Drawing on gtk textview

["Soren Berg" <berg soren gmail com>]

I am trying to draw on a gtk textview's gdk window.  I have set the textview
as app paintable before initialization and done the drawing in a callback
for the expose event of the textview as suggested
here<http://mail.gnome.org/archives/gtk-app-devel-list/2007-June/msg00060.html>(
http://mail.gnome.org/archives/gtk-app-devel-list/2007-June/msg00060.html)
but have not had any luck.  Has this functionality been depreciated?  Do I
need to use composited windows somehow?  The previously linked discution
suggests that the OP got it working without them but he did not say how.

I would appricate any advice or information you could give me.

Thank you,
    -Soren Berg


Here is what I have so far but either it is not drawing or GTK is blindly
painting over my work:

CODE:
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#include <gtk/gtk.h>

gboolean
text_exposed (GtkWidget *widget, GdkEventExpose *event, GtkTextView *text)
{
    GdkColor color1, color2;
    GdkWindow *win;
    GdkGC *gc;

    win = gtk_text_view_get_window(text, GTK_TEXT_WINDOW_WIDGET);

    gc = gdk_gc_new(win);
    gdk_color_parse("red", &color1);
    gdk_gc_set_foreground(gc, &color1);
    gdk_color_parse("black", &color2);
    gdk_gc_set_background(gc, &color2);
    gdk_gc_set_fill(gc, GDK_SOLID);

    gdk_draw_rectangle(win, gc, TRUE, 1, 1, 50, 50);

    return FALSE;
}

int main(int argc, char **argv) {

    GtkWidget *window;
    GtkWidget *text;

    gtk_init(&argc, &argv);

    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    text = gtk_text_view_new();

    gtk_widget_set_app_paintable (GTK_WIDGET (text), TRUE);
    gtk_widget_set_app_paintable (GTK_WIDGET (window), FALSE);

    gtk_container_add(GTK_CONTAINER(window), text);
    gtk_widget_show_all(window);

  g_signal_connect (G_OBJECT(text), "expose-event",
G_CALLBACK(text_exposed), text);

    gtk_widget_set_size_request(window, 500, 400);
    gtk_main();
    return 0;
}


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