Initial commit — DLS lab-app Flutter project

2026-06-10 23:22:15 +03:00
commit d1acc1d367
225 changed files with 31294 additions and 0 deletions
@@ -0,0 +1,104 @@
+import 'package:flutter/material.dart';
+import '../../core/theme/app_theme.dart';
+
+/// Animated floating blob background used on auth screens.
+/// [bright] = true → white blobs (for dark/gradient backgrounds).
+/// [bright] = false → primary/accent blobs (for light backgrounds).
+class AnimatedAuthBg extends StatefulWidget {
+  const AnimatedAuthBg({super.key, this.bright = false});
+  final bool bright;
+
+  @override
+  State<AnimatedAuthBg> createState() => _AnimatedAuthBgState();
+}
+
+class _AnimatedAuthBgState extends State<AnimatedAuthBg>
+    with SingleTickerProviderStateMixin {
+  late AnimationController _ctrl;
+  late Animation<double> _anim;
+
+  @override
+  void initState() {
+    super.initState();
+    _ctrl = AnimationController(
+      vsync: this,
+      duration: const Duration(seconds: 8),
+    )..repeat(reverse: true);
+    _anim = CurvedAnimation(parent: _ctrl, curve: Curves.easeInOut);
+  }
+
+  @override
+  void dispose() {
+    _ctrl.dispose();
+    super.dispose();
+  }
+
+  Color _blob(double alpha) => widget.bright
+      ? Colors.white.withValues(alpha: alpha * 1.5)
+      : AppColors.primary.withValues(alpha: alpha);
+
+  Color _blobAccent(double alpha) => widget.bright
+      ? Colors.white.withValues(alpha: alpha * 1.2)
+      : AppColors.accent.withValues(alpha: alpha);
+
+  @override
+  Widget build(BuildContext context) {
+    return AnimatedBuilder(
+      animation: _anim,
+      builder: (_, __) {
+        final t = _anim.value;
+        return Stack(
+          children: [
+            Positioned(
+              top: -80 + t * 30,
+              left: -60 + t * 20,
+              child: AuthBlob(size: 300, color: _blob(0.08)),
+            ),
+            Positioned(
+              top: 200 - t * 40,
+              right: -100 + t * 25,
+              child: AuthBlob(size: 250, color: _blobAccent(0.06)),
+            ),
+            Positioned(
+              bottom: 100 + t * 30,
+              left: 50 - t * 15,
+              child: AuthBlob(size: 200, color: _blob(0.05)),
+            ),
+            Positioned(
+              bottom: -50 + t * 20,
+              right: -50 + t * 10,
+              child: AuthBlob(size: 280, color: _blobAccent(0.07)),
+            ),
+            Positioned(
+              top: 350 + t * 25,
+              left: 80 + t * 20,
+              child: AuthBlob(size: 160, color: _blob(0.04)),
+            ),
+            Positioned(
+              top: -40 - t * 10,
+              left: 120 + t * 30,
+              child: AuthBlob(size: 180, color: _blobAccent(0.05)),
+            ),
+          ],
+        );
+      },
+    );
+  }
+}
+
+/// A simple solid circle used as a background blob.
+class AuthBlob extends StatelessWidget {
+  const AuthBlob({super.key, required this.size, required this.color});
+
+  final double size;
+  final Color color;
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      width: size,
+      height: size,
+      decoration: BoxDecoration(shape: BoxShape.circle, color: color),
+    );
+  }
+}