Drawing with pango

["Wolf S. Kappesser" <Wolf.St.Kappesser@gmx.de>]

Hello,

I search (and try hard ) to run this pango/gtk+ "application". Its only
should put a string to a pango-layout.
It didn't work. (Nothing will happen on the graphicwindow...)

Its a main.c and the eventhandler for expose from my interface.c
If needed, I will post the glade3 XML too.

Big thanks for any helps.
Best regard


CODE: main.c
	gtk_set_locale ();
	gtk_init (&argc, &argv);
	
	gxml = glade_xml_new (GLADE_FILE, NULL, NULL);
	
	
	glade_xml_signal_autoconnect (gxml);
	
	window = glade_xml_get_widget (gxml, "window");
	fixed = glade_xml_get_widget (gxml, "fixed1");
	connect = glade_xml_get_widget (gxml, "connect");
	console = glade_xml_get_widget (gxml, "console");
	da = glade_xml_get_widget ( gxml, "drawingarea1");
	
	....
	<snip/>
	....

	g_signal_connect (window, "expose-event",
				G_CALLBACK (on_expose_event), da);
	
	
	

	gtk_widget_show (window);
	
	gtk_main ();

	
**********************************************************
	

CODE: interface.c
FUNCTION: on_expose_event


gboolean
on_expose_event(GtkWidget * widget, GdkEvent* event, GtkWidget * label)
{
	PangoContext *ct;
	PangoLayout  *layout;
	PangoFontDescription * font;
		
	gint width, height;

	// prepare graphicdevice and output	

	font =  pango_font_description_from_string ("Courier,Medium 8");
	ct = gtk_widget_get_pango_context(widget);
	layout  = pango_layout_new (ct);
	g_object_unref (ct);

	pango_layout_context_changed(layout);
	pango_layout_set_font_description (layout, font);
    	pango_layout_set_text (layout, "Some UTF-8 text", -1);

	//pango_layout_get_size (layout, &width, &height);
	width = 50;
	height = 50;
	
	g_return_val_if_fail (widget != NULL, FALSE);
	
	/* Clear the text from the background of the widget. */
	//gdk_window_clear_area (widget->window, 0, 0, widget->allocation.width,
	//	widget->allocation.height);
	
	/* Draw the PangoLayout on the widget, which is the message text. */
	gdk_draw_layout (widget->window ,
		widget->style->fg_gc[widget->state] ,
		widget->allocation.width ,
		widget->allocation.height ,
		layout);
	return TRUE;
}