74 lines
2.2 KiB
Dart
74 lines
2.2 KiB
Dart
import 'dart:async';
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import 'dart:typed_data';
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import 'package:aves/model/image_entry.dart';
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import 'package:aves/services/metadata_service.dart';
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import 'package:flutter/material.dart';
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enum MetadataThumbnailSource { embedded, exif, xmp }
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class MetadataThumbnails extends StatefulWidget {
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final MetadataThumbnailSource source;
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final ImageEntry entry;
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const MetadataThumbnails({
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Key key,
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@required this.source,
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@required this.entry,
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}) : super(key: key);
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@override
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_MetadataThumbnailsState createState() => _MetadataThumbnailsState();
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}
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class _MetadataThumbnailsState extends State<MetadataThumbnails> {
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Future<List<Uint8List>> _loader;
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ImageEntry get entry => widget.entry;
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String get uri => entry.uri;
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@override
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void initState() {
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super.initState();
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switch (widget.source) {
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case MetadataThumbnailSource.embedded:
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_loader = MetadataService.getEmbeddedPictures(uri);
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break;
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case MetadataThumbnailSource.exif:
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_loader = MetadataService.getExifThumbnails(uri);
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break;
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case MetadataThumbnailSource.xmp:
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_loader = MetadataService.getXmpThumbnails(entry);
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break;
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}
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}
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@override
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Widget build(BuildContext context) {
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return FutureBuilder<List<Uint8List>>(
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future: _loader,
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builder: (context, snapshot) {
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if (!snapshot.hasError && snapshot.connectionState == ConnectionState.done && snapshot.data.isNotEmpty) {
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final turns = (entry.rotationDegrees / 90).round();
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final devicePixelRatio = MediaQuery.of(context).devicePixelRatio;
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return Container(
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alignment: AlignmentDirectional.topStart,
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padding: EdgeInsets.only(left: 8, top: 8, right: 8, bottom: 4),
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child: Wrap(
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children: snapshot.data.map((bytes) {
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return RotatedBox(
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quarterTurns: turns,
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child: Image.memory(
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bytes,
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scale: devicePixelRatio,
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),
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);
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}).toList(),
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),
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);
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}
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return SizedBox.shrink();
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});
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}
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}
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