December 2014 - Pharo-users

Re: [Pharo-users] Question on temporal variables in Workspace

by Edward Povazan

I am a bit new to Pharo, anyone please correct me if I am wrong. The Workspace has a #mustDeclareVariables: method. I am assuming it is set to false by default. The colour changes once you DoIt on the code, as the variable is automatically created and bound to the workspace, so after running once, it exists. You can see this as the first time when you try inspect a variable, an error occurs. After DoIt, it changes colour, and you can inspect it. Cheers, -Edward > On Dec 27, 2014, at 11:28 AM, nacho <0800nacho(a)gmail.com> wrote: > > Hi pharoers, > In killion video tutorials I see that he uses variables not declaring them > as temporal (that is | aVariable | ). > If one does not declare variables as temporal in a workspace what kind of > variables are them? > Also why in the tutorial they appear in blue and in my workspace they appear > in red as if there was something wrong? (actually if I declare all variables > as temporal using | | then all turn tu blue). > Thanks in advance and best regards > Nacho > > > > > ----- > Nacho > Smalltalker apprentice. > Buenos Aires, Argentina. > -- > View this message in context: http://forum.world.st/Question-on-temporal-variables-in-Workspace-tp4797161… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

Dec. 28, 2014

Re: [Pharo-users] CrossMorph in PBE and compositing bug

by Edward Povazan

Thank you Nicolai, areasRemainingToFill: is what I was looking for, did not see it due to looking for âtransparentâ or âopaqueâ or similar message. -Edward ^ Array with: aRectangle > On Dec 27, 2014, at 6:38 AM, Nicolai Hess <nicolaihess(a)web.de> wrote: > > 2014-12-27 4:10 GMT+01:00 Edward Povazan <empovazan(a)gmail.com <mailto:empovazan@gmail.com>>: > Thanks. It does work to add a little alpha to the colour, but is there no other way? > If I want a solid colour, then what? I should be able to say âthis is a weird shaped morph, not a rectangleâ, but not seeing it. > > -Ed > > Hi Edward > There are two possible solutions: > > If you look at for example StringMorph, PolygonMorph or EllipseMorph and to their "drawing" protocoll, you'll see they overwrite > areasRemainingToFill: > if you copy this method to the CrossMorph class, it will work as you want. > > The reason for this is, the default morph uses its color to paint the whole area and don't need > to care about the underlying area. > > The second solution, as you may have seen from looking at the code in Morph areasRemainingToFill: > is to use a transparent color ("Color transparent") for your morph (the default color is "Color blue") > and use a different color actually for painting the cross. > (for example, you can add another instance variable "crossColor" and use that one in the > drawOn: method. > > > nicolai > > > > > > > > > On Dec 26, 2014, at 11:58 AM, Hilaire <hilaire(a)drgeo.eu <mailto:hilaire@drgeo.eu>> wrote: > > > > Hello, > > > > Morph color can be set to translucent, in your example it is problably > > set with ColorTranslucent r:g:b or a similar class. Not sure about the name. > > > > Hilaire > > > > Le 26/12/2014 20:43, Edward Povazan a Ã©crit : > >> Hello, > >> > >> In the PBE example, and CrossMorph is created. As can be seen from its name, It is has a cross shape. > >> > >> When one adds keyboard handling to move it about, it seems the compositor thinks it is opaque, and doesnât repaint the ânot crossâ areas with whatever is behind the morph. > >> > >> The result is the shape smears across the screen. > >> This only occurs when moving exactly horizontally or vertically. > >> > >> Iâve been looking over the Morph API but canât detect a method like #opaque: or #translucent: or similar. > >> > >> Is this a bug, or am I missing the correct way to deal with transparent/irregular shaped morphs? > >> > >> Thanks, > >> -Ed > >> > >> > >> > > > > > > -- > > Dr. Geo - http://drgeo.eu <http://drgeo.eu/> > > iStoa - http://istoa.drgeo.eu <http://istoa.drgeo.eu/> > > > >

