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Merge pull request #454 from lamarios/feature/dependency-updates-2024…
…0112 update dependencies
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,164 @@ | ||
| import 'dart:math'; | ||
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| import 'package:intl/intl.dart'; | ||
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| const BYTE_UNITS = [ | ||
| 'B', | ||
| 'KB', | ||
| 'MB', | ||
| 'GB', | ||
| 'TB', | ||
| 'PB', | ||
| 'EB', | ||
| 'ZB', | ||
| 'YB', | ||
| ]; | ||
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| const BIBYTE_UNITS = [ | ||
| 'B', | ||
| 'KiB', | ||
| 'MiB', | ||
| 'GiB', | ||
| 'TiB', | ||
| 'PiB', | ||
| 'EiB', | ||
| 'ZiB', | ||
| 'YiB', | ||
| ]; | ||
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| const BIT_UNITS = [ | ||
| 'b', | ||
| 'Kbit', | ||
| 'Mbit', | ||
| 'Gbit', | ||
| 'Tbit', | ||
| 'Pbit', | ||
| 'Ebit', | ||
| 'Zbit', | ||
| 'Ybit', | ||
| ]; | ||
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| const BIBIT_UNITS = [ | ||
| 'b', | ||
| 'Kibit', | ||
| 'Mibit', | ||
| 'Gibit', | ||
| 'Tibit', | ||
| 'Pibit', | ||
| 'Eibit', | ||
| 'Zibit', | ||
| 'Yibit', | ||
| ]; | ||
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| double log10(num x) => log(x) / ln10; | ||
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| var removeTrailingZerosRegex = RegExp(r'([.]*0)(?!.*\d)'); | ||
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| String toLocaleString(double number, String? locale, int? minimumFractionDigits, | ||
| int? maximumFractionDigits) { | ||
| if (locale == null) { | ||
| return number.toString().replaceAll(removeTrailingZerosRegex, ''); | ||
| } | ||
| final formatter = NumberFormat(null, locale); | ||
| if (maximumFractionDigits != null) { | ||
| formatter.minimumFractionDigits = minimumFractionDigits!; | ||
| } | ||
| if (minimumFractionDigits != null) { | ||
| formatter.maximumFractionDigits = maximumFractionDigits!; | ||
| } | ||
| return formatter.format(number); | ||
| } | ||
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| String prettyBytes( | ||
| double number, { | ||
| /// Include plus sign for positive numbers. If the difference is exactly zero a space character will be prepended instead for better alignment. | ||
| /// Default: false. | ||
| bool? signed, | ||
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| /// - If `null`: Output won't be localized. | ||
| /// - If `string`: Expects a [BCP 47 language tag](https://en.wikipedia.org/wiki/IETF_language_tag) (For example: `en`, `de`, …) | ||
| /// @default null | ||
| String? locale, | ||
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| /// Format the number as [bits](https://en.wikipedia.org/wiki/Bit) instead of [bytes](https://en.wikipedia.org/wiki/Byte). This can be useful when, for example, referring to [bit rate](https://en.wikipedia.org/wiki/Bit_rate). | ||
| /// Default: false. | ||
| /// @example | ||
| /// ``` | ||
| /// prettyBytes(1337, bits: true); | ||
| /// //=> '1.34 kbit' | ||
| /// ``` | ||
| bool? bits, | ||
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| /// Format the number using the [Binary Prefix](https://en.wikipedia.org/wiki/Binary_prefix) instead of the [SI Prefix](https://en.wikipedia.org/wiki/SI_prefix). This can be useful for presenting memory amounts. However, this should not be used for presenting file sizes. | ||
| /// Default: false. | ||
| /// @example | ||
| /// ``` | ||
| /// prettyBytes(1000, binary: true); | ||
| /// //=> '1000 bit' | ||
| /// prettyBytes(1024, binary: true); | ||
| /// //=> '1 kiB' | ||
| /// ``` | ||
| bool? binary, | ||
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| /// The minimum number of fraction digits to display. | ||
| /// If neither `minimumFractionDigits` or `maximumFractionDigits` are set, the default behavior is to round to 3 significant digits. | ||
| /// @default null | ||
| /// ``` | ||
| /// // Show the number with at least 3 fractional digits | ||
| /// prettyBytes(1900, {minimumFractionDigits: 3}); | ||
| /// //=> '1.900 kB' | ||
| /// prettyBytes(1900); | ||
| /// //=> '1.9 kB' | ||
| /// ``` | ||
| int? minimumFractionDigits, | ||
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| /// The maximum number of fraction digits to display. | ||
| /// If neither `minimumFractionDigits` or `maximumFractionDigits` are set, the default behavior is to round to 3 significant digits. | ||
| /// @default null | ||
| /// ``` | ||
| /// // Show the number with at most 1 fractional digit | ||
| /// prettyBytes(1920, {maximumFractionDigits: 1}); | ||
| /// //=> '1.9 kB' | ||
| /// prettyBytes(1920); | ||
| /// //=> '1.92 kB' | ||
| /// ``` | ||
| int? maximumFractionDigits, | ||
| }) { | ||
| final UNITS = (bits == true) | ||
| ? (binary == true ? BIBIT_UNITS : BIT_UNITS) | ||
| : (binary == true ? BIBYTE_UNITS : BYTE_UNITS); | ||
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| if (signed == true && number == 0) { | ||
| return ' 0 ${UNITS[0]}'; | ||
| } | ||
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| final isNegative = number < 0; | ||
| final prefix = isNegative ? '-' : (signed == true ? '+' : ''); | ||
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| if (isNegative) { | ||
| number = -number; | ||
| } | ||
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| if (number < 1) { | ||
| final numberStr = toLocaleString( | ||
| number, locale, minimumFractionDigits, maximumFractionDigits); | ||
| return prefix + numberStr + ' ' + UNITS[0]; | ||
| } | ||
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| final exponent = min( | ||
| (binary != null ? log(number) / log(1024) : log10(number) / 3) | ||
| .floorToDouble(), | ||
| (UNITS.length - 1).toDouble()) | ||
| .toInt(); | ||
| number /= pow(binary != null ? 1024 : 1000, exponent); | ||
| if (minimumFractionDigits == null && maximumFractionDigits == null) { | ||
| number = double.parse(number.toStringAsPrecision(3)); | ||
| } | ||
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| final numberStr = toLocaleString( | ||
| number, locale, minimumFractionDigits, maximumFractionDigits); | ||
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| final unit = UNITS[exponent]; | ||
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| return '$prefix$numberStr $unit'; | ||
| } |
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