Date: Tue, 14 Sep 2004 16:05:25 +0200 (CEST)
Message-Id: <20040914.160525.92586750.oandrieu at nerim.net>
To: maxence.guesdon at inria.fr
Cc: shoh at compiler.kaist.ac.kr, lablgtk at kaba.or.jp
Subject: Re: (Q) How to store "pixbuf" into GTree.model?
From: Olivier Andrieu <andrieu at ijm.jussieu.fr>
In-Reply-To: <20040914151922.733e64d0 at tintin.inria.fr>
References: <004e01c493e5$eb2c9d60$1501a8c0 at hama>
	<20040914151922.733e64d0@tintin.inria.fr>
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 > Maxence Guesdon <maxence.guesdon@inria.fr> [Tue, 14 Sep 2004 15:19:22 +0200]:
 > On Mon, 6 Sep 2004 16:47:56 +0900
 > "SooHyoung Oh" <shoh@compiler.kaist.ac.kr> wrote:
 > 
 > > 
 > > Could anyone help me to implement GTree.model
 > > which stores GdkPixbuf.pixbuf?
 > 
 > I have the same problem. I have
 > 
 > let cols = new GTree.column_list in
 > let colpix = cols#add Gobject.Data.pointer in

let colpix : GdkPixbuf.pixbuf GTree.column = cols#add Gobject.Data.gobject in

would is more likely to work (pixbufs are gobjects)

 > let renderer = (GTree.cell_renderer_pixbuf [], ["pixbuf", colpix]) in
 > let vcol = GTree.view_column ?title ~renderer () in
 > ...
 > and later :
 > let row = store#append () in
 > store#set ~row ~column: colpix myfavoritepixbuf
 > 
 > but i nothing is displayed and i get error messages:
 > (example:5375): GLib-GObject-WARNING **: unable to set property `pixbuf' of type
 > `GdkPixbuf' from value of type `gpointer'
 > 
 > (same with Gobject.Data.caml instead of Gobject.Data.pointer).
 > 
 > Does someone know what the Right Way to do this is ?

Anyway, the GTree code needs some fixing : right now it converts the
GTypes of the column list to fundamental types before creating the
GtkListStore of GtkTreeStore. It's wrong, I don't know why it does
this.

-- 
   Olivier