >> > >> > Stef >> >> >> >> >> >> | dir morph transform form| >> >> dir := FileSystem disk workingDirectory parent. >> >> morph := (ImageReadWriter formFromFileNamed: (dir / 'bubble.png') >> >> fullName) asMorph. >> >> transform := TransformationMorph new asFlexOf: morph. >> >> transform smoothingOn ; angle: Float pi / 3; scale: 1. >> >> transform openInWorld >> >> >> >> >> >> Thanks >> >> >> >> Hilaire >> >> >> >> >> >> -- >> >> Dr. Geo http://drgeo.eu >> >> <bubble.png> >> > >> > >> > >> >> >> -- >> Dr. Geo http://drgeo.eu >> >> >> > > > -- > Best regards, > Igor Stasenko. > -- Best regards, Igor Stasenko.

Nov. 22, 2013

Re: [Pharo-users] Scaled PNG image

by Igor Stasenko

On 21 November 2013 21:27, Hilaire Fernandes <hilaire.fernandes(a)gmail.com>wrote: > Le 21/11/2013 08:21, StÃ©phane Ducasse a Ã©crit : > > > > On Nov 20, 2013, at 4:54 PM, Hilaire Fernandes < > hilaire.fernandes(a)gmail.com> wrote: > > > >> Hello, > >> > >> In Pharo 2.0 (true in 1.4 as well), it looks PNG bitmap are wrongly > >> rotated or scaled when they contain alpha transparency. > >> > >> In the example bellow with the joined bitmap, the alpha gray color are > >> rendered darker when the imagemorph is scaled or rotated. > >> > >> Sqeak does not suffer this problem > > > > hilaire may be you should have a look at the changes made in the > graphics package > > I took at look on the list, did not find anything yet > > not directly, right. But since symptoms are similar, i think this is most probably the same case. (and your digging shown that we actually having separate rule for premultiplied alpha blend, which i could use for correctly transferring/blending cairo surface pixels in Forms) > Hilaire > > > of squeak to identify the change. > > We should have more tests. > > > > Stef > >> > >> > >> | dir morph transform form| > >> dir := FileSystem disk workingDirectory parent. > >> morph := (ImageReadWriter formFromFileNamed: (dir / 'bubble.png') > >> fullName) asMorph. > >> transform := TransformationMorph new asFlexOf: morph. > >> transform smoothingOn ; angle: Float pi / 3; scale: 1. > >> transform openInWorld > >> > >> > >> Thanks > >> > >> Hilaire > >> > >> > >> -- > >> Dr. Geo http://drgeo.eu > >> <bubble.png> > > > > > > > > > -- > Dr. Geo http://drgeo.eu > > > -- Best regards, Igor Stasenko.

Nov. 21, 2013

Re: [Pharo-users] NativeBoost Questions while wrapping FMOD

by Igor Stasenko

On 21 November 2013 22:40, Sean P. DeNigris <sean(a)clipperadams.com> wrote: > I'm wrapping the FMOD cross-platform audio library. The code is MIT and > lives > at http://smalltalkhub.com/#!/~SeanDeNigris/FMOD > > ======== > Problem #1: > ======== > > I'm calling into the FMOD library with: > primStoreIsPlaying: channelHandle in: isPlayingHandle > <primitive: #primitiveNativeCall module: #NativeBoostPlugin> > > "FMOD_RESULT FMOD_Channel_IsPlaying( > FMOD_CHANNEL *channel, > bool *isplaying);" > > ^ self nbCall: #(FMOD_RESULT > FMOD_Channel_IsPlaying(NBExternalAddress > channel, NBExternalAddress isPlayingHandle)). > > I call the above with: > isPlaying > | isPlaying | > isPlaying := NBExternalAddress new. > self primStoreIsPlaying: channel in: isPlaying. > ^ isPlaying value > 0. > > isPlaying is always 0. The method works directly from C with: > int isPlaying = 1; > while (isPlaying) { > FMOD_Channel_IsPlaying(channel, &isPlaying); > } > > I also tried changing the callout signature to "... bool* isPlayingHandle)" > and passing "isPlaying := true." instead of using the NBExternalAddress > stuff. > > err.. again, you must pass an address where value will be stored, ^ self nbCall: #(FMOD_RESULT FMOD_Channel_IsPlaying( > > NBExternalAddress channel, NBExternalAddress * isPlayingHandle)). otherwise you passing NULL pointer, and i quite surprised it not segfaults when you call it like that (looks like they have a check in the library ) you can also use NBExternalTypeValue for that: boolValueClass := NBExternalTypeValue ofType: 'bool'. "sure thing, creating anonymous class for each call is overkill, this should be done once, somewhere else" boolValue := boolValueClass new. self callTheThingWith: boolValue. boolValue value ifTrue: [... blah] (and this will work, assuming you have bool* in signature for this argument). I have a few more questions, but this is the most pressing as it's holding > up any further development. > > Thanks! > > > > ----- > Cheers, > Sean > -- > View this message in context: > http://forum.world.st/NativeBoost-Questions-while-wrapping-FMOD-tp4724116.h… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > -- Best regards, Igor Stasenko.

