packages/flutter/lib/src/cupertino/text_theme.dart - mirrors/flutter.git - Git at Google

 // Copyright 2014 The Flutter Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 /// @docImport 'interface_level.dart';
 /// @docImport 'theme.dart';
 library;

 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';

 import 'colors.dart';

 // Please update _TextThemeDefaultsBuilder accordingly after changing the default
 // color here, as their implementation depends on the default value of the color
 // field.
 //
 // Values derived from https://developer.apple.com/design/resources/.
 const TextStyle _kDefaultTextStyle = TextStyle(
   inherit: false,
   fontFamily: 'CupertinoSystemText',
   fontSize: 17.0,
   letterSpacing: -0.41,
   color: CupertinoColors.label,
   decoration: TextDecoration.none,
 );

 // Please update _TextThemeDefaultsBuilder accordingly after changing the default
 // color here, as their implementation depends on the default value of the color
 // field.
 //
 // Values derived from https://developer.apple.com/design/resources/.
 // See [iOS 17 + iPadOS 17 UI Kit](https://www.figma.com/community/file/1248375255495415511) for details.
 const TextStyle _kDefaultActionTextStyle = TextStyle(
   inherit: false,
   fontFamily: 'CupertinoSystemText',
   fontSize: 17.0,
   letterSpacing: -0.41,
   color: CupertinoColors.activeBlue,
   decoration: TextDecoration.none,
 );

 // Please update _TextThemeDefaultsBuilder accordingly after changing the default
 // color here, as their implementation depends on the default value of the color
 // field.
 //
 // Values derived from https://developer.apple.com/design/resources/.
 // See [iOS 17 + iPadOS 17 UI Kit](https://www.figma.com/community/file/1248375255495415511) for details.
 const TextStyle _kDefaultActionSmallTextStyle = TextStyle(
   inherit: false,
   fontFamily: 'CupertinoSystemText',
   fontSize: 15.0,
   letterSpacing: -0.23,
   color: CupertinoColors.activeBlue,
   decoration: TextDecoration.none,
 );

 // Please update _TextThemeDefaultsBuilder accordingly after changing the default
 // color here, as their implementation depends on the default value of the color
 // field.
 //
 // Values derived from https://developer.apple.com/design/resources/.
 const TextStyle _kDefaultTabLabelTextStyle = TextStyle(
   inherit: false,
   fontFamily: 'CupertinoSystemText',
   fontSize: 10.0,
   fontWeight: FontWeight.w500,
   letterSpacing: -0.24,
   color: CupertinoColors.inactiveGray,
 );

 const TextStyle _kDefaultMiddleTitleTextStyle = TextStyle(
   inherit: false,
   fontFamily: 'CupertinoSystemText',
   fontSize: 17.0,
   fontWeight: FontWeight.w600,
   letterSpacing: -0.41,
   color: CupertinoColors.label,
 );

 const TextStyle _kDefaultLargeTitleTextStyle = TextStyle(
   inherit: false,
   fontFamily: 'CupertinoSystemDisplay',
   fontSize: 34.0,
   fontWeight: FontWeight.w700,
   letterSpacing: 0.38,
   color: CupertinoColors.label,
 );

 // Please update _TextThemeDefaultsBuilder accordingly after changing the default
 // color here, as their implementation depends on the default value of the color
 // field.
 //
 // Inspected on iOS 13 simulator with "Debug View Hierarchy".
 // Value extracted from off-center labels. Centered labels have a font size of 25pt.
 //
 // The letterSpacing sourced from iOS 14 simulator screenshots for comparison.
 // See also:
 //
 // * https://github.com/flutter/flutter/pull/65501#discussion_r486557093
 const TextStyle _kDefaultPickerTextStyle = TextStyle(
   inherit: false,
   fontFamily: 'CupertinoSystemDisplay',
   fontSize: 21.0,
   fontWeight: FontWeight.w400,
   letterSpacing: -0.6,
   color: CupertinoColors.label,
 );

 // Please update _TextThemeDefaultsBuilder accordingly after changing the default
 // color here, as their implementation depends on the default value of the color
 // field.
 //
 // Inspected on iOS 13 simulator with "Debug View Hierarchy".
 // Value extracted from off-center labels. Centered labels have a font size of 25pt.
 const TextStyle _kDefaultDateTimePickerTextStyle = TextStyle(
   inherit: false,
   fontFamily: 'CupertinoSystemDisplay',
   fontSize: 21,
   letterSpacing: 0.4,
   fontWeight: FontWeight.normal,
   color: CupertinoColors.label,
 );

