aves/lib/widgets/common/fx/borders.dart
2022-03-16 12:44:32 +09:00

27 lines
965 B
Dart

import 'dart:ui';
import 'package:flutter/material.dart';
class AvesBorder {
static Color _borderColor(BuildContext context) => Theme.of(context).brightness == Brightness.dark ? Colors.white30 : Colors.black26;
// directly uses `devicePixelRatio` as it never changes, to avoid visiting ancestors via `MediaQuery`
// 1 device pixel for straight lines is fine
static double get straightBorderWidth => 1 / window.devicePixelRatio;
// 1 device pixel for curves is too thin
static double get curvedBorderWidth => window.devicePixelRatio > 2 ? 0.5 : 1.0;
static BorderSide straightSide(BuildContext context) => BorderSide(
color: _borderColor(context),
width: straightBorderWidth,
);
static BorderSide curvedSide(BuildContext context) => BorderSide(
color: _borderColor(context),
width: curvedBorderWidth,
);
static Border border(BuildContext context) => Border.fromBorderSide(curvedSide(context));
}