[gtk+/gtk-3-8] gtktextchild: replace hard-coded values by a macro

[Matthias Clasen <matthiasc src gnome org>]

commit fecd632e57989aae1f38f3bb7e97808a34caa936
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Wed Apr 3 00:27:50 2013 +0200

    gtktextchild: replace hard-coded values by a macro
    
    The macro already exists, so it's better to use it.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=700007

 gtk/gtktextchild.c |   11 ++++++-----
 1 files changed, 6 insertions(+), 5 deletions(-)
---
diff --git a/gtk/gtktextchild.c b/gtk/gtktextchild.c
index dd7d3a4..9fe5fda 100644
--- a/gtk/gtktextchild.c
+++ b/gtk/gtktextchild.c
@@ -101,7 +101,7 @@ pixbuf_segment_check_func (GtkTextLineSegment *seg,
   if (seg->next == NULL)
     g_error ("pixbuf segment is the last segment in a line");
 
-  if (seg->byte_count != 3)
+  if (seg->byte_count != GTK_TEXT_UNKNOWN_CHAR_UTF8_LEN)
     g_error ("pixbuf segment has byte count of %d", seg->byte_count);
 
   if (seg->char_count != 1)
@@ -201,7 +201,7 @@ child_segment_check_func (GtkTextLineSegment *seg,
   if (seg->next == NULL)
     g_error ("child segment is the last segment in a line");
 
-  if (seg->byte_count != 3)
+  if (seg->byte_count != GTK_TEXT_UNKNOWN_CHAR_UTF8_LEN)
     g_error ("child segment has byte count of %d", seg->byte_count);
 
   if (seg->char_count != 1)
@@ -232,9 +232,10 @@ _gtk_widget_segment_new (GtkTextChildAnchor *anchor)
 
   seg->next = NULL;
 
-  seg->byte_count = 3; /* We convert to the 0xFFFC "unknown character",
-                        * a 3-byte sequence in UTF-8
-                        */
+  /* We convert to the 0xFFFC "unknown character",
+   * a 3-byte sequence in UTF-8.
+   */
+  seg->byte_count = GTK_TEXT_UNKNOWN_CHAR_UTF8_LEN;
   seg->char_count = 1;
 
   seg->body.child.obj = anchor;