 TextStyle? _resolveTextStyle(TextStyle? style, BuildContext context) {
   // This does not resolve the shadow color, foreground, background, etc.
   return style?.copyWith(
     color: CupertinoDynamicColor.maybeResolve(style.color, context),
     backgroundColor: CupertinoDynamicColor.maybeResolve(style.backgroundColor, context),
     decorationColor: CupertinoDynamicColor.maybeResolve(style.decorationColor, context),
   );
 }

 /// Cupertino typography theme in a [CupertinoThemeData].
 @immutable
 class CupertinoTextThemeData with Diagnosticable {
   /// Create a [CupertinoTextThemeData].
   ///
   /// The [primaryColor] is used to derive TextStyle defaults of other attributes
   /// such as [navActionTextStyle] and [actionTextStyle]. It must not be null when
   /// either [navActionTextStyle] or [actionTextStyle] is null. Defaults to
   /// [CupertinoColors.systemBlue].
   ///
   /// Other [TextStyle] parameters default to default iOS text styles when
   /// unspecified.
   const CupertinoTextThemeData({
     Color primaryColor = CupertinoColors.systemBlue,
     TextStyle? textStyle,
     TextStyle? actionTextStyle,
     TextStyle? actionSmallTextStyle,
     TextStyle? tabLabelTextStyle,
     TextStyle? navTitleTextStyle,
     TextStyle? navLargeTitleTextStyle,
     TextStyle? navActionTextStyle,
     TextStyle? pickerTextStyle,
     TextStyle? dateTimePickerTextStyle,
   }) : this._raw(
          const _TextThemeDefaultsBuilder(CupertinoColors.label, CupertinoColors.inactiveGray),
          primaryColor,
          textStyle,
          actionTextStyle,
          actionSmallTextStyle,
          tabLabelTextStyle,
          navTitleTextStyle,
          navLargeTitleTextStyle,
          navActionTextStyle,
          pickerTextStyle,
          dateTimePickerTextStyle,
        );

   const CupertinoTextThemeData._raw(
     this._defaults,
     this._primaryColor,
     this._textStyle,
     this._actionTextStyle,
     this._actionSmallTextStyle,
     this._tabLabelTextStyle,
     this._navTitleTextStyle,
     this._navLargeTitleTextStyle,
     this._navActionTextStyle,
     this._pickerTextStyle,
     this._dateTimePickerTextStyle,
   ) : assert((_navActionTextStyle != null && _actionTextStyle != null) || _primaryColor != null);

   final _TextThemeDefaultsBuilder _defaults;
   final Color? _primaryColor;

   final TextStyle? _textStyle;

   /// The [TextStyle] of general text content for Cupertino widgets.
   TextStyle get textStyle => _textStyle ?? _defaults.textStyle;

   final TextStyle? _actionTextStyle;

   /// The [TextStyle] of interactive text content such as text in a button without background.
   TextStyle get actionTextStyle {
     return _actionTextStyle ?? _defaults.actionTextStyle(primaryColor: _primaryColor);
   }

   final TextStyle? _actionSmallTextStyle;

   /// The [TextStyle] of interactive text content such as text in a small button.
   TextStyle get actionSmallTextStyle {
     return _actionSmallTextStyle ?? _defaults.actionSmallTextStyle(primaryColor: _primaryColor);
   }

   final TextStyle? _tabLabelTextStyle;

   /// The [TextStyle] of unselected tabs.
   TextStyle get tabLabelTextStyle => _tabLabelTextStyle ?? _defaults.tabLabelTextStyle;

   final TextStyle? _navTitleTextStyle;

   /// The [TextStyle] of titles in standard navigation bars.
   TextStyle get navTitleTextStyle => _navTitleTextStyle ?? _defaults.navTitleTextStyle;

   final TextStyle? _navLargeTitleTextStyle;

   /// The [TextStyle] of large titles in sliver navigation bars.
   TextStyle get navLargeTitleTextStyle =>
       _navLargeTitleTextStyle ?? _defaults.navLargeTitleTextStyle;

   final TextStyle? _navActionTextStyle;

   /// The [TextStyle] of interactive text content in navigation bars.
   TextStyle get navActionTextStyle {
     return _navActionTextStyle ?? _defaults.navActionTextStyle(primaryColor: _primaryColor);
   }

   final TextStyle? _pickerTextStyle;

