From c31166c08781466b4dc42367ded8be67822f0d98 Mon Sep 17 00:00:00 2001
From: zach <zach@brohn.se>
Date: Thu, 4 Jun 2026 14:53:05 +0200
Subject: [PATCH] repaint when cursor moves

---
 src/terminal.rs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/terminal.rs b/src/terminal.rs
index dc5aa9d..3220c4c 100644
--- a/src/terminal.rs
+++ b/src/terminal.rs
@@ -1443,16 +1443,19 @@ impl Handler for Terminal {
                 if self.cursor_col > 0 {
                     self.cursor_col -= 1;
                 }
+                self.mark_line_dirty(self.cursor_row);
             }
             0x09 => {
                 let next_tab = (self.cursor_col / 8 + 1) * 8;
                 self.cursor_col = next_tab.min(self.cols - 1);
+                self.mark_line_dirty(self.cursor_row);
             }
             0x0A | 0x0B | 0x0C => {
                 self.advance_row();
             }
             0x0D => {
                 self.cursor_col = 0;
+                self.mark_line_dirty(self.cursor_row);
             }
             _ => {}
         }
@@ -1712,6 +1715,7 @@ impl Handler for Terminal {
                     if self.origin_mode { self.scroll_top } else { 0 };
                 self.cursor_row =
                     self.cursor_row.saturating_sub(n).max(min_row);
+                self.mark_line_dirty(self.cursor_row);
             }
             'B' => {
                 let n = params.get(0, 1).max(1) as usize;
@@ -1721,6 +1725,7 @@ impl Handler for Terminal {
                     self.rows - 1
                 };
                 self.cursor_row = (self.cursor_row + n).min(max_row);
+                self.mark_line_dirty(self.cursor_row);
             }
             // Cursor Forward
             'C' => {
@@ -1733,11 +1738,13 @@ impl Handler for Terminal {
                     old_col,
                     self.cursor_col
                 );
+                self.mark_line_dirty(self.cursor_row);
             }
             // Cursor Back
             'D' => {
                 let n = params.get(0, 1).max(1) as usize;
                 self.cursor_col = self.cursor_col.saturating_sub(n);
+                self.mark_line_dirty(self.cursor_row);
             }
             'E' => {
                 let n = params.get(0, 1).max(1) as usize;
@@ -1748,6 +1755,7 @@ impl Handler for Terminal {
                 };
                 self.cursor_col = 0;
                 self.cursor_row = (self.cursor_row + n).min(max_row);
+                self.mark_line_dirty(self.cursor_row);
             }
             'F' => {
                 let n = params.get(0, 1).max(1) as usize;
@@ -1756,6 +1764,7 @@ impl Handler for Terminal {
                 self.cursor_col = 0;
                 self.cursor_row =
                     self.cursor_row.saturating_sub(n).max(min_row);
+                self.mark_line_dirty(self.cursor_row);
             }
             // Cursor Horizontal Absolute (CHA)
             'G' => {
@@ -1767,6 +1776,7 @@ impl Handler for Terminal {
                     self.cursor_col,
                     old_col
                 );
+                self.mark_line_dirty(self.cursor_row);
             }
             // Cursor Position
             'H' | 'f' => {
@@ -1780,6 +1790,7 @@ impl Handler for Terminal {
                     self.cursor_row = (row - 1).min(self.rows - 1);
                 }
                 self.cursor_col = (col - 1).min(self.cols - 1);
+                self.mark_line_dirty(self.cursor_row);
             }
             // Erase in Display
             'J' => {
@@ -2177,6 +2188,7 @@ impl Handler for Terminal {
         } else {
             self.cursor_row += 1;
         }
+        self.mark_line_dirty(self.cursor_row);
     }
 
     fn newline(&mut self) {
@@ -2186,6 +2198,7 @@ impl Handler for Terminal {
         } else {
             self.cursor_row += 1;
         }
+        self.mark_line_dirty(self.cursor_row);
     }
 
     fn reverse_index(&mut self) {
@@ -2194,6 +2207,7 @@ impl Handler for Terminal {
         } else {
             self.cursor_row -= 1;
         }
+        self.mark_line_dirty(self.cursor_row);
     }
 
     fn set_tab_stop(&mut self) {