custom login implementation, period-based timetable layout with overlap handling, enhanced error dialogs, and unified bottom sheets

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

@@ -4,6 +4,8 @@ import 'package:syncfusion_flutter_calendar/calendar.dart';
 import 'cross_painter.dart';
 
 class AppointmentTile extends StatelessWidget {
+  static const _radius = BorderRadius.all(Radius.circular(7));
+
   final Appointment appointment;
   final bool crossedOut;
 
@@ -14,54 +16,51 @@ class AppointmentTile extends StatelessWidget {
     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);
+
     return Padding(
       padding: const EdgeInsets.all(1),
       child: Stack(
         children: [
           Positioned.fill(
             child: Container(
-              padding: const EdgeInsets.all(4),
+              padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 2),
               alignment: Alignment.topLeft,
               decoration: BoxDecoration(
                 shape: BoxShape.rectangle,
-                borderRadius: const BorderRadius.all(Radius.circular(7)),
+                borderRadius: _radius,
                 color: color,
               ),
-              child: SingleChildScrollView(
-                child: Column(
-                  crossAxisAlignment: CrossAxisAlignment.start,
-                  children: [
-                    FittedBox(
-                      fit: BoxFit.fitWidth,
-                      child: Text(
-                        appointment.subject,
-                        style: const TextStyle(color: Colors.white, fontSize: 15, fontWeight: FontWeight.w500),
-                        maxLines: 1,
-                        softWrap: false,
-                      ),
-                    ),
-                    FittedBox(
-                      fit: BoxFit.fitWidth,
-                      child: Text(
-                        appointment.location?.isNotEmpty == true ? appointment.location! : ' ',
-                        maxLines: 3,
-                        overflow: TextOverflow.ellipsis,
-                        style: const TextStyle(color: Colors.white, fontSize: 10),
-                      ),
-                    ),
-                  ],
-                ),
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.stretch,
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  _ScaledLine(
+                    text: appointment.subject,
+                    fontSize: 15,
+                    fontWeight: FontWeight.w500,
+                  ),
+                  for (final line in locationLines)
+                    _ScaledLine(text: line, fontSize: 10),
+                ],
               ),
             ),
           ),
           if (crossedOut)
             Positioned.fill(
-              child: DecoratedBox(
-                decoration: BoxDecoration(
-                  border: Border.all(width: 2, color: Colors.red.withAlpha(200)),
-                  borderRadius: const BorderRadius.all(Radius.circular(7)),
+              child: ClipRRect(
+                borderRadius: _radius,
+                child: DecoratedBox(
+                  decoration: BoxDecoration(
+                    border: Border.all(width: 2, color: Colors.red.withAlpha(200)),
+                    borderRadius: _radius,
+                  ),
+                  child: CustomPaint(painter: CrossPainter()),
                 ),
-                child: CustomPaint(painter: CrossPainter()),
               ),
             ),
         ],
@@ -69,3 +68,35 @@ class AppointmentTile extends StatelessWidget {
     );
   }
 }
+
+/// 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
+  Widget build(BuildContext context) => FittedBox(
+        fit: BoxFit.scaleDown,
+        alignment: Alignment.centerLeft,
+        child: Text(
+          text,
+          style: TextStyle(
+            color: Colors.white,
+            fontSize: fontSize,
+            fontWeight: fontWeight,
+            height: 1.1,
+          ),
+          maxLines: 1,
+          softWrap: false,
+        ),
+      );
+}