aves/lib/thumbnail_collection.dart

114 lines
3.5 KiB
Dart

import 'package:aves/common/draggable_scrollbar.dart';
import 'package:aves/common/outlined_text.dart';
import 'package:aves/image_fullscreen_page.dart';
import 'package:aves/model/image_entry.dart';
import 'package:aves/thumbnail.dart';
import 'package:aves/utils/date_utils.dart';
import "package:collection/collection.dart";
import 'package:flutter/material.dart';
import 'package:flutter_sticky_header/flutter_sticky_header.dart';
import 'package:intl/intl.dart';
class ThumbnailCollection extends StatelessWidget {
final List<Map> entries;
final Map<DateTime, List<Map>> sections;
final ScrollController scrollController = ScrollController();
ThumbnailCollection(this.entries) : sections = groupBy(entries, ImageEntry.getDayTaken);
@override
Widget build(BuildContext context) {
var columnCount = 4;
var extent = MediaQuery.of(context).size.width / columnCount;
return DraggableScrollbar.arrows(
labelTextBuilder: (double offset) => Text(
"${offset ~/ 1}",
style: TextStyle(color: Colors.blueGrey),
),
controller: scrollController,
child: CustomScrollView(
controller: scrollController,
slivers: [
SliverAppBar(
title: Text('Aves - All'),
floating: true,
),
...sections.keys.map((sectionKey) => SliverStickyHeader(
header: DaySectionHeader(sectionKey),
sliver: SliverGrid(
delegate: SliverChildBuilderDelegate(
(context, index) {
var sectionEntries = sections[sectionKey];
if (index >= sectionEntries.length) return null;
var entry = sectionEntries[index];
return GestureDetector(
onTap: () => Navigator.push(
context,
MaterialPageRoute(
builder: (context) => ImageFullscreenPage(
entries: entries,
initialUri: entry['uri'],
),
),
),
child: Thumbnail(
entry: entry,
extent: extent,
),
);
},
childCount: sections[sectionKey].length,
),
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: columnCount,
),
),
))
],
),
);
}
}
class DaySectionHeader extends StatelessWidget {
final String text;
static DateFormat md = DateFormat.MMMMd();
static DateFormat ymd = DateFormat.yMMMMd();
static formatDate(DateTime date) {
if (isToday(date)) return 'Today';
if (isThisYear(date)) return md.format(date);
return ymd.format(date);
}
DaySectionHeader(DateTime date) : text = formatDate(date);
@override
Widget build(BuildContext context) {
return SectionHeader(text);
}
}
class SectionHeader extends StatelessWidget {
final String primaryText;
SectionHeader(this.primaryText);
@override
Widget build(BuildContext context) {
return Container(
padding: EdgeInsets.all(16),
child: OutlinedText(
primaryText,
style: TextStyle(
color: Colors.white,
fontSize: 20,
),
outlineColor: Colors.black87,
outlineWidth: 2,
),
);
}
}