April 2011 - Pharo-users - lists.pharo.org

Re: [Pharo-users] creating a Rectangle

by Davorin Rusevljan

On Wed, Apr 6, 2011 at 11:09 PM, Igor Stasenko <siguctua(a)gmail.com> wrote: > Me neither. > I found it odd that some pieces of code relying that origin <= corner > (sorry i mistaken in previous mail) > > i meant that > > origin x <= corner x > origin y <= corner y > > and yes, there is some code that assumes it is always like that. > > So, yes. While in pure geometry two different corner points could > define a rectangle, no matter > in what order you put them, in pharo/squeak geometry it sometimes matters :) > > But of course you can try and figure out what is works and what not, > and fix it :) hmm.. I am not sure if this would improve situation or make situation even more ugly, but maybe #origin:corner: could figure out how to create rectangle from given parameters that satisfies: new_origin x <= new_corner x new_origin y <= new_corner y in other words, resulting rectangle may have different origin and corner than one supplied to #origin:corner: Davorin Rusevljan http://www.cloud208.com/

April 7, 2011

Re: [Pharo-users] creating a Rectangle

by Henrik Sperre Johansen

http://forum.world.st/vwnc-Rectangle-td1414824.html http://forum.world.st/Behavior-of-Rectangle-td2021104.html#a2021123 Personally, I like vertex:vertex: :) -- View this message in context: http://forum.world.st/creating-a-Rectangle-tp3430244p3432966.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

April 7, 2011

[ANN] Pharo Release 1.2.1

by Adrian Lienhard

The Pharo Project is proud to announce the release of Pharo 1.2.1, the third major release of this clean, innovative, open-source Smalltalk environment. Static URL for this ANN: http://www.pharo-project.org/pharo-download/release-1-2-1 French translation: http://code.google.com/p/pharo/wiki/Pharo12FrenchAnnouncement * Update #12345 On Tuesday, March 29th 2011, update #12345 was issued to Pharo's 1.2 development line, a line that started back in June 2010 and was frozen in January 2011. Next, Pharo's continuous integration machinery successfully started building various artifacts based on this 'Pharo Core 1.2', the most important one being 'Pharo 1.2' proper, the full featured development image. Pharo Core 1.2.1 passes 7.836 unit tests, Pharo 1.2.1 no less than 10.760. A large, international community of developers worked hard for several months to iron out all problems and to make Pharo compatible with various Smalltalk libraries and frameworks, among them Seaside 3.0.3 which passes its 1.599 tests. * Pharo Core Changes True to the Pharo philosophy, this release contains numerous small changes, refactorings, cleanups and bugfixes improving the overall quality. Important changes include: â Cleaned the Pluggable hierarchy â Added new undo framework â Cleaned Morph and PasteUpMorph â Added DummyUIManager, a UIManager for operating without a UI â Added NewTextMorph â Removed left overs from MVC: PopUpMenu, SelectionMenu and CustomMenu â Cleaned Utilities, Preferences and TheWorldMenu â Included SimpleMorphic preview â Removing empty classes â Added new TextEditor and SmalltalkEditor â Added new, clean and simple Glamorous, Glamorous Orange GUI Themes â Added new Pro GUI Theme â Added Cog compliant behavior â Added better blocks debugging â Better support for separating SmalltalkImage and SystemDictionary â Fixed package dependencies, providing a good platform for kernel images â Removed old JIT experiments â Migrated to MethodReferenceWithSource and friends â Added more pages under the Help system â Improved the number of commented classes â New Finder tool (replacing Messages Names and Method Finder) â New Recent Changes tool (replacing Recent Submissions) â Improved SpaceTally â Fixed pointer finders tools â Integrated SUnit 4 Started Continuous Integration: use Hudson/Jenkins to automatically build images, run tests, and compile VMs For the Core 1.2 Image development line, 693 issues were resolved. * Pharo Changes The full featured Pharo development image is built automatically by loading the Metacello configuration aptly called ConfigurationOfPharo. Important changes include: â Updated to latest Metacello and all configurations used to use symbolic versions â New tools: Metacello Configuration Browser, Memory Monitor, and Autotest â Updated versions of Shout, RoelTyper, OCompletion, OmniBrowser, AutomaticMethodCategorizer, RefactoringBrowsers, Nile, ProfStef â Added XML-Support, and more Help â Removed NewInspector For the Full Dev 1.2 Image development line, 57 issues were resolved. * Downloads: see http://www.pharo-project.org/pharo-download * Success Stories Pharo has a large user base spread all over the world. Hence there is a growing collection of success stories (www.pharo-project.org/about/success-stories) projects using Pharo that choose to go public with this. Recently, the following were added: DrGeo - an award winning interactive geometry application also used for teaching primary and secondary level students Issys Tracking - a workflow platform to support authorization procedures for the medical practice for a large social organization/health insurance in Argentina Inceptive's Custom ERP - an application for the event planning and resource management administration of a large cultural centre in Flanders __________________________ www.adrian-lienhard.ch twitter.com/adrianlienhard

