October 2016 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] roundTo: strange behavior

by test

Hi Nicolas, regarding rounding Fractions: i use fractions if i want to get an exact result (eg for comparing the result with Float calculations). if #round: returns a Float all further calcs (with Fractions) will get contaminated, since the rest will become Floats too. Hence the "asScaledDecimal: numberOfWishedDecimal" seems better to me, but i wonder why these transformations at the end are necessary at all? just for the looks? i'd suppose every person, who knows how to use Fractions, also knows how to append a #asScaledDecimal: to a result by himself, should he want that. taking as an example financial calcs that first use 2 decimals. occasionaly the final result will be basepoints, often small ones like 0.003. with scaledDecimals the result would be (ok, look like) 0 since scaledDecimals also contaminate the calc. of course one could correct this simply with an #asScaledDecimal:3 at the end. nevertheless a first look at the zero result would surprise me for a tenth of a second. werner On 10/26/2016 09:58 AM, Nicolas Cellier wrote: > > > 2016-10-26 9:14 GMT+02:00 stepharo <stepharo(a)free.fr > <mailto:stepharo@free.fr>>: > > Hi nicolas > > So what is the solution? We can integrate fast a solution. > I would really like to see them fix in Pharo 60. > I'm writing a book for newbie and this is the third time I change > one chapter > so may be I should stop and throw away this chapter. > > > 1) for Fraction: > > round: numberOfWishedDecimal > v := 10 raisedTo: numberOfWishedDecimal. > ^ ((self * v) rounded / v) asFloat > > or just replace asFloat if you wish to remain exact: > > round: numberOfWishedDecimal > v := 10 raisedTo: numberOfWishedDecimal. > ^ ((self * v) rounded / v) asScaledDecimal: numberOfWishedDecimal > > 2) for Float, it is in 15471: > > round: numberOfWishedDecimal > | v maxNumberOfDecimals | > maxNumberOfDecimals := self class precision - 1 - (self exponent > max: self class emin). > maxNumberOfDecimals < numberOfWishedDecimal ifTrue: [^self]. > v := 10 raisedTo: numberOfWishedDecimal. > ^ ((self asFraction * v) rounded / v) asFloat > > or if Fraction already answers a Float: > > round: numberOfWishedDecimal > | maxNumberOfDecimals | > maxNumberOfDecimals := self class precision - 1 - (self exponent > max: self class emin). > maxNumberOfDecimals < numberOfWishedDecimal ifTrue: [^self]. > ^ self asFraction round: numberOfWishedDecimal > > It's slower than current implementation, but will round exactly to the > nearest Float. > It's possible to have faster implementation up to 22 decimals if you > provide a fused-multiply-accumulate primitive...

Oct. 26, 2016

Re: [Pharo-dev] How to try Bloc?

by Dimitris Chloupis

it looks like it did not like my custom build image , in a clean on install fines apart from a warning that taskit overwrites its own files, examples work fine. Bloc is really nice, well done people On Wed, Oct 26, 2016 at 12:20 PM Denis Kudriashov <dionisiydk(a)gmail.com> wrote: > > 2016-10-26 11:05 GMT+02:00 Dimitris Chloupis <kilon.alios(a)gmail.com>: > > No idea how you managed to install it, it gives me a missing ' error > > same setup, macos sierra, pharo 6 latest > ConfigurationOfBloc (Pharo/Bloc repo) loadDevelopment > > > I use this script: > > Gofer it > smalltalkhubUser: 'Pharo' project: 'Bloc'; > configuration; > loadDevelopment > > And examples are working now. > So question is how to open Bloc world? >

Oct. 26, 2016

Re: [Pharo-dev] How to try Bloc?

by Denis Kudriashov

2016-10-26 11:26 GMT+02:00 Denis Kudriashov <dionisiydk(a)gmail.com>: > > 2016-10-26 11:21 GMT+02:00 Tudor Girba <tudor(a)tudorgirba.com>: > >> Hi, >> >> You do not have to switch to a Bloc world anymore. The current solution >> opens a new SDL window every time you what to open something in Bloc from a >> Morphic window. >> > > Ok. > And now how to activate Halo menu to place with elements on screen? > And where to load Brick? (if it exists for latest Bloc?)

Oct. 26, 2016

Re: [Pharo-dev] How to try Bloc?

by Denis Kudriashov

2016-10-26 11:21 GMT+02:00 Tudor Girba <tudor(a)tudorgirba.com>: > Hi, > > You do not have to switch to a Bloc world anymore. The current solution > opens a new SDL window every time you what to open something in Bloc from a > Morphic window. > Ok. And now how to activate Halo menu to place with elements on screen?

