- Pharo-dev - lists.pharo.org

Re: [Pharo-dev] float printing glitch?

by StÃ©phane Ducasse

On 25 Dec 2013, at 23:56, Nicolas Cellier <nicolas.cellier.aka.nice(a)gmail.com> wrote: > > 2013/12/25 Nicolas Cellier <nicolas.cellier.aka.nice(a)gmail.com> > > 2013/12/25 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > thanks nicolas. > I will give a try. > > > I just made a quick pass in Squeak, analyzed senders of roundTo: and modified a few whose sole intention was printing. > This need to be redone in Pharo. > > Ah, but Squeak has Number>>printOn:maxDecimalPlaces: and printShowingMaxDecimalPlaces: and Stream>>print:maxDecimalPlaces: I somehow understand why and I think that this is ok to add them to pharo. > > It would be required to add those messages first. > > > On 24 Dec 2013, at 18:15, Nicolas Cellier <nicolas.cellier.aka.nice(a)gmail.com> wrote: > >> Yes, you should change the tickPrintBlock because it probably incorrectly use (aFloat roundTo: 0.1) printString. >> There is no guaranty that this return the nearest Float to the aimed decimal fraction. >> Since this is not the nearest Float, you have additional digits displayed. >> The print block should use a selector like printShowingDecimalPlaces: (Squeak) or something equivalent in Pharo (can't remember if the selectors are 100% compatible). >> >> For completeness, do test these expressions: >> (0 to: 10) collect: [:i | (i/10) asFloat]. >> versus >> (0 to: 10) collect: [:i | i*0.1]. >> versus >> (0 to: 10) collect: [:i | (i/10) roundTo: 0.1]. >> >> Only the first one is correct. Trying to roundTo: 0.1 spoils thing because 0.1 is not exactly 1/10 and thus introduce small errors... >> >> >> 2013/12/24 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> >> Hi (nicolas :)) >> >> I was fixing the sound package and the EnvelopeEditorMorph shows a strange glitch >> >> EnvelopeEditorMorph openOn: (FMSound brass1) copy title: 'brass1' >> >> See ^^^^^^^^^^^^^^^^ below >> >> I have the impression that this related to float printString. Any idea how to fix it? >> >> >> >> >> >> buildLabels >> | scale x1 y1 y2 captionMorph loopStart offset | >> majorTickLength * minorTickLength < 0 >> ifTrue: [ minorTickLength := 0 - minorTickLength ]. >> self removeAllMorphs. >> caption ifNotNil: >> [ captionMorph := StringMorph contents: caption. >> offset := captionAbove >> ifTrue: [majorTickLength abs + captionMorph height + 7] >> ifFalse: [2]. >> captionMorph >> align: captionMorph bounds bottomCenter >> with: self bounds bottomCenter - (0 @ offset). >> self addMorph: captionMorph]. >> tickPrintBlock ifNotNil: >> ["Calculate the offset for the labels, depending on whether or not >> 1) there's a caption >> below, 2) the labels are above or below the ticks, and 3) the >> ticks go up or down" >> offset := labelsAbove >> ifTrue: [majorTickLength abs + minorTickLength abs + 2] >> ifFalse: [2]. >> caption >> ifNotNil: [captionAbove ifFalse: [offset := offset + captionMorph height + 2]]. >> scale := (self innerBounds width - 1) / (stop - start) asFloat. >> x1 := self innerBounds left. >> y1 := self innerBounds bottom. >> y2 := y1 - offset. >> "Start loop on multiple of majorTick" >> loopStart := (start / majorTick) ceiling * majorTick. >> loopStart to: stop >> by: majorTick >> do: >> [ :v | | x tickMorph | >> x := x1 + (scale * (v - start)). >> tickMorph := StringMorph contents: (tickPrintBlock value: v). >> ^^^^^^^^^^^^^^^^ printString? >> >> tickMorph align: tickMorph bounds bottomCenter with: x @ y2. >> tickMorph left < self left >> ifTrue: [ tickMorph position: self left @ tickMorph top ]. >> tickMorph right > self right >> ifTrue: [ tickMorph position: (self right - tickMorph width) @ tickMorph top]. >> self addMorph: tickMorph ]] >> > > >

Dec. 26, 2013

Re: [Pharo-dev] float printing glitch?

