Re: BonoboItemContainer confusion

[Owen Fraser-Green <owen discobabe net>]

Hi,

Ahhhh... suddenly a lot of things fall into place.

Thanks for your help.

Cheers,
Owen


On 26 Apr 2001 20:06:48 -0400, Peter Williams wrote:
> On 27 Apr 2001 01:43:57 +0200, Owen Fraser-Green wrote:
> > Hi,
> > 
> > I'm a little confused as to the purpose and status of BonoboItemContainer. The
> > IDL comment reads:
> > 
> >   bonobo-item-container.idl: Implements a generic container for objects
> > 
> ....
> 
> I'm not offering the Official Answer, but I believe BonoboItemContainer
> is safe to use. Note that bonobo-item-handler.{c,h} do exist, and they
> seem to be a simple BonoboObject (ie, C, not IDL) interface for
> implementing a Bonobo::ItemContainer. bonobo-item-container.{c,h} also
> exist and I'm not sure if they're deprecated or intended for
> Bonobo::ItemContainer clients.
> 
> I know the "big use" for Bonobo::ItemContainer is monikers. If your
> object implements Bonobo::ItemContainer, then you will automagically be
> able to take advantage of the builtin "item:" or "!" moniker.
> 
> Ie, if you write a moniker "myloader" which opens some kind of
> structured file and implements a Bonobo::ItemContainer, then your code
> automatically supports monikers like:
> 
>     "myloader:/path/to/structured/file!sectionname"
> 
> (Your moniker is resolved for ItemContainer, then the "item" moniker
> uses it to get the item name 'sectionname') The canonical example is:
> 
>     "gnumeric:/path/to/file.gnumeric!workbook1!sheet2!cellA1"
> 
> The idea is that the Bonobo_Object returned by the gnumeric moniker
> supports a ItemContainer that produces Gnumeric_Documents (or whatever).
> The Gnumeric_Document implements an ItemContainer that produces
> Gnumeric_Workbooks (or whatever again). The Gnumeric_Workbook implements
> an ItemContainer that produces Gnumeric_Sheets, etc. I have no clue if
> you're interested in monikers, but I personally think this kind of power
> is what makes monikers the Coolest Thing Ever (TM), and is why Bonobo is
> wonderful.
> 
> --
> Peter Williams     peter newton cx / peterw ximian com
> 
> "Why should I have to change my name? He's the one who 
> sucks!"                              -- Michael Bolton
> 

-- 
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Owen  Fraser-Green             "Hard work never killed anyone,
owen discobabe net              but why give it a chance?"
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