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Re: [Pharo-users] [Pharo-dev] [ANN] New "DarkMetalTheme" for Pharo

by Norbert Hartl

You should call it Insomnia! Norbert > Am 06.10.2016 um 10:36 schrieb Esteban Lorenzano <estebanlm(a)gmail.com>: > > Hi, > > I took some time to extract the ==MUDDarkTheme== I made for my *MUDClient>https://github.com/estebanlm/MUDClient* <https://github.com/estebanlm/MUDClient*>, > repackage it, rebrand it and make it available for everybody. > > So behold, the new DarkMetalTheme ! > > https://github.com/estebanlm/themes <https://github.com/estebanlm/themes> > > <DarkMetalPharo.png>

Oct. 6, 2016

[ANN] New "DarkMetalTheme" for Pharo

by Esteban Lorenzano

Hi, I took some time to extract the ==MUDDarkTheme== I made for my *MUDClient>https://github.com/estebanlm/MUDClient*, repackage it, rebrand it and make it available for everybody. So behold, the new DarkMetalTheme ! https://github.com/estebanlm/themes <https://github.com/estebanlm/themes>

Oct. 6, 2016

Re: [Pharo-users] Is there any library to calculate the geographic distance between two points?

by Sven Van Caekenberghe

> On 06 Oct 2016, at 00:07, HernÃ¡n Morales Durand <hernan.morales(a)gmail.com> wrote: > > Hi Sven, > > Are you ok if I integrate your code into Territorial? Sure ! BTW, I got the basic code from http://www.movable-type.co.uk/scripts/latlong.html with the necessary adaptions. > I'd like to have > > 'Ottawa@CA' asTerritoiralCity distanceWGS84To: 'Rome@IT' asTerritorialCity Well, I also have this one that you might need (testing containment in a closed polygon). T3GeoTools class>>#is: position inside: polygon "T3GeoTools is: 5.33732(a)50.92601 inside: { 5.48230(a)50.82249. 5.49523(a)50.81288. 5.50138(a)50.82008. 5.50228(a)50.82595. 5.49265(a)50.82560. 5.48230(a)50.82249 }" "T3GeoTools is: 5.49007(a)50.82205 inside: { 5.48230(a)50.82249. 5.49523(a)50.81288. 5.50138(a)50.82008. 5.50228(a)50.82595. 5.49265(a)50.82560. 5.48230(a)50.82249 }" "Point in polygon - ray casting algorithm - http://www.ecse.rpi.edu/Homepages/wrf/Research/Short_Notes/pnpoly.html" | inside otherIndex | inside := false. otherIndex := polygon size. polygon doWithIndex: [ :each :index | | other | other := polygon at: otherIndex. (((each y > position y) ~= (other y > position y)) and: [ position x < (((other x - each x) * (position y - each y) / (other y - each y)) + each x) ]) ifTrue: [ inside := inside not ]. otherIndex := index ]. ^ inside Sven > HernÃ¡n > > > 2016-10-05 19:00 GMT-03:00 Sven Van Caekenberghe <sven(a)stfx.eu>: > Hi Paul, > > This is what we use (given WGS84 coordinates) > > T3GeoTools class>>#distanceBetween: firstPosition and: secondPosition > "T3GeoTools distanceBetween: 5.33732(a)50.926 and: 5.49705(a)50.82733" > > | c | > c := (firstPosition y degreeSin * secondPosition y degreeSin) > + (firstPosition y degreeCos * secondPosition y degreeCos > * (secondPosition x degreesToRadians - firstPosition x degreesToRadians) cos). > c := c >= 0 ifTrue: [ 1 min: c ] ifFalse: [ -1 max: c ]. > ^ c arcCos * 6371000 > > Sven > > > On 05 Oct 2016, at 23:28, Paul DeBruicker <pdebruic(a)gmail.com> wrote: > > > > umm ... here is a good place to start > > > > http://forum.world.st/Geo-coordinates-operations-td4732373.html#a4732441 > > > > > > > > Paul DeBruicker wrote > >> I've got a few objects with latitude and longitude and want to be able to > >> find the nearest from a collection > >> > >> > >> Thanks > >> > >> Paul > > > > > > > > > > > > -- > > View this message in context: http://forum.world.st/Is-there-any-library-to-calculate-the-geographic-dist… > > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > > > >

Oct. 5, 2016

Re: [Pharo-users] Is there any library to calculate the geographic distance between two points?

