[squeakland] File error on open and sound reverb problem again

Mike Lee curiouslee at gmail.com
Sat Nov 12 13:02:14 EST 2011 

I stepped through again following your steps exactly. Pressing cmd-s
on my Macbook Pro running 10.6.7 and Etoys 4.1.1. inexplicably caused
the quoted string to disappear. I went ahead and saved the Etoys
project file, see screenshots:

http://www.flickr.com/photos/curiouslee/6337954306/sizes/o/in/photostream/

Upon returning to the SoundPlayer class in the code browser, the
original code is gone and replaced with different text.

The reverb persists.

To recap, others are telling me there may be a fix in 4.1.2 or 4.2,
but for now it seems like I need to find a resolution to the reverb
manually as I will be distributing 4.1.1 and 700 project files to 20
volunteers next Sunday.

This sound reverb issue is undoubtedly some legacy decision that now
must be persisted as a default because so many files expect the effect
to be present. But, like so many aspects of the grandfather clock that
Etoys is, it makes no sense. Imagine if a photo editing program tinted
your images pink by default because some developer years ago thought
that was cool. No other piece of authoring software I've encountered
since I started using graphical computers in 1985 puts a filter effect
on a media asset by default.

Mike

On Sat, Nov 12, 2011 at 6:19 AM, Bert Freudenberg <bert at freudenbergs.de> wrote:
> On 12.11.2011, at 11:15, Mike Lee wrote:
>
>> After some hours of reading and clicking around, I finally got to the
>> SoundPlayer initialize string in the class method.
>
> "diving into the byzantine bowels of Squeak Etoys and Smalltalk" - very courageous ;)
>
> A better way to open a Squeak Browser in Etoys is via the XO's "view source" key. No need to fiddle with preferences. On a Mac that's cmd-comma and on PC ctrl-comma.
>
>> I added the quotes closed everything up
>
> You need to press cmd-s / ctrl-s to "accept" the method (possibly you did but didn't mention it). It will ask for your initials (every change is logged with a time stamp and author).
>
>> and was not able to save the Etoys file due to an error writing the image file.
>
> You normally don't want to save the image file. On many systems you can't (as you discovered) because this modifies the Etoys application itself. That menu entry is in the developer's world menu (accessible by toggling the "etoy-friendly" preference you found). The view-source menu leaves these out, which is why we recommend using that.
>
>> Perhaps this is what you mean by
>> "attaching [the change] to the project," which I haven't a clue how to
>> do.
>
> You don't need to do anything special, as long as you edited the method while in the project that needs the change. Any method you accept in a project is added to that project's changeset automatically. You just need to save the project afterwards (and it will ask you if you want to include the changes).
>
>> See my screenshots:
>>
>> http://www.flickr.com/photos/curiouslee/6337002318/sizes/o/in/photostream/
>>
>> Mike
>
> Very nice, I could see exactly what you were doing (except I could not guess which OS you were on).
>
> - Bert
>
>> On Fri, Oct 21, 2011 at 6:32 PM, karl ramberg <karlramberg at gmail.com> wrote:
>>> I'm not sure what Halo changes Steve suggest...
>>> Fix is quite easy if you know your way around the Etoys system.
>>> Just comment out the SoundPlayer initialize in the class method, see below.
>>> A change set with this fix can be attached to the project.
>>>
>>> Karl
>>>
>>>
>>> SoundPlayer class>>startUpWithSound:
>>>  startUpWithSound: aSound
>>>       "Start up the player process."
>>>
>>> +       "SoundPlayer initialize."
>>> -       SoundPlayer initialize.
>>>       SoundPlayer
>>>               startPlayerProcessBufferSize: (BufferMSecs *
>>> SamplingRate) // 1000
>>>               rate: SamplingRate
>>>               stereo: Stereo
>>>               sound: aSound.
>>>
>>> On Fri, Oct 21, 2011 at 8:25 AM, Mike Lee <curiouslee at gmail.com> wrote:
>>>> Karl,
>>>>
>>>> Good to hear of the fix. If reverb is turned off in 4.2, or if I
>>>> change it in the world Halo as Steve suggests, should we expert that
>>>> the setting will be honored on prior versions--even if the file is
>>>> changed and resaved?
>>>>
>>>> Mike
>>>>
>>>> On Fri, Oct 21, 2011 at 2:20 AM, karl ramberg <karlramberg at gmail.com> wrote:
>>>>> I fixed an issue with reverb i that is included in Etoys 4.2.
>>>>> SoundPlayer initializes everytime it is started and the reverb is set
>>>>> to true every time.
>>>>>
>>>>> Karl
>>>>>
>>>>>
>>>>> On Fri, Oct 21, 2011 at 5:51 AM, Mike Lee <curiouslee at gmail.com> wrote:
>>>>>> Hi,
>>>>>>
>>>>>> The Lubuto Library Project to develop 700 Etoys lessons in Zambia is
>>>>>> finally nearing completion after a year of work by teachers and
>>>>>> students in Lusaka. There are 100 lessons in 7 Zambian languages plus
>>>>>> 700 sound files that have to be associated with a button in the files.
>>>>>>
>>>>>> Now we have have enlisted a group of Washington, D.C.-area volunteers
>>>>>> from the Special Libraries Association to help with a final finishing
>>>>>> pass at the files.
>>>>>>
>>>>>> Though all the files were authored on OLPC XO laptops in Sugar using
>>>>>> Etoys 3.x, we wish to do the final production on Etoys 4.1 on Mac and
>>>>>> PC depending on what the volunteer has. The finished files need to
>>>>>> open and function properly on Etoys 3.x and 4.x on all platforms.
>>>>>>
>>>>>> I have some initial questions regarding some problems working with the
>>>>>> files across different versions of  Etoys.
>>>>>>
>>>>>> 1) When I double-click to open the files from Zambia on Etoys 4.1 Mac,
>>>>>> I get an error message that prevents the file from loading and makes
>>>>>> it impossible to close Etoys without a force quit. I have seen this
>>>>>> error before when I open older project files on new builds of Etoys on
>>>>>> the XO. On Eotys 4.1 Mac, I can open the file from with Etoys. Here is
>>>>>> a screen shot:
>>>>>>
>>>>>> http://www.flickr.com/photos/curiouslee/6265581802/in/photostream
>>>>>>
>>>>>> And here is a sample file on Dropbox:
>>>>>>
>>>>>> http://dl.dropbox.com/u/16590498/Citonga%201%20Afabeti%201.003.pr
>>>>>>
>>>>>> 2) The sound reverb problem persists. Opening up the Etoys 4.1 Score
>>>>>> Player in the files authored in Etoys 3.x and clicking the Disable
>>>>>> Reverb button doesn't work.
>>>>>>
>>>>>> Thanks in advance to whomever can provide some guidance.
>>>>>>
>>>>>> Mike
>>>>>> _______________________________________________
>>>>>> squeakland mailing list
>>>>>> squeakland at squeakland.org
>>>>>> http://lists.squeakland.org/mailman/listinfo/squeakland
>>>>>>
>>>>>
>>>>
>>>
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