Nov. 21, 2013

Re: [Pharo-users] NativeBoost Questions while wrapping FMOD

by phil＠highoctane.be

We'll soon be able to do this in Pharo then :-) My friend David also uses FMOD in there. http://www.youtube.com/watch?v=077sYFHAgTM --- Philippe Back Dramatic Performance Improvements Mob: +32(0) 478 650 140 | Fax: +32 (0) 70 408 027 Mail:phil@highoctane.be | Web: http://philippeback.eu Blog: http://philippeback.be | Twitter: @philippeback Youtube: http://www.youtube.com/user/philippeback/videos High Octane SPRL rue cour Boisacq 101 | 1301 Bierges | Belgium Pharo Consortium Member - http://consortium.pharo.org/ Featured on the Software Process and Measurement Cast - http://spamcast.libsyn.com Sparx Systems Enterprise Architect and Ability Engineering EADocX Value Added Reseller On Thu, Nov 21, 2013 at 10:40 PM, Sean P. DeNigris <sean(a)clipperadams.com>wrote: > I'm wrapping the FMOD cross-platform audio library. The code is MIT and > lives > at http://smalltalkhub.com/#!/~SeanDeNigris/FMOD > > ======== > Problem #1: > ======== > > I'm calling into the FMOD library with: > primStoreIsPlaying: channelHandle in: isPlayingHandle > <primitive: #primitiveNativeCall module: #NativeBoostPlugin> > > "FMOD_RESULT FMOD_Channel_IsPlaying( > FMOD_CHANNEL *channel, > bool *isplaying);" > > ^ self nbCall: #(FMOD_RESULT > FMOD_Channel_IsPlaying(NBExternalAddress > channel, NBExternalAddress isPlayingHandle)). > > I call the above with: > isPlaying > | isPlaying | > isPlaying := NBExternalAddress new. > self primStoreIsPlaying: channel in: isPlaying. > ^ isPlaying value > 0. > > isPlaying is always 0. The method works directly from C with: > int isPlaying = 1; > while (isPlaying) { > FMOD_Channel_IsPlaying(channel, &isPlaying); > } > > I also tried changing the callout signature to "... bool* isPlayingHandle)" > and passing "isPlaying := true." instead of using the NBExternalAddress > stuff. > > I have a few more questions, but this is the most pressing as it's holding > up any further development. > > Thanks! > > > > ----- > Cheers, > Sean > -- > View this message in context: > http://forum.world.st/NativeBoost-Questions-while-wrapping-FMOD-tp4724116.h… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > >

Nov. 21, 2013

NativeBoost Questions while wrapping FMOD

by Sean P. DeNigris

I'm wrapping the FMOD cross-platform audio library. The code is MIT and lives at http://smalltalkhub.com/#!/~SeanDeNigris/FMOD ======== Problem #1: ======== I'm calling into the FMOD library with: primStoreIsPlaying: channelHandle in: isPlayingHandle <primitive: #primitiveNativeCall module: #NativeBoostPlugin> "FMOD_RESULT FMOD_Channel_IsPlaying( FMOD_CHANNEL *channel, bool *isplaying);" ^ self nbCall: #(FMOD_RESULT FMOD_Channel_IsPlaying(NBExternalAddress channel, NBExternalAddress isPlayingHandle)). I call the above with: isPlaying | isPlaying | isPlaying := NBExternalAddress new. self primStoreIsPlaying: channel in: isPlaying. ^ isPlaying value > 0. isPlaying is always 0. The method works directly from C with: int isPlaying = 1; while (isPlaying) { FMOD_Channel_IsPlaying(channel, &isPlaying); } I also tried changing the callout signature to "... bool* isPlayingHandle)" and passing "isPlaying := true." instead of using the NBExternalAddress stuff. I have a few more questions, but this is the most pressing as it's holding up any further development. Thanks! ----- Cheers, Sean -- View this message in context: http://forum.world.st/NativeBoost-Questions-while-wrapping-FMOD-tp4724116.h… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Nov. 21, 2013

