1 files changed, 10 insertions, 0 deletions

diff --git a/src/client/ui.rs b/src/client/ui.rs
index 6161166..ca001c2 100644
--- a/src/client/ui.rs
+++ b/src/client/ui.rs
@@ -261,6 +261,16 @@ pub fn terminal_too_small(columns: u16, rows: u16) -> Option<String> {
     ))
 }
 
+/// One-line warning for a terminal that shrank while the client is running.
+pub fn terminal_size_warning(columns: u16, rows: u16) -> Option<String> {
+    if columns >= MIN_COLUMNS && rows >= MIN_ROWS {
+        return None;
+    }
+    Some(format!(
+        "WARNING: terminal is {columns}x{rows}; zagan.bet needs at least {MIN_COLUMNS}x{MIN_ROWS}. Resize to fit."
+    ))
+}
+
 /// Render remembered hosts.
 ///
 /// Two addresses that present the same certificate key are the same server, so