Konstantin Shcheglov
65f8cd4365
Only self properties for now. No compound properties. No virtual Container properties. R=brianwilkerson@google.com Change-Id: Icd61f45ecc95c45037c3998a927eb267fd13c4cd Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/109121 Reviewed-by: Brian Wilkerson <brianwilkerson@google.com> Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
132 lines
3.1 KiB
Dart
132 lines
3.1 KiB
Dart
// Copyright 2013 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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part of dart.ui;
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/// Whether to slant the glyphs in the font
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enum FontStyle {
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/// Use the upright glyphs
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normal,
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/// Use glyphs designed for slanting
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italic,
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}
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/// The thickness of the glyphs used to draw the text
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class FontWeight {
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/// Thin, the least thick
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static const FontWeight w100 = const FontWeight._(0);
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/// Extra-light
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static const FontWeight w200 = const FontWeight._(1);
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/// Light
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static const FontWeight w300 = const FontWeight._(2);
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/// Normal / regular / plain
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static const FontWeight w400 = const FontWeight._(3);
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/// Medium
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static const FontWeight w500 = const FontWeight._(4);
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/// Semi-bold
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static const FontWeight w600 = const FontWeight._(5);
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/// Bold
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static const FontWeight w700 = const FontWeight._(6);
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/// Extra-bold
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static const FontWeight w800 = const FontWeight._(7);
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/// Black, the most thick
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static const FontWeight w900 = const FontWeight._(8);
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/// The default font weight.
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static const FontWeight normal = w400;
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/// A commonly used font weight that is heavier than normal.
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static const FontWeight bold = w700;
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/// A list of all the font weights.
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static const List<FontWeight> values = const <FontWeight>[
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w100,
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w200,
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w300,
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w400,
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w500,
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w600,
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w700,
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w800,
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w900
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];
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/// The encoded integer value of this font weight.
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final int index;
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const FontWeight._(this.index);
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@override
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String toString() {
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return const <int, String>{
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0: 'FontWeight.w100',
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1: 'FontWeight.w200',
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2: 'FontWeight.w300',
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3: 'FontWeight.w400',
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4: 'FontWeight.w500',
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5: 'FontWeight.w600',
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6: 'FontWeight.w700',
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7: 'FontWeight.w800',
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8: 'FontWeight.w900',
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}[index];
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}
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}
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enum TextAlign {
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/// Align the text on the left edge of the container.
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left,
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/// Align the text on the right edge of the container.
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right,
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/// Align the text in the center of the container.
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center,
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/// Stretch lines of text that end with a soft line break to fill the width of
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/// the container.
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///
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/// Lines that end with hard line breaks are aligned towards the [start] edge.
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justify,
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/// Align the text on the leading edge of the container.
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///
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/// For left-to-right text ([TextDirection.ltr]), this is the left edge.
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///
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/// For right-to-left text ([TextDirection.rtl]), this is the right edge.
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start,
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/// Align the text on the trailing edge of the container.
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///
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/// For left-to-right text ([TextDirection.ltr]), this is the right edge.
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///
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/// For right-to-left text ([TextDirection.rtl]), this is the left edge.
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end,
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}
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/// A horizontal line used for aligning text.
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enum TextBaseline {
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/// The horizontal line used to align the bottom of glyphs for alphabetic characters.
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alphabetic,
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/// The horizontal line used to align ideographic characters.
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ideographic,
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}
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enum TextDirection {
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/// The text flows from right to left (e.g. Arabic, Hebrew).
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rtl,
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/// The text flows from left to right (e.g., English, French).
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ltr,
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}
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