Re: [Pharo-users] Scaled PNG image

by Hilaire Fernandes

Le 21/11/2013 21:27, Hilaire Fernandes a Ã©crit : > Le 21/11/2013 08:21, StÃ©phane Ducasse a Ã©crit : >> >> On Nov 20, 2013, at 4:54 PM, Hilaire Fernandes <hilaire.fernandes(a)gmail.com> wrote: >> >>> Hello, >>> >>> In Pharo 2.0 (true in 1.4 as well), it looks PNG bitmap are wrongly >>> rotated or scaled when they contain alpha transparency. >>> >>> In the example bellow with the joined bitmap, the alpha gray color are >>> rendered darker when the imagemorph is scaled or rotated. >>> >>> Sqeak does not suffer this problem >> >> hilaire may be you should have a look at the changes made in the graphics package > > I took at look on the list, did not find anything yet > Oh, look like an old fix can partially make it http://forum.world.st/ENH-Translucent-images-in-8-and-16-bit-screen-resolut… Joined .cs of this changes I don't understand this code, and I don't know its consequences on the all system. So someone should review it. Hilaire > Hilaire > >> of squeak to identify the change. >> We should have more tests. >> >> Stef >>> >>> >>> | dir morph transform form| >>> dir := FileSystem disk workingDirectory parent. >>> morph := (ImageReadWriter formFromFileNamed: (dir / 'bubble.png') >>> fullName) asMorph. >>> transform := TransformationMorph new asFlexOf: morph. >>> transform smoothingOn ; angle: Float pi / 3; scale: 1. >>> transform openInWorld >>> >>> >>> Thanks >>> >>> Hilaire >>> >>> >>> -- >>> Dr. Geo http://drgeo.eu >>> <bubble.png> >> >> >> > > -- Dr. Geo http://drgeo.eu

Nov. 21, 2013

Re: [Pharo-users] Scaled PNG image

by Hilaire Fernandes

Le 21/11/2013 08:21, StÃ©phane Ducasse a Ã©crit : > > On Nov 20, 2013, at 4:54 PM, Hilaire Fernandes <hilaire.fernandes(a)gmail.com> wrote: > >> Hello, >> >> In Pharo 2.0 (true in 1.4 as well), it looks PNG bitmap are wrongly >> rotated or scaled when they contain alpha transparency. >> >> In the example bellow with the joined bitmap, the alpha gray color are >> rendered darker when the imagemorph is scaled or rotated. >> >> Sqeak does not suffer this problem > > hilaire may be you should have a look at the changes made in the graphics package I took at look on the list, did not find anything yet Hilaire > of squeak to identify the change. > We should have more tests. > > Stef >> >> >> | dir morph transform form| >> dir := FileSystem disk workingDirectory parent. >> morph := (ImageReadWriter formFromFileNamed: (dir / 'bubble.png') >> fullName) asMorph. >> transform := TransformationMorph new asFlexOf: morph. >> transform smoothingOn ; angle: Float pi / 3; scale: 1. >> transform openInWorld >> >> >> Thanks >> >> Hilaire >> >> >> -- >> Dr. Geo http://drgeo.eu >> <bubble.png> > > > -- Dr. Geo http://drgeo.eu

Nov. 21, 2013

Re: [Pharo-users] Scaled PNG image

by Hilaire Fernandes

Le 21/11/2013 16:44, Igor Stasenko a Ã©crit : > Except that while adopting cairo surfaces i also has odd transparency > issues until i realized > that cairo surface stores pixel data using premultiplied alpha format,e.g.: > > pixelColor = (R*A, G*A, B*A, A) > > while bitblt assumes it is (R,G,B,A) Should not be related, right? Hilaire -- Dr. Geo http://drgeo.eu

