From cf0d05d54a54279cf4f543c4bb9c674c66b54e57 Mon Sep 17 00:00:00 2001
From: Andreas Kling <awesomekling@gmail.com>
Date: Sun, 23 Jun 2019 15:34:36 +0200
Subject: [PATCH] Terminal: Don't compute buffer positions outside the possible
 area.

---
 Applications/Terminal/Terminal.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Applications/Terminal/Terminal.cpp b/Applications/Terminal/Terminal.cpp
index 45e0b0b04c..f1cc8cfebc 100644
--- a/Applications/Terminal/Terminal.cpp
+++ b/Applications/Terminal/Terminal.cpp
@@ -1185,6 +1185,14 @@ BufferPosition Terminal::buffer_position_at(const Point& position) const
     auto adjusted_position = position.translated(-(frame_thickness() + m_inset), -(frame_thickness() + m_inset));
     int row = adjusted_position.y() / m_line_height;
     int column = adjusted_position.x() / font().glyph_width('x');
+    if (row < 0)
+        row = 0;
+    if (column < m_columns)
+        column = 0;
+    if (row >= m_rows)
+        row = m_rows - 1;
+    if (column >= m_columns)
+        column = m_columns - 1;
     return { row, column };
 }