July 2011 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] Morph does not refresh or show

by StÃ©phane Ducasse

>> I would say, that's the only way how morphs should animate themselves. >> Because if you do it otherwise (like in a loop), then you pausing a >> rest of processing, blocking UI etc and this is not good. > > I agree, but the above code does not have that problem. In fact it > works pretty well, i.e. when the system is busy/slow it just sets the > end state of the animation. > >> A good example for morphs animation is bouncing atoms. But i'm not >> sure if it still residing in pharo images. > > Now if somebody is looking for an interesting project I would suggest > to implement CoreAnimation clone > (http://en.wikipedia.org/wiki/Core_Animation) CoreAnimation is a > beautiful and powerful object-oriented animation system for Cocoa. It > should be strait forward to port the API, because Cocoa is essentially > a nice implementation of Morphic. > Thanks for the pointer. I really think that we should start to move and have sexy new stuff. I hope that soon we will be done with the basic infrastructure of Pharo (file, collection, compiler...) so that we can do more fun stuff > Lukas > > -- > Lukas Renggli > www.lukas-renggli.ch >

July 28, 2011

Re: [Pharo-project] [update 1.4] #14060

by StÃ©phane Ducasse

(Point>>#dist:) asRingDefinition Now there is no automatic creation (because it would mean reifying everything). Now may be we will provide an interface. RIght now you have to explicitly create ring objects or convert existing ones to ring. We will add = because this is missing. Stef On Jul 27, 2011, at 12:50 PM, Damien Cassou wrote: > On Tue, Jul 26, 2011 at 7:38 PM, StÃ©phane Ducasse > <stephane.ducasse(a)inria.fr> wrote: >> so far veronica did a MC bridge and also >> You can have a look in the ringCaseStudy for example veronica creates ring object to replace the pseudoClass >> So normally ring use the API (or will use the API of ring) and we will be able to browse remote or pseudo or class in another kernel. > > That's blabla :-). How do I get the Ring meta-model instantiated for my image? > > -- > Damien Cassou > http://damiencassou.seasidehosting.st > > "Lambdas are relegated to relative obscurity until Java makes them > popular by not having them." James Iry >

July 28, 2011

Re: [Pharo-project] [update 1.3] #13289

by Lukas Renggli

Thank you! On 28 July 2011 11:29, Marcus Denker <marcus.denker(a)inria.fr> wrote: > 13289 > ----- > > Issue 4555: Â Â Fix SUnit to prevent forked process from escaping to debugger > Issue 4558: Â Â Test Runner UI is strange > > > -- > Marcus Denker -- http://marcusdenker.de > > > -- Lukas Renggli www.lukas-renggli.ch

July 28, 2011

Re: [Pharo-project] [update 1.3] #13288

by Lukas Renggli

Great. Thanks a lot :-) On 28 July 2011 11:19, Marcus Denker <marcus.denker(a)inria.fr> wrote: > 13288 > ----- > > Issue 4500: Â Â Put SUnit-Help be put into a separate package > Issue 4508: Â Â SimpleMorphic package is back. Remove > > > > -- > Marcus Denker -- http://marcusdenker.de > > > -- Lukas Renggli www.lukas-renggli.ch

July 28, 2011

Re: [Pharo-project] Morph does not refresh or show

by Lukas Renggli

>> Now if somebody is looking for an interesting project I would suggest >> to implement CoreAnimation clone >> (http://en.wikipedia.org/wiki/Core_Animation) CoreAnimation is a >> beautiful and powerful object-oriented animation system for Cocoa. It >> should be strait forward to port the API, because Cocoa is essentially >> a nice implementation of Morphic. > > What about licensing issues? I don't know. The implementation is proprietary and there is no source code available. I would just take the architecture/API as inspiration for an implementation in Smalltalk. Clutter (http://www.clutter-project.org/) and an uncountable number of Javascript libraries contain open-source implementation of such animation frameworks (LGPL though). Lukas -- Lukas Renggli www.lukas-renggli.ch

July 28, 2011

[Pharo-project] [update 1.3] #13289

by Marcus Denker

13289 ----- Issue 4555: Fix SUnit to prevent forked process from escaping to debugger Issue 4558: Test Runner UI is strange -- Marcus Denker -- http://marcusdenker.de

July 28, 2011

[Pharo-project] [update 1.3] #13288

by Marcus Denker

13288 ----- Issue 4500: Put SUnit-Help be put into a separate package Issue 4508: SimpleMorphic package is back. Remove -- Marcus Denker -- http://marcusdenker.de