Nov. 21, 2013

[launcher] Re: PharoLauncher howto (was: SimplePersistence ...)

by btc＠openinworld.com

Nov. 21, 2013

[launcher] Re: PharoLauncher howto (was: SimplePersistence ...)

by btc＠openinworld.com

Nov. 21, 2013

[launcher] Re: [Pharo-dev] PharoLauncher

by btc＠openinworld.com

Well spotted. It is explained by PharoLauncher>>setImageRepository: aTemplateRepository templateRepository: anImageRepository also being wrong and reversed. If you might like to contribute to PharoLauncher and want to get into the swing of things, pharo.fogbugz.com has a 'Launcher' project'where you can log Cases to which you can attach mcz files. btw, you might find the various #settingsOn: methods interesting. btw2, for a while I had been collaborating with Damien in private, but we recently decided to move this to [pharo-users] and adding a [launcher] tag. I've cross-posted there. cheers -ben Mark Bestley wrote: > On 21/11/2013 15:00, Sean P. DeNigris wrote: >> Just starting to play with it... looks cool. >> >> One thing is that I'd like to be able to choose the default image >> location. >> It feels wrong to install them under ~/Library/Preferences on the Mac... >> > > Agreed > > > However I am confused by the code > > createLauncher > ^ self basicNew > setImageRepository: PhLTemplateGroupRepository > forSelectedGroups > templateRepository: PhLDirectoryBasedImageRepository > inPharoPreferencesDirectory; > initialize; > yourself > > Aren't the parameters of setImage and template the wrong way round? ie > it seems to pass the template dir to the image and vice versa >

Nov. 21, 2013

Re: [Pharo-users] Help with SQLite3 package

by Michel

Thanks Joachim. I did it and it's better. Michel. > Michel, > > Maybe you should consider using a link instead of a copy of the file. > I would also suggest to only add a link within to the sqlite installation directory rather than the pharo directory. Because then pharo will find sqlite3.so as well and you have way fewer dependencies. > > Joachim > > Michel <michel.revesche(a)wanadoo.fr> schrieb: > >> Hi Joachim, >> >> I have a sqlite library in /usr/lib named 'libsqlite3.so.0.8.6'. This >> directory is of course in the path. >> >> I made a copy of this library in my pharo2.0/bin directory and changed >> its name to 'libsqlite3.so' and it fixed the problem ! >> >> So I got it thanks to your help and a little luck. Depending on the >> linux distro this library name would differ. Somebody knows where it is >> defined in the image ? >> >> Regards, >> Michel. >> >>> Hi Michel, >>> >>> I am neither a Pharo nor a sqlite expert, but I would guess the sqlite >>> library is not in your image directory or you are starting pharo >>> without setting the PATH to a location that contains the sqlite library. >>> >>> HTH, >>> >>> Joachim >>> >>> Am 20.11.13 18:13, schrieb Michel: >>>> Hi pharoers, >>>> >>>> I am a newbie with Pharo. >>>> >>>> I installed the SQLite3 package in the Pharo2 image with the >>>> MetacelloConfigurationBrowser and tried a test with this script : >>>> db := SQLiteConnection fileNamed: '/home/michel/base_CD/BaseCD.db'. >>>> resu := db executeQuery: 'SELECT * FROM T_album'. >>>> resu inspect. >>>> >>>> And I got this error : External module not found. >>>> >>>> I am on Fedora linux and I think that I should give somewhere (in >>>> SQLiteReference class ?) the address of the libsqlite3.so file. Am I >>>> right ? >>>> >>>> Kind Regards, >>>> Michel. >>>> >>>> >>> >> >>

Nov. 21, 2013

Re: [Pharo-users] PharoLauncher howto (was: SimplePersistence ...)

by Sean P. DeNigris

Torsten Bergmann wrote > Usually for "end user experience" the launcher opens in full world mode - > so you see no Pharo > background/world menu - only the launcher. I liked the "full world" effect once I got used to it, but Pharo's idea of "fullscreen" is jarring in the Mac world. Also, since there's no longer an item in the World Menu, one has to dig into the core to find out how to un-fullscreen oneself. IMHO, I would not open in fullscreen by default. ----- Cheers, Sean -- View this message in context: http://forum.world.st/PharoLauncher-howto-was-SimplePersistence-tp4724028p4… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Nov. 21, 2013