Beginners July 2012

beginners@lists.squeakfoundation.org

16 participants
11 discussions

Re: Beginners Digest, Vol 75, Issue 10
by patrick dudjalija 22 Jul '12

22 Jul '12

Dear Tobias, Thank you for your suggestion about the animation package of Marcel. I've checked it out, and it seems interesting and promising. Have a nice day, Patrick 2012/7/20, beginners-request(a)lists.squeakfoundation.org <beginners-request(a)lists.squeakfoundation.org>: > Send Beginners mailing list submissions to > beginners(a)lists.squeakfoundation.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.squeakfoundation.org/mailman/listinfo/beginners > or, via email, send a message with subject or body 'help' to > beginners-request(a)lists.squeakfoundation.org > > You can reach the person managing the list at > beginners-owner(a)lists.squeakfoundation.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Beginners digest..." > > > Today's Topics: > > 1. Re: Morphic - how to make a submorph not visible outside his > owner (patrick dudjalija) > 2. Fading out a morph (patrick dudjalija) > 3. Re: Fading out a morph (Tobias Pape) > 4. Re: Morphic - how to make a submorph not visible outside his > owner (David Corking) > 5. About Installer (H. Hirzel) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 19 Jul 2012 15:17:27 +0200 > From: patrick dudjalija <patrick.dudjalija(a)gmail.com> > Subject: [Newbies] Re: Morphic - how to make a submorph not visible > outside his owner > To: beginners(a)lists.squeakfoundation.org > Message-ID: > <CAEMqm6H4RmA+Xmw8RKnHDF6tgHPf6Yt9oWa+8ab3YbCeBCkL6Q(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Dear David, > > It's *EXACTLY* what i needed. > Thank you very much ! > > By the way, anyone got an idea why if the line "Transcript show: (pos > asString);cr." is commented out or the Transcript Window is closed, i don't > get the animation but only the final state of the animation ? (see code > belows). > > Thank you ! > > |m1 m2| > m1:=Morph new. > m1 extent:800@600. > m1 color:Color blue. > m1 center: Display center. > m1 openInWorld. > m1 clipSubmorphs:true. > m2:=Morph new. > m2 extent:200@200. > m2 color:Color red. > m1 addMorph: m2. > m2 center: m1 center. > 1 to:200 do:[:el| > |pos| > (Duration seconds:0.01) asDelay wait. > pos:=(m2 position x -5)@(m2 position y). > ((pos x + m2 width) >= (m1 position x)) ifFalse:[ > pos:=((m1 position x + m1 width)@ m2 position y). > ]. > "Transcript show: (pos asString);cr." > m2 position:pos. > ]. > > 2012/7/19 <beginners-request(a)lists.squeakfoundation.org> > >> Send Beginners mailing list submissions to >> beginners(a)lists.squeakfoundation.org >> >> To subscribe or unsubscribe via the World Wide Web, visit >> http://lists.squeakfoundation.org/mailman/listinfo/beginners >> or, via email, send a message with subject or body 'help' to >> beginners-request(a)lists.squeakfoundation.org >> >> You can reach the person managing the list at >> beginners-owner(a)lists.squeakfoundation.org >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of Beginners digest..." >> >> >> Today's Topics: >> >> 1. Re: Morphic - how to make a submorph not visible outside his >> owner ? (David Corking) >> 2. Re: Morphic - how to make a submorph not visible outside his >> owner ? (David Corking) >> >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Wed, 18 Jul 2012 15:02:25 +0100 >> From: David Corking <lists(a)dcorking.com> >> Subject: Re: [Newbies] Morphic - how to make a submorph not visible >> outside his owner ? >> To: "A friendly place to get answers to even the most basic questions >> about Squeak." <beginners(a)lists.squeakfoundation.org> >> Message-ID: >> < >> CAG+Z5Jc8rM_7-toVpRYmhjG2cfXfR10+ivitvFHkm4U4SKbwkQ(a)mail.gmail.com> >> Content-Type: text/plain; charset=ISO-8859-1 >> >> Patrick, Is clipSubmorphs what you want? >> >> David >> >> >> ------------------------------ >> >> Message: 2 >> Date: Wed, 18 Jul 2012 16:23:07 +0100 >> From: David Corking <lists(a)dcorking.com> >> Subject: Re: [Newbies] Morphic - how to make a submorph not visible >> outside his owner ? >> To: "A friendly place to get answers to even the most basic questions >> about Squeak." <beginners(a)lists.squeakfoundation.org> >> Message-ID: >> <CAG+Z5JcYzXFMzeJnQhd63m4RF+=k9uz_V2SMfL= >> hUVsq5FX50g(a)mail.gmail.com> >> Content-Type: text/plain; charset=ISO-8859-1 >> >> I should be more specific. Try >> >> m1 clipSubmorphs: true. >> >> Hope that helps. David >> >> p.s. I think your do loop pre-empts the Morphic UI loop. >> Have you read John Maloney's tutorial on the step method? >> >> http://stephane.ducasse.free.fr/FreeBooks/CollectiveNBlueBook/morphic.final… >> In the meantime, you could switch your Transcript hack for this hack :) >> m1 refreshWorld. >> >> >> ------------------------------ >> >> _______________________________________________ >> Beginners mailing list >> Beginners(a)lists.squeakfoundation.org >> http://lists.squeakfoundation.org/mailman/listinfo/beginners >> >> >> End of Beginners Digest, Vol 75, Issue 9 >> **************************************** >> >