April 7, 2011

Re: [Pharo-users] creating a Rectangle

by Igor Stasenko

On 6 April 2011 22:15, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > Thanks andre > Igor I'm sure that we can understand the implementation of area. > I asked andre to post it because I was concerned that this difference of behavior is a bit odd. > And I wanted to raise awareness and may be that we question ourselves. > Now I do not have that much preconceived point of view on it. > Me neither. I found it odd that some pieces of code relying that origin <= corner (sorry i mistaken in previous mail) i meant that origin x <= corner x origin y <= corner y and yes, there is some code that assumes it is always like that. So, yes. While in pure geometry two different corner points could define a rectangle, no matter in what order you put them, in pharo/squeak geometry it sometimes matters :) But of course you can try and figure out what is works and what not, and fix it :) > Stef > -- Best regards, Igor Stasenko AKA sig.

April 6, 2011

Re: [Pharo-users] creating a Rectangle

by StÃ©phane Ducasse

Thanks andre Igor I'm sure that we can understand the implementation of area. I asked andre to post it because I was concerned that this difference of behavior is a bit odd. And I wanted to raise awareness and may be that we question ourselves. Now I do not have that much preconceived point of view on it. Stef > Hello, > > VW: > (Rectangle origin: (0@0) corner: (10@10)) area. 100 > (Rectangle origin: (0@10) corner: (10@0)) area. -100 > (Rectangle origin: (10@10) corner: (0@0)) area. 100 > (Rectangle origin: (10@0) corner: (0@10)) area. -100 > > Pharo: > (Rectangle origin: (0@0) corner: (10@10)) area. 100 > (Rectangle origin: (0@10) corner: (10@0)) area. 0 > (Rectangle origin: (10@10) corner: (0@0)) area. 0 > (Rectangle origin: (10@0) corner: (0@10)) area. 0 > > On Wed, Apr 6, 2011 at 1:05 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > Give us the code! > In VW and Pharo side by side and their results > > Stef > > On Apr 6, 2011, at 10:31 AM, Andre Hora wrote: > > > Hello, > > > > To create a Rectangle in Pharo with the method Rectangle>>origin:corner:, you must provide the top left and the bottom right points. With others you have a Rectangle with area equals to zero. > > I just noticed that in VW it is possible create a Rectangle with other points (bottom right and top left, bottom left and top right, ...). > > So, shouldn't Pharo Rectangle allow the same? > > > > regards, > > > > -- > > Andre Hora > > > > > > > > -- > Andre Hora >

April 6, 2011

Re: [Pharo-users] [Metacello] Fwd: [Pharo-project] Metacello chapter

by Dale Henrichs

Excellent work! Dale On 04/06/2011 05:02 AM, Mariano Martinez Peck wrote: > > > ---------- Forwarded message ---------- > From: *StÃ©phane Ducasse* <stephane.ducasse(a)inria.fr > <mailto:stephane.ducasse@inria.fr>> > Date: Wed, Apr 6, 2011 at 9:58 AM > Subject: [Pharo-project] Metacello chapter > To: Pharo Development <Pharo-project(a)lists.gforge.inria.fr > <mailto:Pharo-project@lists.gforge.inria.fr>> > > > Hi guys > > here is a new version of the metacello chapter. > So we wrote it, rewrote it, rerewrote it. > Now if this is of interest for you you can read it. > > But if you don't it means that I'm losing my time and I should stop > writing and like > that you can cry that there is no doc about Pharo. > > > > > Stef > > > > > > -- > Mariano > http://marianopeck.wordpress.com >

