87 lines
2.2 KiB
Dart
87 lines
2.2 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:segmentation_douglas_peucker_flutter/dali_point.dart';
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import 'package:segmentation_douglas_peucker_flutter/douglas.dart';
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import 'package:segmentation_douglas_peucker_flutter/sketcher_line.dart';
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import 'package:segmentation_douglas_peucker_flutter/sketcher_points.dart';
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void main() {
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runApp(const MainApp());
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}
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class MainApp extends StatelessWidget {
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const MainApp({super.key});
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@override
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Widget build(BuildContext context) {
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return const MaterialApp(
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home: Scaffold(
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body: Center(
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child: Main(),
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),
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),
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);
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}
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}
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class Main extends StatefulWidget {
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const Main({super.key});
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@override
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State<Main> createState() => _MainState();
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}
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class _MainState extends State<Main> {
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List<DaliPoint> _points = [];
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@override
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Widget build(BuildContext context) {
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return Stack(
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alignment: Alignment.topRight,
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children: [
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Listener(
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behavior: HitTestBehavior.opaque,
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onPointerMove: (event) {
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setState(() {
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_points.add(
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DaliPoint(
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event.localPosition.dx.toInt(),
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event.localPosition.dy.toInt(),
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),
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);
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});
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},
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child: SizedBox(
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width: MediaQuery.sizeOf(context).width,
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height: MediaQuery.sizeOf(context).height,
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child: Stack(
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children: [
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CustomPaint(
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painter: SketcherLine(
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points: _points,
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),
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),
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CustomPaint(
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painter: SketcherPoints(
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points: _points,
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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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Padding(
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padding: const EdgeInsets.all(32),
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child: ElevatedButton(
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onPressed: () {
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final newPoints = Douglas.transformDouglasPeucker(_points);
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setState(() {
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_points = newPoints;
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});
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},
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child: const Text('Apply Douglas Peucker'),
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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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