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70 lines
2.4 KiB
Dart
70 lines
2.4 KiB
Dart
import 'package:immich_mobile/domain/models/timeline.model.dart';
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import 'package:immich_mobile/extensions/datetime_extensions.dart';
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import 'package:immich_mobile/presentation/widgets/timeline/fixed/segment.model.dart';
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import 'package:immich_mobile/presentation/widgets/timeline/segment.model.dart';
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import 'package:immich_mobile/presentation/widgets/timeline/segment_builder.dart';
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class FixedSegmentBuilder extends SegmentBuilder {
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final double tileHeight;
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final int columnCount;
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static final DateTime _dummyDate = DateTime.fromMicrosecondsSinceEpoch(0);
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const FixedSegmentBuilder({
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required super.buckets,
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required this.tileHeight,
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required this.columnCount,
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super.spacing,
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super.groupBy,
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});
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List<Segment> generate() {
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final segments = List.filled(buckets.length, const FixedSegment.empty());
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int firstIndex = 0;
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double startOffset = 0;
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int assetIndex = 0;
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DateTime previousDate = _dummyDate;
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for (int i = 0; i < buckets.length; i++) {
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final bucket = buckets[i];
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final assetCount = bucket.assetCount;
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final numberOfRows = (assetCount / columnCount).ceil();
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final segmentCount = numberOfRows + 1;
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final segmentFirstIndex = firstIndex;
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firstIndex += segmentCount;
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final segmentLastIndex = firstIndex - 1;
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final timelineHeader = switch (groupBy) {
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GroupAssetsBy.month => HeaderType.month,
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GroupAssetsBy.day || GroupAssetsBy.auto =>
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bucket is TimeBucket && !previousDate.isSameMonth(bucket.date) ? HeaderType.monthAndDay : HeaderType.day,
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GroupAssetsBy.none => HeaderType.none,
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};
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final headerExtent = SegmentBuilder.headerExtent(timelineHeader);
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final segmentStartOffset = startOffset;
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startOffset += headerExtent + (tileHeight * numberOfRows) + spacing * (numberOfRows - 1);
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final segmentEndOffset = startOffset;
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segments[i] = FixedSegment(
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firstIndex: segmentFirstIndex,
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lastIndex: segmentLastIndex,
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startOffset: segmentStartOffset,
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endOffset: segmentEndOffset,
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firstAssetIndex: assetIndex,
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bucket: bucket,
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tileHeight: tileHeight,
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columnCount: columnCount,
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headerExtent: headerExtent,
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spacing: spacing,
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header: timelineHeader,
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);
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assetIndex += assetCount;
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if (bucket is TimeBucket) {
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previousDate = bucket.date;
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}
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}
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return segments;
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}
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}
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