updated timetable UI with event status and enhanced appointment tile rendering

lib/view/pages/timetable/widgets/appointment_tile.dart

@@ -1,10 +1,15 @@
 import 'package:flutter/material.dart';
 import 'package:syncfusion_flutter_calendar/calendar.dart';
 
+import '../data/arbitrary_appointment.dart';
 import 'cross_painter.dart';
 
 class AppointmentTile extends StatelessWidget {
   static const _radius = BorderRadius.all(Radius.circular(7));
+  static const _titleFontSize = 15.0;
+  static const _titleMinFontSize = 11.0;
+  static const _bodyFontSize = 10.0;
+  static const _bodyLineHeight = 1.15;
 
   final Appointment appointment;
   final bool crossedOut;
@@ -15,12 +20,8 @@ class AppointmentTile extends StatelessWidget {
   Widget build(BuildContext context) {
     final isPast = appointment.endTime.isBefore(DateTime.now());
     final color = appointment.color.withAlpha(isPast ? 160 : 255);
-
-    final locationLines = (appointment.location ?? '')
-        .split('\n')
-        .where((p) => p.isNotEmpty)
-        .take(2)
-        .toList(growable: false);
+    final isCustom = appointment.id is CustomAppointment;
+    final description = appointment.location ?? '';
 
     return Padding(
       padding: const EdgeInsets.all(1),
@@ -37,15 +38,33 @@ class AppointmentTile extends StatelessWidget {
               ),
               child: Column(
                 crossAxisAlignment: CrossAxisAlignment.stretch,
-                mainAxisSize: MainAxisSize.min,
+                mainAxisSize: MainAxisSize.max,
                 children: [
-                  _ScaledLine(
+                  _AdaptiveTitle(
                     text: appointment.subject,
-                    fontSize: 15,
+                    fontSize: _titleFontSize,
+                    minFontSize: _titleMinFontSize,
                     fontWeight: FontWeight.w500,
                   ),
-                  for (final line in locationLines)
-                    _ScaledLine(text: line, fontSize: 10),
+                  if (isCustom) ...[
+                    if (description.isNotEmpty)
+                      Expanded(
+                        child: Padding(
+                          padding: const EdgeInsets.only(top: 1),
+                          child: _WrappingBody(
+                            text: description,
+                            fontSize: _bodyFontSize,
+                            lineHeight: _bodyLineHeight,
+                          ),
+                        ),
+                      ),
+                  ] else ...[
+                    for (final line in description
+                        .split('\n')
+                        .where((p) => p.isNotEmpty)
+                        .take(2))
+                      _ScaledLine(text: line, fontSize: _bodyFontSize),
+                  ],
                 ],
               ),
             ),
@@ -69,18 +88,111 @@ class AppointmentTile extends StatelessWidget {
   }
 }
 
+/// Renders the appointment title. Scales down to fit the available width via
+/// [FittedBox], but never below [minFontSize] — when even the minimum size
+/// overflows, the text is rendered at [minFontSize] with an ellipsis.
+class _AdaptiveTitle extends StatelessWidget {
+  final String text;
+  final double fontSize;
+  final double minFontSize;
+  final FontWeight? fontWeight;
+
+  const _AdaptiveTitle({
+    required this.text,
+    required this.fontSize,
+    required this.minFontSize,
+    this.fontWeight,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final baseStyle = TextStyle(
+      color: Colors.white,
+      fontSize: fontSize,
+      fontWeight: fontWeight,
+      height: 1.1,
+    );
+    final textScaler = MediaQuery.textScalerOf(context);
+    return LayoutBuilder(
+      builder: (context, constraints) {
+        // Probe at the minimum size: if even that overflows, we have to ellipsize.
+        final probe = TextPainter(
+          text: TextSpan(text: text, style: baseStyle.copyWith(fontSize: minFontSize)),
+          textDirection: TextDirection.ltr,
+          maxLines: 1,
+          textScaler: textScaler,
+        )..layout();
+        if (probe.width > constraints.maxWidth) {
+          return Text(
+            text,
+            style: baseStyle.copyWith(fontSize: minFontSize),
+            maxLines: 1,
+            softWrap: false,
+            overflow: TextOverflow.ellipsis,
+          );
+        }
+        return FittedBox(
+          fit: BoxFit.scaleDown,
+          alignment: Alignment.centerLeft,
+          child: Text(
+            text,
+            style: baseStyle,
+            maxLines: 1,
+            softWrap: false,
+          ),
+        );
+      },
+    );
+  }
+}
+
+/// Body text for custom events. Wraps to fill the available height and clips
+/// trailing content with an ellipsis if there is more than fits.
+class _WrappingBody extends StatelessWidget {
+  final String text;
+  final double fontSize;
+  final double lineHeight;
+
+  const _WrappingBody({
+    required this.text,
+    required this.fontSize,
+    required this.lineHeight,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final style = TextStyle(
+      color: Colors.white,
+      fontSize: fontSize,
+      height: lineHeight,
+    );
+    final textScaler = MediaQuery.textScalerOf(context);
+    return LayoutBuilder(
+      builder: (context, constraints) {
+        final lineBox = textScaler.scale(fontSize) * lineHeight;
+        final maxLines = (constraints.maxHeight / lineBox).floor().clamp(1, 99);
+        return Text(
+          text,
+          style: style,
+          maxLines: maxLines,
+          overflow: TextOverflow.ellipsis,
+          softWrap: true,
+        );
+      },
+    );
+  }
+}
+
 /// One row of appointment text. The FittedBox scales **only this line** down
 /// when the text is wider than the tile, so a long teacher name does not
 /// shrink the room number above it.
 class _ScaledLine extends StatelessWidget {
   final String text;
   final double fontSize;
-  final FontWeight? fontWeight;
 
   const _ScaledLine({
     required this.text,
     required this.fontSize,
-    this.fontWeight,
   });
 
   @override
@@ -92,7 +204,6 @@ class _ScaledLine extends StatelessWidget {
           style: TextStyle(
             color: Colors.white,
             fontSize: fontSize,
-            fontWeight: fontWeight,
             height: 1.1,
           ),
           maxLines: 1,