Fred Grott fredgrott
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| // Copyright 2025 Fredrick Allan Grott. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| // | |
| // Modified from the Material_3_Expressive package | |
| // MIT License by Emily Moonstone 2025 | |
| // ignore_for_file: prefer_constructors_over_static_methods, dead_code |
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| /// Inject (or replace) the M3ETheme extension on a ThemeData. | |
| ThemeData withM3ETheme(ThemeData base, {M3ETheme? override}) { | |
| // Use any existing M3ETheme, else the provided override, else defaults. | |
| final current = base.extension<M3ETheme>(); | |
| final next = override ?? current ?? M3ETheme.defaults(base.colorScheme); | |
| // Merge existing extensions (values) with our M3ETheme, replacing prior ones. | |
| final Iterable<ThemeExtension<dynamic>> existing = base.extensions.values; | |
| final List<ThemeExtension<dynamic>> merged = <ThemeExtension<dynamic>>[]; | |
| for (final e in existing) { |
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| // Convenience creation helpers to install M3ETheme with minimal boilerplate. | |
| extension M3EColorSchemeAccessors on ColorScheme { | |
| /// Creates a ThemeData from this ColorScheme and installs the M3ETheme | |
| /// extension in one call. | |
| /// | |
| /// Example: | |
| /// final theme = ColorScheme.fromSeed(seedColor: Colors.teal).toM3EThemeData(); | |
| ThemeData toM3EThemeData({ | |
| bool useMaterial3 = true, | |
| M3ETheme? override, |
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| Widget build(BuildContext context){ | |
| final light = ColorScheme.fromSeed(dynamicSchemeVariant: DynamicSchemeVariant.tonalSpot, | |
| contrastLevel: 0.1, | |
| seedColor: Colors.purple, brightness: Brightness.light).toM3EThemeData(); | |
| final dark = ColorScheme.fromSeed(dynamicSchemeVariant: DynamicSchemeVariant.tonalSpot, | |
| contrastLevel: 0.1, | |
| seedColor: Colors.purple, brightness: Brightness.dark).toM3EThemeData(); | |
| return MaterialApp( | |
| title: "Me". | |
| theme: light.toM3ETheme(), |
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| factory M3ETypography.defaultFor( | |
| Brightness brightness, { | |
| String? brandFontFamily, | |
| String? plainFontFamily, | |
| TextTheme? baseOverride, | |
| }) { | |
| // 1) Start from Material 3 baseline type. | |
| final m3 = Typography.material2021(); | |
| final TextTheme m3Base = | |
| baseOverride ?? (brightness == Brightness.dark ? m3.white : m3.black); |
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| factory Typography.material2021({ | |
| TargetPlatform? platform = TargetPlatform.android, | |
| ColorScheme colorScheme = const ColorScheme.light(), | |
| TextTheme? black, | |
| TextTheme? white, | |
| TextTheme? englishLike, | |
| TextTheme? dense, | |
| TextTheme? tall, | |
| }) { | |
| assert(platform != null || (black != null && white != null)); |
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| // Copyright 2025 Fredrick Allan Grott. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| // | |
| // Modified from the Material_3_Expressive package | |
| // MIT License by Emily Moonstone 2025 | |
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| Widget build(BuildContext context){ | |
| final light = ColorScheme.fromSeed(dynamicSchemeVariant: DynamicSchemeVariant.tonalSpot, | |
| contrastLevel: 0.1, | |
| seedColor: Colors.purple, brightness: Brightness.light).toM3EThemeData(); | |
| final dark = ColorScheme.fromSeed(dynamicSchemeVariant: DynamicSchemeVariant.tonalSpot, | |
| contrastLevel: 0.1, | |
| seedColor: Colors.purple, brightness: Brightness.dark).toM3EThemeData(); | |
| return MaterialApp( | |
| title: "Me". | |
| theme: light, |
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| emphasizedOverride(birghtness) { | |
| ColorScheme tempColorScheme = ColorScheme.fromSeed(seedColor: Colors.blue, brightness: brightness, dynamicSchemeVariant: DynamicSchemeVariant.tonalSpot, contrastLevel: 0.0,); | |
| final Color dark = tempColorScheme.brightness == Brightness.light ? tempColorScheme.onSurface : tempColorScheme.surface; | |
| final Color light = tempColorScheme.brightness == Brightness.light ? tempColorScheme.surface : tempColorScheme.onSurface; | |
| return M3Emphasized( | |
| displayLarge: GoogleFonts.name(textStyle: TextStyle(color: brightness == Brightness.light ? dark : light, | |
| decorationColor: brightness == Brightness.light ? dark: light,), | |
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| // Copyright 2025 Fredrick Allan Grott. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| // | |
| // Modified from the Material_3_Expressive package | |
| // MIT License by Emily Moonstone 2025 | |
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