December 2017 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] Bloc Feedback

by Sean P. DeNigris

Aliaksei Syrel wrote > should be "BlPostAction" - a valuable that is guaranteed to be evaluated > in the > beginning of every frame before anything else. That name and definition do not seem to fit to me. "Post" in what sense? Why is "action" more accurate than "animation"? Aliaksei Syrel wrote > and stops itself if element is no more in the scene graph *by checking > that explicitly before > doing every animation step*. I'd be interested in the performance cost of this approach, especially for an example like Squeak's infection modelling morphâ¦ ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html

Dec. 2, 2017

Re: [Pharo-dev] Bloc Feedback

by Aliaksei Syrel

I forgot to mention that "BlPostAction" is a one time action - it disappears once done :) Cheers, Alex On 2 December 2017 at 17:26, Aliaksei Syrel <alex.syrel(a)gmail.com> wrote: > Hi, > > An object that is called now "Animation" in Bloc is not necessarily bound > to the visual element. > The correct name for the root class of "BlBaseAnimation" should be > "BlPostAction" - a valuable that is guaranteed to be evaluated in the > beginning of every frame before anything else. We have already a deferred > action but they are only evaluated when there is enough time between frames. > "BlBaseAnimation" should be renamed to something line "BlElementAnimation" > that is guaranteed to be bound to a visual element and stops itself if > element is no more in the scene graph *by checking that explicitly before > doing every animation step*. > > Cheers, > Alex > > On 2 December 2017 at 16:35, Sean P. DeNigris <sean(a)clipperadams.com> > wrote: > >> Aliaksei Syrel wrote >> > ... >> > Also, what is the lifetime of an infinite animation? >> > ... >> > Do you have any particular use-case for animations? >> >> I hacked together a simplified stepping animation (may not be in the right >> place in the class hierarchy). Here's a pull request to discuss >> https://github.com/pharo-graphics/Bloc/pull/37 >> >> >> >> ----- >> Cheers, >> Sean >> -- >> Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html >> >> >

Dec. 2, 2017

Re: [Pharo-dev] MCRepositoryError on System > Software update

by Peter UhnÃ¡k

As far as I know it doesn't work and hasn't worked for a long time. (Which makes me wonder why it is still there.) Peter On Sat, Dec 2, 2017 at 5:25 PM, Bernhard Pieber <bernhard(a)pieber.com> wrote: > I assume that System > Software update can be used to update an Image from > Pharo 6.0 to Pharo 6.1, correct? > > When I tried to update a Pharo 6.0 image (Latest update: #60499) using > System > Software update I ran into the following error: > Could not load BaselineOfFileTree-ThierryGoubier.32.mcz: > ZnHttpUnsuccessful: 404 Not Found > > I tried it twice to make sure it was not some intermittent network error. > > Any help would be appreciated. > > Bernhard >

Dec. 2, 2017

Re: [Pharo-dev] Bloc Feedback

by Aliaksei Syrel

Hi, An object that is called now "Animation" in Bloc is not necessarily bound to the visual element. The correct name for the root class of "BlBaseAnimation" should be "BlPostAction" - a valuable that is guaranteed to be evaluated in the beginning of every frame before anything else. We have already a deferred action but they are only evaluated when there is enough time between frames. "BlBaseAnimation" should be renamed to something line "BlElementAnimation" that is guaranteed to be bound to a visual element and stops itself if element is no more in the scene graph *by checking that explicitly before doing every animation step*. Cheers, Alex On 2 December 2017 at 16:35, Sean P. DeNigris <sean(a)clipperadams.com> wrote: > Aliaksei Syrel wrote > > ... > > Also, what is the lifetime of an infinite animation? > > ... > > Do you have any particular use-case for animations? > > I hacked together a simplified stepping animation (may not be in the right > place in the class hierarchy). Here's a pull request to discuss > https://github.com/pharo-graphics/Bloc/pull/37 > > > > ----- > Cheers, > Sean > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html > >

