[pango/pango2: 55/135] layout iter: Add docs

[Matthias Clasen <matthiasc src gnome org>]

commit 0fba4f418f26c2186df8fa570a54a6b12b6b1689
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jan 24 14:42:52 2022 -0500

    layout iter: Add docs

 pango/pango-layout-iter.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
---
diff --git a/pango/pango-layout-iter.c b/pango/pango-layout-iter.c
index 91d37b46..93941ac2 100644
--- a/pango/pango-layout-iter.c
+++ b/pango/pango-layout-iter.c
@@ -6,6 +6,20 @@
 #include "pango-layout-line-private.h"
 #include "pango-layout-run-private.h"
 
+/**
+ * PangoLayoutIter:
+ *
+ * A `PangoLayoutIter` can be used to iterate over the visual
+ * extents of a `PangoLayout` or `PangoLines`.
+ *
+ * To obtain a `PangoLayoutIter`, use [method@Pango.Layout.get_iter]
+ * or [method@Pango.Lines.get_iter].
+ *
+ * The `PangoLayoutIter` structure is opaque, and has no user-visible
+ * fields.
+ */
+
+
 /* {{{ PangoLayoutIter implementation */
 
 struct _PangoLayoutIter