   /// The [TextStyle] of pickers.
   TextStyle get pickerTextStyle => _pickerTextStyle ?? _defaults.pickerTextStyle;

   final TextStyle? _dateTimePickerTextStyle;

   /// The [TextStyle] of date time pickers.
   TextStyle get dateTimePickerTextStyle =>
       _dateTimePickerTextStyle ?? _defaults.dateTimePickerTextStyle;

   /// Returns a copy of the current [CupertinoTextThemeData] with all the colors
   /// resolved against the given [BuildContext].
   ///
   /// If any of the [InheritedWidget]s required to resolve this
   /// [CupertinoTextThemeData] is not found in [context], any unresolved
   /// [CupertinoDynamicColor]s will use the default trait value
   /// ([Brightness.light] platform brightness, normal contrast,
   /// [CupertinoUserInterfaceLevelData.base] elevation level).
   CupertinoTextThemeData resolveFrom(BuildContext context) {
     return CupertinoTextThemeData._raw(
       _defaults.resolveFrom(context),
       CupertinoDynamicColor.maybeResolve(_primaryColor, context),
       _resolveTextStyle(_textStyle, context),
       _resolveTextStyle(_actionTextStyle, context),
       _resolveTextStyle(_actionSmallTextStyle, context),
       _resolveTextStyle(_tabLabelTextStyle, context),
       _resolveTextStyle(_navTitleTextStyle, context),
       _resolveTextStyle(_navLargeTitleTextStyle, context),
       _resolveTextStyle(_navActionTextStyle, context),
       _resolveTextStyle(_pickerTextStyle, context),
       _resolveTextStyle(_dateTimePickerTextStyle, context),
     );
   }

   /// Returns a copy of the current [CupertinoTextThemeData] instance with
   /// specified overrides.
   CupertinoTextThemeData copyWith({
     Color? primaryColor,
     TextStyle? textStyle,
     TextStyle? actionTextStyle,
     TextStyle? actionSmallTextStyle,
     TextStyle? tabLabelTextStyle,
     TextStyle? navTitleTextStyle,
     TextStyle? navLargeTitleTextStyle,
     TextStyle? navActionTextStyle,
     TextStyle? pickerTextStyle,
     TextStyle? dateTimePickerTextStyle,
   }) {
     return CupertinoTextThemeData._raw(
       _defaults,
       primaryColor ?? _primaryColor,
       textStyle ?? _textStyle,
       actionTextStyle ?? _actionTextStyle,
       actionSmallTextStyle ?? _actionSmallTextStyle,
       tabLabelTextStyle ?? _tabLabelTextStyle,
       navTitleTextStyle ?? _navTitleTextStyle,
       navLargeTitleTextStyle ?? _navLargeTitleTextStyle,
       navActionTextStyle ?? _navActionTextStyle,
       pickerTextStyle ?? _pickerTextStyle,
       dateTimePickerTextStyle ?? _dateTimePickerTextStyle,
     );
   }

   @override
   void debugFillProperties(DiagnosticPropertiesBuilder properties) {
     super.debugFillProperties(properties);
     const defaultData = CupertinoTextThemeData();
     properties.add(
       DiagnosticsProperty<TextStyle>('textStyle', textStyle, defaultValue: defaultData.textStyle),
     );
     properties.add(
       DiagnosticsProperty<TextStyle>(
         'actionTextStyle',
         actionTextStyle,
         defaultValue: defaultData.actionTextStyle,
       ),
     );
     properties.add(
       DiagnosticsProperty<TextStyle>(
         'actionSmallTextStyle',
         actionSmallTextStyle,
         defaultValue: defaultData.actionSmallTextStyle,
       ),
     );
     properties.add(
       DiagnosticsProperty<TextStyle>(
         'tabLabelTextStyle',
         tabLabelTextStyle,
         defaultValue: defaultData.tabLabelTextStyle,
       ),
     );
     properties.add(
       DiagnosticsProperty<TextStyle>(
         'navTitleTextStyle',
         navTitleTextStyle,
         defaultValue: defaultData.navTitleTextStyle,
       ),
     );
     properties.add(
       DiagnosticsProperty<TextStyle>(
         'navLargeTitleTextStyle',
         navLargeTitleTextStyle,
         defaultValue: defaultData.navLargeTitleTextStyle,
       ),
     );
     properties.add(
       DiagnosticsProperty<TextStyle>(
         'navActionTextStyle',
         navActionTextStyle,
         defaultValue: defaultData.navActionTextStyle,
       ),
     );
     properties.add(
       DiagnosticsProperty<TextStyle>(
         'pickerTextStyle',
         pickerTextStyle,
         defaultValue: defaultData.pickerTextStyle,
       ),
     );
     properties.add(
       DiagnosticsProperty<TextStyle>(
         'dateTimePickerTextStyle',
         dateTimePickerTextStyle,
         defaultValue: defaultData.dateTimePickerTextStyle,
       ),
     );
   }