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Re: Morphic - how to make a submorph not visible outside his owner (David Corking)
by patrick dudjalija 22 Jul '12

22 Jul '12

Dear David, Thank you very much for your help. I 've just realized that you already answered the problem of the loop pre-empting the morphic UI loop on your first answer. And you've been kind enough to develop it after my second question on the same topic. Very nice of you ! Anyway, i've learned something interesting with this hack ... ;-) Once again, thank you very much ! Patrick 2012/7/20, beginners-request(a)lists.squeakfoundation.org <beginners-request(a)lists.squeakfoundation.org>: > Send Beginners mailing list submissions to > beginners(a)lists.squeakfoundation.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.squeakfoundation.org/mailman/listinfo/beginners > or, via email, send a message with subject or body 'help' to > beginners-request(a)lists.squeakfoundation.org > > You can reach the person managing the list at > beginners-owner(a)lists.squeakfoundation.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Beginners digest..." > > > Today's Topics: > > 1. Re: Morphic - how to make a submorph not visible outside his > owner (patrick dudjalija) > 2. Fading out a morph (patrick dudjalija) > 3. Re: Fading out a morph (Tobias Pape) > 4. Re: Morphic - how to make a submorph not visible outside his > owner (David Corking) > 5. About Installer (H. Hirzel) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 19 Jul 2012 15:17:27 +0200 > From: patrick dudjalija <patrick.dudjalija(a)gmail.com> > Subject: [Newbies] Re: Morphic - how to make a submorph not visible > outside his owner > To: beginners(a)lists.squeakfoundation.org > Message-ID: > <CAEMqm6H4RmA+Xmw8RKnHDF6tgHPf6Yt9oWa+8ab3YbCeBCkL6Q(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Dear David, > > It's *EXACTLY* what i needed. > Thank you very much ! > > By the way, anyone got an idea why if the line "Transcript show: (pos > asString);cr." is commented out or the Transcript Window is closed, i don't > get the animation but only the final state of the animation ? (see code > belows). > > Thank you ! > > |m1 m2| > m1:=Morph new. > m1 extent:800@600. > m1 color:Color blue. > m1 center: Display center. > m1 openInWorld. > m1 clipSubmorphs:true. > m2:=Morph new. > m2 extent:200@200. > m2 color:Color red. > m1 addMorph: m2. > m2 center: m1 center. > 1 to:200 do:[:el| > |pos| > (Duration seconds:0.01) asDelay wait. > pos:=(m2 position x -5)@(m2 position y). > ((pos x + m2 width) >= (m1 position x)) ifFalse:[ > pos:=((m1 position x + m1 width)@ m2 position y). > ]. > "Transcript show: (pos asString);cr." > m2 position:pos. > ]. > > 2012/7/19 <beginners-request(a)lists.squeakfoundation.org> > >> Send Beginners mailing list submissions to >> beginners(a)lists.squeakfoundation.org >> >> To subscribe or unsubscribe via the World Wide Web, visit >> http://lists.squeakfoundation.org/mailman/listinfo/beginners >> or, via email, send a message with subject or body 'help' to >> beginners-request(a)lists.squeakfoundation.org >> >> You can reach the person managing the list at >> beginners-owner(a)lists.squeakfoundation.org >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of Beginners digest..." >> >> >> Today's Topics: >> >> 1. Re: Morphic - how to make a submorph not visible outside his >> owner ? (David Corking) >> 2. Re: Morphic - how to make a submorph not visible outside his >> owner ? (David Corking) >> >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Wed, 18 Jul 2012 15:02:25 +0100 >> From: David Corking <lists(a)dcorking.com> >> Subject: Re: [Newbies] Morphic - how to make a submorph not visible >> outside his owner ? >> To: "A friendly place to get answers to even the most basic questions >> about Squeak." <beginners(a)lists.squeakfoundation.org> >> Message-ID: >> < >> CAG+Z5Jc8rM_7-toVpRYmhjG2cfXfR10+ivitvFHkm4U4SKbwkQ(a)mail.gmail.com> >> Content-Type: text/plain; charset=ISO-8859-1 >> >> Patrick, Is clipSubmorphs what you want? >> >> David >> >> >> ------------------------------ >> >> Message: 2 >> Date: Wed, 18 Jul 2012 16:23:07 +0100 >> From: David Corking <lists(a)dcorking.com> >> Subject: Re: [Newbies] Morphic - how to make a submorph not visible >> outside his owner ? >> To: "A friendly place to get answers to even the most basic questions >> about Squeak." <beginners(a)lists.squeakfoundation.org> >> Message-ID: >> <CAG+Z5JcYzXFMzeJnQhd63m4RF+=k9uz_V2SMfL= >> hUVsq5FX50g(a)mail.gmail.com> >> Content-Type: text/plain; charset=ISO-8859-1 >> >> I should be more specific. Try >> >> m1 clipSubmorphs: true. >> >> Hope that helps. David >> >> p.s. I think your do loop pre-empts the Morphic UI loop. >> Have you read John Maloney's tutorial on the step method? >> >> http://stephane.ducasse.free.fr/FreeBooks/CollectiveNBlueBook/morphic.final… >> In the meantime, you could switch your Transcript hack for this hack :) >> m1 refreshWorld. >> >> >> ------------------------------ >> >> _______________________________________________ >> Beginners mailing list >> Beginners(a)lists.squeakfoundation.org >> http://lists.squeakfoundation.org/mailman/listinfo/beginners >> >> >> End of Beginners Digest, Vol 75, Issue 9 >> **************************************** >> >

