From de14b8418f74856d00717f743412d1d6b06b53c1 Mon Sep 17 00:00:00 2001
From: Julien Calixte <julien.calixte@theodo.com>
Date: Sun, 5 Jul 2026 17:57:29 +0200
Subject: [PATCH] feat(editor): use ISO-8859-15 font for accented glyphs
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Swap the mono font from the ascii subset to iso_8859_15 (Latin-9) so
à é ê ç … œ € have glyphs. Cell size is identical, so ASCII rendering is
byte-for-byte unchanged; groundwork for v0.2.5 international input.
---
 firmware/src/editor.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/firmware/src/editor.rs b/firmware/src/editor.rs
index 0259972..1af89e0 100644
--- a/firmware/src/editor.rs
+++ b/firmware/src/editor.rs
@@ -7,7 +7,10 @@
 //! on the logical (`\n`-delimited) buffer; word-wrapping and scrolling are a
 //! render-time concern handled by [`Editor::draw`].
 
-use embedded_graphics::mono_font::ascii::{FONT_6X10, FONT_10X20};
+// ISO-8859-15 (Latin-9) rather than the ascii subset: same glyph cells, but it
+// carries the accented Latin glyphs (à é ê ç … plus œ €) that international
+// input will emit. ASCII rendering is byte-for-byte unchanged.
+use embedded_graphics::mono_font::iso_8859_15::{FONT_6X10, FONT_10X20};
 use embedded_graphics::mono_font::MonoTextStyle;
 use embedded_graphics::pixelcolor::BinaryColor;
 use embedded_graphics::prelude::*;