28 lines
938 B
Dart
28 lines
938 B
Dart
import 'package:aves/model/source/section_keys.dart';
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import 'package:aves/widgets/common/grid/sections/section_layout.dart';
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import 'package:collection/collection.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/rendering.dart';
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abstract class SectionedListLayout<T> {
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final Map<SectionKey, List<T>> sections;
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final bool showHeaders;
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final double spacing, horizontalPadding;
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final List<SectionLayout> sectionLayouts;
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const SectionedListLayout({
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required this.sections,
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required this.showHeaders,
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required this.spacing,
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required this.horizontalPadding,
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required this.sectionLayouts,
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});
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// returns tile rectangle in layout space, i.e. x=0 is start
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Rect? getTileRect(T item);
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SectionLayout? getSectionAt(double offsetY) => sectionLayouts.firstWhereOrNull((sl) => offsetY < sl.maxOffset);
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// `position` in layout space, i.e. x=0 is start
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T? getItemAt(Offset position);
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}
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