Dec. 28, 2014

Re: [Pharo-users] Do not forget to register to Pharo days...

by stepharo

Hi nacho > Hi Stef, > > Are the conferences going to be recorded? I do not know. I will check with the amphitheater. > It would be great for those who can't attend > best > Nacho > > > > > ----- > Nacho > Smalltalker apprentice. > Buenos Aires, Argentina. > -- > View this message in context: http://forum.world.st/Do-not-forget-to-register-to-Pharo-days-tp4796714p479… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

Dec. 27, 2014

Re: [Pharo-users] Do not forget to register to Pharo days...

by nacho

Hi Stef, Are the conferences going to be recorded? It would be great for those who can't attend. best Nacho ----- Nacho Smalltalker apprentice. Buenos Aires, Argentina. -- View this message in context: http://forum.world.st/Do-not-forget-to-register-to-Pharo-days-tp4796714p479… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Dec. 27, 2014

Question on temporal variables in Workspace

by nacho

Hi pharoers, In killion video tutorials I see that he uses variables not declaring them as temporal (that is | aVariable | ). If one does not declare variables as temporal in a workspace what kind of variables are them? Also why in the tutorial they appear in blue and in my workspace they appear in red as if there was something wrong? (actually if I declare all variables as temporal using | | then all turn tu blue). Thanks in advance and best regards Nacho ----- Nacho Smalltalker apprentice. Buenos Aires, Argentina. -- View this message in context: http://forum.world.st/Question-on-temporal-variables-in-Workspace-tp4797161… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Dec. 27, 2014

Re: [Pharo-users] Traveling to PharoDays

by Udo Schneider

Hi Stef, I didn't take CDG into account - but this might make my life a lot easier. Thanks, Udo On 27/12/14 14:25, stepharo wrote: > Hi Udo > > Pay attention there are two airports tagged brussels > > via charleroy airport you can get a shuttle that brings you right > at Eurostar stop inside Lille. > The other one is not that easy to get to lille. > The best if you can is Charles de Gaulle airport (45 min train to > Lille). > > Stef > > Le 27/12/14 12:21, Udo Schneider a Ã©crit : >> All, >> >> what's the best international Airport to reach Lille? I'm currently >> thinking of flying to Brussels and take a train from there? Any other >> recommendations? >> >> CU, >> >> Udo >> >> >> >> > > >

Dec. 27, 2014

Re: [Pharo-users] Traveling to PharoDays

by phil＠highoctane.be

Depends on which one, some do not. Well, all the ones I do use aren't. Beware. On Sat, Dec 27, 2014 at 3:23 PM, Johan Fabry <jfabry(a)dcc.uchile.cl> wrote: > Yes it does, but the extra complexity lies in getting from Brussels > airport to the TGV train station. From Brussels International airport there > are trains to that station IIRC. The advantage of Paris is that the TGV > station is right in the airport. > > Sent from my iPhone > > On 27 Dec 2014, at 10:08, Joachim Tuchel <jtuchel(a)objektfabrik.de> wrote: > > Doesn't the Thalys from Brussels to Paris stop in Lille? > > ClÃ©ment Bera <bera.clement(a)gmail.com> schrieb: > > There's a direct train from Paris CDG airport to Lille. It's usually more > complex to go from brussels airport to Lille. > > There's an airport in Lille but there's very few flights from there (only > to Marseilles and Porto AFAIK). > > 2014-12-27 12:21 GMT+01:00 Udo Schneider <udo.schneider(a)homeaddress.de>: > >> All, >> >> what's the best international Airport to reach Lille? I'm currently >> thinking of flying to Brussels and take a train from there? Any other >> recommendations? >> >> CU, >> >> Udo >> >> >> >

