From 686405b7031736445eeb35206e4a797a8dd78d91 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Sun, 17 Nov 2019 12:13:36 +0100
Subject: [PATCH] term: new function: term_autowrap()

Adds a linebreak (+ scroll if necessary) if we're in a deferred wrap
and auto-margins are enabled.

Return true when we wrapped, false otherwise.
---
 terminal.c | 15 +++++++++++++++
 terminal.h |  1 +
 2 files changed, 16 insertions(+)

diff --git a/terminal.c b/terminal.c
index 5511eba5..ae52d7a2 100644
--- a/terminal.c
+++ b/terminal.c
@@ -1192,6 +1192,21 @@ term_reverse_index(struct terminal *term)
         term_cursor_up(term, 1);
 }
 
+bool
+term_autowrap(struct terminal *term)
+{
+    if (unlikely(term->cursor.lcf) && term->auto_margin) {
+        if (term->cursor.point.row == term->scroll_region.end - 1) {
+            term_scroll(term, 1);
+            term_cursor_to(term, term->cursor.point.row, 0);
+        } else
+            term_cursor_to(term, term->cursor.point.row + 1, 0);
+
+        return true;
+    } else
+        return false;
+}
+
 void
 term_reset_view(struct terminal *term)
 {
diff --git a/terminal.h b/terminal.h
index f5d7658f..bd12764c 100644
--- a/terminal.h
+++ b/terminal.h
@@ -360,6 +360,7 @@ void term_scroll_reverse_partial(
 
 void term_linefeed(struct terminal *term);
 void term_reverse_index(struct terminal *term);
+bool term_autowrap(struct terminal *term);
 
 void term_restore_cursor(struct terminal *term);