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About Installer
by H. Hirzel 20 Jul '12

20 Jul '12

Hello The class level documentation for the Installer class refers to http://installer.pbwiki.com/Installer That page says "Installer provides a simple Domain Specific Language for installing packages from Monticello and SqueakMap of various version." >From the code I see that there is an instance variable 'noiseLevel'. And there is as well a class method protocol called 'logging' but it only contains one method log: aString Transcript show: aString; cr. My questions: 1) What is the Installer DSL expression for raising the noiseLevel 2) I assume the log goes to Transcript. Is there another option? Thank you for the answers in advance Hannes

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Re: Morphic - how to make a submorph not visible outside his owner
by patrick dudjalija 19 Jul '12

19 Jul '12

Dear David, It's *EXACTLY* what i needed. Thank you very much ! By the way, anyone got an idea why if the line "Transcript show: (pos asString);cr." is commented out or the Transcript Window is closed, i don't get the animation but only the final state of the animation ? (see code belows). Thank you ! |m1 m2| m1:=Morph new. m1 extent:800@600. m1 color:Color blue. m1 center: Display center. m1 openInWorld. m1 clipSubmorphs:true. m2:=Morph new. m2 extent:200@200. m2 color:Color red. m1 addMorph: m2. m2 center: m1 center. 1 to:200 do:[:el| |pos| (Duration seconds:0.01) asDelay wait. pos:=(m2 position x -5)@(m2 position y). ((pos x + m2 width) >= (m1 position x)) ifFalse:[ pos:=((m1 position x + m1 width)@ m2 position y). ]. "Transcript show: (pos asString);cr." m2 position:pos. ]. 2012/7/19 <beginners-request(a)lists.squeakfoundation.org> > Send Beginners mailing list submissions to > beginners(a)lists.squeakfoundation.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.squeakfoundation.org/mailman/listinfo/beginners > or, via email, send a message with subject or body 'help' to > beginners-request(a)lists.squeakfoundation.org > > You can reach the person managing the list at > beginners-owner(a)lists.squeakfoundation.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Beginners digest..." > > > Today's Topics: > > 1. Re: Morphic - how to make a submorph not visible outside his > owner ? (David Corking) > 2. Re: Morphic - how to make a submorph not visible outside his > owner ? (David Corking) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 18 Jul 2012 15:02:25 +0100 > From: David Corking <lists(a)dcorking.com> > Subject: Re: [Newbies] Morphic - how to make a submorph not visible > outside his owner ? > To: "A friendly place to get answers to even the most basic questions > about Squeak." <beginners(a)lists.squeakfoundation.org> > Message-ID: > < > CAG+Z5Jc8rM_7-toVpRYmhjG2cfXfR10+ivitvFHkm4U4SKbwkQ(a)mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > Patrick, Is clipSubmorphs what you want? > > David > > > ------------------------------ > > Message: 2 > Date: Wed, 18 Jul 2012 16:23:07 +0100 > From: David Corking <lists(a)dcorking.com> > Subject: Re: [Newbies] Morphic - how to make a submorph not visible > outside