67 lines
2.2 KiB
Dart
67 lines
2.2 KiB
Dart
import 'package:aves/widgets/common/extensions/build_context.dart';
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import 'package:aves/widgets/common/grid/section_layout.dart';
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import 'package:flutter/material.dart';
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import 'package:intl/intl.dart';
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import 'package:provider/provider.dart';
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class DraggableThumbLabel<T> extends StatelessWidget {
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final double offsetY;
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final List<String> Function(BuildContext context, T item) lineBuilder;
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const DraggableThumbLabel({
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Key? key,
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required this.offsetY,
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required this.lineBuilder,
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}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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final sll = context.read<SectionedListLayout<T>>();
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final sectionLayout = sll.getSectionAt(offsetY);
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if (sectionLayout == null) return const SizedBox();
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final section = sll.sections[sectionLayout.sectionKey]!;
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final dy = offsetY - (sectionLayout.minOffset + sectionLayout.headerExtent);
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final itemIndex = dy < 0 ? 0 : (dy ~/ (sll.tileExtent + sll.spacing)) * sll.columnCount;
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final item = section[itemIndex];
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final lines = lineBuilder(context, item);
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if (lines.isEmpty) return const SizedBox();
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return ConstrainedBox(
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constraints: const BoxConstraints(maxWidth: 140),
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child: Padding(
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padding: const EdgeInsets.symmetric(vertical: 4, horizontal: 8),
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child: lines.length > 1
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? Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.end,
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children: lines.map(_buildText).toList(),
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)
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: _buildText(lines.first),
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),
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);
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}
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Widget _buildText(String text) => Text(
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text,
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style: const TextStyle(
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color: Colors.black,
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),
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softWrap: false,
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overflow: TextOverflow.fade,
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maxLines: 1,
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);
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static String formatMonthThumbLabel(BuildContext context, DateTime? date) {
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final l10n = context.l10n;
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if (date == null) return l10n.sectionUnknown;
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return DateFormat.yMMM(l10n.localeName).format(date);
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}
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static String formatDayThumbLabel(BuildContext context, DateTime? date) {
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final l10n = context.l10n;
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if (date == null) return l10n.sectionUnknown;
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return DateFormat.yMMMd(l10n.localeName).format(date);
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}
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}
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