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This auto-formats all *.dart files in the repository outside of the `engine` subdirectory and enforces that these files stay formatted with a presubmit check. **Reviewers:** Please carefully review all the commits except for the one titled "formatted". The "formatted" commit was auto-generated by running `dev/tools/format.sh -a -f`. The other commits were hand-crafted to prepare the repo for the formatting change. I recommend reviewing the commits one-by-one via the "Commits" tab and avoiding Github's "Files changed" tab as it will likely slow down your browser because of the size of this PR. --------- Co-authored-by: Kate Lovett <katelovett@google.com> Co-authored-by: LongCatIsLooong <31859944+LongCatIsLooong@users.noreply.github.com>
83 lines
2.1 KiB
Dart
83 lines
2.1 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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/// Flutter code sample for [MouseRegion].
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void main() => runApp(const MouseRegionApp());
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class MouseRegionApp extends StatelessWidget {
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const MouseRegionApp({super.key});
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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home: Scaffold(
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appBar: AppBar(title: const Text('MouseRegion Sample')),
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body: const Center(child: MouseRegionExample()),
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),
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);
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}
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}
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class MouseRegionExample extends StatefulWidget {
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const MouseRegionExample({super.key});
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@override
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State<MouseRegionExample> createState() => _MouseRegionExampleState();
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}
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class _MouseRegionExampleState extends State<MouseRegionExample> {
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int _enterCounter = 0;
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int _exitCounter = 0;
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double x = 0.0;
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double y = 0.0;
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void _incrementEnter(PointerEvent details) {
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setState(() {
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_enterCounter++;
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});
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}
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void _incrementExit(PointerEvent details) {
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setState(() {
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_exitCounter++;
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});
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}
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void _updateLocation(PointerEvent details) {
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setState(() {
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x = details.position.dx;
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y = details.position.dy;
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});
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}
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@override
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Widget build(BuildContext context) {
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return ConstrainedBox(
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constraints: BoxConstraints.tight(const Size(300.0, 200.0)),
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child: MouseRegion(
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onEnter: _incrementEnter,
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onHover: _updateLocation,
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onExit: _incrementExit,
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child: ColoredBox(
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color: Colors.lightBlueAccent,
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: <Widget>[
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const Text('You have entered or exited this box this many times:'),
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Text(
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'$_enterCounter Entries\n$_exitCounter Exits',
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style: Theme.of(context).textTheme.headlineMedium,
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),
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Text('The cursor is here: (${x.toStringAsFixed(2)}, ${y.toStringAsFixed(2)})'),
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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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