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

Re: [Pharo-project] Issue 2841 in pharo: Heap equality should be transitive

by pharo＠googlecode.com

Updates: Status: FixProposed Comment #4 on issue 2841 by nicolas....(a)gmail.com: Heap equality should be transitive http://code.google.com/p/pharo/issues/detail?id=2841 (No comment was entered for this change.)

March 26, 2011

Re: [Pharo-project] Issue 2841 in pharo: Heap equality should be transitive

by pharo＠googlecode.com

Comment #3 on issue 2841 by nicolas....(a)gmail.com: Heap equality should be transitive http://code.google.com/p/pharo/issues/detail?id=2841 SLICE-Issue-2841-HeapEqualityShouldBeTransitive-ButHeapShouldNotBeSequenceable-nice.1 Author: nice I merged trunk changes and also moved Heap off SequenceableCollection hierarchy. I removed plenty of Sequenceable assumptions from HeapTests, and also some assumptions about equality in IntervalTests. I forbid usage of #at: #at:put: #removeAt:, that's not a legitimate API for a Heap. Only #first #add: #removeFirst #remove: shall be used. Of course, one thing remain to be done: move Heap to another package than Collections-Sequenceable. I didn't do it for at least two reasons: 1) I down't know how to classify a Heap, it's Ordered (partially), not Unordered, and not Sequenceable. 2) Heap must not be temporarily removed because used in Delay and World alarms, so package load order will be very important. I let the experts of smooth upgrading do it.

March 26, 2011

Re: [Pharo-project] Scaling dropped graphic

by Denis Kudriashov

Hello Hilaire It's because in past image opened in World by ScetchMorph. Now Image morph used for this. But it is not support scaling by resizing morph. ScetchMorph were removed from Pharo. Maybe something similar exists in system. 2011/3/26 Hilaire Fernandes <hilaire.fernandes(a)gmail.com> > A DrGeo user dragging and dropping a picture in DrGeo related me the > graphic can't be scaled from the halo scale icon. It was possible in the > past, what's wrong? > > DrGeo version was based on Pharo 1.2. > > Hilaire > > === > 2. Open Graphic in a Window - allows me to drop in the graphic, but it > does not scale/zoom with the geometry. > > > > -- > Education 0.2 -- http://blog.ofset.org/hilaire > > >

March 26, 2011

Re: [Pharo-project] COG VM Locale?

by Hilaire Fernandes

Thanks Igor! Hilaire Le 26/03/2011 14:15, Igor Stasenko a Ã©crit : > > On 26 March 2011 08:02, Hilaire Fernandes <hilaire.fernandes(a)gmail.com> wrote: >> Is it likely it'll be fixed? If so when? >> I need to know so I can move to plan B if necessary. >> >> http://code.google.com/p/cog/issues/detail?id=1 >> > > I will take a look at it. But i'm not sure if i can fix that. > >> Hilaire >> >> -- >> Education 0.2 -- http://blog.ofset.org/hilaire >> >> >> > > > -- Education 0.2 -- http://blog.ofset.org/hilaire

March 26, 2011

[Pharo-project] Scaling dropped graphic

by Hilaire Fernandes

A DrGeo user dragging and dropping a picture in DrGeo related me the graphic can't be scaled from the halo scale icon. It was possible in the past, what's wrong? DrGeo version was based on Pharo 1.2. Hilaire === 2. Open Graphic in a Window - allows me to drop in the graphic, but it does not scale/zoom with the geometry. -- Education 0.2 -- http://blog.ofset.org/hilaire

March 26, 2011

Re: [Pharo-project] Issue 2841 in pharo: Heap equality should be transitive

by pharo＠googlecode.com

Comment #2 on issue 2841 by nicolas....(a)gmail.com: Heap equality should be transitive http://code.google.com/p/pharo/issues/detail?id=2841 I also think it is a mistake to inherit from TSortable. TSortable implements a mergeSort algorithm. Heap has it's own idea on how it should sort, so this inheritance does not have much sense. Just using (Heap asArray sort) shall be enough.

March 26, 2011

Re: [Pharo-project] Issue 2841 in pharo: Heap equality should be transitive

by pharo＠googlecode.com

Comment #1 on issue 2841 by nicolas....(a)gmail.com: Heap equality should be transitive http://code.google.com/p/pharo/issues/detail?id=2841 If I download the code from Squeak trunk, it will break a lot of tests in HeapTest. (only due to the fact that I remove #species). I believe that assumptions made about Heap are not right. I wonder why the Heap should be considered as Sequenceable. Elements are partially sorted and the structure is more of a binary tree. Elements are not fully sorted, thus the order: - is not the order of the addition of elements, - is not independent of the order of addition. In fact, only the Heap head (first) is meaningfull. Thus testing some properties like #beginsWith: #endsWith: #at: #at:put: #reversed #copyFrom:to: etc... seems very fragile to me. Of course, that would mean moving the Heap one level up, directly under Collection, in order to cease undue inheritance of sequenceable API. What do you think ?

March 26, 2011

Re: [Pharo-project] COG VM Locale?

by Igor Stasenko

On 26 March 2011 08:02, Hilaire Fernandes <hilaire.fernandes(a)gmail.com> wrote: > Is it likely it'll be fixed? If so when? > I need to know so I can move to plan B if necessary. > > http://code.google.com/p/cog/issues/detail?id=1 > I will take a look at it. But i'm not sure if i can fix that. > Hilaire > > -- > Education 0.2 -- http://blog.ofset.org/hilaire > > > -- Best regards, Igor Stasenko AKA sig.

March 26, 2011

Re: [Pharo-project] who is using softSqueak and standard Squeak

by Marcus Denker

On Sat, Mar 26, 2011 at 1:20 PM, Helene Bilbo <thereluctantprogrammer(a)fastmail.fm> wrote: > > "StÃ©phane Ducasseâ wrote: >> >> just out of curiosity who is using SoftSqueak and Standard Squeak theme? >> I know that lukas like colored windows now may be specific new style with >> this behavior could be done? >> > Hi, > i use them and like them a lot. > I am always reminded of that Dilbert strip: http://dilbert.com/strips/comic/2002-09-23/ Marcus -- Marcus DenkerÂ --Â denker(a)acm.org http://www.marcusdenker.de

March 26, 2011

Re: [Pharo-project] who is using softSqueak and standard Squeak

by Lukas Renggli

Yeah, I kind of liked the colored windows, but nowadays I got used to the mac look. Lukas On 26 March 2011 09:40, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > Hi guys > > just out of curiosity who is using SoftSqueak and Standard Squeak theme? > I know that lukas like colored windows now may be specific new style with this behavior could be done? > > Stef > -- Lukas Renggli www.lukas-renggli.ch

March 26, 2011