Oct. 26, 2016

Re: [Pharo-dev] How to try Bloc?

by Tudor Girba

Hi, You do not have to switch to a Bloc world anymore. The current solution opens a new SDL window every time you what to open something in Bloc from a Morphic window. Cheers, Doru > On Oct 26, 2016, at 11:19 AM, Denis Kudriashov <dionisiydk(a)gmail.com> wrote: > > > 2016-10-26 11:05 GMT+02:00 Dimitris Chloupis <kilon.alios(a)gmail.com>: > No idea how you managed to install it, it gives me a missing ' error > > same setup, macos sierra, pharo 6 latest > ConfigurationOfBloc (Pharo/Bloc repo) loadDevelopment > > I use this script: > > Gofer it > smalltalkhubUser: 'Pharo' project: 'Bloc'; > configuration; > loadDevelopment > > And examples are working now. > So question is how to open Bloc world? -- www.tudorgirba.com www.feenk.com "In a world where everything is moving ever faster, one might have better chances to win by moving slower."

Oct. 26, 2016

Re: [Pharo-dev] How to try Bloc?

by Denis Kudriashov

2016-10-26 11:05 GMT+02:00 Dimitris Chloupis <kilon.alios(a)gmail.com>: > No idea how you managed to install it, it gives me a missing ' error > > same setup, macos sierra, pharo 6 latest > ConfigurationOfBloc (Pharo/Bloc repo) loadDevelopment > I use this script: Gofer it smalltalkhubUser: 'Pharo' project: 'Bloc'; configuration; loadDevelopment And examples are working now. So question is how to open Bloc world?

Oct. 26, 2016

[pharo-project/pharo-core]

by GitHub

Branch: refs/tags/60269 Home: https://github.com/pharo-project/pharo-core

Oct. 26, 2016

[pharo-project/pharo-core] 7a9bfe: 60269

by GitHub

Branch: refs/heads/6.0 Home: https://github.com/pharo-project/pharo-core Commit: 7a9bfe6726dd3b686f6cd3329f4afd61f2b704d2 https://github.com/pharo-project/pharo-core/commit/7a9bfe6726dd3b686f6cd332… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2016-10-26 (Wed, 26 Oct 2016) Changed paths: A Kernel-Tests.package/ProcessTest.class/instance/testing/testInjectingExceptionHandlerIntoProcessWithArg.st M Rubric.package/RubCharacterScanner.class/instance/scanning/basicScanCharactersFrom_to_in_rightX_stopConditions_kern_.st M SUnit-Core.package/TestExecutionEnvironment.class/instance/controlling/prepareForNewProcess_.st R ScriptLoader60.package/ScriptLoader.class/instance/pharo - scripts/script60268.st A ScriptLoader60.package/ScriptLoader.class/instance/pharo - scripts/script60269.st R ScriptLoader60.package/ScriptLoader.class/instance/pharo - updates/update60268.st A ScriptLoader60.package/ScriptLoader.class/instance/pharo - updates/update60269.st M ScriptLoader60.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st Log Message: ----------- 60269 18351 Inspector goes CPU bound displaying some large Text https://pharo.fogbugz.com/f/cases/18351 19224 TestExecutionEnvironment should use Process ondo to insert default error handler https://pharo.fogbugz.com/f/cases/19224 http://files.pharo.org/image/60/60269.zip

Oct. 26, 2016

Re: [Pharo-dev] How to try Bloc?

by Denis Kudriashov

2016-10-26 10:40 GMT+02:00 Denis Kudriashov <dionisiydk(a)gmail.com>: > > Do you have instructions how to run it? > And if you have one please put also instruction for Brick.

Oct. 26, 2016

Re: [Pharo-dev] [Bloc] Hierarchy of BiEvent

by Tudor Girba

Hi Denis, Thanks a lot for looking at this! I will let Glenn answer. Cheers, Doru > On Oct 26, 2016, at 11:02 AM, Denis Kudriashov <dionisiydk(a)gmail.com> wrote: > > Hi. > > I look at dev version of Bloc and have questions about events. > > There is duplicated hierarchy of OSEvent and BlEvent. For example for OSKeyDownEvent and OSMouseButtonPressEvent > there are same events from Block: BlKeyDownEvent and BlMouseDownEvent. > > Bloc of course add many new events like BlDragEvent and BlDblClickEvent. > But why we not manage all events equally? why we need this distinction? > > Also I was so much surprized about keyboard modifiers. In OS there is OSStateModifiers with smart boolean states like leftShiftPressed, leftAltPressed which are decoded from integer bits of raw SDL event. > > And in Bloc it is BlKeyModifiers which are created from OSStateModifier. And here is most amazing thing: BlKeyModifiers encode smart boolean flags about keys back into integer bits. So we have: > > SDL event int => OSStateModifiers booleans => BlKeyModifiers int > > Why it is done like this? > And currently BlKeyModifiers lost many states from OSStateModifiers. -- www.tudorgirba.com www.feenk.com "Yesterday is a fact. Tomorrow is a possibility. Today is a challenge."

Oct. 26, 2016