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samples/web/charts/lib/drawer.dart

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1.7 KiB

// Copyright 2018 the Charts project authors. Please see the AUTHORS file
// for details.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import 'package:flutter/material.dart';
/// A menu drawer supporting toggling theme and performance overlay.
class GalleryDrawer extends StatelessWidget {
final bool showPerformanceOverlay;
final ValueChanged<bool> onShowPerformanceOverlayChanged;
const GalleryDrawer(
{Key? key,
required this.showPerformanceOverlay,
required this.onShowPerformanceOverlayChanged})
: super(key: key);
@override
Widget build(BuildContext context) {
return Drawer(
child: ListView(children: [
// Performance overlay toggle.
ListTile(
leading: const Icon(Icons.assessment),
title: const Text('Performance Overlay'),
onTap: () {
onShowPerformanceOverlayChanged(!showPerformanceOverlay);
},
selected: showPerformanceOverlay,
trailing: Checkbox(
value: showPerformanceOverlay,
onChanged: (bool? value) {
onShowPerformanceOverlayChanged(!showPerformanceOverlay);
},
),
),
]),
);
}
}