From e6e737ac0bf9a5be729b5c71f3a582355432d041 Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Wed, 16 Mar 2022 17:00:17 +0000
Subject: Add an option to set the character used for unused areas of the
 terminal, GitHub issue 3110.

---
 window.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'window.c')

diff --git a/window.c b/window.c
index 2ca3833c..b14a9c60 100644
--- a/window.c
+++ b/window.c
@@ -331,6 +331,7 @@ window_create(u_int sx, u_int sy, u_int xpixel, u_int ypixel)
 	w->id = next_window_id++;
 	RB_INSERT(windows, &windows, w);
 
+	window_set_fill_character(w);
 	window_update_activity(w);
 
 	log_debug("%s: @%u create %ux%u (%ux%u)", __func__, w->id, sx, sy,
@@ -362,6 +363,7 @@ window_destroy(struct window *w)
 		event_del(&w->offset_timer);
 
 	options_free(w->options);
+	free(w->fill_character);
 
 	free(w->name);
 	free(w);
@@ -1589,3 +1591,20 @@ window_pane_update_used_data(struct window_pane *wp,
 		size = EVBUFFER_LENGTH(wp->event->input) - used;
 	wpo->used += size;
 }
+
+void
+window_set_fill_character(struct window *w)
+{
+	const char		*value;
+	struct utf8_data	*ud;
+
+	free(w->fill_character);
+	w->fill_character = NULL;
+
+	value = options_get_string(w->options, "fill-character");
+	if (*value != '\0' && utf8_isvalid(value)) {
+		ud = utf8_fromcstr(value);
+		if (ud != NULL && ud[0].width == 1)
+			w->fill_character = ud;
+	}
+}
-- 
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