Dec. 2, 2017

MCRepositoryError on System > Software update

by Bernhard Pieber

I assume that System > Software update can be used to update an Image from Pharo 6.0 to Pharo 6.1, correct? When I tried to update a Pharo 6.0 image (Latest update: #60499) using System > Software update I ran into the following error: Could not load BaselineOfFileTree-ThierryGoubier.32.mcz: ZnHttpUnsuccessful: 404 Not Found I tried it twice to make sure it was not some intermittent network error. Any help would be appreciated. Bernhard

Dec. 2, 2017

Re: [Pharo-dev] Bloc Feedback

by Sean P. DeNigris

Aliaksei Syrel wrote > ... > Also, what is the lifetime of an infinite animation? > ... > Do you have any particular use-case for animations? I hacked together a simplified stepping animation (may not be in the right place in the class hierarchy). Here's a pull request to discuss https://github.com/pharo-graphics/Bloc/pull/37 ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html

Dec. 2, 2017

Re: [Pharo-dev] Bloc Feedback

by Tudor Girba

Hi Sean, The way I understand it is that the animation has to be stopped for the animation to be removed. If you make it to never stop, it will never be removed. Cheers, Doru > On Dec 2, 2017, at 3:37 PM, Sean P. DeNigris <sean(a)clipperadams.com> wrote: > > Aliaksei Syrel wrote >> Yes, after animation is stopped it is removed from the animation manager >> and if referenced weakly should be garbage collected. >> Otherwise it is a bug :) > > I changed the clock example code from `loop: 1` to `beInfinite` and opened a > bunch of clocks. > > Now, in a fresh playground: > <http://forum.world.st/file/t128965/Screenshot_2017-12-02_09.jpeg> > > > > ----- > Cheers, > Sean > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html > -- www.tudorgirba.com www.feenk.com "Being happy is a matter of choice."

Dec. 2, 2017

Re: [Pharo-dev] Bloc Feedback

by Sean P. DeNigris

Aliaksei Syrel wrote > Yes, after animation is stopped it is removed from the animation manager > and if referenced weakly should be garbage collected. > Otherwise it is a bug :) I changed the clock example code from `loop: 1` to `beInfinite` and opened a bunch of clocks. Now, in a fresh playground: <http://forum.world.st/file/t128965/Screenshot_2017-12-02_09.jpeg> ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html

Dec. 2, 2017

Pharo Launcher endless loop opening debuggers in Pharo 6.1

by Bernhard Pieber

I ran into an annoying problem using the latest Pharo 6.1 (stable) from Pharo Launcher. I am on macOS Sierra Version 10.12.6. Steps to reproduce: 1. Open Pharo Launcher 2. Create new Pharo 6.1 (stable) image from the official distributions, named Test 3. Launch the Test image 4. Open a File Browser 5. Right click on the selected Test directory in the left file tree pane. 6. Debuggers start opening on KeyNotFound: key #arg4 not found in Dictionary 7. Image hangs Interestingly the problem does not happen if I create the image using âcurl get.pharo.org | bashâ and start it with â./pharo-ui Pharo.imageâ although About Pharo shows the same information: Pharo 6.0 Latest update: #60523 Can someone please confirm the bug? Bernhard

Dec. 2, 2017

Re: [Pharo-dev] Bloc Feedback

by Aliaksei Syrel

Hi Sean, Yes, after animation is stopped it is removed from the animation manager and if referenced weakly should be garbage collected. Otherwise it is a bug :) Cheers, Alex On 2 December 2017 at 04:48, Sean P. DeNigris <sean(a)clipperadams.com> wrote: > Aliaksei Syrel wrote > >> So one would change the `loop: 1` in your example to `beInfinite`? > > ... > > Also, what is the lifetime of an infinite animation? > > > > > > It can only be stopped by sending #stop to it. > > Is holding it weakly from the element and sending #stop enough for the > animation to be garbage collected? > > > > ----- > Cheers, > Sean > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html > >

Dec. 2, 2017