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2d4f5a65c4
Fixes https://github.com/flutter/flutter/issues/143482 This brings in the gallery more or less as is: * Removed localizations * Ensure tests still run (locally verified, will switch CI later). * Removed deferred components * Fixup pubspec
43 lines
1.7 KiB
Dart
43 lines
1.7 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 'dart:math';
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import 'package:flutter/material.dart';
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import '../data/gallery_options.dart';
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double _textScaleFactor(BuildContext context) {
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return GalleryOptions.of(context).textScaleFactor(context);
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}
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// When text is larger, this factor becomes larger, but at half the rate.
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//
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// | Text scaling | Text scale factor | reducedTextScale(context) |
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// |--------------|-------------------|---------------------------|
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// | Small | 0.8 | 1.0 |
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// | Normal | 1.0 | 1.0 |
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// | Large | 2.0 | 1.5 |
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// | Huge | 3.0 | 2.0 |
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double reducedTextScale(BuildContext context) {
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final double textScaleFactor = _textScaleFactor(context);
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return textScaleFactor >= 1 ? (1 + textScaleFactor) / 2 : 1;
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}
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// When text is larger, this factor becomes larger at the same rate.
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// But when text is smaller, this factor stays at 1.
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//
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// | Text scaling | Text scale factor | cappedTextScale(context) |
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// |--------------|-------------------|---------------------------|
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// | Small | 0.8 | 1.0 |
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// | Normal | 1.0 | 1.0 |
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// | Large | 2.0 | 2.0 |
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// | Huge | 3.0 | 3.0 |
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double cappedTextScale(BuildContext context) {
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final double textScaleFactor = _textScaleFactor(context);
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return max(textScaleFactor, 1);
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}
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