301 lines
11 KiB
Dart
301 lines
11 KiB
Dart
import 'package:cached_network_image/cached_network_image.dart';
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import 'package:caraka/global_utils/belajar_utils/model/modeldraw.dart';
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import 'package:caraka/global_utils/info_utils/lang/app_localization.dart';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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class CustomD extends StatefulWidget {
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final Color warna;
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final String thumbnail;
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final String judul;
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final String modelgambar;
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const CustomD(
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{required this.warna,
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required this.thumbnail,
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required this.judul,
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required this.modelgambar});
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@override
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State<CustomD> createState() => _CustomDState();
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}
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class _CustomDState extends State<CustomD> {
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var historyDrawingPoints = <DrawingPoint>[];
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var drawingPoints = <DrawingPoint>[];
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var selectedColor = Colors.black;
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var selectedWidth = 2.0;
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DrawingPoint? currentDrawingPoint;
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@override
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Widget build(BuildContext context) {
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final penerjemah = context.watch<AppLocalization>();
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return Scaffold(
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appBar: PreferredSize(
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preferredSize: const Size.fromHeight(0),
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child: AppBar(
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backgroundColor: const Color(0xFFF00000),
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)),
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backgroundColor: const Color(0xFFFF0000),
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body: Stack(
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children: [
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Column(
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children: [
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Container(
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height: 120,
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width: MediaQuery.of(context).size.width,
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color: const Color(0xFFFF0000),
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),
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Expanded(
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child: Container(
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width: MediaQuery.of(context).size.width,
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decoration: const BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.only(
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topLeft: Radius.circular(20),
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topRight: Radius.circular(20)),
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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.only(left: 20.0, right: 20.0),
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child: Column(
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children: [
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Align(
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alignment: Alignment.topCenter,
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child: Padding(
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padding: const EdgeInsets.only(top: 56.0),
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child: Container(
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height: 133,
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width: 372,
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decoration: BoxDecoration(
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color: widget.warna,
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borderRadius: BorderRadius.circular(16)),
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child: Padding(
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padding: const EdgeInsets.all(16),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceAround,
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children: [
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ClipRRect(
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borderRadius: BorderRadius.circular(20),
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child: CachedNetworkImage(
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imageUrl: widget.thumbnail,
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width: 100,
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height: 100,
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placeholder:(context, url) =>
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Container(
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width: 50,
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height: 50,
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alignment: Alignment.center,
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child: CircularProgressIndicator()),
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errorWidget: (context, url, error) => Icon(Icons.error),
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),
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),
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const SizedBox(
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width: 10,
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),
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Text(
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widget.judul,
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style: TextStyle(
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fontSize: 20,
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fontWeight: FontWeight.w900,
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color: Colors.white),
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),
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const SizedBox(
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width: 30,
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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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SizedBox(height: 24),
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Container(
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padding: EdgeInsets.all(16),
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height: 300,
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width: MediaQuery.of(context).size.width,
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(16),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.25),
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blurRadius: 4,
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spreadRadius: 0,
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offset: const Offset(0, 4))
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],
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),
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child: Stack(
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children: [
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Image.asset(widget.modelgambar),
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GestureDetector(
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onPanStart: (details) {
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setState(() {
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currentDrawingPoint = DrawingPoint(
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id: DateTime.now().microsecondsSinceEpoch,
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offsets: [details.localPosition],
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color: widget.warna,
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width: selectedWidth);
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if (currentDrawingPoint == null) return;
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drawingPoints.add(currentDrawingPoint!);
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historyDrawingPoints = List.of(drawingPoints);
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});
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},
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onPanUpdate: (details) {
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setState(() {
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if (currentDrawingPoint == null) return;
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currentDrawingPoint = currentDrawingPoint?.copyWith(
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offsets: currentDrawingPoint!.offsets
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..add(details.localPosition),
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);
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drawingPoints.last = currentDrawingPoint!;
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historyDrawingPoints = List.of(drawingPoints);
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});
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},
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onPanEnd: (_) {
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currentDrawingPoint = null;
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},
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child: CustomPaint(
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painter: DrawingPainter(
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drawingPoints: drawingPoints
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),
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child: SizedBox(
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width: MediaQuery.of(context).size.width,
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height: MediaQuery.of(context).size.height
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),
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),
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),
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Positioned(
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top: MediaQuery.of(context).padding.right,
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right: 0,
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bottom: MediaQuery.of(context).padding.bottom,
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child: RotatedBox(
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quarterTurns: 3,
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child: Slider(
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inactiveColor: Colors.grey,
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activeColor: widget.warna,
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value: selectedWidth,
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min: 1,
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max: 20,
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onChanged: (value) {
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setState(() {
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selectedWidth = value;
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});
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},
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),
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),
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),
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Row(
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mainAxisAlignment: MainAxisAlignment.start,
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crossAxisAlignment: CrossAxisAlignment.end,
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children: [
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FloatingActionButton(
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heroTag: 'Undo',
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backgroundColor: widget.warna,
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foregroundColor: Colors.black,
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mini: true,
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onPressed: (){
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if (drawingPoints.isNotEmpty && historyDrawingPoints.isNotEmpty) {
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setState(() {
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drawingPoints.removeLast();
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});
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}
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},
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child: const Icon(Icons.undo),
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),
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FloatingActionButton(
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heroTag: 'Redo',
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backgroundColor: widget.warna,
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foregroundColor: Colors.black,
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mini: true,
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onPressed: (){
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setState(() {
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if (drawingPoints.length < historyDrawingPoints.length) {
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final index = drawingPoints.length;
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drawingPoints.add(historyDrawingPoints[index]);
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}
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});
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},
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child: const Icon(Icons.redo),
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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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SizedBox(
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height: 20,
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),
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SizedBox(
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height: 36,
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width: MediaQuery.of(context).size.width,
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child: ElevatedButton(
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onPressed: () {
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Navigator.pop(context);
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},
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.grey,
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foregroundColor: Colors.white,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8))),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(Icons.navigate_before),
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SizedBox(
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width: 10,
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),
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Text(penerjemah.translate('tombolbackdraw')),
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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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}
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class DrawingPainter extends CustomPainter {
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final List<DrawingPoint> drawingPoints;
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DrawingPainter({required this.drawingPoints});
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@override
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void paint(Canvas canvas, Size size) {
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for (var drawingPoint in drawingPoints) {
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final paint = Paint()
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..color = drawingPoint.color
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..isAntiAlias = true
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..strokeWidth = drawingPoint.width
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..strokeCap = StrokeCap.round;
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for (var i = 0; i < drawingPoint.offsets.length; i++) {
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var notLastOffset = i != drawingPoint.offsets.length - 1;
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if (notLastOffset) {
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final current = drawingPoint.offsets[i];
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final next = drawingPoint.offsets[i + 1];
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canvas.drawLine(current, next, paint);
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} else {
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/// we do nothing
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}
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}
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}
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}
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@override
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bool shouldRepaint(covariant CustomPainter oldDelegate) {
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return true;
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}
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}
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