by StÃ©phane Ducasse

On 25 Dec 2013, at 23:39, Nicolas Cellier <nicolas.cellier.aka.nice(a)gmail.com> wrote: > > 2013/12/25 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > thanks nicolas. > I will give a try. > > > I just made a quick pass in Squeak, analyzed senders of roundTo: and modified a few whose sole intention was printing. > This need to be redone in Pharo. If you do it and publish the code we will happily integrate that in Pharo because so far we do not have much expertise in this domain. Stef > > On 24 Dec 2013, at 18:15, Nicolas Cellier <nicolas.cellier.aka.nice(a)gmail.com> wrote: > >> Yes, you should change the tickPrintBlock because it probably incorrectly use (aFloat roundTo: 0.1) printString. >> There is no guaranty that this return the nearest Float to the aimed decimal fraction. >> Since this is not the nearest Float, you have additional digits displayed. >> The print block should use a selector like printShowingDecimalPlaces: (Squeak) or something equivalent in Pharo (can't remember if the selectors are 100% compatible). >> >> For completeness, do test these expressions: >> (0 to: 10) collect: [:i | (i/10) asFloat]. >> versus >> (0 to: 10) collect: [:i | i*0.1]. >> versus >> (0 to: 10) collect: [:i | (i/10) roundTo: 0.1]. >> >> Only the first one is correct. Trying to roundTo: 0.1 spoils thing because 0.1 is not exactly 1/10 and thus introduce small errors... >> >> >> 2013/12/24 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> >> Hi (nicolas :)) >> >> I was fixing the sound package and the EnvelopeEditorMorph shows a strange glitch >> >> EnvelopeEditorMorph openOn: (FMSound brass1) copy title: 'brass1' >> >> See ^^^^^^^^^^^^^^^^ below >> >> I have the impression that this related to float printString. Any idea how to fix it? >> >> >> >> >> >> buildLabels >> | scale x1 y1 y2 captionMorph loopStart offset | >> majorTickLength * minorTickLength < 0 >> ifTrue: [ minorTickLength := 0 - minorTickLength ]. >> self removeAllMorphs. >> caption ifNotNil: >> [ captionMorph := StringMorph contents: caption. >> offset := captionAbove >> ifTrue: [majorTickLength abs + captionMorph height + 7] >> ifFalse: [2]. >> captionMorph >> align: captionMorph bounds bottomCenter >> with: self bounds bottomCenter - (0 @ offset). >> self addMorph: captionMorph]. >> tickPrintBlock ifNotNil: >> ["Calculate the offset for the labels, depending on whether or not >> 1) there's a caption >> below, 2) the labels are above or below the ticks, and 3) the >> ticks go up or down" >> offset := labelsAbove >> ifTrue: [majorTickLength abs + minorTickLength abs + 2] >> ifFalse: [2]. >> caption >> ifNotNil: [captionAbove ifFalse: [offset := offset + captionMorph height + 2]]. >> scale := (self innerBounds width - 1) / (stop - start) asFloat. >> x1 := self innerBounds left. >> y1 := self innerBounds bottom. >> y2 := y1 - offset. >> "Start loop on multiple of majorTick" >> loopStart := (start / majorTick) ceiling * majorTick. >> loopStart to: stop >> by: majorTick >> do: >> [ :v | | x tickMorph | >> x := x1 + (scale * (v - start)). >> tickMorph := StringMorph contents: (tickPrintBlock value: v). >> ^^^^^^^^^^^^^^^^ printString? >> >> tickMorph align: tickMorph bounds bottomCenter with: x @ y2. >> tickMorph left < self left >> ifTrue: [ tickMorph position: self left @ tickMorph top ]. >> tickMorph right > self right >> ifTrue: [ tickMorph position: (self right - tickMorph width) @ tickMorph top]. >> self addMorph: tickMorph ]] >> > >

Dec. 26, 2013

Re: [Pharo-dev] Transparent colors with NBOpenGL?

