67 lines
1.9 KiB
Dart
67 lines
1.9 KiB
Dart
import 'dart:async';
|
|
import 'dart:typed_data';
|
|
|
|
import 'package:aves/model/image_entry.dart';
|
|
import 'package:aves/services/metadata_service.dart';
|
|
import 'package:flutter/material.dart';
|
|
|
|
enum MetadataThumbnailSource { embedded, exif }
|
|
|
|
class MetadataThumbnails extends StatefulWidget {
|
|
final MetadataThumbnailSource source;
|
|
final ImageEntry entry;
|
|
|
|
const MetadataThumbnails({
|
|
Key key,
|
|
@required this.source,
|
|
@required this.entry,
|
|
}) : super(key: key);
|
|
|
|
@override
|
|
_MetadataThumbnailsState createState() => _MetadataThumbnailsState();
|
|
}
|
|
|
|
class _MetadataThumbnailsState extends State<MetadataThumbnails> {
|
|
Future<List<Uint8List>> _loader;
|
|
|
|
ImageEntry get entry => widget.entry;
|
|
|
|
String get uri => entry.uri;
|
|
|
|
@override
|
|
void initState() {
|
|
super.initState();
|
|
switch (widget.source) {
|
|
case MetadataThumbnailSource.embedded:
|
|
_loader = MetadataService.getEmbeddedPictures(uri);
|
|
break;
|
|
case MetadataThumbnailSource.exif:
|
|
_loader = MetadataService.getExifThumbnails(entry);
|
|
break;
|
|
}
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return FutureBuilder<List<Uint8List>>(
|
|
future: _loader,
|
|
builder: (context, snapshot) {
|
|
if (!snapshot.hasError && snapshot.connectionState == ConnectionState.done && snapshot.data.isNotEmpty) {
|
|
final devicePixelRatio = MediaQuery.of(context).devicePixelRatio;
|
|
return Container(
|
|
alignment: AlignmentDirectional.topStart,
|
|
padding: EdgeInsets.only(left: 8, top: 8, right: 8, bottom: 4),
|
|
child: Wrap(
|
|
children: snapshot.data.map((bytes) {
|
|
return Image.memory(
|
|
bytes,
|
|
scale: devicePixelRatio,
|
|
);
|
|
}).toList(),
|
|
),
|
|
);
|
|
}
|
|
return SizedBox.shrink();
|
|
});
|
|
}
|
|
}
|