From 629c1662a48c2b72b84fd43d5bb64aa41e66a87c Mon Sep 17 00:00:00 2001
From: Fabian Greffrath <fabian@greffrath.com>
Date: Tue, 22 Aug 2023 20:25:06 +0200
Subject: [PATCH] empty messages clear the whole widget

---
 src/hu_lib.c   | 10 ++++++++++
 src/hu_lib.h   |  1 +
 src/hu_stuff.c |  6 ++++++
 3 files changed, 17 insertions(+)

diff --git a/src/hu_lib.c b/src/hu_lib.c
index 63a4474e..506d4f72 100644
--- a/src/hu_lib.c
+++ b/src/hu_lib.c
@@ -86,6 +86,16 @@ void HUlib_clear_cur_line (hu_multiline_t *const m)
   HUlib_clear_line(m->lines[m->curline]);
 }
 
+void HUlib_clear_all_lines (hu_multiline_t *const m)
+{
+  int i;
+
+  for (i = 0; i < m->numlines; i++)
+  {
+    HUlib_clear_line(m->lines[i]);
+  }
+}
+
 // [FG] add single char to line, increasing its length but not its width
 
 static boolean add_char_to_line(hu_line_t *const t, const char ch)
diff --git a/src/hu_lib.h b/src/hu_lib.h
index 20f5aac2..36e87e82 100644
--- a/src/hu_lib.h
+++ b/src/hu_lib.h
@@ -122,6 +122,7 @@ void HUlib_reset_align_offsets (void);
 
 void HUlib_clear_line (hu_line_t *const l);
 void HUlib_clear_cur_line (hu_multiline_t *const m);
+void HUlib_clear_all_lines (hu_multiline_t *const m);
 
 void HUlib_add_string_to_cur_line (hu_multiline_t *const m, const char *s);
 void HUlib_add_strings_to_cur_line (hu_multiline_t *const m, const char *prefix, const char *s);
diff --git a/src/hu_stuff.c b/src/hu_stuff.c
index 7fc983ba..9d967b00 100644
--- a/src/hu_stuff.c
+++ b/src/hu_stuff.c
@@ -580,6 +580,8 @@ void HU_Start(void)
   HUlib_init_multiline(&w_message, message_list ? hud_msg_lines : 1,
                        &doom_font, colrngs[hudcolor_mesg],
                        &message_on, NULL);
+  // [FG] clear messages
+  HUlib_clear_all_lines(&w_message);
 
   // create the secret message widget
   HUlib_init_multiline(&w_secret, 1,
@@ -1532,6 +1534,10 @@ void HU_Ticker(void)
     //post the message to the message widget
     HUlib_add_string_to_cur_line(&w_message, plr->message);
 
+    // [FG] empty messages clear the whole widget
+    if (plr->message[0] == '\0')
+      HUlib_clear_all_lines(&w_message);
+
     // clear the message to avoid posting multiple times
     plr->message = 0;