flutter_canvas_template_editor/lib/main.dart

// Copyright (c) 2021 Razeware LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// Notwithstanding the foregoing, you may not use, copy, modify, merge, publish,
// distribute, sublicense, create a derivative work, and/or sell copies of the
// Software in any work that is designed, intended, or marketed for pedagogical
// or instructional purposes related to programming, coding, application
// development, or information technology.  Permission for such use, copying,
// modification, merger, publication, distribution, sublicensing, creation of
// derivative works, or sale is expressly withheld.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

import 'arc_curves_painter.dart';
import 'common/common_scaffold.dart';
import 'grid/grid_widget.dart';
import 'ovals_painter.dart';
import 'polygon_painter.dart';

import 'battery/animated_battery.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    SystemChrome.setPreferredOrientations([
      DeviceOrientation.portraitUp,
      DeviceOrientation.portraitDown,
    ]);
    return MaterialApp(
      title: 'Canvas Basics',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: HomeWidget(),
    );
  }
}

class HomeWidget extends StatelessWidget {
  HomeWidget({Key? key}) : super(key: key);

  final items = <Item>[
    Item('Polygons', GridWidget(PolygonPainter())),
    Item('Ovals and Circles', GridWidget(OvalPainter())),
    Item('Arc and Curves', GridWidget(ArcsCurvesPainter())),
    Item('Animated Battery', const AnimatedBattery()),
  ];

  @override
  Widget build(BuildContext context) {
    return CommonScaffold(
      title: 'Canvas Basics',
      child: Column(
        mainAxisSize: MainAxisSize.max,
        mainAxisAlignment: MainAxisAlignment.center,
        crossAxisAlignment: CrossAxisAlignment.center,
        children: items.map((e) => ItemWidget(e)).toList(),
      ),
    );
  }
}

// TODO: Rename project

class ItemWidget extends StatelessWidget {
  final Item item;

  const ItemWidget(this.item, {Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Container(
      width: double.infinity,
      margin: const EdgeInsets.symmetric(horizontal: 20, vertical: 7),
      child: TextButton(
        style: TextButton.styleFrom(
            foregroundColor: Colors.white, backgroundColor: const Color(0xFF158443),
            padding: const EdgeInsets.symmetric(vertical: 15)),
        onPressed: () {
          final widget = CommonScaffold(title: item.title, child: item.widget);
          Navigator.of(context)
              .push(MaterialPageRoute<void>(builder: (_) => widget));
        },
        child: Text(
          item.title,
          style: const TextStyle(
            fontSize: 18,
            fontWeight: FontWeight.bold,
          ),
        ),
      ),
    );
  }
}

class Item {
  final String title;
  final Widget widget;

  Item(this.title, this.widget);
}