Dec. 27, 2014

Re: [Pharo-users] CrossMorph in PBE and compositing bug

by Nicolai Hess

2014-12-27 4:10 GMT+01:00 Edward Povazan <empovazan(a)gmail.com>: > Thanks. It does work to add a little alpha to the colour, but is there no > other way? > If I want a solid colour, then what? I should be able to say âthis is a > weird shaped morph, not a rectangleâ, but not seeing it. > > -Ed > Hi Edward There are two possible solutions: If you look at for example StringMorph, PolygonMorph or EllipseMorph and to their "drawing" protocoll, you'll see they overwrite areasRemainingToFill: if you copy this method to the CrossMorph class, it will work as you want. The reason for this is, the default morph uses its color to paint the whole area and don't need to care about the underlying area. The second solution, as you may have seen from looking at the code in Morph areasRemainingToFill: is to use a transparent color ("Color transparent") for your morph (the default color is "Color blue") and use a different color actually for painting the cross. (for example, you can add another instance variable "crossColor" and use that one in the drawOn: method. nicolai > > > > On Dec 26, 2014, at 11:58 AM, Hilaire <hilaire(a)drgeo.eu> wrote: > > > > Hello, > > > > Morph color can be set to translucent, in your example it is problably > > set with ColorTranslucent r:g:b or a similar class. Not sure about the > name. > > > > Hilaire > > > > Le 26/12/2014 20:43, Edward Povazan a Ã©crit : > >> Hello, > >> > >> In the PBE example, and CrossMorph is created. As can be seen from its > name, It is has a cross shape. > >> > >> When one adds keyboard handling to move it about, it seems the > compositor thinks it is opaque, and doesnât repaint the ânot crossâ areas > with whatever is behind the morph. > >> > >> The result is the shape smears across the screen. > >> This only occurs when moving exactly horizontally or vertically. > >> > >> Iâve been looking over the Morph API but canât detect a method like > #opaque: or #translucent: or similar. > >> > >> Is this a bug, or am I missing the correct way to deal with > transparent/irregular shaped morphs? > >> > >> Thanks, > >> -Ed > >> > >> > >> > > > > > > -- > > Dr. Geo - http://drgeo.eu > > iStoa - http://istoa.drgeo.eu > > > > > > >

Dec. 27, 2014

Re: [Pharo-users] Traveling to PharoDays

by Johan Fabry

Yes it does, but the extra complexity lies in getting from Brussels airport to the TGV train station. From Brussels International airport there are trains to that station IIRC. The advantage of Paris is that the TGV station is right in the airport. Sent from my iPhone > On 27 Dec 2014, at 10:08, Joachim Tuchel <jtuchel(a)objektfabrik.de> wrote: > > Doesn't the Thalys from Brussels to Paris stop in Lille? > > ClÃ©ment Bera <bera.clement(a)gmail.com> schrieb: > > There's a direct train from Paris CDG airport to Lille. It's usually more complex to go from brussels airport to Lille. > > There's an airport in Lille but there's very few flights from there (only to Marseilles and Porto AFAIK). > > 2014-12-27 12:21 GMT+01:00 Udo Schneider <udo.schneider(a)homeaddress.de>: >> All, >> >> what's the best international Airport to reach Lille? I'm currently thinking of flying to Brussels and take a train from there? Any other recommendations? >> >> CU, >> >> Udo >

Dec. 27, 2014

Re: [Pharo-users] Traveling to PharoDays

by stepharo

Hi Udo Pay attention there are two airports tagged brussels via charleroy airport you can get a shuttle that brings you right at Eurostar stop inside Lille. The other one is not that easy to get to lille. The best if you can is Charles de Gaulle airport (45 min train to Lille). Stef Le 27/12/14 12:21, Udo Schneider a Ã©crit : > All, > > what's the best international Airport to reach Lille? I'm currently > thinking of flying to Brussels and take a train from there? Any other > recommendations? > > CU, > > Udo > > > >

Dec. 27, 2014