   @override
   bool operator ==(Object other) {
     if (identical(this, other)) {
       return true;
     }
     if (other.runtimeType != runtimeType) {
       return false;
     }
     return other is CupertinoTextThemeData &&
         other._defaults == _defaults &&
         other._primaryColor == _primaryColor &&
         other._textStyle == _textStyle &&
         other._actionTextStyle == _actionTextStyle &&
         other._actionSmallTextStyle == _actionSmallTextStyle &&
         other._tabLabelTextStyle == _tabLabelTextStyle &&
         other._navTitleTextStyle == _navTitleTextStyle &&
         other._navLargeTitleTextStyle == _navLargeTitleTextStyle &&
         other._navActionTextStyle == _navActionTextStyle &&
         other._pickerTextStyle == _pickerTextStyle &&
         other._dateTimePickerTextStyle == _dateTimePickerTextStyle;
   }

   @override
   int get hashCode => Object.hash(
     _defaults,
     _primaryColor,
     _textStyle,
     _actionTextStyle,
     _actionSmallTextStyle,
     _tabLabelTextStyle,
     _navTitleTextStyle,
     _navLargeTitleTextStyle,
     _navActionTextStyle,
     _pickerTextStyle,
     _dateTimePickerTextStyle,
   );
 }

 @immutable
 class _TextThemeDefaultsBuilder {
   const _TextThemeDefaultsBuilder(this.labelColor, this.inactiveGrayColor);

   final Color labelColor;
   final Color inactiveGrayColor;

   static TextStyle _applyLabelColor(TextStyle original, Color color) {
     return original.color == color ? original : original.copyWith(color: color);
   }

   TextStyle get textStyle => _applyLabelColor(_kDefaultTextStyle, labelColor);
   TextStyle get tabLabelTextStyle =>
       _applyLabelColor(_kDefaultTabLabelTextStyle, inactiveGrayColor);
   TextStyle get navTitleTextStyle => _applyLabelColor(_kDefaultMiddleTitleTextStyle, labelColor);
   TextStyle get navLargeTitleTextStyle =>
       _applyLabelColor(_kDefaultLargeTitleTextStyle, labelColor);
   TextStyle get pickerTextStyle => _applyLabelColor(_kDefaultPickerTextStyle, labelColor);
   TextStyle get dateTimePickerTextStyle =>
       _applyLabelColor(_kDefaultDateTimePickerTextStyle, labelColor);

   TextStyle actionTextStyle({Color? primaryColor}) =>
       _kDefaultActionTextStyle.copyWith(color: primaryColor);
   TextStyle actionSmallTextStyle({Color? primaryColor}) =>
       _kDefaultActionSmallTextStyle.copyWith(color: primaryColor);
   TextStyle navActionTextStyle({Color? primaryColor}) =>
       actionTextStyle(primaryColor: primaryColor);

   _TextThemeDefaultsBuilder resolveFrom(BuildContext context) {
     final Color resolvedLabelColor = CupertinoDynamicColor.resolve(labelColor, context);
     final Color resolvedInactiveGray = CupertinoDynamicColor.resolve(inactiveGrayColor, context);
     return resolvedLabelColor == labelColor && resolvedInactiveGray == CupertinoColors.inactiveGray
         ? this
         : _TextThemeDefaultsBuilder(resolvedLabelColor, resolvedInactiveGray);
   }

   @override
   bool operator ==(Object other) {
     if (identical(this, other)) {
       return true;
     }
     if (other.runtimeType != runtimeType) {
       return false;
     }
     return other is _TextThemeDefaultsBuilder &&
         other.labelColor == labelColor &&
         other.inactiveGrayColor == inactiveGrayColor;
   }

