Self-interest March 2018

self-interest@lists.selflanguage.org

4 participants
4 discussions

Re: [self-interest] Small updates
by David Harris 07 Mar '18

07 Mar '18

Russell - That worked, just as described! Thanks David On Wed, Mar 7, 2018 at 3:15 AM, Russell Allen mail(a)russell-allen.com [self-interest] <self-interest(a)yahoogroups.com> wrote: > > > Hi David, > It seems to be looking for the VM in the right place so I’m not sure why > it can’t find it. > > Can you please download the latest VM from > http://files.selflanguage.org/releases/2017.1/Self-2017.1.dmg > open the .dmg and drag the Self Control.app to the Applications folder? > Then open it, and go to the Self Control menu and chose “Install VM at > /usr/local/bin/Self” > Then do ‘rm /usr/bin/Self’ > (We had to move to /usr/local/bin as the latest MacOS versions don’t allow > anyone even root to write to /usr/bin) > Then try the build again - hopefully it will work. > > Cheers Russell > > > On 7 Mar 2018, at 12:24 pm, David Harris dpharris(a)telus.net > [self-interest] <self-interest(a)yahoogroups.com> wrote: > > > Thanks Russell! > > I get an error: > " > echo "desktop open. saveAs: 'dev.snap'. quitNoSave " | Self -f > worldBuilder.self -o morphic > /usr/bin/Self: line 2: /Applications/Self Control.app/Contents/Resources/Self.app/Contents/MacOS/Self: > No such file or directory > " > > It appears that that should perhaps be '/Applications/Self > Control.app/Contents/Resources/Self.app/Contents/MacOS/Self *Control*', > is in that directory? > > Thanks again, > David > > > On Tue, Mar 6, 2018 at 4:37 PM, Russell Allen mail(a)russell-allen.com [ > self-interest] <self-interest(a)yahoogroups.com> wrote: > >> Hi everyone, >> >> I thought since the mailing list has been a bit quiet I might do some >> updates, partly to show activity and partly to prompt myself to do stuff :) >> >> Activity happens on the 'dev' branch on github.com/russellallen/self and >> since the 2017.1 release I have: >> >> * Made Morphic more responsive at cost of some CPU usage. The morphic >> framerate is determined by the full cycle of getting events, changing >> morphs and redrawing the necessary parts of the screen. What I did was >> tweak the delays so that >> - if events are coming in, the cycle goes as fast as it can >> - if events are not coming in, it goes up to 60fps if it can but no faster >> but in each case, it won't take more than 50% of the CPU. >> >> At least on my machines the desktop animations seem smoother and the >> system feels more responsive.. >> >> * Nicer looking sliderMorph, so scroll bars on text fields look more like >> the macOS rounded rect rather than a thin black line >> >> * New copyTransparent method on morphs allowing simplification of >> intialisation code in a bunch of places >> >> I also have accumulated some bug fixes: >> >> * Fix to bug in damage logging causing dragged morphs leaving behind stuff >> * Fix to bug preventing shadow being shown when morphs grabbed by hand on >> mac >> * Fix capitalizeAll (Issue #124) >> >> Assuming you have Self in your command line path somewhere, you can try >> out by: >> >> > git clone https://github.com/russellallen/self.git >> > cd self && git checkout dev && cd objects >> > echo "desktop open. saveAs: 'dev.snap'. quitNoSave " | Self -f >> worldBuilder.self -o morphic >> >> You will then have a dev.snap snapshot. >> >> Have fun, Russell >> >> >> >> >> ------------------------------------ >> Posted by: Russell Allen <mail(a)russell-allen.com> >> ------------------------------------ >> >> >> ------------------------------------ >> >> Yahoo Groups Links >> >> >> >> > > > > > >

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evolution of my programming style
by Jecel Assumpcao Jr. 07 Mar '18

07 Mar '18

David Ungar mentioned a language called StripeTalk that I had not heard of before. It didn't have any kind of inheritance, so every object was completely separate from all others.You can add one or more "stripes" to an object, sort of like tags in a blog entry. When you cloned an object, it would start out with the same set of stripes as the original. But you could then add or remove stripes to one or the other object so each would evolve along a separate path. When making any programming changes you could select a set of stripes and all objects which included that set would be affected by the change. This reminded me how my oen programming style in Self evolved over the years. My first non trivial application was a CMOS simulator in Self 1.0, so I was programming in vi instead of a GUI. My first step was to add a pair of objects to globals like traits _DefineSlots: { | zack = ( | cloning* = traits clonable | ) | ) prototypes _DefineSlots: ( | zack = ( | parent* = traits zack | ) | ) and then I would fill in the classlike functionality in the first object and the instancelike in the second. Even after we got the GUI in Self 4 I stayed with this Smalltalk programming style for a while. But in the GUI it was possible to visually drag an arrow to change the contents of a slot (even a constant slot) to point to some object on the screen even if that object didn't have a proper name as a result of not being inside globals or its parents. In security we have the principal of least authority (POLA) where if a worker needs to get into rooms 5 and 7 to get their job done, they shouldn't have access to room 4. Globals violate this in a big way. So my style evolved to creating initially empty objects and slowly adding the functionality they needed. If they needed some other object to do their job (the color "red", for example) I would add a local slot and make it point to that. When the object first needed to be copied it would get a parent slot pointing to traits clonable. When things got awkward the object would get an empty object as a parent and then the needed slots would be moved there. This is like the agile motto: "you aren't going to need it". Some programs ended up looking the same as my initial ones like Smalltalk, but that was the end result and not how they started out. Other programs ended up with many objects with no parents at all. In both cases there were typically only one or two objects that could be directly reached via globals. All others were more local. The ideas in StripeTalk reminded me that there is still a lot to explore beyond the familiar programming style of Smalltalk-80. -- Jecel

