101 lines
3.0 KiB
Dart
101 lines
3.0 KiB
Dart
import 'dart:math' as math;
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import 'package:flutter/material.dart';
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import '../../../core/constants/app_colors.dart';
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/// A lightweight, static abstract background decorator featuring exactly 3 large, solid shapes (no outlines).
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/// Fully responsive across Mobile, Web, and Desktop platforms.
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class AbstractBackground extends StatelessWidget {
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final Widget child;
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const AbstractBackground({
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super.key,
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required this.child,
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});
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@override
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Widget build(BuildContext context) {
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return Stack(
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fit: StackFit.expand,
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children: [
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// Static abstract background shapes layer (Ignored for pointer events)
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const IgnorePointer(
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child: _AbstractShapesCanvas(),
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),
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// Screen Content Layer
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child,
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],
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);
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}
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}
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class _AbstractShapesCanvas extends StatelessWidget {
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const _AbstractShapesCanvas();
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@override
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Widget build(BuildContext context) {
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return LayoutBuilder(
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builder: (context, constraints) {
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final width = constraints.maxWidth;
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final height = constraints.maxHeight;
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if (width == 0 || height == 0) return const SizedBox.shrink();
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return Stack(
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children: [
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// Base background tint
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Container(color: AppColors.pageBackground),
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// Shape 1 (Top-Right): Large Solid Circle
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Positioned(
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top: -height * 0.12,
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right: -width * 0.10,
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child: Container(
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width: math.max(320, width * 0.55),
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height: math.max(320, width * 0.55),
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: AppColors.primaryGreen.withValues(alpha: 0.075),
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),
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),
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),
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// Shape 2 (Top-Left): Large Solid Tilted Rect Block
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Positioned(
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top: height * 0.08,
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left: -width * 0.12,
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child: Transform.rotate(
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angle: -math.pi / 6,
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child: Container(
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width: math.max(260, width * 0.45),
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height: math.max(140, width * 0.22),
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(48),
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color: AppColors.darkGreen.withValues(alpha: 0.055),
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),
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),
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),
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),
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// Shape 3 (Bottom-Right): Large Solid Tilted Pill Capsule
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Positioned(
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bottom: height * 0.05,
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right: -width * 0.06,
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child: Transform.rotate(
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angle: math.pi / 5,
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child: Container(
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width: math.max(280, width * 0.50),
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height: math.max(120, width * 0.22),
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(60),
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color: AppColors.primaryGreen.withValues(alpha: 0.065),
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),
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),
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),
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),
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],
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);
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},
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);
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}
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}
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