Message-ID: <4461A1A1.30508 at laposte.net>
Date: Wed, 10 May 2006 10:17:37 +0200
From: Matthieu Dubuget <matthieu.dubuget at laposte.net>
Reply-To: matthieu.dubuget at laposte.net
MIME-Version: 1.0
To: lablgtk at math.nagoya-u.ac.jp
Subject: GTree.view: use of attributes
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Hello,

I'm trying to display datas using GTree.

I would like to be able to adapt every row, depending on some values
stored in different columns of the model. I achieved this using the
set_cell_data_func method of view_column.

Is there something more direct, to achieve the same effect?

I tried to use:

val view_column :
 ?title:string ->
 ?renderer:(#cell_renderer * (string * 'a column) list) ->
 unit -> view_column

but it does not work if the columns I try to connect to the renderer
properties are heterogeneous: for example, I was not able to connect the
`FOREGROUND_SET property to one column, and in the same time, the `TEXT
property to another, because the types of the two columns differs.

Inside view_column class, there is

 method add_attribute :
    'a 'b. (#cell_renderer as 'a) -> string -> 'b column -> unit =
      fun crr attr col ->
        TreeViewColumn.add_attribute obj crr#as_renderer attr col.index

that (if I understand well) should help to do what I need?

Is there any good reason not to export this function in gTree.mli?

Thanks in advance

Matthieu Dubuget