[Newbies] SampleCode-ImageViewer

Edgar J De Cleene edgardec2005 at gmail.com
Sat Jun 23 18:19:43 UTC 2007

On 23/06/2007, at 13:51, Wade Scholine wrote:

> This is a question about the sample that was posted here last  
> October, at
>   http://lists.squeakfoundation.org/pipermail/beginners/2006- 
> October/001238.html
> I am not able to make it work. I was able to file in the code and  
> start an instance from a workspace with 'SampleImageViewerMorph  
> new.' I click on the 'dir' button in the upper left hand corner of  
> the resulting Image Viewer Morph window, and that summons a  
> directory browser UI that I can navigate to a directory that has  
> jpgs in it. ( e.g., "C:\Documents and Settings\wades\My Documents 
> \My Pictures\rocks5"). When I hit the 'accept' button in the  
> directory browser, it goes away and the path to the directory I  
> picked goes into the location bar or whatever you'd call it in the  
> Image Viewer Morph window. A balloon comes up, saying 'When I'm  
> populated, you can click on a file to load it.' Nothing happens.
> If I try hitting the little '>' button by the location bar on the  
> Image View Morph window, I get an "error out of bounds." If I debug  
> that, I see that the error happens in SampleImageLoader>>loadImage:  
> it appears that the SampleImageLoader's collection members are empty.
> I tried making an instance of SampleImageLoader from the workspace,  
> thinking I could manually initialize it and load the image list.
> a _ SampleImageLoader new.
> a inspect.
> (open a transcript)
> a loadImagesBelow: 'c:\stuff\rpics'
> The transcript shows "Entering DosFileDirectory on 'c:\stuff 
> \rpics'" and then nothing else happens.
> Should any of this work?
> I am using:
> Squeak3.9
> latest update: #7067
> Current Change Set: Unnamed1
>  OK
> On WinXP SP2.
> _______________________________________________
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> Beginners at lists.squeakfoundation.org
> http://lists.squeakfoundation.org/mailman/listinfo/beginners

I  file the code and could see is working.

SampleImageViewerMorph new on a Workspace
Or select the class in the Sustem Browser and alt - click for "more"  
and then "sample instace"

Could be enhanced to read all the picts formats and not only jpg.

Go to Utilities >> graphicsFileSuffixes.
Investigate "senders"
Have fun !
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