by StÃ©phane Ducasse

This sounds really exciting :) > That sounds very interesting. I dream of a virtual world environment such as Second Life, highly dynamic and completely open source. Croquet was going in that direction and this is good to improve the infrastructure of Pharo in that direction. Better interaction with C and C++ is definitively a big plus. > But currently I would like to do a simple video game, with toon like graphic, using bullet for physics. I think that making an actual game development pipeline would be very interesting. Yes :) Now let us start small and focus on key elements. Clement was suggesting that we could even launch a kick starter :) > I would not create a full level editor, modeling software because it takes too much time, and there is Blender which is open source and very complete. > > Some tasks required are as follow: > - An easy way to make bindings for C++ libraries. For this I am going to start extending SWIG(http://www.swig.org/) so it can generate bindings for Pharo NativeBoost. > - Bindings for the Bullet physics engine(http://bulletphysics.org/wordpress/). With the extensions for swig, this is trivial. Did you see that esteban and JB did a binding to another physic engine (forgot his name). > - An importer for COLLADA. COLLADA is a XML based asset exchange format, with a wide support in different 3d model editors, such as Blender. We could turn that into a student project. > - For Linux, a new VM display module is required. The current that uses just X11 suffers of severe tearing and flickering. I would like to make a display module for the VM that uses SDL2, which is a cross platform library that supports hardware accelerated graphics, or cross platform creation of an OpenGL context. Iâm sure that igor wants to have a look at that. > - I think that garbage collection would require some determinism/time constraint or write some guidelines to avoid triggering the gargbage collector. When I'm testing the particles, I can see some noticeable pause, that I attribute to the garbage collector. Eliot Miranda is working a new GC and it is much much much better. No global GC needed anymore. So for Pharo 40 we will get a lot of improvements from this part. We are really excited because it opens a lot of space > > Greetings, > Ronie Salgado > > > 2013/12/25 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > Ronie > > I was talking about 3D with Igor (because Igor came to Smalltalk because he wanted to use it as a game engine and built rendering > engine in Pascal long long time ago :). > So I was brainstorming to see what you could do. > > the last time alex show roassal 3D we were thinking that it would be good to build a kickstarter show case on something > sexy (maybe bridging a physical model to 3D)â¦. > > Now what would like to build with NBOpenGL? What are your dreams and how > could we slice them into tasks that could be reached in a limited amount of time. > > Stef >

Dec. 26, 2013

Re: [Pharo-dev] [OT]: Looking for Bill Schwab

by btc＠openinworld.com

Dec. 26, 2013

Re: [Pharo-dev] Fogbugz new milestones

by Marcus Denker

On 26 Dec 2013, at 15:37, Ben Coman <btc(a)openInWorld.com> wrote: > With the code freeze for Pharo 3.0 and potentially the milestone on some more invasive Fogbugz cases being pushed back, probably its better to set most of those to Pharo 4.0 or 3.1 rather than just 'later' and losing them among the historical ones carried forward from the old issue tracker (even though those also need to be dealt with). > > So could the next set of milestones following Pharo 3.0 be defined on Fogbugz? > yes! but not âa setâ, but to keep it simple one for Pharo4. Marucus

