[Newbies] PEN

Wed Nov 26 21:57:39 UTC 2014



*|pen|*
pen := (GraphPane openWindow: 'Simple' extent: 220 @ 200 ) pen.
pen


On 26.11.2014 19:39, beginners-request at lists.squeakfoundation.org wrote:
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> Today's Topics:
>
>     1. Beginner wants to start graphic windows in Smalltalk 80 -
>        need help (Hans Schueren)
>     2. Re: Beginner wants to start graphic windows in Smalltalk 80	-
>        need help (David T. Lewis)
>     3. Re: Beginner wants to start graphic windows in Smalltalk 80	-
>        need help (Michael Rice)
>     4. Re: Beginners Digest, Vol 102, Issue 13 (dnorton at mindspring.com)
>     5. Re: Re: Beginners Digest, Vol 102, Issue 13 (Raymond Asselin)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 26 Nov 2014 14:10:42 +0100
> From: Hans Schueren <werbung at hans-schueren.de>
> Subject: [Newbies] Beginner wants to start graphic windows in
> 	Smalltalk 80 -	need help
> To: "beginners at lists.squeakfoundation.org"
> 	<beginners at lists.squeakfoundation.org>
> Message-ID: <5475D152.2070206 at hans-schueren.de>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
>
> To whom it may concern ,
>
>
> may i ask for some help about standard graphic routines ?
>
> As a beginner i just have learned all the first level SYNTAX of
> smalltalk 80.
>
> Now , you can imagine , i am interested in writing little GUI windows
> and graphics for
>
> placing some text in the right positions.
>
>
> Theese are the statements i have studied from my material.
>
>
> Does anybody know why the statements not work?
>
> Are there any "replacements" for the syntax that i posted here as example ?
>
> Have a nice day
>
>
>
>
> HERE ARE THE EXAMPLES :
>
>
>
>
> | window |
> window := ScheduledWindow new.
> window component: 'Hello World' asComposedText.
> window open
>
>
>
>
> | window |
> window := ScheduledWindow new.
> window label: 'Fenster ohne Inhalt'.
> window minimumSize: 200 @ 100; maximumSize: 400 @ 300.
> window open
>
>
>
>
> displayOn: aGraphicsContext
> 1 to: 10 do:
> [:i|
> aGraphicsContext translation printString
>      asComposedText displayOn: aGraphicsContext.
> aGraphicsContext translateBy: 15 @ 15]
>
>
>
>
> Greetings
>
>
> Hans
> The Byte Surfer
>
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 26 Nov 2014 09:13:54 -0500
> From: "David T. Lewis" <lewis at mail.msen.com>
> Subject: Re: [Newbies] Beginner wants to start graphic windows in
> 	Smalltalk 80	- need help
> To: "A friendly place to get answers to even the most basic questions
> 	about	Squeak." <beginners at lists.squeakfoundation.org>
> Message-ID: <20141126141354.GA77002 at shell.msen.com>
> Content-Type: text/plain; charset=us-ascii
>
> On Wed, Nov 26, 2014 at 02:10:42PM +0100, Hans Schueren wrote:
>> To whom it may concern ,
>>
>>
>> may i ask for some help about standard graphic routines ?
>>
>> As a beginner i just have learned all the first level SYNTAX of
>> smalltalk 80.
>>
>> Now , you can imagine , i am interested in writing little GUI windows
>> and graphics for
>>
>> placing some text in the right positions.
>>
>>
>> Theese are the statements i have studied from my material.
>>
>>
>> Does anybody know why the statements not work?
>>
>> Are there any "replacements" for the syntax that i posted here as example ?
>>
>> Have a nice day
>>
> Hello Hans,
>
> Can you please say what book or paper you are using? Also check if your
> learning material specifies what version of Smalltalk was used for the
> examples.
>
> Your examples look like some version of the MVC user interface, which
> was the original (and still very interesting) user interface in Smalltalk
> and Squeak. Squeak still provides some support for MVC, so for example
> there probably is some equivalent to the ScheduledWindow class used in
> your example below. You may also be interested in other user interface
> approaches, such as Morphic, which are very different from MVC.
>
> Dave
>
>
>>
>>
>> HERE ARE THE EXAMPLES :
>>
>>
>>
>>
>> | window |
>> window := ScheduledWindow new.
>> window component: 'Hello World' asComposedText.
