Add cairo_show_text_glyphs API

New public API:

	cairo_text_cluster_t
	cairo_has_show_text_glyphs()
	cairo_show_text_glyphs()

Add accompanying gstate and surface functions, and surface backend methods.
No backends implement them just yet.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/cairo-misc.c b/src/cairo-misc.c
index 30686a01..71338bff 100644
--- a/src/cairo-misc.c
+++ b/src/cairo-misc.c
@@ -111,6 +111,8 @@ cairo_status_to_string (cairo_status_t status)
 	return "error occurred in a user-font callback function";
     case CAIRO_STATUS_NEGATIVE_COUNT:
 	return "negative number used where it is not allowed";
+    case CAIRO_STATUS_INVALID_CLUSTERS:
+	return "input clusters do not represent the accompanying text and glyph arrays";
     }
 
     return "<unknown error status>";