July 28, 2011

Re: [Pharo-project] Morph does not refresh or show

by Igor Stasenko

On 28 July 2011 09:58, Lukas Renggli <renggli(a)gmail.com> wrote: >>> ScrollBar>>animateValue: aNumber duration: anInteger >>> Â Â Â Â anInteger <= 0 >>> Â Â Â Â Â Â Â Â ifTrue: [ self setValue: aNumber ] >>> Â Â Â Â Â Â Â Â ifFalse: [ >>> Â Â Â Â Â Â Â Â Â Â Â Â | startTime start | >>> Â Â Â Â Â Â Â Â Â Â Â Â startTime := Time millisecondClockValue. >>> Â Â Â Â Â Â Â Â Â Â Â Â start := value roundTo: scrollDelta. >>> Â Â Â Â Â Â Â Â Â Â Â Â [ | delta | >>> Â Â Â Â Â Â Â Â Â Â Â Â [ (delta := Time millisecondClockValue - startTime) < anInteger ] >>> whileTrue: [ >>> Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â self setValue: (aNumber - start) * (delta / anInteger) + start. >>> Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Processor yield ]. >>> Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â self setValue: aNumber ] >>> Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â fork ] >>> >>> Typically morphic animations should be implemented implemented using >>> the built-in stepping mechanism (#wantsSteps, #step, ...), but that's >>> not always possible. >> >> I would say, that's the only way how morphs should animate themselves. >> Because if you do it otherwise (like in a loop), then you pausing a >> rest of processing, blocking UI etc and this is not good. > > I agree, but the above code does not have that problem. In fact it > works pretty well, i.e. when the system is busy/slow it just sets the > end state of the animation. > >> A good example for morphs animation is bouncing atoms. But i'm not >> sure if it still residing in pharo images. > > Now if somebody is looking for an interesting project I would suggest > to implement CoreAnimation clone > (http://en.wikipedia.org/wiki/Core_Animation) CoreAnimation is a > beautiful and powerful object-oriented animation system for Cocoa. It > should be strait forward to port the API, because Cocoa is essentially > a nice implementation of Morphic. > What about licensing issues? > Lukas > > -- > Lukas Renggli > www.lukas-renggli.ch > > -- Best regards, Igor Stasenko AKA sig.

July 28, 2011

Re: [Pharo-project] Downloading 1.4

by Johannes Rasche

Thank you Sean, though I knew already that Sophie would be a good source to harvest this, I didn't had time to figure it out - must try it right now :) Cheers Johannes Johannes Rasche Hagelberger Str. 56 10965 Berlin mail: johannesrasche(a)me.com www: http://myNeat.org fon: +49-30-7469 4425 fax: +49-30-315 66 821 Am 27.07.2011 um 15:42 schrieb Sean P. DeNigris: > I had previously pulled Quicktime video code from Sophie. I wrote > instructions on how to use it here: > > http://seandenigris.com/blog/?p=723 > > -- > View this message in context: http://forum.world.st/Downloading-1-4-tp3696454p3698535.html > Sent from the Pharo Smalltalk mailing list archive at Nabble.com. >

July 28, 2011

Re: [Pharo-project] FloatArray inaccuracy

by Martin Dias

On Thu, Jul 28, 2011 at 4:54 AM, Igor Stasenko <siguctua(a)gmail.com> wrote: > Float numbers are inexact and always been. > > Maybe you meant that they are more inexact than you expected? :) > > FloatArray stores floats using 32-bit floating point precision format. > While Float(s) using 64 bits. > No surprise that values stored in FloatArray are less precise. > > Ahhhhhhhhhhh! you are right... I was storing 64 bits: serialize: aFloat on: aWriteStream aWriteStream nextNumber: 4 put: (aFloat at: 1); nextNumber: 4 put: (aFloat at: 2). materializeFrom: aReadStream ^ (Float new: 2) at: 1 put: (aReadStream nextNumber: 4); at: 2 put: (aReadStream nextNumber: 4); yourself. that's why I see a difference! thanks!!! On 28 July 2011 08:34, Martin Dias <tinchodias(a)gmail.com> wrote: > > If forgot to specify that I run this on Pharo 1.3 build #226 in Windows > with > > : > > > > Smalltalk vmVersion ----> 'Croquet Closure Cog VM [CoInterpreter > > VMMaker.oscog-eem.56]' > > > > Martin > > > > On Thu, Jul 28, 2011 at 3:30 AM, Martin Dias <tinchodias(a)gmail.com> > wrote: > >> > >> Hi > >> > >> I found that FloatArray>>at:put: is inaccurate: > >> > >> | floats | > >> floats := FloatArray new: 1. > >> floats at: 1 put: 11.22321. > >> floats at: 1 " ------------> 11.223210334777832 " > >> > >> > >> Do you know this issue? > >> > >> > >> This is the implementation of at:put:: > >> > >> at: index put: value > >> <primitive: 'primitiveAtPut' module: 'FloatArrayPlugin'> > >> value isFloat > >> ifTrue:[self basicAt: index put: value asIEEE32BitWord] > >> ifFalse:[self at: index put: value asFloat]. > >> ^value > >> > >> Thanks in advance > >> Martin > > > > > > > > -- > Best regards, > Igor Stasenko AKA sig. > >

July 28, 2011