104 lines
2.7 KiB
Dart
104 lines
2.7 KiB
Dart
import 'dart:math';
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import 'package:aves/model/image_entry.dart';
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import 'package:aves/widgets/common/icons.dart';
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import 'package:aves/widgets/common/image_preview.dart';
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import 'package:flutter/material.dart';
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class Thumbnail extends StatelessWidget {
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final ImageEntry entry;
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final double extent;
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final double devicePixelRatio;
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const Thumbnail({
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Key key,
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@required this.entry,
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@required this.extent,
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@required this.devicePixelRatio,
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}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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final image = ImagePreview(
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entry: entry,
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width: extent,
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height: extent,
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devicePixelRatio: devicePixelRatio,
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builder: (bytes) {
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return Hero(
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tag: entry.uri,
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flightShuttleBuilder: (
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BuildContext flightContext,
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Animation<double> animation,
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HeroFlightDirection flightDirection,
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BuildContext fromHeroContext,
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BuildContext toHeroContext,
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) {
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// use LayoutBuilder only during hero animation
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return LayoutBuilder(builder: (context, constraints) {
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final dim = min(constraints.maxWidth, constraints.maxHeight);
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return Image.memory(
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bytes,
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width: dim,
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height: dim,
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fit: BoxFit.cover,
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);
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});
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},
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child: Image.memory(
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bytes,
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width: extent,
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height: extent,
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fit: BoxFit.cover,
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),
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);
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},
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);
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final icons = _buildOverlayIcons();
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return Container(
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decoration: BoxDecoration(
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border: Border.all(
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color: Colors.grey.shade700,
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width: 0.5,
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),
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),
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child: icons != null
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? Stack(
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alignment: AlignmentDirectional.bottomStart,
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children: [
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image,
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icons,
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],
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)
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: image,
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);
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}
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Widget _buildOverlayIcons() {
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final fontSize = min(14.0, (extent / 8).roundToDouble());
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final iconSize = fontSize * 2;
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final icons = [
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if (entry.hasGps) GpsIcon(iconSize: iconSize),
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if (entry.isGif)
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GifIcon(iconSize: iconSize)
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else if (entry.isVideo)
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VideoIcon(
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entry: entry,
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iconSize: iconSize,
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),
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];
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return icons.isNotEmpty
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? DefaultTextStyle(
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style: TextStyle(
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color: Colors.grey[200],
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fontSize: fontSize,
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),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.end,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: icons,
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),
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)
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: null;
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}
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}
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