April 6, 2011

Re: [Pharo-users] [Pharo-project] [ANN] Pharo 1.2.1. Setup for Win32 (including CogVM)

by Mariano Martinez Peck

Please, for the important ANN don't forget the pharo-users ;) On Wed, Apr 6, 2011 at 3:39 PM, Torsten Bergmann <astares(a)gmx.de> wrote: > Hi, > > now that Pharo 1.2.1. is available on the website > I've also updated the Win32 Setup. You can grab it here: > > > https://gforge.inria.fr/frs/download.php/28467/setup_pharo1.2.1-12345-relea… > > Compared to the one click (26MB) this download is only 13MB > in size and provides better windows integration. So if > you are on Windows you can use this > > Whats new: > ========== > - Pharo 1.2.1.#12345 is included > - Cog VM is included (CogVM VM.r2378) with a custom CogVM/Pharo icon > > Maybe Adrian is able to change: > http://www.pharo-project.org/pharo-download > to point to the new executable. > > Thx > T. > -- > GMX DSL Doppel-Flat ab 19,99 Euro/mtl.! Jetzt mit > gratis Handy-Flat! http://portal.gmx.net/de/go/dsl > > -- Mariano http://marianopeck.wordpress.com

April 6, 2011

Re: [Pharo-users] Fwd: [Pharo-project] Metacello chapter

by Johan Fabry

Cool, I was just looking for that chapter. Thanks, Stef! On 06 Apr 2011, at 08:02, Mariano Martinez Peck wrote: > > > ---------- Forwarded message ---------- > From: StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > Date: Wed, Apr 6, 2011 at 9:58 AM > Subject: [Pharo-project] Metacello chapter > To: Pharo Development <Pharo-project(a)lists.gforge.inria.fr> > > > Hi guys > > here is a new version of the metacello chapter. > So we wrote it, rewrote it, rerewrote it. > Now if this is of interest for you you can read it. > > But if you don't it means that I'm losing my time and I should stop writing and like > that you can cry that there is no doc about Pharo. > > > > > Stef > > > > > > -- > Mariano > http://marianopeck.wordpress.com > > <Metacello.pdf> -- Johan Fabry jfabry(a)dcc.uchile.cl - http://dcc.uchile.cl/~jfabry PLEIAD Lab - Computer Science Department (DCC) - University of Chile

April 6, 2011

Re: [Pharo-users] [Pharo-project] Metacello chapter

by Davorin Rusevljan

> On Wed, Apr 6, 2011 at 9:58 AM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > wrote: >> >> Hi guys >> >> here is a new version of the metacello chapter. >> So we wrote it, rewrote it, rerewrote it. >> Now if this is of interest for you you can read it. >> >> But if you don't it means that I'm losing my time and I should stop >> writing and like >> that you can cry that there is no doc about Pharo. Stef thanks! It has cleared quite a few things in my head. davorin rusevljan http://www.cloud208.com/

April 6, 2011

Re: [Pharo-users] creating a Rectangle

by Igor Stasenko

area "Answer the receiver's area, the product of width and height." | w | (w := self width) <= 0 ifTrue: [ ^ 0 ]. ^ w * self height max: 0 what i found that rectangles don't like if corner point having coordinates (either x or y) which is below the origin. many places in code (and especially in morphic) assuming that for any rectangle: rect origin >= rect corner. On 6 April 2011 13:51, Andre Hora <andrehoraa(a)gmail.com> wrote: > Hello, > > VW: > (Rectangle origin: (0@0) corner: (10@10)) area. 100 > (Rectangle origin: (0@10) corner: (10@0)) area. -100 > (Rectangle origin: (10@10) corner: (0@0)) area. 100 > (Rectangle origin: (10@0) corner: (0@10)) area. -100 > > Pharo: > (Rectangle origin: (0@0) corner: (10@10)) area. 100 > (Rectangle origin: (0@10) corner: (10@0)) area. 0 > (Rectangle origin: (10@10) corner: (0@0)) area. 0 > (Rectangle origin: (10@0) corner: (0@10)) area. 0 > > On Wed, Apr 6, 2011 at 1:05 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > wrote: >> >> Give us the code! >> In VW and Pharo side by side and their results >> >> Stef >> >> On Apr 6, 2011, at 10:31 AM, Andre Hora wrote: >> >> > Hello, >> > >> > To create a Rectangle in Pharo with the method >> > Rectangle>>origin:corner:, you must provide the top left and the bottom >> > right points. With others you have a Rectangle with area equals to zero. >> > I just noticed that in VW it is possible create a Rectangle with other >> > points (bottom right and top left, bottom left and top right, ...). >> > So, shouldn't Pharo Rectangle allow the same? >> > >> > regards, >> > >> > -- >> > Andre Hora >> > >> >> > > > > -- > Andre Hora > > -- Best regards, Igor Stasenko AKA sig.

April 6, 2011