>> window open
>>
>>
>>
>>
>> | window |
>> window := ScheduledWindow new.
>> window label: 'Fenster ohne Inhalt'.
>> window minimumSize: 200 @ 100; maximumSize: 400 @ 300.
>> window open
>>
>>
>>
>>
>> displayOn: aGraphicsContext
>> 1 to: 10 do:
>> [:i|
>> aGraphicsContext translation printString
>>     asComposedText displayOn: aGraphicsContext.
>> aGraphicsContext translateBy: 15 @ 15]
>>
>>
>>
>>
>> Greetings
>>
>>
>> Hans
>> The Byte Surfer
>>
>> _______________________________________________
>> Beginners mailing list
>> Beginners at lists.squeakfoundation.org
>> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>
> ------------------------------
>
> Message: 3
> Date: Wed, 26 Nov 2014 12:08:52 -0500
> From: Michael Rice <limitcase at gmail.com>
> Subject: Re: [Newbies] Beginner wants to start graphic windows in
> 	Smalltalk 80	- need help
> To: "A friendly place to get answers to even the most basic questions
> 	about	Squeak." <beginners at lists.squeakfoundation.org>
> Message-ID:
> 	<CAGw08vM7AVJMAP6PGHMY7EZdx_Mu7z4K06Sy2nNQfy0NBJu7MA at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> I was just browsing FormEditor. A lot has changed since the original MVC,
> some to make it compatible with Morphic, e.g., the instance method 'edit'
> of Form
>
> edit
> "Open a form editor on this form."
>
> Project current formEdit: self
>
> As you can see, the current project has some responsibilities.
>
> Project current ->  a MVCProject (Unnamed) in a ControlManager
>
>
> current
> "Answer the project that is currently being used."
>
> ^CurrentProject
>
> a class variable of Project.
>
>
> For Project:
>
> formEdit: aForm
> "Start up an instance of the form editor on a form."
>
> self subclassResponsibility
>
>
> Subclasses of Project are MVCProject and MorphicProject
>
> For MVCProject:
>
>
> formEdit: aForm
> "Start up an instance of the FormEditor on a form..."
>
> FormEditor openOnForm: aForm
>
> Poking around in FormEditor and its associated classes, while tedious, can
> yield useful information on how these views, models, and controllers
> inter-operate.
>
>
> Michael
>
>
>
>
>
> On Wed, Nov 26, 2014 at 9:13 AM, David T. Lewis <lewis at mail.msen.com> wrote:
>
>> On Wed, Nov 26, 2014 at 02:10:42PM +0100, Hans Schueren wrote:
>>> To whom it may concern ,
>>>
>>>
>>> may i ask for some help about standard graphic routines ?
>>>
>>> As a beginner i just have learned all the first level SYNTAX of
>>> smalltalk 80.
>>>
>>> Now , you can imagine , i am interested in writing little GUI windows
>>> and graphics for
>>>
>>> placing some text in the right positions.
>>>
>>>
>>> Theese are the statements i have studied from my material.
>>>
>>>
>>> Does anybody know why the statements not work?
>>>
>>> Are there any "replacements" for the syntax that i posted here as
>> example ?
>>> Have a nice day
>>>
>> Hello Hans,
>>
>> Can you please say what book or paper you are using? Also check if your
>> learning material specifies what version of Smalltalk was used for the
>> examples.
>>
>> Your examples look like some version of the MVC user interface, which
>> was the original (and still very interesting) user interface in Smalltalk
>> and Squeak. Squeak still provides some support for MVC, so for example
>> there probably is some equivalent to the ScheduledWindow class used in
>> your example below. You may also be interested in other user interface
>> approaches, such as Morphic, which are very different from MVC.
>>
>> Dave
>>
>>
>>>
>>>
>>> HERE ARE THE EXAMPLES :
>>>
>>>
>>>
>>>
>>> | window |
>>> window := ScheduledWindow new.
>>> window component: 'Hello World' asComposedText.
>>> window open
>>>
>>>
>>>
>>>
>>> | window |
>>> window := ScheduledWindow new.
>>> window label: 'Fenster ohne Inhalt'.
>>> window minimumSize: 200 @ 100; maximumSize: 400 @ 300.
>>> window open
>>>
>>>
>>>
>>>
>>> displayOn: aGraphicsContext
>>> 1 to: 10 do:
>>> [:i|
>>> aGraphicsContext translation printString
>>>     asComposedText displayOn: aGraphicsContext.
