fix(train): the Record sheet's music choice on a row of its own, each label on one line

The segmented choice of Music, Metronome and Off sat in the music
tile's subtitle, beside its icon, where a phone of 360 dp wrapped
"Metronome" into "Metronom/e". It takes the list's whole width now,
under its title, each label on one line and scaled down where larger
text still leaves too little room. ADR 0030, D65.

Whats-New: The Record sheet's Music, Metronome and Off each fit on one line.
Whats-New-De: Musik, Metronom und Aus passen im Aufzeichnen-Blatt jeweils auf eine Zeile.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>

apps/train/halkyon_train_flutter/lib/src/feature/recording/widget/record_sheet.dart

@@ -307,33 +307,41 @@ class _RecordSheetState() extends State<_RecordSheet> {
         final chosen = _music == MusicChoice.music && !hasMusic
             ? MusicChoice.off
             : _music;
-        return ListTile(
+        // The choice on a row of its own, as wide as the list, each label on
-          leading: const Icon(LucideIcons.music),
+        // one line, smaller where it still doesn't fit: beside the icon, a
-          title: Text(l10n.recordMusic),
+        // phone wrapped "Metronome" in two (D65).
-          subtitle: Padding(
+        return Column(
-            padding: const EdgeInsets.only(top: 8),
+          crossAxisAlignment: CrossAxisAlignment.stretch,
-            child: SegmentedButton<MusicChoice>(
+          children: [
-              showSelectedIcon: false,
+            ListTile(
-              segments: [
+              leading: const Icon(LucideIcons.music),
-                ButtonSegment(
+              title: Text(l10n.recordMusic),
-                  value: MusicChoice.music,
-                  label: Text(l10n.recordMusicOn),
-                  enabled: hasMusic,
-                ),
-                ButtonSegment(
-                  value: MusicChoice.metronome,
-                  label: Text(l10n.recordMetronome),
-                ),
-                ButtonSegment(
-                  value: MusicChoice.off,
-                  label: Text(l10n.recordMusicOff),
-                ),
-              ],
-              selected: {chosen},
-              onSelectionChanged: (choice) =>
-                  setState(() => _music = choice.single),
             ),
-          ),
+            Padding(
+              padding: const EdgeInsets.fromLTRB(16, 0, 16, 8),
+              child: SegmentedButton<MusicChoice>(
+                showSelectedIcon: false,
+                segments: [
+                  ButtonSegment(
+                    value: MusicChoice.music,
+                    label: _OneLine(l10n.recordMusicOn),
+                    enabled: hasMusic,
+                  ),
+                  ButtonSegment(
+                    value: MusicChoice.metronome,
+                    label: _OneLine(l10n.recordMetronome),
+                  ),
+                  ButtonSegment(
+                    value: MusicChoice.off,
+                    label: _OneLine(l10n.recordMusicOff),
+                  ),
+                ],
+                selected: {chosen},
+                onSelectionChanged: (choice) =>
+                    setState(() => _music = choice.single),
+              ),
+            ),
+          ],
         );
       },
     );
@@ -478,3 +486,12 @@ Future<RecordingState> startedOrRefused(RecordingBloc bloc) =>
           state.bluetoothRefused ||
           state.rowerMissing,
     );
+
+/// A segment's label on one line, scaled down where it doesn't fit.
+class const _OneLine(final String text) extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) => FittedBox(
+    fit: BoxFit.scaleDown,
+    child: Text(text, maxLines: 1, softWrap: false),
+  );
+}

apps/train/halkyon_train_flutter/test/app/train_app_test.dart

@@ -3,6 +3,7 @@ import 'dart:io';
 
 import 'package:clock/clock.dart';
 import 'package:flutter/gestures.dart' show kLongPressTimeout;
+import 'package:flutter/rendering.dart' show RenderParagraph;
 import 'package:flutter_map/flutter_map.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:halkyon_app/halkyon_app.dart';
@@ -69,6 +70,7 @@ import 'package:halkyon_ui/halkyon_ui.dart';
 import 'package:http/http.dart' as http;
 import 'package:http/testing.dart';
 import 'package:latlong2/latlong.dart';
+import 'package:lucide_icons_flutter/lucide_icons.dart';
 import 'package:material_ui/material_ui.dart';
 
 import '../support/fake_firmware_relay.dart';
@@ -2193,6 +2195,43 @@ void main() {
       });
     });
 
+    testWidgets("the music's choice keeps each label on one line on a phone, "
+        'its text larger (D65)', (tester) async {
+      await withClock(Clock(() => at), () async {
+        await startRecording(tester);
+        tester.view.physicalSize = const Size(360, 800);
+        tester.platformDispatcher.textScaleFactorTestValue = 1.3;
+        addTearDown(tester.platformDispatcher.clearTextScaleFactorTestValue);
+        await tester.pumpAndSettle();
+        await tester.tap(startFor());
+        await tester.pumpAndSettle();
+        await tester.ensureVisible(find.text('Metronome'));
+        await tester.pumpAndSettle();
+
+        for (final label in ['Music', 'Metronome', 'Off']) {
+          final text = find.descendant(
+            of: find.byType(SegmentedButton<MusicChoice>),
+            matching: find.text(label),
+          );
+          final paragraph = tester.renderObject<RenderParagraph>(text);
+          final tops = paragraph
+              .getBoxesForSelection(
+                TextSelection(baseOffset: 0, extentOffset: label.length),
+              )
+              .map((box) => box.top)
+              .toSet();
+          expect(tops, hasLength(1), reason: '$label on one line');
+        }
+        // On a row of its own, as wide as the sheet's list less its margins.
+        final segments = tester.getRect(
+          find.byType(SegmentedButton<MusicChoice>),
+        );
+        final icon = tester.getRect(find.byIcon(LucideIcons.music));
+        expect(segments.left, lessThanOrEqualTo(icon.left));
+        expect(segments.top, greaterThan(icon.bottom));
+      });
+    });
+
     testWidgets("a ride offers the bike's sensors, found nearby and chosen; "
         "a run doesn't (D49)", (tester) async {
       platform.nearbyBike = [

docs/adr/0030-halkyon-train.md

@@ -1714,6 +1714,11 @@ Strava. What was found, 27 Oct:
     is on and Train allowed the precise one (Android's approximate location gives no
     GPS fixes).
 
+  - **The Record sheet's music on one line**: its choice (Music, Metronome, Off) sat in
+    the tile's subtitle beside the icon, where a phone wrapped "Metronome" in two. It
+    has a row of its own now, as wide as the list, each label on one line and scaled
+    down where it still doesn't fit (larger text), rather than shortened labels or a
+    menu, which would hide the choice behind a tap.
 ## Consequences
 
 - Train's sensors are one pattern: open profiles read by the app itself, on the phone;