RE: drawing lines (help please)

["Hugues Bernard" <hbernard gynov org>]

> > >     I'm finding it hard to find a simple example of drawing coloured
> > > lines.

<snip>

> > 1. Create a GdkGC (say mygc)
> > 2. Create and allocate a GdkColor
> > 3. Assign it to the foreground
<snip>
> > NB: if it doesnt help you, tell me, I had code example, but not 
> right now ;-)
> 
> I would like that help if you can find it. Thanks.
> Mike

See below.
this is modified from the scribble-simple example
(it draws a rectangle, but I think it s not so hard to adapt ;-)

Ciao

Hugues

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Hugues Bernard
hbernard gynov org http://gynov.org
__

static void
draw_brush (GtkWidget *widget, gdouble x, gdouble y)
{
  GdkRectangle update_rect;
/*added*/
  GdkGC *temp_gc;
  GdkColor color;

  /* RGB value 0 <> 65535 */
  color.red = 40000;
  color.green = 20000;
  color.blue = 10000;
/*/added*/

  update_rect.x = x - 5;
  update_rect.y = y - 5;
  update_rect.width = 10;
  update_rect.height = 10;

/*added*/
  temp_gc = gdk_gc_new(widget->window);
  gdk_color_alloc(gdk_window_get_colormap(widget->window),&color);
  gdk_gc_set_foreground(temp_gc,&color);
/*/added*/
  
  gdk_draw_rectangle (pixmap,
/*modified*/      temp_gc,
		      TRUE,
		      update_rect.x, update_rect.y,
		      update_rect.width, update_rect.height);
  gtk_widget_draw (widget, &update_rect);

/*added*/
  gdk_gc_unref(temp_gc);
/*/added*/
}