From bob.paddock at gmail.com  Sat Jun 21 09:39:08 2008
From: bob.paddock at gmail.com (Bob Paddock)
Date: Sat, 21 Jun 2008 09:39:08 -0400
Subject: [Alexandria-list] Crash when moving mouse
Message-ID: <200806210939.08592.bob.paddock@gmail.com>


I just rebuilt my Gentoo AMD64 box, and reinstalled Alexandria 6.3.
Alexandria starts up and looks ok, until I touch the mouse.
When I touch the mouse I get this:

Alexandria
/usr/lib64/ruby/site_ruby/1.8/alexandria/ui/iconview_tooltips.rb:101: [BUG] 
Segmentation fault
ruby 1.8.6 (2008-03-03) [x86_64-linux]

Suggestions?



-- 
                http://www.wearablesmartsensors.com/
 http://www.softwaresafety.net/ http://www.designer-iii.com/
                 http://www.unusualresearch.com/

From bob.paddock at gmail.com  Sat Jun 21 10:57:24 2008
From: bob.paddock at gmail.com (Bob Paddock)
Date: Sat, 21 Jun 2008 10:57:24 -0400
Subject: [Alexandria-list] Crash when moving mouse
In-Reply-To: <485D0D0B.1000601@cantab.net>
References: <200806210939.08592.bob.paddock@gmail.com>
	<485D0D0B.1000601@cantab.net>
Message-ID: <200806211057.25210.bob.paddock@gmail.com>

On Saturday 21 June 2008 10:15:39 am John Keeping wrote:

> There's a Gentoo bug for this here:
> http://bugs.gentoo.org/show_bug.cgi?id=215634
>
> The solution is to upgrade to dev-ruby/ruby-gtk2-0.16.0-r3 which is
> still keyworded ~amd64.

That fixed it.

Thank you.



-- 
                http://www.wearablesmartsensors.com/
 http://www.softwaresafety.net/ http://www.designer-iii.com/
                 http://www.unusualresearch.com/

From count-linux at flatline.de  Sat Jun 21 11:03:19 2008
From: count-linux at flatline.de (Andreas Kotes)
Date: Sat, 21 Jun 2008 17:03:19 +0200
Subject: [Alexandria-list] Generic barcode scanner / ISBN list import support
Message-ID: <20080621150319.GP16171@slop.flatline.de>

Hello,

hmm - I haven't worked with ruby or similiar so far, so I'm having
slight troubles in getting my head digging into the code ...

... could someone build a more generic/modular barcode scanner
integration so other implementations could happen in-line with the
current/planned architecture? I don't want to mess it up or duplicate
work.

My functional requirement would be getting list of (scanned) ISBNs into
Alexandria to catalog my library, but I'm willing to put some work in as
time permits ..

Br - and thanks for this nice software!

   Andreas

-- 
flatline IT services - A.Kotes - IT-consulting for ISPs & Internet services

From cathal.alexandria at gnostai.org  Sun Jun 22 13:49:31 2008
From: cathal.alexandria at gnostai.org (Cathal Mc Ginley)
Date: Sun, 22 Jun 2008 18:49:31 +0100
Subject: [Alexandria-list] Generic barcode scanner / ISBN list import
 support
In-Reply-To: <20080621150319.GP16171@slop.flatline.de>
References: <20080621150319.GP16171@slop.flatline.de>
Message-ID: <20080622184931.6b4cd7ff@matilda>

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On Sat, 21 Jun 2008 17:03:19 +0200
Andreas Kotes <count-linux at flatline.de> wrote:

> Hello,
> 

Hi, I'm Cathal and I wrote some of the current CueCat barcode code.

> hmm - I haven't worked with ruby or similiar so far, so I'm having
> slight troubles in getting my head digging into the code ...
> 
FYI, the relevant file to work from is lib/alexandria/scanners/cuecat.rb

> ... could someone build a more generic/modular barcode scanner
> integration so other implementations could happen in-line with the
> current/planned architecture? I don't want to mess it up or duplicate
> work.

Actually, grabbing input from an ordinary USB barcode scanner is quite
easy, and the work is pretty much trivial... except....

Well, barcode scanners present the barcode information as if it were
characters input rapidly from a keyboard. The trick is knowing when the
barcode has finished scanning (not all barcodes are the same length).
For an unmodified CueCat, it's easy, since we read in 4 base-64-encoded
strings separated by dots and terminated by a CRLF; we just tokenize
the whole input string using the dots, use the third and fourth fields,
and discard the rest. 

For other scanners, there may be a single terminating CRLF,
or two CRLFs, or no terminator at all - then there is no easy way to
tell when we can accept the data as a completed barcode (except, I was
thinking, by waiting for a pause in the rapid input of characters).

> 
> My functional requirement would be getting list of (scanned) ISBNs
> into Alexandria to catalog my library, but I'm willing to put some
> work in as time permits ..
> 
If your barcode scanner terminates scans with some newline character,
you could always just scan your ISBNs into a text file, and then import
a list of ISBNs. A crude workaround, but it should do the trick.

On the other hand, if you know exactly what characters your scanner
produces, (especially if it uses a newline terminator) it would be a
matter of a few minutes' work for me to write a GenericBarcodeScanner
class to work with it.

Try to find me on Jabber sometime, gnostai at gmail.com, usually evenings
and nights GMT.

> Br - and thanks for this nice software!
> 
>    Andreas
> 
Cheers, 
   -   C.

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