Re: [gtk-list] Re: Problem with ColorContexts

[Rob Browning <rlb cs utexas edu>]

Federico Mena <federico@nuclecu.unam.mx> writes:

> Hmmm.  Could you please show me the code where you allocate the colors
> and hand them to the clist?

Here's where I set up the stuff:

static GdkColor split_row_color;
static GdkColorContext *color_context = NULL;

static int
allocate_colors() {

  if(!color_context) {
    gint n;
    
    color_context =
      gdk_color_context_new(gtk_widget_get_visual(main_window),
                            gtk_widget_get_colormap(main_window));
    assert(color_context);
    
    split_row_color.pixel = 0; /* this is important! */
    split_row_color.red   = 60000; /* Just a test */
    split_row_color.green = 0;
    split_row_color.blue  = 0;

    n = 0; /* this is important! */
    
    gdk_color_context_get_pixels (color_context,
                                  &split_row_color.red,
                                  &split_row_color.green,
                                  &split_row_color.blue,
                                  1, &split_row_color.pixel, &n);
    
    assert(n == 1);

  }
  return(0);
}

Then elsewhere (I know this gets executed because the list gets filled
in):

  allocate_colors();
  ...
  gint new_row = gtk_clist_append(GTK_CLIST(clist), rowstrs); 
  gtk_clist_set_background(GTK_CLIST(clist),
                           new_row, &split_row_color);

Thanks

-- 
Rob Browning <rlb@cs.utexas.edu>
PGP fingerprint = E8 0E 0D 04 F5 21 A0 94  53 2B 97 F5 D6 4E 39 30