* pclouds (pclouds users sourceforge net) wrote:
> Hello
>
> I would like to use GtkListStore in this way:
> - Create GtkListStore with 1 column (G_TYPE_POINTER)
> - Register two functions get_value and set_value. When
> gtk_list_store_{get,set}_value is called, my {get,set}_value will be
> called, returning a value from the object in column 1 (or generate
> a value from the object), and set a value in the object, respectively.
> "Registering" may be connecting to signal or setting a function pointer
> in GtkListStore struct, ..
>
> * Or we can create GtkListStore with n+1 columns, and let GtkListStore
> check data types instead of {get,set}_value.
> - {get,set}_value contain a lot of switches to control each column data.
>
> Is there a way to do this without modifying GtkListStore or implementing
> a new GtkTreeModel?
I don't have an answer for you, but I need similar functionality in a
program I'm writing. Plus I need it for multi-column lists as well. Any
info you find out would be of use to me. Similarly, if I find anything
of use, I'll report it to the list for you.
> BTW, Gtk(2.0) uses gtktreedatalist to store a row. It would be better if
> GtkListStore allows developer to use another type instead of gtktreedatalist
> when they want.
Yes, especially if you want to work on data by column instead of by row.
--
.''`. Carl B. Constantine
: :' : duckwing duckwing ca
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