Re: Gdk.color GTree.column ?

Eddy2 <[email protected]>
Newsgroups gmane.comp.lang.ocaml.lib.gtk
Message-ID <[email protected]>
Hi,

If you *really* want to use Gdk.color I cannot help you. But if you just
want to add colors to your treeview, then I have a solution : you may use a
#RRGGBB string in conjunction with "background" property. Here is a little
working example :

-----
let cols = new GTree.column_list
let text = cols#add Gobject.Data.string
let bg_color = cols#add Gobject.Data.string (* We use the well-known string
type *)
let model = GTree.list_store cols

let cell = GTree.cell_renderer_text [`WEIGHT `BOLD; `FOREGROUND "white"]

let vcol = 
  let vcol = GTree.view_column ~title:"Exemple" () in
  vcol#pack cell;
  vcol#add_attribute cell "text" text;
  vcol#add_attribute cell "background" bg_color;
  vcol

let window = GWindow.window
  ~title:"Color Demo"
  ~position:`CENTER 
  ~width:200
  ~height:550 ()

let view =
  let view = GTree.view ~model ~packing:window#add () in
  view#append_column vcol;
  view

let to_string r g b = Printf.sprintf "#%02x%02x%02x" r g b

let _ =
  window#connect#destroy GMain.quit;
  for i = 0 to 20 do
    let j = 5 * i in
    let row = model#append () in
    model#set ~row ~column:text (Printf.sprintf "Blue %i%%" j);
    model#set ~row ~column:bg_color (to_string 0 0 j)
  done;
  window#show ();
  GMain.main ()
-----

Hope this helps,
Eddy
-- 
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