   @override
   int get hashCode => Object.hash(labelColor, inactiveGrayColor);
 }
	// Copyright 2014 The Flutter Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	/// @docImport 'interface_level.dart';
	/// @docImport 'theme.dart';
	library;

	import 'package:flutter/foundation.dart';
	import 'package:flutter/widgets.dart';

	import 'colors.dart';

	// Please update _TextThemeDefaultsBuilder accordingly after changing the default
	// color here, as their implementation depends on the default value of the color
	// field.
	//
	// Values derived from https://developer.apple.com/design/resources/.
	const TextStyle _kDefaultTextStyle = TextStyle(
	inherit: false,
	fontFamily: 'CupertinoSystemText',
	fontSize: 17.0,
	letterSpacing: -0.41,
	color: CupertinoColors.label,
	decoration: TextDecoration.none,
	);

	// Please update _TextThemeDefaultsBuilder accordingly after changing the default
	// color here, as their implementation depends on the default value of the color
	// field.
	//
	// Values derived from https://developer.apple.com/design/resources/.
	// See [iOS 17 + iPadOS 17 UI Kit](https://www.figma.com/community/file/1248375255495415511) for details.
	const TextStyle _kDefaultActionTextStyle = TextStyle(
	inherit: false,
	fontFamily: 'CupertinoSystemText',
	fontSize: 17.0,
	letterSpacing: -0.41,
	color: CupertinoColors.activeBlue,
	decoration: TextDecoration.none,
	);

	// Please update _TextThemeDefaultsBuilder accordingly after changing the default
	// color here, as their implementation depends on the default value of the color
	// field.
	//
	// Values derived from https://developer.apple.com/design/resources/.
	// See [iOS 17 + iPadOS 17 UI Kit](https://www.figma.com/community/file/1248375255495415511) for details.
	const TextStyle _kDefaultActionSmallTextStyle = TextStyle(
	inherit: false,
	fontFamily: 'CupertinoSystemText',
	fontSize: 15.0,
	letterSpacing: -0.23,
	color: CupertinoColors.activeBlue,
	decoration: TextDecoration.none,
	);

	// Please update _TextThemeDefaultsBuilder accordingly after changing the default
	// color here, as their implementation depends on the default value of the color
	// field.
	//
	// Values derived from https://developer.apple.com/design/resources/.
	const TextStyle _kDefaultTabLabelTextStyle = TextStyle(
	inherit: false,
	fontFamily: 'CupertinoSystemText',
	fontSize: 10.0,
	fontWeight: FontWeight.w500,
	letterSpacing: -0.24,
	color: CupertinoColors.inactiveGray,
	);

	const TextStyle _kDefaultMiddleTitleTextStyle = TextStyle(
	inherit: false,
	fontFamily: 'CupertinoSystemText',
	fontSize: 17.0,
	fontWeight: FontWeight.w600,
	letterSpacing: -0.41,
	color: CupertinoColors.label,
	);

	const TextStyle _kDefaultLargeTitleTextStyle = TextStyle(
	inherit: false,
	fontFamily: 'CupertinoSystemDisplay',
	fontSize: 34.0,
	fontWeight: FontWeight.w700,
	letterSpacing: 0.38,
	color: CupertinoColors.label,
	);

	// Please update _TextThemeDefaultsBuilder accordingly after changing the default
	// color here, as their implementation depends on the default value of the color
	// field.
	//
	// Inspected on iOS 13 simulator with "Debug View Hierarchy".
	// Value extracted from off-center labels. Centered labels have a font size of 25pt.
	//
	// The letterSpacing sourced from iOS 14 simulator screenshots for comparison.
	// See also:
	//
	// * https://github.com/flutter/flutter/pull/65501#discussion_r486557093
	const TextStyle _kDefaultPickerTextStyle = TextStyle(
	inherit: false,
	fontFamily: 'CupertinoSystemDisplay',
	fontSize: 21.0,
	fontWeight: FontWeight.w400,
	letterSpacing: -0.6,
	color: CupertinoColors.label,
	);

	// Please update _TextThemeDefaultsBuilder accordingly after changing the default
	// color here, as their implementation depends on the default value of the color
	// field.
	//
	// Inspected on iOS 13 simulator with "Debug View Hierarchy".
	// Value extracted from off-center labels. Centered labels have a font size of 25pt.
	const TextStyle _kDefaultDateTimePickerTextStyle = TextStyle(
	inherit: false,
	fontFamily: 'CupertinoSystemDisplay',
	fontSize: 21,
	letterSpacing: 0.4,
	fontWeight: FontWeight.normal,
	color: CupertinoColors.label,
	);