his owner ? > To: "A friendly place to get answers to even the most basic questions > about Squeak." <beginners(a)lists.squeakfoundation.org> > Message-ID: > <CAG+Z5JcYzXFMzeJnQhd63m4RF+=k9uz_V2SMfL= > hUVsq5FX50g(a)mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > I should be more specific. Try > > m1 clipSubmorphs: true. > > Hope that helps. David > > p.s. I think your do loop pre-empts the Morphic UI loop. > Have you read John Maloney's tutorial on the step method? > > http://stephane.ducasse.free.fr/FreeBooks/CollectiveNBlueBook/morphic.final… > In the meantime, you could switch your Transcript hack for this hack :) > m1 refreshWorld. > > > ------------------------------ > > _______________________________________________ > Beginners mailing list > Beginners(a)lists.squeakfoundation.org > http://lists.squeakfoundation.org/mailman/listinfo/beginners > > > End of Beginners Digest, Vol 75, Issue 9 > **************************************** >

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Fading out a morph
by patrick dudjalija 19 Jul '12

19 Jul '12

Hello everyone ! I found a way to fade out a morph via the BitBlt class. Problem is with the code line "(Duration seconds:1) asDelay wait." When this line is present, i don't see the intermediary states, only the final result. But i need wait time at each iteration of BitBlt copyBits, precisely to visualize the fading out ... see code below. Thank you very much for any help ... Patrick |s| s:=SketchMorph fromStream: (FileStream readOnlyFileNamed:'.\images\LesPetitesBetes\abeille.png'). s openInWorld. s center:Display center. 1 to: 10 do: [:el| (Duration seconds:1) asDelay wait. (BitBlt destForm: s form sourceForm: nil halftoneForm: ((Color white) alpha:0.2) combinationRule:24 destOrigin:0@0 sourceOrigin:0@0 extent:(s extent) clipRect: ((0@0) extent: (s extent)) ) copyBits. ].

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Morphic - how to make a submorph not visible outside his owner ?
by patrick dudjalija 18 Jul '12

18 Jul '12

Hi everyone ! I'm playing around with horizontal scrolling of a submorph into a morph. Let's take a simple horizontal scrolling to the left. When the submorph is getting out of the left side of the morph, it should reappear to the right side of the morph. The problem is that during the "transition" the submorph is still visible outside of the morph. So, I'm searching for a solution for the submorph not being visible outside the bounds of it's owner. To visualize the problem, see code below. (for an obscure reason, the transcript window must be opened, but that's not the point). Thanks a lot for your help !!!! Here is the sample code (don't forget to open the transcript window): |m1 m2| m1:=Morph new. m1 extent:800@600. m1 color:Color blue. m1 center: Display center. m1 openInWorld. m2:=Morph new. m2 extent:200@200. m2 color:Color red. m1 addMorph: m2. m2 center: m1 center. 1 to:200 do:[:el| |pos| (Duration seconds:0.01) asDelay wait. pos:=(m2 position x -5)@(m2 position y). ((pos x + m2 width) >= (m1 position x)) ifFalse:[ pos:=((m1 position x + m1 width)@ m2 position y). ]. Transcript show: (pos asString);cr. m2 position:pos. ].

