Re: Two warnings when creating a TreeStore

["Andrew E. Makeev" <andrew solvo ru>]

José Alburquerque пишет:
> José Alburquerque wrote:
> > One weird question on this:  Can a pointer to a class be used in a 
> > TreeModelColumn<..> of a TreeColumnRecord class (such as 
> > TreeModelColumn<MyBaseClass*>)?  I'm thinking of using a pointer to my 
> > class instead of the class itself.
> >
> > -Jose
> >   
>
> May I ask one more question on this?  I thought my warnings all went 
> away, but they went away because I used two columns (a ustring and a 
> MyBaseClass*) for the treeStore and only added the ustring column to the 
> TreeView.  When I added the BaseClass pointer column to the TreeView I 
> get one warning which repeats when the TreeView is "redrawn":
>
>     (gdvdauthor:7637): GLib-GObject-WARNING **: unable to set property
>     `text' of type `gchararray' from value of type
>     `glibmm__CustomPointer_P10DVDElement'
>
>
> I tested using a ustring pointer column and I get a similar warning 
> (which also repeats on "redraw"):
>
>     (gdvdauthor:6228): GLib-GObject-WARNING **: unable to set property
>     `text' of type `gchararray' from value of type
>     `glibmm__CustomPointer_PN4Glib7ustringE'
>
>
> Anyone understand how pointer columns produce warnings of this sort?  
> I'm sorry, I'm so new at this and I hope these are not frustrating 
> questions. :-(

As I wrote already, to handle "custom" TreeView columns you should implement custom CellRenderer either use SlotCellData callback to set "text" property from your column data manually. I guess, it should be described in TreeView tutor.

-andrew