	TextStyle? _resolveTextStyle(TextStyle? style, BuildContext context) {
	// This does not resolve the shadow color, foreground, background, etc.
	return style?.copyWith(
	color: CupertinoDynamicColor.maybeResolve(style.color, context),
	backgroundColor: CupertinoDynamicColor.maybeResolve(style.backgroundColor, context),
	decorationColor: CupertinoDynamicColor.maybeResolve(style.decorationColor, context),
	);
	}

	/// Cupertino typography theme in a [CupertinoThemeData].
	@immutable
	class CupertinoTextThemeData with Diagnosticable {
	/// Create a [CupertinoTextThemeData].
	///
	/// The [primaryColor] is used to derive TextStyle defaults of other attributes
	/// such as [navActionTextStyle] and [actionTextStyle]. It must not be null when
	/// either [navActionTextStyle] or [actionTextStyle] is null. Defaults to
	/// [CupertinoColors.systemBlue].
	///
	/// Other [TextStyle] parameters default to default iOS text styles when
	/// unspecified.
	const CupertinoTextThemeData({
	Color primaryColor = CupertinoColors.systemBlue,
	TextStyle? textStyle,
	TextStyle? actionTextStyle,
	TextStyle? actionSmallTextStyle,
	TextStyle? tabLabelTextStyle,
	TextStyle? navTitleTextStyle,
	TextStyle? navLargeTitleTextStyle,
	TextStyle? navActionTextStyle,
	TextStyle? pickerTextStyle,
	TextStyle? dateTimePickerTextStyle,
	}) : this._raw(
	const _TextThemeDefaultsBuilder(CupertinoColors.label, CupertinoColors.inactiveGray),
	primaryColor,
	textStyle,
	actionTextStyle,
	actionSmallTextStyle,
	tabLabelTextStyle,
	navTitleTextStyle,
	navLargeTitleTextStyle,
	navActionTextStyle,
	pickerTextStyle,
	dateTimePickerTextStyle,
	);

	const CupertinoTextThemeData._raw(
	this._defaults,
	this._primaryColor,
	this._textStyle,
	this._actionTextStyle,
	this._actionSmallTextStyle,
	this._tabLabelTextStyle,
	this._navTitleTextStyle,
	this._navLargeTitleTextStyle,
	this._navActionTextStyle,
	this._pickerTextStyle,
	this._dateTimePickerTextStyle,
	) : assert((_navActionTextStyle != null && _actionTextStyle != null) \|\| _primaryColor != null);

	final _TextThemeDefaultsBuilder _defaults;
	final Color? _primaryColor;

	final TextStyle? _textStyle;

	/// The [TextStyle] of general text content for Cupertino widgets.
	TextStyle get textStyle => _textStyle ?? _defaults.textStyle;

	final TextStyle? _actionTextStyle;

	/// The [TextStyle] of interactive text content such as text in a button without background.
	TextStyle get actionTextStyle {
	return _actionTextStyle ?? _defaults.actionTextStyle(primaryColor: _primaryColor);
	}

	final TextStyle? _actionSmallTextStyle;

	/// The [TextStyle] of interactive text content such as text in a small button.
	TextStyle get actionSmallTextStyle {
	return _actionSmallTextStyle ?? _defaults.actionSmallTextStyle(primaryColor: _primaryColor);
	}

	final TextStyle? _tabLabelTextStyle;

	/// The [TextStyle] of unselected tabs.
	TextStyle get tabLabelTextStyle => _tabLabelTextStyle ?? _defaults.tabLabelTextStyle;

	final TextStyle? _navTitleTextStyle;

	/// The [TextStyle] of titles in standard navigation bars.
	TextStyle get navTitleTextStyle => _navTitleTextStyle ?? _defaults.navTitleTextStyle;

	final TextStyle? _navLargeTitleTextStyle;

	/// The [TextStyle] of large titles in sliver navigation bars.
	TextStyle get navLargeTitleTextStyle =>
	_navLargeTitleTextStyle ?? _defaults.navLargeTitleTextStyle;

	final TextStyle? _navActionTextStyle;

	/// The [TextStyle] of interactive text content in navigation bars.
	TextStyle get navActionTextStyle {
	return _navActionTextStyle ?? _defaults.navActionTextStyle(primaryColor: _primaryColor);
	}

	final TextStyle? _pickerTextStyle;