by HernÃ¡n Morales Durand

Hi Sven, Are you ok if I integrate your code into Territorial? I'd like to have 'Ottawa@CA' asTerritoiralCity distanceWGS84To: 'Rome@IT' asTerritorialCity HernÃ¡n 2016-10-05 19:00 GMT-03:00 Sven Van Caekenberghe <sven(a)stfx.eu>: > Hi Paul, > > This is what we use (given WGS84 coordinates) > > T3GeoTools class>>#distanceBetween: firstPosition and: secondPosition > "T3GeoTools distanceBetween: 5.33732(a)50.926 and: 5.49705(a)50.82733" > > | c | > c := (firstPosition y degreeSin * secondPosition y degreeSin) > + (firstPosition y degreeCos * secondPosition y degreeCos > * (secondPosition x degreesToRadians - > firstPosition x degreesToRadians) cos). > c := c >= 0 ifTrue: [ 1 min: c ] ifFalse: [ -1 max: c ]. > ^ c arcCos * 6371000 > > Sven > > > On 05 Oct 2016, at 23:28, Paul DeBruicker <pdebruic(a)gmail.com> wrote: > > > > umm ... here is a good place to start > > > > http://forum.world.st/Geo-coordinates-operations-td4732373.html#a4732441 > > > > > > > > Paul DeBruicker wrote > >> I've got a few objects with latitude and longitude and want to be able > to > >> find the nearest from a collection > >> > >> > >> Thanks > >> > >> Paul > > > > > > > > > > > > -- > > View this message in context: http://forum.world.st/Is- > there-any-library-to-calculate-the-geographic-distance-between-two-points- > tp4918207p4918208.html > > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > > > >

Oct. 5, 2016

Re: [Pharo-users] Is there any library to calculate the geographic distance between two points?

by Sven Van Caekenberghe

Hi Paul, This is what we use (given WGS84 coordinates) T3GeoTools class>>#distanceBetween: firstPosition and: secondPosition "T3GeoTools distanceBetween: 5.33732(a)50.926 and: 5.49705(a)50.82733" | c | c := (firstPosition y degreeSin * secondPosition y degreeSin) + (firstPosition y degreeCos * secondPosition y degreeCos * (secondPosition x degreesToRadians - firstPosition x degreesToRadians) cos). c := c >= 0 ifTrue: [ 1 min: c ] ifFalse: [ -1 max: c ]. ^ c arcCos * 6371000 Sven > On 05 Oct 2016, at 23:28, Paul DeBruicker <pdebruic(a)gmail.com> wrote: > > umm ... here is a good place to start > > http://forum.world.st/Geo-coordinates-operations-td4732373.html#a4732441 > > > > Paul DeBruicker wrote >> I've got a few objects with latitude and longitude and want to be able to >> find the nearest from a collection >> >> >> Thanks >> >> Paul > > > > > > -- > View this message in context: http://forum.world.st/Is-there-any-library-to-calculate-the-geographic-dist… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

Oct. 5, 2016

Is there any library to calculate the geographic distance between two points?

by PAUL DEBRUICKER

I've got a few objects with latitude and longitude and want to be able to find the nearest from a collection Thanks Paul

Oct. 5, 2016

Re: [Pharo-users] Is there any library to calculate the geographic distance between two points?

by Paul DeBruicker

umm ... here is a good place to start http://forum.world.st/Geo-coordinates-operations-td4732373.html#a4732441 Paul DeBruicker wrote > I've got a few objects with latitude and longitude and want to be able to > find the nearest from a collection > > > Thanks > > Paul -- View this message in context: http://forum.world.st/Is-there-any-library-to-calculate-the-geographic-dist… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Oct. 5, 2016

