[PATCH 2/3] feedback: change the appearance of anchors when they will be saved

When an anchor is present on the first line of the buffer, make any
anchors appear as little blocks (￭) instead of the usual diamonds (⬥).

This different appearance lets the user know whether a placed anchor
anywhere in the file will be saved or not -- when line numbers are
active.  (In an 8-bit locale an = replaces the usual +).
---
 src/search.c | 5 ++++-
 src/winio.c  | 6 ++++--
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/search.c b/src/search.c
index 63e46e05..677b4061 100644
--- a/src/search.c
+++ b/src/search.c
@@ -1003,7 +1003,10 @@ void put_or_lift_anchor(void)
 {
 	openfile->current->has_anchor = !openfile->current->has_anchor;
 
-	update_line(openfile->current, openfile->current_x);
+	if (openfile->current != openfile->filetop)
+		update_line(openfile->current, openfile->current_x);
+	else
+		refresh_needed = TRUE;
 
 	if (openfile->current->has_anchor)
 		statusline(REMARK, _("Placed anchor"));
diff --git a/src/winio.c b/src/winio.c
index 3f05dc11..fd7f27b2 100644
--- a/src/winio.c
+++ b/src/winio.c
@@ -2558,10 +2558,12 @@ void draw_row(int row, const char *converted, linestruct *line, size_t from_col)
 		if (line->has_anchor && (from_col == 0 || !ISSET(SOFTWRAP)))
 #ifdef ENABLE_UTF8
 			if (using_utf8())
-				wprintw(midwin, "\xE2\xAC\xA5");  /* black medium diamond */
+				wprintw(midwin, openfile->filetop->has_anchor ?
+						"\xEF\xBF\xAD" :  /* halfwidth black square */
+						"\xE2\xAC\xA5");  /* black medium diamond */
 			else
 #endif
-				wprintw(midwin, "+");
+				wprintw(midwin, openfile->filetop->has_anchor ? "=" : "+");
 		else
 #endif
 			wprintw(midwin, " ");
-- 
2.48.1