>>> aGraphicsContext translateBy: 15 @ 15]
>>>
>>>
>>>
>>>
>>> Greetings
>>>
>>>
>>> Hans
>>> The Byte Surfer
>>>
>>> _______________________________________________
>>> Beginners mailing list
>>> Beginners at lists.squeakfoundation.org
>>> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>> _______________________________________________
>> Beginners mailing list
>> Beginners at lists.squeakfoundation.org
>> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>>
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> ------------------------------
>
> Message: 4
> Date: Wed, 26 Nov 2014 12:42:33 -0500 (GMT-05:00)
> From: <dnorton at mindspring.com>
> Subject: [Newbies] Re: Beginners Digest, Vol 102, Issue 13
> To: beginners at lists.squeakfoundation.org
> Message-ID:
> 	<7065423.1417023753041.JavaMail.root at elwamui-darkeyed.atl.sa.earthlink.net>
> 	
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> ------------------------------
>
> Message: 5
> Date: Wed, 26 Nov 2014 13:38:55 -0500
> From: Raymond Asselin <jgr.asselin at me.com>
> Subject: Re: [Newbies] Re: Beginners Digest, Vol 102, Issue 13
> To: "dnorton at mindspring.com" <dnorton at mindspring.com>,	"A friendly
> 	place to get answers to even the most basic questions	about	Squeak."
> 	<beginners at lists.squeakfoundation.org>
> Message-ID: <C0FC5870-A03B-4C8B-9178-E9BEB374DF0F at me.com>
> Content-Type: text/plain; charset="utf-8"
>
> I suppose you put "self halt." ?
>
> EnvoyÃ© de mon iPhone
>
>> Le 2014-11-26 Ã  12:42, dnorton at mindspring.com a Ã©crit :
>>
>> Hi Casey,
>>
>> The target is Browser, which does not override the method.
>> The hierarchy is: ProtoObject, Object, Model, StringHolder (has the method), CodeHolder, Browser, et seq.
>>
>>   
>>
>> I put the halt in StringHolder>>perform:orSendTo: and that didn't bring up the debugger.
>>
>>   
>>
>> There are 13 implementers of perform:orSendTo: and I can put a halt in each one in order to start the research, but I don't understand why the hierarchy seems to be bypassed.
>>
>>   
>>
>> - Dan
>>> Date: Tue, 25 Nov 2014 21:43:57 -0800
>>> From: Casey Ransberger
>>> Subject: Re: [Newbies] accept (s)
>>> To: "dnorton at mindspring.com" , "A friendly
>>> place to get answers to even the most basic questions about Squeak."
>>>
>>> Message-ID: <3B1C3417-8C08-4CB9-844B-E6D28A51C0F1 at gmail.com>
>>> Content-Type: text/plain; charset="us-ascii"
>>>
>>> Hi Dan,
>>>
>>> That doesn't sound quite right.
>>>
>>> #perform:orSendTo: is probably overridden in Browser, but... have you looked to see if there's an implementation of it on Object or maybe ProtoObject or something like that?
>>>
>>> I'm pretty sure that #perform: and cousins are usually general.
>>>
>>> Not sure (on a cellphone) without looking at an actual running system, but try looking up the inheritance chain for another implementation of the same selector. That might help.
>>>
>>> Let me know either way, when I get back to a real computer I'll look into it for you if you don't get it figured out by then.
>>>
>>> Good hunting!
>>>
>>> Casey
>>>
>>>> On Nov 25, 2014, at 5:30 PM, wrote:
>>>>
>>>> An inspector for the menu item "accept (s)" reveals a selector of "#perform:orSendTo:" which is implemented in Browser.
>>>>
>>>> I want to follow the code and I put a halt in "#perform:orSendTo:" but the debugger never opened. What gives?
>>>>
>>>>
>>>>
>>>> - Dan
>>>>
>>>> _______________________________________________
>>>> Beginners mailing list
>>>> Beginners at lists.squeakfoundation.org
>>>> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>> _______________________________________________
>> Beginners mailing list
>> Beginners at lists.squeakfoundation.org
>> http://lists.squeakfoundation.org/mailman/listinfo/beginners
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>
> _______________________________________________
> Beginners mailing list
> Beginners at lists.squeakfoundation.org
> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>
>
> End of Beginners Digest, Vol 102, Issue 14
> ******************************************

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