Re: [Pharo-users] GitFileTree-MergeDriver and using it with git mergetool

by Thierry Goubier

Hi Holger, all, just to add that I effectively integrated this into the GitFileTree-MergeDriver, including adding the "mcmerge" merge tool inside the git configuration (where it is only used if you run the command `git merge-tool --tool=mcmerge`). With this, you still keep the ability to interactively solve conflicts on smalltalk source code with another merge tool, such as meld. Thanks for finding a nice way of resolving metadata conflicts in `git cherry-pick` and `git rebase`! Regards, Thierry 2016-10-04 9:29 GMT+02:00 Holger Freyther <holger(a)freyther.de>: > Good Morning, > > Thierry Goubier has merged a change to use the Pharo "merge" as a tool for > "git mergetool" and in this mail I explain how to configure it, give a > small example and explain my usecases for it. I am not sure the merge is > fully working and would like people to test and review (code and merge > results). > > > Configuration: > > edit ~/.gitconfig and put something like: > > [mergetool "mcmerge"] > cmd = /path/to/GitFileTree-MergeDriver/merge --mergetool $BASE > $LOCAL $REMOTE $MERGED > > > > Usage: > > $ git mergetool --tool=mcmerge > > > > > Use case: > > When using git merge to merge n branches, the GitFileTree-MergeDriver will > be consulted to merge the configured files. The same tools are not used > when git cherry-pick and git rebase fail to merge. In these case a manual > call of "git mergetool" is required. > > The following cases might be something you encounter. > > If you maintain a stable branch but want to backport a specific bugfix > from a master branch you might use "git cherry-pick <FIX_FROM_MASTER>" and > end with a merge conflict on the metadata. Using git mergetool > --tool=mcmerge will help you to resolve it. > > You try to contribute to a project that is using git for hosting and have > either been asked to modify your commits or the master version has been > updated while your code was under review. In this case you would issue "git > rebase origin/master". Metadata merge conflicts can be resolved with git > mergetool. > > For work I was creating a bugfix but when thinking of deployment I noticed > that I need to deploy in two phases. Roll-out the initial part of the fix > and once it runs everywhere start rolling out the actual bugfix. What I did > was splitting my bugfix branch in two, merge the first part into > repository. After it has been merged other changes were made before the > update was deployed. To continue to work on the second part of the bugfix I > rebased it and have used git mergetool to merge the metadata. > > > cheers > holger >

Oct. 4, 2016

GitFileTree-MergeDriver and using it with git mergetool

by Holger Freyther

Good Morning, Thierry Goubier has merged a change to use the Pharo "merge" as a tool for "git mergetool" and in this mail I explain how to configure it, give a small example and explain my usecases for it. I am not sure the merge is fully working and would like people to test and review (code and merge results). Configuration: edit ~/.gitconfig and put something like: [mergetool "mcmerge"] cmd = /path/to/GitFileTree-MergeDriver/merge --mergetool $BASE $LOCAL $REMOTE $MERGED Usage: $ git mergetool --tool=mcmerge Use case: When using git merge to merge n branches, the GitFileTree-MergeDriver will be consulted to merge the configured files. The same tools are not used when git cherry-pick and git rebase fail to merge. In these case a manual call of "git mergetool" is required. The following cases might be something you encounter. If you maintain a stable branch but want to backport a specific bugfix from a master branch you might use "git cherry-pick <FIX_FROM_MASTER>" and end with a merge conflict on the metadata. Using git mergetool --tool=mcmerge will help you to resolve it. You try to contribute to a project that is using git for hosting and have either been asked to modify your commits or the master version has been updated while your code was under review. In this case you would issue "git rebase origin/master". Metadata merge conflicts can be resolved with git mergetool. For work I was creating a bugfix but when thinking of deployment I noticed that I need to deploy in two phases. Roll-out the initial part of the fix and once it runs everywhere start rolling out the actual bugfix. What I did was splitting my bugfix branch in two, merge the first part into repository. After it has been merged other changes were made before the update was deployed. To continue to work on the second part of the bugfix I rebased it and have used git mergetool to merge the metadata. cheers holger

