Drawing text into a drawing area with Pango

[Bryan Brown <bbrown saltmine radix net>]

Hello,

One part of my gtk/gnome application draws a text string onto a drawing
area at the spot where the user releases the left mouse button.  With gtk
1.2 I used gdk_draw_string, and in converting to gtk 2.x I understand that
I need to switch to using Pango.

Problem is, it's not clear to me what parts of the Pango context and
layout I need to initialize other than the text string.  Here's a snippet
of the code that I've tried so far:

=== begin code snippet ===

PangoContext *context;
PangoLayout  *layout;
gchar *text_buffer[] = "BLAH";
GdkEventButton *event;
GdkGC *gc;
gint x_start, y_start;

[snip]

   context = (PangoContext *) pango_context_new ();
   layout  = pango_layout_new (context);
   pango_layout_set_text (layout, text_buffer, -1);

[snip]

   x_start = event->x;
   y_start = event->y;

   gdk_draw_layout (drawing_area->window,
                    gc,
                    x_start,
                    y_start,
                    layout);

=== end code snippet ===

This causes an abend in the call to gdk_draw_layout when run, presumably
because I've not initialized some items in the Pango context and/or
layout.

What other items do I need to initialize?  I can't readily find some
"simple", sample code to illustrate the process, hence my appeal for help.

Sample code would be especially appreciated :-)

Thanks,

Bryan


*---------------------------------------------------------------
* Bryan Brown      <*>              bbrown radix net
* http://www.radix.net/~bbrown
*---------------------------------------------------------------