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Re: [self-interest] Small updates
by David Harris 07 Mar '18

07 Mar '18

Thanks Russell! I get an error: " echo "desktop open. saveAs: 'dev.snap'. quitNoSave " | Self -f worldBuilder.self -o morphic /usr/bin/Self: line 2: /Applications/Self Control.app/Contents/ Resources/Self.app/Contents/MacOS/Self: No such file or directory " It appears that that should perhaps be '/Applications/Self Control.app/Contents/Resources/Self.app/Contents/MacOS/Self *Control*', is in that directory? Thanks again, David On Tue, Mar 6, 2018 at 4:37 PM, Russell Allen mail(a)russell-allen.com [self-interest] <self-interest(a)yahoogroups.com> wrote: > Hi everyone, > > I thought since the mailing list has been a bit quiet I might do some > updates, partly to show activity and partly to prompt myself to do stuff :) > > Activity happens on the 'dev' branch on github.com/russellallen/self and > since the 2017.1 release I have: > > * Made Morphic more responsive at cost of some CPU usage. The morphic > framerate is determined by the full cycle of getting events, changing > morphs and redrawing the necessary parts of the screen. What I did was > tweak the delays so that > - if events are coming in, the cycle goes as fast as it can > - if events are not coming in, it goes up to 60fps if it can but no faster > but in each case, it won't take more than 50% of the CPU. > > At least on my machines the desktop animations seem smoother and the > system feels more responsive. > > * Nicer looking sliderMorph, so scroll bars on text fields look more like > the macOS rounded rect rather than a thin black line > > * New copyTransparent method on morphs allowing simplification of > intialisation code in a bunch of places > > I also have accumulated some bug fixes: > > * Fix to bug in damage logging causing dragged morphs leaving behind stuff > * Fix to bug preventing shadow being shown when morphs grabbed by hand on > mac > * Fix capitalizeAll (Issue #124) > > Assuming you have Self in your command line path somewhere, you can try > out by: > > > git clone https://github.com/russellallen/self.git > > cd self && git checkout dev && cd objects > > echo "desktop open. saveAs: 'dev.snap'. quitNoSave " | Self -f > worldBuilder.self -o morphic > > You will then have a dev.snap snapshot. > > Have fun, Russell > > > > > ------------------------------------ > Posted by: Russell Allen <mail(a)russell-allen.com> > ------------------------------------ > > > ------------------------------------ > > Yahoo Groups Links > > > >

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Small updates
by Russell Allen 07 Mar '18

07 Mar '18

Hi everyone, I thought since the mailing list has been a bit quiet I might do some updates, partly to show activity and partly to prompt myself to do stuff :) Activity happens on the 'dev' branch on github.com/russellallen/self and since the 2017.1 release I have: * Made Morphic more responsive at cost of some CPU usage. The morphic framerate is determined by the full cycle of getting events, changing morphs and redrawing the necessary parts of the screen. What I did was tweak the delays so that - if events are coming in, the cycle goes as fast as it can - if events are not coming in, it goes up to 60fps if it can but no faster but in each case, it won't take more than 50% of the CPU. At least on my machines the desktop animations seem smoother and the system feels more responsive. * Nicer looking sliderMorph, so scroll bars on text fields look more like the macOS rounded rect rather than a thin black line * New copyTransparent method on morphs allowing simplification of intialisation code in a bunch of places I also have accumulated some bug fixes: * Fix to bug in damage logging causing dragged morphs leaving behind stuff * Fix to bug preventing shadow being shown when morphs grabbed by hand on mac * Fix capitalizeAll (Issue #124) Assuming you have Self in your command line path somewhere, you can try out by: > git clone https://github.com/russellallen/self.git > cd self && git checkout dev && cd objects > echo "desktop open. saveAs: 'dev.snap'. quitNoSave " | Self -f worldBuilder.self -o morphic You will then have a dev.snap snapshot. Have fun, Russell

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Self-interest March 2018