	/// The [TextStyle] of pickers.
	TextStyle get pickerTextStyle => _pickerTextStyle ?? _defaults.pickerTextStyle;

	final TextStyle? _dateTimePickerTextStyle;

	/// The [TextStyle] of date time pickers.
	TextStyle get dateTimePickerTextStyle =>
	_dateTimePickerTextStyle ?? _defaults.dateTimePickerTextStyle;

	/// Returns a copy of the current [CupertinoTextThemeData] with all the colors
	/// resolved against the given [BuildContext].
	///
	/// If any of the [InheritedWidget]s required to resolve this
	/// [CupertinoTextThemeData] is not found in [context], any unresolved
	/// [CupertinoDynamicColor]s will use the default trait value
	/// ([Brightness.light] platform brightness, normal contrast,
	/// [CupertinoUserInterfaceLevelData.base] elevation level).
	CupertinoTextThemeData resolveFrom(BuildContext context) {
	return CupertinoTextThemeData._raw(
	_defaults.resolveFrom(context),
	CupertinoDynamicColor.maybeResolve(_primaryColor, context),
	_resolveTextStyle(_textStyle, context),
	_resolveTextStyle(_actionTextStyle, context),
	_resolveTextStyle(_actionSmallTextStyle, context),
	_resolveTextStyle(_tabLabelTextStyle, context),
	_resolveTextStyle(_navTitleTextStyle, context),
	_resolveTextStyle(_navLargeTitleTextStyle, context),
	_resolveTextStyle(_navActionTextStyle, context),
	_resolveTextStyle(_pickerTextStyle, context),
	_resolveTextStyle(_dateTimePickerTextStyle, context),
	);
	}

	/// Returns a copy of the current [CupertinoTextThemeData] instance with
	/// specified overrides.
	CupertinoTextThemeData copyWith({
	Color? primaryColor,
	TextStyle? textStyle,
	TextStyle? actionTextStyle,
	TextStyle? actionSmallTextStyle,
	TextStyle? tabLabelTextStyle,
	TextStyle? navTitleTextStyle,
	TextStyle? navLargeTitleTextStyle,
	TextStyle? navActionTextStyle,
	TextStyle? pickerTextStyle,
	TextStyle? dateTimePickerTextStyle,
	}) {
	return CupertinoTextThemeData._raw(
	_defaults,
	primaryColor ?? _primaryColor,
	textStyle ?? _textStyle,
	actionTextStyle ?? _actionTextStyle,
	actionSmallTextStyle ?? _actionSmallTextStyle,
	tabLabelTextStyle ?? _tabLabelTextStyle,
	navTitleTextStyle ?? _navTitleTextStyle,
	navLargeTitleTextStyle ?? _navLargeTitleTextStyle,
	navActionTextStyle ?? _navActionTextStyle,
	pickerTextStyle ?? _pickerTextStyle,
	dateTimePickerTextStyle ?? _dateTimePickerTextStyle,
	);
	}

	@override
	void debugFillProperties(DiagnosticPropertiesBuilder properties) {
	super.debugFillProperties(properties);
	const defaultData = CupertinoTextThemeData();
	properties.add(
	DiagnosticsProperty<TextStyle>('textStyle', textStyle, defaultValue: defaultData.textStyle),
	);
	properties.add(
	DiagnosticsProperty<TextStyle>(
	'actionTextStyle',
	actionTextStyle,
	defaultValue: defaultData.actionTextStyle,
	),
	);
	properties.add(
	DiagnosticsProperty<TextStyle>(
	'actionSmallTextStyle',
	actionSmallTextStyle,
	defaultValue: defaultData.actionSmallTextStyle,
	),
	);
	properties.add(
	DiagnosticsProperty<TextStyle>(
	'tabLabelTextStyle',
	tabLabelTextStyle,
	defaultValue: defaultData.tabLabelTextStyle,
	),
	);
	properties.add(
	DiagnosticsProperty<TextStyle>(
	'navTitleTextStyle',
	navTitleTextStyle,
	defaultValue: defaultData.navTitleTextStyle,
	),
	);
	properties.add(
	DiagnosticsProperty<TextStyle>(
	'navLargeTitleTextStyle',
	navLargeTitleTextStyle,
	defaultValue: defaultData.navLargeTitleTextStyle,
	),
	);
	properties.add(
	DiagnosticsProperty<TextStyle>(
	'navActionTextStyle',
	navActionTextStyle,
	defaultValue: defaultData.navActionTextStyle,
	),
	);
	properties.add(
	DiagnosticsProperty<TextStyle>(
	'pickerTextStyle',
	pickerTextStyle,
	defaultValue: defaultData.pickerTextStyle,
	),
	);
	properties.add(
	DiagnosticsProperty<TextStyle>(
	'dateTimePickerTextStyle',
	dateTimePickerTextStyle,
	defaultValue: defaultData.dateTimePickerTextStyle,
	),
	);
	}