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Re: Beginners Digest, Vol 75, Issue 4
by Bruce Prior 14 Jul '12

14 Jul '12

Before I asked the question, I thought of the object domain much as Casey has said: "I think of an object domain as just the set of objects which implements a feature or solves a problem." Thanks to Chris, David and Casey for adding more detail and different viewpoints. It all helps to improve my understanding. On 12-07-08 5:00 AM, beginners-request(a)lists.squeakfoundation.org wrote: > Send Beginners mailing list submissions to > beginners(a)lists.squeakfoundation.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.squeakfoundation.org/mailman/listinfo/beginners > or, via email, send a message with subject or body 'help' to > beginners-request(a)lists.squeakfoundation.org > > You can reach the person managing the list at > beginners-owner(a)lists.squeakfoundation.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Beginners digest..." > > > Today's Topics: > > 1. Re: Object Domain (Casey Ransberger) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 7 Jul 2012 10:17:51 -0700 > From: Casey Ransberger <casey.obrien.r(a)gmail.com> > Subject: Re: [Newbies] Object Domain > To: "david.mitchell(a)gmail.com" <david.mitchell(a)gmail.com>, "A friendly > place to get answers to eventhe most basic questions about Squeak." > <beginners(a)lists.squeakfoundation.org> > Message-ID: <AD237312-39B1-4044-A0AD-E96611BC0B11(a)gmail.com> > Content-Type: text/plain; charset=us-ascii > > I agree with David's statement below, generally. It's worth noting that in Smalltalk, our object memory + virtual machine together serve as a kind of non-relational database which preserves both state and behavior, but one doesn't generally have to think about it and that's beautiful:) > > Even in SQL one has triggers and stored procedures, so perhaps the distinction is pervasively arbitrary. Someday we may have fast non-volatile RAM and no separate long term storage, at which point databases and persistence as we popularly think about them may even disappear entirely. > > One of Smalltalk's offspring, the Self language, uses message sends (as far as the programmer is concerned) to access state, and thus does away with assignment in the usual/low-level sense. This is fun to think about (for me anyway!) > > Someone please correct me if I'm wrong here, but I think of "object domain" and "object model" (where the word model is distinct from and more general than the Model in MVC) as being interchangeable. > > I think of an object domain as just the set of objects which implements a feature or solves a problem. I suppose I may have my terminology mixed up though, so sound off if I'm wrong here folks:) > > --Casey Ransberger > > On Jul 6, 2012, at 2:42 PM, David Mitchell <david.mitchell(a)gmail.com> wrote: > >> I think a lot of people think of the domain as the database, but I've always thought of the database as how you store your domain model, not the domain model itself. > > ------------------------------ > > _______________________________________________ > Beginners mailing list > Beginners(a)lists.squeakfoundation.org > http://lists.squeakfoundation.org/mailman/listinfo/beginners > > > End of Beginners Digest, Vol 75, Issue 4 > **************************************** >

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How to add/enable speech synthesis?
by Dr. Alexander Klein 13 Jul '12

13 Jul '12

Hello, I just wanted to experiment with speech synthesis in Squeak 4.3 All-in-one, but after an hour or so of browsing I still can't find where to enable it. I thought I'd find it in SqueakMap, but it doesn't seem to be there. Can anyone give me a hint? Thank you in advance, Alex -- Dr. Alexander Klein, Diplom-Mathematiker Physiologisches Institut der JLU-Gießen Aulweg 129 35392 Gießen http://www.med.uni-giessen.de/physio/

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Object Domain
by Bruce Prior 07 Jul '12

07 Jul '12

I see the term object domain used a lot these days but I'm hardpressed to understand what it actually is. Can someone please tell me what an object domain is and perhaps give an example? many thanks. Bruce Prior

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looking for mentors
by Sung won Lim 04 Jul '12

04 Jul '12

Hi, I'm a student living in nyc area. I've been tinkering around with squeak for a while now and think it's a really promising platform for developing bioinformatics tools aimed at high school students working in biology laboratory settings. I'd love to be able to receive mentorship and trade notes with someone well versed in the language. I'm willing to teach you how to screen your own genomes and barcode DNA of different organisms if you want. Anyone up for it? -sung

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Beginners July 2012