Oct. 4, 2016

Re: [Pharo-users] Intro to Microsoft COM for Smalltalkers

by stepharo

ere is some interesting event loop stuff from Tcl. > > http://wiki.tcl.tk/2567 > > I wish we had some easy Tk UI building things in Pharo. Me too :) First I want Bloc to get out and be ready for integration to Pharo but it takes time. > > Spec is okay but not intuitive. As it is the only thing that exposes > the myriad of various Morphs we have and shields us (somewhat) from > the underlying details, we have to use it, but its explorability is > really detrimental to the livecoding side of Pharo. Spec is not to build fun morphic things :) > > Phil > > On Mon, Oct 3, 2016 at 12:25 PM, Ben Coman <btc(a)openinworld.com > <mailto:btc@openinworld.com>> wrote: > > On Mon, Oct 3, 2016 at 6:08 PM, Ben Coman <btc(a)openinworld.com > <mailto:btc@openinworld.com>> wrote: > > On Mon, Oct 3, 2016 at 3:49 PM, CodeDmitry > <dimamakhnin(a)gmail.com <mailto:dimamakhnin@gmail.com>> wrote: > >> a JavaScript timeout is a function that takes a block and a > period of time, > >> and after this period of time, puts the block at the end of > the event > >> queue, to be executed as soon as the runtime is done performing > the tasks in > >> front of it. > >> > >> I am not sure if Pharo has an event queue, so it's a bit harder > to do > >> it(since without one you can't ensure only one thing happens at > a time, and > >> strange things can happen). > >> > >> That said, in simplest terms, imagine writing a clock app for > Pharo, which > >> updates time every second, in JS this would be done by setting > an interval > >> that ticks every 1000ms, and each time places the callback > function(block) > >> at the end of the event queue. > >> > >> Related: > https://www.youtube.com/watch?time_continue=1&v=8aGhZQkoFbQ > <https://www.youtube.com/watch?time_continue=1&v=8aGhZQkoFbQ> > > > > Pharo has a single threaded VM, but multiple green threads can > run concurrently. > > The closest to the event loop you are thinking of most likely the > > Morphic UI Process > > which you can see using World > Tools > Process Browser. When > you execute code > > from Playground it runs in that Process (note what Smalltalk > > historically (circa 1970s?) has > > called a Process is today more commonly know as a Green Thread) > > > > If you select Morphic UI Process you will see its call stack on the > > right, where an interesting method is WorldState>>doOneCycleFor: > > You can gain some insight by turning on auto-update in the Process > > Browser, then open a Browser on WorldState>>doOneCycleFor: > > and put "self haltOnce" at the top, then enable it via... > > Pharo 5: World > System > Enable halt/inspect once. > > Pharo 6: World > Debugging > Enable all break/inspect once. > > > > You will see in the Process Browser that a new Morphic UI Process is > > spawned, and the original Morphic UI Process call stack now has > > #debugProcess at the top > > and a debug window appears that you can step through. Note, > since two > > UI loops are executing here, the image may lock up, but usually its > > fine so hey! live on the edge! > > > I meant to ask the list about a bug I hit doing this.... > > Putting a "self haltOnce" here... > > WorldState>>doOneCycleNowFor: aWorld > DisplayScreen checkForNewScreenSize. > self haltOnce. > "process user input events" > LastCycleTime := Time millisecondClockValue. > self handsDo: [:h | > self activeHand: h. > h processEvents. > self activeHand: nil. > ]. > self activeHand: self hands first. > aWorld runStepMethods. "there are currently some variations here" > self displayWorldSafely: aWorld. > > > When stepping over "self activeHand: nil." > another debugger appears MNU: receiver of "releaseKeyboardFocus:" > is nil > in GLMPagerPanePreviewMorph(Morph)>>delete > > self activeHand > releaseKeyboardFocus: self; > releaseMouseFocus: self. > > > This can obviously be fixed by wrapping "self activeHand" with an > #ifNil: > but alternatively I wonder if the "self activeHand: nil" is really > needed? > It seems redundant since activeHand is set at the top of the loop and > immediately after exiting the loop. > Eliminating it would reduce the propagation of #ifNil: anti-pattern. > > https://pharo.fogbugz.com/default.asp?19169 > <https://pharo.fogbugz.com/default.asp?19169> > > cheers -ben > > > > > In #runStepMethodsIn: you'll see "queue := self class > > deferredUIMessages" for which you enqueue items like this... > > > http://forum.world.st/Issue-3562-in-pharo-Deferred-UI-messages-executed-slo… > <http://forum.world.st/Issue-3562-in-pharo-Deferred-UI-messages-executed-slo…> > > > > After processing the deferred UI messages, each Morph's #step method > > is processed by #runLocalStepMethodsIn: > > refer... http://wiki.squeak.org/squeak/2096 > <http://wiki.squeak.org/squeak/2096> > > > > The display is then rendered by #displayWorldSafely: calling... > > --> #displayWorld > > --> #displayWorld:submorphs: > > which then is a lot to trace through, but depending on the graphics > > back end eventually ends up calling... > > Canvas>>fullDrawMorph: which ultimately invokes one of many > #drawOn: > > or... > > AthensCanvas>>fullDrawMorph: which ultimately invokes one of many > > #drawOnAthensCanvas: > > > > > > So, for a regular timed UI animation, you would define your custom > > morph's #step and #stepTime methods, > > and for lower level stuff you would fork like Dennis suggests. > > > > cheers -ben > > >

Oct. 3, 2016