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samples/experimental/material_3_demo/lib/constants.dart

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// Copyright 2021 The Flutter team. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
// NavigationRail shows if the screen width is greater or equal to
// narrowScreenWidthThreshold; otherwise, NavigationBar is used for navigation.
const double narrowScreenWidthThreshold = 450;
const double mediumWidthBreakpoint = 1000;
const double largeWidthBreakpoint = 1500;
const double transitionLength = 500;
// Whether the user has chosen a theme color via a direct [ColorSeed] selection,
// or an image [ColorImageProvider].
enum ColorSelectionMethod {
colorSeed,
image,
}
enum ColorSeed {
baseColor('M3 Baseline', Color(0xff6750a4)),
indigo('Indigo', Colors.indigo),
blue('Blue', Colors.blue),
teal('Teal', Colors.teal),
green('Green', Colors.green),
yellow('Yellow', Colors.yellow),
orange('Orange', Colors.orange),
deepOrange('Deep Orange', Colors.deepOrange),
pink('Pink', Colors.pink);
const ColorSeed(this.label, this.color);
final String label;
final Color color;
}
enum ColorImageProvider {
leaves('Leaves',
'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_1.png'),
peonies('Peonies',
'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_2.png'),
bubbles('Bubbles',
'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_3.png'),
seaweed('Seaweed',
'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_4.png'),
seagrapes('Sea Grapes',
'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_5.png'),
petals('Petals',
'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_6.png');
const ColorImageProvider(this.label, this.url);
final String label;
final String url;
}
enum ScreenSelected {
component(0),
color(1),
typography(2),
elevation(3);
const ScreenSelected(this.value);
final int value;
}