31d6b35b7f
The PR is moving FlutterLogo from `lib/src/material` to `lib/src/widgets` because it has no dependency on Material. Issue: https://github.com/flutter/flutter/issues/154448 PS: There is [older PR](https://github.com/flutter/flutter/pull/154711) for this issue and I don't know the policy on conflicting PRs. Let me know if I need to drop mine.
80 lines
2.6 KiB
Dart
80 lines
2.6 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 'basic.dart';
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import 'framework.dart';
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import 'icon_theme.dart';
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import 'icon_theme_data.dart';
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import 'implicit_animations.dart';
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/// The Flutter logo, in widget form. This widget respects the [IconTheme].
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/// For guidelines on using the Flutter logo, visit https://flutter.dev/brand.
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///
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/// {@youtube 560 315 https://www.youtube.com/watch?v=aAmP-WcI6dg}
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///
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/// See also:
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///
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/// * [IconTheme], which provides ambient configuration for icons.
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/// * [Icon], for showing icons the Material design icon library.
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/// * [ImageIcon], for showing icons from [AssetImage]s or other [ImageProvider]s.
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class FlutterLogo extends StatelessWidget {
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/// Creates a widget that paints the Flutter logo.
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///
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/// The [size] defaults to the value given by the current [IconTheme].
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///
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/// The [textColor], [style], [duration], and [curve] arguments must not be
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/// null.
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const FlutterLogo({
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super.key,
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this.size,
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this.textColor = const Color(0xFF757575),
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this.style = FlutterLogoStyle.markOnly,
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this.duration = const Duration(milliseconds: 750),
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this.curve = Curves.fastOutSlowIn,
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});
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/// The size of the logo in logical pixels.
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///
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/// The logo will be fit into a square this size.
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///
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/// Defaults to the current [IconTheme] size, if any. If there is no
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/// [IconTheme], or it does not specify an explicit size, then it defaults to
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/// 24.0.
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final double? size;
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/// The color used to paint the "Flutter" text on the logo, if [style] is
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/// [FlutterLogoStyle.horizontal] or [FlutterLogoStyle.stacked].
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///
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/// If possible, the default (a medium grey) should be used against a white
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/// background.
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final Color textColor;
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/// Whether and where to draw the "Flutter" text. By default, only the logo
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/// itself is drawn.
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final FlutterLogoStyle style;
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/// The length of time for the animation if the [style] or [textColor]
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/// properties are changed.
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final Duration duration;
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/// The curve for the logo animation if the [style] or [textColor] change.
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final Curve curve;
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@override
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Widget build(BuildContext context) {
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final IconThemeData iconTheme = IconTheme.of(context);
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final double? iconSize = size ?? iconTheme.size;
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return AnimatedContainer(
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width: iconSize,
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height: iconSize,
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duration: duration,
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curve: curve,
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decoration: FlutterLogoDecoration(
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style: style,
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textColor: textColor,
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),
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);
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}
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}
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