Dec. 26, 2013

[pharo-project/pharo-core] bb8477: 30662

by GitHub

Branch: refs/heads/3.0 Home: https://github.com/pharo-project/pharo-core Commit: bb84775086e4ba25cbb798ea59d64c818f03349c https://github.com/pharo-project/pharo-core/commit/bb84775086e4ba25cbb798ea… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2013-12-26 (Thu, 26 Dec 2013) Changed paths: M Nautilus.package/AbstractNautilusUI.class/instance/source code area/addComment_notifying_.st A Nautilus.package/PackageTreeNautilusUI.class/instance/private/runPackagesTestsNotifying_.st R Nautilus.package/extension/ThemeIcons/instance/blankIconContents.st R Nautilus.package/extension/ThemeIcons/instance/emptyIcon.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/backIcon.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/bottomIcon.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/calendarIcon.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/changeSorterIcon.st A Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/emptyIcon.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/smallDebugIcon.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/smallForwardIconGray.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/smallFullscreenIcon.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/smallHelpIcon.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/smallHomeIcon.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/smallInfoIcon.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/smallInspectItIcon.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/smallItalicIcon.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/smallJumpIcon.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/smallJumpIconGray.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - 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icons/warningIcon.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/windowCloseForm.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/windowIcon.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/windowMaximizeForm.st M Polymorph-Widgets.package/ThemeIcons.class/instance/accessing - icons/workspaceIcon.st A Polymorph-Widgets.package/ThemeIcons.class/instance/private - contents/blankIconContents.st A ScriptLoader30.package/ScriptLoader.class/instance/pharo - scripts/script315.st A ScriptLoader30.package/ScriptLoader.class/instance/pharo - updates/update30662.st M ScriptLoader30.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st M Spec-Layout.package/SpecColumnLayout.class/definition.st A Spec-Layout.package/SpecColumnLayout.class/instance/commands/addSplitter.st R Spec-Layout.package/SpecColumnLayout.class/instance/converting/addSplitter.st M Spec-Layout.package/SpecColumnLayout.class/instance/converting/privateAsArray.st A Spec-Layout.package/SpecColumnLayout.class/instance/private/autoFractionComputation.st A Spec-Layout.package/SpecColumnLayout.class/instance/private/countNumberOfProportionals.st A Spec-Layout.package/SpecColumnLayout.class/instance/private/manualFractionComputation.st A Spec-Layout.package/SpecColumnLayout.class/instance/private/resetArrayComputation.st A Spec-Layout.package/SpecColumnLayout.class/instance/private/setWidgetLayoutWithNoOffset_at_delta_.st A Spec-Layout.package/SpecColumnLayout.class/instance/private/setWidgetLayoutWithOffset_at_.st A Spec-Layout.package/SpecColumnLayout.class/instance/private/shiftLastWidgets.st M Spec-Layout.package/SpecLayout.class/definition.st M Spec-Layout.package/SpecLayout.class/instance/converting/privateAsArray.st A Spec-Layout.package/SpecLayout.class/instance/converting/resetArrayComputation.st A Spec-Layout.package/SpecLayout.class/instance/private/computeNotSplitterWidget_.st A Spec-Layout.package/SpecLayout.class/instance/private/computeNotSplitterWidgets.st A Spec-Layout.package/SpecLayout.class/instance/private/computeSplitters.st A Spec-Layout.package/SpecLayout.class/instance/private/setBottomOffset_for_borderWidth_.st A Spec-Layout.package/SpecLayout.class/instance/private/setLeftOffset_for_borderWidth_.st A Spec-Layout.package/SpecLayout.class/instance/private/setOffsetsFor_top_left_bottom_right_borderWidth_.st A Spec-Layout.package/SpecLayout.class/instance/private/setRightOffset_for_borderWidth_.st A Spec-Layout.package/SpecLayout.class/instance/private/setTopOffset_for_borderWidth_.st M Spec-Layout.package/SpecRowLayout.class/definition.st M Spec-Layout.package/SpecRowLayout.class/instance/converting/privateAsArray.st A Spec-Layout.package/SpecRowLayout.class/instance/private/autoFractionComputation.st A Spec-Layout.package/SpecRowLayout.class/instance/private/countNumberOfProportionals.st A Spec-Layout.package/SpecRowLayout.class/instance/private/manualFractionComputation.st A Spec-Layout.package/SpecRowLayout.class/instance/private/resetArrayComputation.st A Spec-Layout.package/SpecRowLayout.class/instance/private/setWidgetLayoutWithNoOffset_at_delta_.st A Spec-Layout.package/SpecRowLayout.class/instance/private/setWidgetLayoutWithOffset_at_.st A Spec-Layout.package/SpecRowLayout.class/instance/private/shiftLastWidgets.st Log Message: ----------- 30662 12489 Hidden dependencies between Nautilus and ThemeIcons https://pharo.fogbugz.com/f/cases/12489 12507 run tests from package throws DNU https://pharo.fogbugz.com/f/cases/12507 12485 Splits and refactorings in the SpecLayout https://pharo.fogbugz.com/f/cases/12485 12509 Nautilus does not use changeStamp on newly modified class comment https://pharo.fogbugz.com/f/cases/12509 http://files.pharo.org/image/30/30662.zip

Dec. 26, 2013

[pharo-project/pharo-core]

by GitHub

Branch: refs/tags/30662 Home: https://github.com/pharo-project/pharo-core

Dec. 26, 2013

Re: [Pharo-dev] [OT]: Looking for Bill Schwab

by Esteban A. Maringolo

2013/12/26 Sean P. DeNigris <sean(a)clipperadams.com>: > I sent a message through Nabble to the address at anest.ufl.edu, which was > returned "The e-mail address you entered couldn't be found. Please check the > recipient's e-mail address and try to resend the message. If the problem > continues, please contact your helpdesk." You're not the first one looking for him. In the Dolphin Smalltalk newsgroup they were looking for him too a year ago or so. I don't know if they ever found him. Good luck. He is a valuable Smalltalker. Regards, Esteban.

Dec. 26, 2013

[OT]: Looking for Bill Schwab

by Sean P. DeNigris

I sent a message through Nabble to the address at anest.ufl.edu, which was returned "The e-mail address you entered couldn't be found. Please check the recipient's e-mail address and try to resend the message. If the problem continues, please contact your helpdesk." ----- Cheers, Sean -- View this message in context: http://forum.world.st/OT-Looking-for-Bill-Schwab-tp4732479.html Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

Dec. 26, 2013

Re: [Pharo-dev] Easy issue to fix: 12063

by btc＠openinworld.com

Dec. 26, 2013