	@override
	bool operator ==(Object other) {
	if (identical(this, other)) {
	return true;
	}
	if (other.runtimeType != runtimeType) {
	return false;
	}
	return other is CupertinoTextThemeData &&
	other._defaults == _defaults &&
	other._primaryColor == _primaryColor &&
	other._textStyle == _textStyle &&
	other._actionTextStyle == _actionTextStyle &&
	other._actionSmallTextStyle == _actionSmallTextStyle &&
	other._tabLabelTextStyle == _tabLabelTextStyle &&
	other._navTitleTextStyle == _navTitleTextStyle &&
	other._navLargeTitleTextStyle == _navLargeTitleTextStyle &&
	other._navActionTextStyle == _navActionTextStyle &&
	other._pickerTextStyle == _pickerTextStyle &&
	other._dateTimePickerTextStyle == _dateTimePickerTextStyle;
	}

	@override
	int get hashCode => Object.hash(
	_defaults,
	_primaryColor,
	_textStyle,
	_actionTextStyle,
	_actionSmallTextStyle,
	_tabLabelTextStyle,
	_navTitleTextStyle,
	_navLargeTitleTextStyle,
	_navActionTextStyle,
	_pickerTextStyle,
	_dateTimePickerTextStyle,
	);
	}

	@immutable
	class _TextThemeDefaultsBuilder {
	const _TextThemeDefaultsBuilder(this.labelColor, this.inactiveGrayColor);

	final Color labelColor;
	final Color inactiveGrayColor;

	static TextStyle _applyLabelColor(TextStyle original, Color color) {
	return original.color == color ? original : original.copyWith(color: color);
	}

	TextStyle get textStyle => _applyLabelColor(_kDefaultTextStyle, labelColor);
	TextStyle get tabLabelTextStyle =>
	_applyLabelColor(_kDefaultTabLabelTextStyle, inactiveGrayColor);
	TextStyle get navTitleTextStyle => _applyLabelColor(_kDefaultMiddleTitleTextStyle, labelColor);
	TextStyle get navLargeTitleTextStyle =>
	_applyLabelColor(_kDefaultLargeTitleTextStyle, labelColor);
	TextStyle get pickerTextStyle => _applyLabelColor(_kDefaultPickerTextStyle, labelColor);
	TextStyle get dateTimePickerTextStyle =>
	_applyLabelColor(_kDefaultDateTimePickerTextStyle, labelColor);

	TextStyle actionTextStyle({Color? primaryColor}) =>
	_kDefaultActionTextStyle.copyWith(color: primaryColor);
	TextStyle actionSmallTextStyle({Color? primaryColor}) =>
	_kDefaultActionSmallTextStyle.copyWith(color: primaryColor);
	TextStyle navActionTextStyle({Color? primaryColor}) =>
	actionTextStyle(primaryColor: primaryColor);

	_TextThemeDefaultsBuilder resolveFrom(BuildContext context) {
	final Color resolvedLabelColor = CupertinoDynamicColor.resolve(labelColor, context);
	final Color resolvedInactiveGray = CupertinoDynamicColor.resolve(inactiveGrayColor, context);
	return resolvedLabelColor == labelColor && resolvedInactiveGray == CupertinoColors.inactiveGray
	? this
	: _TextThemeDefaultsBuilder(resolvedLabelColor, resolvedInactiveGray);
	}

	@override
	bool operator ==(Object other) {
	if (identical(this, other)) {
	return true;
	}
	if (other.runtimeType != runtimeType) {
	return false;
	}
	return other is _TextThemeDefaultsBuilder &&
	other.labelColor == labelColor &&
	other.inactiveGrayColor == inactiveGrayColor;
	}

	@override
	int get hashCode => Object.hash(labelColor, inactiveGrayColor);
	}