Re: Cursors in RDF (was Re: [Gzz] Structure proposal: RDF (+Xu))

[Benja Fallenstein]

Benja Fallenstein wrote:
> Benja Fallenstein wrote:
>
> > There's a cursor position, the focused node, shown in the middle of 
> > the screen. [...]
> > In addition to the focus, we keep a selected node. This is shown 
> > directly right of the focused note (if connected poswards) or directly 
> > left (if connected negwards).
>
>
> Just noted that literals make this a little more complicated. We want to 
> be able to focus literal nodes, yet we cannot make a link to them, 
> because they're without identity. From the semantics perspective, this 
> makes sense, but for editing, it makes things yet a little more difficult.
>
> Have to think about this. Possibly saying "the 'age' property literal of 
> person X is accursed" would be right, but there may be two such 
> literals... hmmmm.

Maybe you shouldn't be able to *accurse* literals anyway, only select 
them on the wheel. Moving onto them doesn't make a lot of sense, since 
they have only one backlink by definition... And to edit a number of 
properties, it would be more practical to

    Tab
    Benja
    Tab
    Down
    Tab
    Fallenstein
    Tab

than to

    Right
    Tab
    Benja
    Tab
    Left
    Down
    Right
    Tab
    Fallenstein
    Tab
    Left

...

However, we still need a way to select the literal as the current 
'rotation' of the wheel. If we just stored the literal itself, it would 
be possible that there are two different properties on an object with an 
equal literal value... so we'd probably need to store the property as 
well...

-b.